./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w8_d16_e0.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w8_d16_e0.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 56242a343b58fcab63222095f27f2f143208822ccdb75f49250184d112358ec8 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 03:59:59,606 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:59:59,608 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:59:59,635 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:59:59,635 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:59:59,637 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:59:59,638 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:59:59,640 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:59:59,642 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:59:59,643 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:59:59,644 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:59:59,645 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:59:59,645 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:59:59,647 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:59:59,648 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:59:59,649 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:59:59,650 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:59:59,651 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:59:59,652 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:59:59,654 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:59:59,656 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:59:59,660 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:59:59,661 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:59:59,662 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:59:59,665 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:59:59,666 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:59:59,666 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:59:59,667 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:59:59,667 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:59:59,668 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:59:59,669 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:59:59,669 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:59:59,670 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:59:59,671 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:59:59,672 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:59:59,672 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:59:59,673 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:59:59,673 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:59:59,673 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:59:59,674 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:59:59,682 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:59:59,684 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 03:59:59,729 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:59:59,729 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:59:59,730 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:59:59,730 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:59:59,734 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:59:59,735 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:59:59,735 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:59:59,735 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:59:59,735 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:59:59,735 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:59:59,736 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:59:59,737 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:59:59,737 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:59:59,737 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:59:59,737 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:59:59,738 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:59:59,738 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:59:59,738 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:59:59,739 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:59:59,739 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:59:59,739 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:59:59,746 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:59:59,747 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:59:59,749 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:59:59,749 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:59:59,749 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:59:59,750 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:59:59,750 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:59:59,750 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:59:59,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:59:59,750 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:59:59,751 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:59:59,751 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:59:59,751 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:59:59,751 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:59:59,751 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:59:59,752 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:59:59,752 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:59:59,752 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 56242a343b58fcab63222095f27f2f143208822ccdb75f49250184d112358ec8 [2022-11-03 04:00:00,034 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 04:00:00,063 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 04:00:00,065 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 04:00:00,067 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 04:00:00,068 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 04:00:00,069 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w8_d16_e0.c [2022-11-03 04:00:00,134 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/data/154f4a6f0/991d3a53e2c0421289fd533a2d8f5e95/FLAG009e63dee [2022-11-03 04:00:00,680 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 04:00:00,681 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w8_d16_e0.c [2022-11-03 04:00:00,694 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/data/154f4a6f0/991d3a53e2c0421289fd533a2d8f5e95/FLAG009e63dee [2022-11-03 04:00:00,968 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/data/154f4a6f0/991d3a53e2c0421289fd533a2d8f5e95 [2022-11-03 04:00:00,971 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 04:00:00,972 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 04:00:00,976 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 04:00:00,976 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 04:00:00,999 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 04:00:01,000 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:00:00" (1/1) ... [2022-11-03 04:00:01,003 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26bc38ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:00:01, skipping insertion in model container [2022-11-03 04:00:01,004 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:00:00" (1/1) ... [2022-11-03 04:00:01,011 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 04:00:01,086 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 04:00:01,278 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w8_d16_e0.c[1116,1129] [2022-11-03 04:00:01,586 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:00:01,592 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 04:00:01,605 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w8_d16_e0.c[1116,1129] [2022-11-03 04:00:01,724 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:00:01,737 INFO L208 MainTranslator]: Completed translation [2022-11-03 04:00:01,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:00:01 WrapperNode [2022-11-03 04:00:01,738 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 04:00:01,739 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 04:00:01,740 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 04:00:01,740 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 04:00:01,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:00:01" (1/1) ... [2022-11-03 04:00:01,777 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:00:01" (1/1) ... [2022-11-03 04:00:01,914 INFO L138 Inliner]: procedures = 11, calls = 6, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1142 [2022-11-03 04:00:01,923 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 04:00:01,924 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 04:00:01,924 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 04:00:01,924 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 04:00:01,935 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:00:01" (1/1) ... [2022-11-03 04:00:01,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:00:01" (1/1) ... [2022-11-03 04:00:01,962 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:00:01" (1/1) ... [2022-11-03 04:00:01,973 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:00:01" (1/1) ... [2022-11-03 04:00:02,061 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:00:01" (1/1) ... [2022-11-03 04:00:02,069 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:00:01" (1/1) ... [2022-11-03 04:00:02,076 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:00:01" (1/1) ... [2022-11-03 04:00:02,085 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:00:01" (1/1) ... [2022-11-03 04:00:02,105 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 04:00:02,106 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 04:00:02,106 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 04:00:02,106 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 04:00:02,108 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:00:01" (1/1) ... [2022-11-03 04:00:02,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:00:02,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:00:02,159 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 04:00:02,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 04:00:02,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 04:00:02,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 04:00:02,216 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 04:00:02,216 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 04:00:02,582 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 04:00:02,585 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 04:00:04,239 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 04:00:06,578 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 04:00:06,578 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 04:00:06,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:00:06 BoogieIcfgContainer [2022-11-03 04:00:06,581 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 04:00:06,585 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 04:00:06,585 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 04:00:06,590 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 04:00:06,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:00:00" (1/3) ... [2022-11-03 04:00:06,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@270d1699 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:00:06, skipping insertion in model container [2022-11-03 04:00:06,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:00:01" (2/3) ... [2022-11-03 04:00:06,592 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@270d1699 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:00:06, skipping insertion in model container [2022-11-03 04:00:06,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:00:06" (3/3) ... [2022-11-03 04:00:06,593 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.circular_pointer_top_w8_d16_e0.c [2022-11-03 04:00:06,616 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 04:00:06,616 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 04:00:06,677 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 04:00:06,686 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@47a9ea2b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 04:00:06,686 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 04:00:06,695 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 04:00:06,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-03 04:00:06,706 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:00:06,706 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:00:06,708 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:00:06,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:00:06,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1478196790, now seen corresponding path program 1 times [2022-11-03 04:00:06,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:00:06,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199931832] [2022-11-03 04:00:06,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:00:06,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:00:09,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:00:13,860 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-03 04:00:13,861 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:00:13,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199931832] [2022-11-03 04:00:13,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199931832] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:00:13,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:00:13,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:00:13,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280998732] [2022-11-03 04:00:13,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:00:13,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:00:13,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:00:13,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:00:13,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:00:13,912 INFO L87 Difference]: Start difference. First operand has 15 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:00:16,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 04:00:17,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:00:17,162 INFO L93 Difference]: Finished difference Result 37 states and 49 transitions. [2022-11-03 04:00:17,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 04:00:17,164 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 16 [2022-11-03 04:00:17,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:00:17,172 INFO L225 Difference]: With dead ends: 37 [2022-11-03 04:00:17,172 INFO L226 Difference]: Without dead ends: 23 [2022-11-03 04:00:17,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:00:17,179 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 3 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:00:17,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 30 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2022-11-03 04:00:17,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-03 04:00:17,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2022-11-03 04:00:17,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 04:00:17,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2022-11-03 04:00:17,224 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 16 [2022-11-03 04:00:17,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:00:17,226 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2022-11-03 04:00:17,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:00:17,226 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2022-11-03 04:00:17,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-03 04:00:17,228 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:00:17,229 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-03 04:00:17,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 04:00:17,230 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:00:17,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:00:17,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1208692764, now seen corresponding path program 1 times [2022-11-03 04:00:17,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:00:17,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885627962] [2022-11-03 04:00:17,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:00:17,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:00:52,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 04:00:52,414 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-03 04:01:26,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 04:01:27,125 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-03 04:01:27,125 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-03 04:01:27,128 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 04:01:27,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 04:01:27,135 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-03 04:01:27,139 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 04:01:27,312 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-03 04:01:27,313 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-03 04:01:27,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 04:01:27 BoogieIcfgContainer [2022-11-03 04:01:27,400 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 04:01:27,400 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 04:01:27,401 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 04:01:27,401 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 04:01:27,401 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:00:06" (3/4) ... [2022-11-03 04:01:27,405 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-03 04:01:27,405 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 04:01:27,406 INFO L158 Benchmark]: Toolchain (without parser) took 86433.67ms. Allocated memory was 104.9MB in the beginning and 1.6GB in the end (delta: 1.5GB). Free memory was 57.5MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 40.1MB. Max. memory is 16.1GB. [2022-11-03 04:01:27,406 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 104.9MB. Free memory is still 75.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 04:01:27,407 INFO L158 Benchmark]: CACSL2BoogieTranslator took 763.02ms. Allocated memory is still 104.9MB. Free memory was 57.3MB in the beginning and 56.1MB in the end (delta: 1.2MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. [2022-11-03 04:01:27,408 INFO L158 Benchmark]: Boogie Procedure Inliner took 183.69ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 56.1MB in the beginning and 91.7MB in the end (delta: -35.5MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. [2022-11-03 04:01:27,408 INFO L158 Benchmark]: Boogie Preprocessor took 181.52ms. Allocated memory is still 125.8MB. Free memory was 91.7MB in the beginning and 85.2MB in the end (delta: 6.5MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. [2022-11-03 04:01:27,409 INFO L158 Benchmark]: RCFGBuilder took 4475.71ms. Allocated memory was 125.8MB in the beginning and 446.7MB in the end (delta: 320.9MB). Free memory was 85.2MB in the beginning and 244.3MB in the end (delta: -159.1MB). Peak memory consumption was 163.5MB. Max. memory is 16.1GB. [2022-11-03 04:01:27,410 INFO L158 Benchmark]: TraceAbstraction took 80814.88ms. Allocated memory was 446.7MB in the beginning and 1.6GB in the end (delta: 1.1GB). Free memory was 243.2MB in the beginning and 1.5GB in the end (delta: -1.2GB). Peak memory consumption was 810.9MB. Max. memory is 16.1GB. [2022-11-03 04:01:27,411 INFO L158 Benchmark]: Witness Printer took 4.79ms. Allocated memory is still 1.6GB. Free memory is still 1.5GB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 04:01:27,414 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 104.9MB. Free memory is still 75.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 763.02ms. Allocated memory is still 104.9MB. Free memory was 57.3MB in the beginning and 56.1MB in the end (delta: 1.2MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 183.69ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 56.1MB in the beginning and 91.7MB in the end (delta: -35.5MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 181.52ms. Allocated memory is still 125.8MB. Free memory was 91.7MB in the beginning and 85.2MB in the end (delta: 6.5MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. * RCFGBuilder took 4475.71ms. Allocated memory was 125.8MB in the beginning and 446.7MB in the end (delta: 320.9MB). Free memory was 85.2MB in the beginning and 244.3MB in the end (delta: -159.1MB). Peak memory consumption was 163.5MB. Max. memory is 16.1GB. * TraceAbstraction took 80814.88ms. Allocated memory was 446.7MB in the beginning and 1.6GB in the end (delta: 1.1GB). Free memory was 243.2MB in the beginning and 1.5GB in the end (delta: -1.2GB). Peak memory consumption was 810.9MB. Max. memory is 16.1GB. * Witness Printer took 4.79ms. Allocated memory is still 1.6GB. Free memory is still 1.5GB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 388, overapproximation of bitwiseComplement at line 173, overapproximation of bitwiseAnd at line 176. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 8); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (8 - 1); [L31] const SORT_11 mask_SORT_11 = (SORT_11)-1 >> (sizeof(SORT_11) * 8 - 6); [L32] const SORT_11 msb_SORT_11 = (SORT_11)1 << (6 - 1); [L34] const SORT_13 mask_SORT_13 = (SORT_13)-1 >> (sizeof(SORT_13) * 8 - 5); [L35] const SORT_13 msb_SORT_13 = (SORT_13)1 << (5 - 1); [L37] const SORT_19 mask_SORT_19 = (SORT_19)-1 >> (sizeof(SORT_19) * 8 - 4); [L38] const SORT_19 msb_SORT_19 = (SORT_19)1 << (4 - 1); [L40] const SORT_60 mask_SORT_60 = (SORT_60)-1 >> (sizeof(SORT_60) * 8 - 3); [L41] const SORT_60 msb_SORT_60 = (SORT_60)1 << (3 - 1); [L43] const SORT_81 mask_SORT_81 = (SORT_81)-1 >> (sizeof(SORT_81) * 8 - 2); [L44] const SORT_81 msb_SORT_81 = (SORT_81)1 << (2 - 1); [L46] const SORT_13 var_15 = 16; [L47] const SORT_19 var_20 = 15; [L48] const SORT_19 var_25 = 14; [L49] const SORT_19 var_30 = 13; [L50] const SORT_19 var_35 = 12; [L51] const SORT_19 var_40 = 11; [L52] const SORT_19 var_45 = 10; [L53] const SORT_19 var_50 = 9; [L54] const SORT_19 var_55 = 8; [L55] const SORT_60 var_61 = 7; [L56] const SORT_60 var_66 = 6; [L57] const SORT_60 var_71 = 5; [L58] const SORT_60 var_76 = 4; [L59] const SORT_81 var_82 = 3; [L60] const SORT_81 var_87 = 2; [L61] const SORT_1 var_92 = 1; [L62] const SORT_13 var_105 = 17; [L63] const SORT_11 var_122 = 0; [L64] const SORT_1 var_152 = 0; [L65] const SORT_3 var_373 = 0; [L67] SORT_1 input_2; [L68] SORT_3 input_4; [L69] SORT_1 input_5; [L70] SORT_1 input_6; [L71] SORT_1 input_7; [L72] SORT_1 input_8; [L73] SORT_3 input_9; [L74] SORT_1 input_150; [L76] SORT_3 state_10 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L77] SORT_11 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_11; [L78] SORT_3 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L79] SORT_3 state_24 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L80] SORT_3 state_29 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L81] SORT_3 state_34 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L82] SORT_3 state_39 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L83] SORT_3 state_44 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L84] SORT_3 state_49 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L85] SORT_3 state_54 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L86] SORT_3 state_59 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L87] SORT_3 state_65 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L88] SORT_3 state_70 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L89] SORT_3 state_75 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L90] SORT_3 state_80 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L91] SORT_3 state_86 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L92] SORT_3 state_91 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L93] SORT_3 state_96 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L94] SORT_11 state_101 = __VERIFIER_nondet_uchar() & mask_SORT_11; [L95] SORT_1 state_109 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L96] SORT_1 state_110 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L97] SORT_11 state_113 = __VERIFIER_nondet_uchar() & mask_SORT_11; [L98] SORT_3 state_128 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L99] SORT_1 state_132 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L100] SORT_11 state_185 = __VERIFIER_nondet_uchar() & mask_SORT_11; [L102] SORT_1 init_133_arg_1 = var_92; [L103] state_132 = init_133_arg_1 VAL [init_133_arg_1=1, mask_SORT_1=1, mask_SORT_11=63, mask_SORT_13=31, mask_SORT_19=15, mask_SORT_3=255, mask_SORT_60=7, mask_SORT_81=3, msb_SORT_1=1, msb_SORT_11=32, msb_SORT_13=16, msb_SORT_19=8, msb_SORT_3=128, msb_SORT_60=4, msb_SORT_81=2, state_10=0, state_101=1, state_109=1, state_110=0, state_113=54, state_12=0, state_128=0, state_132=1, state_18=0, state_185=0, state_24=0, state_29=0, state_34=1, state_39=1, state_44=0, state_49=0, state_54=0, state_59=0, state_65=0, state_70=0, state_75=0, state_80=33, state_86=254, state_91=254, state_96=2, var_105=17, var_122=0, var_15=16, var_152=0, var_20=15, var_25=14, var_30=13, var_35=12, var_373=0, var_40=11, var_45=10, var_50=9, var_55=8, var_61=7, var_66=6, var_71=5, var_76=4, var_82=3, var_87=2, var_92=1] [L106] input_2 = __VERIFIER_nondet_uchar() [L107] input_4 = __VERIFIER_nondet_uchar() [L108] input_5 = __VERIFIER_nondet_uchar() [L109] input_6 = __VERIFIER_nondet_uchar() [L110] input_7 = __VERIFIER_nondet_uchar() [L111] input_7 = input_7 & mask_SORT_1 [L112] input_8 = __VERIFIER_nondet_uchar() [L113] input_9 = __VERIFIER_nondet_uchar() [L114] input_150 = __VERIFIER_nondet_uchar() [L116] SORT_1 var_134_arg_0 = input_7; [L117] SORT_1 var_134_arg_1 = state_132; [L118] SORT_1 var_134 = var_134_arg_0 == var_134_arg_1; [L119] SORT_1 var_135_arg_0 = var_92; [L120] SORT_1 var_135 = ~var_135_arg_0; [L121] SORT_1 var_136_arg_0 = var_134; [L122] SORT_1 var_136_arg_1 = var_135; [L123] SORT_1 var_136 = var_136_arg_0 | var_136_arg_1; [L124] var_136 = var_136 & mask_SORT_1 [L125] SORT_1 constr_137_arg_0 = var_136; VAL [constr_137_arg_0=1, init_133_arg_1=1, input_150=1, input_2=3, input_4=0, input_5=1, input_6=36, input_7=0, input_8=47, input_9=0, mask_SORT_1=1, mask_SORT_11=63, mask_SORT_13=31, mask_SORT_19=15, mask_SORT_3=255, mask_SORT_60=7, mask_SORT_81=3, msb_SORT_1=1, msb_SORT_11=32, msb_SORT_13=16, msb_SORT_19=8, msb_SORT_3=128, msb_SORT_60=4, msb_SORT_81=2, state_10=0, state_101=1, state_109=1, state_110=0, state_113=54, state_12=0, state_128=0, state_132=1, state_18=0, state_185=0, state_24=0, state_29=0, state_34=1, state_39=1, state_44=0, state_49=0, state_54=0, state_59=0, state_65=0, state_70=0, state_75=0, state_80=33, state_86=254, state_91=254, state_96=2, var_105=17, var_122=0, var_134=0, var_134_arg_0=0, var_134_arg_1=1, var_135=2, var_135_arg_0=1, var_136=1, var_136_arg_0=0, var_136_arg_1=2, var_15=16, var_152=0, var_20=15, var_25=14, var_30=13, var_35=12, var_373=0, var_40=11, var_45=10, var_50=9, var_55=8, var_61=7, var_66=6, var_71=5, var_76=4, var_82=3, var_87=2, var_92=1] [L126] CALL assume_abort_if_not(constr_137_arg_0) VAL [\old(cond)=1] [L21] COND FALSE !(!cond) [L126] RET assume_abort_if_not(constr_137_arg_0) VAL [constr_137_arg_0=1, init_133_arg_1=1, input_150=1, input_2=3, input_4=0, input_5=1, input_6=36, input_7=0, input_8=47, input_9=0, mask_SORT_1=1, mask_SORT_11=63, mask_SORT_13=31, mask_SORT_19=15, mask_SORT_3=255, mask_SORT_60=7, mask_SORT_81=3, msb_SORT_1=1, msb_SORT_11=32, msb_SORT_13=16, msb_SORT_19=8, msb_SORT_3=128, msb_SORT_60=4, msb_SORT_81=2, state_10=0, state_101=1, state_109=1, state_110=0, state_113=54, state_12=0, state_128=0, state_132=1, state_18=0, state_185=0, state_24=0, state_29=0, state_34=1, state_39=1, state_44=0, state_49=0, state_54=0, state_59=0, state_65=0, state_70=0, state_75=0, state_80=33, state_86=254, state_91=254, state_96=2, var_105=17, var_122=0, var_134=0, var_134_arg_0=0, var_134_arg_1=1, var_135=2, var_135_arg_0=1, var_136=1, var_136_arg_0=0, var_136_arg_1=2, var_15=16, var_152=0, var_20=15, var_25=14, var_30=13, var_35=12, var_373=0, var_40=11, var_45=10, var_50=9, var_55=8, var_61=7, var_66=6, var_71=5, var_76=4, var_82=3, var_87=2, var_92=1] [L127] SORT_13 var_106_arg_0 = var_105; [L128] var_106_arg_0 = var_106_arg_0 & mask_SORT_13 [L129] SORT_11 var_106 = var_106_arg_0; [L130] SORT_11 var_107_arg_0 = state_101; [L131] SORT_11 var_107_arg_1 = var_106; [L132] SORT_1 var_107 = var_107_arg_0 == var_107_arg_1; [L133] SORT_1 var_138_arg_0 = var_107; [L134] SORT_1 var_138 = ~var_138_arg_0; [L135] SORT_1 var_139_arg_0 = input_6; [L136] SORT_1 var_139 = ~var_139_arg_0; [L137] SORT_1 var_140_arg_0 = var_138; [L138] SORT_1 var_140_arg_1 = var_139; [L139] SORT_1 var_140 = var_140_arg_0 | var_140_arg_1; [L140] SORT_1 var_141_arg_0 = var_92; [L141] SORT_1 var_141 = ~var_141_arg_0; [L142] SORT_1 var_142_arg_0 = var_140; [L143] SORT_1 var_142_arg_1 = var_141; [L144] SORT_1 var_142 = var_142_arg_0 | var_142_arg_1; [L145] var_142 = var_142 & mask_SORT_1 [L146] SORT_1 constr_143_arg_0 = var_142; VAL [constr_137_arg_0=1, constr_143_arg_0=1, init_133_arg_1=1, input_150=1, input_2=3, input_4=0, input_5=1, input_6=36, input_7=0, input_8=47, input_9=0, mask_SORT_1=1, mask_SORT_11=63, mask_SORT_13=31, mask_SORT_19=15, mask_SORT_3=255, mask_SORT_60=7, mask_SORT_81=3, msb_SORT_1=1, msb_SORT_11=32, msb_SORT_13=16, msb_SORT_19=8, msb_SORT_3=128, msb_SORT_60=4, msb_SORT_81=2, state_10=0, state_101=1, state_109=1, state_110=0, state_113=54, state_12=0, state_128=0, state_132=1, state_18=0, state_185=0, state_24=0, state_29=0, state_34=1, state_39=1, state_44=0, state_49=0, state_54=0, state_59=0, state_65=0, state_70=0, state_75=0, state_80=33, state_86=254, state_91=254, state_96=2, var_105=17, var_106=1, var_106_arg_0=1, var_107=1, var_107_arg_0=1, var_107_arg_1=1, var_122=0, var_134=0, var_134_arg_0=0, var_134_arg_1=1, var_135=2, var_135_arg_0=1, var_136=1, var_136_arg_0=0, var_136_arg_1=2, var_138=1, var_138_arg_0=1, var_139=1, var_139_arg_0=36, var_140=1, var_140_arg_0=1, var_140_arg_1=1, var_141=255, var_141_arg_0=1, var_142=1, var_142_arg_0=1, var_142_arg_1=255, var_15=16, var_152=0, var_20=15, var_25=14, var_30=13, var_35=12, var_373=0, var_40=11, var_45=10, var_50=9, var_55=8, var_61=7, var_66=6, var_71=5, var_76=4, var_82=3, var_87=2, var_92=1] [L147] CALL assume_abort_if_not(constr_143_arg_0) VAL [\old(cond)=1] [L21] COND FALSE !(!cond) [L147] RET assume_abort_if_not(constr_143_arg_0) VAL [constr_137_arg_0=1, constr_143_arg_0=1, init_133_arg_1=1, input_150=1, input_2=3, input_4=0, input_5=1, input_6=36, input_7=0, input_8=47, input_9=0, mask_SORT_1=1, mask_SORT_11=63, mask_SORT_13=31, mask_SORT_19=15, mask_SORT_3=255, mask_SORT_60=7, mask_SORT_81=3, msb_SORT_1=1, msb_SORT_11=32, msb_SORT_13=16, msb_SORT_19=8, msb_SORT_3=128, msb_SORT_60=4, msb_SORT_81=2, state_10=0, state_101=1, state_109=1, state_110=0, state_113=54, state_12=0, state_128=0, state_132=1, state_18=0, state_185=0, state_24=0, state_29=0, state_34=1, state_39=1, state_44=0, state_49=0, state_54=0, state_59=0, state_65=0, state_70=0, state_75=0, state_80=33, state_86=254, state_91=254, state_96=2, var_105=17, var_106=1, var_106_arg_0=1, var_107=1, var_107_arg_0=1, var_107_arg_1=1, var_122=0, var_134=0, var_134_arg_0=0, var_134_arg_1=1, var_135=2, var_135_arg_0=1, var_136=1, var_136_arg_0=0, var_136_arg_1=2, var_138=1, var_138_arg_0=1, var_139=1, var_139_arg_0=36, var_140=1, var_140_arg_0=1, var_140_arg_1=1, var_141=255, var_141_arg_0=1, var_142=1, var_142_arg_0=1, var_142_arg_1=255, var_15=16, var_152=0, var_20=15, var_25=14, var_30=13, var_35=12, var_373=0, var_40=11, var_45=10, var_50=9, var_55=8, var_61=7, var_66=6, var_71=5, var_76=4, var_82=3, var_87=2, var_92=1] [L148] SORT_11 var_102_arg_0 = state_101; [L149] SORT_1 var_102 = var_102_arg_0 != 0; [L150] SORT_1 var_103_arg_0 = var_102; [L151] SORT_1 var_103 = ~var_103_arg_0; [L152] SORT_1 var_144_arg_0 = var_103; [L153] SORT_1 var_144 = ~var_144_arg_0; [L154] SORT_1 var_145_arg_0 = input_5; [L155] SORT_1 var_145 = ~var_145_arg_0; [L156] SORT_1 var_146_arg_0 = var_144; [L157] SORT_1 var_146_arg_1 = var_145; [L158] SORT_1 var_146 = var_146_arg_0 | var_146_arg_1; [L159] SORT_1 var_147_arg_0 = var_92; [L160] SORT_1 var_147 = ~var_147_arg_0; [L161] SORT_1 var_148_arg_0 = var_146; [L162] SORT_1 var_148_arg_1 = var_147; [L163] SORT_1 var_148 = var_148_arg_0 | var_148_arg_1; [L164] var_148 = var_148 & mask_SORT_1 [L165] SORT_1 constr_149_arg_0 = var_148; VAL [constr_137_arg_0=1, constr_143_arg_0=1, constr_149_arg_0=1, init_133_arg_1=1, input_150=1, input_2=3, input_4=0, input_5=1, input_6=36, input_7=0, input_8=47, input_9=0, mask_SORT_1=1, mask_SORT_11=63, mask_SORT_13=31, mask_SORT_19=15, mask_SORT_3=255, mask_SORT_60=7, mask_SORT_81=3, msb_SORT_1=1, msb_SORT_11=32, msb_SORT_13=16, msb_SORT_19=8, msb_SORT_3=128, msb_SORT_60=4, msb_SORT_81=2, state_10=0, state_101=1, state_109=1, state_110=0, state_113=54, state_12=0, state_128=0, state_132=1, state_18=0, state_185=0, state_24=0, state_29=0, state_34=1, state_39=1, state_44=0, state_49=0, state_54=0, state_59=0, state_65=0, state_70=0, state_75=0, state_80=33, state_86=254, state_91=254, state_96=2, var_102=1, var_102_arg_0=1, var_103=6, var_103_arg_0=1, var_105=17, var_106=1, var_106_arg_0=1, var_107=1, var_107_arg_0=1, var_107_arg_1=1, var_122=0, var_134=0, var_134_arg_0=0, var_134_arg_1=1, var_135=2, var_135_arg_0=1, var_136=1, var_136_arg_0=0, var_136_arg_1=2, var_138=1, var_138_arg_0=1, var_139=1, var_139_arg_0=36, var_140=1, var_140_arg_0=1, var_140_arg_1=1, var_141=255, var_141_arg_0=1, var_142=1, var_142_arg_0=1, var_142_arg_1=255, var_144=2, var_144_arg_0=6, var_145=0, var_145_arg_0=1, var_146=0, var_146_arg_0=2, var_146_arg_1=0, var_147=1, var_147_arg_0=1, var_148=1, var_148_arg_0=0, var_148_arg_1=1, var_15=16, var_152=0, var_20=15, var_25=14, var_30=13, var_35=12, var_373=0, var_40=11, var_45=10, var_50=9, var_55=8, var_61=7, var_66=6, var_71=5, var_76=4, var_82=3, var_87=2, var_92=1] [L166] CALL assume_abort_if_not(constr_149_arg_0) VAL [\old(cond)=1] [L21] COND FALSE !(!cond) [L166] RET assume_abort_if_not(constr_149_arg_0) VAL [constr_137_arg_0=1, constr_143_arg_0=1, constr_149_arg_0=1, init_133_arg_1=1, input_150=1, input_2=3, input_4=0, input_5=1, input_6=36, input_7=0, input_8=47, input_9=0, mask_SORT_1=1, mask_SORT_11=63, mask_SORT_13=31, mask_SORT_19=15, mask_SORT_3=255, mask_SORT_60=7, mask_SORT_81=3, msb_SORT_1=1, msb_SORT_11=32, msb_SORT_13=16, msb_SORT_19=8, msb_SORT_3=128, msb_SORT_60=4, msb_SORT_81=2, state_10=0, state_101=1, state_109=1, state_110=0, state_113=54, state_12=0, state_128=0, state_132=1, state_18=0, state_185=0, state_24=0, state_29=0, state_34=1, state_39=1, state_44=0, state_49=0, state_54=0, state_59=0, state_65=0, state_70=0, state_75=0, state_80=33, state_86=254, state_91=254, state_96=2, var_102=1, var_102_arg_0=1, var_103=6, var_103_arg_0=1, var_105=17, var_106=1, var_106_arg_0=1, var_107=1, var_107_arg_0=1, var_107_arg_1=1, var_122=0, var_134=0, var_134_arg_0=0, var_134_arg_1=1, var_135=2, var_135_arg_0=1, var_136=1, var_136_arg_0=0, var_136_arg_1=2, var_138=1, var_138_arg_0=1, var_139=1, var_139_arg_0=36, var_140=1, var_140_arg_0=1, var_140_arg_1=1, var_141=255, var_141_arg_0=1, var_142=1, var_142_arg_0=1, var_142_arg_1=255, var_144=2, var_144_arg_0=6, var_145=0, var_145_arg_0=1, var_146=0, var_146_arg_0=2, var_146_arg_1=0, var_147=1, var_147_arg_0=1, var_148=1, var_148_arg_0=0, var_148_arg_1=1, var_15=16, var_152=0, var_20=15, var_25=14, var_30=13, var_35=12, var_373=0, var_40=11, var_45=10, var_50=9, var_55=8, var_61=7, var_66=6, var_71=5, var_76=4, var_82=3, var_87=2, var_92=1] [L168] SORT_1 var_153_arg_0 = state_132; [L169] SORT_1 var_153_arg_1 = var_152; [L170] SORT_1 var_153_arg_2 = var_92; [L171] EXPR var_153_arg_0 ? var_153_arg_1 : var_153_arg_2 [L171] SORT_1 var_153 = var_153_arg_0 ? var_153_arg_1 : var_153_arg_2; [L172] SORT_1 var_111_arg_0 = state_110; [L173] SORT_1 var_111 = ~var_111_arg_0; [L174] SORT_1 var_112_arg_0 = state_109; [L175] SORT_1 var_112_arg_1 = var_111; [L176] SORT_1 var_112 = var_112_arg_0 & var_112_arg_1; [L177] SORT_11 var_114_arg_0 = state_113; [L178] SORT_1 var_114 = var_114_arg_0 != 0; [L179] SORT_1 var_115_arg_0 = var_112; [L180] SORT_1 var_115_arg_1 = var_114; [L181] SORT_1 var_115 = var_115_arg_0 & var_115_arg_1; [L182] SORT_1 var_116_arg_0 = state_109; [L183] SORT_1 var_116 = ~var_116_arg_0; [L184] SORT_1 var_117_arg_0 = input_6; [L185] SORT_1 var_117_arg_1 = var_116; [L186] SORT_1 var_117 = var_117_arg_0 & var_117_arg_1; [L187] SORT_1 var_118_arg_0 = var_117; [L188] var_118_arg_0 = var_118_arg_0 & mask_SORT_1 [L189] SORT_11 var_118 = var_118_arg_0; [L190] SORT_11 var_119_arg_0 = state_113; [L191] SORT_11 var_119_arg_1 = var_118; [L192] SORT_11 var_119 = var_119_arg_0 + var_119_arg_1; [L193] SORT_1 var_120_arg_0 = input_5; [L194] var_120_arg_0 = var_120_arg_0 & mask_SORT_1 [L195] SORT_11 var_120 = var_120_arg_0; [L196] SORT_11 var_121_arg_0 = var_119; [L197] SORT_11 var_121_arg_1 = var_120; [L198] SORT_11 var_121 = var_121_arg_0 - var_121_arg_1; [L199] SORT_1 var_123_arg_0 = input_7; [L200] SORT_11 var_123_arg_1 = var_122; [L201] SORT_11 var_123_arg_2 = var_121; [L202] EXPR var_123_arg_0 ? var_123_arg_1 : var_123_arg_2 [L202] SORT_11 var_123 = var_123_arg_0 ? var_123_arg_1 : var_123_arg_2; [L203] var_123 = var_123 & mask_SORT_11 [L204] SORT_11 var_124_arg_0 = var_123; [L205] SORT_1 var_124 = var_124_arg_0 != 0; [L206] SORT_1 var_125_arg_0 = var_124; [L207] SORT_1 var_125 = ~var_125_arg_0; [L208] SORT_1 var_126_arg_0 = var_115; [L209] SORT_1 var_126_arg_1 = var_125; [L210] SORT_1 var_126 = var_126_arg_0 & var_126_arg_1; [L211] SORT_1 var_127_arg_0 = var_126; [L212] SORT_1 var_127 = ~var_127_arg_0; [L213] SORT_11 var_14_arg_0 = state_12; [L214] SORT_13 var_14 = var_14_arg_0 >> 0; [L215] var_14 = var_14 & mask_SORT_13 [L216] SORT_13 var_97_arg_0 = var_14; [L217] SORT_1 var_97 = var_97_arg_0 != 0; [L218] SORT_1 var_98_arg_0 = var_97; [L219] SORT_1 var_98 = ~var_98_arg_0; [L220] var_98 = var_98 & mask_SORT_1 [L221] SORT_1 var_93_arg_0 = var_92; [L222] var_93_arg_0 = var_93_arg_0 & mask_SORT_1 [L223] SORT_13 var_93 = var_93_arg_0; [L224] SORT_13 var_94_arg_0 = var_14; [L225] SORT_13 var_94_arg_1 = var_93; [L226] SORT_1 var_94 = var_94_arg_0 == var_94_arg_1; [L227] SORT_81 var_88_arg_0 = var_87; [L228] var_88_arg_0 = var_88_arg_0 & mask_SORT_81 [L229] SORT_13 var_88 = var_88_arg_0; [L230] SORT_13 var_89_arg_0 = var_14; [L231] SORT_13 var_89_arg_1 = var_88; [L232] SORT_1 var_89 = var_89_arg_0 == var_89_arg_1; [L233] SORT_81 var_83_arg_0 = var_82; [L234] var_83_arg_0 = var_83_arg_0 & mask_SORT_81 [L235] SORT_13 var_83 = var_83_arg_0; [L236] SORT_13 var_84_arg_0 = var_14; [L237] SORT_13 var_84_arg_1 = var_83; [L238] SORT_1 var_84 = var_84_arg_0 == var_84_arg_1; [L239] SORT_60 var_77_arg_0 = var_76; [L240] var_77_arg_0 = var_77_arg_0 & mask_SORT_60 [L241] SORT_13 var_77 = var_77_arg_0; [L242] SORT_13 var_78_arg_0 = var_14; [L243] SORT_13 var_78_arg_1 = var_77; [L244] SORT_1 var_78 = var_78_arg_0 == var_78_arg_1; [L245] SORT_60 var_72_arg_0 = var_71; [L246] var_72_arg_0 = var_72_arg_0 & mask_SORT_60 [L247] SORT_13 var_72 = var_72_arg_0; [L248] SORT_13 var_73_arg_0 = var_14; [L249] SORT_13 var_73_arg_1 = var_72; [L250] SORT_1 var_73 = var_73_arg_0 == var_73_arg_1; [L251] SORT_60 var_67_arg_0 = var_66; [L252] var_67_arg_0 = var_67_arg_0 & mask_SORT_60 [L253] SORT_13 var_67 = var_67_arg_0; [L254] SORT_13 var_68_arg_0 = var_14; [L255] SORT_13 var_68_arg_1 = var_67; [L256] SORT_1 var_68 = var_68_arg_0 == var_68_arg_1; [L257] SORT_60 var_62_arg_0 = var_61; [L258] var_62_arg_0 = var_62_arg_0 & mask_SORT_60 [L259] SORT_13 var_62 = var_62_arg_0; [L260] SORT_13 var_63_arg_0 = var_14; [L261] SORT_13 var_63_arg_1 = var_62; [L262] SORT_1 var_63 = var_63_arg_0 == var_63_arg_1; [L263] SORT_19 var_56_arg_0 = var_55; [L264] var_56_arg_0 = var_56_arg_0 & mask_SORT_19 [L265] SORT_13 var_56 = var_56_arg_0; [L266] SORT_13 var_57_arg_0 = var_14; [L267] SORT_13 var_57_arg_1 = var_56; [L268] SORT_1 var_57 = var_57_arg_0 == var_57_arg_1; [L269] SORT_19 var_51_arg_0 = var_50; [L270] var_51_arg_0 = var_51_arg_0 & mask_SORT_19 [L271] SORT_13 var_51 = var_51_arg_0; [L272] SORT_13 var_52_arg_0 = var_14; [L273] SORT_13 var_52_arg_1 = var_51; [L274] SORT_1 var_52 = var_52_arg_0 == var_52_arg_1; [L275] SORT_19 var_46_arg_0 = var_45; [L276] var_46_arg_0 = var_46_arg_0 & mask_SORT_19 [L277] SORT_13 var_46 = var_46_arg_0; [L278] SORT_13 var_47_arg_0 = var_14; [L279] SORT_13 var_47_arg_1 = var_46; [L280] SORT_1 var_47 = var_47_arg_0 == var_47_arg_1; [L281] SORT_19 var_41_arg_0 = var_40; [L282] var_41_arg_0 = var_41_arg_0 & mask_SORT_19 [L283] SORT_13 var_41 = var_41_arg_0; [L284] SORT_13 var_42_arg_0 = var_14; [L285] SORT_13 var_42_arg_1 = var_41; [L286] SORT_1 var_42 = var_42_arg_0 == var_42_arg_1; [L287] SORT_19 var_36_arg_0 = var_35; [L288] var_36_arg_0 = var_36_arg_0 & mask_SORT_19 [L289] SORT_13 var_36 = var_36_arg_0; [L290] SORT_13 var_37_arg_0 = var_14; [L291] SORT_13 var_37_arg_1 = var_36; [L292] SORT_1 var_37 = var_37_arg_0 == var_37_arg_1; [L293] SORT_19 var_31_arg_0 = var_30; [L294] var_31_arg_0 = var_31_arg_0 & mask_SORT_19 [L295] SORT_13 var_31 = var_31_arg_0; [L296] SORT_13 var_32_arg_0 = var_14; [L297] SORT_13 var_32_arg_1 = var_31; [L298] SORT_1 var_32 = var_32_arg_0 == var_32_arg_1; [L299] SORT_19 var_26_arg_0 = var_25; [L300] var_26_arg_0 = var_26_arg_0 & mask_SORT_19 [L301] SORT_13 var_26 = var_26_arg_0; [L302] SORT_13 var_27_arg_0 = var_14; [L303] SORT_13 var_27_arg_1 = var_26; [L304] SORT_1 var_27 = var_27_arg_0 == var_27_arg_1; [L305] SORT_19 var_21_arg_0 = var_20; [L306] var_21_arg_0 = var_21_arg_0 & mask_SORT_19 [L307] SORT_13 var_21 = var_21_arg_0; [L308] SORT_13 var_22_arg_0 = var_14; [L309] SORT_13 var_22_arg_1 = var_21; [L310] SORT_1 var_22 = var_22_arg_0 == var_22_arg_1; [L311] SORT_13 var_16_arg_0 = var_14; [L312] SORT_13 var_16_arg_1 = var_15; [L313] SORT_1 var_16 = var_16_arg_0 == var_16_arg_1; [L314] SORT_1 var_17_arg_0 = var_16; [L315] SORT_3 var_17_arg_1 = state_10; [L316] SORT_3 var_17_arg_2 = input_9; [L317] EXPR var_17_arg_0 ? var_17_arg_1 : var_17_arg_2 [L317] SORT_3 var_17 = var_17_arg_0 ? var_17_arg_1 : var_17_arg_2; [L318] SORT_1 var_23_arg_0 = var_22; [L319] SORT_3 var_23_arg_1 = state_18; [L320] SORT_3 var_23_arg_2 = var_17; [L321] EXPR var_23_arg_0 ? var_23_arg_1 : var_23_arg_2 [L321] SORT_3 var_23 = var_23_arg_0 ? var_23_arg_1 : var_23_arg_2; [L322] SORT_1 var_28_arg_0 = var_27; [L323] SORT_3 var_28_arg_1 = state_24; [L324] SORT_3 var_28_arg_2 = var_23; [L325] EXPR var_28_arg_0 ? var_28_arg_1 : var_28_arg_2 [L325] SORT_3 var_28 = var_28_arg_0 ? var_28_arg_1 : var_28_arg_2; [L326] SORT_1 var_33_arg_0 = var_32; [L327] SORT_3 var_33_arg_1 = state_29; [L328] SORT_3 var_33_arg_2 = var_28; [L329] EXPR var_33_arg_0 ? var_33_arg_1 : var_33_arg_2 [L329] SORT_3 var_33 = var_33_arg_0 ? var_33_arg_1 : var_33_arg_2; [L330] SORT_1 var_38_arg_0 = var_37; [L331] SORT_3 var_38_arg_1 = state_34; [L332] SORT_3 var_38_arg_2 = var_33; [L333] EXPR var_38_arg_0 ? var_38_arg_1 : var_38_arg_2 [L333] SORT_3 var_38 = var_38_arg_0 ? var_38_arg_1 : var_38_arg_2; [L334] SORT_1 var_43_arg_0 = var_42; [L335] SORT_3 var_43_arg_1 = state_39; [L336] SORT_3 var_43_arg_2 = var_38; [L337] EXPR var_43_arg_0 ? var_43_arg_1 : var_43_arg_2 [L337] SORT_3 var_43 = var_43_arg_0 ? var_43_arg_1 : var_43_arg_2; [L338] SORT_1 var_48_arg_0 = var_47; [L339] SORT_3 var_48_arg_1 = state_44; [L340] SORT_3 var_48_arg_2 = var_43; [L341] EXPR var_48_arg_0 ? var_48_arg_1 : var_48_arg_2 [L341] SORT_3 var_48 = var_48_arg_0 ? var_48_arg_1 : var_48_arg_2; [L342] SORT_1 var_53_arg_0 = var_52; [L343] SORT_3 var_53_arg_1 = state_49; [L344] SORT_3 var_53_arg_2 = var_48; [L345] EXPR var_53_arg_0 ? var_53_arg_1 : var_53_arg_2 [L345] SORT_3 var_53 = var_53_arg_0 ? var_53_arg_1 : var_53_arg_2; [L346] SORT_1 var_58_arg_0 = var_57; [L347] SORT_3 var_58_arg_1 = state_54; [L348] SORT_3 var_58_arg_2 = var_53; [L349] EXPR var_58_arg_0 ? var_58_arg_1 : var_58_arg_2 [L349] SORT_3 var_58 = var_58_arg_0 ? var_58_arg_1 : var_58_arg_2; [L350] SORT_1 var_64_arg_0 = var_63; [L351] SORT_3 var_64_arg_1 = state_59; [L352] SORT_3 var_64_arg_2 = var_58; [L353] EXPR var_64_arg_0 ? var_64_arg_1 : var_64_arg_2 [L353] SORT_3 var_64 = var_64_arg_0 ? var_64_arg_1 : var_64_arg_2; [L354] SORT_1 var_69_arg_0 = var_68; [L355] SORT_3 var_69_arg_1 = state_65; [L356] SORT_3 var_69_arg_2 = var_64; [L357] EXPR var_69_arg_0 ? var_69_arg_1 : var_69_arg_2 [L357] SORT_3 var_69 = var_69_arg_0 ? var_69_arg_1 : var_69_arg_2; [L358] SORT_1 var_74_arg_0 = var_73; [L359] SORT_3 var_74_arg_1 = state_70; [L360] SORT_3 var_74_arg_2 = var_69; [L361] EXPR var_74_arg_0 ? var_74_arg_1 : var_74_arg_2 [L361] SORT_3 var_74 = var_74_arg_0 ? var_74_arg_1 : var_74_arg_2; [L362] SORT_1 var_79_arg_0 = var_78; [L363] SORT_3 var_79_arg_1 = state_75; [L364] SORT_3 var_79_arg_2 = var_74; [L365] EXPR var_79_arg_0 ? var_79_arg_1 : var_79_arg_2 [L365] SORT_3 var_79 = var_79_arg_0 ? var_79_arg_1 : var_79_arg_2; [L366] SORT_1 var_85_arg_0 = var_84; [L367] SORT_3 var_85_arg_1 = state_80; [L368] SORT_3 var_85_arg_2 = var_79; [L369] EXPR var_85_arg_0 ? var_85_arg_1 : var_85_arg_2 [L369] SORT_3 var_85 = var_85_arg_0 ? var_85_arg_1 : var_85_arg_2; [L370] SORT_1 var_90_arg_0 = var_89; [L371] SORT_3 var_90_arg_1 = state_86; [L372] SORT_3 var_90_arg_2 = var_85; [L373] EXPR var_90_arg_0 ? var_90_arg_1 : var_90_arg_2 [L373] SORT_3 var_90 = var_90_arg_0 ? var_90_arg_1 : var_90_arg_2; [L374] SORT_1 var_95_arg_0 = var_94; [L375] SORT_3 var_95_arg_1 = state_91; [L376] SORT_3 var_95_arg_2 = var_90; [L377] EXPR var_95_arg_0 ? var_95_arg_1 : var_95_arg_2 [L377] SORT_3 var_95 = var_95_arg_0 ? var_95_arg_1 : var_95_arg_2; [L378] SORT_1 var_99_arg_0 = var_98; [L379] SORT_3 var_99_arg_1 = state_96; [L380] SORT_3 var_99_arg_2 = var_95; [L381] EXPR var_99_arg_0 ? var_99_arg_1 : var_99_arg_2 [L381] SORT_3 var_99 = var_99_arg_0 ? var_99_arg_1 : var_99_arg_2; [L382] var_99 = var_99 & mask_SORT_3 [L383] SORT_3 var_129_arg_0 = state_128; [L384] SORT_3 var_129_arg_1 = var_99; [L385] SORT_1 var_129 = var_129_arg_0 == var_129_arg_1; [L386] SORT_1 var_130_arg_0 = var_127; [L387] SORT_1 var_130_arg_1 = var_129; [L388] SORT_1 var_130 = var_130_arg_0 | var_130_arg_1; [L389] SORT_1 var_151_arg_0 = state_132; [L390] SORT_1 var_151_arg_1 = input_150; [L391] SORT_1 var_151_arg_2 = var_130; [L392] EXPR var_151_arg_0 ? var_151_arg_1 : var_151_arg_2 [L392] SORT_1 var_151 = var_151_arg_0 ? var_151_arg_1 : var_151_arg_2; [L393] SORT_1 var_154_arg_0 = var_151; [L394] SORT_1 var_154 = ~var_154_arg_0; [L395] SORT_1 var_155_arg_0 = var_153; [L396] SORT_1 var_155_arg_1 = var_154; [L397] SORT_1 var_155 = var_155_arg_0 & var_155_arg_1; [L398] var_155 = var_155 & mask_SORT_1 [L399] SORT_1 bad_156_arg_0 = var_155; [L400] CALL __VERIFIER_assert(!(bad_156_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L400] RET __VERIFIER_assert(!(bad_156_arg_0)) [L402] SORT_11 var_186_arg_0 = state_185; [L403] SORT_13 var_186 = var_186_arg_0 >> 0; [L404] var_186 = var_186 & mask_SORT_13 [L405] SORT_13 var_236_arg_0 = var_186; [L406] SORT_13 var_236_arg_1 = var_15; [L407] SORT_1 var_236 = var_236_arg_0 == var_236_arg_1; [L408] SORT_1 var_237_arg_0 = input_6; [L409] SORT_1 var_237_arg_1 = var_236; [L410] SORT_1 var_237 = var_237_arg_0 & var_237_arg_1; [L411] var_237 = var_237 & mask_SORT_1 [L412] SORT_1 var_372_arg_0 = var_237; [L413] SORT_3 var_372_arg_1 = input_4; [L414] SORT_3 var_372_arg_2 = state_10; [L415] EXPR var_372_arg_0 ? var_372_arg_1 : var_372_arg_2 [L415] SORT_3 var_372 = var_372_arg_0 ? var_372_arg_1 : var_372_arg_2; [L416] SORT_1 var_374_arg_0 = input_7; [L417] SORT_3 var_374_arg_1 = var_373; [L418] SORT_3 var_374_arg_2 = var_372; [L419] EXPR var_374_arg_0 ? var_374_arg_1 : var_374_arg_2 [L419] SORT_3 var_374 = var_374_arg_0 ? var_374_arg_1 : var_374_arg_2; [L420] SORT_3 next_375_arg_1 = var_374; [L421] SORT_1 var_160_arg_0 = input_6; [L422] SORT_1 var_160_arg_1 = input_5; [L423] SORT_1 var_160 = var_160_arg_0 | var_160_arg_1; [L424] SORT_1 var_161_arg_0 = var_160; [L425] SORT_1 var_161_arg_1 = input_7; [L426] SORT_1 var_161 = var_161_arg_0 | var_161_arg_1; [L427] var_161 = var_161 & mask_SORT_1 [L428] SORT_1 var_303_arg_0 = input_5; [L429] var_303_arg_0 = var_303_arg_0 & mask_SORT_1 [L430] SORT_11 var_303 = var_303_arg_0; [L431] SORT_11 var_304_arg_0 = state_12; [L432] SORT_11 var_304_arg_1 = var_303; [L433] SORT_11 var_304 = var_304_arg_0 + var_304_arg_1; [L434] SORT_1 var_376_arg_0 = var_161; [L435] SORT_11 var_376_arg_1 = var_304; [L436] SORT_11 var_376_arg_2 = state_12; [L437] EXPR var_376_arg_0 ? var_376_arg_1 : var_376_arg_2 [L437] SORT_11 var_376 = var_376_arg_0 ? var_376_arg_1 : var_376_arg_2; [L438] SORT_1 var_377_arg_0 = input_7; [L439] SORT_11 var_377_arg_1 = var_122; [L440] SORT_11 var_377_arg_2 = var_376; [L441] EXPR var_377_arg_0 ? var_377_arg_1 : var_377_arg_2 [L441] SORT_11 var_377 = var_377_arg_0 ? var_377_arg_1 : var_377_arg_2; [L442] SORT_11 next_378_arg_1 = var_377; [L443] SORT_19 var_229_arg_0 = var_20; [L444] var_229_arg_0 = var_229_arg_0 & mask_SORT_19 [L445] SORT_13 var_229 = var_229_arg_0; [L446] SORT_13 var_230_arg_0 = var_186; [L447] SORT_13 var_230_arg_1 = var_229; [L448] SORT_1 var_230 = var_230_arg_0 == var_230_arg_1; [L449] SORT_1 var_231_arg_0 = input_6; [L450] SORT_1 var_231_arg_1 = var_230; [L451] SORT_1 var_231 = var_231_arg_0 & var_231_arg_1; [L452] var_231 = var_231 & mask_SORT_1 [L453] SORT_1 var_379_arg_0 = var_231; [L454] SORT_3 var_379_arg_1 = input_4; [L455] SORT_3 var_379_arg_2 = state_18; [L456] EXPR var_379_arg_0 ? var_379_arg_1 : var_379_arg_2 [L456] SORT_3 var_379 = var_379_arg_0 ? var_379_arg_1 : var_379_arg_2; [L457] SORT_1 var_380_arg_0 = input_7; [L458] SORT_3 var_380_arg_1 = var_373; [L459] SORT_3 var_380_arg_2 = var_379; [L460] EXPR var_380_arg_0 ? var_380_arg_1 : var_380_arg_2 [L460] SORT_3 var_380 = var_380_arg_0 ? var_380_arg_1 : var_380_arg_2; [L461] SORT_3 next_381_arg_1 = var_380; [L462] SORT_19 var_222_arg_0 = var_25; [L463] var_222_arg_0 = var_222_arg_0 & mask_SORT_19 [L464] SORT_13 var_222 = var_222_arg_0; [L465] SORT_13 var_223_arg_0 = var_186; [L466] SORT_13 var_223_arg_1 = var_222; [L467] SORT_1 var_223 = var_223_arg_0 == var_223_arg_1; [L468] SORT_1 var_224_arg_0 = input_6; [L469] SORT_1 var_224_arg_1 = var_223; [L470] SORT_1 var_224 = var_224_arg_0 & var_224_arg_1; [L471] var_224 = var_224 & mask_SORT_1 [L472] SORT_1 var_382_arg_0 = var_224; [L473] SORT_3 var_382_arg_1 = input_4; [L474] SORT_3 var_382_arg_2 = state_24; [L475] EXPR var_382_arg_0 ? var_382_arg_1 : var_382_arg_2 [L475] SORT_3 var_382 = var_382_arg_0 ? var_382_arg_1 : var_382_arg_2; [L476] SORT_1 var_383_arg_0 = input_7; [L477] SORT_3 var_383_arg_1 = var_373; [L478] SORT_3 var_383_arg_2 = var_382; [L479] EXPR var_383_arg_0 ? var_383_arg_1 : var_383_arg_2 [L479] SORT_3 var_383 = var_383_arg_0 ? var_383_arg_1 : var_383_arg_2; [L480] SORT_3 next_384_arg_1 = var_383; [L481] SORT_19 var_215_arg_0 = var_30; [L482] var_215_arg_0 = var_215_arg_0 & mask_SORT_19 [L483] SORT_13 var_215 = var_215_arg_0; [L484] SORT_13 var_216_arg_0 = var_186; [L485] SORT_13 var_216_arg_1 = var_215; [L486] SORT_1 var_216 = var_216_arg_0 == var_216_arg_1; [L487] SORT_1 var_217_arg_0 = input_6; [L488] SORT_1 var_217_arg_1 = var_216; [L489] SORT_1 var_217 = var_217_arg_0 & var_217_arg_1; [L490] var_217 = var_217 & mask_SORT_1 [L491] SORT_1 var_385_arg_0 = var_217; [L492] SORT_3 var_385_arg_1 = input_4; [L493] SORT_3 var_385_arg_2 = state_29; [L494] EXPR var_385_arg_0 ? var_385_arg_1 : var_385_arg_2 [L494] SORT_3 var_385 = var_385_arg_0 ? var_385_arg_1 : var_385_arg_2; [L495] SORT_1 var_386_arg_0 = input_7; [L496] SORT_3 var_386_arg_1 = var_373; [L497] SORT_3 var_386_arg_2 = var_385; [L498] EXPR var_386_arg_0 ? var_386_arg_1 : var_386_arg_2 [L498] SORT_3 var_386 = var_386_arg_0 ? var_386_arg_1 : var_386_arg_2; [L499] SORT_3 next_387_arg_1 = var_386; [L500] SORT_19 var_208_arg_0 = var_35; [L501] var_208_arg_0 = var_208_arg_0 & mask_SORT_19 [L502] SORT_13 var_208 = var_208_arg_0; [L503] SORT_13 var_209_arg_0 = var_186; [L504] SORT_13 var_209_arg_1 = var_208; [L505] SORT_1 var_209 = var_209_arg_0 == var_209_arg_1; [L506] SORT_1 var_210_arg_0 = input_6; [L507] SORT_1 var_210_arg_1 = var_209; [L508] SORT_1 var_210 = var_210_arg_0 & var_210_arg_1; [L509] var_210 = var_210 & mask_SORT_1 [L510] SORT_1 var_388_arg_0 = var_210; [L511] SORT_3 var_388_arg_1 = input_4; [L512] SORT_3 var_388_arg_2 = state_34; [L513] EXPR var_388_arg_0 ? var_388_arg_1 : var_388_arg_2 [L513] SORT_3 var_388 = var_388_arg_0 ? var_388_arg_1 : var_388_arg_2; [L514] SORT_1 var_389_arg_0 = input_7; [L515] SORT_3 var_389_arg_1 = var_373; [L516] SORT_3 var_389_arg_2 = var_388; [L517] EXPR var_389_arg_0 ? var_389_arg_1 : var_389_arg_2 [L517] SORT_3 var_389 = var_389_arg_0 ? var_389_arg_1 : var_389_arg_2; [L518] SORT_3 next_390_arg_1 = var_389; [L519] SORT_19 var_201_arg_0 = var_40; [L520] var_201_arg_0 = var_201_arg_0 & mask_SORT_19 [L521] SORT_13 var_201 = var_201_arg_0; [L522] SORT_13 var_202_arg_0 = var_186; [L523] SORT_13 var_202_arg_1 = var_201; [L524] SORT_1 var_202 = var_202_arg_0 == var_202_arg_1; [L525] SORT_1 var_203_arg_0 = input_6; [L526] SORT_1 var_203_arg_1 = var_202; [L527] SORT_1 var_203 = var_203_arg_0 & var_203_arg_1; [L528] var_203 = var_203 & mask_SORT_1 [L529] SORT_1 var_391_arg_0 = var_203; [L530] SORT_3 var_391_arg_1 = input_4; [L531] SORT_3 var_391_arg_2 = state_39; [L532] EXPR var_391_arg_0 ? var_391_arg_1 : var_391_arg_2 [L532] SORT_3 var_391 = var_391_arg_0 ? var_391_arg_1 : var_391_arg_2; [L533] SORT_1 var_392_arg_0 = input_7; [L534] SORT_3 var_392_arg_1 = var_373; [L535] SORT_3 var_392_arg_2 = var_391; [L536] EXPR var_392_arg_0 ? var_392_arg_1 : var_392_arg_2 [L536] SORT_3 var_392 = var_392_arg_0 ? var_392_arg_1 : var_392_arg_2; [L537] SORT_3 next_393_arg_1 = var_392; [L538] SORT_19 var_194_arg_0 = var_45; [L539] var_194_arg_0 = var_194_arg_0 & mask_SORT_19 [L540] SORT_13 var_194 = var_194_arg_0; [L541] SORT_13 var_195_arg_0 = var_186; [L542] SORT_13 var_195_arg_1 = var_194; [L543] SORT_1 var_195 = var_195_arg_0 == var_195_arg_1; [L544] SORT_1 var_196_arg_0 = input_6; [L545] SORT_1 var_196_arg_1 = var_195; [L546] SORT_1 var_196 = var_196_arg_0 & var_196_arg_1; [L547] var_196 = var_196 & mask_SORT_1 [L548] SORT_1 var_394_arg_0 = var_196; [L549] SORT_3 var_394_arg_1 = input_4; [L550] SORT_3 var_394_arg_2 = state_44; [L551] EXPR var_394_arg_0 ? var_394_arg_1 : var_394_arg_2 [L551] SORT_3 var_394 = var_394_arg_0 ? var_394_arg_1 : var_394_arg_2; [L552] SORT_1 var_395_arg_0 = input_7; [L553] SORT_3 var_395_arg_1 = var_373; [L554] SORT_3 var_395_arg_2 = var_394; [L555] EXPR var_395_arg_0 ? var_395_arg_1 : var_395_arg_2 [L555] SORT_3 var_395 = var_395_arg_0 ? var_395_arg_1 : var_395_arg_2; [L556] SORT_3 next_396_arg_1 = var_395; [L557] SORT_19 var_298_arg_0 = var_50; [L558] var_298_arg_0 = var_298_arg_0 & mask_SORT_19 [L559] SORT_13 var_298 = var_298_arg_0; [L560] SORT_13 var_299_arg_0 = var_186; [L561] SORT_13 var_299_arg_1 = var_298; [L562] SORT_1 var_299 = var_299_arg_0 == var_299_arg_1; [L563] SORT_1 var_300_arg_0 = input_6; [L564] SORT_1 var_300_arg_1 = var_299; [L565] SORT_1 var_300 = var_300_arg_0 & var_300_arg_1; [L566] var_300 = var_300 & mask_SORT_1 [L567] SORT_1 var_397_arg_0 = var_300; [L568] SORT_3 var_397_arg_1 = input_4; [L569] SORT_3 var_397_arg_2 = state_49; [L570] EXPR var_397_arg_0 ? var_397_arg_1 : var_397_arg_2 [L570] SORT_3 var_397 = var_397_arg_0 ? var_397_arg_1 : var_397_arg_2; [L571] SORT_1 var_398_arg_0 = input_7; [L572] SORT_3 var_398_arg_1 = var_373; [L573] SORT_3 var_398_arg_2 = var_397; [L574] EXPR var_398_arg_0 ? var_398_arg_1 : var_398_arg_2 [L574] SORT_3 var_398 = var_398_arg_0 ? var_398_arg_1 : var_398_arg_2; [L575] SORT_3 next_399_arg_1 = var_398; [L576] SORT_19 var_291_arg_0 = var_55; [L577] var_291_arg_0 = var_291_arg_0 & mask_SORT_19 [L578] SORT_13 var_291 = var_291_arg_0; [L579] SORT_13 var_292_arg_0 = var_186; [L580] SORT_13 var_292_arg_1 = var_291; [L581] SORT_1 var_292 = var_292_arg_0 == var_292_arg_1; [L582] SORT_1 var_293_arg_0 = input_6; [L583] SORT_1 var_293_arg_1 = var_292; [L584] SORT_1 var_293 = var_293_arg_0 & var_293_arg_1; [L585] var_293 = var_293 & mask_SORT_1 [L586] SORT_1 var_400_arg_0 = var_293; [L587] SORT_3 var_400_arg_1 = input_4; [L588] SORT_3 var_400_arg_2 = state_54; [L589] EXPR var_400_arg_0 ? var_400_arg_1 : var_400_arg_2 [L589] SORT_3 var_400 = var_400_arg_0 ? var_400_arg_1 : var_400_arg_2; [L590] SORT_1 var_401_arg_0 = input_7; [L591] SORT_3 var_401_arg_1 = var_373; [L592] SORT_3 var_401_arg_2 = var_400; [L593] EXPR var_401_arg_0 ? var_401_arg_1 : var_401_arg_2 [L593] SORT_3 var_401 = var_401_arg_0 ? var_401_arg_1 : var_401_arg_2; [L594] SORT_3 next_402_arg_1 = var_401; [L595] SORT_60 var_284_arg_0 = var_61; [L596] var_284_arg_0 = var_284_arg_0 & mask_SORT_60 [L597] SORT_13 var_284 = var_284_arg_0; [L598] SORT_13 var_285_arg_0 = var_186; [L599] SORT_13 var_285_arg_1 = var_284; [L600] SORT_1 var_285 = var_285_arg_0 == var_285_arg_1; [L601] SORT_1 var_286_arg_0 = input_6; [L602] SORT_1 var_286_arg_1 = var_285; [L603] SORT_1 var_286 = var_286_arg_0 & var_286_arg_1; [L604] var_286 = var_286 & mask_SORT_1 [L605] SORT_1 var_403_arg_0 = var_286; [L606] SORT_3 var_403_arg_1 = input_4; [L607] SORT_3 var_403_arg_2 = state_59; [L608] EXPR var_403_arg_0 ? var_403_arg_1 : var_403_arg_2 [L608] SORT_3 var_403 = var_403_arg_0 ? var_403_arg_1 : var_403_arg_2; [L609] SORT_1 var_404_arg_0 = input_7; [L610] SORT_3 var_404_arg_1 = var_373; [L611] SORT_3 var_404_arg_2 = var_403; [L612] EXPR var_404_arg_0 ? var_404_arg_1 : var_404_arg_2 [L612] SORT_3 var_404 = var_404_arg_0 ? var_404_arg_1 : var_404_arg_2; [L613] SORT_3 next_405_arg_1 = var_404; [L614] SORT_60 var_277_arg_0 = var_66; [L615] var_277_arg_0 = var_277_arg_0 & mask_SORT_60 [L616] SORT_13 var_277 = var_277_arg_0; [L617] SORT_13 var_278_arg_0 = var_186; [L618] SORT_13 var_278_arg_1 = var_277; [L619] SORT_1 var_278 = var_278_arg_0 == var_278_arg_1; [L620] SORT_1 var_279_arg_0 = input_6; [L621] SORT_1 var_279_arg_1 = var_278; [L622] SORT_1 var_279 = var_279_arg_0 & var_279_arg_1; [L623] var_279 = var_279 & mask_SORT_1 [L624] SORT_1 var_406_arg_0 = var_279; [L625] SORT_3 var_406_arg_1 = input_4; [L626] SORT_3 var_406_arg_2 = state_65; [L627] EXPR var_406_arg_0 ? var_406_arg_1 : var_406_arg_2 [L627] SORT_3 var_406 = var_406_arg_0 ? var_406_arg_1 : var_406_arg_2; [L628] SORT_1 var_407_arg_0 = input_7; [L629] SORT_3 var_407_arg_1 = var_373; [L630] SORT_3 var_407_arg_2 = var_406; [L631] EXPR var_407_arg_0 ? var_407_arg_1 : var_407_arg_2 [L631] SORT_3 var_407 = var_407_arg_0 ? var_407_arg_1 : var_407_arg_2; [L632] SORT_3 next_408_arg_1 = var_407; [L633] SORT_60 var_270_arg_0 = var_71; [L634] var_270_arg_0 = var_270_arg_0 & mask_SORT_60 [L635] SORT_13 var_270 = var_270_arg_0; [L636] SORT_13 var_271_arg_0 = var_186; [L637] SORT_13 var_271_arg_1 = var_270; [L638] SORT_1 var_271 = var_271_arg_0 == var_271_arg_1; [L639] SORT_1 var_272_arg_0 = input_6; [L640] SORT_1 var_272_arg_1 = var_271; [L641] SORT_1 var_272 = var_272_arg_0 & var_272_arg_1; [L642] var_272 = var_272 & mask_SORT_1 [L643] SORT_1 var_409_arg_0 = var_272; [L644] SORT_3 var_409_arg_1 = input_4; [L645] SORT_3 var_409_arg_2 = state_70; [L646] EXPR var_409_arg_0 ? var_409_arg_1 : var_409_arg_2 [L646] SORT_3 var_409 = var_409_arg_0 ? var_409_arg_1 : var_409_arg_2; [L647] SORT_1 var_410_arg_0 = input_7; [L648] SORT_3 var_410_arg_1 = var_373; [L649] SORT_3 var_410_arg_2 = var_409; [L650] EXPR var_410_arg_0 ? var_410_arg_1 : var_410_arg_2 [L650] SORT_3 var_410 = var_410_arg_0 ? var_410_arg_1 : var_410_arg_2; [L651] SORT_3 next_411_arg_1 = var_410; [L652] SORT_60 var_263_arg_0 = var_76; [L653] var_263_arg_0 = var_263_arg_0 & mask_SORT_60 [L654] SORT_13 var_263 = var_263_arg_0; [L655] SORT_13 var_264_arg_0 = var_186; [L656] SORT_13 var_264_arg_1 = var_263; [L657] SORT_1 var_264 = var_264_arg_0 == var_264_arg_1; [L658] SORT_1 var_265_arg_0 = input_6; [L659] SORT_1 var_265_arg_1 = var_264; [L660] SORT_1 var_265 = var_265_arg_0 & var_265_arg_1; [L661] var_265 = var_265 & mask_SORT_1 [L662] SORT_1 var_412_arg_0 = var_265; [L663] SORT_3 var_412_arg_1 = input_4; [L664] SORT_3 var_412_arg_2 = state_75; [L665] EXPR var_412_arg_0 ? var_412_arg_1 : var_412_arg_2 [L665] SORT_3 var_412 = var_412_arg_0 ? var_412_arg_1 : var_412_arg_2; [L666] SORT_1 var_413_arg_0 = input_7; [L667] SORT_3 var_413_arg_1 = var_373; [L668] SORT_3 var_413_arg_2 = var_412; [L669] EXPR var_413_arg_0 ? var_413_arg_1 : var_413_arg_2 [L669] SORT_3 var_413 = var_413_arg_0 ? var_413_arg_1 : var_413_arg_2; [L670] SORT_3 next_414_arg_1 = var_413; [L671] SORT_81 var_256_arg_0 = var_82; [L672] var_256_arg_0 = var_256_arg_0 & mask_SORT_81 [L673] SORT_13 var_256 = var_256_arg_0; [L674] SORT_13 var_257_arg_0 = var_186; [L675] SORT_13 var_257_arg_1 = var_256; [L676] SORT_1 var_257 = var_257_arg_0 == var_257_arg_1; [L677] SORT_1 var_258_arg_0 = input_6; [L678] SORT_1 var_258_arg_1 = var_257; [L679] SORT_1 var_258 = var_258_arg_0 & var_258_arg_1; [L680] var_258 = var_258 & mask_SORT_1 [L681] SORT_1 var_415_arg_0 = var_258; [L682] SORT_3 var_415_arg_1 = input_4; [L683] SORT_3 var_415_arg_2 = state_80; [L684] EXPR var_415_arg_0 ? var_415_arg_1 : var_415_arg_2 [L684] SORT_3 var_415 = var_415_arg_0 ? var_415_arg_1 : var_415_arg_2; [L685] SORT_1 var_416_arg_0 = input_7; [L686] SORT_3 var_416_arg_1 = var_373; [L687] SORT_3 var_416_arg_2 = var_415; [L688] EXPR var_416_arg_0 ? var_416_arg_1 : var_416_arg_2 [L688] SORT_3 var_416 = var_416_arg_0 ? var_416_arg_1 : var_416_arg_2; [L689] SORT_3 next_417_arg_1 = var_416; [L690] SORT_81 var_249_arg_0 = var_87; [L691] var_249_arg_0 = var_249_arg_0 & mask_SORT_81 [L692] SORT_13 var_249 = var_249_arg_0; [L693] SORT_13 var_250_arg_0 = var_186; [L694] SORT_13 var_250_arg_1 = var_249; [L695] SORT_1 var_250 = var_250_arg_0 == var_250_arg_1; [L696] SORT_1 var_251_arg_0 = input_6; [L697] SORT_1 var_251_arg_1 = var_250; [L698] SORT_1 var_251 = var_251_arg_0 & var_251_arg_1; [L699] var_251 = var_251 & mask_SORT_1 [L700] SORT_1 var_418_arg_0 = var_251; [L701] SORT_3 var_418_arg_1 = input_4; [L702] SORT_3 var_418_arg_2 = state_86; [L703] EXPR var_418_arg_0 ? var_418_arg_1 : var_418_arg_2 [L703] SORT_3 var_418 = var_418_arg_0 ? var_418_arg_1 : var_418_arg_2; [L704] SORT_1 var_419_arg_0 = input_7; [L705] SORT_3 var_419_arg_1 = var_373; [L706] SORT_3 var_419_arg_2 = var_418; [L707] EXPR var_419_arg_0 ? var_419_arg_1 : var_419_arg_2 [L707] SORT_3 var_419 = var_419_arg_0 ? var_419_arg_1 : var_419_arg_2; [L708] SORT_3 next_420_arg_1 = var_419; [L709] SORT_1 var_242_arg_0 = var_92; [L710] var_242_arg_0 = var_242_arg_0 & mask_SORT_1 [L711] SORT_13 var_242 = var_242_arg_0; [L712] SORT_13 var_243_arg_0 = var_186; [L713] SORT_13 var_243_arg_1 = var_242; [L714] SORT_1 var_243 = var_243_arg_0 == var_243_arg_1; [L715] SORT_1 var_244_arg_0 = input_6; [L716] SORT_1 var_244_arg_1 = var_243; [L717] SORT_1 var_244 = var_244_arg_0 & var_244_arg_1; [L718] var_244 = var_244 & mask_SORT_1 [L719] SORT_1 var_421_arg_0 = var_244; [L720] SORT_3 var_421_arg_1 = input_4; [L721] SORT_3 var_421_arg_2 = state_91; [L722] EXPR var_421_arg_0 ? var_421_arg_1 : var_421_arg_2 [L722] SORT_3 var_421 = var_421_arg_0 ? var_421_arg_1 : var_421_arg_2; [L723] SORT_1 var_422_arg_0 = input_7; [L724] SORT_3 var_422_arg_1 = var_373; [L725] SORT_3 var_422_arg_2 = var_421; [L726] EXPR var_422_arg_0 ? var_422_arg_1 : var_422_arg_2 [L726] SORT_3 var_422 = var_422_arg_0 ? var_422_arg_1 : var_422_arg_2; [L727] SORT_3 next_423_arg_1 = var_422; [L728] SORT_13 var_187_arg_0 = var_186; [L729] SORT_1 var_187 = var_187_arg_0 != 0; [L730] SORT_1 var_188_arg_0 = var_187; [L731] SORT_1 var_188 = ~var_188_arg_0; [L732] SORT_1 var_189_arg_0 = input_6; [L733] SORT_1 var_189_arg_1 = var_188; [L734] SORT_1 var_189 = var_189_arg_0 & var_189_arg_1; [L735] var_189 = var_189 & mask_SORT_1 [L736] SORT_1 var_424_arg_0 = var_189; [L737] SORT_3 var_424_arg_1 = input_4; [L738] SORT_3 var_424_arg_2 = state_96; [L739] EXPR var_424_arg_0 ? var_424_arg_1 : var_424_arg_2 [L739] SORT_3 var_424 = var_424_arg_0 ? var_424_arg_1 : var_424_arg_2; [L740] SORT_1 var_425_arg_0 = input_7; [L741] SORT_3 var_425_arg_1 = var_373; [L742] SORT_3 var_425_arg_2 = var_424; [L743] EXPR var_425_arg_0 ? var_425_arg_1 : var_425_arg_2 [L743] SORT_3 var_425 = var_425_arg_0 ? var_425_arg_1 : var_425_arg_2; [L744] SORT_3 next_426_arg_1 = var_425; [L745] SORT_1 var_427_arg_0 = input_6; [L746] var_427_arg_0 = var_427_arg_0 & mask_SORT_1 [L747] SORT_11 var_427 = var_427_arg_0; [L748] SORT_11 var_428_arg_0 = state_101; [L749] SORT_11 var_428_arg_1 = var_427; [L750] SORT_11 var_428 = var_428_arg_0 + var_428_arg_1; [L751] SORT_1 var_429_arg_0 = input_5; [L752] var_429_arg_0 = var_429_arg_0 & mask_SORT_1 [L753] SORT_11 var_429 = var_429_arg_0; [L754] SORT_11 var_430_arg_0 = var_428; [L755] SORT_11 var_430_arg_1 = var_429; [L756] SORT_11 var_430 = var_430_arg_0 - var_430_arg_1; [L757] SORT_1 var_431_arg_0 = input_7; [L758] SORT_11 var_431_arg_1 = var_122; [L759] SORT_11 var_431_arg_2 = var_430; [L760] EXPR var_431_arg_0 ? var_431_arg_1 : var_431_arg_2 [L760] SORT_11 var_431 = var_431_arg_0 ? var_431_arg_1 : var_431_arg_2; [L761] var_431 = var_431 & mask_SORT_11 [L762] SORT_11 next_432_arg_1 = var_431; [L763] SORT_1 var_333_arg_0 = state_109; [L764] SORT_1 var_333 = ~var_333_arg_0; [L765] var_333 = var_333 & mask_SORT_1 [L766] SORT_1 var_329_arg_0 = input_8; [L767] SORT_1 var_329_arg_1 = input_6; [L768] SORT_1 var_329 = var_329_arg_0 & var_329_arg_1; [L769] SORT_1 var_330_arg_0 = state_109; [L770] SORT_1 var_330_arg_1 = var_329; [L771] SORT_1 var_330 = var_330_arg_0 | var_330_arg_1; [L772] SORT_1 var_433_arg_0 = var_333; [L773] SORT_1 var_433_arg_1 = var_330; [L774] SORT_1 var_433_arg_2 = state_109; [L775] EXPR var_433_arg_0 ? var_433_arg_1 : var_433_arg_2 [L775] SORT_1 var_433 = var_433_arg_0 ? var_433_arg_1 : var_433_arg_2; [L776] SORT_1 var_434_arg_0 = input_7; [L777] SORT_1 var_434_arg_1 = var_152; [L778] SORT_1 var_434_arg_2 = var_433; [L779] EXPR var_434_arg_0 ? var_434_arg_1 : var_434_arg_2 [L779] SORT_1 var_434 = var_434_arg_0 ? var_434_arg_1 : var_434_arg_2; [L780] SORT_1 next_435_arg_1 = var_434; [L781] SORT_1 var_341_arg_0 = var_126; [L782] SORT_1 var_341_arg_1 = state_110; [L783] SORT_1 var_341 = var_341_arg_0 | var_341_arg_1; [L784] SORT_1 var_436_arg_0 = var_92; [L785] SORT_1 var_436_arg_1 = var_341; [L786] SORT_1 var_436_arg_2 = state_110; [L787] EXPR var_436_arg_0 ? var_436_arg_1 : var_436_arg_2 [L787] SORT_1 var_436 = var_436_arg_0 ? var_436_arg_1 : var_436_arg_2; [L788] SORT_1 var_437_arg_0 = input_7; [L789] SORT_1 var_437_arg_1 = var_152; [L790] SORT_1 var_437_arg_2 = var_436; [L791] EXPR var_437_arg_0 ? var_437_arg_1 : var_437_arg_2 [L791] SORT_1 var_437 = var_437_arg_0 ? var_437_arg_1 : var_437_arg_2; [L792] SORT_1 next_438_arg_1 = var_437; [L793] SORT_1 var_353_arg_0 = input_6; [L794] SORT_1 var_353_arg_1 = input_5; [L795] SORT_1 var_353 = var_353_arg_0 | var_353_arg_1; [L796] SORT_1 var_354_arg_0 = var_353; [L797] SORT_1 var_354_arg_1 = input_7; [L798] SORT_1 var_354 = var_354_arg_0 | var_354_arg_1; [L799] SORT_1 var_355_arg_0 = var_354; [L800] SORT_1 var_355_arg_1 = state_109; [L801] SORT_1 var_355 = var_355_arg_0 | var_355_arg_1; [L802] var_355 = var_355 & mask_SORT_1 [L803] SORT_1 var_439_arg_0 = var_355; [L804] SORT_11 var_439_arg_1 = var_123; [L805] SORT_11 var_439_arg_2 = state_113; [L806] EXPR var_439_arg_0 ? var_439_arg_1 : var_439_arg_2 [L806] SORT_11 var_439 = var_439_arg_0 ? var_439_arg_1 : var_439_arg_2; [L807] SORT_1 var_440_arg_0 = input_7; [L808] SORT_11 var_440_arg_1 = var_122; [L809] SORT_11 var_440_arg_2 = var_439; [L810] EXPR var_440_arg_0 ? var_440_arg_1 : var_440_arg_2 [L810] SORT_11 var_440 = var_440_arg_0 ? var_440_arg_1 : var_440_arg_2; [L811] var_440 = var_440 & mask_SORT_11 [L812] SORT_11 next_441_arg_1 = var_440; [L813] SORT_1 var_338_arg_0 = var_329; [L814] SORT_1 var_338_arg_1 = var_333; [L815] SORT_1 var_338 = var_338_arg_0 & var_338_arg_1; [L816] var_338 = var_338 & mask_SORT_1 [L817] SORT_1 var_442_arg_0 = var_338; [L818] SORT_3 var_442_arg_1 = input_4; [L819] SORT_3 var_442_arg_2 = state_128; [L820] EXPR var_442_arg_0 ? var_442_arg_1 : var_442_arg_2 [L820] SORT_3 var_442 = var_442_arg_0 ? var_442_arg_1 : var_442_arg_2; [L821] SORT_1 var_443_arg_0 = input_7; [L822] SORT_3 var_443_arg_1 = var_373; [L823] SORT_3 var_443_arg_2 = var_442; [L824] EXPR var_443_arg_0 ? var_443_arg_1 : var_443_arg_2 [L824] SORT_3 var_443 = var_443_arg_0 ? var_443_arg_1 : var_443_arg_2; [L825] var_443 = var_443 & mask_SORT_3 [L826] SORT_3 next_444_arg_1 = var_443; [L827] SORT_1 next_445_arg_1 = var_152; [L828] SORT_1 var_309_arg_0 = input_6; [L829] var_309_arg_0 = var_309_arg_0 & mask_SORT_1 [L830] SORT_11 var_309 = var_309_arg_0; [L831] SORT_11 var_310_arg_0 = state_185; [L832] SORT_11 var_310_arg_1 = var_309; [L833] SORT_11 var_310 = var_310_arg_0 + var_310_arg_1; [L834] SORT_1 var_446_arg_0 = var_161; [L835] SORT_11 var_446_arg_1 = var_310; [L836] SORT_11 var_446_arg_2 = state_185; [L837] EXPR var_446_arg_0 ? var_446_arg_1 : var_446_arg_2 [L837] SORT_11 var_446 = var_446_arg_0 ? var_446_arg_1 : var_446_arg_2; [L838] SORT_1 var_447_arg_0 = input_7; [L839] SORT_11 var_447_arg_1 = var_122; [L840] SORT_11 var_447_arg_2 = var_446; [L841] EXPR var_447_arg_0 ? var_447_arg_1 : var_447_arg_2 [L841] SORT_11 var_447 = var_447_arg_0 ? var_447_arg_1 : var_447_arg_2; [L842] SORT_11 next_448_arg_1 = var_447; [L844] state_10 = next_375_arg_1 [L845] state_12 = next_378_arg_1 [L846] state_18 = next_381_arg_1 [L847] state_24 = next_384_arg_1 [L848] state_29 = next_387_arg_1 [L849] state_34 = next_390_arg_1 [L850] state_39 = next_393_arg_1 [L851] state_44 = next_396_arg_1 [L852] state_49 = next_399_arg_1 [L853] state_54 = next_402_arg_1 [L854] state_59 = next_405_arg_1 [L855] state_65 = next_408_arg_1 [L856] state_70 = next_411_arg_1 [L857] state_75 = next_414_arg_1 [L858] state_80 = next_417_arg_1 [L859] state_86 = next_420_arg_1 [L860] state_91 = next_423_arg_1 [L861] state_96 = next_426_arg_1 [L862] state_101 = next_432_arg_1 [L863] state_109 = next_435_arg_1 [L864] state_110 = next_438_arg_1 [L865] state_113 = next_441_arg_1 [L866] state_128 = next_444_arg_1 [L867] state_132 = next_445_arg_1 [L868] state_185 = next_448_arg_1 VAL [bad_156_arg_0=0, constr_137_arg_0=1, constr_143_arg_0=1, constr_149_arg_0=1, init_133_arg_1=1, input_150=1, input_2=3, input_4=0, input_5=1, input_6=36, input_7=0, input_8=47, input_9=0, mask_SORT_1=1, mask_SORT_11=63, mask_SORT_13=31, mask_SORT_19=15, mask_SORT_3=255, mask_SORT_60=7, mask_SORT_81=3, msb_SORT_1=1, msb_SORT_11=32, msb_SORT_13=16, msb_SORT_19=8, msb_SORT_3=128, msb_SORT_60=4, msb_SORT_81=2, next_375_arg_1=0, next_378_arg_1=1, next_381_arg_1=0, next_384_arg_1=0, next_387_arg_1=0, next_390_arg_1=1, next_393_arg_1=1, next_396_arg_1=0, next_399_arg_1=0, next_402_arg_1=0, next_405_arg_1=0, next_408_arg_1=0, next_411_arg_1=0, next_414_arg_1=0, next_417_arg_1=33, next_420_arg_1=254, next_423_arg_1=254, next_426_arg_1=2, next_432_arg_1=0, next_435_arg_1=0, next_438_arg_1=1, next_441_arg_1=0, next_444_arg_1=0, next_445_arg_1=0, next_448_arg_1=0, state_10=0, state_101=0, state_109=0, state_110=1, state_113=0, state_12=1, state_128=0, state_132=0, state_18=0, state_185=0, state_24=0, state_29=0, state_34=1, state_39=1, state_44=0, state_49=0, state_54=0, state_59=0, state_65=0, state_70=0, state_75=0, state_80=33, state_86=254, state_91=254, state_96=2, var_102=1, var_102_arg_0=1, var_103=6, var_103_arg_0=1, var_105=17, var_106=1, var_106_arg_0=1, var_107=1, var_107_arg_0=1, var_107_arg_1=1, var_111=1, var_111_arg_0=0, var_112=1, var_112_arg_0=1, var_112_arg_1=1, var_114=1, var_114_arg_0=54, var_115=1, var_115_arg_0=1, var_115_arg_1=1, var_116=3, var_116_arg_0=1, var_117=0, var_117_arg_0=36, var_117_arg_1=3, var_118=0, var_118_arg_0=0, var_119=54, var_119_arg_0=54, var_119_arg_1=0, var_120=1, var_120_arg_0=1, var_121=53, var_121_arg_0=54, var_121_arg_1=1, var_122=0, var_123=0, var_123_arg_0=0, var_123_arg_1=0, var_123_arg_2=53, var_124=0, var_124_arg_0=0, var_125=1, var_125_arg_0=0, var_126=1, var_126_arg_0=1, var_126_arg_1=1, var_127=1, var_127_arg_0=1, var_129=1, var_129_arg_0=0, var_129_arg_1=0, var_130=1, var_130_arg_0=1, var_130_arg_1=1, var_134=0, var_134_arg_0=0, var_134_arg_1=1, var_135=2, var_135_arg_0=1, var_136=1, var_136_arg_0=0, var_136_arg_1=2, var_138=1, var_138_arg_0=1, var_139=1, var_139_arg_0=36, var_14=0, var_140=1, var_140_arg_0=1, var_140_arg_1=1, var_141=255, var_141_arg_0=1, var_142=1, var_142_arg_0=1, var_142_arg_1=255, var_144=2, var_144_arg_0=6, var_145=0, var_145_arg_0=1, var_146=0, var_146_arg_0=2, var_146_arg_1=0, var_147=1, var_147_arg_0=1, var_148=1, var_148_arg_0=0, var_148_arg_1=1, var_14_arg_0=0, var_15=16, var_151=1, var_151_arg_0=1, var_151_arg_1=1, var_151_arg_2=1, var_152=0, var_153=0, var_153_arg_0=1, var_153_arg_1=0, var_153_arg_2=1, var_154=2, var_154_arg_0=1, var_155=0, var_155_arg_0=0, var_155_arg_1=2, var_16=0, var_160=1, var_160_arg_0=36, var_160_arg_1=1, var_161=1, var_161_arg_0=1, var_161_arg_1=0, var_16_arg_0=0, var_16_arg_1=16, var_17=0, var_17_arg_0=0, var_17_arg_1=0, var_17_arg_2=0, var_186=0, var_186_arg_0=0, var_187=0, var_187_arg_0=0, var_188=36, var_188_arg_0=0, var_189=0, var_189_arg_0=36, var_189_arg_1=36, var_194=10, var_194_arg_0=10, var_195=0, var_195_arg_0=0, var_195_arg_1=10, var_196=0, var_196_arg_0=36, var_196_arg_1=0, var_20=15, var_201=0, var_201_arg_0=0, var_202=1, var_202_arg_0=0, var_202_arg_1=0, var_203=0, var_203_arg_0=36, var_203_arg_1=1, var_208=0, var_208_arg_0=0, var_209=1, var_209_arg_0=0, var_209_arg_1=0, var_21=0, var_210=0, var_210_arg_0=36, var_210_arg_1=1, var_215=0, var_215_arg_0=0, var_216=1, var_216_arg_0=0, var_216_arg_1=0, var_217=0, var_217_arg_0=36, var_217_arg_1=1, var_21_arg_0=0, var_22=1, var_222=0, var_222_arg_0=0, var_223=1, var_223_arg_0=0, var_223_arg_1=0, var_224=0, var_224_arg_0=36, var_224_arg_1=1, var_229=0, var_229_arg_0=0, var_22_arg_0=0, var_22_arg_1=0, var_23=0, var_230=1, var_230_arg_0=0, var_230_arg_1=0, var_231=0, var_231_arg_0=36, var_231_arg_1=1, var_236=0, var_236_arg_0=0, var_236_arg_1=16, var_237=0, var_237_arg_0=36, var_237_arg_1=0, var_23_arg_0=1, var_23_arg_1=0, var_23_arg_2=0, var_242=1, var_242_arg_0=1, var_243=0, var_243_arg_0=0, var_243_arg_1=1, var_244=0, var_244_arg_0=36, var_244_arg_1=0, var_249=255, var_249_arg_0=255, var_25=14, var_250=0, var_250_arg_0=0, var_250_arg_1=255, var_251=0, var_251_arg_0=36, var_251_arg_1=0, var_256=0, var_256_arg_0=0, var_257=1, var_257_arg_0=0, var_257_arg_1=0, var_258=0, var_258_arg_0=36, var_258_arg_1=1, var_26=0, var_263=0, var_263_arg_0=0, var_264=1, var_264_arg_0=0, var_264_arg_1=0, var_265=0, var_265_arg_0=36, var_265_arg_1=1, var_26_arg_0=0, var_27=1, var_270=0, var_270_arg_0=0, var_271=1, var_271_arg_0=0, var_271_arg_1=0, var_272=0, var_272_arg_0=36, var_272_arg_1=1, var_277=0, var_277_arg_0=0, var_278=1, var_278_arg_0=0, var_278_arg_1=0, var_279=0, var_279_arg_0=36, var_279_arg_1=1, var_27_arg_0=0, var_27_arg_1=0, var_28=0, var_284=0, var_284_arg_0=0, var_285=1, var_285_arg_0=0, var_285_arg_1=0, var_286=0, var_286_arg_0=36, var_286_arg_1=1, var_28_arg_0=1, var_28_arg_1=0, var_28_arg_2=0, var_291=255, var_291_arg_0=255, var_292=0, var_292_arg_0=0, var_292_arg_1=255, var_293=0, var_293_arg_0=36, var_293_arg_1=0, var_298=0, var_298_arg_0=0, var_299=1, var_299_arg_0=0, var_299_arg_1=0, var_30=13, var_300=0, var_300_arg_0=36, var_300_arg_1=1, var_303=1, var_303_arg_0=1, var_304=1, var_304_arg_0=0, var_304_arg_1=1, var_309=0, var_309_arg_0=0, var_31=0, var_310=0, var_310_arg_0=0, var_310_arg_1=0, var_31_arg_0=0, var_32=1, var_329=45, var_329_arg_0=47, var_329_arg_1=36, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_330=0, var_330_arg_0=1, var_330_arg_1=45, var_333=1, var_333_arg_0=1, var_338=1, var_338_arg_0=45, var_338_arg_1=1, var_33_arg_0=1, var_33_arg_1=0, var_33_arg_2=0, var_341=1, var_341_arg_0=1, var_341_arg_1=0, var_35=12, var_353=1, var_353_arg_0=36, var_353_arg_1=1, var_354=1, var_354_arg_0=1, var_354_arg_1=0, var_355=1, var_355_arg_0=1, var_355_arg_1=1, var_36=23, var_36_arg_0=23, var_37=0, var_372=0, var_372_arg_0=0, var_372_arg_1=0, var_372_arg_2=0, var_373=0, var_374=0, var_374_arg_0=0, var_374_arg_1=0, var_374_arg_2=0, var_376=1, var_376_arg_0=1, var_376_arg_1=1, var_376_arg_2=0, var_377=1, var_377_arg_0=0, var_377_arg_1=0, var_377_arg_2=1, var_379=0, var_379_arg_0=0, var_379_arg_1=0, var_379_arg_2=0, var_37_arg_0=0, var_37_arg_1=23, var_38=0, var_380=0, var_380_arg_0=0, var_380_arg_1=0, var_380_arg_2=0, var_382=0, var_382_arg_0=0, var_382_arg_1=0, var_382_arg_2=0, var_383=0, var_383_arg_0=0, var_383_arg_1=0, var_383_arg_2=0, var_385=0, var_385_arg_0=0, var_385_arg_1=0, var_385_arg_2=0, var_386=0, var_386_arg_0=0, var_386_arg_1=0, var_386_arg_2=0, var_388=1, var_388_arg_0=0, var_388_arg_1=0, var_388_arg_2=1, var_389=1, var_389_arg_0=0, var_389_arg_1=0, var_389_arg_2=1, var_38_arg_0=0, var_38_arg_1=1, var_38_arg_2=0, var_391=1, var_391_arg_0=0, var_391_arg_1=0, var_391_arg_2=1, var_392=1, var_392_arg_0=0, var_392_arg_1=0, var_392_arg_2=1, var_394=0, var_394_arg_0=0, var_394_arg_1=0, var_394_arg_2=0, var_395=0, var_395_arg_0=0, var_395_arg_1=0, var_395_arg_2=0, var_397=0, var_397_arg_0=0, var_397_arg_1=0, var_397_arg_2=0, var_398=0, var_398_arg_0=0, var_398_arg_1=0, var_398_arg_2=0, var_40=11, var_400=0, var_400_arg_0=0, var_400_arg_1=0, var_400_arg_2=0, var_401=0, var_401_arg_0=0, var_401_arg_1=0, var_401_arg_2=0, var_403=0, var_403_arg_0=0, var_403_arg_1=0, var_403_arg_2=0, var_404=0, var_404_arg_0=0, var_404_arg_1=0, var_404_arg_2=0, var_406=0, var_406_arg_0=0, var_406_arg_1=0, var_406_arg_2=0, var_407=0, var_407_arg_0=0, var_407_arg_1=0, var_407_arg_2=0, var_409=0, var_409_arg_0=0, var_409_arg_1=0, var_409_arg_2=0, var_41=250, var_410=0, var_410_arg_0=0, var_410_arg_1=0, var_410_arg_2=0, var_412=0, var_412_arg_0=0, var_412_arg_1=0, var_412_arg_2=0, var_413=0, var_413_arg_0=0, var_413_arg_1=0, var_413_arg_2=0, var_415=33, var_415_arg_0=0, var_415_arg_1=0, var_415_arg_2=33, var_416=33, var_416_arg_0=0, var_416_arg_1=0, var_416_arg_2=33, var_418=254, var_418_arg_0=0, var_418_arg_1=0, var_418_arg_2=254, var_419=254, var_419_arg_0=0, var_419_arg_1=0, var_419_arg_2=254, var_41_arg_0=250, var_42=0, var_421=254, var_421_arg_0=0, var_421_arg_1=0, var_421_arg_2=254, var_422=254, var_422_arg_0=0, var_422_arg_1=0, var_422_arg_2=254, var_424=2, var_424_arg_0=0, var_424_arg_1=0, var_424_arg_2=2, var_425=2, var_425_arg_0=0, var_425_arg_1=0, var_425_arg_2=2, var_427=0, var_427_arg_0=0, var_428=1, var_428_arg_0=1, var_428_arg_1=0, var_429=1, var_429_arg_0=1, var_42_arg_0=0, var_42_arg_1=250, var_43=0, var_430=0, var_430_arg_0=1, var_430_arg_1=1, var_431=0, var_431_arg_0=0, var_431_arg_1=0, var_431_arg_2=0, var_433=0, var_433_arg_0=1, var_433_arg_1=0, var_433_arg_2=1, var_434=0, var_434_arg_0=0, var_434_arg_1=0, var_434_arg_2=0, var_436=1, var_436_arg_0=1, var_436_arg_1=1, var_436_arg_2=0, var_437=1, var_437_arg_0=0, var_437_arg_1=0, var_437_arg_2=1, var_439=0, var_439_arg_0=1, var_439_arg_1=0, var_439_arg_2=54, var_43_arg_0=0, var_43_arg_1=1, var_43_arg_2=0, var_440=0, var_440_arg_0=0, var_440_arg_1=0, var_440_arg_2=0, var_442=0, var_442_arg_0=1, var_442_arg_1=0, var_442_arg_2=0, var_443=0, var_443_arg_0=0, var_443_arg_1=0, var_443_arg_2=0, var_446=0, var_446_arg_0=1, var_446_arg_1=0, var_446_arg_2=0, var_447=0, var_447_arg_0=0, var_447_arg_1=0, var_447_arg_2=0, var_45=10, var_46=0, var_46_arg_0=0, var_47=1, var_47_arg_0=0, var_47_arg_1=0, var_48=0, var_48_arg_0=1, var_48_arg_1=0, var_48_arg_2=0, var_50=9, var_51=0, var_51_arg_0=0, var_52=1, var_52_arg_0=0, var_52_arg_1=0, var_53=0, var_53_arg_0=1, var_53_arg_1=0, var_53_arg_2=0, var_55=8, var_56=247, var_56_arg_0=247, var_57=0, var_57_arg_0=0, var_57_arg_1=247, var_58=0, var_58_arg_0=0, var_58_arg_1=0, var_58_arg_2=0, var_61=7, var_62=0, var_62_arg_0=0, var_63=1, var_63_arg_0=0, var_63_arg_1=0, var_64=0, var_64_arg_0=1, var_64_arg_1=0, var_64_arg_2=0, var_66=6, var_67=0, var_67_arg_0=0, var_68=1, var_68_arg_0=0, var_68_arg_1=0, var_69=0, var_69_arg_0=1, var_69_arg_1=0, var_69_arg_2=0, var_71=5, var_72=0, var_72_arg_0=0, var_73=1, var_73_arg_0=0, var_73_arg_1=0, var_74=0, var_74_arg_0=1, var_74_arg_1=0, var_74_arg_2=0, var_76=4, var_77=24, var_77_arg_0=24, var_78=0, var_78_arg_0=0, var_78_arg_1=24, var_79=0, var_79_arg_0=0, var_79_arg_1=0, var_79_arg_2=0, var_82=3, var_83=3, var_83_arg_0=3, var_84=0, var_84_arg_0=0, var_84_arg_1=3, var_85=0, var_85_arg_0=0, var_85_arg_1=33, var_85_arg_2=0, var_87=2, var_88=0, var_88_arg_0=0, var_89=1, var_89_arg_0=0, var_89_arg_1=0, var_90=254, var_90_arg_0=1, var_90_arg_1=254, var_90_arg_2=0, var_92=1, var_93=1, var_93_arg_0=1, var_94=0, var_94_arg_0=0, var_94_arg_1=1, var_95=254, var_95_arg_0=0, var_95_arg_1=254, var_95_arg_2=254, var_97=0, var_97_arg_0=0, var_98=0, var_98_arg_0=0, var_99=0, var_99_arg_0=0, var_99_arg_1=2, var_99_arg_2=254] [L106] input_2 = __VERIFIER_nondet_uchar() [L107] input_4 = __VERIFIER_nondet_uchar() [L108] input_5 = __VERIFIER_nondet_uchar() [L109] input_6 = __VERIFIER_nondet_uchar() [L110] input_7 = __VERIFIER_nondet_uchar() [L111] input_7 = input_7 & mask_SORT_1 [L112] input_8 = __VERIFIER_nondet_uchar() [L113] input_9 = __VERIFIER_nondet_uchar() [L114] input_150 = __VERIFIER_nondet_uchar() [L116] SORT_1 var_134_arg_0 = input_7; [L117] SORT_1 var_134_arg_1 = state_132; [L118] SORT_1 var_134 = var_134_arg_0 == var_134_arg_1; [L119] SORT_1 var_135_arg_0 = var_92; [L120] SORT_1 var_135 = ~var_135_arg_0; [L121] SORT_1 var_136_arg_0 = var_134; [L122] SORT_1 var_136_arg_1 = var_135; [L123] SORT_1 var_136 = var_136_arg_0 | var_136_arg_1; [L124] var_136 = var_136 & mask_SORT_1 [L125] SORT_1 constr_137_arg_0 = var_136; VAL [bad_156_arg_0=0, constr_137_arg_0=1, constr_143_arg_0=1, constr_149_arg_0=1, init_133_arg_1=1, input_150=1, input_2=4, input_4=5, input_5=40, input_6=2, input_7=0, input_8=1, input_9=0, mask_SORT_1=1, mask_SORT_11=63, mask_SORT_13=31, mask_SORT_19=15, mask_SORT_3=255, mask_SORT_60=7, mask_SORT_81=3, msb_SORT_1=1, msb_SORT_11=32, msb_SORT_13=16, msb_SORT_19=8, msb_SORT_3=128, msb_SORT_60=4, msb_SORT_81=2, next_375_arg_1=0, next_378_arg_1=1, next_381_arg_1=0, next_384_arg_1=0, next_387_arg_1=0, next_390_arg_1=1, next_393_arg_1=1, next_396_arg_1=0, next_399_arg_1=0, next_402_arg_1=0, next_405_arg_1=0, next_408_arg_1=0, next_411_arg_1=0, next_414_arg_1=0, next_417_arg_1=33, next_420_arg_1=254, next_423_arg_1=254, next_426_arg_1=2, next_432_arg_1=0, next_435_arg_1=0, next_438_arg_1=1, next_441_arg_1=0, next_444_arg_1=0, next_445_arg_1=0, next_448_arg_1=0, state_10=0, state_101=0, state_109=0, state_110=1, state_113=0, state_12=1, state_128=0, state_132=0, state_18=0, state_185=0, state_24=0, state_29=0, state_34=1, state_39=1, state_44=0, state_49=0, state_54=0, state_59=0, state_65=0, state_70=0, state_75=0, state_80=33, state_86=254, state_91=254, state_96=2, var_102=1, var_102_arg_0=1, var_103=6, var_103_arg_0=1, var_105=17, var_106=1, var_106_arg_0=1, var_107=1, var_107_arg_0=1, var_107_arg_1=1, var_111=1, var_111_arg_0=0, var_112=1, var_112_arg_0=1, var_112_arg_1=1, var_114=1, var_114_arg_0=54, var_115=1, var_115_arg_0=1, var_115_arg_1=1, var_116=3, var_116_arg_0=1, var_117=0, var_117_arg_0=36, var_117_arg_1=3, var_118=0, var_118_arg_0=0, var_119=54, var_119_arg_0=54, var_119_arg_1=0, var_120=1, var_120_arg_0=1, var_121=53, var_121_arg_0=54, var_121_arg_1=1, var_122=0, var_123=0, var_123_arg_0=0, var_123_arg_1=0, var_123_arg_2=53, var_124=0, var_124_arg_0=0, var_125=1, var_125_arg_0=0, var_126=1, var_126_arg_0=1, var_126_arg_1=1, var_127=1, var_127_arg_0=1, var_129=1, var_129_arg_0=0, var_129_arg_1=0, var_130=1, var_130_arg_0=1, var_130_arg_1=1, var_134=1, var_134_arg_0=0, var_134_arg_1=0, var_135=2, var_135_arg_0=1, var_136=1, var_136_arg_0=1, var_136_arg_1=2, var_138=1, var_138_arg_0=1, var_139=1, var_139_arg_0=36, var_14=0, var_140=1, var_140_arg_0=1, var_140_arg_1=1, var_141=255, var_141_arg_0=1, var_142=1, var_142_arg_0=1, var_142_arg_1=255, var_144=2, var_144_arg_0=6, var_145=0, var_145_arg_0=1, var_146=0, var_146_arg_0=2, var_146_arg_1=0, var_147=1, var_147_arg_0=1, var_148=1, var_148_arg_0=0, var_148_arg_1=1, var_14_arg_0=0, var_15=16, var_151=1, var_151_arg_0=1, var_151_arg_1=1, var_151_arg_2=1, var_152=0, var_153=0, var_153_arg_0=1, var_153_arg_1=0, var_153_arg_2=1, var_154=2, var_154_arg_0=1, var_155=0, var_155_arg_0=0, var_155_arg_1=2, var_16=0, var_160=1, var_160_arg_0=36, var_160_arg_1=1, var_161=1, var_161_arg_0=1, var_161_arg_1=0, var_16_arg_0=0, var_16_arg_1=16, var_17=0, var_17_arg_0=0, var_17_arg_1=0, var_17_arg_2=0, var_186=0, var_186_arg_0=0, var_187=0, var_187_arg_0=0, var_188=36, var_188_arg_0=0, var_189=0, var_189_arg_0=36, var_189_arg_1=36, var_194=10, var_194_arg_0=10, var_195=0, var_195_arg_0=0, var_195_arg_1=10, var_196=0, var_196_arg_0=36, var_196_arg_1=0, var_20=15, var_201=0, var_201_arg_0=0, var_202=1, var_202_arg_0=0, var_202_arg_1=0, var_203=0, var_203_arg_0=36, var_203_arg_1=1, var_208=0, var_208_arg_0=0, var_209=1, var_209_arg_0=0, var_209_arg_1=0, var_21=0, var_210=0, var_210_arg_0=36, var_210_arg_1=1, var_215=0, var_215_arg_0=0, var_216=1, var_216_arg_0=0, var_216_arg_1=0, var_217=0, var_217_arg_0=36, var_217_arg_1=1, var_21_arg_0=0, var_22=1, var_222=0, var_222_arg_0=0, var_223=1, var_223_arg_0=0, var_223_arg_1=0, var_224=0, var_224_arg_0=36, var_224_arg_1=1, var_229=0, var_229_arg_0=0, var_22_arg_0=0, var_22_arg_1=0, var_23=0, var_230=1, var_230_arg_0=0, var_230_arg_1=0, var_231=0, var_231_arg_0=36, var_231_arg_1=1, var_236=0, var_236_arg_0=0, var_236_arg_1=16, var_237=0, var_237_arg_0=36, var_237_arg_1=0, var_23_arg_0=1, var_23_arg_1=0, var_23_arg_2=0, var_242=1, var_242_arg_0=1, var_243=0, var_243_arg_0=0, var_243_arg_1=1, var_244=0, var_244_arg_0=36, var_244_arg_1=0, var_249=255, var_249_arg_0=255, var_25=14, var_250=0, var_250_arg_0=0, var_250_arg_1=255, var_251=0, var_251_arg_0=36, var_251_arg_1=0, var_256=0, var_256_arg_0=0, var_257=1, var_257_arg_0=0, var_257_arg_1=0, var_258=0, var_258_arg_0=36, var_258_arg_1=1, var_26=0, var_263=0, var_263_arg_0=0, var_264=1, var_264_arg_0=0, var_264_arg_1=0, var_265=0, var_265_arg_0=36, var_265_arg_1=1, var_26_arg_0=0, var_27=1, var_270=0, var_270_arg_0=0, var_271=1, var_271_arg_0=0, var_271_arg_1=0, var_272=0, var_272_arg_0=36, var_272_arg_1=1, var_277=0, var_277_arg_0=0, var_278=1, var_278_arg_0=0, var_278_arg_1=0, var_279=0, var_279_arg_0=36, var_279_arg_1=1, var_27_arg_0=0, var_27_arg_1=0, var_28=0, var_284=0, var_284_arg_0=0, var_285=1, var_285_arg_0=0, var_285_arg_1=0, var_286=0, var_286_arg_0=36, var_286_arg_1=1, var_28_arg_0=1, var_28_arg_1=0, var_28_arg_2=0, var_291=255, var_291_arg_0=255, var_292=0, var_292_arg_0=0, var_292_arg_1=255, var_293=0, var_293_arg_0=36, var_293_arg_1=0, var_298=0, var_298_arg_0=0, var_299=1, var_299_arg_0=0, var_299_arg_1=0, var_30=13, var_300=0, var_300_arg_0=36, var_300_arg_1=1, var_303=1, var_303_arg_0=1, var_304=1, var_304_arg_0=0, var_304_arg_1=1, var_309=0, var_309_arg_0=0, var_31=0, var_310=0, var_310_arg_0=0, var_310_arg_1=0, var_31_arg_0=0, var_32=1, var_329=45, var_329_arg_0=47, var_329_arg_1=36, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_330=0, var_330_arg_0=1, var_330_arg_1=45, var_333=1, var_333_arg_0=1, var_338=1, var_338_arg_0=45, var_338_arg_1=1, var_33_arg_0=1, var_33_arg_1=0, var_33_arg_2=0, var_341=1, var_341_arg_0=1, var_341_arg_1=0, var_35=12, var_353=1, var_353_arg_0=36, var_353_arg_1=1, var_354=1, var_354_arg_0=1, var_354_arg_1=0, var_355=1, var_355_arg_0=1, var_355_arg_1=1, var_36=23, var_36_arg_0=23, var_37=0, var_372=0, var_372_arg_0=0, var_372_arg_1=0, var_372_arg_2=0, var_373=0, var_374=0, var_374_arg_0=0, var_374_arg_1=0, var_374_arg_2=0, var_376=1, var_376_arg_0=1, var_376_arg_1=1, var_376_arg_2=0, var_377=1, var_377_arg_0=0, var_377_arg_1=0, var_377_arg_2=1, var_379=0, var_379_arg_0=0, var_379_arg_1=0, var_379_arg_2=0, var_37_arg_0=0, var_37_arg_1=23, var_38=0, var_380=0, var_380_arg_0=0, var_380_arg_1=0, var_380_arg_2=0, var_382=0, var_382_arg_0=0, var_382_arg_1=0, var_382_arg_2=0, var_383=0, var_383_arg_0=0, var_383_arg_1=0, var_383_arg_2=0, var_385=0, var_385_arg_0=0, var_385_arg_1=0, var_385_arg_2=0, var_386=0, var_386_arg_0=0, var_386_arg_1=0, var_386_arg_2=0, var_388=1, var_388_arg_0=0, var_388_arg_1=0, var_388_arg_2=1, var_389=1, var_389_arg_0=0, var_389_arg_1=0, var_389_arg_2=1, var_38_arg_0=0, var_38_arg_1=1, var_38_arg_2=0, var_391=1, var_391_arg_0=0, var_391_arg_1=0, var_391_arg_2=1, var_392=1, var_392_arg_0=0, var_392_arg_1=0, var_392_arg_2=1, var_394=0, var_394_arg_0=0, var_394_arg_1=0, var_394_arg_2=0, var_395=0, var_395_arg_0=0, var_395_arg_1=0, var_395_arg_2=0, var_397=0, var_397_arg_0=0, var_397_arg_1=0, var_397_arg_2=0, var_398=0, var_398_arg_0=0, var_398_arg_1=0, var_398_arg_2=0, var_40=11, var_400=0, var_400_arg_0=0, var_400_arg_1=0, var_400_arg_2=0, var_401=0, var_401_arg_0=0, var_401_arg_1=0, var_401_arg_2=0, var_403=0, var_403_arg_0=0, var_403_arg_1=0, var_403_arg_2=0, var_404=0, var_404_arg_0=0, var_404_arg_1=0, var_404_arg_2=0, var_406=0, var_406_arg_0=0, var_406_arg_1=0, var_406_arg_2=0, var_407=0, var_407_arg_0=0, var_407_arg_1=0, var_407_arg_2=0, var_409=0, var_409_arg_0=0, var_409_arg_1=0, var_409_arg_2=0, var_41=250, var_410=0, var_410_arg_0=0, var_410_arg_1=0, var_410_arg_2=0, var_412=0, var_412_arg_0=0, var_412_arg_1=0, var_412_arg_2=0, var_413=0, var_413_arg_0=0, var_413_arg_1=0, var_413_arg_2=0, var_415=33, var_415_arg_0=0, var_415_arg_1=0, var_415_arg_2=33, var_416=33, var_416_arg_0=0, var_416_arg_1=0, var_416_arg_2=33, var_418=254, var_418_arg_0=0, var_418_arg_1=0, var_418_arg_2=254, var_419=254, var_419_arg_0=0, var_419_arg_1=0, var_419_arg_2=254, var_41_arg_0=250, var_42=0, var_421=254, var_421_arg_0=0, var_421_arg_1=0, var_421_arg_2=254, var_422=254, var_422_arg_0=0, var_422_arg_1=0, var_422_arg_2=254, var_424=2, var_424_arg_0=0, var_424_arg_1=0, var_424_arg_2=2, var_425=2, var_425_arg_0=0, var_425_arg_1=0, var_425_arg_2=2, var_427=0, var_427_arg_0=0, var_428=1, var_428_arg_0=1, var_428_arg_1=0, var_429=1, var_429_arg_0=1, var_42_arg_0=0, var_42_arg_1=250, var_43=0, var_430=0, var_430_arg_0=1, var_430_arg_1=1, var_431=0, var_431_arg_0=0, var_431_arg_1=0, var_431_arg_2=0, var_433=0, var_433_arg_0=1, var_433_arg_1=0, var_433_arg_2=1, var_434=0, var_434_arg_0=0, var_434_arg_1=0, var_434_arg_2=0, var_436=1, var_436_arg_0=1, var_436_arg_1=1, var_436_arg_2=0, var_437=1, var_437_arg_0=0, var_437_arg_1=0, var_437_arg_2=1, var_439=0, var_439_arg_0=1, var_439_arg_1=0, var_439_arg_2=54, var_43_arg_0=0, var_43_arg_1=1, var_43_arg_2=0, var_440=0, var_440_arg_0=0, var_440_arg_1=0, var_440_arg_2=0, var_442=0, var_442_arg_0=1, var_442_arg_1=0, var_442_arg_2=0, var_443=0, var_443_arg_0=0, var_443_arg_1=0, var_443_arg_2=0, var_446=0, var_446_arg_0=1, var_446_arg_1=0, var_446_arg_2=0, var_447=0, var_447_arg_0=0, var_447_arg_1=0, var_447_arg_2=0, var_45=10, var_46=0, var_46_arg_0=0, var_47=1, var_47_arg_0=0, var_47_arg_1=0, var_48=0, var_48_arg_0=1, var_48_arg_1=0, var_48_arg_2=0, var_50=9, var_51=0, var_51_arg_0=0, var_52=1, var_52_arg_0=0, var_52_arg_1=0, var_53=0, var_53_arg_0=1, var_53_arg_1=0, var_53_arg_2=0, var_55=8, var_56=247, var_56_arg_0=247, var_57=0, var_57_arg_0=0, var_57_arg_1=247, var_58=0, var_58_arg_0=0, var_58_arg_1=0, var_58_arg_2=0, var_61=7, var_62=0, var_62_arg_0=0, var_63=1, var_63_arg_0=0, var_63_arg_1=0, var_64=0, var_64_arg_0=1, var_64_arg_1=0, var_64_arg_2=0, var_66=6, var_67=0, var_67_arg_0=0, var_68=1, var_68_arg_0=0, var_68_arg_1=0, var_69=0, var_69_arg_0=1, var_69_arg_1=0, var_69_arg_2=0, var_71=5, var_72=0, var_72_arg_0=0, var_73=1, var_73_arg_0=0, var_73_arg_1=0, var_74=0, var_74_arg_0=1, var_74_arg_1=0, var_74_arg_2=0, var_76=4, var_77=24, var_77_arg_0=24, var_78=0, var_78_arg_0=0, var_78_arg_1=24, var_79=0, var_79_arg_0=0, var_79_arg_1=0, var_79_arg_2=0, var_82=3, var_83=3, var_83_arg_0=3, var_84=0, var_84_arg_0=0, var_84_arg_1=3, var_85=0, var_85_arg_0=0, var_85_arg_1=33, var_85_arg_2=0, var_87=2, var_88=0, var_88_arg_0=0, var_89=1, var_89_arg_0=0, var_89_arg_1=0, var_90=254, var_90_arg_0=1, var_90_arg_1=254, var_90_arg_2=0, var_92=1, var_93=1, var_93_arg_0=1, var_94=0, var_94_arg_0=0, var_94_arg_1=1, var_95=254, var_95_arg_0=0, var_95_arg_1=254, var_95_arg_2=254, var_97=0, var_97_arg_0=0, var_98=0, var_98_arg_0=0, var_99=0, var_99_arg_0=0, var_99_arg_1=2, var_99_arg_2=254] [L126] CALL assume_abort_if_not(constr_137_arg_0) VAL [\old(cond)=1] [L21] COND FALSE !(!cond) [L126] RET assume_abort_if_not(constr_137_arg_0) VAL [bad_156_arg_0=0, constr_137_arg_0=1, constr_143_arg_0=1, constr_149_arg_0=1, init_133_arg_1=1, input_150=1, input_2=4, input_4=5, input_5=40, input_6=2, input_7=0, input_8=1, input_9=0, mask_SORT_1=1, mask_SORT_11=63, mask_SORT_13=31, mask_SORT_19=15, mask_SORT_3=255, mask_SORT_60=7, mask_SORT_81=3, msb_SORT_1=1, msb_SORT_11=32, msb_SORT_13=16, msb_SORT_19=8, msb_SORT_3=128, msb_SORT_60=4, msb_SORT_81=2, next_375_arg_1=0, next_378_arg_1=1, next_381_arg_1=0, next_384_arg_1=0, next_387_arg_1=0, next_390_arg_1=1, next_393_arg_1=1, next_396_arg_1=0, next_399_arg_1=0, next_402_arg_1=0, next_405_arg_1=0, next_408_arg_1=0, next_411_arg_1=0, next_414_arg_1=0, next_417_arg_1=33, next_420_arg_1=254, next_423_arg_1=254, next_426_arg_1=2, next_432_arg_1=0, next_435_arg_1=0, next_438_arg_1=1, next_441_arg_1=0, next_444_arg_1=0, next_445_arg_1=0, next_448_arg_1=0, state_10=0, state_101=0, state_109=0, state_110=1, state_113=0, state_12=1, state_128=0, state_132=0, state_18=0, state_185=0, state_24=0, state_29=0, state_34=1, state_39=1, state_44=0, state_49=0, state_54=0, state_59=0, state_65=0, state_70=0, state_75=0, state_80=33, state_86=254, state_91=254, state_96=2, var_102=1, var_102_arg_0=1, var_103=6, var_103_arg_0=1, var_105=17, var_106=1, var_106_arg_0=1, var_107=1, var_107_arg_0=1, var_107_arg_1=1, var_111=1, var_111_arg_0=0, var_112=1, var_112_arg_0=1, var_112_arg_1=1, var_114=1, var_114_arg_0=54, var_115=1, var_115_arg_0=1, var_115_arg_1=1, var_116=3, var_116_arg_0=1, var_117=0, var_117_arg_0=36, var_117_arg_1=3, var_118=0, var_118_arg_0=0, var_119=54, var_119_arg_0=54, var_119_arg_1=0, var_120=1, var_120_arg_0=1, var_121=53, var_121_arg_0=54, var_121_arg_1=1, var_122=0, var_123=0, var_123_arg_0=0, var_123_arg_1=0, var_123_arg_2=53, var_124=0, var_124_arg_0=0, var_125=1, var_125_arg_0=0, var_126=1, var_126_arg_0=1, var_126_arg_1=1, var_127=1, var_127_arg_0=1, var_129=1, var_129_arg_0=0, var_129_arg_1=0, var_130=1, var_130_arg_0=1, var_130_arg_1=1, var_134=1, var_134_arg_0=0, var_134_arg_1=0, var_135=2, var_135_arg_0=1, var_136=1, var_136_arg_0=1, var_136_arg_1=2, var_138=1, var_138_arg_0=1, var_139=1, var_139_arg_0=36, var_14=0, var_140=1, var_140_arg_0=1, var_140_arg_1=1, var_141=255, var_141_arg_0=1, var_142=1, var_142_arg_0=1, var_142_arg_1=255, var_144=2, var_144_arg_0=6, var_145=0, var_145_arg_0=1, var_146=0, var_146_arg_0=2, var_146_arg_1=0, var_147=1, var_147_arg_0=1, var_148=1, var_148_arg_0=0, var_148_arg_1=1, var_14_arg_0=0, var_15=16, var_151=1, var_151_arg_0=1, var_151_arg_1=1, var_151_arg_2=1, var_152=0, var_153=0, var_153_arg_0=1, var_153_arg_1=0, var_153_arg_2=1, var_154=2, var_154_arg_0=1, var_155=0, var_155_arg_0=0, var_155_arg_1=2, var_16=0, var_160=1, var_160_arg_0=36, var_160_arg_1=1, var_161=1, var_161_arg_0=1, var_161_arg_1=0, var_16_arg_0=0, var_16_arg_1=16, var_17=0, var_17_arg_0=0, var_17_arg_1=0, var_17_arg_2=0, var_186=0, var_186_arg_0=0, var_187=0, var_187_arg_0=0, var_188=36, var_188_arg_0=0, var_189=0, var_189_arg_0=36, var_189_arg_1=36, var_194=10, var_194_arg_0=10, var_195=0, var_195_arg_0=0, var_195_arg_1=10, var_196=0, var_196_arg_0=36, var_196_arg_1=0, var_20=15, var_201=0, var_201_arg_0=0, var_202=1, var_202_arg_0=0, var_202_arg_1=0, var_203=0, var_203_arg_0=36, var_203_arg_1=1, var_208=0, var_208_arg_0=0, var_209=1, var_209_arg_0=0, var_209_arg_1=0, var_21=0, var_210=0, var_210_arg_0=36, var_210_arg_1=1, var_215=0, var_215_arg_0=0, var_216=1, var_216_arg_0=0, var_216_arg_1=0, var_217=0, var_217_arg_0=36, var_217_arg_1=1, var_21_arg_0=0, var_22=1, var_222=0, var_222_arg_0=0, var_223=1, var_223_arg_0=0, var_223_arg_1=0, var_224=0, var_224_arg_0=36, var_224_arg_1=1, var_229=0, var_229_arg_0=0, var_22_arg_0=0, var_22_arg_1=0, var_23=0, var_230=1, var_230_arg_0=0, var_230_arg_1=0, var_231=0, var_231_arg_0=36, var_231_arg_1=1, var_236=0, var_236_arg_0=0, var_236_arg_1=16, var_237=0, var_237_arg_0=36, var_237_arg_1=0, var_23_arg_0=1, var_23_arg_1=0, var_23_arg_2=0, var_242=1, var_242_arg_0=1, var_243=0, var_243_arg_0=0, var_243_arg_1=1, var_244=0, var_244_arg_0=36, var_244_arg_1=0, var_249=255, var_249_arg_0=255, var_25=14, var_250=0, var_250_arg_0=0, var_250_arg_1=255, var_251=0, var_251_arg_0=36, var_251_arg_1=0, var_256=0, var_256_arg_0=0, var_257=1, var_257_arg_0=0, var_257_arg_1=0, var_258=0, var_258_arg_0=36, var_258_arg_1=1, var_26=0, var_263=0, var_263_arg_0=0, var_264=1, var_264_arg_0=0, var_264_arg_1=0, var_265=0, var_265_arg_0=36, var_265_arg_1=1, var_26_arg_0=0, var_27=1, var_270=0, var_270_arg_0=0, var_271=1, var_271_arg_0=0, var_271_arg_1=0, var_272=0, var_272_arg_0=36, var_272_arg_1=1, var_277=0, var_277_arg_0=0, var_278=1, var_278_arg_0=0, var_278_arg_1=0, var_279=0, var_279_arg_0=36, var_279_arg_1=1, var_27_arg_0=0, var_27_arg_1=0, var_28=0, var_284=0, var_284_arg_0=0, var_285=1, var_285_arg_0=0, var_285_arg_1=0, var_286=0, var_286_arg_0=36, var_286_arg_1=1, var_28_arg_0=1, var_28_arg_1=0, var_28_arg_2=0, var_291=255, var_291_arg_0=255, var_292=0, var_292_arg_0=0, var_292_arg_1=255, var_293=0, var_293_arg_0=36, var_293_arg_1=0, var_298=0, var_298_arg_0=0, var_299=1, var_299_arg_0=0, var_299_arg_1=0, var_30=13, var_300=0, var_300_arg_0=36, var_300_arg_1=1, var_303=1, var_303_arg_0=1, var_304=1, var_304_arg_0=0, var_304_arg_1=1, var_309=0, var_309_arg_0=0, var_31=0, var_310=0, var_310_arg_0=0, var_310_arg_1=0, var_31_arg_0=0, var_32=1, var_329=45, var_329_arg_0=47, var_329_arg_1=36, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_330=0, var_330_arg_0=1, var_330_arg_1=45, var_333=1, var_333_arg_0=1, var_338=1, var_338_arg_0=45, var_338_arg_1=1, var_33_arg_0=1, var_33_arg_1=0, var_33_arg_2=0, var_341=1, var_341_arg_0=1, var_341_arg_1=0, var_35=12, var_353=1, var_353_arg_0=36, var_353_arg_1=1, var_354=1, var_354_arg_0=1, var_354_arg_1=0, var_355=1, var_355_arg_0=1, var_355_arg_1=1, var_36=23, var_36_arg_0=23, var_37=0, var_372=0, var_372_arg_0=0, var_372_arg_1=0, var_372_arg_2=0, var_373=0, var_374=0, var_374_arg_0=0, var_374_arg_1=0, var_374_arg_2=0, var_376=1, var_376_arg_0=1, var_376_arg_1=1, var_376_arg_2=0, var_377=1, var_377_arg_0=0, var_377_arg_1=0, var_377_arg_2=1, var_379=0, var_379_arg_0=0, var_379_arg_1=0, var_379_arg_2=0, var_37_arg_0=0, var_37_arg_1=23, var_38=0, var_380=0, var_380_arg_0=0, var_380_arg_1=0, var_380_arg_2=0, var_382=0, var_382_arg_0=0, var_382_arg_1=0, var_382_arg_2=0, var_383=0, var_383_arg_0=0, var_383_arg_1=0, var_383_arg_2=0, var_385=0, var_385_arg_0=0, var_385_arg_1=0, var_385_arg_2=0, var_386=0, var_386_arg_0=0, var_386_arg_1=0, var_386_arg_2=0, var_388=1, var_388_arg_0=0, var_388_arg_1=0, var_388_arg_2=1, var_389=1, var_389_arg_0=0, var_389_arg_1=0, var_389_arg_2=1, var_38_arg_0=0, var_38_arg_1=1, var_38_arg_2=0, var_391=1, var_391_arg_0=0, var_391_arg_1=0, var_391_arg_2=1, var_392=1, var_392_arg_0=0, var_392_arg_1=0, var_392_arg_2=1, var_394=0, var_394_arg_0=0, var_394_arg_1=0, var_394_arg_2=0, var_395=0, var_395_arg_0=0, var_395_arg_1=0, var_395_arg_2=0, var_397=0, var_397_arg_0=0, var_397_arg_1=0, var_397_arg_2=0, var_398=0, var_398_arg_0=0, var_398_arg_1=0, var_398_arg_2=0, var_40=11, var_400=0, var_400_arg_0=0, var_400_arg_1=0, var_400_arg_2=0, var_401=0, var_401_arg_0=0, var_401_arg_1=0, var_401_arg_2=0, var_403=0, var_403_arg_0=0, var_403_arg_1=0, var_403_arg_2=0, var_404=0, var_404_arg_0=0, var_404_arg_1=0, var_404_arg_2=0, var_406=0, var_406_arg_0=0, var_406_arg_1=0, var_406_arg_2=0, var_407=0, var_407_arg_0=0, var_407_arg_1=0, var_407_arg_2=0, var_409=0, var_409_arg_0=0, var_409_arg_1=0, var_409_arg_2=0, var_41=250, var_410=0, var_410_arg_0=0, var_410_arg_1=0, var_410_arg_2=0, var_412=0, var_412_arg_0=0, var_412_arg_1=0, var_412_arg_2=0, var_413=0, var_413_arg_0=0, var_413_arg_1=0, var_413_arg_2=0, var_415=33, var_415_arg_0=0, var_415_arg_1=0, var_415_arg_2=33, var_416=33, var_416_arg_0=0, var_416_arg_1=0, var_416_arg_2=33, var_418=254, var_418_arg_0=0, var_418_arg_1=0, var_418_arg_2=254, var_419=254, var_419_arg_0=0, var_419_arg_1=0, var_419_arg_2=254, var_41_arg_0=250, var_42=0, var_421=254, var_421_arg_0=0, var_421_arg_1=0, var_421_arg_2=254, var_422=254, var_422_arg_0=0, var_422_arg_1=0, var_422_arg_2=254, var_424=2, var_424_arg_0=0, var_424_arg_1=0, var_424_arg_2=2, var_425=2, var_425_arg_0=0, var_425_arg_1=0, var_425_arg_2=2, var_427=0, var_427_arg_0=0, var_428=1, var_428_arg_0=1, var_428_arg_1=0, var_429=1, var_429_arg_0=1, var_42_arg_0=0, var_42_arg_1=250, var_43=0, var_430=0, var_430_arg_0=1, var_430_arg_1=1, var_431=0, var_431_arg_0=0, var_431_arg_1=0, var_431_arg_2=0, var_433=0, var_433_arg_0=1, var_433_arg_1=0, var_433_arg_2=1, var_434=0, var_434_arg_0=0, var_434_arg_1=0, var_434_arg_2=0, var_436=1, var_436_arg_0=1, var_436_arg_1=1, var_436_arg_2=0, var_437=1, var_437_arg_0=0, var_437_arg_1=0, var_437_arg_2=1, var_439=0, var_439_arg_0=1, var_439_arg_1=0, var_439_arg_2=54, var_43_arg_0=0, var_43_arg_1=1, var_43_arg_2=0, var_440=0, var_440_arg_0=0, var_440_arg_1=0, var_440_arg_2=0, var_442=0, var_442_arg_0=1, var_442_arg_1=0, var_442_arg_2=0, var_443=0, var_443_arg_0=0, var_443_arg_1=0, var_443_arg_2=0, var_446=0, var_446_arg_0=1, var_446_arg_1=0, var_446_arg_2=0, var_447=0, var_447_arg_0=0, var_447_arg_1=0, var_447_arg_2=0, var_45=10, var_46=0, var_46_arg_0=0, var_47=1, var_47_arg_0=0, var_47_arg_1=0, var_48=0, var_48_arg_0=1, var_48_arg_1=0, var_48_arg_2=0, var_50=9, var_51=0, var_51_arg_0=0, var_52=1, var_52_arg_0=0, var_52_arg_1=0, var_53=0, var_53_arg_0=1, var_53_arg_1=0, var_53_arg_2=0, var_55=8, var_56=247, var_56_arg_0=247, var_57=0, var_57_arg_0=0, var_57_arg_1=247, var_58=0, var_58_arg_0=0, var_58_arg_1=0, var_58_arg_2=0, var_61=7, var_62=0, var_62_arg_0=0, var_63=1, var_63_arg_0=0, var_63_arg_1=0, var_64=0, var_64_arg_0=1, var_64_arg_1=0, var_64_arg_2=0, var_66=6, var_67=0, var_67_arg_0=0, var_68=1, var_68_arg_0=0, var_68_arg_1=0, var_69=0, var_69_arg_0=1, var_69_arg_1=0, var_69_arg_2=0, var_71=5, var_72=0, var_72_arg_0=0, var_73=1, var_73_arg_0=0, var_73_arg_1=0, var_74=0, var_74_arg_0=1, var_74_arg_1=0, var_74_arg_2=0, var_76=4, var_77=24, var_77_arg_0=24, var_78=0, var_78_arg_0=0, var_78_arg_1=24, var_79=0, var_79_arg_0=0, var_79_arg_1=0, var_79_arg_2=0, var_82=3, var_83=3, var_83_arg_0=3, var_84=0, var_84_arg_0=0, var_84_arg_1=3, var_85=0, var_85_arg_0=0, var_85_arg_1=33, var_85_arg_2=0, var_87=2, var_88=0, var_88_arg_0=0, var_89=1, var_89_arg_0=0, var_89_arg_1=0, var_90=254, var_90_arg_0=1, var_90_arg_1=254, var_90_arg_2=0, var_92=1, var_93=1, var_93_arg_0=1, var_94=0, var_94_arg_0=0, var_94_arg_1=1, var_95=254, var_95_arg_0=0, var_95_arg_1=254, var_95_arg_2=254, var_97=0, var_97_arg_0=0, var_98=0, var_98_arg_0=0, var_99=0, var_99_arg_0=0, var_99_arg_1=2, var_99_arg_2=254] [L127] SORT_13 var_106_arg_0 = var_105; [L128] var_106_arg_0 = var_106_arg_0 & mask_SORT_13 [L129] SORT_11 var_106 = var_106_arg_0; [L130] SORT_11 var_107_arg_0 = state_101; [L131] SORT_11 var_107_arg_1 = var_106; [L132] SORT_1 var_107 = var_107_arg_0 == var_107_arg_1; [L133] SORT_1 var_138_arg_0 = var_107; [L134] SORT_1 var_138 = ~var_138_arg_0; [L135] SORT_1 var_139_arg_0 = input_6; [L136] SORT_1 var_139 = ~var_139_arg_0; [L137] SORT_1 var_140_arg_0 = var_138; [L138] SORT_1 var_140_arg_1 = var_139; [L139] SORT_1 var_140 = var_140_arg_0 | var_140_arg_1; [L140] SORT_1 var_141_arg_0 = var_92; [L141] SORT_1 var_141 = ~var_141_arg_0; [L142] SORT_1 var_142_arg_0 = var_140; [L143] SORT_1 var_142_arg_1 = var_141; [L144] SORT_1 var_142 = var_142_arg_0 | var_142_arg_1; [L145] var_142 = var_142 & mask_SORT_1 [L146] SORT_1 constr_143_arg_0 = var_142; VAL [bad_156_arg_0=0, constr_137_arg_0=1, constr_143_arg_0=1, constr_149_arg_0=1, init_133_arg_1=1, input_150=1, input_2=4, input_4=5, input_5=40, input_6=2, input_7=0, input_8=1, input_9=0, mask_SORT_1=1, mask_SORT_11=63, mask_SORT_13=31, mask_SORT_19=15, mask_SORT_3=255, mask_SORT_60=7, mask_SORT_81=3, msb_SORT_1=1, msb_SORT_11=32, msb_SORT_13=16, msb_SORT_19=8, msb_SORT_3=128, msb_SORT_60=4, msb_SORT_81=2, next_375_arg_1=0, next_378_arg_1=1, next_381_arg_1=0, next_384_arg_1=0, next_387_arg_1=0, next_390_arg_1=1, next_393_arg_1=1, next_396_arg_1=0, next_399_arg_1=0, next_402_arg_1=0, next_405_arg_1=0, next_408_arg_1=0, next_411_arg_1=0, next_414_arg_1=0, next_417_arg_1=33, next_420_arg_1=254, next_423_arg_1=254, next_426_arg_1=2, next_432_arg_1=0, next_435_arg_1=0, next_438_arg_1=1, next_441_arg_1=0, next_444_arg_1=0, next_445_arg_1=0, next_448_arg_1=0, state_10=0, state_101=0, state_109=0, state_110=1, state_113=0, state_12=1, state_128=0, state_132=0, state_18=0, state_185=0, state_24=0, state_29=0, state_34=1, state_39=1, state_44=0, state_49=0, state_54=0, state_59=0, state_65=0, state_70=0, state_75=0, state_80=33, state_86=254, state_91=254, state_96=2, var_102=1, var_102_arg_0=1, var_103=6, var_103_arg_0=1, var_105=17, var_106=31, var_106_arg_0=31, var_107=0, var_107_arg_0=0, var_107_arg_1=31, var_111=1, var_111_arg_0=0, var_112=1, var_112_arg_0=1, var_112_arg_1=1, var_114=1, var_114_arg_0=54, var_115=1, var_115_arg_0=1, var_115_arg_1=1, var_116=3, var_116_arg_0=1, var_117=0, var_117_arg_0=36, var_117_arg_1=3, var_118=0, var_118_arg_0=0, var_119=54, var_119_arg_0=54, var_119_arg_1=0, var_120=1, var_120_arg_0=1, var_121=53, var_121_arg_0=54, var_121_arg_1=1, var_122=0, var_123=0, var_123_arg_0=0, var_123_arg_1=0, var_123_arg_2=53, var_124=0, var_124_arg_0=0, var_125=1, var_125_arg_0=0, var_126=1, var_126_arg_0=1, var_126_arg_1=1, var_127=1, var_127_arg_0=1, var_129=1, var_129_arg_0=0, var_129_arg_1=0, var_130=1, var_130_arg_0=1, var_130_arg_1=1, var_134=1, var_134_arg_0=0, var_134_arg_1=0, var_135=2, var_135_arg_0=1, var_136=1, var_136_arg_0=1, var_136_arg_1=2, var_138=1, var_138_arg_0=0, var_139=32, var_139_arg_0=2, var_14=0, var_140=0, var_140_arg_0=1, var_140_arg_1=32, var_141=255, var_141_arg_0=1, var_142=1, var_142_arg_0=0, var_142_arg_1=255, var_144=2, var_144_arg_0=6, var_145=0, var_145_arg_0=1, var_146=0, var_146_arg_0=2, var_146_arg_1=0, var_147=1, var_147_arg_0=1, var_148=1, var_148_arg_0=0, var_148_arg_1=1, var_14_arg_0=0, var_15=16, var_151=1, var_151_arg_0=1, var_151_arg_1=1, var_151_arg_2=1, var_152=0, var_153=0, var_153_arg_0=1, var_153_arg_1=0, var_153_arg_2=1, var_154=2, var_154_arg_0=1, var_155=0, var_155_arg_0=0, var_155_arg_1=2, var_16=0, var_160=1, var_160_arg_0=36, var_160_arg_1=1, var_161=1, var_161_arg_0=1, var_161_arg_1=0, var_16_arg_0=0, var_16_arg_1=16, var_17=0, var_17_arg_0=0, var_17_arg_1=0, var_17_arg_2=0, var_186=0, var_186_arg_0=0, var_187=0, var_187_arg_0=0, var_188=36, var_188_arg_0=0, var_189=0, var_189_arg_0=36, var_189_arg_1=36, var_194=10, var_194_arg_0=10, var_195=0, var_195_arg_0=0, var_195_arg_1=10, var_196=0, var_196_arg_0=36, var_196_arg_1=0, var_20=15, var_201=0, var_201_arg_0=0, var_202=1, var_202_arg_0=0, var_202_arg_1=0, var_203=0, var_203_arg_0=36, var_203_arg_1=1, var_208=0, var_208_arg_0=0, var_209=1, var_209_arg_0=0, var_209_arg_1=0, var_21=0, var_210=0, var_210_arg_0=36, var_210_arg_1=1, var_215=0, var_215_arg_0=0, var_216=1, var_216_arg_0=0, var_216_arg_1=0, var_217=0, var_217_arg_0=36, var_217_arg_1=1, var_21_arg_0=0, var_22=1, var_222=0, var_222_arg_0=0, var_223=1, var_223_arg_0=0, var_223_arg_1=0, var_224=0, var_224_arg_0=36, var_224_arg_1=1, var_229=0, var_229_arg_0=0, var_22_arg_0=0, var_22_arg_1=0, var_23=0, var_230=1, var_230_arg_0=0, var_230_arg_1=0, var_231=0, var_231_arg_0=36, var_231_arg_1=1, var_236=0, var_236_arg_0=0, var_236_arg_1=16, var_237=0, var_237_arg_0=36, var_237_arg_1=0, var_23_arg_0=1, var_23_arg_1=0, var_23_arg_2=0, var_242=1, var_242_arg_0=1, var_243=0, var_243_arg_0=0, var_243_arg_1=1, var_244=0, var_244_arg_0=36, var_244_arg_1=0, var_249=255, var_249_arg_0=255, var_25=14, var_250=0, var_250_arg_0=0, var_250_arg_1=255, var_251=0, var_251_arg_0=36, var_251_arg_1=0, var_256=0, var_256_arg_0=0, var_257=1, var_257_arg_0=0, var_257_arg_1=0, var_258=0, var_258_arg_0=36, var_258_arg_1=1, var_26=0, var_263=0, var_263_arg_0=0, var_264=1, var_264_arg_0=0, var_264_arg_1=0, var_265=0, var_265_arg_0=36, var_265_arg_1=1, var_26_arg_0=0, var_27=1, var_270=0, var_270_arg_0=0, var_271=1, var_271_arg_0=0, var_271_arg_1=0, var_272=0, var_272_arg_0=36, var_272_arg_1=1, var_277=0, var_277_arg_0=0, var_278=1, var_278_arg_0=0, var_278_arg_1=0, var_279=0, var_279_arg_0=36, var_279_arg_1=1, var_27_arg_0=0, var_27_arg_1=0, var_28=0, var_284=0, var_284_arg_0=0, var_285=1, var_285_arg_0=0, var_285_arg_1=0, var_286=0, var_286_arg_0=36, var_286_arg_1=1, var_28_arg_0=1, var_28_arg_1=0, var_28_arg_2=0, var_291=255, var_291_arg_0=255, var_292=0, var_292_arg_0=0, var_292_arg_1=255, var_293=0, var_293_arg_0=36, var_293_arg_1=0, var_298=0, var_298_arg_0=0, var_299=1, var_299_arg_0=0, var_299_arg_1=0, var_30=13, var_300=0, var_300_arg_0=36, var_300_arg_1=1, var_303=1, var_303_arg_0=1, var_304=1, var_304_arg_0=0, var_304_arg_1=1, var_309=0, var_309_arg_0=0, var_31=0, var_310=0, var_310_arg_0=0, var_310_arg_1=0, var_31_arg_0=0, var_32=1, var_329=45, var_329_arg_0=47, var_329_arg_1=36, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_330=0, var_330_arg_0=1, var_330_arg_1=45, var_333=1, var_333_arg_0=1, var_338=1, var_338_arg_0=45, var_338_arg_1=1, var_33_arg_0=1, var_33_arg_1=0, var_33_arg_2=0, var_341=1, var_341_arg_0=1, var_341_arg_1=0, var_35=12, var_353=1, var_353_arg_0=36, var_353_arg_1=1, var_354=1, var_354_arg_0=1, var_354_arg_1=0, var_355=1, var_355_arg_0=1, var_355_arg_1=1, var_36=23, var_36_arg_0=23, var_37=0, var_372=0, var_372_arg_0=0, var_372_arg_1=0, var_372_arg_2=0, var_373=0, var_374=0, var_374_arg_0=0, var_374_arg_1=0, var_374_arg_2=0, var_376=1, var_376_arg_0=1, var_376_arg_1=1, var_376_arg_2=0, var_377=1, var_377_arg_0=0, var_377_arg_1=0, var_377_arg_2=1, var_379=0, var_379_arg_0=0, var_379_arg_1=0, var_379_arg_2=0, var_37_arg_0=0, var_37_arg_1=23, var_38=0, var_380=0, var_380_arg_0=0, var_380_arg_1=0, var_380_arg_2=0, var_382=0, var_382_arg_0=0, var_382_arg_1=0, var_382_arg_2=0, var_383=0, var_383_arg_0=0, var_383_arg_1=0, var_383_arg_2=0, var_385=0, var_385_arg_0=0, var_385_arg_1=0, var_385_arg_2=0, var_386=0, var_386_arg_0=0, var_386_arg_1=0, var_386_arg_2=0, var_388=1, var_388_arg_0=0, var_388_arg_1=0, var_388_arg_2=1, var_389=1, var_389_arg_0=0, var_389_arg_1=0, var_389_arg_2=1, var_38_arg_0=0, var_38_arg_1=1, var_38_arg_2=0, var_391=1, var_391_arg_0=0, var_391_arg_1=0, var_391_arg_2=1, var_392=1, var_392_arg_0=0, var_392_arg_1=0, var_392_arg_2=1, var_394=0, var_394_arg_0=0, var_394_arg_1=0, var_394_arg_2=0, var_395=0, var_395_arg_0=0, var_395_arg_1=0, var_395_arg_2=0, var_397=0, var_397_arg_0=0, var_397_arg_1=0, var_397_arg_2=0, var_398=0, var_398_arg_0=0, var_398_arg_1=0, var_398_arg_2=0, var_40=11, var_400=0, var_400_arg_0=0, var_400_arg_1=0, var_400_arg_2=0, var_401=0, var_401_arg_0=0, var_401_arg_1=0, var_401_arg_2=0, var_403=0, var_403_arg_0=0, var_403_arg_1=0, var_403_arg_2=0, var_404=0, var_404_arg_0=0, var_404_arg_1=0, var_404_arg_2=0, var_406=0, var_406_arg_0=0, var_406_arg_1=0, var_406_arg_2=0, var_407=0, var_407_arg_0=0, var_407_arg_1=0, var_407_arg_2=0, var_409=0, var_409_arg_0=0, var_409_arg_1=0, var_409_arg_2=0, var_41=250, var_410=0, var_410_arg_0=0, var_410_arg_1=0, var_410_arg_2=0, var_412=0, var_412_arg_0=0, var_412_arg_1=0, var_412_arg_2=0, var_413=0, var_413_arg_0=0, var_413_arg_1=0, var_413_arg_2=0, var_415=33, var_415_arg_0=0, var_415_arg_1=0, var_415_arg_2=33, var_416=33, var_416_arg_0=0, var_416_arg_1=0, var_416_arg_2=33, var_418=254, var_418_arg_0=0, var_418_arg_1=0, var_418_arg_2=254, var_419=254, var_419_arg_0=0, var_419_arg_1=0, var_419_arg_2=254, var_41_arg_0=250, var_42=0, var_421=254, var_421_arg_0=0, var_421_arg_1=0, var_421_arg_2=254, var_422=254, var_422_arg_0=0, var_422_arg_1=0, var_422_arg_2=254, var_424=2, var_424_arg_0=0, var_424_arg_1=0, var_424_arg_2=2, var_425=2, var_425_arg_0=0, var_425_arg_1=0, var_425_arg_2=2, var_427=0, var_427_arg_0=0, var_428=1, var_428_arg_0=1, var_428_arg_1=0, var_429=1, var_429_arg_0=1, var_42_arg_0=0, var_42_arg_1=250, var_43=0, var_430=0, var_430_arg_0=1, var_430_arg_1=1, var_431=0, var_431_arg_0=0, var_431_arg_1=0, var_431_arg_2=0, var_433=0, var_433_arg_0=1, var_433_arg_1=0, var_433_arg_2=1, var_434=0, var_434_arg_0=0, var_434_arg_1=0, var_434_arg_2=0, var_436=1, var_436_arg_0=1, var_436_arg_1=1, var_436_arg_2=0, var_437=1, var_437_arg_0=0, var_437_arg_1=0, var_437_arg_2=1, var_439=0, var_439_arg_0=1, var_439_arg_1=0, var_439_arg_2=54, var_43_arg_0=0, var_43_arg_1=1, var_43_arg_2=0, var_440=0, var_440_arg_0=0, var_440_arg_1=0, var_440_arg_2=0, var_442=0, var_442_arg_0=1, var_442_arg_1=0, var_442_arg_2=0, var_443=0, var_443_arg_0=0, var_443_arg_1=0, var_443_arg_2=0, var_446=0, var_446_arg_0=1, var_446_arg_1=0, var_446_arg_2=0, var_447=0, var_447_arg_0=0, var_447_arg_1=0, var_447_arg_2=0, var_45=10, var_46=0, var_46_arg_0=0, var_47=1, var_47_arg_0=0, var_47_arg_1=0, var_48=0, var_48_arg_0=1, var_48_arg_1=0, var_48_arg_2=0, var_50=9, var_51=0, var_51_arg_0=0, var_52=1, var_52_arg_0=0, var_52_arg_1=0, var_53=0, var_53_arg_0=1, var_53_arg_1=0, var_53_arg_2=0, var_55=8, var_56=247, var_56_arg_0=247, var_57=0, var_57_arg_0=0, var_57_arg_1=247, var_58=0, var_58_arg_0=0, var_58_arg_1=0, var_58_arg_2=0, var_61=7, var_62=0, var_62_arg_0=0, var_63=1, var_63_arg_0=0, var_63_arg_1=0, var_64=0, var_64_arg_0=1, var_64_arg_1=0, var_64_arg_2=0, var_66=6, var_67=0, var_67_arg_0=0, var_68=1, var_68_arg_0=0, var_68_arg_1=0, var_69=0, var_69_arg_0=1, var_69_arg_1=0, var_69_arg_2=0, var_71=5, var_72=0, var_72_arg_0=0, var_73=1, var_73_arg_0=0, var_73_arg_1=0, var_74=0, var_74_arg_0=1, var_74_arg_1=0, var_74_arg_2=0, var_76=4, var_77=24, var_77_arg_0=24, var_78=0, var_78_arg_0=0, var_78_arg_1=24, var_79=0, var_79_arg_0=0, var_79_arg_1=0, var_79_arg_2=0, var_82=3, var_83=3, var_83_arg_0=3, var_84=0, var_84_arg_0=0, var_84_arg_1=3, var_85=0, var_85_arg_0=0, var_85_arg_1=33, var_85_arg_2=0, var_87=2, var_88=0, var_88_arg_0=0, var_89=1, var_89_arg_0=0, var_89_arg_1=0, var_90=254, var_90_arg_0=1, var_90_arg_1=254, var_90_arg_2=0, var_92=1, var_93=1, var_93_arg_0=1, var_94=0, var_94_arg_0=0, var_94_arg_1=1, var_95=254, var_95_arg_0=0, var_95_arg_1=254, var_95_arg_2=254, var_97=0, var_97_arg_0=0, var_98=0, var_98_arg_0=0, var_99=0, var_99_arg_0=0, var_99_arg_1=2, var_99_arg_2=254] [L147] CALL assume_abort_if_not(constr_143_arg_0) VAL [\old(cond)=1] [L21] COND FALSE !(!cond) [L147] RET assume_abort_if_not(constr_143_arg_0) VAL [bad_156_arg_0=0, constr_137_arg_0=1, constr_143_arg_0=1, constr_149_arg_0=1, init_133_arg_1=1, input_150=1, input_2=4, input_4=5, input_5=40, input_6=2, input_7=0, input_8=1, input_9=0, mask_SORT_1=1, mask_SORT_11=63, mask_SORT_13=31, mask_SORT_19=15, mask_SORT_3=255, mask_SORT_60=7, mask_SORT_81=3, msb_SORT_1=1, msb_SORT_11=32, msb_SORT_13=16, msb_SORT_19=8, msb_SORT_3=128, msb_SORT_60=4, msb_SORT_81=2, next_375_arg_1=0, next_378_arg_1=1, next_381_arg_1=0, next_384_arg_1=0, next_387_arg_1=0, next_390_arg_1=1, next_393_arg_1=1, next_396_arg_1=0, next_399_arg_1=0, next_402_arg_1=0, next_405_arg_1=0, next_408_arg_1=0, next_411_arg_1=0, next_414_arg_1=0, next_417_arg_1=33, next_420_arg_1=254, next_423_arg_1=254, next_426_arg_1=2, next_432_arg_1=0, next_435_arg_1=0, next_438_arg_1=1, next_441_arg_1=0, next_444_arg_1=0, next_445_arg_1=0, next_448_arg_1=0, state_10=0, state_101=0, state_109=0, state_110=1, state_113=0, state_12=1, state_128=0, state_132=0, state_18=0, state_185=0, state_24=0, state_29=0, state_34=1, state_39=1, state_44=0, state_49=0, state_54=0, state_59=0, state_65=0, state_70=0, state_75=0, state_80=33, state_86=254, state_91=254, state_96=2, var_102=1, var_102_arg_0=1, var_103=6, var_103_arg_0=1, var_105=17, var_106=31, var_106_arg_0=31, var_107=0, var_107_arg_0=0, var_107_arg_1=31, var_111=1, var_111_arg_0=0, var_112=1, var_112_arg_0=1, var_112_arg_1=1, var_114=1, var_114_arg_0=54, var_115=1, var_115_arg_0=1, var_115_arg_1=1, var_116=3, var_116_arg_0=1, var_117=0, var_117_arg_0=36, var_117_arg_1=3, var_118=0, var_118_arg_0=0, var_119=54, var_119_arg_0=54, var_119_arg_1=0, var_120=1, var_120_arg_0=1, var_121=53, var_121_arg_0=54, var_121_arg_1=1, var_122=0, var_123=0, var_123_arg_0=0, var_123_arg_1=0, var_123_arg_2=53, var_124=0, var_124_arg_0=0, var_125=1, var_125_arg_0=0, var_126=1, var_126_arg_0=1, var_126_arg_1=1, var_127=1, var_127_arg_0=1, var_129=1, var_129_arg_0=0, var_129_arg_1=0, var_130=1, var_130_arg_0=1, var_130_arg_1=1, var_134=1, var_134_arg_0=0, var_134_arg_1=0, var_135=2, var_135_arg_0=1, var_136=1, var_136_arg_0=1, var_136_arg_1=2, var_138=1, var_138_arg_0=0, var_139=32, var_139_arg_0=2, var_14=0, var_140=0, var_140_arg_0=1, var_140_arg_1=32, var_141=255, var_141_arg_0=1, var_142=1, var_142_arg_0=0, var_142_arg_1=255, var_144=2, var_144_arg_0=6, var_145=0, var_145_arg_0=1, var_146=0, var_146_arg_0=2, var_146_arg_1=0, var_147=1, var_147_arg_0=1, var_148=1, var_148_arg_0=0, var_148_arg_1=1, var_14_arg_0=0, var_15=16, var_151=1, var_151_arg_0=1, var_151_arg_1=1, var_151_arg_2=1, var_152=0, var_153=0, var_153_arg_0=1, var_153_arg_1=0, var_153_arg_2=1, var_154=2, var_154_arg_0=1, var_155=0, var_155_arg_0=0, var_155_arg_1=2, var_16=0, var_160=1, var_160_arg_0=36, var_160_arg_1=1, var_161=1, var_161_arg_0=1, var_161_arg_1=0, var_16_arg_0=0, var_16_arg_1=16, var_17=0, var_17_arg_0=0, var_17_arg_1=0, var_17_arg_2=0, var_186=0, var_186_arg_0=0, var_187=0, var_187_arg_0=0, var_188=36, var_188_arg_0=0, var_189=0, var_189_arg_0=36, var_189_arg_1=36, var_194=10, var_194_arg_0=10, var_195=0, var_195_arg_0=0, var_195_arg_1=10, var_196=0, var_196_arg_0=36, var_196_arg_1=0, var_20=15, var_201=0, var_201_arg_0=0, var_202=1, var_202_arg_0=0, var_202_arg_1=0, var_203=0, var_203_arg_0=36, var_203_arg_1=1, var_208=0, var_208_arg_0=0, var_209=1, var_209_arg_0=0, var_209_arg_1=0, var_21=0, var_210=0, var_210_arg_0=36, var_210_arg_1=1, var_215=0, var_215_arg_0=0, var_216=1, var_216_arg_0=0, var_216_arg_1=0, var_217=0, var_217_arg_0=36, var_217_arg_1=1, var_21_arg_0=0, var_22=1, var_222=0, var_222_arg_0=0, var_223=1, var_223_arg_0=0, var_223_arg_1=0, var_224=0, var_224_arg_0=36, var_224_arg_1=1, var_229=0, var_229_arg_0=0, var_22_arg_0=0, var_22_arg_1=0, var_23=0, var_230=1, var_230_arg_0=0, var_230_arg_1=0, var_231=0, var_231_arg_0=36, var_231_arg_1=1, var_236=0, var_236_arg_0=0, var_236_arg_1=16, var_237=0, var_237_arg_0=36, var_237_arg_1=0, var_23_arg_0=1, var_23_arg_1=0, var_23_arg_2=0, var_242=1, var_242_arg_0=1, var_243=0, var_243_arg_0=0, var_243_arg_1=1, var_244=0, var_244_arg_0=36, var_244_arg_1=0, var_249=255, var_249_arg_0=255, var_25=14, var_250=0, var_250_arg_0=0, var_250_arg_1=255, var_251=0, var_251_arg_0=36, var_251_arg_1=0, var_256=0, var_256_arg_0=0, var_257=1, var_257_arg_0=0, var_257_arg_1=0, var_258=0, var_258_arg_0=36, var_258_arg_1=1, var_26=0, var_263=0, var_263_arg_0=0, var_264=1, var_264_arg_0=0, var_264_arg_1=0, var_265=0, var_265_arg_0=36, var_265_arg_1=1, var_26_arg_0=0, var_27=1, var_270=0, var_270_arg_0=0, var_271=1, var_271_arg_0=0, var_271_arg_1=0, var_272=0, var_272_arg_0=36, var_272_arg_1=1, var_277=0, var_277_arg_0=0, var_278=1, var_278_arg_0=0, var_278_arg_1=0, var_279=0, var_279_arg_0=36, var_279_arg_1=1, var_27_arg_0=0, var_27_arg_1=0, var_28=0, var_284=0, var_284_arg_0=0, var_285=1, var_285_arg_0=0, var_285_arg_1=0, var_286=0, var_286_arg_0=36, var_286_arg_1=1, var_28_arg_0=1, var_28_arg_1=0, var_28_arg_2=0, var_291=255, var_291_arg_0=255, var_292=0, var_292_arg_0=0, var_292_arg_1=255, var_293=0, var_293_arg_0=36, var_293_arg_1=0, var_298=0, var_298_arg_0=0, var_299=1, var_299_arg_0=0, var_299_arg_1=0, var_30=13, var_300=0, var_300_arg_0=36, var_300_arg_1=1, var_303=1, var_303_arg_0=1, var_304=1, var_304_arg_0=0, var_304_arg_1=1, var_309=0, var_309_arg_0=0, var_31=0, var_310=0, var_310_arg_0=0, var_310_arg_1=0, var_31_arg_0=0, var_32=1, var_329=45, var_329_arg_0=47, var_329_arg_1=36, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_330=0, var_330_arg_0=1, var_330_arg_1=45, var_333=1, var_333_arg_0=1, var_338=1, var_338_arg_0=45, var_338_arg_1=1, var_33_arg_0=1, var_33_arg_1=0, var_33_arg_2=0, var_341=1, var_341_arg_0=1, var_341_arg_1=0, var_35=12, var_353=1, var_353_arg_0=36, var_353_arg_1=1, var_354=1, var_354_arg_0=1, var_354_arg_1=0, var_355=1, var_355_arg_0=1, var_355_arg_1=1, var_36=23, var_36_arg_0=23, var_37=0, var_372=0, var_372_arg_0=0, var_372_arg_1=0, var_372_arg_2=0, var_373=0, var_374=0, var_374_arg_0=0, var_374_arg_1=0, var_374_arg_2=0, var_376=1, var_376_arg_0=1, var_376_arg_1=1, var_376_arg_2=0, var_377=1, var_377_arg_0=0, var_377_arg_1=0, var_377_arg_2=1, var_379=0, var_379_arg_0=0, var_379_arg_1=0, var_379_arg_2=0, var_37_arg_0=0, var_37_arg_1=23, var_38=0, var_380=0, var_380_arg_0=0, var_380_arg_1=0, var_380_arg_2=0, var_382=0, var_382_arg_0=0, var_382_arg_1=0, var_382_arg_2=0, var_383=0, var_383_arg_0=0, var_383_arg_1=0, var_383_arg_2=0, var_385=0, var_385_arg_0=0, var_385_arg_1=0, var_385_arg_2=0, var_386=0, var_386_arg_0=0, var_386_arg_1=0, var_386_arg_2=0, var_388=1, var_388_arg_0=0, var_388_arg_1=0, var_388_arg_2=1, var_389=1, var_389_arg_0=0, var_389_arg_1=0, var_389_arg_2=1, var_38_arg_0=0, var_38_arg_1=1, var_38_arg_2=0, var_391=1, var_391_arg_0=0, var_391_arg_1=0, var_391_arg_2=1, var_392=1, var_392_arg_0=0, var_392_arg_1=0, var_392_arg_2=1, var_394=0, var_394_arg_0=0, var_394_arg_1=0, var_394_arg_2=0, var_395=0, var_395_arg_0=0, var_395_arg_1=0, var_395_arg_2=0, var_397=0, var_397_arg_0=0, var_397_arg_1=0, var_397_arg_2=0, var_398=0, var_398_arg_0=0, var_398_arg_1=0, var_398_arg_2=0, var_40=11, var_400=0, var_400_arg_0=0, var_400_arg_1=0, var_400_arg_2=0, var_401=0, var_401_arg_0=0, var_401_arg_1=0, var_401_arg_2=0, var_403=0, var_403_arg_0=0, var_403_arg_1=0, var_403_arg_2=0, var_404=0, var_404_arg_0=0, var_404_arg_1=0, var_404_arg_2=0, var_406=0, var_406_arg_0=0, var_406_arg_1=0, var_406_arg_2=0, var_407=0, var_407_arg_0=0, var_407_arg_1=0, var_407_arg_2=0, var_409=0, var_409_arg_0=0, var_409_arg_1=0, var_409_arg_2=0, var_41=250, var_410=0, var_410_arg_0=0, var_410_arg_1=0, var_410_arg_2=0, var_412=0, var_412_arg_0=0, var_412_arg_1=0, var_412_arg_2=0, var_413=0, var_413_arg_0=0, var_413_arg_1=0, var_413_arg_2=0, var_415=33, var_415_arg_0=0, var_415_arg_1=0, var_415_arg_2=33, var_416=33, var_416_arg_0=0, var_416_arg_1=0, var_416_arg_2=33, var_418=254, var_418_arg_0=0, var_418_arg_1=0, var_418_arg_2=254, var_419=254, var_419_arg_0=0, var_419_arg_1=0, var_419_arg_2=254, var_41_arg_0=250, var_42=0, var_421=254, var_421_arg_0=0, var_421_arg_1=0, var_421_arg_2=254, var_422=254, var_422_arg_0=0, var_422_arg_1=0, var_422_arg_2=254, var_424=2, var_424_arg_0=0, var_424_arg_1=0, var_424_arg_2=2, var_425=2, var_425_arg_0=0, var_425_arg_1=0, var_425_arg_2=2, var_427=0, var_427_arg_0=0, var_428=1, var_428_arg_0=1, var_428_arg_1=0, var_429=1, var_429_arg_0=1, var_42_arg_0=0, var_42_arg_1=250, var_43=0, var_430=0, var_430_arg_0=1, var_430_arg_1=1, var_431=0, var_431_arg_0=0, var_431_arg_1=0, var_431_arg_2=0, var_433=0, var_433_arg_0=1, var_433_arg_1=0, var_433_arg_2=1, var_434=0, var_434_arg_0=0, var_434_arg_1=0, var_434_arg_2=0, var_436=1, var_436_arg_0=1, var_436_arg_1=1, var_436_arg_2=0, var_437=1, var_437_arg_0=0, var_437_arg_1=0, var_437_arg_2=1, var_439=0, var_439_arg_0=1, var_439_arg_1=0, var_439_arg_2=54, var_43_arg_0=0, var_43_arg_1=1, var_43_arg_2=0, var_440=0, var_440_arg_0=0, var_440_arg_1=0, var_440_arg_2=0, var_442=0, var_442_arg_0=1, var_442_arg_1=0, var_442_arg_2=0, var_443=0, var_443_arg_0=0, var_443_arg_1=0, var_443_arg_2=0, var_446=0, var_446_arg_0=1, var_446_arg_1=0, var_446_arg_2=0, var_447=0, var_447_arg_0=0, var_447_arg_1=0, var_447_arg_2=0, var_45=10, var_46=0, var_46_arg_0=0, var_47=1, var_47_arg_0=0, var_47_arg_1=0, var_48=0, var_48_arg_0=1, var_48_arg_1=0, var_48_arg_2=0, var_50=9, var_51=0, var_51_arg_0=0, var_52=1, var_52_arg_0=0, var_52_arg_1=0, var_53=0, var_53_arg_0=1, var_53_arg_1=0, var_53_arg_2=0, var_55=8, var_56=247, var_56_arg_0=247, var_57=0, var_57_arg_0=0, var_57_arg_1=247, var_58=0, var_58_arg_0=0, var_58_arg_1=0, var_58_arg_2=0, var_61=7, var_62=0, var_62_arg_0=0, var_63=1, var_63_arg_0=0, var_63_arg_1=0, var_64=0, var_64_arg_0=1, var_64_arg_1=0, var_64_arg_2=0, var_66=6, var_67=0, var_67_arg_0=0, var_68=1, var_68_arg_0=0, var_68_arg_1=0, var_69=0, var_69_arg_0=1, var_69_arg_1=0, var_69_arg_2=0, var_71=5, var_72=0, var_72_arg_0=0, var_73=1, var_73_arg_0=0, var_73_arg_1=0, var_74=0, var_74_arg_0=1, var_74_arg_1=0, var_74_arg_2=0, var_76=4, var_77=24, var_77_arg_0=24, var_78=0, var_78_arg_0=0, var_78_arg_1=24, var_79=0, var_79_arg_0=0, var_79_arg_1=0, var_79_arg_2=0, var_82=3, var_83=3, var_83_arg_0=3, var_84=0, var_84_arg_0=0, var_84_arg_1=3, var_85=0, var_85_arg_0=0, var_85_arg_1=33, var_85_arg_2=0, var_87=2, var_88=0, var_88_arg_0=0, var_89=1, var_89_arg_0=0, var_89_arg_1=0, var_90=254, var_90_arg_0=1, var_90_arg_1=254, var_90_arg_2=0, var_92=1, var_93=1, var_93_arg_0=1, var_94=0, var_94_arg_0=0, var_94_arg_1=1, var_95=254, var_95_arg_0=0, var_95_arg_1=254, var_95_arg_2=254, var_97=0, var_97_arg_0=0, var_98=0, var_98_arg_0=0, var_99=0, var_99_arg_0=0, var_99_arg_1=2, var_99_arg_2=254] [L148] SORT_11 var_102_arg_0 = state_101; [L149] SORT_1 var_102 = var_102_arg_0 != 0; [L150] SORT_1 var_103_arg_0 = var_102; [L151] SORT_1 var_103 = ~var_103_arg_0; [L152] SORT_1 var_144_arg_0 = var_103; [L153] SORT_1 var_144 = ~var_144_arg_0; [L154] SORT_1 var_145_arg_0 = input_5; [L155] SORT_1 var_145 = ~var_145_arg_0; [L156] SORT_1 var_146_arg_0 = var_144; [L157] SORT_1 var_146_arg_1 = var_145; [L158] SORT_1 var_146 = var_146_arg_0 | var_146_arg_1; [L159] SORT_1 var_147_arg_0 = var_92; [L160] SORT_1 var_147 = ~var_147_arg_0; [L161] SORT_1 var_148_arg_0 = var_146; [L162] SORT_1 var_148_arg_1 = var_147; [L163] SORT_1 var_148 = var_148_arg_0 | var_148_arg_1; [L164] var_148 = var_148 & mask_SORT_1 [L165] SORT_1 constr_149_arg_0 = var_148; VAL [bad_156_arg_0=0, constr_137_arg_0=1, constr_143_arg_0=1, constr_149_arg_0=1, init_133_arg_1=1, input_150=1, input_2=4, input_4=5, input_5=40, input_6=2, input_7=0, input_8=1, input_9=0, mask_SORT_1=1, mask_SORT_11=63, mask_SORT_13=31, mask_SORT_19=15, mask_SORT_3=255, mask_SORT_60=7, mask_SORT_81=3, msb_SORT_1=1, msb_SORT_11=32, msb_SORT_13=16, msb_SORT_19=8, msb_SORT_3=128, msb_SORT_60=4, msb_SORT_81=2, next_375_arg_1=0, next_378_arg_1=1, next_381_arg_1=0, next_384_arg_1=0, next_387_arg_1=0, next_390_arg_1=1, next_393_arg_1=1, next_396_arg_1=0, next_399_arg_1=0, next_402_arg_1=0, next_405_arg_1=0, next_408_arg_1=0, next_411_arg_1=0, next_414_arg_1=0, next_417_arg_1=33, next_420_arg_1=254, next_423_arg_1=254, next_426_arg_1=2, next_432_arg_1=0, next_435_arg_1=0, next_438_arg_1=1, next_441_arg_1=0, next_444_arg_1=0, next_445_arg_1=0, next_448_arg_1=0, state_10=0, state_101=0, state_109=0, state_110=1, state_113=0, state_12=1, state_128=0, state_132=0, state_18=0, state_185=0, state_24=0, state_29=0, state_34=1, state_39=1, state_44=0, state_49=0, state_54=0, state_59=0, state_65=0, state_70=0, state_75=0, state_80=33, state_86=254, state_91=254, state_96=2, var_102=0, var_102_arg_0=0, var_103=2, var_103_arg_0=0, var_105=17, var_106=31, var_106_arg_0=31, var_107=0, var_107_arg_0=0, var_107_arg_1=31, var_111=1, var_111_arg_0=0, var_112=1, var_112_arg_0=1, var_112_arg_1=1, var_114=1, var_114_arg_0=54, var_115=1, var_115_arg_0=1, var_115_arg_1=1, var_116=3, var_116_arg_0=1, var_117=0, var_117_arg_0=36, var_117_arg_1=3, var_118=0, var_118_arg_0=0, var_119=54, var_119_arg_0=54, var_119_arg_1=0, var_120=1, var_120_arg_0=1, var_121=53, var_121_arg_0=54, var_121_arg_1=1, var_122=0, var_123=0, var_123_arg_0=0, var_123_arg_1=0, var_123_arg_2=53, var_124=0, var_124_arg_0=0, var_125=1, var_125_arg_0=0, var_126=1, var_126_arg_0=1, var_126_arg_1=1, var_127=1, var_127_arg_0=1, var_129=1, var_129_arg_0=0, var_129_arg_1=0, var_130=1, var_130_arg_0=1, var_130_arg_1=1, var_134=1, var_134_arg_0=0, var_134_arg_1=0, var_135=2, var_135_arg_0=1, var_136=1, var_136_arg_0=1, var_136_arg_1=2, var_138=1, var_138_arg_0=0, var_139=32, var_139_arg_0=2, var_14=0, var_140=0, var_140_arg_0=1, var_140_arg_1=32, var_141=255, var_141_arg_0=1, var_142=1, var_142_arg_0=0, var_142_arg_1=255, var_144=2, var_144_arg_0=2, var_145=1, var_145_arg_0=40, var_146=2, var_146_arg_0=2, var_146_arg_1=1, var_147=1, var_147_arg_0=1, var_148=1, var_148_arg_0=2, var_148_arg_1=1, var_14_arg_0=0, var_15=16, var_151=1, var_151_arg_0=1, var_151_arg_1=1, var_151_arg_2=1, var_152=0, var_153=0, var_153_arg_0=1, var_153_arg_1=0, var_153_arg_2=1, var_154=2, var_154_arg_0=1, var_155=0, var_155_arg_0=0, var_155_arg_1=2, var_16=0, var_160=1, var_160_arg_0=36, var_160_arg_1=1, var_161=1, var_161_arg_0=1, var_161_arg_1=0, var_16_arg_0=0, var_16_arg_1=16, var_17=0, var_17_arg_0=0, var_17_arg_1=0, var_17_arg_2=0, var_186=0, var_186_arg_0=0, var_187=0, var_187_arg_0=0, var_188=36, var_188_arg_0=0, var_189=0, var_189_arg_0=36, var_189_arg_1=36, var_194=10, var_194_arg_0=10, var_195=0, var_195_arg_0=0, var_195_arg_1=10, var_196=0, var_196_arg_0=36, var_196_arg_1=0, var_20=15, var_201=0, var_201_arg_0=0, var_202=1, var_202_arg_0=0, var_202_arg_1=0, var_203=0, var_203_arg_0=36, var_203_arg_1=1, var_208=0, var_208_arg_0=0, var_209=1, var_209_arg_0=0, var_209_arg_1=0, var_21=0, var_210=0, var_210_arg_0=36, var_210_arg_1=1, var_215=0, var_215_arg_0=0, var_216=1, var_216_arg_0=0, var_216_arg_1=0, var_217=0, var_217_arg_0=36, var_217_arg_1=1, var_21_arg_0=0, var_22=1, var_222=0, var_222_arg_0=0, var_223=1, var_223_arg_0=0, var_223_arg_1=0, var_224=0, var_224_arg_0=36, var_224_arg_1=1, var_229=0, var_229_arg_0=0, var_22_arg_0=0, var_22_arg_1=0, var_23=0, var_230=1, var_230_arg_0=0, var_230_arg_1=0, var_231=0, var_231_arg_0=36, var_231_arg_1=1, var_236=0, var_236_arg_0=0, var_236_arg_1=16, var_237=0, var_237_arg_0=36, var_237_arg_1=0, var_23_arg_0=1, var_23_arg_1=0, var_23_arg_2=0, var_242=1, var_242_arg_0=1, var_243=0, var_243_arg_0=0, var_243_arg_1=1, var_244=0, var_244_arg_0=36, var_244_arg_1=0, var_249=255, var_249_arg_0=255, var_25=14, var_250=0, var_250_arg_0=0, var_250_arg_1=255, var_251=0, var_251_arg_0=36, var_251_arg_1=0, var_256=0, var_256_arg_0=0, var_257=1, var_257_arg_0=0, var_257_arg_1=0, var_258=0, var_258_arg_0=36, var_258_arg_1=1, var_26=0, var_263=0, var_263_arg_0=0, var_264=1, var_264_arg_0=0, var_264_arg_1=0, var_265=0, var_265_arg_0=36, var_265_arg_1=1, var_26_arg_0=0, var_27=1, var_270=0, var_270_arg_0=0, var_271=1, var_271_arg_0=0, var_271_arg_1=0, var_272=0, var_272_arg_0=36, var_272_arg_1=1, var_277=0, var_277_arg_0=0, var_278=1, var_278_arg_0=0, var_278_arg_1=0, var_279=0, var_279_arg_0=36, var_279_arg_1=1, var_27_arg_0=0, var_27_arg_1=0, var_28=0, var_284=0, var_284_arg_0=0, var_285=1, var_285_arg_0=0, var_285_arg_1=0, var_286=0, var_286_arg_0=36, var_286_arg_1=1, var_28_arg_0=1, var_28_arg_1=0, var_28_arg_2=0, var_291=255, var_291_arg_0=255, var_292=0, var_292_arg_0=0, var_292_arg_1=255, var_293=0, var_293_arg_0=36, var_293_arg_1=0, var_298=0, var_298_arg_0=0, var_299=1, var_299_arg_0=0, var_299_arg_1=0, var_30=13, var_300=0, var_300_arg_0=36, var_300_arg_1=1, var_303=1, var_303_arg_0=1, var_304=1, var_304_arg_0=0, var_304_arg_1=1, var_309=0, var_309_arg_0=0, var_31=0, var_310=0, var_310_arg_0=0, var_310_arg_1=0, var_31_arg_0=0, var_32=1, var_329=45, var_329_arg_0=47, var_329_arg_1=36, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_330=0, var_330_arg_0=1, var_330_arg_1=45, var_333=1, var_333_arg_0=1, var_338=1, var_338_arg_0=45, var_338_arg_1=1, var_33_arg_0=1, var_33_arg_1=0, var_33_arg_2=0, var_341=1, var_341_arg_0=1, var_341_arg_1=0, var_35=12, var_353=1, var_353_arg_0=36, var_353_arg_1=1, var_354=1, var_354_arg_0=1, var_354_arg_1=0, var_355=1, var_355_arg_0=1, var_355_arg_1=1, var_36=23, var_36_arg_0=23, var_37=0, var_372=0, var_372_arg_0=0, var_372_arg_1=0, var_372_arg_2=0, var_373=0, var_374=0, var_374_arg_0=0, var_374_arg_1=0, var_374_arg_2=0, var_376=1, var_376_arg_0=1, var_376_arg_1=1, var_376_arg_2=0, var_377=1, var_377_arg_0=0, var_377_arg_1=0, var_377_arg_2=1, var_379=0, var_379_arg_0=0, var_379_arg_1=0, var_379_arg_2=0, var_37_arg_0=0, var_37_arg_1=23, var_38=0, var_380=0, var_380_arg_0=0, var_380_arg_1=0, var_380_arg_2=0, var_382=0, var_382_arg_0=0, var_382_arg_1=0, var_382_arg_2=0, var_383=0, var_383_arg_0=0, var_383_arg_1=0, var_383_arg_2=0, var_385=0, var_385_arg_0=0, var_385_arg_1=0, var_385_arg_2=0, var_386=0, var_386_arg_0=0, var_386_arg_1=0, var_386_arg_2=0, var_388=1, var_388_arg_0=0, var_388_arg_1=0, var_388_arg_2=1, var_389=1, var_389_arg_0=0, var_389_arg_1=0, var_389_arg_2=1, var_38_arg_0=0, var_38_arg_1=1, var_38_arg_2=0, var_391=1, var_391_arg_0=0, var_391_arg_1=0, var_391_arg_2=1, var_392=1, var_392_arg_0=0, var_392_arg_1=0, var_392_arg_2=1, var_394=0, var_394_arg_0=0, var_394_arg_1=0, var_394_arg_2=0, var_395=0, var_395_arg_0=0, var_395_arg_1=0, var_395_arg_2=0, var_397=0, var_397_arg_0=0, var_397_arg_1=0, var_397_arg_2=0, var_398=0, var_398_arg_0=0, var_398_arg_1=0, var_398_arg_2=0, var_40=11, var_400=0, var_400_arg_0=0, var_400_arg_1=0, var_400_arg_2=0, var_401=0, var_401_arg_0=0, var_401_arg_1=0, var_401_arg_2=0, var_403=0, var_403_arg_0=0, var_403_arg_1=0, var_403_arg_2=0, var_404=0, var_404_arg_0=0, var_404_arg_1=0, var_404_arg_2=0, var_406=0, var_406_arg_0=0, var_406_arg_1=0, var_406_arg_2=0, var_407=0, var_407_arg_0=0, var_407_arg_1=0, var_407_arg_2=0, var_409=0, var_409_arg_0=0, var_409_arg_1=0, var_409_arg_2=0, var_41=250, var_410=0, var_410_arg_0=0, var_410_arg_1=0, var_410_arg_2=0, var_412=0, var_412_arg_0=0, var_412_arg_1=0, var_412_arg_2=0, var_413=0, var_413_arg_0=0, var_413_arg_1=0, var_413_arg_2=0, var_415=33, var_415_arg_0=0, var_415_arg_1=0, var_415_arg_2=33, var_416=33, var_416_arg_0=0, var_416_arg_1=0, var_416_arg_2=33, var_418=254, var_418_arg_0=0, var_418_arg_1=0, var_418_arg_2=254, var_419=254, var_419_arg_0=0, var_419_arg_1=0, var_419_arg_2=254, var_41_arg_0=250, var_42=0, var_421=254, var_421_arg_0=0, var_421_arg_1=0, var_421_arg_2=254, var_422=254, var_422_arg_0=0, var_422_arg_1=0, var_422_arg_2=254, var_424=2, var_424_arg_0=0, var_424_arg_1=0, var_424_arg_2=2, var_425=2, var_425_arg_0=0, var_425_arg_1=0, var_425_arg_2=2, var_427=0, var_427_arg_0=0, var_428=1, var_428_arg_0=1, var_428_arg_1=0, var_429=1, var_429_arg_0=1, var_42_arg_0=0, var_42_arg_1=250, var_43=0, var_430=0, var_430_arg_0=1, var_430_arg_1=1, var_431=0, var_431_arg_0=0, var_431_arg_1=0, var_431_arg_2=0, var_433=0, var_433_arg_0=1, var_433_arg_1=0, var_433_arg_2=1, var_434=0, var_434_arg_0=0, var_434_arg_1=0, var_434_arg_2=0, var_436=1, var_436_arg_0=1, var_436_arg_1=1, var_436_arg_2=0, var_437=1, var_437_arg_0=0, var_437_arg_1=0, var_437_arg_2=1, var_439=0, var_439_arg_0=1, var_439_arg_1=0, var_439_arg_2=54, var_43_arg_0=0, var_43_arg_1=1, var_43_arg_2=0, var_440=0, var_440_arg_0=0, var_440_arg_1=0, var_440_arg_2=0, var_442=0, var_442_arg_0=1, var_442_arg_1=0, var_442_arg_2=0, var_443=0, var_443_arg_0=0, var_443_arg_1=0, var_443_arg_2=0, var_446=0, var_446_arg_0=1, var_446_arg_1=0, var_446_arg_2=0, var_447=0, var_447_arg_0=0, var_447_arg_1=0, var_447_arg_2=0, var_45=10, var_46=0, var_46_arg_0=0, var_47=1, var_47_arg_0=0, var_47_arg_1=0, var_48=0, var_48_arg_0=1, var_48_arg_1=0, var_48_arg_2=0, var_50=9, var_51=0, var_51_arg_0=0, var_52=1, var_52_arg_0=0, var_52_arg_1=0, var_53=0, var_53_arg_0=1, var_53_arg_1=0, var_53_arg_2=0, var_55=8, var_56=247, var_56_arg_0=247, var_57=0, var_57_arg_0=0, var_57_arg_1=247, var_58=0, var_58_arg_0=0, var_58_arg_1=0, var_58_arg_2=0, var_61=7, var_62=0, var_62_arg_0=0, var_63=1, var_63_arg_0=0, var_63_arg_1=0, var_64=0, var_64_arg_0=1, var_64_arg_1=0, var_64_arg_2=0, var_66=6, var_67=0, var_67_arg_0=0, var_68=1, var_68_arg_0=0, var_68_arg_1=0, var_69=0, var_69_arg_0=1, var_69_arg_1=0, var_69_arg_2=0, var_71=5, var_72=0, var_72_arg_0=0, var_73=1, var_73_arg_0=0, var_73_arg_1=0, var_74=0, var_74_arg_0=1, var_74_arg_1=0, var_74_arg_2=0, var_76=4, var_77=24, var_77_arg_0=24, var_78=0, var_78_arg_0=0, var_78_arg_1=24, var_79=0, var_79_arg_0=0, var_79_arg_1=0, var_79_arg_2=0, var_82=3, var_83=3, var_83_arg_0=3, var_84=0, var_84_arg_0=0, var_84_arg_1=3, var_85=0, var_85_arg_0=0, var_85_arg_1=33, var_85_arg_2=0, var_87=2, var_88=0, var_88_arg_0=0, var_89=1, var_89_arg_0=0, var_89_arg_1=0, var_90=254, var_90_arg_0=1, var_90_arg_1=254, var_90_arg_2=0, var_92=1, var_93=1, var_93_arg_0=1, var_94=0, var_94_arg_0=0, var_94_arg_1=1, var_95=254, var_95_arg_0=0, var_95_arg_1=254, var_95_arg_2=254, var_97=0, var_97_arg_0=0, var_98=0, var_98_arg_0=0, var_99=0, var_99_arg_0=0, var_99_arg_1=2, var_99_arg_2=254] [L166] CALL assume_abort_if_not(constr_149_arg_0) VAL [\old(cond)=1] [L21] COND FALSE !(!cond) [L166] RET assume_abort_if_not(constr_149_arg_0) VAL [bad_156_arg_0=0, constr_137_arg_0=1, constr_143_arg_0=1, constr_149_arg_0=1, init_133_arg_1=1, input_150=1, input_2=4, input_4=5, input_5=40, input_6=2, input_7=0, input_8=1, input_9=0, mask_SORT_1=1, mask_SORT_11=63, mask_SORT_13=31, mask_SORT_19=15, mask_SORT_3=255, mask_SORT_60=7, mask_SORT_81=3, msb_SORT_1=1, msb_SORT_11=32, msb_SORT_13=16, msb_SORT_19=8, msb_SORT_3=128, msb_SORT_60=4, msb_SORT_81=2, next_375_arg_1=0, next_378_arg_1=1, next_381_arg_1=0, next_384_arg_1=0, next_387_arg_1=0, next_390_arg_1=1, next_393_arg_1=1, next_396_arg_1=0, next_399_arg_1=0, next_402_arg_1=0, next_405_arg_1=0, next_408_arg_1=0, next_411_arg_1=0, next_414_arg_1=0, next_417_arg_1=33, next_420_arg_1=254, next_423_arg_1=254, next_426_arg_1=2, next_432_arg_1=0, next_435_arg_1=0, next_438_arg_1=1, next_441_arg_1=0, next_444_arg_1=0, next_445_arg_1=0, next_448_arg_1=0, state_10=0, state_101=0, state_109=0, state_110=1, state_113=0, state_12=1, state_128=0, state_132=0, state_18=0, state_185=0, state_24=0, state_29=0, state_34=1, state_39=1, state_44=0, state_49=0, state_54=0, state_59=0, state_65=0, state_70=0, state_75=0, state_80=33, state_86=254, state_91=254, state_96=2, var_102=0, var_102_arg_0=0, var_103=2, var_103_arg_0=0, var_105=17, var_106=31, var_106_arg_0=31, var_107=0, var_107_arg_0=0, var_107_arg_1=31, var_111=1, var_111_arg_0=0, var_112=1, var_112_arg_0=1, var_112_arg_1=1, var_114=1, var_114_arg_0=54, var_115=1, var_115_arg_0=1, var_115_arg_1=1, var_116=3, var_116_arg_0=1, var_117=0, var_117_arg_0=36, var_117_arg_1=3, var_118=0, var_118_arg_0=0, var_119=54, var_119_arg_0=54, var_119_arg_1=0, var_120=1, var_120_arg_0=1, var_121=53, var_121_arg_0=54, var_121_arg_1=1, var_122=0, var_123=0, var_123_arg_0=0, var_123_arg_1=0, var_123_arg_2=53, var_124=0, var_124_arg_0=0, var_125=1, var_125_arg_0=0, var_126=1, var_126_arg_0=1, var_126_arg_1=1, var_127=1, var_127_arg_0=1, var_129=1, var_129_arg_0=0, var_129_arg_1=0, var_130=1, var_130_arg_0=1, var_130_arg_1=1, var_134=1, var_134_arg_0=0, var_134_arg_1=0, var_135=2, var_135_arg_0=1, var_136=1, var_136_arg_0=1, var_136_arg_1=2, var_138=1, var_138_arg_0=0, var_139=32, var_139_arg_0=2, var_14=0, var_140=0, var_140_arg_0=1, var_140_arg_1=32, var_141=255, var_141_arg_0=1, var_142=1, var_142_arg_0=0, var_142_arg_1=255, var_144=2, var_144_arg_0=2, var_145=1, var_145_arg_0=40, var_146=2, var_146_arg_0=2, var_146_arg_1=1, var_147=1, var_147_arg_0=1, var_148=1, var_148_arg_0=2, var_148_arg_1=1, var_14_arg_0=0, var_15=16, var_151=1, var_151_arg_0=1, var_151_arg_1=1, var_151_arg_2=1, var_152=0, var_153=0, var_153_arg_0=1, var_153_arg_1=0, var_153_arg_2=1, var_154=2, var_154_arg_0=1, var_155=0, var_155_arg_0=0, var_155_arg_1=2, var_16=0, var_160=1, var_160_arg_0=36, var_160_arg_1=1, var_161=1, var_161_arg_0=1, var_161_arg_1=0, var_16_arg_0=0, var_16_arg_1=16, var_17=0, var_17_arg_0=0, var_17_arg_1=0, var_17_arg_2=0, var_186=0, var_186_arg_0=0, var_187=0, var_187_arg_0=0, var_188=36, var_188_arg_0=0, var_189=0, var_189_arg_0=36, var_189_arg_1=36, var_194=10, var_194_arg_0=10, var_195=0, var_195_arg_0=0, var_195_arg_1=10, var_196=0, var_196_arg_0=36, var_196_arg_1=0, var_20=15, var_201=0, var_201_arg_0=0, var_202=1, var_202_arg_0=0, var_202_arg_1=0, var_203=0, var_203_arg_0=36, var_203_arg_1=1, var_208=0, var_208_arg_0=0, var_209=1, var_209_arg_0=0, var_209_arg_1=0, var_21=0, var_210=0, var_210_arg_0=36, var_210_arg_1=1, var_215=0, var_215_arg_0=0, var_216=1, var_216_arg_0=0, var_216_arg_1=0, var_217=0, var_217_arg_0=36, var_217_arg_1=1, var_21_arg_0=0, var_22=1, var_222=0, var_222_arg_0=0, var_223=1, var_223_arg_0=0, var_223_arg_1=0, var_224=0, var_224_arg_0=36, var_224_arg_1=1, var_229=0, var_229_arg_0=0, var_22_arg_0=0, var_22_arg_1=0, var_23=0, var_230=1, var_230_arg_0=0, var_230_arg_1=0, var_231=0, var_231_arg_0=36, var_231_arg_1=1, var_236=0, var_236_arg_0=0, var_236_arg_1=16, var_237=0, var_237_arg_0=36, var_237_arg_1=0, var_23_arg_0=1, var_23_arg_1=0, var_23_arg_2=0, var_242=1, var_242_arg_0=1, var_243=0, var_243_arg_0=0, var_243_arg_1=1, var_244=0, var_244_arg_0=36, var_244_arg_1=0, var_249=255, var_249_arg_0=255, var_25=14, var_250=0, var_250_arg_0=0, var_250_arg_1=255, var_251=0, var_251_arg_0=36, var_251_arg_1=0, var_256=0, var_256_arg_0=0, var_257=1, var_257_arg_0=0, var_257_arg_1=0, var_258=0, var_258_arg_0=36, var_258_arg_1=1, var_26=0, var_263=0, var_263_arg_0=0, var_264=1, var_264_arg_0=0, var_264_arg_1=0, var_265=0, var_265_arg_0=36, var_265_arg_1=1, var_26_arg_0=0, var_27=1, var_270=0, var_270_arg_0=0, var_271=1, var_271_arg_0=0, var_271_arg_1=0, var_272=0, var_272_arg_0=36, var_272_arg_1=1, var_277=0, var_277_arg_0=0, var_278=1, var_278_arg_0=0, var_278_arg_1=0, var_279=0, var_279_arg_0=36, var_279_arg_1=1, var_27_arg_0=0, var_27_arg_1=0, var_28=0, var_284=0, var_284_arg_0=0, var_285=1, var_285_arg_0=0, var_285_arg_1=0, var_286=0, var_286_arg_0=36, var_286_arg_1=1, var_28_arg_0=1, var_28_arg_1=0, var_28_arg_2=0, var_291=255, var_291_arg_0=255, var_292=0, var_292_arg_0=0, var_292_arg_1=255, var_293=0, var_293_arg_0=36, var_293_arg_1=0, var_298=0, var_298_arg_0=0, var_299=1, var_299_arg_0=0, var_299_arg_1=0, var_30=13, var_300=0, var_300_arg_0=36, var_300_arg_1=1, var_303=1, var_303_arg_0=1, var_304=1, var_304_arg_0=0, var_304_arg_1=1, var_309=0, var_309_arg_0=0, var_31=0, var_310=0, var_310_arg_0=0, var_310_arg_1=0, var_31_arg_0=0, var_32=1, var_329=45, var_329_arg_0=47, var_329_arg_1=36, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_330=0, var_330_arg_0=1, var_330_arg_1=45, var_333=1, var_333_arg_0=1, var_338=1, var_338_arg_0=45, var_338_arg_1=1, var_33_arg_0=1, var_33_arg_1=0, var_33_arg_2=0, var_341=1, var_341_arg_0=1, var_341_arg_1=0, var_35=12, var_353=1, var_353_arg_0=36, var_353_arg_1=1, var_354=1, var_354_arg_0=1, var_354_arg_1=0, var_355=1, var_355_arg_0=1, var_355_arg_1=1, var_36=23, var_36_arg_0=23, var_37=0, var_372=0, var_372_arg_0=0, var_372_arg_1=0, var_372_arg_2=0, var_373=0, var_374=0, var_374_arg_0=0, var_374_arg_1=0, var_374_arg_2=0, var_376=1, var_376_arg_0=1, var_376_arg_1=1, var_376_arg_2=0, var_377=1, var_377_arg_0=0, var_377_arg_1=0, var_377_arg_2=1, var_379=0, var_379_arg_0=0, var_379_arg_1=0, var_379_arg_2=0, var_37_arg_0=0, var_37_arg_1=23, var_38=0, var_380=0, var_380_arg_0=0, var_380_arg_1=0, var_380_arg_2=0, var_382=0, var_382_arg_0=0, var_382_arg_1=0, var_382_arg_2=0, var_383=0, var_383_arg_0=0, var_383_arg_1=0, var_383_arg_2=0, var_385=0, var_385_arg_0=0, var_385_arg_1=0, var_385_arg_2=0, var_386=0, var_386_arg_0=0, var_386_arg_1=0, var_386_arg_2=0, var_388=1, var_388_arg_0=0, var_388_arg_1=0, var_388_arg_2=1, var_389=1, var_389_arg_0=0, var_389_arg_1=0, var_389_arg_2=1, var_38_arg_0=0, var_38_arg_1=1, var_38_arg_2=0, var_391=1, var_391_arg_0=0, var_391_arg_1=0, var_391_arg_2=1, var_392=1, var_392_arg_0=0, var_392_arg_1=0, var_392_arg_2=1, var_394=0, var_394_arg_0=0, var_394_arg_1=0, var_394_arg_2=0, var_395=0, var_395_arg_0=0, var_395_arg_1=0, var_395_arg_2=0, var_397=0, var_397_arg_0=0, var_397_arg_1=0, var_397_arg_2=0, var_398=0, var_398_arg_0=0, var_398_arg_1=0, var_398_arg_2=0, var_40=11, var_400=0, var_400_arg_0=0, var_400_arg_1=0, var_400_arg_2=0, var_401=0, var_401_arg_0=0, var_401_arg_1=0, var_401_arg_2=0, var_403=0, var_403_arg_0=0, var_403_arg_1=0, var_403_arg_2=0, var_404=0, var_404_arg_0=0, var_404_arg_1=0, var_404_arg_2=0, var_406=0, var_406_arg_0=0, var_406_arg_1=0, var_406_arg_2=0, var_407=0, var_407_arg_0=0, var_407_arg_1=0, var_407_arg_2=0, var_409=0, var_409_arg_0=0, var_409_arg_1=0, var_409_arg_2=0, var_41=250, var_410=0, var_410_arg_0=0, var_410_arg_1=0, var_410_arg_2=0, var_412=0, var_412_arg_0=0, var_412_arg_1=0, var_412_arg_2=0, var_413=0, var_413_arg_0=0, var_413_arg_1=0, var_413_arg_2=0, var_415=33, var_415_arg_0=0, var_415_arg_1=0, var_415_arg_2=33, var_416=33, var_416_arg_0=0, var_416_arg_1=0, var_416_arg_2=33, var_418=254, var_418_arg_0=0, var_418_arg_1=0, var_418_arg_2=254, var_419=254, var_419_arg_0=0, var_419_arg_1=0, var_419_arg_2=254, var_41_arg_0=250, var_42=0, var_421=254, var_421_arg_0=0, var_421_arg_1=0, var_421_arg_2=254, var_422=254, var_422_arg_0=0, var_422_arg_1=0, var_422_arg_2=254, var_424=2, var_424_arg_0=0, var_424_arg_1=0, var_424_arg_2=2, var_425=2, var_425_arg_0=0, var_425_arg_1=0, var_425_arg_2=2, var_427=0, var_427_arg_0=0, var_428=1, var_428_arg_0=1, var_428_arg_1=0, var_429=1, var_429_arg_0=1, var_42_arg_0=0, var_42_arg_1=250, var_43=0, var_430=0, var_430_arg_0=1, var_430_arg_1=1, var_431=0, var_431_arg_0=0, var_431_arg_1=0, var_431_arg_2=0, var_433=0, var_433_arg_0=1, var_433_arg_1=0, var_433_arg_2=1, var_434=0, var_434_arg_0=0, var_434_arg_1=0, var_434_arg_2=0, var_436=1, var_436_arg_0=1, var_436_arg_1=1, var_436_arg_2=0, var_437=1, var_437_arg_0=0, var_437_arg_1=0, var_437_arg_2=1, var_439=0, var_439_arg_0=1, var_439_arg_1=0, var_439_arg_2=54, var_43_arg_0=0, var_43_arg_1=1, var_43_arg_2=0, var_440=0, var_440_arg_0=0, var_440_arg_1=0, var_440_arg_2=0, var_442=0, var_442_arg_0=1, var_442_arg_1=0, var_442_arg_2=0, var_443=0, var_443_arg_0=0, var_443_arg_1=0, var_443_arg_2=0, var_446=0, var_446_arg_0=1, var_446_arg_1=0, var_446_arg_2=0, var_447=0, var_447_arg_0=0, var_447_arg_1=0, var_447_arg_2=0, var_45=10, var_46=0, var_46_arg_0=0, var_47=1, var_47_arg_0=0, var_47_arg_1=0, var_48=0, var_48_arg_0=1, var_48_arg_1=0, var_48_arg_2=0, var_50=9, var_51=0, var_51_arg_0=0, var_52=1, var_52_arg_0=0, var_52_arg_1=0, var_53=0, var_53_arg_0=1, var_53_arg_1=0, var_53_arg_2=0, var_55=8, var_56=247, var_56_arg_0=247, var_57=0, var_57_arg_0=0, var_57_arg_1=247, var_58=0, var_58_arg_0=0, var_58_arg_1=0, var_58_arg_2=0, var_61=7, var_62=0, var_62_arg_0=0, var_63=1, var_63_arg_0=0, var_63_arg_1=0, var_64=0, var_64_arg_0=1, var_64_arg_1=0, var_64_arg_2=0, var_66=6, var_67=0, var_67_arg_0=0, var_68=1, var_68_arg_0=0, var_68_arg_1=0, var_69=0, var_69_arg_0=1, var_69_arg_1=0, var_69_arg_2=0, var_71=5, var_72=0, var_72_arg_0=0, var_73=1, var_73_arg_0=0, var_73_arg_1=0, var_74=0, var_74_arg_0=1, var_74_arg_1=0, var_74_arg_2=0, var_76=4, var_77=24, var_77_arg_0=24, var_78=0, var_78_arg_0=0, var_78_arg_1=24, var_79=0, var_79_arg_0=0, var_79_arg_1=0, var_79_arg_2=0, var_82=3, var_83=3, var_83_arg_0=3, var_84=0, var_84_arg_0=0, var_84_arg_1=3, var_85=0, var_85_arg_0=0, var_85_arg_1=33, var_85_arg_2=0, var_87=2, var_88=0, var_88_arg_0=0, var_89=1, var_89_arg_0=0, var_89_arg_1=0, var_90=254, var_90_arg_0=1, var_90_arg_1=254, var_90_arg_2=0, var_92=1, var_93=1, var_93_arg_0=1, var_94=0, var_94_arg_0=0, var_94_arg_1=1, var_95=254, var_95_arg_0=0, var_95_arg_1=254, var_95_arg_2=254, var_97=0, var_97_arg_0=0, var_98=0, var_98_arg_0=0, var_99=0, var_99_arg_0=0, var_99_arg_1=2, var_99_arg_2=254] [L168] SORT_1 var_153_arg_0 = state_132; [L169] SORT_1 var_153_arg_1 = var_152; [L170] SORT_1 var_153_arg_2 = var_92; [L171] EXPR var_153_arg_0 ? var_153_arg_1 : var_153_arg_2 [L171] SORT_1 var_153 = var_153_arg_0 ? var_153_arg_1 : var_153_arg_2; [L172] SORT_1 var_111_arg_0 = state_110; [L173] SORT_1 var_111 = ~var_111_arg_0; [L174] SORT_1 var_112_arg_0 = state_109; [L175] SORT_1 var_112_arg_1 = var_111; [L176] SORT_1 var_112 = var_112_arg_0 & var_112_arg_1; [L177] SORT_11 var_114_arg_0 = state_113; [L178] SORT_1 var_114 = var_114_arg_0 != 0; [L179] SORT_1 var_115_arg_0 = var_112; [L180] SORT_1 var_115_arg_1 = var_114; [L181] SORT_1 var_115 = var_115_arg_0 & var_115_arg_1; [L182] SORT_1 var_116_arg_0 = state_109; [L183] SORT_1 var_116 = ~var_116_arg_0; [L184] SORT_1 var_117_arg_0 = input_6; [L185] SORT_1 var_117_arg_1 = var_116; [L186] SORT_1 var_117 = var_117_arg_0 & var_117_arg_1; [L187] SORT_1 var_118_arg_0 = var_117; [L188] var_118_arg_0 = var_118_arg_0 & mask_SORT_1 [L189] SORT_11 var_118 = var_118_arg_0; [L190] SORT_11 var_119_arg_0 = state_113; [L191] SORT_11 var_119_arg_1 = var_118; [L192] SORT_11 var_119 = var_119_arg_0 + var_119_arg_1; [L193] SORT_1 var_120_arg_0 = input_5; [L194] var_120_arg_0 = var_120_arg_0 & mask_SORT_1 [L195] SORT_11 var_120 = var_120_arg_0; [L196] SORT_11 var_121_arg_0 = var_119; [L197] SORT_11 var_121_arg_1 = var_120; [L198] SORT_11 var_121 = var_121_arg_0 - var_121_arg_1; [L199] SORT_1 var_123_arg_0 = input_7; [L200] SORT_11 var_123_arg_1 = var_122; [L201] SORT_11 var_123_arg_2 = var_121; [L202] EXPR var_123_arg_0 ? var_123_arg_1 : var_123_arg_2 [L202] SORT_11 var_123 = var_123_arg_0 ? var_123_arg_1 : var_123_arg_2; [L203] var_123 = var_123 & mask_SORT_11 [L204] SORT_11 var_124_arg_0 = var_123; [L205] SORT_1 var_124 = var_124_arg_0 != 0; [L206] SORT_1 var_125_arg_0 = var_124; [L207] SORT_1 var_125 = ~var_125_arg_0; [L208] SORT_1 var_126_arg_0 = var_115; [L209] SORT_1 var_126_arg_1 = var_125; [L210] SORT_1 var_126 = var_126_arg_0 & var_126_arg_1; [L211] SORT_1 var_127_arg_0 = var_126; [L212] SORT_1 var_127 = ~var_127_arg_0; [L213] SORT_11 var_14_arg_0 = state_12; [L214] SORT_13 var_14 = var_14_arg_0 >> 0; [L215] var_14 = var_14 & mask_SORT_13 [L216] SORT_13 var_97_arg_0 = var_14; [L217] SORT_1 var_97 = var_97_arg_0 != 0; [L218] SORT_1 var_98_arg_0 = var_97; [L219] SORT_1 var_98 = ~var_98_arg_0; [L220] var_98 = var_98 & mask_SORT_1 [L221] SORT_1 var_93_arg_0 = var_92; [L222] var_93_arg_0 = var_93_arg_0 & mask_SORT_1 [L223] SORT_13 var_93 = var_93_arg_0; [L224] SORT_13 var_94_arg_0 = var_14; [L225] SORT_13 var_94_arg_1 = var_93; [L226] SORT_1 var_94 = var_94_arg_0 == var_94_arg_1; [L227] SORT_81 var_88_arg_0 = var_87; [L228] var_88_arg_0 = var_88_arg_0 & mask_SORT_81 [L229] SORT_13 var_88 = var_88_arg_0; [L230] SORT_13 var_89_arg_0 = var_14; [L231] SORT_13 var_89_arg_1 = var_88; [L232] SORT_1 var_89 = var_89_arg_0 == var_89_arg_1; [L233] SORT_81 var_83_arg_0 = var_82; [L234] var_83_arg_0 = var_83_arg_0 & mask_SORT_81 [L235] SORT_13 var_83 = var_83_arg_0; [L236] SORT_13 var_84_arg_0 = var_14; [L237] SORT_13 var_84_arg_1 = var_83; [L238] SORT_1 var_84 = var_84_arg_0 == var_84_arg_1; [L239] SORT_60 var_77_arg_0 = var_76; [L240] var_77_arg_0 = var_77_arg_0 & mask_SORT_60 [L241] SORT_13 var_77 = var_77_arg_0; [L242] SORT_13 var_78_arg_0 = var_14; [L243] SORT_13 var_78_arg_1 = var_77; [L244] SORT_1 var_78 = var_78_arg_0 == var_78_arg_1; [L245] SORT_60 var_72_arg_0 = var_71; [L246] var_72_arg_0 = var_72_arg_0 & mask_SORT_60 [L247] SORT_13 var_72 = var_72_arg_0; [L248] SORT_13 var_73_arg_0 = var_14; [L249] SORT_13 var_73_arg_1 = var_72; [L250] SORT_1 var_73 = var_73_arg_0 == var_73_arg_1; [L251] SORT_60 var_67_arg_0 = var_66; [L252] var_67_arg_0 = var_67_arg_0 & mask_SORT_60 [L253] SORT_13 var_67 = var_67_arg_0; [L254] SORT_13 var_68_arg_0 = var_14; [L255] SORT_13 var_68_arg_1 = var_67; [L256] SORT_1 var_68 = var_68_arg_0 == var_68_arg_1; [L257] SORT_60 var_62_arg_0 = var_61; [L258] var_62_arg_0 = var_62_arg_0 & mask_SORT_60 [L259] SORT_13 var_62 = var_62_arg_0; [L260] SORT_13 var_63_arg_0 = var_14; [L261] SORT_13 var_63_arg_1 = var_62; [L262] SORT_1 var_63 = var_63_arg_0 == var_63_arg_1; [L263] SORT_19 var_56_arg_0 = var_55; [L264] var_56_arg_0 = var_56_arg_0 & mask_SORT_19 [L265] SORT_13 var_56 = var_56_arg_0; [L266] SORT_13 var_57_arg_0 = var_14; [L267] SORT_13 var_57_arg_1 = var_56; [L268] SORT_1 var_57 = var_57_arg_0 == var_57_arg_1; [L269] SORT_19 var_51_arg_0 = var_50; [L270] var_51_arg_0 = var_51_arg_0 & mask_SORT_19 [L271] SORT_13 var_51 = var_51_arg_0; [L272] SORT_13 var_52_arg_0 = var_14; [L273] SORT_13 var_52_arg_1 = var_51; [L274] SORT_1 var_52 = var_52_arg_0 == var_52_arg_1; [L275] SORT_19 var_46_arg_0 = var_45; [L276] var_46_arg_0 = var_46_arg_0 & mask_SORT_19 [L277] SORT_13 var_46 = var_46_arg_0; [L278] SORT_13 var_47_arg_0 = var_14; [L279] SORT_13 var_47_arg_1 = var_46; [L280] SORT_1 var_47 = var_47_arg_0 == var_47_arg_1; [L281] SORT_19 var_41_arg_0 = var_40; [L282] var_41_arg_0 = var_41_arg_0 & mask_SORT_19 [L283] SORT_13 var_41 = var_41_arg_0; [L284] SORT_13 var_42_arg_0 = var_14; [L285] SORT_13 var_42_arg_1 = var_41; [L286] SORT_1 var_42 = var_42_arg_0 == var_42_arg_1; [L287] SORT_19 var_36_arg_0 = var_35; [L288] var_36_arg_0 = var_36_arg_0 & mask_SORT_19 [L289] SORT_13 var_36 = var_36_arg_0; [L290] SORT_13 var_37_arg_0 = var_14; [L291] SORT_13 var_37_arg_1 = var_36; [L292] SORT_1 var_37 = var_37_arg_0 == var_37_arg_1; [L293] SORT_19 var_31_arg_0 = var_30; [L294] var_31_arg_0 = var_31_arg_0 & mask_SORT_19 [L295] SORT_13 var_31 = var_31_arg_0; [L296] SORT_13 var_32_arg_0 = var_14; [L297] SORT_13 var_32_arg_1 = var_31; [L298] SORT_1 var_32 = var_32_arg_0 == var_32_arg_1; [L299] SORT_19 var_26_arg_0 = var_25; [L300] var_26_arg_0 = var_26_arg_0 & mask_SORT_19 [L301] SORT_13 var_26 = var_26_arg_0; [L302] SORT_13 var_27_arg_0 = var_14; [L303] SORT_13 var_27_arg_1 = var_26; [L304] SORT_1 var_27 = var_27_arg_0 == var_27_arg_1; [L305] SORT_19 var_21_arg_0 = var_20; [L306] var_21_arg_0 = var_21_arg_0 & mask_SORT_19 [L307] SORT_13 var_21 = var_21_arg_0; [L308] SORT_13 var_22_arg_0 = var_14; [L309] SORT_13 var_22_arg_1 = var_21; [L310] SORT_1 var_22 = var_22_arg_0 == var_22_arg_1; [L311] SORT_13 var_16_arg_0 = var_14; [L312] SORT_13 var_16_arg_1 = var_15; [L313] SORT_1 var_16 = var_16_arg_0 == var_16_arg_1; [L314] SORT_1 var_17_arg_0 = var_16; [L315] SORT_3 var_17_arg_1 = state_10; [L316] SORT_3 var_17_arg_2 = input_9; [L317] EXPR var_17_arg_0 ? var_17_arg_1 : var_17_arg_2 [L317] SORT_3 var_17 = var_17_arg_0 ? var_17_arg_1 : var_17_arg_2; [L318] SORT_1 var_23_arg_0 = var_22; [L319] SORT_3 var_23_arg_1 = state_18; [L320] SORT_3 var_23_arg_2 = var_17; [L321] EXPR var_23_arg_0 ? var_23_arg_1 : var_23_arg_2 [L321] SORT_3 var_23 = var_23_arg_0 ? var_23_arg_1 : var_23_arg_2; [L322] SORT_1 var_28_arg_0 = var_27; [L323] SORT_3 var_28_arg_1 = state_24; [L324] SORT_3 var_28_arg_2 = var_23; [L325] EXPR var_28_arg_0 ? var_28_arg_1 : var_28_arg_2 [L325] SORT_3 var_28 = var_28_arg_0 ? var_28_arg_1 : var_28_arg_2; [L326] SORT_1 var_33_arg_0 = var_32; [L327] SORT_3 var_33_arg_1 = state_29; [L328] SORT_3 var_33_arg_2 = var_28; [L329] EXPR var_33_arg_0 ? var_33_arg_1 : var_33_arg_2 [L329] SORT_3 var_33 = var_33_arg_0 ? var_33_arg_1 : var_33_arg_2; [L330] SORT_1 var_38_arg_0 = var_37; [L331] SORT_3 var_38_arg_1 = state_34; [L332] SORT_3 var_38_arg_2 = var_33; [L333] EXPR var_38_arg_0 ? var_38_arg_1 : var_38_arg_2 [L333] SORT_3 var_38 = var_38_arg_0 ? var_38_arg_1 : var_38_arg_2; [L334] SORT_1 var_43_arg_0 = var_42; [L335] SORT_3 var_43_arg_1 = state_39; [L336] SORT_3 var_43_arg_2 = var_38; [L337] EXPR var_43_arg_0 ? var_43_arg_1 : var_43_arg_2 [L337] SORT_3 var_43 = var_43_arg_0 ? var_43_arg_1 : var_43_arg_2; [L338] SORT_1 var_48_arg_0 = var_47; [L339] SORT_3 var_48_arg_1 = state_44; [L340] SORT_3 var_48_arg_2 = var_43; [L341] EXPR var_48_arg_0 ? var_48_arg_1 : var_48_arg_2 [L341] SORT_3 var_48 = var_48_arg_0 ? var_48_arg_1 : var_48_arg_2; [L342] SORT_1 var_53_arg_0 = var_52; [L343] SORT_3 var_53_arg_1 = state_49; [L344] SORT_3 var_53_arg_2 = var_48; [L345] EXPR var_53_arg_0 ? var_53_arg_1 : var_53_arg_2 [L345] SORT_3 var_53 = var_53_arg_0 ? var_53_arg_1 : var_53_arg_2; [L346] SORT_1 var_58_arg_0 = var_57; [L347] SORT_3 var_58_arg_1 = state_54; [L348] SORT_3 var_58_arg_2 = var_53; [L349] EXPR var_58_arg_0 ? var_58_arg_1 : var_58_arg_2 [L349] SORT_3 var_58 = var_58_arg_0 ? var_58_arg_1 : var_58_arg_2; [L350] SORT_1 var_64_arg_0 = var_63; [L351] SORT_3 var_64_arg_1 = state_59; [L352] SORT_3 var_64_arg_2 = var_58; [L353] EXPR var_64_arg_0 ? var_64_arg_1 : var_64_arg_2 [L353] SORT_3 var_64 = var_64_arg_0 ? var_64_arg_1 : var_64_arg_2; [L354] SORT_1 var_69_arg_0 = var_68; [L355] SORT_3 var_69_arg_1 = state_65; [L356] SORT_3 var_69_arg_2 = var_64; [L357] EXPR var_69_arg_0 ? var_69_arg_1 : var_69_arg_2 [L357] SORT_3 var_69 = var_69_arg_0 ? var_69_arg_1 : var_69_arg_2; [L358] SORT_1 var_74_arg_0 = var_73; [L359] SORT_3 var_74_arg_1 = state_70; [L360] SORT_3 var_74_arg_2 = var_69; [L361] EXPR var_74_arg_0 ? var_74_arg_1 : var_74_arg_2 [L361] SORT_3 var_74 = var_74_arg_0 ? var_74_arg_1 : var_74_arg_2; [L362] SORT_1 var_79_arg_0 = var_78; [L363] SORT_3 var_79_arg_1 = state_75; [L364] SORT_3 var_79_arg_2 = var_74; [L365] EXPR var_79_arg_0 ? var_79_arg_1 : var_79_arg_2 [L365] SORT_3 var_79 = var_79_arg_0 ? var_79_arg_1 : var_79_arg_2; [L366] SORT_1 var_85_arg_0 = var_84; [L367] SORT_3 var_85_arg_1 = state_80; [L368] SORT_3 var_85_arg_2 = var_79; [L369] EXPR var_85_arg_0 ? var_85_arg_1 : var_85_arg_2 [L369] SORT_3 var_85 = var_85_arg_0 ? var_85_arg_1 : var_85_arg_2; [L370] SORT_1 var_90_arg_0 = var_89; [L371] SORT_3 var_90_arg_1 = state_86; [L372] SORT_3 var_90_arg_2 = var_85; [L373] EXPR var_90_arg_0 ? var_90_arg_1 : var_90_arg_2 [L373] SORT_3 var_90 = var_90_arg_0 ? var_90_arg_1 : var_90_arg_2; [L374] SORT_1 var_95_arg_0 = var_94; [L375] SORT_3 var_95_arg_1 = state_91; [L376] SORT_3 var_95_arg_2 = var_90; [L377] EXPR var_95_arg_0 ? var_95_arg_1 : var_95_arg_2 [L377] SORT_3 var_95 = var_95_arg_0 ? var_95_arg_1 : var_95_arg_2; [L378] SORT_1 var_99_arg_0 = var_98; [L379] SORT_3 var_99_arg_1 = state_96; [L380] SORT_3 var_99_arg_2 = var_95; [L381] EXPR var_99_arg_0 ? var_99_arg_1 : var_99_arg_2 [L381] SORT_3 var_99 = var_99_arg_0 ? var_99_arg_1 : var_99_arg_2; [L382] var_99 = var_99 & mask_SORT_3 [L383] SORT_3 var_129_arg_0 = state_128; [L384] SORT_3 var_129_arg_1 = var_99; [L385] SORT_1 var_129 = var_129_arg_0 == var_129_arg_1; [L386] SORT_1 var_130_arg_0 = var_127; [L387] SORT_1 var_130_arg_1 = var_129; [L388] SORT_1 var_130 = var_130_arg_0 | var_130_arg_1; [L389] SORT_1 var_151_arg_0 = state_132; [L390] SORT_1 var_151_arg_1 = input_150; [L391] SORT_1 var_151_arg_2 = var_130; [L392] EXPR var_151_arg_0 ? var_151_arg_1 : var_151_arg_2 [L392] SORT_1 var_151 = var_151_arg_0 ? var_151_arg_1 : var_151_arg_2; [L393] SORT_1 var_154_arg_0 = var_151; [L394] SORT_1 var_154 = ~var_154_arg_0; [L395] SORT_1 var_155_arg_0 = var_153; [L396] SORT_1 var_155_arg_1 = var_154; [L397] SORT_1 var_155 = var_155_arg_0 & var_155_arg_1; [L398] var_155 = var_155 & mask_SORT_1 [L399] SORT_1 bad_156_arg_0 = var_155; [L400] CALL __VERIFIER_assert(!(bad_156_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 80.5s, OverallIterations: 2, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 3.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 30 SdHoareTripleChecker+Invalid, 3.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 19 IncrementalHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 11 mSDtfsCounter, 19 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=1, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 37.3s SatisfiabilityAnalysisTime, 4.7s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 6/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-03 04:01:27,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w8_d16_e0.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 56242a343b58fcab63222095f27f2f143208822ccdb75f49250184d112358ec8 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 04:01:30,231 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 04:01:30,234 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 04:01:30,293 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 04:01:30,293 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 04:01:30,298 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 04:01:30,302 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 04:01:30,307 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 04:01:30,315 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 04:01:30,324 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 04:01:30,325 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 04:01:30,327 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 04:01:30,328 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 04:01:30,331 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 04:01:30,332 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 04:01:30,334 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 04:01:30,337 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 04:01:30,338 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 04:01:30,340 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 04:01:30,349 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 04:01:30,352 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 04:01:30,355 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 04:01:30,358 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 04:01:30,361 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 04:01:30,368 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 04:01:30,372 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 04:01:30,372 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 04:01:30,375 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 04:01:30,375 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 04:01:30,377 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 04:01:30,377 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 04:01:30,378 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 04:01:30,380 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 04:01:30,382 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 04:01:30,383 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 04:01:30,384 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 04:01:30,385 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 04:01:30,385 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 04:01:30,386 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 04:01:30,388 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 04:01:30,389 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 04:01:30,395 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-03 04:01:30,442 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 04:01:30,443 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 04:01:30,444 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 04:01:30,445 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 04:01:30,446 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 04:01:30,446 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 04:01:30,447 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 04:01:30,447 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 04:01:30,447 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 04:01:30,448 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 04:01:30,449 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 04:01:30,450 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 04:01:30,451 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 04:01:30,452 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 04:01:30,452 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 04:01:30,452 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 04:01:30,453 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 04:01:30,453 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-03 04:01:30,453 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-03 04:01:30,454 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-03 04:01:30,454 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 04:01:30,455 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 04:01:30,455 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 04:01:30,455 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 04:01:30,456 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-03 04:01:30,456 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 04:01:30,456 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:01:30,457 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 04:01:30,457 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 04:01:30,457 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 04:01:30,457 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-03 04:01:30,458 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-03 04:01:30,458 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 04:01:30,459 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 04:01:30,459 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-03 04:01:30,460 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 56242a343b58fcab63222095f27f2f143208822ccdb75f49250184d112358ec8 [2022-11-03 04:01:30,927 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 04:01:30,962 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 04:01:30,968 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 04:01:30,969 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 04:01:30,970 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 04:01:30,973 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w8_d16_e0.c [2022-11-03 04:01:31,067 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/data/6d2eba5c2/aee8ffb233cd456db034342dd259a9af/FLAGf7002caee [2022-11-03 04:01:31,825 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 04:01:31,825 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w8_d16_e0.c [2022-11-03 04:01:31,841 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/data/6d2eba5c2/aee8ffb233cd456db034342dd259a9af/FLAGf7002caee [2022-11-03 04:01:32,073 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/data/6d2eba5c2/aee8ffb233cd456db034342dd259a9af [2022-11-03 04:01:32,076 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 04:01:32,078 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 04:01:32,080 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 04:01:32,080 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 04:01:32,085 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 04:01:32,086 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:01:32" (1/1) ... [2022-11-03 04:01:32,087 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ea81f18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:01:32, skipping insertion in model container [2022-11-03 04:01:32,088 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:01:32" (1/1) ... [2022-11-03 04:01:32,097 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 04:01:32,169 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 04:01:32,434 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w8_d16_e0.c[1116,1129] [2022-11-03 04:01:32,748 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:01:32,752 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 04:01:32,766 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w8_d16_e0.c[1116,1129] [2022-11-03 04:01:32,933 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:01:32,985 INFO L208 MainTranslator]: Completed translation [2022-11-03 04:01:32,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:01:32 WrapperNode [2022-11-03 04:01:32,985 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 04:01:32,986 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 04:01:32,987 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 04:01:32,987 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 04:01:32,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:01:32" (1/1) ... [2022-11-03 04:01:33,019 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:01:32" (1/1) ... [2022-11-03 04:01:33,079 INFO L138 Inliner]: procedures = 11, calls = 6, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1142 [2022-11-03 04:01:33,080 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 04:01:33,080 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 04:01:33,080 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 04:01:33,081 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 04:01:33,090 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:01:32" (1/1) ... [2022-11-03 04:01:33,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:01:32" (1/1) ... [2022-11-03 04:01:33,101 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:01:32" (1/1) ... [2022-11-03 04:01:33,101 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:01:32" (1/1) ... [2022-11-03 04:01:33,137 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:01:32" (1/1) ... [2022-11-03 04:01:33,145 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:01:32" (1/1) ... [2022-11-03 04:01:33,150 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:01:32" (1/1) ... [2022-11-03 04:01:33,154 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:01:32" (1/1) ... [2022-11-03 04:01:33,168 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 04:01:33,174 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 04:01:33,187 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 04:01:33,187 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 04:01:33,190 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:01:32" (1/1) ... [2022-11-03 04:01:33,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:01:33,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:01:33,224 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 04:01:33,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 04:01:33,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 04:01:33,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 04:01:33,275 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 04:01:33,275 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 04:01:33,676 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 04:01:33,679 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 04:01:34,826 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 04:01:34,836 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 04:01:34,836 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 04:01:34,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:01:34 BoogieIcfgContainer [2022-11-03 04:01:34,839 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 04:01:34,841 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 04:01:34,841 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 04:01:34,844 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 04:01:34,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:01:32" (1/3) ... [2022-11-03 04:01:34,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58e98b78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:01:34, skipping insertion in model container [2022-11-03 04:01:34,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:01:32" (2/3) ... [2022-11-03 04:01:34,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58e98b78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:01:34, skipping insertion in model container [2022-11-03 04:01:34,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:01:34" (3/3) ... [2022-11-03 04:01:34,848 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.circular_pointer_top_w8_d16_e0.c [2022-11-03 04:01:34,867 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 04:01:34,867 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 04:01:34,932 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 04:01:34,939 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@42c1f0fd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 04:01:34,948 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 04:01:34,957 INFO L276 IsEmpty]: Start isEmpty. Operand has 155 states, 149 states have (on average 1.483221476510067) internal successors, (221), 150 states have internal predecessors, (221), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 04:01:34,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 04:01:34,969 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:01:34,970 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:01:34,971 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:01:34,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:01:34,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1063607004, now seen corresponding path program 1 times [2022-11-03 04:01:34,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:01:35,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [128762914] [2022-11-03 04:01:35,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:01:35,001 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:01:35,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:01:35,006 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:01:35,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-03 04:01:35,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:01:35,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-03 04:01:35,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:01:35,498 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-03 04:01:35,498 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:01:35,499 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:01:35,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [128762914] [2022-11-03 04:01:35,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [128762914] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:01:35,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:01:35,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 04:01:35,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837266819] [2022-11-03 04:01:35,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:01:35,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 04:01:35,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:01:35,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 04:01:35,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 04:01:35,557 INFO L87 Difference]: Start difference. First operand has 155 states, 149 states have (on average 1.483221476510067) internal successors, (221), 150 states have internal predecessors, (221), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-03 04:01:35,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:01:35,616 INFO L93 Difference]: Finished difference Result 304 states and 452 transitions. [2022-11-03 04:01:35,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 04:01:35,619 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 63 [2022-11-03 04:01:35,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:01:35,631 INFO L225 Difference]: With dead ends: 304 [2022-11-03 04:01:35,631 INFO L226 Difference]: Without dead ends: 151 [2022-11-03 04:01:35,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 04:01:35,641 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 04:01:35,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 04:01:35,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2022-11-03 04:01:35,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2022-11-03 04:01:35,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 146 states have (on average 1.4657534246575343) internal successors, (214), 146 states have internal predecessors, (214), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 04:01:35,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 220 transitions. [2022-11-03 04:01:35,718 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 220 transitions. Word has length 63 [2022-11-03 04:01:35,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:01:35,719 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 220 transitions. [2022-11-03 04:01:35,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-03 04:01:35,721 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 220 transitions. [2022-11-03 04:01:35,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 04:01:35,727 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:01:35,728 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:01:35,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-03 04:01:35,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:01:35,942 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:01:35,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:01:35,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1458232482, now seen corresponding path program 1 times [2022-11-03 04:01:35,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:01:35,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1022080310] [2022-11-03 04:01:35,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:01:35,944 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:01:35,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:01:35,945 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:01:35,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-03 04:01:36,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:01:36,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 04:01:36,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:01:36,680 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 04:01:36,680 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:01:36,680 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:01:36,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1022080310] [2022-11-03 04:01:36,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1022080310] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:01:36,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:01:36,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:01:36,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365471898] [2022-11-03 04:01:36,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:01:36,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:01:36,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:01:36,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:01:36,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:01:36,685 INFO L87 Difference]: Start difference. First operand 151 states and 220 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:01:37,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:01:37,080 INFO L93 Difference]: Finished difference Result 600 states and 881 transitions. [2022-11-03 04:01:37,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:01:37,081 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 63 [2022-11-03 04:01:37,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:01:37,084 INFO L225 Difference]: With dead ends: 600 [2022-11-03 04:01:37,084 INFO L226 Difference]: Without dead ends: 451 [2022-11-03 04:01:37,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:01:37,087 INFO L413 NwaCegarLoop]: 243 mSDtfsCounter, 1411 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1411 SdHoareTripleChecker+Valid, 914 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:01:37,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1411 Valid, 914 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:01:37,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2022-11-03 04:01:37,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 153. [2022-11-03 04:01:37,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 148 states have (on average 1.4594594594594594) internal successors, (216), 148 states have internal predecessors, (216), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 04:01:37,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 222 transitions. [2022-11-03 04:01:37,120 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 222 transitions. Word has length 63 [2022-11-03 04:01:37,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:01:37,121 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 222 transitions. [2022-11-03 04:01:37,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:01:37,121 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 222 transitions. [2022-11-03 04:01:37,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 04:01:37,122 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:01:37,122 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:01:37,135 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-11-03 04:01:37,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:01:37,323 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:01:37,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:01:37,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1852599268, now seen corresponding path program 1 times [2022-11-03 04:01:37,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:01:37,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1068498472] [2022-11-03 04:01:37,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:01:37,326 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:01:37,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:01:37,327 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:01:37,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-03 04:01:37,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:01:37,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 04:01:37,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:01:37,864 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 04:01:37,864 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:01:37,865 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:01:37,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1068498472] [2022-11-03 04:01:37,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1068498472] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:01:37,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:01:37,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:01:37,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890531625] [2022-11-03 04:01:37,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:01:37,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:01:37,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:01:37,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:01:37,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:01:37,872 INFO L87 Difference]: Start difference. First operand 153 states and 222 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:01:38,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:01:38,186 INFO L93 Difference]: Finished difference Result 606 states and 887 transitions. [2022-11-03 04:01:38,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:01:38,187 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 63 [2022-11-03 04:01:38,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:01:38,189 INFO L225 Difference]: With dead ends: 606 [2022-11-03 04:01:38,189 INFO L226 Difference]: Without dead ends: 455 [2022-11-03 04:01:38,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:01:38,191 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 1411 mSDsluCounter, 660 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1411 SdHoareTripleChecker+Valid, 901 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:01:38,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1411 Valid, 901 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:01:38,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2022-11-03 04:01:38,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 157. [2022-11-03 04:01:38,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 152 states have (on average 1.4539473684210527) internal successors, (221), 152 states have internal predecessors, (221), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 04:01:38,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 227 transitions. [2022-11-03 04:01:38,207 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 227 transitions. Word has length 63 [2022-11-03 04:01:38,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:01:38,207 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 227 transitions. [2022-11-03 04:01:38,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:01:38,208 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 227 transitions. [2022-11-03 04:01:38,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 04:01:38,208 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:01:38,209 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:01:38,228 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-03 04:01:38,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:01:38,422 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:01:38,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:01:38,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1577839654, now seen corresponding path program 1 times [2022-11-03 04:01:38,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:01:38,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1509415380] [2022-11-03 04:01:38,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:01:38,424 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:01:38,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:01:38,428 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:01:38,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-03 04:01:38,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:01:38,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 04:01:38,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:01:38,952 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 04:01:38,953 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:01:38,953 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:01:38,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1509415380] [2022-11-03 04:01:38,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1509415380] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:01:38,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:01:38,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:01:38,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929441130] [2022-11-03 04:01:38,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:01:38,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:01:38,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:01:38,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:01:38,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:01:38,956 INFO L87 Difference]: Start difference. First operand 157 states and 227 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:01:39,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:01:39,273 INFO L93 Difference]: Finished difference Result 612 states and 893 transitions. [2022-11-03 04:01:39,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:01:39,273 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 63 [2022-11-03 04:01:39,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:01:39,276 INFO L225 Difference]: With dead ends: 612 [2022-11-03 04:01:39,276 INFO L226 Difference]: Without dead ends: 457 [2022-11-03 04:01:39,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:01:39,278 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 1414 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1414 SdHoareTripleChecker+Valid, 910 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:01:39,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1414 Valid, 910 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:01:39,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2022-11-03 04:01:39,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 159. [2022-11-03 04:01:39,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 154 states have (on average 1.448051948051948) internal successors, (223), 154 states have internal predecessors, (223), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 04:01:39,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 229 transitions. [2022-11-03 04:01:39,308 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 229 transitions. Word has length 63 [2022-11-03 04:01:39,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:01:39,309 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 229 transitions. [2022-11-03 04:01:39,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:01:39,310 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 229 transitions. [2022-11-03 04:01:39,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 04:01:39,312 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:01:39,312 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:01:39,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-03 04:01:39,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:01:39,532 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:01:39,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:01:39,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1555207400, now seen corresponding path program 1 times [2022-11-03 04:01:39,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:01:39,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2019063022] [2022-11-03 04:01:39,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:01:39,534 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:01:39,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:01:39,535 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:01:39,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-03 04:01:39,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:01:39,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 04:01:39,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:01:40,005 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 04:01:40,005 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:01:40,005 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:01:40,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2019063022] [2022-11-03 04:01:40,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2019063022] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:01:40,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:01:40,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:01:40,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830324567] [2022-11-03 04:01:40,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:01:40,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:01:40,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:01:40,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:01:40,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:01:40,008 INFO L87 Difference]: Start difference. First operand 159 states and 229 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:01:40,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:01:40,304 INFO L93 Difference]: Finished difference Result 616 states and 896 transitions. [2022-11-03 04:01:40,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:01:40,305 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 63 [2022-11-03 04:01:40,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:01:40,307 INFO L225 Difference]: With dead ends: 616 [2022-11-03 04:01:40,307 INFO L226 Difference]: Without dead ends: 459 [2022-11-03 04:01:40,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:01:40,309 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 1391 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1391 SdHoareTripleChecker+Valid, 924 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:01:40,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1391 Valid, 924 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:01:40,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2022-11-03 04:01:40,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 161. [2022-11-03 04:01:40,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 156 states have (on average 1.4423076923076923) internal successors, (225), 156 states have internal predecessors, (225), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 04:01:40,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 231 transitions. [2022-11-03 04:01:40,341 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 231 transitions. Word has length 63 [2022-11-03 04:01:40,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:01:40,342 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 231 transitions. [2022-11-03 04:01:40,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:01:40,342 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 231 transitions. [2022-11-03 04:01:40,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 04:01:40,343 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:01:40,343 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:01:40,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-03 04:01:40,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:01:40,552 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:01:40,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:01:40,552 INFO L85 PathProgramCache]: Analyzing trace with hash -2064680490, now seen corresponding path program 1 times [2022-11-03 04:01:40,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:01:40,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1687727121] [2022-11-03 04:01:40,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:01:40,553 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:01:40,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:01:40,554 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:01:40,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-03 04:01:40,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:01:40,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 04:01:40,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:01:41,029 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 04:01:41,029 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:01:41,029 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:01:41,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1687727121] [2022-11-03 04:01:41,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1687727121] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:01:41,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:01:41,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:01:41,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091748624] [2022-11-03 04:01:41,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:01:41,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:01:41,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:01:41,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:01:41,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:01:41,032 INFO L87 Difference]: Start difference. First operand 161 states and 231 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:01:41,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:01:41,388 INFO L93 Difference]: Finished difference Result 620 states and 899 transitions. [2022-11-03 04:01:41,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:01:41,389 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 63 [2022-11-03 04:01:41,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:01:41,391 INFO L225 Difference]: With dead ends: 620 [2022-11-03 04:01:41,391 INFO L226 Difference]: Without dead ends: 461 [2022-11-03 04:01:41,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:01:41,396 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 1394 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1394 SdHoareTripleChecker+Valid, 904 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:01:41,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1394 Valid, 904 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:01:41,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2022-11-03 04:01:41,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 163. [2022-11-03 04:01:41,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 158 states have (on average 1.4367088607594938) internal successors, (227), 158 states have internal predecessors, (227), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 04:01:41,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 233 transitions. [2022-11-03 04:01:41,413 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 233 transitions. Word has length 63 [2022-11-03 04:01:41,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:01:41,416 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 233 transitions. [2022-11-03 04:01:41,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:01:41,416 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 233 transitions. [2022-11-03 04:01:41,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 04:01:41,417 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:01:41,417 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:01:41,430 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-03 04:01:41,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:01:41,630 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:01:41,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:01:41,631 INFO L85 PathProgramCache]: Analyzing trace with hash -2002640876, now seen corresponding path program 1 times [2022-11-03 04:01:41,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:01:41,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2066337502] [2022-11-03 04:01:41,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:01:41,632 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:01:41,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:01:41,632 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:01:41,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-03 04:01:41,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:01:41,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 04:01:41,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:01:42,079 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 04:01:42,080 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:01:42,080 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:01:42,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2066337502] [2022-11-03 04:01:42,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2066337502] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:01:42,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:01:42,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:01:42,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699784476] [2022-11-03 04:01:42,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:01:42,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:01:42,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:01:42,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:01:42,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:01:42,083 INFO L87 Difference]: Start difference. First operand 163 states and 233 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:01:42,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:01:42,428 INFO L93 Difference]: Finished difference Result 624 states and 902 transitions. [2022-11-03 04:01:42,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:01:42,429 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 63 [2022-11-03 04:01:42,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:01:42,431 INFO L225 Difference]: With dead ends: 624 [2022-11-03 04:01:42,432 INFO L226 Difference]: Without dead ends: 463 [2022-11-03 04:01:42,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:01:42,433 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 1387 mSDsluCounter, 665 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1387 SdHoareTripleChecker+Valid, 918 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:01:42,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1387 Valid, 918 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:01:42,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2022-11-03 04:01:42,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 165. [2022-11-03 04:01:42,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 160 states have (on average 1.43125) internal successors, (229), 160 states have internal predecessors, (229), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 04:01:42,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 235 transitions. [2022-11-03 04:01:42,453 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 235 transitions. Word has length 63 [2022-11-03 04:01:42,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:01:42,454 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 235 transitions. [2022-11-03 04:01:42,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:01:42,454 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 235 transitions. [2022-11-03 04:01:42,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 04:01:42,455 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:01:42,456 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:01:42,474 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2022-11-03 04:01:42,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:01:42,670 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:01:42,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:01:42,670 INFO L85 PathProgramCache]: Analyzing trace with hash -2136654382, now seen corresponding path program 1 times [2022-11-03 04:01:42,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:01:42,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [262550264] [2022-11-03 04:01:42,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:01:42,672 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:01:42,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:01:42,673 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:01:42,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-03 04:01:42,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:01:42,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 04:01:42,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:01:43,134 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 04:01:43,135 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:01:43,135 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:01:43,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [262550264] [2022-11-03 04:01:43,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [262550264] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:01:43,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:01:43,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:01:43,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712755658] [2022-11-03 04:01:43,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:01:43,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:01:43,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:01:43,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:01:43,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:01:43,137 INFO L87 Difference]: Start difference. First operand 165 states and 235 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:01:43,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:01:43,418 INFO L93 Difference]: Finished difference Result 628 states and 905 transitions. [2022-11-03 04:01:43,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:01:43,419 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 63 [2022-11-03 04:01:43,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:01:43,423 INFO L225 Difference]: With dead ends: 628 [2022-11-03 04:01:43,423 INFO L226 Difference]: Without dead ends: 465 [2022-11-03 04:01:43,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:01:43,424 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 1380 mSDsluCounter, 688 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1380 SdHoareTripleChecker+Valid, 951 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:01:43,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1380 Valid, 951 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:01:43,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2022-11-03 04:01:43,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 167. [2022-11-03 04:01:43,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 162 states have (on average 1.4259259259259258) internal successors, (231), 162 states have internal predecessors, (231), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 04:01:43,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 237 transitions. [2022-11-03 04:01:43,443 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 237 transitions. Word has length 63 [2022-11-03 04:01:43,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:01:43,444 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 237 transitions. [2022-11-03 04:01:43,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:01:43,444 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 237 transitions. [2022-11-03 04:01:43,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 04:01:43,458 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:01:43,458 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:01:43,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-03 04:01:43,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:01:43,663 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:01:43,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:01:43,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1917799664, now seen corresponding path program 1 times [2022-11-03 04:01:43,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:01:43,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1013205729] [2022-11-03 04:01:43,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:01:43,665 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:01:43,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:01:43,666 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:01:43,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-03 04:01:43,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:01:43,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 04:01:43,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:01:44,140 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 04:01:44,140 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:01:44,140 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:01:44,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1013205729] [2022-11-03 04:01:44,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1013205729] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:01:44,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:01:44,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:01:44,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986498100] [2022-11-03 04:01:44,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:01:44,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:01:44,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:01:44,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:01:44,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:01:44,144 INFO L87 Difference]: Start difference. First operand 167 states and 237 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:01:44,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:01:44,461 INFO L93 Difference]: Finished difference Result 632 states and 908 transitions. [2022-11-03 04:01:44,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:01:44,462 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 63 [2022-11-03 04:01:44,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:01:44,464 INFO L225 Difference]: With dead ends: 632 [2022-11-03 04:01:44,464 INFO L226 Difference]: Without dead ends: 467 [2022-11-03 04:01:44,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:01:44,466 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 1375 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1375 SdHoareTripleChecker+Valid, 940 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:01:44,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1375 Valid, 940 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:01:44,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2022-11-03 04:01:44,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 169. [2022-11-03 04:01:44,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 1.420731707317073) internal successors, (233), 164 states have internal predecessors, (233), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 04:01:44,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 239 transitions. [2022-11-03 04:01:44,491 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 239 transitions. Word has length 63 [2022-11-03 04:01:44,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:01:44,491 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 239 transitions. [2022-11-03 04:01:44,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:01:44,491 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 239 transitions. [2022-11-03 04:01:44,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 04:01:44,492 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:01:44,493 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:01:44,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-03 04:01:44,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:01:44,707 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:01:44,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:01:44,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1559519182, now seen corresponding path program 1 times [2022-11-03 04:01:44,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:01:44,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [554691185] [2022-11-03 04:01:44,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:01:44,708 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:01:44,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:01:44,709 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:01:44,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-03 04:01:45,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:01:45,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 04:01:45,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:01:45,174 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 04:01:45,174 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:01:45,174 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:01:45,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [554691185] [2022-11-03 04:01:45,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [554691185] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:01:45,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:01:45,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:01:45,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678433584] [2022-11-03 04:01:45,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:01:45,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:01:45,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:01:45,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:01:45,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:01:45,177 INFO L87 Difference]: Start difference. First operand 169 states and 239 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:01:45,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:01:45,454 INFO L93 Difference]: Finished difference Result 636 states and 911 transitions. [2022-11-03 04:01:45,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:01:45,456 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 63 [2022-11-03 04:01:45,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:01:45,458 INFO L225 Difference]: With dead ends: 636 [2022-11-03 04:01:45,458 INFO L226 Difference]: Without dead ends: 469 [2022-11-03 04:01:45,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:01:45,460 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 1366 mSDsluCounter, 680 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1366 SdHoareTripleChecker+Valid, 950 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:01:45,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1366 Valid, 950 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:01:45,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2022-11-03 04:01:45,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 171. [2022-11-03 04:01:45,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 166 states have (on average 1.4156626506024097) internal successors, (235), 166 states have internal predecessors, (235), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 04:01:45,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 241 transitions. [2022-11-03 04:01:45,477 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 241 transitions. Word has length 63 [2022-11-03 04:01:45,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:01:45,479 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 241 transitions. [2022-11-03 04:01:45,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:01:45,479 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 241 transitions. [2022-11-03 04:01:45,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 04:01:45,481 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:01:45,481 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:01:45,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-03 04:01:45,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:01:45,695 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:01:45,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:01:45,696 INFO L85 PathProgramCache]: Analyzing trace with hash -434625524, now seen corresponding path program 1 times [2022-11-03 04:01:45,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:01:45,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [883817280] [2022-11-03 04:01:45,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:01:45,696 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:01:45,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:01:45,697 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:01:45,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-03 04:01:45,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:01:45,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 04:01:45,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:01:46,144 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 04:01:46,145 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:01:46,145 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:01:46,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [883817280] [2022-11-03 04:01:46,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [883817280] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:01:46,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:01:46,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:01:46,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197943089] [2022-11-03 04:01:46,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:01:46,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:01:46,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:01:46,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:01:46,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:01:46,147 INFO L87 Difference]: Start difference. First operand 171 states and 241 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:01:46,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:01:46,422 INFO L93 Difference]: Finished difference Result 642 states and 917 transitions. [2022-11-03 04:01:46,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:01:46,422 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 63 [2022-11-03 04:01:46,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:01:46,425 INFO L225 Difference]: With dead ends: 642 [2022-11-03 04:01:46,425 INFO L226 Difference]: Without dead ends: 473 [2022-11-03 04:01:46,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:01:46,426 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 1361 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1361 SdHoareTripleChecker+Valid, 944 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:01:46,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1361 Valid, 944 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:01:46,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2022-11-03 04:01:46,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 175. [2022-11-03 04:01:46,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 170 states have (on average 1.411764705882353) internal successors, (240), 170 states have internal predecessors, (240), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 04:01:46,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 246 transitions. [2022-11-03 04:01:46,441 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 246 transitions. Word has length 63 [2022-11-03 04:01:46,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:01:46,442 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 246 transitions. [2022-11-03 04:01:46,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:01:46,442 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 246 transitions. [2022-11-03 04:01:46,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 04:01:46,443 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:01:46,443 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:01:46,456 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-03 04:01:46,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:01:46,656 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:01:46,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:01:46,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1445742774, now seen corresponding path program 1 times [2022-11-03 04:01:46,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:01:46,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1640486079] [2022-11-03 04:01:46,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:01:46,657 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:01:46,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:01:46,658 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:01:46,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-03 04:01:46,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:01:46,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 04:01:46,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:01:47,104 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 04:01:47,105 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:01:47,105 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:01:47,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1640486079] [2022-11-03 04:01:47,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1640486079] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:01:47,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:01:47,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:01:47,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209472841] [2022-11-03 04:01:47,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:01:47,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:01:47,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:01:47,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:01:47,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:01:47,107 INFO L87 Difference]: Start difference. First operand 175 states and 246 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:01:47,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:01:47,388 INFO L93 Difference]: Finished difference Result 648 states and 923 transitions. [2022-11-03 04:01:47,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:01:47,388 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 63 [2022-11-03 04:01:47,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:01:47,390 INFO L225 Difference]: With dead ends: 648 [2022-11-03 04:01:47,391 INFO L226 Difference]: Without dead ends: 475 [2022-11-03 04:01:47,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:01:47,392 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 1355 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1355 SdHoareTripleChecker+Valid, 954 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:01:47,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1355 Valid, 954 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:01:47,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2022-11-03 04:01:47,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 177. [2022-11-03 04:01:47,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 172 states have (on average 1.4069767441860466) internal successors, (242), 172 states have internal predecessors, (242), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 04:01:47,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 248 transitions. [2022-11-03 04:01:47,408 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 248 transitions. Word has length 63 [2022-11-03 04:01:47,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:01:47,409 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 248 transitions. [2022-11-03 04:01:47,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:01:47,409 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 248 transitions. [2022-11-03 04:01:47,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 04:01:47,410 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:01:47,410 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:01:47,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-03 04:01:47,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:01:47,628 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:01:47,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:01:47,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1187577336, now seen corresponding path program 1 times [2022-11-03 04:01:47,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:01:47,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [850130865] [2022-11-03 04:01:47,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:01:47,629 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:01:47,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:01:47,630 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:01:47,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-03 04:01:47,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:01:47,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 04:01:47,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:01:48,127 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 04:01:48,128 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:01:48,128 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:01:48,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [850130865] [2022-11-03 04:01:48,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [850130865] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:01:48,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:01:48,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:01:48,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707932943] [2022-11-03 04:01:48,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:01:48,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:01:48,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:01:48,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:01:48,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:01:48,130 INFO L87 Difference]: Start difference. First operand 177 states and 248 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:01:48,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:01:48,385 INFO L93 Difference]: Finished difference Result 652 states and 926 transitions. [2022-11-03 04:01:48,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:01:48,386 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 63 [2022-11-03 04:01:48,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:01:48,388 INFO L225 Difference]: With dead ends: 652 [2022-11-03 04:01:48,388 INFO L226 Difference]: Without dead ends: 477 [2022-11-03 04:01:48,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:01:48,390 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 1346 mSDsluCounter, 686 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1346 SdHoareTripleChecker+Valid, 970 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:01:48,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1346 Valid, 970 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:01:48,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2022-11-03 04:01:48,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 179. [2022-11-03 04:01:48,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 174 states have (on average 1.4022988505747127) internal successors, (244), 174 states have internal predecessors, (244), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 04:01:48,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 250 transitions. [2022-11-03 04:01:48,406 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 250 transitions. Word has length 63 [2022-11-03 04:01:48,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:01:48,406 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 250 transitions. [2022-11-03 04:01:48,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:01:48,407 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 250 transitions. [2022-11-03 04:01:48,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 04:01:48,408 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:01:48,408 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:01:48,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-03 04:01:48,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:01:48,621 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:01:48,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:01:48,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1580604346, now seen corresponding path program 1 times [2022-11-03 04:01:48,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:01:48,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1256640162] [2022-11-03 04:01:48,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:01:48,623 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:01:48,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:01:48,624 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:01:48,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-03 04:01:48,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:01:48,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 04:01:48,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:01:49,065 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 04:01:49,065 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:01:49,066 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:01:49,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1256640162] [2022-11-03 04:01:49,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1256640162] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:01:49,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:01:49,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:01:49,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043737623] [2022-11-03 04:01:49,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:01:49,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:01:49,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:01:49,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:01:49,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:01:49,068 INFO L87 Difference]: Start difference. First operand 179 states and 250 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:01:49,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:01:49,546 INFO L93 Difference]: Finished difference Result 656 states and 929 transitions. [2022-11-03 04:01:49,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:01:49,546 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 63 [2022-11-03 04:01:49,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:01:49,549 INFO L225 Difference]: With dead ends: 656 [2022-11-03 04:01:49,549 INFO L226 Difference]: Without dead ends: 479 [2022-11-03 04:01:49,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:01:49,551 INFO L413 NwaCegarLoop]: 257 mSDtfsCounter, 1337 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1337 SdHoareTripleChecker+Valid, 855 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:01:49,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1337 Valid, 855 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 04:01:49,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2022-11-03 04:01:49,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 181. [2022-11-03 04:01:49,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 176 states have (on average 1.3977272727272727) internal successors, (246), 176 states have internal predecessors, (246), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 04:01:49,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 252 transitions. [2022-11-03 04:01:49,582 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 252 transitions. Word has length 63 [2022-11-03 04:01:49,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:01:49,582 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 252 transitions. [2022-11-03 04:01:49,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:01:49,582 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 252 transitions. [2022-11-03 04:01:49,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 04:01:49,583 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:01:49,583 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:01:49,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-03 04:01:49,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:01:49,787 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:01:49,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:01:49,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1905016324, now seen corresponding path program 1 times [2022-11-03 04:01:49,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:01:49,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [734413264] [2022-11-03 04:01:49,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:01:49,788 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:01:49,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:01:49,792 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:01:49,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-03 04:01:50,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:01:50,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-03 04:01:50,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:01:50,240 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 04:01:50,241 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:01:50,241 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:01:50,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [734413264] [2022-11-03 04:01:50,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [734413264] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:01:50,241 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:01:50,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:01:50,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843693488] [2022-11-03 04:01:50,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:01:50,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:01:50,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:01:50,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:01:50,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:01:50,243 INFO L87 Difference]: Start difference. First operand 181 states and 252 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:01:50,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:01:50,724 INFO L93 Difference]: Finished difference Result 660 states and 932 transitions. [2022-11-03 04:01:50,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:01:50,725 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 63 [2022-11-03 04:01:50,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:01:50,728 INFO L225 Difference]: With dead ends: 660 [2022-11-03 04:01:50,728 INFO L226 Difference]: Without dead ends: 481 [2022-11-03 04:01:50,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:01:50,729 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 1329 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1329 SdHoareTripleChecker+Valid, 863 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:01:50,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1329 Valid, 863 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 04:01:50,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2022-11-03 04:01:50,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 183. [2022-11-03 04:01:50,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 178 states have (on average 1.3932584269662922) internal successors, (248), 178 states have internal predecessors, (248), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 04:01:50,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 254 transitions. [2022-11-03 04:01:50,747 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 254 transitions. Word has length 63 [2022-11-03 04:01:50,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:01:50,748 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 254 transitions. [2022-11-03 04:01:50,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:01:50,748 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 254 transitions. [2022-11-03 04:01:50,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 04:01:50,749 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:01:50,749 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:01:50,762 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-03 04:01:50,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:01:50,962 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:01:50,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:01:50,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1962274626, now seen corresponding path program 1 times [2022-11-03 04:01:50,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:01:50,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [899831296] [2022-11-03 04:01:50,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:01:50,963 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:01:50,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:01:50,965 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:01:50,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-03 04:01:51,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:01:51,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-03 04:01:51,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:01:51,498 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 04:01:51,498 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:01:51,499 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:01:51,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [899831296] [2022-11-03 04:01:51,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [899831296] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:01:51,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:01:51,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 04:01:51,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143889754] [2022-11-03 04:01:51,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:01:51,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 04:01:51,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:01:51,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 04:01:51,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 04:01:51,501 INFO L87 Difference]: Start difference. First operand 183 states and 254 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:01:51,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:01:51,939 INFO L93 Difference]: Finished difference Result 509 states and 697 transitions. [2022-11-03 04:01:51,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 04:01:51,940 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 63 [2022-11-03 04:01:51,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:01:51,943 INFO L225 Difference]: With dead ends: 509 [2022-11-03 04:01:51,943 INFO L226 Difference]: Without dead ends: 507 [2022-11-03 04:01:51,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-11-03 04:01:51,944 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 1243 mSDsluCounter, 701 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1243 SdHoareTripleChecker+Valid, 954 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:01:51,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1243 Valid, 954 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 04:01:51,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2022-11-03 04:01:51,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 255. [2022-11-03 04:01:51,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 250 states have (on average 1.364) internal successors, (341), 250 states have internal predecessors, (341), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 04:01:51,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 347 transitions. [2022-11-03 04:01:51,975 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 347 transitions. Word has length 63 [2022-11-03 04:01:51,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:01:51,975 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 347 transitions. [2022-11-03 04:01:51,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:01:51,976 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 347 transitions. [2022-11-03 04:01:51,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 04:01:51,977 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:01:51,977 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:01:51,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-11-03 04:01:52,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:01:52,191 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:01:52,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:01:52,192 INFO L85 PathProgramCache]: Analyzing trace with hash -2084546176, now seen corresponding path program 1 times [2022-11-03 04:01:52,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:01:52,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1939842936] [2022-11-03 04:01:52,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:01:52,193 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:01:52,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:01:52,194 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:01:52,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-11-03 04:01:52,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:01:52,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-03 04:01:52,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:01:52,506 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 04:01:52,506 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:01:52,506 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:01:52,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1939842936] [2022-11-03 04:01:52,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1939842936] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:01:52,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:01:52,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:01:52,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894477770] [2022-11-03 04:01:52,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:01:52,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:01:52,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:01:52,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:01:52,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:01:52,509 INFO L87 Difference]: Start difference. First operand 255 states and 347 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:01:52,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:01:52,580 INFO L93 Difference]: Finished difference Result 690 states and 949 transitions. [2022-11-03 04:01:52,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 04:01:52,581 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 63 [2022-11-03 04:01:52,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:01:52,583 INFO L225 Difference]: With dead ends: 690 [2022-11-03 04:01:52,583 INFO L226 Difference]: Without dead ends: 437 [2022-11-03 04:01:52,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:01:52,584 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 407 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 04:01:52,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 671 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 04:01:52,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2022-11-03 04:01:52,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 263. [2022-11-03 04:01:52,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 255 states have (on average 1.3568627450980393) internal successors, (346), 255 states have internal predecessors, (346), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 04:01:52,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 358 transitions. [2022-11-03 04:01:52,617 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 358 transitions. Word has length 63 [2022-11-03 04:01:52,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:01:52,617 INFO L495 AbstractCegarLoop]: Abstraction has 263 states and 358 transitions. [2022-11-03 04:01:52,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:01:52,617 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 358 transitions. [2022-11-03 04:01:52,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:01:52,620 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:01:52,620 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:01:52,638 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-11-03 04:01:52,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:01:52,833 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:01:52,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:01:52,834 INFO L85 PathProgramCache]: Analyzing trace with hash 84546769, now seen corresponding path program 1 times [2022-11-03 04:01:52,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:01:52,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1541396733] [2022-11-03 04:01:52,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:01:52,835 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:01:52,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:01:52,837 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:01:52,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-11-03 04:01:53,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:01:53,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:01:53,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:01:53,561 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-03 04:01:53,561 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:01:53,905 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 48 proven. 15 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-03 04:01:53,905 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:01:53,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1541396733] [2022-11-03 04:01:53,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1541396733] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:01:53,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1165146655] [2022-11-03 04:01:53,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:01:53,906 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:01:53,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:01:53,911 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:01:53,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2022-11-03 04:01:54,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:01:54,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 04:01:54,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:01:54,815 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:01:54,815 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:01:54,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1165146655] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:01:54,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:01:54,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 14 [2022-11-03 04:01:54,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398584857] [2022-11-03 04:01:54,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:01:54,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:01:54,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:01:54,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:01:54,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-03 04:01:54,818 INFO L87 Difference]: Start difference. First operand 263 states and 358 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:01:55,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:01:55,075 INFO L93 Difference]: Finished difference Result 1151 states and 1560 transitions. [2022-11-03 04:01:55,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:01:55,076 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:01:55,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:01:55,079 INFO L225 Difference]: With dead ends: 1151 [2022-11-03 04:01:55,079 INFO L226 Difference]: Without dead ends: 898 [2022-11-03 04:01:55,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 638 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2022-11-03 04:01:55,081 INFO L413 NwaCegarLoop]: 266 mSDtfsCounter, 967 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 970 SdHoareTripleChecker+Valid, 853 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:01:55,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [970 Valid, 853 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:01:55,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2022-11-03 04:01:55,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 411. [2022-11-03 04:01:55,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 403 states have (on average 1.3349875930521091) internal successors, (538), 403 states have internal predecessors, (538), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 04:01:55,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 550 transitions. [2022-11-03 04:01:55,118 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 550 transitions. Word has length 218 [2022-11-03 04:01:55,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:01:55,119 INFO L495 AbstractCegarLoop]: Abstraction has 411 states and 550 transitions. [2022-11-03 04:01:55,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:01:55,119 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 550 transitions. [2022-11-03 04:01:55,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:01:55,122 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:01:55,122 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:01:55,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-11-03 04:01:55,344 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2022-11-03 04:01:55,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 04:01:55,540 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:01:55,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:01:55,541 INFO L85 PathProgramCache]: Analyzing trace with hash -301315633, now seen corresponding path program 1 times [2022-11-03 04:01:55,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:01:55,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [115352039] [2022-11-03 04:01:55,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:01:55,542 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:01:55,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:01:55,543 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:01:55,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-11-03 04:01:56,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:01:56,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 04:01:56,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:01:56,645 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:01:56,646 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:01:56,646 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:01:56,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [115352039] [2022-11-03 04:01:56,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [115352039] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:01:56,647 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:01:56,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:01:56,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735625600] [2022-11-03 04:01:56,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:01:56,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:01:56,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:01:56,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:01:56,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:01:56,650 INFO L87 Difference]: Start difference. First operand 411 states and 550 transitions. Second operand has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:01:57,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:01:57,043 INFO L93 Difference]: Finished difference Result 1749 states and 2338 transitions. [2022-11-03 04:01:57,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:01:57,044 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:01:57,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:01:57,050 INFO L225 Difference]: With dead ends: 1749 [2022-11-03 04:01:57,050 INFO L226 Difference]: Without dead ends: 1348 [2022-11-03 04:01:57,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:01:57,052 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 619 mSDsluCounter, 1050 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 1322 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 82 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:01:57,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [622 Valid, 1322 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 148 Invalid, 0 Unknown, 82 Unchecked, 0.3s Time] [2022-11-03 04:01:57,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1348 states. [2022-11-03 04:01:57,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1348 to 571. [2022-11-03 04:01:57,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 563 states have (on average 1.325044404973357) internal successors, (746), 563 states have internal predecessors, (746), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 04:01:57,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 758 transitions. [2022-11-03 04:01:57,096 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 758 transitions. Word has length 218 [2022-11-03 04:01:57,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:01:57,097 INFO L495 AbstractCegarLoop]: Abstraction has 571 states and 758 transitions. [2022-11-03 04:01:57,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:01:57,097 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 758 transitions. [2022-11-03 04:01:57,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:01:57,102 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:01:57,102 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:01:57,127 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-11-03 04:01:57,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:01:57,317 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:01:57,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:01:57,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1629810001, now seen corresponding path program 1 times [2022-11-03 04:01:57,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:01:57,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [730286265] [2022-11-03 04:01:57,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:01:57,319 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:01:57,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:01:57,320 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:01:57,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-11-03 04:01:57,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:01:57,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 04:01:57,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:01:58,438 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:01:58,438 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:01:58,438 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:01:58,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [730286265] [2022-11-03 04:01:58,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [730286265] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:01:58,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:01:58,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:01:58,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360720363] [2022-11-03 04:01:58,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:01:58,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:01:58,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:01:58,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:01:58,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:01:58,444 INFO L87 Difference]: Start difference. First operand 571 states and 758 transitions. Second operand has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:01:58,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:01:58,863 INFO L93 Difference]: Finished difference Result 1749 states and 2337 transitions. [2022-11-03 04:01:58,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:01:58,864 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:01:58,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:01:58,870 INFO L225 Difference]: With dead ends: 1749 [2022-11-03 04:01:58,870 INFO L226 Difference]: Without dead ends: 1348 [2022-11-03 04:01:58,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:01:58,872 INFO L413 NwaCegarLoop]: 280 mSDtfsCounter, 607 mSDsluCounter, 1060 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 610 SdHoareTripleChecker+Valid, 1340 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 77 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:01:58,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [610 Valid, 1340 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 151 Invalid, 0 Unknown, 77 Unchecked, 0.3s Time] [2022-11-03 04:01:58,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1348 states. [2022-11-03 04:01:58,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1348 to 575. [2022-11-03 04:01:58,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 567 states have (on average 1.3245149911816578) internal successors, (751), 567 states have internal predecessors, (751), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 04:01:58,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 763 transitions. [2022-11-03 04:01:58,926 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 763 transitions. Word has length 218 [2022-11-03 04:01:58,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:01:58,927 INFO L495 AbstractCegarLoop]: Abstraction has 575 states and 763 transitions. [2022-11-03 04:01:58,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:01:58,927 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 763 transitions. [2022-11-03 04:01:58,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:01:58,931 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:01:58,931 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:01:58,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2022-11-03 04:01:59,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:01:59,152 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:01:59,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:01:59,153 INFO L85 PathProgramCache]: Analyzing trace with hash 2056364499, now seen corresponding path program 1 times [2022-11-03 04:01:59,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:01:59,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1489855642] [2022-11-03 04:01:59,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:01:59,154 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:01:59,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:01:59,155 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:01:59,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-11-03 04:01:59,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:01:59,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 04:01:59,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:02:00,261 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:02:00,261 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:02:00,261 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:02:00,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1489855642] [2022-11-03 04:02:00,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1489855642] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:02:00,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:02:00,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:02:00,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5689144] [2022-11-03 04:02:00,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:02:00,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:02:00,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:02:00,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:02:00,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:02:00,264 INFO L87 Difference]: Start difference. First operand 575 states and 763 transitions. Second operand has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:02:00,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:02:00,675 INFO L93 Difference]: Finished difference Result 1749 states and 2336 transitions. [2022-11-03 04:02:00,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:02:00,676 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:02:00,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:02:00,680 INFO L225 Difference]: With dead ends: 1749 [2022-11-03 04:02:00,680 INFO L226 Difference]: Without dead ends: 1348 [2022-11-03 04:02:00,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:02:00,683 INFO L413 NwaCegarLoop]: 347 mSDtfsCounter, 534 mSDsluCounter, 1186 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 1533 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 98 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:02:00,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [537 Valid, 1533 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 155 Invalid, 0 Unknown, 98 Unchecked, 0.3s Time] [2022-11-03 04:02:00,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1348 states. [2022-11-03 04:02:00,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1348 to 579. [2022-11-03 04:02:00,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 571 states have (on average 1.3239929947460596) internal successors, (756), 571 states have internal predecessors, (756), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 04:02:00,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 768 transitions. [2022-11-03 04:02:00,725 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 768 transitions. Word has length 218 [2022-11-03 04:02:00,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:02:00,725 INFO L495 AbstractCegarLoop]: Abstraction has 579 states and 768 transitions. [2022-11-03 04:02:00,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:02:00,726 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 768 transitions. [2022-11-03 04:02:00,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:02:00,729 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:02:00,729 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:02:00,747 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (23)] Ended with exit code 0 [2022-11-03 04:02:00,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:02:00,943 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:02:00,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:02:00,944 INFO L85 PathProgramCache]: Analyzing trace with hash 268494677, now seen corresponding path program 1 times [2022-11-03 04:02:00,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:02:00,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [313675541] [2022-11-03 04:02:00,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:00,945 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:02:00,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:02:00,946 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:02:00,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2022-11-03 04:02:01,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:02:01,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 04:02:01,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:02:02,095 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:02:02,095 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:02:02,096 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:02:02,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [313675541] [2022-11-03 04:02:02,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [313675541] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:02:02,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:02:02,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:02:02,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144883329] [2022-11-03 04:02:02,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:02:02,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:02:02,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:02:02,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:02:02,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:02:02,098 INFO L87 Difference]: Start difference. First operand 579 states and 768 transitions. Second operand has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:02:02,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:02:02,462 INFO L93 Difference]: Finished difference Result 1720 states and 2293 transitions. [2022-11-03 04:02:02,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:02:02,463 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:02:02,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:02:02,470 INFO L225 Difference]: With dead ends: 1720 [2022-11-03 04:02:02,470 INFO L226 Difference]: Without dead ends: 1319 [2022-11-03 04:02:02,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:02:02,473 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 476 mSDsluCounter, 1189 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 1519 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 91 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:02:02,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [479 Valid, 1519 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 152 Invalid, 0 Unknown, 91 Unchecked, 0.3s Time] [2022-11-03 04:02:02,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1319 states. [2022-11-03 04:02:02,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1319 to 587. [2022-11-03 04:02:02,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 579 states have (on average 1.3246977547495682) internal successors, (767), 579 states have internal predecessors, (767), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 04:02:02,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 779 transitions. [2022-11-03 04:02:02,518 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 779 transitions. Word has length 218 [2022-11-03 04:02:02,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:02:02,518 INFO L495 AbstractCegarLoop]: Abstraction has 587 states and 779 transitions. [2022-11-03 04:02:02,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:02:02,519 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 779 transitions. [2022-11-03 04:02:02,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:02:02,522 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:02:02,522 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:02:02,548 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2022-11-03 04:02:02,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:02:02,741 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:02:02,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:02:02,742 INFO L85 PathProgramCache]: Analyzing trace with hash -276377897, now seen corresponding path program 1 times [2022-11-03 04:02:02,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:02:02,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [3157692] [2022-11-03 04:02:02,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:02,743 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:02:02,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:02:02,744 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:02:02,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2022-11-03 04:02:03,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:02:03,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 04:02:03,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:02:03,839 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:02:03,839 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:02:03,839 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:02:03,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [3157692] [2022-11-03 04:02:03,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [3157692] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:02:03,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:02:03,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:02:03,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666422725] [2022-11-03 04:02:03,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:02:03,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:02:03,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:02:03,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:02:03,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:02:03,841 INFO L87 Difference]: Start difference. First operand 587 states and 779 transitions. Second operand has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:02:04,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:02:04,266 INFO L93 Difference]: Finished difference Result 1749 states and 2334 transitions. [2022-11-03 04:02:04,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:02:04,267 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:02:04,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:02:04,271 INFO L225 Difference]: With dead ends: 1749 [2022-11-03 04:02:04,271 INFO L226 Difference]: Without dead ends: 1348 [2022-11-03 04:02:04,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:02:04,273 INFO L413 NwaCegarLoop]: 369 mSDtfsCounter, 500 mSDsluCounter, 1221 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 503 SdHoareTripleChecker+Valid, 1590 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 98 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:02:04,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [503 Valid, 1590 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 165 Invalid, 0 Unknown, 98 Unchecked, 0.3s Time] [2022-11-03 04:02:04,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1348 states. [2022-11-03 04:02:04,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1348 to 591. [2022-11-03 04:02:04,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 583 states have (on average 1.3241852487135506) internal successors, (772), 583 states have internal predecessors, (772), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 04:02:04,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 784 transitions. [2022-11-03 04:02:04,319 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 784 transitions. Word has length 218 [2022-11-03 04:02:04,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:02:04,320 INFO L495 AbstractCegarLoop]: Abstraction has 591 states and 784 transitions. [2022-11-03 04:02:04,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:02:04,320 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 784 transitions. [2022-11-03 04:02:04,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:02:04,322 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:02:04,322 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:02:04,347 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2022-11-03 04:02:04,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:02:04,542 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:02:04,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:02:04,543 INFO L85 PathProgramCache]: Analyzing trace with hash -710883495, now seen corresponding path program 1 times [2022-11-03 04:02:04,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:02:04,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [221720798] [2022-11-03 04:02:04,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:04,545 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:02:04,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:02:04,546 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:02:04,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2022-11-03 04:02:05,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:02:05,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 04:02:05,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:02:05,640 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:02:05,640 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:02:05,641 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:02:05,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [221720798] [2022-11-03 04:02:05,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [221720798] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:02:05,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:02:05,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:02:05,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466892951] [2022-11-03 04:02:05,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:02:05,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:02:05,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:02:05,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:02:05,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:02:05,643 INFO L87 Difference]: Start difference. First operand 591 states and 784 transitions. Second operand has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:02:05,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:02:05,996 INFO L93 Difference]: Finished difference Result 1749 states and 2333 transitions. [2022-11-03 04:02:05,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:02:05,997 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:02:05,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:02:06,002 INFO L225 Difference]: With dead ends: 1749 [2022-11-03 04:02:06,002 INFO L226 Difference]: Without dead ends: 1348 [2022-11-03 04:02:06,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:02:06,004 INFO L413 NwaCegarLoop]: 310 mSDtfsCounter, 553 mSDsluCounter, 1111 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 556 SdHoareTripleChecker+Valid, 1421 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 78 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:02:06,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [556 Valid, 1421 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 161 Invalid, 0 Unknown, 78 Unchecked, 0.3s Time] [2022-11-03 04:02:06,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1348 states. [2022-11-03 04:02:06,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1348 to 595. [2022-11-03 04:02:06,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 587 states have (on average 1.323679727427598) internal successors, (777), 587 states have internal predecessors, (777), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 04:02:06,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 789 transitions. [2022-11-03 04:02:06,046 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 789 transitions. Word has length 218 [2022-11-03 04:02:06,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:02:06,047 INFO L495 AbstractCegarLoop]: Abstraction has 595 states and 789 transitions. [2022-11-03 04:02:06,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:02:06,047 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 789 transitions. [2022-11-03 04:02:06,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:02:06,049 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:02:06,050 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:02:06,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2022-11-03 04:02:06,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:02:06,268 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:02:06,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:02:06,269 INFO L85 PathProgramCache]: Analyzing trace with hash 150950107, now seen corresponding path program 1 times [2022-11-03 04:02:06,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:02:06,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [969307609] [2022-11-03 04:02:06,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:06,270 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:02:06,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:02:06,271 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:02:06,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2022-11-03 04:02:06,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:02:06,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 04:02:06,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:02:07,430 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:02:07,431 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:02:07,431 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:02:07,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [969307609] [2022-11-03 04:02:07,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [969307609] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:02:07,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:02:07,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:02:07,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26278893] [2022-11-03 04:02:07,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:02:07,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:02:07,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:02:07,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:02:07,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:02:07,434 INFO L87 Difference]: Start difference. First operand 595 states and 789 transitions. Second operand has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:02:07,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:02:07,841 INFO L93 Difference]: Finished difference Result 1749 states and 2332 transitions. [2022-11-03 04:02:07,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:02:07,842 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:02:07,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:02:07,846 INFO L225 Difference]: With dead ends: 1749 [2022-11-03 04:02:07,847 INFO L226 Difference]: Without dead ends: 1348 [2022-11-03 04:02:07,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:02:07,849 INFO L413 NwaCegarLoop]: 381 mSDtfsCounter, 478 mSDsluCounter, 1239 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 1620 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 77 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:02:07,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [481 Valid, 1620 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 168 Invalid, 0 Unknown, 77 Unchecked, 0.3s Time] [2022-11-03 04:02:07,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1348 states. [2022-11-03 04:02:07,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1348 to 599. [2022-11-03 04:02:07,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 591 states have (on average 1.3231810490693738) internal successors, (782), 591 states have internal predecessors, (782), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 04:02:07,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 794 transitions. [2022-11-03 04:02:07,891 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 794 transitions. Word has length 218 [2022-11-03 04:02:07,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:02:07,891 INFO L495 AbstractCegarLoop]: Abstraction has 599 states and 794 transitions. [2022-11-03 04:02:07,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:02:07,892 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 794 transitions. [2022-11-03 04:02:07,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:02:07,894 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:02:07,894 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:02:07,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2022-11-03 04:02:08,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:02:08,108 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:02:08,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:02:08,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1131222179, now seen corresponding path program 1 times [2022-11-03 04:02:08,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:02:08,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2011505891] [2022-11-03 04:02:08,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:08,110 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:02:08,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:02:08,111 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:02:08,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2022-11-03 04:02:08,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:02:08,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:02:08,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:02:08,883 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-03 04:02:08,883 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:02:09,210 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 48 proven. 15 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-03 04:02:09,211 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:02:09,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2011505891] [2022-11-03 04:02:09,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2011505891] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:02:09,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1146101417] [2022-11-03 04:02:09,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:09,212 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:02:09,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:02:09,215 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:02:09,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2022-11-03 04:02:10,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:02:10,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 04:02:10,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:02:10,247 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:02:10,247 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:02:10,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1146101417] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:02:10,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:02:10,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 14 [2022-11-03 04:02:10,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705203067] [2022-11-03 04:02:10,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:02:10,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:02:10,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:02:10,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:02:10,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-03 04:02:10,251 INFO L87 Difference]: Start difference. First operand 599 states and 794 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:02:10,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:02:10,517 INFO L93 Difference]: Finished difference Result 1549 states and 2080 transitions. [2022-11-03 04:02:10,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:02:10,518 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:02:10,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:02:10,521 INFO L225 Difference]: With dead ends: 1549 [2022-11-03 04:02:10,521 INFO L226 Difference]: Without dead ends: 1148 [2022-11-03 04:02:10,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 638 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2022-11-03 04:02:10,523 INFO L413 NwaCegarLoop]: 306 mSDtfsCounter, 932 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 935 SdHoareTripleChecker+Valid, 893 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:02:10,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [935 Valid, 893 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:02:10,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1148 states. [2022-11-03 04:02:10,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1148 to 661. [2022-11-03 04:02:10,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 653 states have (on average 1.327718223583461) internal successors, (867), 653 states have internal predecessors, (867), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 04:02:10,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 879 transitions. [2022-11-03 04:02:10,567 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 879 transitions. Word has length 218 [2022-11-03 04:02:10,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:02:10,567 INFO L495 AbstractCegarLoop]: Abstraction has 661 states and 879 transitions. [2022-11-03 04:02:10,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:02:10,568 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 879 transitions. [2022-11-03 04:02:10,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:02:10,570 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:02:10,570 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:02:10,583 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (29)] Forceful destruction successful, exit code 0 [2022-11-03 04:02:10,788 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (28)] Ended with exit code 0 [2022-11-03 04:02:10,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:02:10,977 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:02:10,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:02:10,977 INFO L85 PathProgramCache]: Analyzing trace with hash 590780507, now seen corresponding path program 1 times [2022-11-03 04:02:10,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:02:10,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1481498982] [2022-11-03 04:02:10,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:10,978 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:02:10,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:02:10,980 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:02:10,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2022-11-03 04:02:11,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:02:11,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 04:02:11,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:02:12,061 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:02:12,061 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:02:12,061 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:02:12,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1481498982] [2022-11-03 04:02:12,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1481498982] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:02:12,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:02:12,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:02:12,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812419951] [2022-11-03 04:02:12,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:02:12,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:02:12,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:02:12,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:02:12,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:02:12,063 INFO L87 Difference]: Start difference. First operand 661 states and 879 transitions. Second operand has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:02:12,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:02:12,431 INFO L93 Difference]: Finished difference Result 1877 states and 2512 transitions. [2022-11-03 04:02:12,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:02:12,432 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:02:12,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:02:12,435 INFO L225 Difference]: With dead ends: 1877 [2022-11-03 04:02:12,435 INFO L226 Difference]: Without dead ends: 1444 [2022-11-03 04:02:12,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:02:12,436 INFO L413 NwaCegarLoop]: 383 mSDtfsCounter, 469 mSDsluCounter, 1237 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 472 SdHoareTripleChecker+Valid, 1620 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 72 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:02:12,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [472 Valid, 1620 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 167 Invalid, 0 Unknown, 72 Unchecked, 0.3s Time] [2022-11-03 04:02:12,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1444 states. [2022-11-03 04:02:12,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1444 to 667. [2022-11-03 04:02:12,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 667 states, 659 states have (on average 1.3262518968133536) internal successors, (874), 659 states have internal predecessors, (874), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 04:02:12,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 886 transitions. [2022-11-03 04:02:12,477 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 886 transitions. Word has length 218 [2022-11-03 04:02:12,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:02:12,477 INFO L495 AbstractCegarLoop]: Abstraction has 667 states and 886 transitions. [2022-11-03 04:02:12,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:02:12,478 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 886 transitions. [2022-11-03 04:02:12,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:02:12,480 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:02:12,480 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:02:12,499 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (30)] Ended with exit code 0 [2022-11-03 04:02:12,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:02:12,695 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:02:12,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:02:12,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1775254563, now seen corresponding path program 1 times [2022-11-03 04:02:12,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:02:12,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [270946406] [2022-11-03 04:02:12,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:12,697 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:02:12,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:02:12,699 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:02:12,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2022-11-03 04:02:13,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:02:13,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 04:02:13,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:02:13,947 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:02:13,947 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:02:13,947 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:02:13,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [270946406] [2022-11-03 04:02:13,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [270946406] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:02:13,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:02:13,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:02:13,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882227998] [2022-11-03 04:02:13,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:02:13,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:02:13,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:02:13,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:02:13,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:02:13,950 INFO L87 Difference]: Start difference. First operand 667 states and 886 transitions. Second operand has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:02:14,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:02:14,330 INFO L93 Difference]: Finished difference Result 1877 states and 2511 transitions. [2022-11-03 04:02:14,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:02:14,331 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:02:14,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:02:14,334 INFO L225 Difference]: With dead ends: 1877 [2022-11-03 04:02:14,334 INFO L226 Difference]: Without dead ends: 1444 [2022-11-03 04:02:14,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:02:14,335 INFO L413 NwaCegarLoop]: 389 mSDtfsCounter, 458 mSDsluCounter, 1246 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 1635 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 51 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:02:14,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [461 Valid, 1635 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 169 Invalid, 0 Unknown, 51 Unchecked, 0.3s Time] [2022-11-03 04:02:14,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1444 states. [2022-11-03 04:02:14,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1444 to 671. [2022-11-03 04:02:14,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 663 states have (on average 1.3257918552036199) internal successors, (879), 663 states have internal predecessors, (879), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 04:02:14,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 891 transitions. [2022-11-03 04:02:14,388 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 891 transitions. Word has length 218 [2022-11-03 04:02:14,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:02:14,388 INFO L495 AbstractCegarLoop]: Abstraction has 671 states and 891 transitions. [2022-11-03 04:02:14,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:02:14,389 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 891 transitions. [2022-11-03 04:02:14,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:02:14,391 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:02:14,391 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:02:14,416 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2022-11-03 04:02:14,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:02:14,607 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:02:14,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:02:14,607 INFO L85 PathProgramCache]: Analyzing trace with hash 872349791, now seen corresponding path program 1 times [2022-11-03 04:02:14,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:02:14,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1287752903] [2022-11-03 04:02:14,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:14,609 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:02:14,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:02:14,610 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:02:14,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2022-11-03 04:02:15,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:02:15,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 04:02:15,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:02:15,839 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:02:15,840 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:02:15,840 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:02:15,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1287752903] [2022-11-03 04:02:15,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1287752903] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:02:15,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:02:15,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:02:15,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188614359] [2022-11-03 04:02:15,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:02:15,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:02:15,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:02:15,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:02:15,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:02:15,842 INFO L87 Difference]: Start difference. First operand 671 states and 891 transitions. Second operand has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:02:16,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:02:16,186 INFO L93 Difference]: Finished difference Result 1792 states and 2385 transitions. [2022-11-03 04:02:16,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:02:16,187 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:02:16,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:02:16,189 INFO L225 Difference]: With dead ends: 1792 [2022-11-03 04:02:16,190 INFO L226 Difference]: Without dead ends: 1359 [2022-11-03 04:02:16,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:02:16,191 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 376 mSDsluCounter, 1144 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 1470 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 67 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:02:16,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 1470 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 152 Invalid, 0 Unknown, 67 Unchecked, 0.3s Time] [2022-11-03 04:02:16,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1359 states. [2022-11-03 04:02:16,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1359 to 675. [2022-11-03 04:02:16,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 667 states have (on average 1.3253373313343328) internal successors, (884), 667 states have internal predecessors, (884), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 04:02:16,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 896 transitions. [2022-11-03 04:02:16,239 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 896 transitions. Word has length 218 [2022-11-03 04:02:16,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:02:16,239 INFO L495 AbstractCegarLoop]: Abstraction has 675 states and 896 transitions. [2022-11-03 04:02:16,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:02:16,240 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 896 transitions. [2022-11-03 04:02:16,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:02:16,242 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:02:16,243 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:02:16,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2022-11-03 04:02:16,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:02:16,463 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:02:16,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:02:16,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1269510687, now seen corresponding path program 1 times [2022-11-03 04:02:16,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:02:16,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1074498748] [2022-11-03 04:02:16,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:16,465 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:02:16,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:02:16,467 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:02:16,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2022-11-03 04:02:16,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:02:17,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 04:02:17,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:02:17,830 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:02:17,830 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:02:17,830 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:02:17,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1074498748] [2022-11-03 04:02:17,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1074498748] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:02:17,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:02:17,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:02:17,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039659334] [2022-11-03 04:02:17,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:02:17,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:02:17,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:02:17,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:02:17,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:02:17,832 INFO L87 Difference]: Start difference. First operand 675 states and 896 transitions. Second operand has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:02:18,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:02:18,182 INFO L93 Difference]: Finished difference Result 1877 states and 2509 transitions. [2022-11-03 04:02:18,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:02:18,183 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:02:18,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:02:18,187 INFO L225 Difference]: With dead ends: 1877 [2022-11-03 04:02:18,187 INFO L226 Difference]: Without dead ends: 1444 [2022-11-03 04:02:18,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:02:18,188 INFO L413 NwaCegarLoop]: 407 mSDtfsCounter, 426 mSDsluCounter, 1275 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 1682 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 88 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:02:18,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [429 Valid, 1682 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 176 Invalid, 0 Unknown, 88 Unchecked, 0.3s Time] [2022-11-03 04:02:18,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1444 states. [2022-11-03 04:02:18,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1444 to 683. [2022-11-03 04:02:18,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 683 states, 675 states have (on average 1.325925925925926) internal successors, (895), 675 states have internal predecessors, (895), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 04:02:18,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 907 transitions. [2022-11-03 04:02:18,230 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 907 transitions. Word has length 218 [2022-11-03 04:02:18,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:02:18,230 INFO L495 AbstractCegarLoop]: Abstraction has 683 states and 907 transitions. [2022-11-03 04:02:18,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:02:18,231 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 907 transitions. [2022-11-03 04:02:18,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:02:18,233 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:02:18,233 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:02:18,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2022-11-03 04:02:18,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:02:18,447 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:02:18,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:02:18,448 INFO L85 PathProgramCache]: Analyzing trace with hash -238469789, now seen corresponding path program 1 times [2022-11-03 04:02:18,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:02:18,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [50039783] [2022-11-03 04:02:18,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:18,449 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:02:18,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:02:18,450 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:02:18,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2022-11-03 04:02:18,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:02:18,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 04:02:18,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:02:19,730 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:02:19,730 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:02:19,730 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:02:19,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [50039783] [2022-11-03 04:02:19,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [50039783] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:02:19,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:02:19,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:02:19,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113698150] [2022-11-03 04:02:19,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:02:19,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:02:19,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:02:19,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:02:19,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:02:19,733 INFO L87 Difference]: Start difference. First operand 683 states and 907 transitions. Second operand has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:02:20,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:02:20,056 INFO L93 Difference]: Finished difference Result 1780 states and 2365 transitions. [2022-11-03 04:02:20,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:02:20,056 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:02:20,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:02:20,060 INFO L225 Difference]: With dead ends: 1780 [2022-11-03 04:02:20,061 INFO L226 Difference]: Without dead ends: 1347 [2022-11-03 04:02:20,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:02:20,062 INFO L413 NwaCegarLoop]: 265 mSDtfsCounter, 388 mSDsluCounter, 1013 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 1278 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 82 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:02:20,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 1278 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 149 Invalid, 0 Unknown, 82 Unchecked, 0.2s Time] [2022-11-03 04:02:20,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1347 states. [2022-11-03 04:02:20,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1347 to 687. [2022-11-03 04:02:20,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 687 states, 679 states have (on average 1.3254786450662739) internal successors, (900), 679 states have internal predecessors, (900), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 04:02:20,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 912 transitions. [2022-11-03 04:02:20,103 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 912 transitions. Word has length 218 [2022-11-03 04:02:20,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:02:20,103 INFO L495 AbstractCegarLoop]: Abstraction has 687 states and 912 transitions. [2022-11-03 04:02:20,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:02:20,104 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 912 transitions. [2022-11-03 04:02:20,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:02:20,106 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:02:20,106 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:02:20,129 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2022-11-03 04:02:20,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:02:20,321 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:02:20,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:02:20,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1112915429, now seen corresponding path program 1 times [2022-11-03 04:02:20,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:02:20,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1614562366] [2022-11-03 04:02:20,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:20,323 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:02:20,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:02:20,324 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:02:20,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2022-11-03 04:02:20,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:02:20,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:02:20,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:02:21,320 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:02:21,320 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:02:21,320 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:02:21,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1614562366] [2022-11-03 04:02:21,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1614562366] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:02:21,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:02:21,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:02:21,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185720507] [2022-11-03 04:02:21,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:02:21,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:02:21,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:02:21,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:02:21,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:02:21,323 INFO L87 Difference]: Start difference. First operand 687 states and 912 transitions. Second operand has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:02:21,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:02:21,694 INFO L93 Difference]: Finished difference Result 1877 states and 2507 transitions. [2022-11-03 04:02:21,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:02:21,695 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:02:21,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:02:21,699 INFO L225 Difference]: With dead ends: 1877 [2022-11-03 04:02:21,699 INFO L226 Difference]: Without dead ends: 1444 [2022-11-03 04:02:21,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:02:21,703 INFO L413 NwaCegarLoop]: 423 mSDtfsCounter, 402 mSDsluCounter, 1300 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 1723 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 105 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:02:21,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 1723 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 181 Invalid, 0 Unknown, 105 Unchecked, 0.3s Time] [2022-11-03 04:02:21,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1444 states. [2022-11-03 04:02:21,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1444 to 691. [2022-11-03 04:02:21,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 683 states have (on average 1.3250366032210834) internal successors, (905), 683 states have internal predecessors, (905), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 04:02:21,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 917 transitions. [2022-11-03 04:02:21,775 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 917 transitions. Word has length 218 [2022-11-03 04:02:21,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:02:21,776 INFO L495 AbstractCegarLoop]: Abstraction has 691 states and 917 transitions. [2022-11-03 04:02:21,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:02:21,776 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 917 transitions. [2022-11-03 04:02:21,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:02:21,778 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:02:21,779 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:02:21,804 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2022-11-03 04:02:21,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:02:21,997 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:02:21,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:02:21,997 INFO L85 PathProgramCache]: Analyzing trace with hash -827666585, now seen corresponding path program 1 times [2022-11-03 04:02:21,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:02:21,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2110621241] [2022-11-03 04:02:21,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:21,999 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:02:21,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:02:22,003 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:02:22,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2022-11-03 04:02:22,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:02:22,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 04:02:22,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:02:23,050 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:02:23,051 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:02:23,051 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:02:23,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2110621241] [2022-11-03 04:02:23,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2110621241] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:02:23,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:02:23,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:02:23,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068948883] [2022-11-03 04:02:23,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:02:23,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:02:23,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:02:23,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:02:23,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:02:23,053 INFO L87 Difference]: Start difference. First operand 691 states and 917 transitions. Second operand has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:02:23,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:02:23,258 INFO L93 Difference]: Finished difference Result 1128 states and 1507 transitions. [2022-11-03 04:02:23,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 04:02:23,258 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:02:23,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:02:23,260 INFO L225 Difference]: With dead ends: 1128 [2022-11-03 04:02:23,260 INFO L226 Difference]: Without dead ends: 695 [2022-11-03 04:02:23,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:02:23,262 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 41 mSDsluCounter, 755 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 951 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 62 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:02:23,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 951 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 62 Unchecked, 0.1s Time] [2022-11-03 04:02:23,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 695 states. [2022-11-03 04:02:23,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 695 to 695. [2022-11-03 04:02:23,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 687 states have (on average 1.3245997088791848) internal successors, (910), 687 states have internal predecessors, (910), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 04:02:23,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 922 transitions. [2022-11-03 04:02:23,299 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 922 transitions. Word has length 218 [2022-11-03 04:02:23,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:02:23,300 INFO L495 AbstractCegarLoop]: Abstraction has 695 states and 922 transitions. [2022-11-03 04:02:23,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:02:23,300 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 922 transitions. [2022-11-03 04:02:23,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:02:23,302 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:02:23,302 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:02:23,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2022-11-03 04:02:23,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:02:23,515 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:02:23,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:02:23,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1413942807, now seen corresponding path program 1 times [2022-11-03 04:02:23,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:02:23,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [388468211] [2022-11-03 04:02:23,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:23,517 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:02:23,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:02:23,518 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:02:23,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2022-11-03 04:02:23,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:02:23,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:02:23,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:02:24,252 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-03 04:02:24,252 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:02:24,581 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 48 proven. 15 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-03 04:02:24,582 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:02:24,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [388468211] [2022-11-03 04:02:24,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [388468211] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:02:24,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [56903813] [2022-11-03 04:02:24,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:24,582 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:02:24,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:02:24,583 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:02:24,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (38)] Waiting until timeout for monitored process [2022-11-03 04:02:25,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:02:25,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 04:02:25,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:02:25,515 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:02:25,515 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:02:25,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [56903813] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:02:25,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:02:25,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 14 [2022-11-03 04:02:25,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936707030] [2022-11-03 04:02:25,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:02:25,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:02:25,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:02:25,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:02:25,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-03 04:02:25,517 INFO L87 Difference]: Start difference. First operand 695 states and 922 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:02:25,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:02:25,760 INFO L93 Difference]: Finished difference Result 1677 states and 2254 transitions. [2022-11-03 04:02:25,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:02:25,761 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:02:25,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:02:25,763 INFO L225 Difference]: With dead ends: 1677 [2022-11-03 04:02:25,763 INFO L226 Difference]: Without dead ends: 1244 [2022-11-03 04:02:25,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 638 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2022-11-03 04:02:25,764 INFO L413 NwaCegarLoop]: 349 mSDtfsCounter, 891 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 894 SdHoareTripleChecker+Valid, 940 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:02:25,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [894 Valid, 940 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:02:25,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1244 states. [2022-11-03 04:02:25,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1244 to 757. [2022-11-03 04:02:25,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 757 states, 749 states have (on average 1.328437917222964) internal successors, (995), 749 states have internal predecessors, (995), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 04:02:25,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 757 states to 757 states and 1007 transitions. [2022-11-03 04:02:25,805 INFO L78 Accepts]: Start accepts. Automaton has 757 states and 1007 transitions. Word has length 218 [2022-11-03 04:02:25,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:02:25,806 INFO L495 AbstractCegarLoop]: Abstraction has 757 states and 1007 transitions. [2022-11-03 04:02:25,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:02:25,806 INFO L276 IsEmpty]: Start isEmpty. Operand 757 states and 1007 transitions. [2022-11-03 04:02:25,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:02:25,808 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:02:25,809 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:02:25,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (38)] Forceful destruction successful, exit code 0 [2022-11-03 04:02:26,028 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (37)] Ended with exit code 0 [2022-11-03 04:02:26,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:02:26,215 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:02:26,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:02:26,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1004541671, now seen corresponding path program 1 times [2022-11-03 04:02:26,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:02:26,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1818788468] [2022-11-03 04:02:26,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:26,217 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:02:26,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:02:26,219 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:02:26,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2022-11-03 04:02:26,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:02:26,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:02:26,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:02:26,977 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-03 04:02:26,977 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:02:27,365 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 48 proven. 15 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-03 04:02:27,365 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:02:27,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1818788468] [2022-11-03 04:02:27,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1818788468] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:02:27,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [866966643] [2022-11-03 04:02:27,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:27,366 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:02:27,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:02:27,367 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:02:27,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (40)] Waiting until timeout for monitored process [2022-11-03 04:02:28,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:02:28,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 04:02:28,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:02:28,389 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:02:28,390 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:02:28,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [866966643] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:02:28,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:02:28,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 14 [2022-11-03 04:02:28,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420562957] [2022-11-03 04:02:28,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:02:28,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:02:28,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:02:28,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:02:28,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-03 04:02:28,392 INFO L87 Difference]: Start difference. First operand 757 states and 1007 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:02:28,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:02:28,648 INFO L93 Difference]: Finished difference Result 1723 states and 2320 transitions. [2022-11-03 04:02:28,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:02:28,649 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:02:28,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:02:28,651 INFO L225 Difference]: With dead ends: 1723 [2022-11-03 04:02:28,651 INFO L226 Difference]: Without dead ends: 1258 [2022-11-03 04:02:28,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 638 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2022-11-03 04:02:28,652 INFO L413 NwaCegarLoop]: 362 mSDtfsCounter, 880 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 883 SdHoareTripleChecker+Valid, 949 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:02:28,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [883 Valid, 949 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:02:28,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1258 states. [2022-11-03 04:02:28,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1258 to 771. [2022-11-03 04:02:28,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 771 states, 763 states have (on average 1.3302752293577982) internal successors, (1015), 763 states have internal predecessors, (1015), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 04:02:28,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 1027 transitions. [2022-11-03 04:02:28,694 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 1027 transitions. Word has length 218 [2022-11-03 04:02:28,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:02:28,694 INFO L495 AbstractCegarLoop]: Abstraction has 771 states and 1027 transitions. [2022-11-03 04:02:28,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:02:28,695 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 1027 transitions. [2022-11-03 04:02:28,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:02:28,697 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:02:28,697 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:02:28,720 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (39)] Forceful destruction successful, exit code 0 [2022-11-03 04:02:28,919 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (40)] Ended with exit code 0 [2022-11-03 04:02:29,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 04:02:29,115 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:02:29,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:02:29,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1971892325, now seen corresponding path program 1 times [2022-11-03 04:02:29,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:02:29,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1157840725] [2022-11-03 04:02:29,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:29,117 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:02:29,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:02:29,118 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:02:29,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2022-11-03 04:02:29,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:02:29,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 04:02:29,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:02:30,481 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 47 proven. 16 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-03 04:02:30,482 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:02:32,816 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:02:32,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1157840725] [2022-11-03 04:02:32,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1157840725] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:02:32,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [127180959] [2022-11-03 04:02:32,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:32,817 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:02:32,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:02:32,818 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:02:32,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (42)] Waiting until timeout for monitored process [2022-11-03 04:02:33,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:02:33,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-03 04:02:33,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:02:33,929 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 2 proven. 46 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-03 04:02:33,929 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:02:34,235 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 2 proven. 46 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-03 04:02:34,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [127180959] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:02:34,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1177184710] [2022-11-03 04:02:34,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:34,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:02:34,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:02:34,256 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:02:34,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2022-11-03 04:02:34,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:02:34,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-03 04:02:34,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:02:34,910 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 2 proven. 46 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-03 04:02:34,910 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:02:35,160 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 2 proven. 46 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-03 04:02:35,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1177184710] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:02:35,160 INFO L184 FreeRefinementEngine]: Found 0 perfect and 5 imperfect interpolant sequences. [2022-11-03 04:02:35,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6, 6, 6, 6] total 14 [2022-11-03 04:02:35,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008323318] [2022-11-03 04:02:35,162 INFO L85 oduleStraightlineAll]: Using 5 imperfect interpolants to construct interpolant automaton [2022-11-03 04:02:35,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-03 04:02:35,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:02:35,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-03 04:02:35,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2022-11-03 04:02:35,165 INFO L87 Difference]: Start difference. First operand 771 states and 1027 transitions. Second operand has 14 states, 13 states have (on average 29.076923076923077) internal successors, (378), 14 states have internal predecessors, (378), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2022-11-03 04:02:36,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:02:36,999 INFO L93 Difference]: Finished difference Result 1547 states and 2114 transitions. [2022-11-03 04:02:37,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-03 04:02:37,003 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 29.076923076923077) internal successors, (378), 14 states have internal predecessors, (378), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) Word has length 218 [2022-11-03 04:02:37,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:02:37,008 INFO L225 Difference]: With dead ends: 1547 [2022-11-03 04:02:37,008 INFO L226 Difference]: Without dead ends: 1068 [2022-11-03 04:02:37,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1305 GetRequests, 1266 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=337, Invalid=1145, Unknown=0, NotChecked=0, Total=1482 [2022-11-03 04:02:37,010 INFO L413 NwaCegarLoop]: 727 mSDtfsCounter, 913 mSDsluCounter, 5085 mSDsCounter, 0 mSdLazyCounter, 1357 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 913 SdHoareTripleChecker+Valid, 5812 SdHoareTripleChecker+Invalid, 1616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 254 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:02:37,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [913 Valid, 5812 Invalid, 1616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1357 Invalid, 0 Unknown, 254 Unchecked, 1.3s Time] [2022-11-03 04:02:37,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2022-11-03 04:02:37,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 629. [2022-11-03 04:02:37,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 621 states have (on average 1.3317230273752012) internal successors, (827), 621 states have internal predecessors, (827), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 04:02:37,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 839 transitions. [2022-11-03 04:02:37,048 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 839 transitions. Word has length 218 [2022-11-03 04:02:37,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:02:37,049 INFO L495 AbstractCegarLoop]: Abstraction has 629 states and 839 transitions. [2022-11-03 04:02:37,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 29.076923076923077) internal successors, (378), 14 states have internal predecessors, (378), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2022-11-03 04:02:37,049 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 839 transitions. [2022-11-03 04:02:37,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:02:37,051 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:02:37,051 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:02:37,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2022-11-03 04:02:37,284 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (41)] Ended with exit code 0 [2022-11-03 04:02:37,475 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (42)] Ended with exit code 0 [2022-11-03 04:02:37,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 04:02:37,671 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:02:37,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:02:37,672 INFO L85 PathProgramCache]: Analyzing trace with hash 600144609, now seen corresponding path program 1 times [2022-11-03 04:02:37,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:02:37,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1359914914] [2022-11-03 04:02:37,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:37,673 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:02:37,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:02:37,675 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:02:37,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2022-11-03 04:02:38,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:02:38,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 04:02:38,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:02:38,686 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 36 proven. 12 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-03 04:02:38,686 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:02:38,723 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:02:38,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1359914914] [2022-11-03 04:02:38,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1359914914] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:02:38,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [577658394] [2022-11-03 04:02:38,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:38,724 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:02:38,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:02:38,725 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:02:38,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (45)] Waiting until timeout for monitored process [2022-11-03 04:02:39,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:02:39,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-03 04:02:39,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:02:40,623 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-03 04:02:40,623 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:02:41,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [577658394] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:02:41,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1749348899] [2022-11-03 04:02:41,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:41,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:02:41,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:02:41,051 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:02:41,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2022-11-03 04:02:41,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:02:41,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-03 04:02:41,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:02:42,571 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 36 proven. 12 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-03 04:02:42,571 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:02:43,154 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 36 proven. 12 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-03 04:02:43,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1749348899] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:02:43,154 INFO L184 FreeRefinementEngine]: Found 0 perfect and 4 imperfect interpolant sequences. [2022-11-03 04:02:43,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12, 8, 8] total 28 [2022-11-03 04:02:43,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361890571] [2022-11-03 04:02:43,155 INFO L85 oduleStraightlineAll]: Using 4 imperfect interpolants to construct interpolant automaton [2022-11-03 04:02:43,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-03 04:02:43,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:02:43,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-03 04:02:43,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=1099, Unknown=0, NotChecked=0, Total=1190 [2022-11-03 04:02:43,158 INFO L87 Difference]: Start difference. First operand 629 states and 839 transitions. Second operand has 28 states, 28 states have (on average 24.107142857142858) internal successors, (675), 28 states have internal predecessors, (675), 8 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 8 states have call predecessors, (24), 8 states have call successors, (24) [2022-11-03 04:02:50,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:02:50,641 INFO L93 Difference]: Finished difference Result 3249 states and 4498 transitions. [2022-11-03 04:02:50,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-11-03 04:02:50,641 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 24.107142857142858) internal successors, (675), 28 states have internal predecessors, (675), 8 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 8 states have call predecessors, (24), 8 states have call successors, (24) Word has length 218 [2022-11-03 04:02:50,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:02:50,648 INFO L225 Difference]: With dead ends: 3249 [2022-11-03 04:02:50,648 INFO L226 Difference]: Without dead ends: 2996 [2022-11-03 04:02:50,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1030 GetRequests, 923 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2326 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=2327, Invalid=9445, Unknown=0, NotChecked=0, Total=11772 [2022-11-03 04:02:50,652 INFO L413 NwaCegarLoop]: 1168 mSDtfsCounter, 4075 mSDsluCounter, 15474 mSDsCounter, 0 mSdLazyCounter, 3584 mSolverCounterSat, 321 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4075 SdHoareTripleChecker+Valid, 16642 SdHoareTripleChecker+Invalid, 4952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 321 IncrementalHoareTripleChecker+Valid, 3584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1047 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-03 04:02:50,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4075 Valid, 16642 Invalid, 4952 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [321 Valid, 3584 Invalid, 0 Unknown, 1047 Unchecked, 3.6s Time] [2022-11-03 04:02:50,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2996 states. [2022-11-03 04:02:50,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2996 to 852. [2022-11-03 04:02:50,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 852 states, 835 states have (on average 1.3449101796407186) internal successors, (1123), 835 states have internal predecessors, (1123), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 04:02:50,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 852 states to 852 states and 1153 transitions. [2022-11-03 04:02:50,785 INFO L78 Accepts]: Start accepts. Automaton has 852 states and 1153 transitions. Word has length 218 [2022-11-03 04:02:50,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:02:50,785 INFO L495 AbstractCegarLoop]: Abstraction has 852 states and 1153 transitions. [2022-11-03 04:02:50,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 24.107142857142858) internal successors, (675), 28 states have internal predecessors, (675), 8 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 8 states have call predecessors, (24), 8 states have call successors, (24) [2022-11-03 04:02:50,786 INFO L276 IsEmpty]: Start isEmpty. Operand 852 states and 1153 transitions. [2022-11-03 04:02:50,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:02:50,788 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:02:50,788 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:02:50,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (45)] Forceful destruction successful, exit code 0 [2022-11-03 04:02:51,019 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2022-11-03 04:02:51,209 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (44)] Forceful destruction successful, exit code 0 [2022-11-03 04:02:51,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:02:51,397 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:02:51,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:02:51,398 INFO L85 PathProgramCache]: Analyzing trace with hash 685485245, now seen corresponding path program 1 times [2022-11-03 04:02:51,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:02:51,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [894677873] [2022-11-03 04:02:51,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:51,399 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:02:51,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:02:51,401 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:02:51,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2022-11-03 04:02:51,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:02:51,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:02:51,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:02:52,202 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-03 04:02:52,202 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:02:52,529 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 48 proven. 15 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-03 04:02:52,529 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:02:52,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [894677873] [2022-11-03 04:02:52,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [894677873] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:02:52,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1198289511] [2022-11-03 04:02:52,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:52,530 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:02:52,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:02:52,535 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:02:52,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (48)] Waiting until timeout for monitored process [2022-11-03 04:02:53,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:02:53,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 04:02:53,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:02:53,520 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:02:53,520 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:02:53,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1198289511] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:02:53,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:02:53,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 14 [2022-11-03 04:02:53,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725887537] [2022-11-03 04:02:53,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:02:53,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:02:53,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:02:53,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:02:53,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-03 04:02:53,522 INFO L87 Difference]: Start difference. First operand 852 states and 1153 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:02:53,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:02:53,768 INFO L93 Difference]: Finished difference Result 1490 states and 2045 transitions. [2022-11-03 04:02:53,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:02:53,769 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:02:53,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:02:53,771 INFO L225 Difference]: With dead ends: 1490 [2022-11-03 04:02:53,771 INFO L226 Difference]: Without dead ends: 1076 [2022-11-03 04:02:53,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 638 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2022-11-03 04:02:53,772 INFO L413 NwaCegarLoop]: 352 mSDtfsCounter, 727 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 730 SdHoareTripleChecker+Valid, 918 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:02:53,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [730 Valid, 918 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:02:53,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1076 states. [2022-11-03 04:02:53,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1076 to 844. [2022-11-03 04:02:53,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 827 states have (on average 1.343409915356711) internal successors, (1111), 827 states have internal predecessors, (1111), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 04:02:53,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1141 transitions. [2022-11-03 04:02:53,859 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1141 transitions. Word has length 218 [2022-11-03 04:02:53,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:02:53,860 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1141 transitions. [2022-11-03 04:02:53,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:02:53,860 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1141 transitions. [2022-11-03 04:02:53,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:02:53,863 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:02:53,863 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:02:53,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (48)] Forceful destruction successful, exit code 0 [2022-11-03 04:02:54,080 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (47)] Forceful destruction successful, exit code 0 [2022-11-03 04:02:54,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:02:54,269 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:02:54,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:02:54,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1867745683, now seen corresponding path program 1 times [2022-11-03 04:02:54,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:02:54,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1975598926] [2022-11-03 04:02:54,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:54,270 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:02:54,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:02:54,272 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:02:54,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2022-11-03 04:02:54,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:02:54,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:02:54,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:02:54,865 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 04:02:54,865 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:02:55,033 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 04:02:55,033 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:02:55,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1975598926] [2022-11-03 04:02:55,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1975598926] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:02:55,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1288221428] [2022-11-03 04:02:55,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:55,034 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:02:55,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:02:55,037 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:02:55,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (50)] Waiting until timeout for monitored process [2022-11-03 04:02:55,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:02:55,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 04:02:55,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:02:55,937 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:02:55,937 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:02:55,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1288221428] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:02:55,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:02:55,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 04:02:55,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276147146] [2022-11-03 04:02:55,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:02:55,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:02:55,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:02:55,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:02:55,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 04:02:55,938 INFO L87 Difference]: Start difference. First operand 844 states and 1141 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:02:56,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:02:56,214 INFO L93 Difference]: Finished difference Result 1596 states and 2170 transitions. [2022-11-03 04:02:56,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:02:56,215 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:02:56,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:02:56,217 INFO L225 Difference]: With dead ends: 1596 [2022-11-03 04:02:56,217 INFO L226 Difference]: Without dead ends: 1062 [2022-11-03 04:02:56,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 04:02:56,219 INFO L413 NwaCegarLoop]: 535 mSDtfsCounter, 565 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 568 SdHoareTripleChecker+Valid, 1103 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:02:56,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [568 Valid, 1103 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:02:56,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1062 states. [2022-11-03 04:02:56,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1062 to 844. [2022-11-03 04:02:56,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 827 states have (on average 1.3409915356711004) internal successors, (1109), 827 states have internal predecessors, (1109), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 04:02:56,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1139 transitions. [2022-11-03 04:02:56,304 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1139 transitions. Word has length 218 [2022-11-03 04:02:56,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:02:56,305 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1139 transitions. [2022-11-03 04:02:56,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:02:56,305 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1139 transitions. [2022-11-03 04:02:56,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:02:56,307 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:02:56,307 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:02:56,322 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (49)] Forceful destruction successful, exit code 0 [2022-11-03 04:02:56,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (50)] Forceful destruction successful, exit code 0 [2022-11-03 04:02:56,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 04:02:56,712 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:02:56,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:02:56,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1022029935, now seen corresponding path program 1 times [2022-11-03 04:02:56,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:02:56,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2126475192] [2022-11-03 04:02:56,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:56,714 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:02:56,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:02:56,715 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:02:56,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2022-11-03 04:02:57,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:02:57,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:02:57,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:02:57,368 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 04:02:57,369 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:02:57,575 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 04:02:57,576 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:02:57,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2126475192] [2022-11-03 04:02:57,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2126475192] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:02:57,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [437242710] [2022-11-03 04:02:57,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:57,577 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:02:57,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:02:57,579 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:02:57,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (52)] Waiting until timeout for monitored process [2022-11-03 04:02:58,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:02:58,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 04:02:58,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:02:58,515 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:02:58,515 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:02:58,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [437242710] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:02:58,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:02:58,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 04:02:58,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040016051] [2022-11-03 04:02:58,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:02:58,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:02:58,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:02:58,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:02:58,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 04:02:58,517 INFO L87 Difference]: Start difference. First operand 844 states and 1139 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:02:58,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:02:58,791 INFO L93 Difference]: Finished difference Result 1579 states and 2145 transitions. [2022-11-03 04:02:58,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:02:58,792 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:02:58,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:02:58,793 INFO L225 Difference]: With dead ends: 1579 [2022-11-03 04:02:58,793 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 04:02:58,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 04:02:58,795 INFO L413 NwaCegarLoop]: 534 mSDtfsCounter, 555 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 1102 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:02:58,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 1102 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:02:58,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 04:02:58,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 844. [2022-11-03 04:02:58,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 827 states have (on average 1.336154776299879) internal successors, (1105), 827 states have internal predecessors, (1105), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 04:02:58,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1135 transitions. [2022-11-03 04:02:58,876 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1135 transitions. Word has length 218 [2022-11-03 04:02:58,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:02:58,876 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1135 transitions. [2022-11-03 04:02:58,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:02:58,877 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1135 transitions. [2022-11-03 04:02:58,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:02:58,879 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:02:58,879 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:02:58,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (52)] Forceful destruction successful, exit code 0 [2022-11-03 04:02:59,098 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (51)] Ended with exit code 0 [2022-11-03 04:02:59,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:02:59,286 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:02:59,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:02:59,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1375957903, now seen corresponding path program 1 times [2022-11-03 04:02:59,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:02:59,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1018704147] [2022-11-03 04:02:59,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:59,288 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:02:59,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:02:59,289 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:02:59,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (53)] Waiting until timeout for monitored process [2022-11-03 04:02:59,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:02:59,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:02:59,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:02:59,870 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 04:02:59,870 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:03:00,046 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 04:03:00,047 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:03:00,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1018704147] [2022-11-03 04:03:00,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1018704147] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:03:00,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [365216124] [2022-11-03 04:03:00,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:00,047 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:03:00,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:03:00,048 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:03:00,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (54)] Waiting until timeout for monitored process [2022-11-03 04:03:00,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:00,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 04:03:00,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:03:00,972 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:03:00,972 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:03:00,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [365216124] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:03:00,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:03:00,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 04:03:00,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317276101] [2022-11-03 04:03:00,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:03:00,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:03:00,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:03:00,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:03:00,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 04:03:00,974 INFO L87 Difference]: Start difference. First operand 844 states and 1135 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:03:01,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:03:01,280 INFO L93 Difference]: Finished difference Result 1571 states and 2128 transitions. [2022-11-03 04:03:01,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:03:01,281 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:03:01,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:03:01,283 INFO L225 Difference]: With dead ends: 1571 [2022-11-03 04:03:01,283 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 04:03:01,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 04:03:01,284 INFO L413 NwaCegarLoop]: 533 mSDtfsCounter, 549 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 552 SdHoareTripleChecker+Valid, 1102 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:03:01,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [552 Valid, 1102 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:03:01,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 04:03:01,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 844. [2022-11-03 04:03:01,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 827 states have (on average 1.3313180169286578) internal successors, (1101), 827 states have internal predecessors, (1101), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 04:03:01,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1131 transitions. [2022-11-03 04:03:01,382 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1131 transitions. Word has length 218 [2022-11-03 04:03:01,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:03:01,382 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1131 transitions. [2022-11-03 04:03:01,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:03:01,382 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1131 transitions. [2022-11-03 04:03:01,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:03:01,384 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:03:01,385 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:03:01,397 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (53)] Ended with exit code 0 [2022-11-03 04:03:01,595 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (54)] Ended with exit code 0 [2022-11-03 04:03:01,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 04:03:01,791 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:03:01,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:03:01,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1531938445, now seen corresponding path program 1 times [2022-11-03 04:03:01,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:03:01,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [152668244] [2022-11-03 04:03:01,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:01,793 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:03:01,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:03:01,795 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:03:01,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (55)] Waiting until timeout for monitored process [2022-11-03 04:03:02,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:02,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:03:02,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:03:02,405 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 04:03:02,406 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:03:02,583 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 04:03:02,583 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:03:02,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [152668244] [2022-11-03 04:03:02,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [152668244] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:03:02,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1388068070] [2022-11-03 04:03:02,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:02,584 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:03:02,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:03:02,587 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:03:02,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (56)] Waiting until timeout for monitored process [2022-11-03 04:03:03,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:03,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 04:03:03,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:03:03,540 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:03:03,541 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:03:03,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1388068070] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:03:03,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:03:03,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 04:03:03,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598259793] [2022-11-03 04:03:03,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:03:03,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:03:03,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:03:03,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:03:03,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 04:03:03,542 INFO L87 Difference]: Start difference. First operand 844 states and 1131 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:03:03,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:03:03,875 INFO L93 Difference]: Finished difference Result 1563 states and 2111 transitions. [2022-11-03 04:03:03,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:03:03,875 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:03:03,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:03:03,877 INFO L225 Difference]: With dead ends: 1563 [2022-11-03 04:03:03,877 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 04:03:03,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 04:03:03,879 INFO L413 NwaCegarLoop]: 530 mSDtfsCounter, 543 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 1096 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:03:03,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [546 Valid, 1096 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:03:03,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 04:03:03,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 844. [2022-11-03 04:03:03,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 827 states have (on average 1.3264812575574365) internal successors, (1097), 827 states have internal predecessors, (1097), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 04:03:03,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1127 transitions. [2022-11-03 04:03:03,974 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1127 transitions. Word has length 218 [2022-11-03 04:03:03,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:03:03,975 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1127 transitions. [2022-11-03 04:03:03,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:03:03,975 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1127 transitions. [2022-11-03 04:03:03,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:03:03,977 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:03:03,977 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:03:03,999 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (55)] Ended with exit code 0 [2022-11-03 04:03:04,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (56)] Forceful destruction successful, exit code 0 [2022-11-03 04:03:04,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 04:03:04,395 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:03:04,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:03:04,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1462290571, now seen corresponding path program 1 times [2022-11-03 04:03:04,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:03:04,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [196566778] [2022-11-03 04:03:04,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:04,396 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:03:04,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:03:04,397 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:03:04,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (57)] Waiting until timeout for monitored process [2022-11-03 04:03:04,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:04,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:03:04,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:03:05,017 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 04:03:05,017 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:03:05,191 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 04:03:05,191 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:03:05,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [196566778] [2022-11-03 04:03:05,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [196566778] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:03:05,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [40044476] [2022-11-03 04:03:05,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:05,192 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:03:05,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:03:05,193 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:03:05,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (58)] Waiting until timeout for monitored process [2022-11-03 04:03:05,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:06,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 04:03:06,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:03:06,120 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:03:06,120 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:03:06,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [40044476] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:03:06,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:03:06,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 04:03:06,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421335819] [2022-11-03 04:03:06,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:03:06,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:03:06,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:03:06,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:03:06,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 04:03:06,122 INFO L87 Difference]: Start difference. First operand 844 states and 1127 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:03:06,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:03:06,396 INFO L93 Difference]: Finished difference Result 1555 states and 2091 transitions. [2022-11-03 04:03:06,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:03:06,397 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:03:06,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:03:06,399 INFO L225 Difference]: With dead ends: 1555 [2022-11-03 04:03:06,399 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 04:03:06,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 04:03:06,400 INFO L413 NwaCegarLoop]: 528 mSDtfsCounter, 537 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 540 SdHoareTripleChecker+Valid, 1093 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:03:06,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [540 Valid, 1093 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:03:06,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 04:03:06,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 844. [2022-11-03 04:03:06,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 827 states have (on average 1.3216444981862152) internal successors, (1093), 827 states have internal predecessors, (1093), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 04:03:06,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1123 transitions. [2022-11-03 04:03:06,486 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1123 transitions. Word has length 218 [2022-11-03 04:03:06,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:03:06,487 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1123 transitions. [2022-11-03 04:03:06,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:03:06,487 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1123 transitions. [2022-11-03 04:03:06,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:03:06,489 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:03:06,489 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:03:06,495 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (58)] Ended with exit code 0 [2022-11-03 04:03:06,707 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (57)] Ended with exit code 0 [2022-11-03 04:03:06,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:03:06,896 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:03:06,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:03:06,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1098824073, now seen corresponding path program 1 times [2022-11-03 04:03:06,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:03:06,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1548324507] [2022-11-03 04:03:06,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:06,897 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:03:06,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:03:06,898 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:03:06,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (59)] Waiting until timeout for monitored process [2022-11-03 04:03:07,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:07,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:03:07,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:03:07,484 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 04:03:07,484 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:03:07,647 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 04:03:07,647 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:03:07,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1548324507] [2022-11-03 04:03:07,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1548324507] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:03:07,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [708472036] [2022-11-03 04:03:07,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:07,648 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:03:07,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:03:07,648 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:03:07,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (60)] Waiting until timeout for monitored process [2022-11-03 04:03:08,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:08,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 04:03:08,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:03:08,601 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:03:08,601 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:03:08,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [708472036] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:03:08,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:03:08,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 04:03:08,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579891838] [2022-11-03 04:03:08,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:03:08,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:03:08,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:03:08,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:03:08,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 04:03:08,603 INFO L87 Difference]: Start difference. First operand 844 states and 1123 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:03:08,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:03:08,919 INFO L93 Difference]: Finished difference Result 1547 states and 2074 transitions. [2022-11-03 04:03:08,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:03:08,919 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:03:08,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:03:08,921 INFO L225 Difference]: With dead ends: 1547 [2022-11-03 04:03:08,921 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 04:03:08,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 04:03:08,923 INFO L413 NwaCegarLoop]: 527 mSDtfsCounter, 531 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 1093 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:03:08,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 1093 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:03:08,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 04:03:09,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 844. [2022-11-03 04:03:09,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 827 states have (on average 1.316807738814994) internal successors, (1089), 827 states have internal predecessors, (1089), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 04:03:09,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1119 transitions. [2022-11-03 04:03:09,022 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1119 transitions. Word has length 218 [2022-11-03 04:03:09,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:03:09,022 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1119 transitions. [2022-11-03 04:03:09,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:03:09,022 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1119 transitions. [2022-11-03 04:03:09,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:03:09,024 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:03:09,025 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:03:09,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (60)] Forceful destruction successful, exit code 0 [2022-11-03 04:03:09,248 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (59)] Ended with exit code 0 [2022-11-03 04:03:09,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:03:09,431 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:03:09,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:03:09,431 INFO L85 PathProgramCache]: Analyzing trace with hash -2046876039, now seen corresponding path program 1 times [2022-11-03 04:03:09,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:03:09,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [57123757] [2022-11-03 04:03:09,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:09,433 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:03:09,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:03:09,433 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:03:09,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (61)] Waiting until timeout for monitored process [2022-11-03 04:03:09,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:09,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:03:09,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:03:10,010 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 04:03:10,010 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:03:10,197 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 04:03:10,197 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:03:10,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [57123757] [2022-11-03 04:03:10,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [57123757] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:03:10,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [816753383] [2022-11-03 04:03:10,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:10,198 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:03:10,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:03:10,199 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:03:10,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (62)] Waiting until timeout for monitored process [2022-11-03 04:03:11,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:11,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 04:03:11,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:03:11,166 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:03:11,166 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:03:11,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [816753383] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:03:11,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:03:11,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 04:03:11,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65210756] [2022-11-03 04:03:11,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:03:11,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:03:11,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:03:11,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:03:11,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 04:03:11,168 INFO L87 Difference]: Start difference. First operand 844 states and 1119 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:03:11,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:03:11,499 INFO L93 Difference]: Finished difference Result 1539 states and 2057 transitions. [2022-11-03 04:03:11,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:03:11,499 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:03:11,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:03:11,501 INFO L225 Difference]: With dead ends: 1539 [2022-11-03 04:03:11,502 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 04:03:11,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 04:03:11,503 INFO L413 NwaCegarLoop]: 524 mSDtfsCounter, 525 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 528 SdHoareTripleChecker+Valid, 1087 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:03:11,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [528 Valid, 1087 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:03:11,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 04:03:11,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 844. [2022-11-03 04:03:11,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 827 states have (on average 1.3119709794437726) internal successors, (1085), 827 states have internal predecessors, (1085), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 04:03:11,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1115 transitions. [2022-11-03 04:03:11,604 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1115 transitions. Word has length 218 [2022-11-03 04:03:11,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:03:11,604 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1115 transitions. [2022-11-03 04:03:11,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:03:11,605 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1115 transitions. [2022-11-03 04:03:11,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:03:11,607 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:03:11,607 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:03:11,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (62)] Forceful destruction successful, exit code 0 [2022-11-03 04:03:11,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (61)] Forceful destruction successful, exit code 0 [2022-11-03 04:03:12,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:03:12,023 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:03:12,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:03:12,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1541494651, now seen corresponding path program 1 times [2022-11-03 04:03:12,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:03:12,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1262119172] [2022-11-03 04:03:12,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:12,024 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:03:12,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:03:12,025 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:03:12,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (63)] Waiting until timeout for monitored process [2022-11-03 04:03:12,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:12,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:03:12,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:03:12,621 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 04:03:12,621 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:03:12,813 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 04:03:12,813 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:03:12,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1262119172] [2022-11-03 04:03:12,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1262119172] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:03:12,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1153232962] [2022-11-03 04:03:12,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:12,814 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:03:12,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:03:12,815 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:03:12,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (64)] Waiting until timeout for monitored process [2022-11-03 04:03:13,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:13,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 04:03:13,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:03:13,788 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:03:13,789 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:03:13,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1153232962] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:03:13,789 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:03:13,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 04:03:13,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112389624] [2022-11-03 04:03:13,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:03:13,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:03:13,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:03:13,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:03:13,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 04:03:13,790 INFO L87 Difference]: Start difference. First operand 844 states and 1115 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:03:14,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:03:14,070 INFO L93 Difference]: Finished difference Result 1531 states and 2040 transitions. [2022-11-03 04:03:14,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:03:14,071 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:03:14,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:03:14,073 INFO L225 Difference]: With dead ends: 1531 [2022-11-03 04:03:14,073 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 04:03:14,074 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 04:03:14,074 INFO L413 NwaCegarLoop]: 522 mSDtfsCounter, 519 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 1084 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:03:14,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [522 Valid, 1084 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:03:14,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 04:03:14,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 844. [2022-11-03 04:03:14,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 827 states have (on average 1.3071342200725513) internal successors, (1081), 827 states have internal predecessors, (1081), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 04:03:14,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1111 transitions. [2022-11-03 04:03:14,140 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1111 transitions. Word has length 218 [2022-11-03 04:03:14,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:03:14,141 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1111 transitions. [2022-11-03 04:03:14,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:03:14,141 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1111 transitions. [2022-11-03 04:03:14,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:03:14,142 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:03:14,143 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:03:14,148 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (64)] Ended with exit code 0 [2022-11-03 04:03:14,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (63)] Forceful destruction successful, exit code 0 [2022-11-03 04:03:14,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:03:14,547 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:03:14,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:03:14,548 INFO L85 PathProgramCache]: Analyzing trace with hash 2029541757, now seen corresponding path program 1 times [2022-11-03 04:03:14,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:03:14,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [264811045] [2022-11-03 04:03:14,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:14,549 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:03:14,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:03:14,550 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:03:14,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (65)] Waiting until timeout for monitored process [2022-11-03 04:03:15,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:15,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:03:15,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:03:15,166 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 04:03:15,166 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:03:15,326 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 04:03:15,326 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:03:15,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [264811045] [2022-11-03 04:03:15,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [264811045] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:03:15,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [682742457] [2022-11-03 04:03:15,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:15,327 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:03:15,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:03:15,328 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:03:15,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (66)] Waiting until timeout for monitored process [2022-11-03 04:03:16,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:16,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 04:03:16,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:03:16,314 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:03:16,315 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:03:16,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [682742457] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:03:16,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:03:16,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 04:03:16,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504338425] [2022-11-03 04:03:16,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:03:16,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:03:16,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:03:16,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:03:16,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 04:03:16,317 INFO L87 Difference]: Start difference. First operand 844 states and 1111 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:03:16,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:03:16,600 INFO L93 Difference]: Finished difference Result 1515 states and 2016 transitions. [2022-11-03 04:03:16,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:03:16,600 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:03:16,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:03:16,602 INFO L225 Difference]: With dead ends: 1515 [2022-11-03 04:03:16,602 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 04:03:16,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 04:03:16,604 INFO L413 NwaCegarLoop]: 521 mSDtfsCounter, 509 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 1083 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:03:16,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 1083 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:03:16,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 04:03:16,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 844. [2022-11-03 04:03:16,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 827 states have (on average 1.30229746070133) internal successors, (1077), 827 states have internal predecessors, (1077), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 04:03:16,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1107 transitions. [2022-11-03 04:03:16,696 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1107 transitions. Word has length 218 [2022-11-03 04:03:16,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:03:16,697 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1107 transitions. [2022-11-03 04:03:16,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:03:16,697 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1107 transitions. [2022-11-03 04:03:16,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:03:16,699 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:03:16,700 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:03:16,706 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (66)] Forceful destruction successful, exit code 0 [2022-11-03 04:03:16,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (65)] Forceful destruction successful, exit code 0 [2022-11-03 04:03:17,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:03:17,106 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:03:17,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:03:17,107 INFO L85 PathProgramCache]: Analyzing trace with hash -538280577, now seen corresponding path program 1 times [2022-11-03 04:03:17,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:03:17,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1506039808] [2022-11-03 04:03:17,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:17,108 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:03:17,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:03:17,112 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:03:17,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (67)] Waiting until timeout for monitored process [2022-11-03 04:03:17,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:17,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:03:17,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:03:17,841 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 04:03:17,842 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:03:18,042 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 04:03:18,042 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:03:18,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1506039808] [2022-11-03 04:03:18,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1506039808] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:03:18,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1533066611] [2022-11-03 04:03:18,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:18,043 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:03:18,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:03:18,046 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:03:18,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (68)] Waiting until timeout for monitored process [2022-11-03 04:03:18,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:18,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 04:03:18,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:03:19,055 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:03:19,055 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:03:19,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1533066611] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:03:19,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:03:19,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 04:03:19,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420150235] [2022-11-03 04:03:19,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:03:19,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:03:19,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:03:19,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:03:19,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 04:03:19,057 INFO L87 Difference]: Start difference. First operand 844 states and 1107 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:03:19,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:03:19,398 INFO L93 Difference]: Finished difference Result 1507 states and 1999 transitions. [2022-11-03 04:03:19,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:03:19,398 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:03:19,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:03:19,400 INFO L225 Difference]: With dead ends: 1507 [2022-11-03 04:03:19,401 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 04:03:19,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 04:03:19,402 INFO L413 NwaCegarLoop]: 519 mSDtfsCounter, 503 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 506 SdHoareTripleChecker+Valid, 1080 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:03:19,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [506 Valid, 1080 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:03:19,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 04:03:19,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 844. [2022-11-03 04:03:19,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 827 states have (on average 1.297460701330109) internal successors, (1073), 827 states have internal predecessors, (1073), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 04:03:19,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1103 transitions. [2022-11-03 04:03:19,506 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1103 transitions. Word has length 218 [2022-11-03 04:03:19,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:03:19,506 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1103 transitions. [2022-11-03 04:03:19,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:03:19,507 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1103 transitions. [2022-11-03 04:03:19,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:03:19,509 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:03:19,509 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:03:19,527 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (67)] Ended with exit code 0 [2022-11-03 04:03:19,735 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (68)] Forceful destruction successful, exit code 0 [2022-11-03 04:03:19,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 04:03:19,923 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:03:19,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:03:19,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1576865151, now seen corresponding path program 1 times [2022-11-03 04:03:19,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:03:19,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [66893289] [2022-11-03 04:03:19,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:19,925 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:03:19,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:03:19,927 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:03:19,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (69)] Waiting until timeout for monitored process [2022-11-03 04:03:20,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:20,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:03:20,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:03:20,544 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 04:03:20,544 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:03:20,704 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 04:03:20,704 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:03:20,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [66893289] [2022-11-03 04:03:20,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [66893289] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:03:20,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [79198678] [2022-11-03 04:03:20,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:20,705 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:03:20,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:03:20,706 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:03:20,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (70)] Waiting until timeout for monitored process [2022-11-03 04:03:21,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:21,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 04:03:21,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:03:21,717 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:03:21,717 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:03:21,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [79198678] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:03:21,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:03:21,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 04:03:21,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968549509] [2022-11-03 04:03:21,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:03:21,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:03:21,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:03:21,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:03:21,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 04:03:21,719 INFO L87 Difference]: Start difference. First operand 844 states and 1103 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:03:22,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:03:22,021 INFO L93 Difference]: Finished difference Result 1499 states and 1982 transitions. [2022-11-03 04:03:22,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:03:22,022 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:03:22,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:03:22,024 INFO L225 Difference]: With dead ends: 1499 [2022-11-03 04:03:22,024 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 04:03:22,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 04:03:22,025 INFO L413 NwaCegarLoop]: 518 mSDtfsCounter, 497 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 500 SdHoareTripleChecker+Valid, 1080 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:03:22,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [500 Valid, 1080 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:03:22,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 04:03:22,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 844. [2022-11-03 04:03:22,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 827 states have (on average 1.2926239419588876) internal successors, (1069), 827 states have internal predecessors, (1069), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 04:03:22,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1099 transitions. [2022-11-03 04:03:22,096 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1099 transitions. Word has length 218 [2022-11-03 04:03:22,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:03:22,096 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1099 transitions. [2022-11-03 04:03:22,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:03:22,096 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1099 transitions. [2022-11-03 04:03:22,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:03:22,097 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:03:22,098 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:03:22,116 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (69)] Ended with exit code 0 [2022-11-03 04:03:22,303 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (70)] Ended with exit code 0 [2022-11-03 04:03:22,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 04:03:22,499 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:03:22,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:03:22,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1458423677, now seen corresponding path program 1 times [2022-11-03 04:03:22,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:03:22,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1876446279] [2022-11-03 04:03:22,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:22,500 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:03:22,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:03:22,501 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:03:22,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (71)] Waiting until timeout for monitored process [2022-11-03 04:03:23,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:23,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:03:23,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:03:23,116 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 04:03:23,116 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:03:23,281 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 04:03:23,281 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:03:23,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1876446279] [2022-11-03 04:03:23,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1876446279] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:03:23,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1063171252] [2022-11-03 04:03:23,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:23,282 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:03:23,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:03:23,284 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:03:23,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (72)] Waiting until timeout for monitored process [2022-11-03 04:03:24,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:24,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 04:03:24,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:03:24,277 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:03:24,277 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:03:24,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1063171252] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:03:24,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:03:24,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 04:03:24,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820154257] [2022-11-03 04:03:24,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:03:24,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:03:24,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:03:24,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:03:24,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 04:03:24,279 INFO L87 Difference]: Start difference. First operand 844 states and 1099 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:03:24,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:03:24,557 INFO L93 Difference]: Finished difference Result 1491 states and 1962 transitions. [2022-11-03 04:03:24,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:03:24,557 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:03:24,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:03:24,559 INFO L225 Difference]: With dead ends: 1491 [2022-11-03 04:03:24,559 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 04:03:24,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 04:03:24,560 INFO L413 NwaCegarLoop]: 515 mSDtfsCounter, 491 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 494 SdHoareTripleChecker+Valid, 1074 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:03:24,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [494 Valid, 1074 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:03:24,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 04:03:24,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 844. [2022-11-03 04:03:24,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 827 states have (on average 1.2877871825876663) internal successors, (1065), 827 states have internal predecessors, (1065), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 04:03:24,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1095 transitions. [2022-11-03 04:03:24,639 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1095 transitions. Word has length 218 [2022-11-03 04:03:24,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:03:24,640 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1095 transitions. [2022-11-03 04:03:24,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:03:24,640 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1095 transitions. [2022-11-03 04:03:24,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:03:24,642 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:03:24,642 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:03:24,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (71)] Forceful destruction successful, exit code 0 [2022-11-03 04:03:24,870 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (72)] Forceful destruction successful, exit code 0 [2022-11-03 04:03:25,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 04:03:25,066 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:03:25,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:03:25,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1529401221, now seen corresponding path program 1 times [2022-11-03 04:03:25,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:03:25,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1297322760] [2022-11-03 04:03:25,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:25,067 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:03:25,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:03:25,069 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:03:25,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (73)] Waiting until timeout for monitored process [2022-11-03 04:03:25,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:25,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:03:25,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:03:25,738 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 04:03:25,739 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:03:25,911 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 04:03:25,911 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:03:25,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1297322760] [2022-11-03 04:03:25,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1297322760] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:03:25,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1291104809] [2022-11-03 04:03:25,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:25,911 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:03:25,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:03:25,912 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:03:25,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (74)] Waiting until timeout for monitored process [2022-11-03 04:03:26,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:26,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 04:03:26,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:03:26,930 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:03:26,930 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:03:26,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1291104809] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:03:26,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:03:26,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 04:03:26,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934483594] [2022-11-03 04:03:26,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:03:26,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:03:26,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:03:26,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:03:26,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 04:03:26,932 INFO L87 Difference]: Start difference. First operand 844 states and 1095 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:03:27,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:03:27,243 INFO L93 Difference]: Finished difference Result 1483 states and 1945 transitions. [2022-11-03 04:03:27,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:03:27,244 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:03:27,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:03:27,246 INFO L225 Difference]: With dead ends: 1483 [2022-11-03 04:03:27,246 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 04:03:27,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 04:03:27,248 INFO L413 NwaCegarLoop]: 514 mSDtfsCounter, 485 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 1074 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:03:27,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [488 Valid, 1074 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:03:27,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 04:03:27,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 844. [2022-11-03 04:03:27,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 827 states have (on average 1.282950423216445) internal successors, (1061), 827 states have internal predecessors, (1061), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 04:03:27,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1091 transitions. [2022-11-03 04:03:27,360 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1091 transitions. Word has length 218 [2022-11-03 04:03:27,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:03:27,361 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1091 transitions. [2022-11-03 04:03:27,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:03:27,361 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1091 transitions. [2022-11-03 04:03:27,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:03:27,363 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:03:27,364 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:03:27,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (74)] Forceful destruction successful, exit code 0 [2022-11-03 04:03:27,583 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (73)] Forceful destruction successful, exit code 0 [2022-11-03 04:03:27,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:03:27,771 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:03:27,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:03:27,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1164494969, now seen corresponding path program 1 times [2022-11-03 04:03:27,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:03:27,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1957171393] [2022-11-03 04:03:27,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:27,773 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:03:27,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:03:27,774 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:03:27,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (75)] Waiting until timeout for monitored process [2022-11-03 04:03:28,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:28,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:03:28,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:03:28,412 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 04:03:28,412 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:03:28,585 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 04:03:28,585 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:03:28,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1957171393] [2022-11-03 04:03:28,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1957171393] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:03:28,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1077213974] [2022-11-03 04:03:28,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:28,586 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:03:28,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:03:28,587 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:03:28,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (76)] Waiting until timeout for monitored process [2022-11-03 04:03:29,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:29,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 04:03:29,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:03:29,627 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:03:29,627 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:03:29,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1077213974] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:03:29,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:03:29,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 04:03:29,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310931501] [2022-11-03 04:03:29,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:03:29,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:03:29,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:03:29,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:03:29,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 04:03:29,629 INFO L87 Difference]: Start difference. First operand 844 states and 1091 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:03:29,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:03:29,908 INFO L93 Difference]: Finished difference Result 1475 states and 1928 transitions. [2022-11-03 04:03:29,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:03:29,908 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:03:29,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:03:29,910 INFO L225 Difference]: With dead ends: 1475 [2022-11-03 04:03:29,910 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 04:03:29,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 04:03:29,911 INFO L413 NwaCegarLoop]: 511 mSDtfsCounter, 479 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 1068 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:03:29,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [482 Valid, 1068 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:03:29,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 04:03:29,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 844. [2022-11-03 04:03:29,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 827 states have (on average 1.2781136638452237) internal successors, (1057), 827 states have internal predecessors, (1057), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 04:03:29,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1087 transitions. [2022-11-03 04:03:29,975 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1087 transitions. Word has length 218 [2022-11-03 04:03:29,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:03:29,975 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1087 transitions. [2022-11-03 04:03:29,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:03:29,975 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1087 transitions. [2022-11-03 04:03:29,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:03:29,976 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:03:29,976 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:03:29,989 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (75)] Forceful destruction successful, exit code 0 [2022-11-03 04:03:30,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (76)] Forceful destruction successful, exit code 0 [2022-11-03 04:03:30,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 04:03:30,378 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:03:30,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:03:30,378 INFO L85 PathProgramCache]: Analyzing trace with hash -2048003959, now seen corresponding path program 1 times [2022-11-03 04:03:30,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:03:30,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1872144308] [2022-11-03 04:03:30,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:30,379 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:03:30,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:03:30,380 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:03:30,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (77)] Waiting until timeout for monitored process [2022-11-03 04:03:30,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:30,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:03:30,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:03:31,008 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 04:03:31,008 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:03:31,173 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 04:03:31,173 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:03:31,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1872144308] [2022-11-03 04:03:31,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1872144308] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:03:31,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [88778416] [2022-11-03 04:03:31,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:31,174 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:03:31,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:03:31,175 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:03:31,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (78)] Waiting until timeout for monitored process [2022-11-03 04:03:32,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:32,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 04:03:32,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:03:32,190 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:03:32,190 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:03:32,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [88778416] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:03:32,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:03:32,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 04:03:32,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666189802] [2022-11-03 04:03:32,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:03:32,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:03:32,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:03:32,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:03:32,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 04:03:32,192 INFO L87 Difference]: Start difference. First operand 844 states and 1087 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:03:32,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:03:32,471 INFO L93 Difference]: Finished difference Result 1467 states and 1911 transitions. [2022-11-03 04:03:32,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:03:32,471 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:03:32,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:03:32,473 INFO L225 Difference]: With dead ends: 1467 [2022-11-03 04:03:32,473 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 04:03:32,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 04:03:32,474 INFO L413 NwaCegarLoop]: 510 mSDtfsCounter, 473 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 1068 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:03:32,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [476 Valid, 1068 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:03:32,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 04:03:32,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 844. [2022-11-03 04:03:32,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 827 states have (on average 1.2732769044740024) internal successors, (1053), 827 states have internal predecessors, (1053), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 04:03:32,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1083 transitions. [2022-11-03 04:03:32,554 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1083 transitions. Word has length 218 [2022-11-03 04:03:32,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:03:32,555 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1083 transitions. [2022-11-03 04:03:32,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:03:32,555 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1083 transitions. [2022-11-03 04:03:32,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:03:32,557 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:03:32,557 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:03:32,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (77)] Forceful destruction successful, exit code 0 [2022-11-03 04:03:32,779 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (78)] Ended with exit code 0 [2022-11-03 04:03:32,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 04:03:32,975 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:03:32,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:03:32,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1476229771, now seen corresponding path program 1 times [2022-11-03 04:03:32,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:03:32,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1567965499] [2022-11-03 04:03:32,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:32,976 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:03:32,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:03:32,977 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:03:32,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (79)] Waiting until timeout for monitored process [2022-11-03 04:03:33,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:33,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:03:33,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:03:33,592 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 04:03:33,592 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:03:33,763 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 04:03:33,764 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:03:33,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1567965499] [2022-11-03 04:03:33,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1567965499] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:03:33,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1918913178] [2022-11-03 04:03:33,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:33,764 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:03:33,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:03:33,765 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:03:33,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (80)] Waiting until timeout for monitored process [2022-11-03 04:03:34,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:34,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 04:03:34,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:03:34,798 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:03:34,798 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:03:34,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1918913178] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:03:34,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:03:34,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 04:03:34,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204019221] [2022-11-03 04:03:34,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:03:34,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:03:34,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:03:34,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:03:34,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 04:03:34,800 INFO L87 Difference]: Start difference. First operand 844 states and 1083 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:03:35,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:03:35,090 INFO L93 Difference]: Finished difference Result 1467 states and 1907 transitions. [2022-11-03 04:03:35,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:03:35,090 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:03:35,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:03:35,091 INFO L225 Difference]: With dead ends: 1467 [2022-11-03 04:03:35,091 INFO L226 Difference]: Without dead ends: 1061 [2022-11-03 04:03:35,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 04:03:35,092 INFO L413 NwaCegarLoop]: 508 mSDtfsCounter, 465 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 468 SdHoareTripleChecker+Valid, 1064 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:03:35,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [468 Valid, 1064 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:03:35,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1061 states. [2022-11-03 04:03:35,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1061 to 844. [2022-11-03 04:03:35,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 827 states have (on average 1.2708585247883917) internal successors, (1051), 827 states have internal predecessors, (1051), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 04:03:35,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1081 transitions. [2022-11-03 04:03:35,154 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1081 transitions. Word has length 218 [2022-11-03 04:03:35,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:03:35,154 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1081 transitions. [2022-11-03 04:03:35,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:03:35,154 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1081 transitions. [2022-11-03 04:03:35,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:03:35,156 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:03:35,156 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:03:35,161 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (80)] Forceful destruction successful, exit code 0 [2022-11-03 04:03:35,368 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (79)] Ended with exit code 0 [2022-11-03 04:03:35,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:03:35,558 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:03:35,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:03:35,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1493881331, now seen corresponding path program 1 times [2022-11-03 04:03:35,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:03:35,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1835732597] [2022-11-03 04:03:35,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:35,559 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:03:35,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:03:35,560 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:03:35,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (81)] Waiting until timeout for monitored process [2022-11-03 04:03:36,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:36,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:03:36,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:03:36,176 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 04:03:36,176 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:03:36,378 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 04:03:36,378 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:03:36,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1835732597] [2022-11-03 04:03:36,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1835732597] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:03:36,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [488175455] [2022-11-03 04:03:36,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:36,379 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:03:36,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:03:36,381 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:03:36,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (82)] Waiting until timeout for monitored process [2022-11-03 04:03:37,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:37,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 04:03:37,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:03:37,424 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:03:37,424 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:03:37,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [488175455] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:03:37,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:03:37,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 04:03:37,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776013610] [2022-11-03 04:03:37,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:03:37,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:03:37,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:03:37,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:03:37,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 04:03:37,426 INFO L87 Difference]: Start difference. First operand 844 states and 1081 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:03:37,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:03:37,729 INFO L93 Difference]: Finished difference Result 1481 states and 1922 transitions. [2022-11-03 04:03:37,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:03:37,729 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:03:37,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:03:37,731 INFO L225 Difference]: With dead ends: 1481 [2022-11-03 04:03:37,731 INFO L226 Difference]: Without dead ends: 1075 [2022-11-03 04:03:37,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 04:03:37,732 INFO L413 NwaCegarLoop]: 507 mSDtfsCounter, 455 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 1063 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:03:37,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 1063 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:03:37,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1075 states. [2022-11-03 04:03:37,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1075 to 844. [2022-11-03 04:03:37,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 827 states have (on average 1.2660217654171706) internal successors, (1047), 827 states have internal predecessors, (1047), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 04:03:37,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1077 transitions. [2022-11-03 04:03:37,845 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1077 transitions. Word has length 218 [2022-11-03 04:03:37,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:03:37,845 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1077 transitions. [2022-11-03 04:03:37,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:03:37,845 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1077 transitions. [2022-11-03 04:03:37,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:03:37,846 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:03:37,847 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:03:37,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (82)] Forceful destruction successful, exit code 0 [2022-11-03 04:03:38,059 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (81)] Ended with exit code 0 [2022-11-03 04:03:38,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:03:38,247 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:03:38,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:03:38,248 INFO L85 PathProgramCache]: Analyzing trace with hash 240223119, now seen corresponding path program 1 times [2022-11-03 04:03:38,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:03:38,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1688920385] [2022-11-03 04:03:38,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:38,249 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:03:38,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:03:38,250 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:03:38,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (83)] Waiting until timeout for monitored process [2022-11-03 04:03:38,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:38,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:03:38,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:03:38,876 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 04:03:38,876 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:03:39,046 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 04:03:39,046 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:03:39,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1688920385] [2022-11-03 04:03:39,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1688920385] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:03:39,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1315354284] [2022-11-03 04:03:39,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:39,047 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:03:39,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:03:39,048 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:03:39,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (84)] Waiting until timeout for monitored process [2022-11-03 04:03:39,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:39,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 04:03:39,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:03:40,115 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:03:40,115 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:03:40,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1315354284] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:03:40,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:03:40,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 04:03:40,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527826176] [2022-11-03 04:03:40,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:03:40,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:03:40,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:03:40,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:03:40,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 04:03:40,117 INFO L87 Difference]: Start difference. First operand 844 states and 1077 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:03:40,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:03:40,423 INFO L93 Difference]: Finished difference Result 1505 states and 1947 transitions. [2022-11-03 04:03:40,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:03:40,424 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:03:40,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:03:40,425 INFO L225 Difference]: With dead ends: 1505 [2022-11-03 04:03:40,425 INFO L226 Difference]: Without dead ends: 1099 [2022-11-03 04:03:40,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 04:03:40,426 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 445 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 1062 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:03:40,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [448 Valid, 1062 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:03:40,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1099 states. [2022-11-03 04:03:40,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1099 to 848. [2022-11-03 04:03:40,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 848 states, 831 states have (on average 1.2623345367027679) internal successors, (1049), 831 states have internal predecessors, (1049), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 04:03:40,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1079 transitions. [2022-11-03 04:03:40,516 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1079 transitions. Word has length 218 [2022-11-03 04:03:40,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:03:40,517 INFO L495 AbstractCegarLoop]: Abstraction has 848 states and 1079 transitions. [2022-11-03 04:03:40,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:03:40,517 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1079 transitions. [2022-11-03 04:03:40,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:03:40,519 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:03:40,519 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:03:40,532 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (84)] Forceful destruction successful, exit code 0 [2022-11-03 04:03:40,737 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (83)] Ended with exit code 0 [2022-11-03 04:03:40,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:03:40,926 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:03:40,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:03:40,927 INFO L85 PathProgramCache]: Analyzing trace with hash -975930607, now seen corresponding path program 1 times [2022-11-03 04:03:40,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:03:40,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [265916507] [2022-11-03 04:03:40,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:40,928 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:03:40,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:03:40,929 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:03:40,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (85)] Waiting until timeout for monitored process [2022-11-03 04:03:41,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:41,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:03:41,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:03:41,543 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 04:03:41,543 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:03:41,729 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 04:03:41,729 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:03:41,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [265916507] [2022-11-03 04:03:41,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [265916507] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:03:41,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [456982113] [2022-11-03 04:03:41,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:41,729 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:03:41,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:03:41,731 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:03:41,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (86)] Waiting until timeout for monitored process [2022-11-03 04:03:42,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:42,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 04:03:42,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:03:42,831 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:03:42,831 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:03:42,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [456982113] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:03:42,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:03:42,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 04:03:42,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370287703] [2022-11-03 04:03:42,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:03:42,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:03:42,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:03:42,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:03:42,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 04:03:42,833 INFO L87 Difference]: Start difference. First operand 848 states and 1079 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:03:43,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:03:43,121 INFO L93 Difference]: Finished difference Result 1517 states and 1953 transitions. [2022-11-03 04:03:43,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:03:43,121 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:03:43,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:03:43,123 INFO L225 Difference]: With dead ends: 1517 [2022-11-03 04:03:43,123 INFO L226 Difference]: Without dead ends: 1111 [2022-11-03 04:03:43,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 04:03:43,124 INFO L413 NwaCegarLoop]: 504 mSDtfsCounter, 439 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 1059 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:03:43,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [442 Valid, 1059 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:03:43,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1111 states. [2022-11-03 04:03:43,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1111 to 852. [2022-11-03 04:03:43,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 852 states, 835 states have (on average 1.2586826347305389) internal successors, (1051), 835 states have internal predecessors, (1051), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 04:03:43,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 852 states to 852 states and 1081 transitions. [2022-11-03 04:03:43,187 INFO L78 Accepts]: Start accepts. Automaton has 852 states and 1081 transitions. Word has length 218 [2022-11-03 04:03:43,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:03:43,187 INFO L495 AbstractCegarLoop]: Abstraction has 852 states and 1081 transitions. [2022-11-03 04:03:43,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:03:43,187 INFO L276 IsEmpty]: Start isEmpty. Operand 852 states and 1081 transitions. [2022-11-03 04:03:43,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:03:43,189 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:03:43,189 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:03:43,205 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (85)] Ended with exit code 0 [2022-11-03 04:03:43,394 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (86)] Ended with exit code 0 [2022-11-03 04:03:43,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,86 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 04:03:43,590 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:03:43,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:03:43,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1393327213, now seen corresponding path program 1 times [2022-11-03 04:03:43,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:03:43,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [150330120] [2022-11-03 04:03:43,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:43,591 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:03:43,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:03:43,592 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:03:43,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (87)] Waiting until timeout for monitored process [2022-11-03 04:03:44,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:44,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:03:44,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:03:44,232 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 04:03:44,232 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:03:44,400 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 04:03:44,400 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:03:44,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [150330120] [2022-11-03 04:03:44,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [150330120] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:03:44,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2100923720] [2022-11-03 04:03:44,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:44,401 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:03:44,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:03:44,402 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:03:44,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (88)] Waiting until timeout for monitored process [2022-11-03 04:03:45,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:45,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 04:03:45,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:03:45,611 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 04:03:45,611 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:03:45,699 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 04:03:45,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2100923720] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:03:45,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [215509758] [2022-11-03 04:03:45,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:45,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:03:45,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:03:45,707 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:03:45,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Waiting until timeout for monitored process [2022-11-03 04:03:46,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:46,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:03:46,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:03:46,357 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 04:03:46,357 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:03:46,583 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 04:03:46,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [215509758] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:03:46,583 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-03 04:03:46,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 9, 8, 10, 10] total 24 [2022-11-03 04:03:46,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152552964] [2022-11-03 04:03:46,584 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-03 04:03:46,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-03 04:03:46,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:03:46,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-03 04:03:46,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=469, Unknown=0, NotChecked=0, Total=552 [2022-11-03 04:03:46,585 INFO L87 Difference]: Start difference. First operand 852 states and 1081 transitions. Second operand has 24 states, 19 states have (on average 9.894736842105264) internal successors, (188), 24 states have internal predecessors, (188), 11 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (21), 6 states have call predecessors, (21), 11 states have call successors, (21) [2022-11-03 04:03:48,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:03:48,123 INFO L93 Difference]: Finished difference Result 1273 states and 1622 transitions. [2022-11-03 04:03:48,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-03 04:03:48,124 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 19 states have (on average 9.894736842105264) internal successors, (188), 24 states have internal predecessors, (188), 11 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (21), 6 states have call predecessors, (21), 11 states have call successors, (21) Word has length 218 [2022-11-03 04:03:48,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:03:48,125 INFO L225 Difference]: With dead ends: 1273 [2022-11-03 04:03:48,125 INFO L226 Difference]: Without dead ends: 660 [2022-11-03 04:03:48,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1318 GetRequests, 1276 SyntacticMatches, 4 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 287 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=334, Invalid=1226, Unknown=0, NotChecked=0, Total=1560 [2022-11-03 04:03:48,126 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 2743 mSDsluCounter, 1571 mSDsCounter, 0 mSdLazyCounter, 895 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2743 SdHoareTripleChecker+Valid, 1732 SdHoareTripleChecker+Invalid, 958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-03 04:03:48,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2743 Valid, 1732 Invalid, 958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 895 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-03 04:03:48,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states. [2022-11-03 04:03:48,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 650. [2022-11-03 04:03:48,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 633 states have (on average 1.287519747235387) internal successors, (815), 633 states have internal predecessors, (815), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 04:03:48,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 845 transitions. [2022-11-03 04:03:48,210 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 845 transitions. Word has length 218 [2022-11-03 04:03:48,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:03:48,210 INFO L495 AbstractCegarLoop]: Abstraction has 650 states and 845 transitions. [2022-11-03 04:03:48,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 19 states have (on average 9.894736842105264) internal successors, (188), 24 states have internal predecessors, (188), 11 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (21), 6 states have call predecessors, (21), 11 states have call successors, (21) [2022-11-03 04:03:48,211 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 845 transitions. [2022-11-03 04:03:48,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 04:03:48,213 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:03:48,213 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:03:48,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (88)] Forceful destruction successful, exit code 0 [2022-11-03 04:03:48,446 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Ended with exit code 0 [2022-11-03 04:03:48,634 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (87)] Ended with exit code 0 [2022-11-03 04:03:48,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 88 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,89 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,87 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:03:48,823 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:03:48,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:03:48,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1434225572, now seen corresponding path program 1 times [2022-11-03 04:03:48,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:03:48,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [583903623] [2022-11-03 04:03:48,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:48,825 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:03:48,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:03:48,826 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:03:48,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (90)] Waiting until timeout for monitored process [2022-11-03 04:03:49,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:49,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 04:03:49,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:03:50,411 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 263 proven. 14 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2022-11-03 04:03:50,411 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:03:50,483 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:03:50,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [583903623] [2022-11-03 04:03:50,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [583903623] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:03:50,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2088635646] [2022-11-03 04:03:50,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:50,484 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:03:50,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:03:50,484 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:03:50,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (91)] Waiting until timeout for monitored process [2022-11-03 04:03:52,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:52,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 04:03:52,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:03:53,247 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 261 proven. 50 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 04:03:53,247 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:03:53,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2088635646] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:03:53,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1621974808] [2022-11-03 04:03:53,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:53,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:03:53,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:03:53,554 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:03:53,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Waiting until timeout for monitored process [2022-11-03 04:03:54,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:54,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:03:54,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:03:55,682 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 263 proven. 19 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2022-11-03 04:03:55,683 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:03:55,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1621974808] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:03:55,896 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:03:55,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 19 [2022-11-03 04:03:55,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268790645] [2022-11-03 04:03:55,896 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:03:55,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-03 04:03:55,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:03:55,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-03 04:03:55,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=500, Unknown=0, NotChecked=0, Total=552 [2022-11-03 04:03:55,898 INFO L87 Difference]: Start difference. First operand 650 states and 845 transitions. Second operand has 19 states, 19 states have (on average 35.0) internal successors, (665), 19 states have internal predecessors, (665), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 04:04:20,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:04:20,494 INFO L93 Difference]: Finished difference Result 7222 states and 9506 transitions. [2022-11-03 04:04:20,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 163 states. [2022-11-03 04:04:20,495 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 35.0) internal successors, (665), 19 states have internal predecessors, (665), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 373 [2022-11-03 04:04:20,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:04:20,500 INFO L225 Difference]: With dead ends: 7222 [2022-11-03 04:04:20,500 INFO L226 Difference]: Without dead ends: 6636 [2022-11-03 04:04:20,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1874 GetRequests, 1691 SyntacticMatches, 0 SemanticMatches, 183 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11833 ImplicationChecksByTransitivity, 17.9s TimeCoverageRelationStatistics Valid=6652, Invalid=27388, Unknown=0, NotChecked=0, Total=34040 [2022-11-03 04:04:20,503 INFO L413 NwaCegarLoop]: 1606 mSDtfsCounter, 10663 mSDsluCounter, 13956 mSDsCounter, 0 mSdLazyCounter, 4551 mSolverCounterSat, 1069 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10663 SdHoareTripleChecker+Valid, 15562 SdHoareTripleChecker+Invalid, 5620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1069 IncrementalHoareTripleChecker+Valid, 4551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-03 04:04:20,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10663 Valid, 15562 Invalid, 5620 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1069 Valid, 4551 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-11-03 04:04:20,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6636 states. [2022-11-03 04:04:20,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6636 to 739. [2022-11-03 04:04:20,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 739 states, 719 states have (on average 1.2920723226703754) internal successors, (929), 719 states have internal predecessors, (929), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-03 04:04:20,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 965 transitions. [2022-11-03 04:04:20,683 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 965 transitions. Word has length 373 [2022-11-03 04:04:20,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:04:20,683 INFO L495 AbstractCegarLoop]: Abstraction has 739 states and 965 transitions. [2022-11-03 04:04:20,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 35.0) internal successors, (665), 19 states have internal predecessors, (665), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 04:04:20,684 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 965 transitions. [2022-11-03 04:04:20,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 04:04:20,688 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:04:20,688 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:04:20,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Forceful destruction successful, exit code 0 [2022-11-03 04:04:20,920 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (90)] Ended with exit code 0 [2022-11-03 04:04:21,113 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (91)] Ended with exit code 0 [2022-11-03 04:04:21,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 92 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,90 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,91 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 04:04:21,305 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:04:21,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:04:21,305 INFO L85 PathProgramCache]: Analyzing trace with hash -674592030, now seen corresponding path program 1 times [2022-11-03 04:04:21,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:04:21,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1429503644] [2022-11-03 04:04:21,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:04:21,308 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:04:21,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:04:21,308 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:04:21,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (93)] Waiting until timeout for monitored process [2022-11-03 04:04:22,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:04:22,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 04:04:22,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:04:22,906 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 263 proven. 18 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2022-11-03 04:04:22,906 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:04:22,967 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:04:22,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1429503644] [2022-11-03 04:04:22,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1429503644] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:04:22,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [243238693] [2022-11-03 04:04:22,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:04:22,968 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:04:22,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:04:22,971 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:04:22,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (94)] Waiting until timeout for monitored process [2022-11-03 04:04:24,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:04:24,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 04:04:24,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:04:26,381 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 253 proven. 58 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 04:04:26,381 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:04:26,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [243238693] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:04:26,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [222663778] [2022-11-03 04:04:26,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:04:26,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:04:26,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:04:26,819 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:04:26,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Waiting until timeout for monitored process [2022-11-03 04:04:27,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:04:27,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:04:27,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:04:29,013 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 263 proven. 27 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-11-03 04:04:29,013 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:04:29,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [222663778] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:04:29,247 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:04:29,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 7] total 20 [2022-11-03 04:04:29,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523017344] [2022-11-03 04:04:29,247 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:04:29,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-03 04:04:29,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:04:29,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-03 04:04:29,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-11-03 04:04:29,249 INFO L87 Difference]: Start difference. First operand 739 states and 965 transitions. Second operand has 20 states, 20 states have (on average 34.15) internal successors, (683), 20 states have internal predecessors, (683), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 04:04:53,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:04:53,502 INFO L93 Difference]: Finished difference Result 8324 states and 10975 transitions. [2022-11-03 04:04:53,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 158 states. [2022-11-03 04:04:53,503 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 34.15) internal successors, (683), 20 states have internal predecessors, (683), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 373 [2022-11-03 04:04:53,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:04:53,507 INFO L225 Difference]: With dead ends: 8324 [2022-11-03 04:04:53,507 INFO L226 Difference]: Without dead ends: 7659 [2022-11-03 04:04:53,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1869 GetRequests, 1689 SyntacticMatches, 0 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11475 ImplicationChecksByTransitivity, 17.7s TimeCoverageRelationStatistics Valid=6603, Invalid=26339, Unknown=0, NotChecked=0, Total=32942 [2022-11-03 04:04:53,512 INFO L413 NwaCegarLoop]: 1319 mSDtfsCounter, 13076 mSDsluCounter, 13135 mSDsCounter, 0 mSdLazyCounter, 4131 mSolverCounterSat, 1166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13076 SdHoareTripleChecker+Valid, 14454 SdHoareTripleChecker+Invalid, 5297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1166 IncrementalHoareTripleChecker+Valid, 4131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:04:53,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13076 Valid, 14454 Invalid, 5297 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1166 Valid, 4131 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-11-03 04:04:53,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7659 states. [2022-11-03 04:04:53,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7659 to 773. [2022-11-03 04:04:53,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 773 states, 753 states have (on average 1.2881806108897742) internal successors, (970), 753 states have internal predecessors, (970), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-03 04:04:53,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 773 states to 773 states and 1006 transitions. [2022-11-03 04:04:53,704 INFO L78 Accepts]: Start accepts. Automaton has 773 states and 1006 transitions. Word has length 373 [2022-11-03 04:04:53,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:04:53,705 INFO L495 AbstractCegarLoop]: Abstraction has 773 states and 1006 transitions. [2022-11-03 04:04:53,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 34.15) internal successors, (683), 20 states have internal predecessors, (683), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 04:04:53,705 INFO L276 IsEmpty]: Start isEmpty. Operand 773 states and 1006 transitions. [2022-11-03 04:04:53,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 04:04:53,708 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:04:53,708 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:04:53,742 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Ended with exit code 0 [2022-11-03 04:04:53,940 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (94)] Ended with exit code 0 [2022-11-03 04:04:54,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (93)] Forceful destruction successful, exit code 0 [2022-11-03 04:04:54,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 95 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,94 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,93 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:04:54,331 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:04:54,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:04:54,332 INFO L85 PathProgramCache]: Analyzing trace with hash 751728232, now seen corresponding path program 1 times [2022-11-03 04:04:54,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:04:54,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1640934796] [2022-11-03 04:04:54,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:04:54,333 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:04:54,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:04:54,334 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:04:54,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (96)] Waiting until timeout for monitored process [2022-11-03 04:04:55,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:04:55,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 04:04:55,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:04:56,054 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 263 proven. 20 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-11-03 04:04:56,054 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:04:56,123 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:04:56,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1640934796] [2022-11-03 04:04:56,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1640934796] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:04:56,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [27034618] [2022-11-03 04:04:56,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:04:56,123 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:04:56,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:04:56,124 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:04:56,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (97)] Waiting until timeout for monitored process [2022-11-03 04:04:57,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:04:57,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 04:04:57,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:04:59,417 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 249 proven. 62 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 04:04:59,417 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:04:59,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [27034618] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:04:59,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [426085344] [2022-11-03 04:04:59,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:04:59,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:04:59,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:04:59,817 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:04:59,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Waiting until timeout for monitored process [2022-11-03 04:05:00,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:00,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:05:00,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:05:02,023 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 263 proven. 31 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2022-11-03 04:05:02,023 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:05:02,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [426085344] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:05:02,267 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:05:02,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 7] total 20 [2022-11-03 04:05:02,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716441171] [2022-11-03 04:05:02,268 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:05:02,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-03 04:05:02,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:05:02,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-03 04:05:02,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-11-03 04:05:02,269 INFO L87 Difference]: Start difference. First operand 773 states and 1006 transitions. Second operand has 20 states, 20 states have (on average 34.55) internal successors, (691), 20 states have internal predecessors, (691), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 04:05:26,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:05:26,428 INFO L93 Difference]: Finished difference Result 8412 states and 11014 transitions. [2022-11-03 04:05:26,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 159 states. [2022-11-03 04:05:26,428 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 34.55) internal successors, (691), 20 states have internal predecessors, (691), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 373 [2022-11-03 04:05:26,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:05:26,434 INFO L225 Difference]: With dead ends: 8412 [2022-11-03 04:05:26,434 INFO L226 Difference]: Without dead ends: 7725 [2022-11-03 04:05:26,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1870 GetRequests, 1689 SyntacticMatches, 0 SemanticMatches, 181 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11575 ImplicationChecksByTransitivity, 17.2s TimeCoverageRelationStatistics Valid=6661, Invalid=26645, Unknown=0, NotChecked=0, Total=33306 [2022-11-03 04:05:26,439 INFO L413 NwaCegarLoop]: 1362 mSDtfsCounter, 13544 mSDsluCounter, 13126 mSDsCounter, 0 mSdLazyCounter, 4385 mSolverCounterSat, 1207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13544 SdHoareTripleChecker+Valid, 14488 SdHoareTripleChecker+Invalid, 5592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1207 IncrementalHoareTripleChecker+Valid, 4385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:05:26,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13544 Valid, 14488 Invalid, 5592 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1207 Valid, 4385 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-03 04:05:26,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7725 states. [2022-11-03 04:05:26,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7725 to 793. [2022-11-03 04:05:26,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 793 states, 773 states have (on average 1.279430789133247) internal successors, (989), 773 states have internal predecessors, (989), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-03 04:05:26,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 793 states to 793 states and 1025 transitions. [2022-11-03 04:05:26,703 INFO L78 Accepts]: Start accepts. Automaton has 793 states and 1025 transitions. Word has length 373 [2022-11-03 04:05:26,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:05:26,703 INFO L495 AbstractCegarLoop]: Abstraction has 793 states and 1025 transitions. [2022-11-03 04:05:26,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 34.55) internal successors, (691), 20 states have internal predecessors, (691), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 04:05:26,704 INFO L276 IsEmpty]: Start isEmpty. Operand 793 states and 1025 transitions. [2022-11-03 04:05:26,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 04:05:26,707 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:05:26,707 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:05:26,718 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (97)] Ended with exit code 0 [2022-11-03 04:05:26,939 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Ended with exit code 0 [2022-11-03 04:05:27,131 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (96)] Ended with exit code 0 [2022-11-03 04:05:27,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 97 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,98 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,96 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:05:27,315 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:05:27,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:05:27,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1668840558, now seen corresponding path program 1 times [2022-11-03 04:05:27,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:05:27,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [308590182] [2022-11-03 04:05:27,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:27,317 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:05:27,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:05:27,318 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:05:27,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (99)] Waiting until timeout for monitored process [2022-11-03 04:05:28,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:28,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 04:05:28,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:05:28,930 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 263 proven. 22 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-11-03 04:05:28,930 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:05:29,000 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:05:29,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [308590182] [2022-11-03 04:05:29,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [308590182] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:05:29,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2105747332] [2022-11-03 04:05:29,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:29,000 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:05:29,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:05:29,001 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:05:29,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (100)] Waiting until timeout for monitored process [2022-11-03 04:05:30,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:30,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 04:05:30,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:05:32,330 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 245 proven. 66 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 04:05:32,330 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:05:32,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2105747332] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:05:32,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [753538813] [2022-11-03 04:05:32,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:32,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:05:32,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:05:32,770 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:05:32,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Waiting until timeout for monitored process [2022-11-03 04:05:33,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:33,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 04:05:33,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:05:34,599 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 263 proven. 17 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-11-03 04:05:34,599 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:05:34,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [753538813] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:05:34,823 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:05:34,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 7] total 20 [2022-11-03 04:05:34,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676455075] [2022-11-03 04:05:34,824 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:05:34,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-03 04:05:34,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:05:34,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-03 04:05:34,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-11-03 04:05:34,825 INFO L87 Difference]: Start difference. First operand 793 states and 1025 transitions. Second operand has 20 states, 20 states have (on average 34.05) internal successors, (681), 20 states have internal predecessors, (681), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 04:06:02,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:06:02,047 INFO L93 Difference]: Finished difference Result 8336 states and 10877 transitions. [2022-11-03 04:06:02,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 159 states. [2022-11-03 04:06:02,047 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 34.05) internal successors, (681), 20 states have internal predecessors, (681), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 373 [2022-11-03 04:06:02,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:06:02,054 INFO L225 Difference]: With dead ends: 8336 [2022-11-03 04:06:02,054 INFO L226 Difference]: Without dead ends: 7619 [2022-11-03 04:06:02,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1870 GetRequests, 1689 SyntacticMatches, 0 SemanticMatches, 181 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11617 ImplicationChecksByTransitivity, 20.7s TimeCoverageRelationStatistics Valid=6661, Invalid=26645, Unknown=0, NotChecked=0, Total=33306 [2022-11-03 04:06:02,057 INFO L413 NwaCegarLoop]: 1169 mSDtfsCounter, 15258 mSDsluCounter, 12391 mSDsCounter, 0 mSdLazyCounter, 3886 mSolverCounterSat, 1302 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15258 SdHoareTripleChecker+Valid, 13560 SdHoareTripleChecker+Invalid, 5188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1302 IncrementalHoareTripleChecker+Valid, 3886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-03 04:06:02,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15258 Valid, 13560 Invalid, 5188 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1302 Valid, 3886 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-11-03 04:06:02,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7619 states. [2022-11-03 04:06:02,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7619 to 807. [2022-11-03 04:06:02,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 807 states, 787 states have (on average 1.266836086404066) internal successors, (997), 787 states have internal predecessors, (997), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-03 04:06:02,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 1033 transitions. [2022-11-03 04:06:02,259 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 1033 transitions. Word has length 373 [2022-11-03 04:06:02,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:06:02,259 INFO L495 AbstractCegarLoop]: Abstraction has 807 states and 1033 transitions. [2022-11-03 04:06:02,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 34.05) internal successors, (681), 20 states have internal predecessors, (681), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 04:06:02,259 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 1033 transitions. [2022-11-03 04:06:02,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 04:06:02,261 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:06:02,261 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:06:02,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Forceful destruction successful, exit code 0 [2022-11-03 04:06:02,479 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (99)] Ended with exit code 0 [2022-11-03 04:06:02,671 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (100)] Ended with exit code 0 [2022-11-03 04:06:02,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 101 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,99 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,100 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 04:06:02,862 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:06:02,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:06:02,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1657315212, now seen corresponding path program 1 times [2022-11-03 04:06:02,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:06:02,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [450116580] [2022-11-03 04:06:02,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:02,864 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:06:02,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:06:02,865 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:06:02,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (102)] Waiting until timeout for monitored process [2022-11-03 04:06:03,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:03,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 04:06:03,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:06:04,491 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 263 proven. 24 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-11-03 04:06:04,491 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:06:04,568 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:06:04,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [450116580] [2022-11-03 04:06:04,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [450116580] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:06:04,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1163314061] [2022-11-03 04:06:04,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:04,569 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:06:04,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:06:04,571 INFO L229 MonitoredProcess]: Starting monitored process 103 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:06:04,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (103)] Waiting until timeout for monitored process [2022-11-03 04:06:06,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:06,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 04:06:06,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:06:08,156 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 237 proven. 74 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 04:06:08,156 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:06:08,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1163314061] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:06:08,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [624664259] [2022-11-03 04:06:08,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:08,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:06:08,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:06:08,679 INFO L229 MonitoredProcess]: Starting monitored process 104 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:06:08,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (104)] Waiting until timeout for monitored process [2022-11-03 04:06:09,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:09,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 04:06:09,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:06:10,620 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 263 proven. 15 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-11-03 04:06:10,620 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:06:10,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [624664259] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:06:10,827 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:06:10,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 7] total 20 [2022-11-03 04:06:10,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581116009] [2022-11-03 04:06:10,827 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:06:10,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-03 04:06:10,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:06:10,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-03 04:06:10,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=591, Unknown=0, NotChecked=0, Total=650 [2022-11-03 04:06:10,829 INFO L87 Difference]: Start difference. First operand 807 states and 1033 transitions. Second operand has 20 states, 20 states have (on average 34.35) internal successors, (687), 20 states have internal predecessors, (687), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 04:06:23,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:06:23,724 INFO L93 Difference]: Finished difference Result 5569 states and 7191 transitions. [2022-11-03 04:06:23,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-11-03 04:06:23,724 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 34.35) internal successors, (687), 20 states have internal predecessors, (687), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 373 [2022-11-03 04:06:23,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:06:23,729 INFO L225 Difference]: With dead ends: 5569 [2022-11-03 04:06:23,729 INFO L226 Difference]: Without dead ends: 4838 [2022-11-03 04:06:23,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1806 GetRequests, 1689 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3918 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=3215, Invalid=10827, Unknown=0, NotChecked=0, Total=14042 [2022-11-03 04:06:23,732 INFO L413 NwaCegarLoop]: 745 mSDtfsCounter, 14095 mSDsluCounter, 9112 mSDsCounter, 0 mSdLazyCounter, 2741 mSolverCounterSat, 876 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14095 SdHoareTripleChecker+Valid, 9857 SdHoareTripleChecker+Invalid, 3617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 876 IncrementalHoareTripleChecker+Valid, 2741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:06:23,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14095 Valid, 9857 Invalid, 3617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [876 Valid, 2741 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-11-03 04:06:23,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4838 states. [2022-11-03 04:06:23,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4838 to 829. [2022-11-03 04:06:23,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 829 states, 809 states have (on average 1.2546353522867737) internal successors, (1015), 809 states have internal predecessors, (1015), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-03 04:06:23,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1051 transitions. [2022-11-03 04:06:23,883 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1051 transitions. Word has length 373 [2022-11-03 04:06:23,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:06:23,883 INFO L495 AbstractCegarLoop]: Abstraction has 829 states and 1051 transitions. [2022-11-03 04:06:23,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 34.35) internal successors, (687), 20 states have internal predecessors, (687), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 04:06:23,884 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1051 transitions. [2022-11-03 04:06:23,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 04:06:23,885 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:06:23,886 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:06:23,896 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (103)] Ended with exit code 0 [2022-11-03 04:06:24,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (104)] Forceful destruction successful, exit code 0 [2022-11-03 04:06:24,307 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (102)] Ended with exit code 0 [2022-11-03 04:06:24,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 103 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,104 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,102 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:06:24,492 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:06:24,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:06:24,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1260607878, now seen corresponding path program 1 times [2022-11-03 04:06:24,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:06:24,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [143010209] [2022-11-03 04:06:24,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:24,494 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:06:24,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:06:24,495 INFO L229 MonitoredProcess]: Starting monitored process 105 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:06:24,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (105)] Waiting until timeout for monitored process [2022-11-03 04:06:25,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:25,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 04:06:25,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:06:26,143 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 263 proven. 32 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2022-11-03 04:06:26,144 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:06:26,221 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:06:26,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [143010209] [2022-11-03 04:06:26,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [143010209] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:06:26,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1515100361] [2022-11-03 04:06:26,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:26,222 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:06:26,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:06:26,223 INFO L229 MonitoredProcess]: Starting monitored process 106 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:06:26,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (106)] Waiting until timeout for monitored process [2022-11-03 04:06:27,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:27,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 04:06:27,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:06:29,870 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 233 proven. 78 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 04:06:29,870 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:06:30,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1515100361] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:06:30,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1790388069] [2022-11-03 04:06:30,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:30,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:06:30,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:06:30,420 INFO L229 MonitoredProcess]: Starting monitored process 107 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:06:30,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (107)] Waiting until timeout for monitored process [2022-11-03 04:06:31,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:31,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:06:31,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:06:32,691 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 263 proven. 29 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-11-03 04:06:32,691 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:06:32,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1790388069] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:06:32,956 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:06:32,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 7] total 20 [2022-11-03 04:06:32,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962808605] [2022-11-03 04:06:32,957 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:06:32,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-03 04:06:32,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:06:32,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-03 04:06:32,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=591, Unknown=0, NotChecked=0, Total=650 [2022-11-03 04:06:32,959 INFO L87 Difference]: Start difference. First operand 829 states and 1051 transitions. Second operand has 20 states, 20 states have (on average 35.55) internal successors, (711), 20 states have internal predecessors, (711), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 04:06:47,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:06:47,718 INFO L93 Difference]: Finished difference Result 5881 states and 7484 transitions. [2022-11-03 04:06:47,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-11-03 04:06:47,719 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 35.55) internal successors, (711), 20 states have internal predecessors, (711), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 373 [2022-11-03 04:06:47,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:06:47,723 INFO L225 Difference]: With dead ends: 5881 [2022-11-03 04:06:47,723 INFO L226 Difference]: Without dead ends: 5142 [2022-11-03 04:06:47,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1806 GetRequests, 1689 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3929 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=3215, Invalid=10827, Unknown=0, NotChecked=0, Total=14042 [2022-11-03 04:06:47,725 INFO L413 NwaCegarLoop]: 1204 mSDtfsCounter, 12353 mSDsluCounter, 10437 mSDsCounter, 0 mSdLazyCounter, 3258 mSolverCounterSat, 844 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12353 SdHoareTripleChecker+Valid, 11641 SdHoareTripleChecker+Invalid, 4102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 844 IncrementalHoareTripleChecker+Valid, 3258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-03 04:06:47,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12353 Valid, 11641 Invalid, 4102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [844 Valid, 3258 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-11-03 04:06:47,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5142 states. [2022-11-03 04:06:47,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5142 to 893. [2022-11-03 04:06:47,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 893 states, 873 states have (on average 1.2508591065292096) internal successors, (1092), 873 states have internal predecessors, (1092), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-03 04:06:47,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 893 states to 893 states and 1128 transitions. [2022-11-03 04:06:47,947 INFO L78 Accepts]: Start accepts. Automaton has 893 states and 1128 transitions. Word has length 373 [2022-11-03 04:06:47,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:06:47,948 INFO L495 AbstractCegarLoop]: Abstraction has 893 states and 1128 transitions. [2022-11-03 04:06:47,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 35.55) internal successors, (711), 20 states have internal predecessors, (711), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 04:06:47,948 INFO L276 IsEmpty]: Start isEmpty. Operand 893 states and 1128 transitions. [2022-11-03 04:06:47,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 04:06:47,951 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:06:47,951 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:06:47,987 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (107)] Ended with exit code 0 [2022-11-03 04:06:48,172 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (106)] Ended with exit code 0 [2022-11-03 04:06:48,381 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (105)] Ended with exit code 0 [2022-11-03 04:06:48,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 107 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,106 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,105 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:06:48,564 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:06:48,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:06:48,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1203997440, now seen corresponding path program 1 times [2022-11-03 04:06:48,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:06:48,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1995632697] [2022-11-03 04:06:48,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:48,565 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:06:48,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:06:48,566 INFO L229 MonitoredProcess]: Starting monitored process 108 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:06:48,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (108)] Waiting until timeout for monitored process [2022-11-03 04:06:49,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:49,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 04:06:49,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:06:50,212 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 263 proven. 36 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-11-03 04:06:50,212 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:06:50,295 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:06:50,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1995632697] [2022-11-03 04:06:50,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1995632697] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:06:50,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [759576722] [2022-11-03 04:06:50,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:50,295 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:06:50,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:06:50,296 INFO L229 MonitoredProcess]: Starting monitored process 109 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:06:50,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (109)] Waiting until timeout for monitored process [2022-11-03 04:06:51,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:51,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 04:06:51,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:06:53,836 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 229 proven. 82 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 04:06:53,836 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:06:54,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [759576722] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:06:54,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [767565050] [2022-11-03 04:06:54,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:54,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:06:54,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:06:54,369 INFO L229 MonitoredProcess]: Starting monitored process 110 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:06:54,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (110)] Waiting until timeout for monitored process [2022-11-03 04:06:55,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:55,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:06:55,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:06:56,434 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 263 proven. 36 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-11-03 04:06:56,434 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:06:57,072 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 191 proven. 36 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2022-11-03 04:06:57,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [767565050] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:06:57,072 INFO L184 FreeRefinementEngine]: Found 0 perfect and 4 imperfect interpolant sequences. [2022-11-03 04:06:57,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 9, 9] total 25 [2022-11-03 04:06:57,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998725608] [2022-11-03 04:06:57,072 INFO L85 oduleStraightlineAll]: Using 4 imperfect interpolants to construct interpolant automaton [2022-11-03 04:06:57,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-03 04:06:57,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:06:57,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-03 04:06:57,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=683, Unknown=0, NotChecked=0, Total=756 [2022-11-03 04:06:57,074 INFO L87 Difference]: Start difference. First operand 893 states and 1128 transitions. Second operand has 25 states, 25 states have (on average 33.68) internal successors, (842), 25 states have internal predecessors, (842), 9 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 9 states have call predecessors, (30), 9 states have call successors, (30) [2022-11-03 04:07:03,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:07:03,289 INFO L93 Difference]: Finished difference Result 4579 states and 5770 transitions. [2022-11-03 04:07:03,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-11-03 04:07:03,290 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 33.68) internal successors, (842), 25 states have internal predecessors, (842), 9 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 9 states have call predecessors, (30), 9 states have call successors, (30) Word has length 373 [2022-11-03 04:07:03,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:07:03,293 INFO L225 Difference]: With dead ends: 4579 [2022-11-03 04:07:03,293 INFO L226 Difference]: Without dead ends: 4001 [2022-11-03 04:07:03,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1944 GetRequests, 1860 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1667 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1720, Invalid=5590, Unknown=0, NotChecked=0, Total=7310 [2022-11-03 04:07:03,294 INFO L413 NwaCegarLoop]: 1067 mSDtfsCounter, 6200 mSDsluCounter, 9585 mSDsCounter, 0 mSdLazyCounter, 2757 mSolverCounterSat, 417 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6200 SdHoareTripleChecker+Valid, 10652 SdHoareTripleChecker+Invalid, 3174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 417 IncrementalHoareTripleChecker+Valid, 2757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-03 04:07:03,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6200 Valid, 10652 Invalid, 3174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [417 Valid, 2757 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-03 04:07:03,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4001 states. [2022-11-03 04:07:03,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4001 to 909. [2022-11-03 04:07:03,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 889 states have (on average 1.247469066366704) internal successors, (1109), 889 states have internal predecessors, (1109), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-03 04:07:03,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1145 transitions. [2022-11-03 04:07:03,513 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1145 transitions. Word has length 373 [2022-11-03 04:07:03,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:07:03,513 INFO L495 AbstractCegarLoop]: Abstraction has 909 states and 1145 transitions. [2022-11-03 04:07:03,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 33.68) internal successors, (842), 25 states have internal predecessors, (842), 9 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 9 states have call predecessors, (30), 9 states have call successors, (30) [2022-11-03 04:07:03,514 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1145 transitions. [2022-11-03 04:07:03,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 04:07:03,517 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:07:03,517 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:07:03,543 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (108)] Ended with exit code 0 [2022-11-03 04:07:03,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (109)] Forceful destruction successful, exit code 0 [2022-11-03 04:07:03,965 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (110)] Ended with exit code 0 [2022-11-03 04:07:04,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 108 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,109 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,110 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:07:04,141 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:07:04,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:07:04,141 INFO L85 PathProgramCache]: Analyzing trace with hash -2139075964, now seen corresponding path program 1 times [2022-11-03 04:07:04,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:07:04,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [877104717] [2022-11-03 04:07:04,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:04,143 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:07:04,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:07:04,144 INFO L229 MonitoredProcess]: Starting monitored process 111 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:07:04,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (111)] Waiting until timeout for monitored process [2022-11-03 04:07:04,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:04,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 04:07:04,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:07:06,779 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 225 proven. 86 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 04:07:06,779 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:07:07,279 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:07:07,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [877104717] [2022-11-03 04:07:07,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [877104717] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:07:07,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1254972957] [2022-11-03 04:07:07,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:07,280 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:07:07,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:07:07,281 INFO L229 MonitoredProcess]: Starting monitored process 112 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:07:07,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (112)] Waiting until timeout for monitored process [2022-11-03 04:07:08,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:08,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 04:07:08,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:07:10,817 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 225 proven. 86 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 04:07:10,817 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:07:11,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1254972957] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:07:11,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1511997380] [2022-11-03 04:07:11,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:11,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:07:11,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:07:11,300 INFO L229 MonitoredProcess]: Starting monitored process 113 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:07:11,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (113)] Waiting until timeout for monitored process [2022-11-03 04:07:11,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:11,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-03 04:07:11,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:07:13,730 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 72 proven. 167 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 04:07:13,731 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:07:13,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1511997380] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:07:13,794 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:07:13,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 14] total 20 [2022-11-03 04:07:13,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12415704] [2022-11-03 04:07:13,794 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:07:13,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-03 04:07:13,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:07:13,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-03 04:07:13,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=456, Unknown=0, NotChecked=0, Total=506 [2022-11-03 04:07:13,796 INFO L87 Difference]: Start difference. First operand 909 states and 1145 transitions. Second operand has 20 states, 20 states have (on average 31.2) internal successors, (624), 20 states have internal predecessors, (624), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 04:07:18,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:07:18,060 INFO L93 Difference]: Finished difference Result 3575 states and 4503 transitions. [2022-11-03 04:07:18,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-11-03 04:07:18,061 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 31.2) internal successors, (624), 20 states have internal predecessors, (624), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 373 [2022-11-03 04:07:18,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:07:18,063 INFO L225 Difference]: With dead ends: 3575 [2022-11-03 04:07:18,063 INFO L226 Difference]: Without dead ends: 3053 [2022-11-03 04:07:18,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1621 GetRequests, 1543 SyntacticMatches, 1 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1334 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=990, Invalid=5172, Unknown=0, NotChecked=0, Total=6162 [2022-11-03 04:07:18,064 INFO L413 NwaCegarLoop]: 736 mSDtfsCounter, 2376 mSDsluCounter, 9853 mSDsCounter, 0 mSdLazyCounter, 1316 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2382 SdHoareTripleChecker+Valid, 10589 SdHoareTripleChecker+Invalid, 2579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 1316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1137 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-03 04:07:18,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2382 Valid, 10589 Invalid, 2579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 1316 Invalid, 0 Unknown, 1137 Unchecked, 1.4s Time] [2022-11-03 04:07:18,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3053 states. [2022-11-03 04:07:18,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3053 to 1255. [2022-11-03 04:07:18,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1255 states, 1223 states have (on average 1.2379394930498773) internal successors, (1514), 1223 states have internal predecessors, (1514), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-11-03 04:07:18,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1574 transitions. [2022-11-03 04:07:18,293 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1574 transitions. Word has length 373 [2022-11-03 04:07:18,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:07:18,294 INFO L495 AbstractCegarLoop]: Abstraction has 1255 states and 1574 transitions. [2022-11-03 04:07:18,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 31.2) internal successors, (624), 20 states have internal predecessors, (624), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 04:07:18,294 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1574 transitions. [2022-11-03 04:07:18,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 04:07:18,296 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:07:18,296 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:07:18,321 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (111)] Ended with exit code 0 [2022-11-03 04:07:18,506 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (112)] Ended with exit code 0 [2022-11-03 04:07:18,721 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (113)] Ended with exit code 0 [2022-11-03 04:07:18,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 111 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,112 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,113 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:07:18,897 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:07:18,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:07:18,898 INFO L85 PathProgramCache]: Analyzing trace with hash 873719046, now seen corresponding path program 1 times [2022-11-03 04:07:18,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:07:18,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [737528314] [2022-11-03 04:07:18,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:18,899 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:07:18,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:07:18,900 INFO L229 MonitoredProcess]: Starting monitored process 114 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:07:18,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (114)] Waiting until timeout for monitored process [2022-11-03 04:07:19,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:19,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 04:07:19,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:07:21,616 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 221 proven. 90 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 04:07:21,616 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:07:22,158 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:07:22,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [737528314] [2022-11-03 04:07:22,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [737528314] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:07:22,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1614244922] [2022-11-03 04:07:22,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:22,159 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:07:22,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:07:22,160 INFO L229 MonitoredProcess]: Starting monitored process 115 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:07:22,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (115)] Waiting until timeout for monitored process [2022-11-03 04:07:23,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:23,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 04:07:23,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:07:25,795 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 221 proven. 90 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 04:07:25,796 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:07:26,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1614244922] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:07:26,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [508964443] [2022-11-03 04:07:26,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:26,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:07:26,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:07:26,320 INFO L229 MonitoredProcess]: Starting monitored process 116 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:07:26,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (116)] Waiting until timeout for monitored process [2022-11-03 04:07:27,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:27,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-03 04:07:27,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:07:28,924 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 72 proven. 167 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 04:07:28,924 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:07:28,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [508964443] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:07:28,993 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:07:28,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 14] total 20 [2022-11-03 04:07:28,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751308620] [2022-11-03 04:07:28,994 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:07:28,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-03 04:07:28,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:07:28,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-03 04:07:28,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=456, Unknown=0, NotChecked=0, Total=506 [2022-11-03 04:07:28,995 INFO L87 Difference]: Start difference. First operand 1255 states and 1574 transitions. Second operand has 20 states, 20 states have (on average 31.2) internal successors, (624), 20 states have internal predecessors, (624), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 04:07:32,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:07:32,663 INFO L93 Difference]: Finished difference Result 3562 states and 4498 transitions. [2022-11-03 04:07:32,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-11-03 04:07:32,665 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 31.2) internal successors, (624), 20 states have internal predecessors, (624), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 373 [2022-11-03 04:07:32,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:07:32,668 INFO L225 Difference]: With dead ends: 3562 [2022-11-03 04:07:32,668 INFO L226 Difference]: Without dead ends: 2702 [2022-11-03 04:07:32,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1607 GetRequests, 1540 SyntacticMatches, 1 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 811 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=844, Invalid=3712, Unknown=0, NotChecked=0, Total=4556 [2022-11-03 04:07:32,671 INFO L413 NwaCegarLoop]: 526 mSDtfsCounter, 2616 mSDsluCounter, 8485 mSDsCounter, 0 mSdLazyCounter, 1032 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2622 SdHoareTripleChecker+Valid, 9011 SdHoareTripleChecker+Invalid, 1869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 1032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 704 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:07:32,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2622 Valid, 9011 Invalid, 1869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 1032 Invalid, 0 Unknown, 704 Unchecked, 1.2s Time] [2022-11-03 04:07:32,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2702 states. [2022-11-03 04:07:32,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2702 to 1263. [2022-11-03 04:07:32,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1263 states, 1231 states have (on average 1.2380178716490657) internal successors, (1524), 1231 states have internal predecessors, (1524), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-11-03 04:07:32,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1263 states to 1263 states and 1584 transitions. [2022-11-03 04:07:32,922 INFO L78 Accepts]: Start accepts. Automaton has 1263 states and 1584 transitions. Word has length 373 [2022-11-03 04:07:32,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:07:32,922 INFO L495 AbstractCegarLoop]: Abstraction has 1263 states and 1584 transitions. [2022-11-03 04:07:32,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 31.2) internal successors, (624), 20 states have internal predecessors, (624), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 04:07:32,922 INFO L276 IsEmpty]: Start isEmpty. Operand 1263 states and 1584 transitions. [2022-11-03 04:07:32,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 04:07:32,925 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:07:32,925 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:07:32,946 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (114)] Ended with exit code 0 [2022-11-03 04:07:33,150 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (115)] Ended with exit code 0 [2022-11-03 04:07:33,364 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (116)] Ended with exit code 0 [2022-11-03 04:07:33,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 114 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,115 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,116 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:07:33,539 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:07:33,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:07:33,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1492316024, now seen corresponding path program 1 times [2022-11-03 04:07:33,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:07:33,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1353411918] [2022-11-03 04:07:33,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:33,541 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:07:33,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:07:33,542 INFO L229 MonitoredProcess]: Starting monitored process 117 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:07:33,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (117)] Waiting until timeout for monitored process [2022-11-03 04:07:34,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:34,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 04:07:34,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:07:36,471 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 217 proven. 94 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 04:07:36,471 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:07:37,059 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:07:37,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1353411918] [2022-11-03 04:07:37,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1353411918] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:07:37,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1666482079] [2022-11-03 04:07:37,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:37,060 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:07:37,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:07:37,062 INFO L229 MonitoredProcess]: Starting monitored process 118 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:07:37,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (118)] Waiting until timeout for monitored process [2022-11-03 04:07:38,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:38,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 04:07:38,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:07:41,077 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 217 proven. 94 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 04:07:41,077 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:07:41,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1666482079] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:07:41,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1556415531] [2022-11-03 04:07:41,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:41,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:07:41,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:07:41,649 INFO L229 MonitoredProcess]: Starting monitored process 119 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:07:41,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (119)] Waiting until timeout for monitored process [2022-11-03 04:07:42,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:42,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-03 04:07:42,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:07:44,310 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 72 proven. 167 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 04:07:44,310 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:07:44,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1556415531] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:07:44,373 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:07:44,374 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 14] total 20 [2022-11-03 04:07:44,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280242087] [2022-11-03 04:07:44,374 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:07:44,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-03 04:07:44,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:07:44,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-03 04:07:44,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=456, Unknown=0, NotChecked=0, Total=506 [2022-11-03 04:07:44,375 INFO L87 Difference]: Start difference. First operand 1263 states and 1584 transitions. Second operand has 20 states, 20 states have (on average 31.2) internal successors, (624), 20 states have internal predecessors, (624), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 04:07:48,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:07:48,181 INFO L93 Difference]: Finished difference Result 3209 states and 4053 transitions. [2022-11-03 04:07:48,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-11-03 04:07:48,182 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 31.2) internal successors, (624), 20 states have internal predecessors, (624), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 373 [2022-11-03 04:07:48,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:07:48,186 INFO L225 Difference]: With dead ends: 3209 [2022-11-03 04:07:48,186 INFO L226 Difference]: Without dead ends: 2687 [2022-11-03 04:07:48,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1614 GetRequests, 1541 SyntacticMatches, 1 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1122 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=915, Invalid=4487, Unknown=0, NotChecked=0, Total=5402 [2022-11-03 04:07:48,187 INFO L413 NwaCegarLoop]: 495 mSDtfsCounter, 2369 mSDsluCounter, 8737 mSDsCounter, 0 mSdLazyCounter, 1046 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2375 SdHoareTripleChecker+Valid, 9232 SdHoareTripleChecker+Invalid, 1984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1046 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 836 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:07:48,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2375 Valid, 9232 Invalid, 1984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1046 Invalid, 0 Unknown, 836 Unchecked, 1.2s Time] [2022-11-03 04:07:48,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2687 states. [2022-11-03 04:07:48,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2687 to 1267. [2022-11-03 04:07:48,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1267 states, 1235 states have (on average 1.237246963562753) internal successors, (1528), 1235 states have internal predecessors, (1528), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-11-03 04:07:48,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1267 states to 1267 states and 1588 transitions. [2022-11-03 04:07:48,433 INFO L78 Accepts]: Start accepts. Automaton has 1267 states and 1588 transitions. Word has length 373 [2022-11-03 04:07:48,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:07:48,434 INFO L495 AbstractCegarLoop]: Abstraction has 1267 states and 1588 transitions. [2022-11-03 04:07:48,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 31.2) internal successors, (624), 20 states have internal predecessors, (624), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 04:07:48,434 INFO L276 IsEmpty]: Start isEmpty. Operand 1267 states and 1588 transitions. [2022-11-03 04:07:48,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 04:07:48,436 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:07:48,436 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:07:48,454 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (117)] Ended with exit code 0 [2022-11-03 04:07:48,663 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (119)] Ended with exit code 0 [2022-11-03 04:07:48,849 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (118)] Ended with exit code 0 [2022-11-03 04:07:49,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 117 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,119 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,118 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 04:07:49,037 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:07:49,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:07:49,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1155288330, now seen corresponding path program 1 times [2022-11-03 04:07:49,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:07:49,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [414244433] [2022-11-03 04:07:49,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:49,040 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:07:49,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:07:49,041 INFO L229 MonitoredProcess]: Starting monitored process 120 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:07:49,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (120)] Waiting until timeout for monitored process [2022-11-03 04:07:49,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:49,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 04:07:49,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:07:52,164 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 213 proven. 98 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 04:07:52,164 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:07:52,799 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:07:52,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [414244433] [2022-11-03 04:07:52,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [414244433] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:07:52,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [776612732] [2022-11-03 04:07:52,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:52,800 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:07:52,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:07:52,801 INFO L229 MonitoredProcess]: Starting monitored process 121 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:07:52,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (121)] Waiting until timeout for monitored process [2022-11-03 04:07:54,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:54,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 04:07:54,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:07:56,827 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 213 proven. 98 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 04:07:56,828 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:07:57,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [776612732] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:07:57,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1722112615] [2022-11-03 04:07:57,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:57,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:07:57,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:07:57,467 INFO L229 MonitoredProcess]: Starting monitored process 122 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:07:57,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (122)] Waiting until timeout for monitored process [2022-11-03 04:07:58,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:58,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-03 04:07:58,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:00,121 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 72 proven. 167 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 04:08:00,121 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:08:00,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1722112615] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:08:00,195 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:08:00,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 14] total 20 [2022-11-03 04:08:00,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894986612] [2022-11-03 04:08:00,196 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:08:00,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-03 04:08:00,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:08:00,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-03 04:08:00,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=456, Unknown=0, NotChecked=0, Total=506 [2022-11-03 04:08:00,198 INFO L87 Difference]: Start difference. First operand 1267 states and 1588 transitions. Second operand has 20 states, 20 states have (on average 31.2) internal successors, (624), 20 states have internal predecessors, (624), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 04:08:04,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:04,175 INFO L93 Difference]: Finished difference Result 3657 states and 4606 transitions. [2022-11-03 04:08:04,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-11-03 04:08:04,176 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 31.2) internal successors, (624), 20 states have internal predecessors, (624), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 373 [2022-11-03 04:08:04,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:04,179 INFO L225 Difference]: With dead ends: 3657 [2022-11-03 04:08:04,179 INFO L226 Difference]: Without dead ends: 2797 [2022-11-03 04:08:04,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1610 GetRequests, 1539 SyntacticMatches, 1 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1006 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=836, Invalid=4276, Unknown=0, NotChecked=0, Total=5112 [2022-11-03 04:08:04,181 INFO L413 NwaCegarLoop]: 634 mSDtfsCounter, 1774 mSDsluCounter, 9629 mSDsCounter, 0 mSdLazyCounter, 1106 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1780 SdHoareTripleChecker+Valid, 10263 SdHoareTripleChecker+Invalid, 2147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 1106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 944 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:04,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1780 Valid, 10263 Invalid, 2147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 1106 Invalid, 0 Unknown, 944 Unchecked, 1.3s Time] [2022-11-03 04:08:04,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2797 states. [2022-11-03 04:08:04,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2797 to 1357. [2022-11-03 04:08:04,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1357 states, 1325 states have (on average 1.2256603773584906) internal successors, (1624), 1325 states have internal predecessors, (1624), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-11-03 04:08:04,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1357 states to 1357 states and 1684 transitions. [2022-11-03 04:08:04,441 INFO L78 Accepts]: Start accepts. Automaton has 1357 states and 1684 transitions. Word has length 373 [2022-11-03 04:08:04,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:04,442 INFO L495 AbstractCegarLoop]: Abstraction has 1357 states and 1684 transitions. [2022-11-03 04:08:04,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 31.2) internal successors, (624), 20 states have internal predecessors, (624), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 04:08:04,442 INFO L276 IsEmpty]: Start isEmpty. Operand 1357 states and 1684 transitions. [2022-11-03 04:08:04,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 04:08:04,445 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:04,445 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:04,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (122)] Forceful destruction successful, exit code 0 [2022-11-03 04:08:04,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (121)] Forceful destruction successful, exit code 0 [2022-11-03 04:08:04,875 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (120)] Ended with exit code 0 [2022-11-03 04:08:05,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 122 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,121 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,120 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:08:05,059 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:05,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:05,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1257625884, now seen corresponding path program 1 times [2022-11-03 04:08:05,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:08:05,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [377609825] [2022-11-03 04:08:05,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:05,061 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:08:05,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:08:05,062 INFO L229 MonitoredProcess]: Starting monitored process 123 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:08:05,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (123)] Waiting until timeout for monitored process [2022-11-03 04:08:05,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:05,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 04:08:05,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:07,967 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 205 proven. 106 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 04:08:07,967 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:08:08,641 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:08:08,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [377609825] [2022-11-03 04:08:08,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [377609825] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:08:08,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [749364091] [2022-11-03 04:08:08,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:08,642 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:08:08,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:08:08,643 INFO L229 MonitoredProcess]: Starting monitored process 124 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:08:08,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (124)] Waiting until timeout for monitored process [2022-11-03 04:08:10,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:10,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 04:08:10,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:12,358 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 205 proven. 106 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 04:08:12,358 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:08:12,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [749364091] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:08:12,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1695009295] [2022-11-03 04:08:12,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:12,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:08:12,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:08:12,984 INFO L229 MonitoredProcess]: Starting monitored process 125 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:08:12,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (125)] Waiting until timeout for monitored process [2022-11-03 04:08:13,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:13,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 04:08:13,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:15,586 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 40 proven. 34 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2022-11-03 04:08:15,586 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:08:15,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1695009295] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:08:15,736 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:08:15,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 7] total 13 [2022-11-03 04:08:15,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254011873] [2022-11-03 04:08:15,737 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:08:15,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-03 04:08:15,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:08:15,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-03 04:08:15,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2022-11-03 04:08:15,738 INFO L87 Difference]: Start difference. First operand 1357 states and 1684 transitions. Second operand has 13 states, 13 states have (on average 40.53846153846154) internal successors, (527), 13 states have internal predecessors, (527), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-03 04:08:23,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:23,154 INFO L93 Difference]: Finished difference Result 6566 states and 8258 transitions. [2022-11-03 04:08:23,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-03 04:08:23,154 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 40.53846153846154) internal successors, (527), 13 states have internal predecessors, (527), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 373 [2022-11-03 04:08:23,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:23,158 INFO L225 Difference]: With dead ends: 6566 [2022-11-03 04:08:23,158 INFO L226 Difference]: Without dead ends: 5297 [2022-11-03 04:08:23,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1601 GetRequests, 1541 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 783 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=948, Invalid=2712, Unknown=0, NotChecked=0, Total=3660 [2022-11-03 04:08:23,160 INFO L413 NwaCegarLoop]: 1001 mSDtfsCounter, 3256 mSDsluCounter, 4758 mSDsCounter, 0 mSdLazyCounter, 1484 mSolverCounterSat, 227 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3256 SdHoareTripleChecker+Valid, 5759 SdHoareTripleChecker+Invalid, 1711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 227 IncrementalHoareTripleChecker+Valid, 1484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:23,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3256 Valid, 5759 Invalid, 1711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [227 Valid, 1484 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-03 04:08:23,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5297 states. [2022-11-03 04:08:23,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5297 to 1431. [2022-11-03 04:08:23,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1431 states, 1399 states have (on average 1.2301644031451036) internal successors, (1721), 1399 states have internal predecessors, (1721), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-11-03 04:08:23,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1431 states to 1431 states and 1781 transitions. [2022-11-03 04:08:23,428 INFO L78 Accepts]: Start accepts. Automaton has 1431 states and 1781 transitions. Word has length 373 [2022-11-03 04:08:23,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:23,428 INFO L495 AbstractCegarLoop]: Abstraction has 1431 states and 1781 transitions. [2022-11-03 04:08:23,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 40.53846153846154) internal successors, (527), 13 states have internal predecessors, (527), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-03 04:08:23,428 INFO L276 IsEmpty]: Start isEmpty. Operand 1431 states and 1781 transitions. [2022-11-03 04:08:23,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 04:08:23,430 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:23,431 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:23,441 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (124)] Ended with exit code 0 [2022-11-03 04:08:23,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (123)] Forceful destruction successful, exit code 0 [2022-11-03 04:08:23,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (125)] Forceful destruction successful, exit code 0 [2022-11-03 04:08:24,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 124 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,123 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,125 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:08:24,032 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:24,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:24,032 INFO L85 PathProgramCache]: Analyzing trace with hash -418616158, now seen corresponding path program 1 times [2022-11-03 04:08:24,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:08:24,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2116160467] [2022-11-03 04:08:24,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:24,034 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:08:24,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:08:24,034 INFO L229 MonitoredProcess]: Starting monitored process 126 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:08:24,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (126)] Waiting until timeout for monitored process [2022-11-03 04:08:24,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:24,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 04:08:24,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:27,027 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 201 proven. 110 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 04:08:27,028 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:08:27,724 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:08:27,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2116160467] [2022-11-03 04:08:27,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2116160467] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:08:27,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [533413383] [2022-11-03 04:08:27,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:27,725 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:08:27,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:08:27,726 INFO L229 MonitoredProcess]: Starting monitored process 127 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:08:27,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (127)] Waiting until timeout for monitored process [2022-11-03 04:08:29,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:29,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 04:08:29,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:31,583 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 201 proven. 110 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 04:08:31,583 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:08:32,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [533413383] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:08:32,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2140035472] [2022-11-03 04:08:32,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:32,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:08:32,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:08:32,236 INFO L229 MonitoredProcess]: Starting monitored process 128 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:08:32,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (128)] Waiting until timeout for monitored process [2022-11-03 04:08:32,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:32,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:08:32,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:36,104 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 20 proven. 54 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2022-11-03 04:08:36,104 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:08:36,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2140035472] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:08:36,306 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:08:36,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 7] total 13 [2022-11-03 04:08:36,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260051484] [2022-11-03 04:08:36,307 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:08:36,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-03 04:08:36,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:08:36,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-03 04:08:36,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2022-11-03 04:08:36,308 INFO L87 Difference]: Start difference. First operand 1431 states and 1781 transitions. Second operand has 13 states, 13 states have (on average 41.23076923076923) internal successors, (536), 13 states have internal predecessors, (536), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-03 04:08:42,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:42,609 INFO L93 Difference]: Finished difference Result 6862 states and 8638 transitions. [2022-11-03 04:08:42,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-03 04:08:42,609 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 41.23076923076923) internal successors, (536), 13 states have internal predecessors, (536), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 373 [2022-11-03 04:08:42,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:42,614 INFO L225 Difference]: With dead ends: 6862 [2022-11-03 04:08:42,614 INFO L226 Difference]: Without dead ends: 5549 [2022-11-03 04:08:42,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1601 GetRequests, 1541 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 781 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=948, Invalid=2712, Unknown=0, NotChecked=0, Total=3660 [2022-11-03 04:08:42,616 INFO L413 NwaCegarLoop]: 867 mSDtfsCounter, 3026 mSDsluCounter, 4485 mSDsCounter, 0 mSdLazyCounter, 1382 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3026 SdHoareTripleChecker+Valid, 5352 SdHoareTripleChecker+Invalid, 1605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 1382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:42,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3026 Valid, 5352 Invalid, 1605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 1382 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-03 04:08:42,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5549 states. [2022-11-03 04:08:42,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5549 to 1485. [2022-11-03 04:08:42,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1485 states, 1453 states have (on average 1.2319339298004128) internal successors, (1790), 1453 states have internal predecessors, (1790), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-11-03 04:08:42,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1485 states to 1485 states and 1850 transitions. [2022-11-03 04:08:42,891 INFO L78 Accepts]: Start accepts. Automaton has 1485 states and 1850 transitions. Word has length 373 [2022-11-03 04:08:42,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:42,891 INFO L495 AbstractCegarLoop]: Abstraction has 1485 states and 1850 transitions. [2022-11-03 04:08:42,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 41.23076923076923) internal successors, (536), 13 states have internal predecessors, (536), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-03 04:08:42,892 INFO L276 IsEmpty]: Start isEmpty. Operand 1485 states and 1850 transitions. [2022-11-03 04:08:42,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 04:08:42,894 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:42,895 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:42,914 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (126)] Ended with exit code 0 [2022-11-03 04:08:43,120 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (128)] Forceful destruction successful, exit code 0 [2022-11-03 04:08:43,306 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (127)] Ended with exit code 0 [2022-11-03 04:08:43,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 126 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,128 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,127 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 04:08:43,496 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:43,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:43,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1190934498, now seen corresponding path program 1 times [2022-11-03 04:08:43,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:08:43,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [584059716] [2022-11-03 04:08:43,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:43,498 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:08:43,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:08:43,499 INFO L229 MonitoredProcess]: Starting monitored process 129 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:08:43,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (129)] Waiting until timeout for monitored process [2022-11-03 04:08:44,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:44,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 04:08:44,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:45,732 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 197 proven. 114 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 04:08:45,732 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:08:46,416 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:08:46,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [584059716] [2022-11-03 04:08:46,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [584059716] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:08:46,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [812157748] [2022-11-03 04:08:46,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:46,417 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:08:46,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:08:46,418 INFO L229 MonitoredProcess]: Starting monitored process 130 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:08:46,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (130)] Waiting until timeout for monitored process [2022-11-03 04:08:48,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:48,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 04:08:48,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:49,492 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 197 proven. 114 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 04:08:49,492 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:08:50,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [812157748] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:08:50,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2035151268] [2022-11-03 04:08:50,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:50,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:08:50,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:08:50,150 INFO L229 MonitoredProcess]: Starting monitored process 131 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:08:50,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (131)] Waiting until timeout for monitored process [2022-11-03 04:08:50,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:50,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:08:50,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:53,877 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 12 proven. 62 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2022-11-03 04:08:53,877 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:08:54,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2035151268] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:08:54,076 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:08:54,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 7] total 13 [2022-11-03 04:08:54,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087043429] [2022-11-03 04:08:54,076 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:08:54,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-03 04:08:54,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:08:54,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-03 04:08:54,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2022-11-03 04:08:54,078 INFO L87 Difference]: Start difference. First operand 1485 states and 1850 transitions. Second operand has 13 states, 13 states have (on average 41.46153846153846) internal successors, (539), 13 states have internal predecessors, (539), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-03 04:08:59,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:59,968 INFO L93 Difference]: Finished difference Result 6970 states and 8737 transitions. [2022-11-03 04:08:59,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-03 04:08:59,968 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 41.46153846153846) internal successors, (539), 13 states have internal predecessors, (539), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 373 [2022-11-03 04:08:59,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:59,974 INFO L225 Difference]: With dead ends: 6970 [2022-11-03 04:08:59,974 INFO L226 Difference]: Without dead ends: 5623 [2022-11-03 04:08:59,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1601 GetRequests, 1541 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 788 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=948, Invalid=2712, Unknown=0, NotChecked=0, Total=3660 [2022-11-03 04:08:59,977 INFO L413 NwaCegarLoop]: 918 mSDtfsCounter, 3183 mSDsluCounter, 4347 mSDsCounter, 0 mSdLazyCounter, 1478 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3183 SdHoareTripleChecker+Valid, 5265 SdHoareTripleChecker+Invalid, 1704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 1478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:59,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3183 Valid, 5265 Invalid, 1704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 1478 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-03 04:08:59,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5623 states. [2022-11-03 04:09:00,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5623 to 1455. [2022-11-03 04:09:00,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1455 states, 1423 states have (on average 1.2262825017568517) internal successors, (1745), 1423 states have internal predecessors, (1745), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-11-03 04:09:00,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1455 states to 1455 states and 1805 transitions. [2022-11-03 04:09:00,265 INFO L78 Accepts]: Start accepts. Automaton has 1455 states and 1805 transitions. Word has length 373 [2022-11-03 04:09:00,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:09:00,266 INFO L495 AbstractCegarLoop]: Abstraction has 1455 states and 1805 transitions. [2022-11-03 04:09:00,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 41.46153846153846) internal successors, (539), 13 states have internal predecessors, (539), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-03 04:09:00,266 INFO L276 IsEmpty]: Start isEmpty. Operand 1455 states and 1805 transitions. [2022-11-03 04:09:00,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 04:09:00,268 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:09:00,268 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:09:00,287 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (129)] Ended with exit code 0 [2022-11-03 04:09:00,487 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (130)] Forceful destruction successful, exit code 0 [2022-11-03 04:09:00,706 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (131)] Ended with exit code 0 [2022-11-03 04:09:00,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 129 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,130 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,131 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:09:00,882 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:09:00,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:09:00,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1558994142, now seen corresponding path program 1 times [2022-11-03 04:09:00,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:09:00,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1156172139] [2022-11-03 04:09:00,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:09:00,884 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:09:00,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:09:00,885 INFO L229 MonitoredProcess]: Starting monitored process 132 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:09:00,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (132)] Waiting until timeout for monitored process [2022-11-03 04:09:01,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:09:01,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-03 04:09:01,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:09:04,207 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 68 proven. 171 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 04:09:04,207 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:09:04,271 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:09:04,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1156172139] [2022-11-03 04:09:04,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1156172139] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:09:04,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1145168915] [2022-11-03 04:09:04,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:09:04,271 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:09:04,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:09:04,272 INFO L229 MonitoredProcess]: Starting monitored process 133 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:09:04,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (133)] Waiting until timeout for monitored process [2022-11-03 04:09:05,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:09:05,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-03 04:09:05,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:09:08,851 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 60 proven. 179 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 04:09:08,851 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:09:08,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1145168915] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:09:08,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [747135666] [2022-11-03 04:09:08,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:09:08,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:09:08,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:09:08,955 INFO L229 MonitoredProcess]: Starting monitored process 134 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:09:08,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (134)] Waiting until timeout for monitored process [2022-11-03 04:09:09,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:09:09,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:09:09,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:09:12,737 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 36 proven. 38 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2022-11-03 04:09:12,737 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:09:12,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [747135666] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:09:12,997 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:09:12,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17, 7] total 35 [2022-11-03 04:09:12,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481480294] [2022-11-03 04:09:12,997 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:09:12,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-03 04:09:12,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:09:12,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-03 04:09:12,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=1464, Unknown=0, NotChecked=0, Total=1560 [2022-11-03 04:09:12,998 INFO L87 Difference]: Start difference. First operand 1455 states and 1805 transitions. Second operand has 35 states, 35 states have (on average 23.4) internal successors, (819), 35 states have internal predecessors, (819), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2022-11-03 04:09:26,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:09:26,180 INFO L93 Difference]: Finished difference Result 5461 states and 6966 transitions. [2022-11-03 04:09:26,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-11-03 04:09:26,181 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 23.4) internal successors, (819), 35 states have internal predecessors, (819), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) Word has length 373 [2022-11-03 04:09:26,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:09:26,183 INFO L225 Difference]: With dead ends: 5461 [2022-11-03 04:09:26,184 INFO L226 Difference]: Without dead ends: 4110 [2022-11-03 04:09:26,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1333 GetRequests, 1216 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3158 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=2630, Invalid=11412, Unknown=0, NotChecked=0, Total=14042 [2022-11-03 04:09:26,185 INFO L413 NwaCegarLoop]: 811 mSDtfsCounter, 11172 mSDsluCounter, 19911 mSDsCounter, 0 mSdLazyCounter, 3173 mSolverCounterSat, 408 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11172 SdHoareTripleChecker+Valid, 20722 SdHoareTripleChecker+Invalid, 7290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 408 IncrementalHoareTripleChecker+Valid, 3173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3709 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-03 04:09:26,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11172 Valid, 20722 Invalid, 7290 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [408 Valid, 3173 Invalid, 0 Unknown, 3709 Unchecked, 3.5s Time] [2022-11-03 04:09:26,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4110 states. [2022-11-03 04:09:26,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4110 to 1479. [2022-11-03 04:09:26,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1479 states, 1447 states have (on average 1.2239115411195578) internal successors, (1771), 1447 states have internal predecessors, (1771), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-11-03 04:09:26,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1479 states to 1479 states and 1831 transitions. [2022-11-03 04:09:26,435 INFO L78 Accepts]: Start accepts. Automaton has 1479 states and 1831 transitions. Word has length 373 [2022-11-03 04:09:26,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:09:26,435 INFO L495 AbstractCegarLoop]: Abstraction has 1479 states and 1831 transitions. [2022-11-03 04:09:26,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 23.4) internal successors, (819), 35 states have internal predecessors, (819), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2022-11-03 04:09:26,435 INFO L276 IsEmpty]: Start isEmpty. Operand 1479 states and 1831 transitions. [2022-11-03 04:09:26,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 04:09:26,437 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:09:26,437 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:09:26,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (133)] Forceful destruction successful, exit code 0 [2022-11-03 04:09:26,662 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (134)] Ended with exit code 0 [2022-11-03 04:09:26,855 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (132)] Forceful destruction successful, exit code 0 [2022-11-03 04:09:27,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 133 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,134 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,132 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:09:27,038 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:09:27,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:09:27,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1579862814, now seen corresponding path program 1 times [2022-11-03 04:09:27,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:09:27,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [169916871] [2022-11-03 04:09:27,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:09:27,040 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:09:27,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:09:27,041 INFO L229 MonitoredProcess]: Starting monitored process 135 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:09:27,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (135)] Waiting until timeout for monitored process [2022-11-03 04:09:27,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:09:27,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-03 04:09:27,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:09:30,194 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 56 proven. 183 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 04:09:30,194 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:09:30,280 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:09:30,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [169916871] [2022-11-03 04:09:30,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [169916871] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:09:30,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [80889301] [2022-11-03 04:09:30,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:09:30,281 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:09:30,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:09:30,282 INFO L229 MonitoredProcess]: Starting monitored process 136 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:09:30,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (136)] Waiting until timeout for monitored process [2022-11-03 04:09:31,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:09:31,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-03 04:09:31,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:09:34,998 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 48 proven. 191 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 04:09:34,998 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:09:35,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [80889301] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:09:35,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [180856634] [2022-11-03 04:09:35,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:09:35,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:09:35,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:09:35,113 INFO L229 MonitoredProcess]: Starting monitored process 137 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:09:35,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (137)] Waiting until timeout for monitored process [2022-11-03 04:09:35,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:09:35,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 04:09:35,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:09:38,026 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 40 proven. 34 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2022-11-03 04:09:38,027 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:09:38,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [180856634] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:09:38,332 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:09:38,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17, 7] total 35 [2022-11-03 04:09:38,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369837494] [2022-11-03 04:09:38,333 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:09:38,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-03 04:09:38,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:09:38,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-03 04:09:38,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=1466, Unknown=0, NotChecked=0, Total=1560 [2022-11-03 04:09:38,335 INFO L87 Difference]: Start difference. First operand 1479 states and 1831 transitions. Second operand has 35 states, 35 states have (on average 23.514285714285716) internal successors, (823), 35 states have internal predecessors, (823), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2022-11-03 04:10:00,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:10:00,894 INFO L93 Difference]: Finished difference Result 8983 states and 11569 transitions. [2022-11-03 04:10:00,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2022-11-03 04:10:00,894 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 23.514285714285716) internal successors, (823), 35 states have internal predecessors, (823), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) Word has length 373 [2022-11-03 04:10:00,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:10:00,900 INFO L225 Difference]: With dead ends: 8983 [2022-11-03 04:10:00,900 INFO L226 Difference]: Without dead ends: 7610 [2022-11-03 04:10:00,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1372 GetRequests, 1218 SyntacticMatches, 0 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6780 ImplicationChecksByTransitivity, 17.2s TimeCoverageRelationStatistics Valid=4482, Invalid=19698, Unknown=0, NotChecked=0, Total=24180 [2022-11-03 04:10:00,903 INFO L413 NwaCegarLoop]: 1021 mSDtfsCounter, 12882 mSDsluCounter, 23998 mSDsCounter, 0 mSdLazyCounter, 3636 mSolverCounterSat, 750 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12882 SdHoareTripleChecker+Valid, 25019 SdHoareTripleChecker+Invalid, 9410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 750 IncrementalHoareTripleChecker+Valid, 3636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5024 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:10:00,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12882 Valid, 25019 Invalid, 9410 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [750 Valid, 3636 Invalid, 0 Unknown, 5024 Unchecked, 4.3s Time] [2022-11-03 04:10:00,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7610 states. [2022-11-03 04:10:01,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7610 to 1513. [2022-11-03 04:10:01,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1481 states have (on average 1.2241728561782579) internal successors, (1813), 1481 states have internal predecessors, (1813), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-11-03 04:10:01,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 1873 transitions. [2022-11-03 04:10:01,200 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 1873 transitions. Word has length 373 [2022-11-03 04:10:01,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:10:01,200 INFO L495 AbstractCegarLoop]: Abstraction has 1513 states and 1873 transitions. [2022-11-03 04:10:01,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 23.514285714285716) internal successors, (823), 35 states have internal predecessors, (823), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2022-11-03 04:10:01,201 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 1873 transitions. [2022-11-03 04:10:01,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 04:10:01,204 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:10:01,204 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:10:01,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (137)] Forceful destruction successful, exit code 0 [2022-11-03 04:10:01,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (136)] Forceful destruction successful, exit code 0 [2022-11-03 04:10:01,621 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (135)] Ended with exit code 0 [2022-11-03 04:10:01,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 137 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,136 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,135 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:10:01,805 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:10:01,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:10:01,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1459915940, now seen corresponding path program 1 times [2022-11-03 04:10:01,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:10:01,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2128555483] [2022-11-03 04:10:01,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:10:01,807 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:10:01,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:10:01,808 INFO L229 MonitoredProcess]: Starting monitored process 138 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:10:01,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (138)] Waiting until timeout for monitored process [2022-11-03 04:10:02,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:10:02,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-03 04:10:02,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:10:05,159 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 52 proven. 187 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 04:10:05,159 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:10:05,240 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:10:05,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2128555483] [2022-11-03 04:10:05,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2128555483] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:10:05,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [985260960] [2022-11-03 04:10:05,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:10:05,240 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:10:05,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:10:05,241 INFO L229 MonitoredProcess]: Starting monitored process 139 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:10:05,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (139)] Waiting until timeout for monitored process [2022-11-03 04:10:06,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:10:06,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-03 04:10:06,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:10:09,826 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 44 proven. 195 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 04:10:09,826 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:10:09,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [985260960] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:10:09,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [815166050] [2022-11-03 04:10:09,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:10:09,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:10:09,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:10:09,945 INFO L229 MonitoredProcess]: Starting monitored process 140 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:10:09,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (140)] Waiting until timeout for monitored process [2022-11-03 04:10:10,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:10:10,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:10:10,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:10:13,681 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 36 proven. 38 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2022-11-03 04:10:13,681 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:10:13,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [815166050] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:10:13,953 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:10:13,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17, 7] total 35 [2022-11-03 04:10:13,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246850653] [2022-11-03 04:10:13,954 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:10:13,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-03 04:10:13,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:10:13,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-03 04:10:13,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=1464, Unknown=0, NotChecked=0, Total=1560 [2022-11-03 04:10:13,956 INFO L87 Difference]: Start difference. First operand 1513 states and 1873 transitions. Second operand has 35 states, 35 states have (on average 23.62857142857143) internal successors, (827), 35 states have internal predecessors, (827), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2022-11-03 04:10:25,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:10:25,386 INFO L93 Difference]: Finished difference Result 5433 states and 6876 transitions. [2022-11-03 04:10:25,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-11-03 04:10:25,387 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 23.62857142857143) internal successors, (827), 35 states have internal predecessors, (827), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) Word has length 373 [2022-11-03 04:10:25,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:10:25,389 INFO L225 Difference]: With dead ends: 5433 [2022-11-03 04:10:25,389 INFO L226 Difference]: Without dead ends: 4034 [2022-11-03 04:10:25,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1338 GetRequests, 1225 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2854 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=2568, Invalid=10542, Unknown=0, NotChecked=0, Total=13110 [2022-11-03 04:10:25,392 INFO L413 NwaCegarLoop]: 681 mSDtfsCounter, 12135 mSDsluCounter, 14926 mSDsCounter, 0 mSdLazyCounter, 2096 mSolverCounterSat, 404 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12135 SdHoareTripleChecker+Valid, 15607 SdHoareTripleChecker+Invalid, 6124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 404 IncrementalHoareTripleChecker+Valid, 2096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3624 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-03 04:10:25,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12135 Valid, 15607 Invalid, 6124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [404 Valid, 2096 Invalid, 0 Unknown, 3624 Unchecked, 2.4s Time] [2022-11-03 04:10:25,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4034 states. [2022-11-03 04:10:25,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4034 to 1509. [2022-11-03 04:10:25,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1509 states, 1477 states have (on average 1.2234258632362898) internal successors, (1807), 1477 states have internal predecessors, (1807), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-11-03 04:10:25,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1509 states to 1509 states and 1867 transitions. [2022-11-03 04:10:25,656 INFO L78 Accepts]: Start accepts. Automaton has 1509 states and 1867 transitions. Word has length 373 [2022-11-03 04:10:25,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:10:25,657 INFO L495 AbstractCegarLoop]: Abstraction has 1509 states and 1867 transitions. [2022-11-03 04:10:25,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 23.62857142857143) internal successors, (827), 35 states have internal predecessors, (827), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2022-11-03 04:10:25,657 INFO L276 IsEmpty]: Start isEmpty. Operand 1509 states and 1867 transitions. [2022-11-03 04:10:25,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 04:10:25,659 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:10:25,659 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:10:25,670 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (139)] Ended with exit code 0 [2022-11-03 04:10:25,876 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (138)] Ended with exit code 0 [2022-11-03 04:10:26,084 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (140)] Ended with exit code 0 [2022-11-03 04:10:26,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 139 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,138 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,140 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:10:26,260 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:10:26,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:10:26,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1155061592, now seen corresponding path program 1 times [2022-11-03 04:10:26,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:10:26,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1398936266] [2022-11-03 04:10:26,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:10:26,262 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:10:26,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:10:26,263 INFO L229 MonitoredProcess]: Starting monitored process 141 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:10:26,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (141)] Waiting until timeout for monitored process [2022-11-03 04:10:27,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:10:27,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-03 04:10:27,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:10:29,500 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 40 proven. 199 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 04:10:29,500 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:10:29,596 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:10:29,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1398936266] [2022-11-03 04:10:29,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1398936266] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:10:29,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1997878160] [2022-11-03 04:10:29,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:10:29,597 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:10:29,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:10:29,597 INFO L229 MonitoredProcess]: Starting monitored process 142 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:10:29,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (142)] Waiting until timeout for monitored process [2022-11-03 04:10:31,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:10:31,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-03 04:10:31,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:10:34,192 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 24 proven. 215 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 04:10:34,192 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:10:34,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1997878160] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:10:34,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1474525251] [2022-11-03 04:10:34,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:10:34,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:10:34,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:10:34,321 INFO L229 MonitoredProcess]: Starting monitored process 143 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:10:34,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (143)] Waiting until timeout for monitored process [2022-11-03 04:10:35,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:10:35,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:10:35,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:10:37,928 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 32 proven. 42 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2022-11-03 04:10:37,928 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:10:38,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1474525251] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:10:38,199 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:10:38,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17, 7] total 35 [2022-11-03 04:10:38,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123036093] [2022-11-03 04:10:38,199 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:10:38,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-03 04:10:38,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:10:38,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-03 04:10:38,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=1464, Unknown=0, NotChecked=0, Total=1560 [2022-11-03 04:10:38,201 INFO L87 Difference]: Start difference. First operand 1509 states and 1867 transitions. Second operand has 35 states, 35 states have (on average 23.97142857142857) internal successors, (839), 35 states have internal predecessors, (839), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2022-11-03 04:10:50,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:10:50,216 INFO L93 Difference]: Finished difference Result 5534 states and 6939 transitions. [2022-11-03 04:10:50,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-11-03 04:10:50,216 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 23.97142857142857) internal successors, (839), 35 states have internal predecessors, (839), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) Word has length 373 [2022-11-03 04:10:50,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:10:50,219 INFO L225 Difference]: With dead ends: 5534 [2022-11-03 04:10:50,219 INFO L226 Difference]: Without dead ends: 4149 [2022-11-03 04:10:50,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1335 GetRequests, 1226 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2579 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=2375, Invalid=9835, Unknown=0, NotChecked=0, Total=12210 [2022-11-03 04:10:50,221 INFO L413 NwaCegarLoop]: 869 mSDtfsCounter, 10016 mSDsluCounter, 21298 mSDsCounter, 0 mSdLazyCounter, 3335 mSolverCounterSat, 485 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10016 SdHoareTripleChecker+Valid, 22167 SdHoareTripleChecker+Invalid, 7142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 485 IncrementalHoareTripleChecker+Valid, 3335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3322 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-03 04:10:50,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10016 Valid, 22167 Invalid, 7142 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [485 Valid, 3335 Invalid, 0 Unknown, 3322 Unchecked, 3.5s Time] [2022-11-03 04:10:50,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4149 states. [2022-11-03 04:10:50,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4149 to 1559. [2022-11-03 04:10:50,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1559 states, 1527 states have (on average 1.223968565815324) internal successors, (1869), 1527 states have internal predecessors, (1869), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-11-03 04:10:50,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1559 states to 1559 states and 1929 transitions. [2022-11-03 04:10:50,484 INFO L78 Accepts]: Start accepts. Automaton has 1559 states and 1929 transitions. Word has length 373 [2022-11-03 04:10:50,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:10:50,484 INFO L495 AbstractCegarLoop]: Abstraction has 1559 states and 1929 transitions. [2022-11-03 04:10:50,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 23.97142857142857) internal successors, (839), 35 states have internal predecessors, (839), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2022-11-03 04:10:50,484 INFO L276 IsEmpty]: Start isEmpty. Operand 1559 states and 1929 transitions. [2022-11-03 04:10:50,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 04:10:50,487 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:10:50,487 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:10:50,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (141)] Forceful destruction successful, exit code 0 [2022-11-03 04:10:50,697 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (142)] Ended with exit code 0 [2022-11-03 04:10:50,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (143)] Forceful destruction successful, exit code 0 [2022-11-03 04:10:51,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 141 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,142 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,143 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:10:51,088 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:10:51,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:10:51,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1180447510, now seen corresponding path program 1 times [2022-11-03 04:10:51,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:10:51,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1927301245] [2022-11-03 04:10:51,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:10:51,090 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:10:51,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:10:51,090 INFO L229 MonitoredProcess]: Starting monitored process 144 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:10:51,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (144)] Waiting until timeout for monitored process [2022-11-03 04:10:51,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:10:51,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-03 04:10:51,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:10:54,334 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 36 proven. 203 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 04:10:54,335 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:10:54,413 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:10:54,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1927301245] [2022-11-03 04:10:54,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1927301245] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:10:54,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2083462205] [2022-11-03 04:10:54,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:10:54,414 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:10:54,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:10:54,415 INFO L229 MonitoredProcess]: Starting monitored process 145 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:10:54,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (145)] Waiting until timeout for monitored process [2022-11-03 04:10:56,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:10:56,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-03 04:10:56,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:10:58,432 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 36 proven. 203 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 04:10:58,432 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:10:58,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2083462205] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:10:58,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1365787292] [2022-11-03 04:10:58,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:10:58,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:10:58,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:10:58,477 INFO L229 MonitoredProcess]: Starting monitored process 146 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:10:58,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (146)] Waiting until timeout for monitored process [2022-11-03 04:10:59,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:10:59,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 04:10:59,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:11:01,450 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 32 proven. 42 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2022-11-03 04:11:01,451 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:11:01,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1365787292] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:11:01,658 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:11:01,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17, 7] total 22 [2022-11-03 04:11:01,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434264270] [2022-11-03 04:11:01,659 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:11:01,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-03 04:11:01,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:11:01,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-03 04:11:01,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=587, Unknown=0, NotChecked=0, Total=650 [2022-11-03 04:11:01,661 INFO L87 Difference]: Start difference. First operand 1559 states and 1929 transitions. Second operand has 22 states, 22 states have (on average 24.136363636363637) internal successors, (531), 22 states have internal predecessors, (531), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2022-11-03 04:11:08,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:11:08,364 INFO L93 Difference]: Finished difference Result 4541 states and 5651 transitions. [2022-11-03 04:11:08,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-11-03 04:11:08,365 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 24.136363636363637) internal successors, (531), 22 states have internal predecessors, (531), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 373 [2022-11-03 04:11:08,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:11:08,368 INFO L225 Difference]: With dead ends: 4541 [2022-11-03 04:11:08,368 INFO L226 Difference]: Without dead ends: 3108 [2022-11-03 04:11:08,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1312 GetRequests, 1230 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1606 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=1637, Invalid=5335, Unknown=0, NotChecked=0, Total=6972 [2022-11-03 04:11:08,369 INFO L413 NwaCegarLoop]: 623 mSDtfsCounter, 6893 mSDsluCounter, 8846 mSDsCounter, 0 mSdLazyCounter, 1356 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6893 SdHoareTripleChecker+Valid, 9469 SdHoareTripleChecker+Invalid, 2609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 1356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1055 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-03 04:11:08,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6893 Valid, 9469 Invalid, 2609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [198 Valid, 1356 Invalid, 0 Unknown, 1055 Unchecked, 1.6s Time] [2022-11-03 04:11:08,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3108 states. [2022-11-03 04:11:08,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3108 to 1525. [2022-11-03 04:11:08,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1525 states, 1493 states have (on average 1.2190221031480242) internal successors, (1820), 1493 states have internal predecessors, (1820), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-11-03 04:11:08,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1525 states to 1525 states and 1880 transitions. [2022-11-03 04:11:08,643 INFO L78 Accepts]: Start accepts. Automaton has 1525 states and 1880 transitions. Word has length 373 [2022-11-03 04:11:08,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:11:08,644 INFO L495 AbstractCegarLoop]: Abstraction has 1525 states and 1880 transitions. [2022-11-03 04:11:08,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 24.136363636363637) internal successors, (531), 22 states have internal predecessors, (531), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2022-11-03 04:11:08,644 INFO L276 IsEmpty]: Start isEmpty. Operand 1525 states and 1880 transitions. [2022-11-03 04:11:08,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 04:11:08,646 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:11:08,646 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:11:08,664 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (144)] Ended with exit code 0 [2022-11-03 04:11:08,858 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (145)] Ended with exit code 0 [2022-11-03 04:11:09,072 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (146)] Ended with exit code 0 [2022-11-03 04:11:09,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 144 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,145 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,146 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:11:09,247 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:11:09,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:11:09,248 INFO L85 PathProgramCache]: Analyzing trace with hash 913980248, now seen corresponding path program 1 times [2022-11-03 04:11:09,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:11:09,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [817875746] [2022-11-03 04:11:09,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:11:09,249 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:11:09,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:11:09,250 INFO L229 MonitoredProcess]: Starting monitored process 147 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:11:09,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (147)] Waiting until timeout for monitored process [2022-11-03 04:11:10,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:11:10,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-03 04:11:10,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:11:12,546 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 32 proven. 207 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 04:11:12,547 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:11:12,627 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:11:12,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [817875746] [2022-11-03 04:11:12,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [817875746] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:11:12,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [154049562] [2022-11-03 04:11:12,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:11:12,627 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:11:12,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:11:12,628 INFO L229 MonitoredProcess]: Starting monitored process 148 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:11:12,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (148)] Waiting until timeout for monitored process [2022-11-03 04:11:14,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:11:14,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-03 04:11:14,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:11:17,196 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 20 proven. 219 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 04:11:17,196 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:11:17,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [154049562] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:11:17,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [602652983] [2022-11-03 04:11:17,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:11:17,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:11:17,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:11:17,347 INFO L229 MonitoredProcess]: Starting monitored process 149 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:11:17,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (149)] Waiting until timeout for monitored process [2022-11-03 04:11:18,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:11:18,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:11:18,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:11:21,337 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 12 proven. 62 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2022-11-03 04:11:21,337 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:11:21,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [602652983] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:11:21,659 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:11:21,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17, 7] total 35 [2022-11-03 04:11:21,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482732864] [2022-11-03 04:11:21,659 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:11:21,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-03 04:11:21,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:11:21,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-03 04:11:21,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=1457, Unknown=0, NotChecked=0, Total=1560 [2022-11-03 04:11:21,661 INFO L87 Difference]: Start difference. First operand 1525 states and 1880 transitions. Second operand has 35 states, 35 states have (on average 24.314285714285713) internal successors, (851), 35 states have internal predecessors, (851), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2022-11-03 04:11:34,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:11:34,120 INFO L93 Difference]: Finished difference Result 5179 states and 6453 transitions. [2022-11-03 04:11:34,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-11-03 04:11:34,121 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 24.314285714285713) internal successors, (851), 35 states have internal predecessors, (851), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) Word has length 373 [2022-11-03 04:11:34,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:11:34,124 INFO L225 Difference]: With dead ends: 5179 [2022-11-03 04:11:34,124 INFO L226 Difference]: Without dead ends: 3780 [2022-11-03 04:11:34,125 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1344 GetRequests, 1228 SyntacticMatches, 0 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3062 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=2669, Invalid=11137, Unknown=0, NotChecked=0, Total=13806 [2022-11-03 04:11:34,126 INFO L413 NwaCegarLoop]: 676 mSDtfsCounter, 9254 mSDsluCounter, 18057 mSDsCounter, 0 mSdLazyCounter, 3079 mSolverCounterSat, 398 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9254 SdHoareTripleChecker+Valid, 18733 SdHoareTripleChecker+Invalid, 7253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 398 IncrementalHoareTripleChecker+Valid, 3079 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3776 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:11:34,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9254 Valid, 18733 Invalid, 7253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [398 Valid, 3079 Invalid, 0 Unknown, 3776 Unchecked, 3.2s Time] [2022-11-03 04:11:34,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3780 states. [2022-11-03 04:11:34,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3780 to 1523. [2022-11-03 04:11:34,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1523 states, 1491 states have (on average 1.21663313212609) internal successors, (1814), 1491 states have internal predecessors, (1814), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-11-03 04:11:34,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1523 states to 1523 states and 1874 transitions. [2022-11-03 04:11:34,383 INFO L78 Accepts]: Start accepts. Automaton has 1523 states and 1874 transitions. Word has length 373 [2022-11-03 04:11:34,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:11:34,383 INFO L495 AbstractCegarLoop]: Abstraction has 1523 states and 1874 transitions. [2022-11-03 04:11:34,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 24.314285714285713) internal successors, (851), 35 states have internal predecessors, (851), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2022-11-03 04:11:34,383 INFO L276 IsEmpty]: Start isEmpty. Operand 1523 states and 1874 transitions. [2022-11-03 04:11:34,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 04:11:34,385 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:11:34,386 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:11:34,408 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (147)] Ended with exit code 0 [2022-11-03 04:11:34,597 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (148)] Ended with exit code 0 [2022-11-03 04:11:34,810 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (149)] Ended with exit code 0 [2022-11-03 04:11:34,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 147 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,148 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,149 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:11:34,986 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:11:34,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:11:34,987 INFO L85 PathProgramCache]: Analyzing trace with hash -428972010, now seen corresponding path program 1 times [2022-11-03 04:11:34,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:11:34,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1992779927] [2022-11-03 04:11:34,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:11:34,988 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:11:34,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:11:34,989 INFO L229 MonitoredProcess]: Starting monitored process 150 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:11:34,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (150)] Waiting until timeout for monitored process [2022-11-03 04:11:35,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:11:35,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-03 04:11:35,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:11:38,385 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 16 proven. 223 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 04:11:38,385 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:11:38,509 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:11:38,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1992779927] [2022-11-03 04:11:38,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1992779927] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:11:38,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1709490276] [2022-11-03 04:11:38,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:11:38,510 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:11:38,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:11:38,511 INFO L229 MonitoredProcess]: Starting monitored process 151 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:11:38,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (151)] Waiting until timeout for monitored process [2022-11-03 04:11:40,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:11:40,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-03 04:11:40,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:11:42,757 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 16 proven. 223 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 04:11:42,757 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:11:42,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1709490276] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:11:42,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2126388442] [2022-11-03 04:11:42,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:11:42,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:11:42,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:11:42,819 INFO L229 MonitoredProcess]: Starting monitored process 152 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:11:42,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (152)] Waiting until timeout for monitored process [2022-11-03 04:11:43,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:11:43,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:11:43,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:11:46,914 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 12 proven. 62 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2022-11-03 04:11:46,914 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:11:47,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2126388442] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:11:47,153 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:11:47,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17, 7] total 22 [2022-11-03 04:11:47,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276880897] [2022-11-03 04:11:47,153 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:11:47,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-03 04:11:47,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:11:47,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-03 04:11:47,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=580, Unknown=0, NotChecked=0, Total=650 [2022-11-03 04:11:47,155 INFO L87 Difference]: Start difference. First operand 1523 states and 1874 transitions. Second operand has 22 states, 22 states have (on average 24.59090909090909) internal successors, (541), 22 states have internal predecessors, (541), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2022-11-03 04:11:52,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:11:52,366 INFO L93 Difference]: Finished difference Result 4089 states and 5048 transitions. [2022-11-03 04:11:52,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-03 04:11:52,366 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 24.59090909090909) internal successors, (541), 22 states have internal predecessors, (541), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 373 [2022-11-03 04:11:52,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:11:52,369 INFO L225 Difference]: With dead ends: 4089 [2022-11-03 04:11:52,369 INFO L226 Difference]: Without dead ends: 2694 [2022-11-03 04:11:52,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1296 GetRequests, 1227 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1016 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1159, Invalid=3811, Unknown=0, NotChecked=0, Total=4970 [2022-11-03 04:11:52,370 INFO L413 NwaCegarLoop]: 487 mSDtfsCounter, 6110 mSDsluCounter, 6594 mSDsCounter, 0 mSdLazyCounter, 1092 mSolverCounterSat, 194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6110 SdHoareTripleChecker+Valid, 7081 SdHoareTripleChecker+Invalid, 2581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 1092 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1295 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:11:52,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6110 Valid, 7081 Invalid, 2581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 1092 Invalid, 0 Unknown, 1295 Unchecked, 1.3s Time] [2022-11-03 04:11:52,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2694 states. [2022-11-03 04:11:52,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2694 to 1523. [2022-11-03 04:11:52,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1523 states, 1491 states have (on average 1.21663313212609) internal successors, (1814), 1491 states have internal predecessors, (1814), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-11-03 04:11:52,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1523 states to 1523 states and 1874 transitions. [2022-11-03 04:11:52,645 INFO L78 Accepts]: Start accepts. Automaton has 1523 states and 1874 transitions. Word has length 373 [2022-11-03 04:11:52,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:11:52,645 INFO L495 AbstractCegarLoop]: Abstraction has 1523 states and 1874 transitions. [2022-11-03 04:11:52,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 24.59090909090909) internal successors, (541), 22 states have internal predecessors, (541), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2022-11-03 04:11:52,645 INFO L276 IsEmpty]: Start isEmpty. Operand 1523 states and 1874 transitions. [2022-11-03 04:11:52,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 04:11:52,647 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:11:52,648 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:11:52,672 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (152)] Ended with exit code 0 [2022-11-03 04:11:52,865 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (150)] Forceful destruction successful, exit code 0 [2022-11-03 04:11:53,059 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (151)] Forceful destruction successful, exit code 0 [2022-11-03 04:11:53,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 152 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,150 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,151 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 04:11:53,248 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:11:53,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:11:53,249 INFO L85 PathProgramCache]: Analyzing trace with hash -821999020, now seen corresponding path program 1 times [2022-11-03 04:11:53,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:11:53,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [98726742] [2022-11-03 04:11:53,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:11:53,250 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:11:53,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:11:53,251 INFO L229 MonitoredProcess]: Starting monitored process 153 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:11:53,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (153)] Waiting until timeout for monitored process [2022-11-03 04:11:54,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:11:54,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 56 conjunts are in the unsatisfiable core [2022-11-03 04:11:54,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:11:57,648 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 27 proven. 236 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2022-11-03 04:11:57,649 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:11:57,772 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:11:57,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [98726742] [2022-11-03 04:11:57,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [98726742] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:11:57,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2071661623] [2022-11-03 04:11:57,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:11:57,773 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:11:57,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:11:57,774 INFO L229 MonitoredProcess]: Starting monitored process 154 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:11:57,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (154)] Waiting until timeout for monitored process [2022-11-03 04:11:59,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:11:59,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 37 conjunts are in the unsatisfiable core [2022-11-03 04:11:59,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:12:02,123 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 8 proven. 231 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 04:12:02,123 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:12:02,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2071661623] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:12:02,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1950814273] [2022-11-03 04:12:02,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:12:02,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:12:02,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:12:02,496 INFO L229 MonitoredProcess]: Starting monitored process 155 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:12:02,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (155)] Waiting until timeout for monitored process [2022-11-03 04:12:03,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:12:03,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 04:12:03,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:12:04,653 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 8 proven. 82 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2022-11-03 04:12:04,653 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:12:04,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1950814273] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:12:04,921 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:12:04,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 14, 9] total 36 [2022-11-03 04:12:04,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083570219] [2022-11-03 04:12:04,921 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:12:04,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-11-03 04:12:04,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:12:04,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-11-03 04:12:04,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=1405, Unknown=0, NotChecked=0, Total=1560 [2022-11-03 04:12:04,923 INFO L87 Difference]: Start difference. First operand 1523 states and 1874 transitions. Second operand has 36 states, 35 states have (on average 19.8) internal successors, (693), 36 states have internal predecessors, (693), 8 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 8 states have call predecessors, (21), 8 states have call successors, (21) [2022-11-03 04:12:19,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:12:19,966 INFO L93 Difference]: Finished difference Result 5481 states and 6687 transitions. [2022-11-03 04:12:19,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-11-03 04:12:19,967 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 19.8) internal successors, (693), 36 states have internal predecessors, (693), 8 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 8 states have call predecessors, (21), 8 states have call successors, (21) Word has length 373 [2022-11-03 04:12:19,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:12:19,969 INFO L225 Difference]: With dead ends: 5481 [2022-11-03 04:12:19,969 INFO L226 Difference]: Without dead ends: 4088 [2022-11-03 04:12:19,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1340 GetRequests, 1213 SyntacticMatches, 2 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4440 ImplicationChecksByTransitivity, 11.8s TimeCoverageRelationStatistics Valid=2736, Invalid=13266, Unknown=0, NotChecked=0, Total=16002 [2022-11-03 04:12:19,971 INFO L413 NwaCegarLoop]: 431 mSDtfsCounter, 9811 mSDsluCounter, 11486 mSDsCounter, 0 mSdLazyCounter, 3111 mSolverCounterSat, 543 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9811 SdHoareTripleChecker+Valid, 11917 SdHoareTripleChecker+Invalid, 5645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 543 IncrementalHoareTripleChecker+Valid, 3111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1991 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:12:19,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9811 Valid, 11917 Invalid, 5645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [543 Valid, 3111 Invalid, 0 Unknown, 1991 Unchecked, 3.3s Time] [2022-11-03 04:12:19,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4088 states. [2022-11-03 04:12:20,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4088 to 1715. [2022-11-03 04:12:20,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1715 states, 1677 states have (on average 1.2057245080500893) internal successors, (2022), 1677 states have internal predecessors, (2022), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2022-11-03 04:12:20,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1715 states to 1715 states and 2094 transitions. [2022-11-03 04:12:20,323 INFO L78 Accepts]: Start accepts. Automaton has 1715 states and 2094 transitions. Word has length 373 [2022-11-03 04:12:20,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:12:20,324 INFO L495 AbstractCegarLoop]: Abstraction has 1715 states and 2094 transitions. [2022-11-03 04:12:20,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 19.8) internal successors, (693), 36 states have internal predecessors, (693), 8 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 8 states have call predecessors, (21), 8 states have call successors, (21) [2022-11-03 04:12:20,324 INFO L276 IsEmpty]: Start isEmpty. Operand 1715 states and 2094 transitions. [2022-11-03 04:12:20,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 04:12:20,329 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:12:20,329 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:12:20,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (155)] Forceful destruction successful, exit code 0 [2022-11-03 04:12:20,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (154)] Forceful destruction successful, exit code 0 [2022-11-03 04:12:20,747 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (153)] Ended with exit code 0 [2022-11-03 04:12:20,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 155 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,154 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,153 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:12:20,930 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:12:20,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:12:20,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1631345646, now seen corresponding path program 1 times [2022-11-03 04:12:20,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:12:20,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1471363137] [2022-11-03 04:12:20,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:12:20,932 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:12:20,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:12:20,933 INFO L229 MonitoredProcess]: Starting monitored process 156 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:12:20,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (156)] Waiting until timeout for monitored process [2022-11-03 04:12:21,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:12:21,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 37 conjunts are in the unsatisfiable core [2022-11-03 04:12:21,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:12:23,716 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 116 proven. 6 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2022-11-03 04:12:23,717 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:12:24,388 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:12:24,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1471363137] [2022-11-03 04:12:24,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1471363137] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:12:24,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [957652393] [2022-11-03 04:12:24,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:12:24,388 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:12:24,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:12:24,389 INFO L229 MonitoredProcess]: Starting monitored process 157 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:12:24,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (157)] Waiting until timeout for monitored process [2022-11-03 04:12:26,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:12:26,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 38 conjunts are in the unsatisfiable core [2022-11-03 04:12:26,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:12:28,006 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 116 proven. 6 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2022-11-03 04:12:28,007 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:12:28,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [957652393] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:12:28,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2093944127] [2022-11-03 04:12:28,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:12:28,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:12:28,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:12:28,491 INFO L229 MonitoredProcess]: Starting monitored process 158 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:12:28,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (158)] Waiting until timeout for monitored process [2022-11-03 04:12:29,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:12:29,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 40 conjunts are in the unsatisfiable core [2022-11-03 04:12:29,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:12:30,992 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 116 proven. 7 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2022-11-03 04:12:30,992 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:12:31,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2093944127] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:12:31,472 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:12:31,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 20] total 20 [2022-11-03 04:12:31,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284958515] [2022-11-03 04:12:31,473 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:12:31,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-03 04:12:31,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:12:31,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-03 04:12:31,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=581, Unknown=0, NotChecked=0, Total=650 [2022-11-03 04:12:31,475 INFO L87 Difference]: Start difference. First operand 1715 states and 2094 transitions. Second operand has 20 states, 20 states have (on average 12.15) internal successors, (243), 20 states have internal predecessors, (243), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:12:33,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:12:33,387 INFO L93 Difference]: Finished difference Result 2635 states and 3236 transitions. [2022-11-03 04:12:33,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-03 04:12:33,388 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 12.15) internal successors, (243), 20 states have internal predecessors, (243), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 373 [2022-11-03 04:12:33,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:12:33,390 INFO L225 Difference]: With dead ends: 2635 [2022-11-03 04:12:33,390 INFO L226 Difference]: Without dead ends: 2633 [2022-11-03 04:12:33,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1263 GetRequests, 1220 SyntacticMatches, 4 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=228, Invalid=1412, Unknown=0, NotChecked=0, Total=1640 [2022-11-03 04:12:33,391 INFO L413 NwaCegarLoop]: 349 mSDtfsCounter, 541 mSDsluCounter, 5084 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 541 SdHoareTripleChecker+Valid, 5433 SdHoareTripleChecker+Invalid, 1060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 639 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 04:12:33,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [541 Valid, 5433 Invalid, 1060 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 412 Invalid, 0 Unknown, 639 Unchecked, 0.5s Time] [2022-11-03 04:12:33,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2633 states. [2022-11-03 04:12:33,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2633 to 2031. [2022-11-03 04:12:33,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2031 states, 1981 states have (on average 1.209490156486623) internal successors, (2396), 1981 states have internal predecessors, (2396), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2022-11-03 04:12:33,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2031 states to 2031 states and 2492 transitions. [2022-11-03 04:12:33,868 INFO L78 Accepts]: Start accepts. Automaton has 2031 states and 2492 transitions. Word has length 373 [2022-11-03 04:12:33,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:12:33,869 INFO L495 AbstractCegarLoop]: Abstraction has 2031 states and 2492 transitions. [2022-11-03 04:12:33,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 12.15) internal successors, (243), 20 states have internal predecessors, (243), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:12:33,869 INFO L276 IsEmpty]: Start isEmpty. Operand 2031 states and 2492 transitions. [2022-11-03 04:12:33,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 04:12:33,872 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:12:33,873 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:12:33,908 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (158)] Forceful destruction successful, exit code 0 [2022-11-03 04:12:34,090 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (156)] Ended with exit code 0 [2022-11-03 04:12:34,284 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (157)] Ended with exit code 0 [2022-11-03 04:12:34,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 158 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,156 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,157 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 04:12:34,473 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:12:34,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:12:34,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1574087344, now seen corresponding path program 2 times [2022-11-03 04:12:34,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:12:34,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1178005121] [2022-11-03 04:12:34,476 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-03 04:12:34,476 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:12:34,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:12:34,477 INFO L229 MonitoredProcess]: Starting monitored process 159 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:12:34,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13b84161-f4a0-4b08-8a47-81320d4f9881/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (159)] Waiting until timeout for monitored process [2022-11-03 04:12:35,284 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-03 04:12:35,284 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 04:12:35,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 56 conjunts are in the unsatisfiable core [2022-11-03 04:12:35,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:12:39,400 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 23 proven. 240 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2022-11-03 04:12:39,400 INFO L328 TraceCheckSpWp]: Computing backward predicates...