./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.protocols.1.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/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_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.protocols.1.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/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_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/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 aa839a4e8ed9339d6ad436e2f1e2721e6ff88794668222413ef781c5602de5f5 --- 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 03:45:19,559 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:45:19,561 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:45:19,611 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:45:19,611 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:45:19,616 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:45:19,619 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:45:19,622 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:45:19,627 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:45:19,632 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:45:19,633 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:45:19,635 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:45:19,636 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:45:19,640 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:45:19,642 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:45:19,644 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:45:19,646 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:45:19,651 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:45:19,653 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:45:19,655 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:45:19,660 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:45:19,661 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:45:19,662 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:45:19,663 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:45:19,666 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:45:19,667 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:45:19,667 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:45:19,668 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:45:19,668 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:45:19,669 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:45:19,670 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:45:19,670 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:45:19,671 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:45:19,672 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:45:19,673 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:45:19,673 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:45:19,674 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:45:19,674 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:45:19,675 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:45:19,676 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:45:19,676 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:45:19,677 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 03:45:19,702 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:45:19,702 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:45:19,702 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:45:19,703 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:45:19,703 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:45:19,703 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:45:19,704 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:45:19,704 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:45:19,704 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:45:19,704 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:45:19,705 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:45:19,705 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:45:19,705 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:45:19,705 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:45:19,706 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:45:19,706 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:45:19,706 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:45:19,706 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:45:19,707 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:45:19,707 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:45:19,708 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:45:19,708 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:45:19,708 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:45:19,708 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:45:19,708 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:45:19,709 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:45:19,709 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:45:19,709 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:45:19,709 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:45:19,709 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:45:19,710 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:45:19,710 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:45:19,710 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:45:19,710 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:45:19,710 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:45:19,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:45:19,711 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:45:19,711 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:45:19,711 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_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa839a4e8ed9339d6ad436e2f1e2721e6ff88794668222413ef781c5602de5f5 [2022-11-03 03:45:20,083 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:45:20,115 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:45:20,118 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:45:20,119 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:45:20,120 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:45:20,121 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.protocols.1.prop1-func-interl.c [2022-11-03 03:45:20,206 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/data/2208d2a0c/caae719f1f27487ea96ec436d0e62c0b/FLAGa77f7f246 [2022-11-03 03:45:20,953 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:45:20,958 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.protocols.1.prop1-func-interl.c [2022-11-03 03:45:20,969 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/data/2208d2a0c/caae719f1f27487ea96ec436d0e62c0b/FLAGa77f7f246 [2022-11-03 03:45:21,190 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/data/2208d2a0c/caae719f1f27487ea96ec436d0e62c0b [2022-11-03 03:45:21,193 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:45:21,194 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:45:21,200 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:45:21,200 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:45:21,204 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:45:21,205 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:45:21" (1/1) ... [2022-11-03 03:45:21,207 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fc62e65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:21, skipping insertion in model container [2022-11-03 03:45:21,207 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:45:21" (1/1) ... [2022-11-03 03:45:21,215 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:45:21,265 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:45:21,524 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_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.protocols.1.prop1-func-interl.c[1014,1027] [2022-11-03 03:45:21,793 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:45:21,797 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:45:21,810 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_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.protocols.1.prop1-func-interl.c[1014,1027] [2022-11-03 03:45:21,964 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:45:21,977 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:45:21,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:21 WrapperNode [2022-11-03 03:45:21,978 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:45:21,979 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:45:21,979 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:45:21,979 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:45:21,988 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:21" (1/1) ... [2022-11-03 03:45:22,025 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:21" (1/1) ... [2022-11-03 03:45:22,211 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 968 [2022-11-03 03:45:22,212 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:45:22,213 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:45:22,213 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:45:22,213 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:45:22,224 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:21" (1/1) ... [2022-11-03 03:45:22,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:21" (1/1) ... [2022-11-03 03:45:22,255 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:21" (1/1) ... [2022-11-03 03:45:22,256 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:21" (1/1) ... [2022-11-03 03:45:22,321 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:21" (1/1) ... [2022-11-03 03:45:22,327 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:21" (1/1) ... [2022-11-03 03:45:22,337 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:21" (1/1) ... [2022-11-03 03:45:22,350 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:21" (1/1) ... [2022-11-03 03:45:22,372 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:45:22,373 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:45:22,373 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:45:22,374 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:45:22,375 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:21" (1/1) ... [2022-11-03 03:45:22,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:45:22,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:45:22,409 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:45:22,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:45:22,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:45:22,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:45:22,771 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:45:22,773 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:46:23,176 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:46:28,760 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:46:28,760 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 03:46:28,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:46:28 BoogieIcfgContainer [2022-11-03 03:46:28,765 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:46:28,768 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:46:28,768 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:46:28,772 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:46:28,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:45:21" (1/3) ... [2022-11-03 03:46:28,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16172c5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:46:28, skipping insertion in model container [2022-11-03 03:46:28,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:21" (2/3) ... [2022-11-03 03:46:28,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16172c5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:46:28, skipping insertion in model container [2022-11-03 03:46:28,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:46:28" (3/3) ... [2022-11-03 03:46:28,776 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.protocols.1.prop1-func-interl.c [2022-11-03 03:46:28,795 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:46:28,796 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:46:28,845 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:46:28,852 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;@1e4810de, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:46:28,852 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:46:28,857 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:46:28,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-03 03:46:28,864 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:46:28,864 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-03 03:46:28,865 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:46:28,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:46:28,871 INFO L85 PathProgramCache]: Analyzing trace with hash 3495575, now seen corresponding path program 1 times [2022-11-03 03:46:28,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:46:28,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201698454] [2022-11-03 03:46:28,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:46:28,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:46:29,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:46:30,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:46:30,304 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:46:30,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201698454] [2022-11-03 03:46:30,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201698454] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:46:30,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:46:30,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:46:30,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769663786] [2022-11-03 03:46:30,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:46:30,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 03:46:30,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:46:30,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 03:46:30,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:46:30,358 INFO L87 Difference]: Start difference. First operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:46:32,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 03:46:32,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:46:32,647 INFO L93 Difference]: Finished difference Result 15 states and 20 transitions. [2022-11-03 03:46:32,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 03:46:32,650 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-03 03:46:32,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:46:32,670 INFO L225 Difference]: With dead ends: 15 [2022-11-03 03:46:32,670 INFO L226 Difference]: Without dead ends: 9 [2022-11-03 03:46:32,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 03:46:32,677 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:46:32,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-11-03 03:46:32,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-11-03 03:46:32,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2022-11-03 03:46:32,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:46:32,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2022-11-03 03:46:32,755 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2022-11-03 03:46:32,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:46:32,756 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2022-11-03 03:46:32,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:46:32,756 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2022-11-03 03:46:32,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-03 03:46:32,757 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:46:32,757 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2022-11-03 03:46:32,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 03:46:32,758 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:46:32,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:46:32,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1065006872, now seen corresponding path program 1 times [2022-11-03 03:46:32,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:46:32,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160904151] [2022-11-03 03:46:32,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:46:32,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:47:17,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 03:47:17,272 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-03 03:47:48,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 03:47:48,820 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-03 03:47:48,820 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-03 03:47:48,822 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 03:47:48,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 03:47:48,828 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-03 03:47:48,832 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 03:47:48,946 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-03 03:47:48,947 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-03 03:47:49,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 03:47:49 BoogieIcfgContainer [2022-11-03 03:47:49,008 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 03:47:49,009 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 03:47:49,009 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 03:47:49,010 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 03:47:49,017 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:46:28" (3/4) ... [2022-11-03 03:47:49,021 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-03 03:47:49,021 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 03:47:49,023 INFO L158 Benchmark]: Toolchain (without parser) took 147827.70ms. Allocated memory was 130.0MB in the beginning and 2.0GB in the end (delta: 1.9GB). Free memory was 97.1MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 425.2MB. Max. memory is 16.1GB. [2022-11-03 03:47:49,026 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 83.9MB. Free memory was 38.7MB in the beginning and 38.6MB in the end (delta: 86.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 03:47:49,031 INFO L158 Benchmark]: CACSL2BoogieTranslator took 778.39ms. Allocated memory is still 130.0MB. Free memory was 96.8MB in the beginning and 79.4MB in the end (delta: 17.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-03 03:47:49,032 INFO L158 Benchmark]: Boogie Procedure Inliner took 233.26ms. Allocated memory is still 130.0MB. Free memory was 79.4MB in the beginning and 86.3MB in the end (delta: -6.9MB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. [2022-11-03 03:47:49,033 INFO L158 Benchmark]: Boogie Preprocessor took 159.91ms. Allocated memory is still 130.0MB. Free memory was 86.3MB in the beginning and 73.6MB in the end (delta: 12.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-03 03:47:49,034 INFO L158 Benchmark]: RCFGBuilder took 66392.46ms. Allocated memory was 130.0MB in the beginning and 692.1MB in the end (delta: 562.0MB). Free memory was 73.6MB in the beginning and 462.6MB in the end (delta: -389.0MB). Peak memory consumption was 408.3MB. Max. memory is 16.1GB. [2022-11-03 03:47:49,035 INFO L158 Benchmark]: TraceAbstraction took 80240.99ms. Allocated memory was 692.1MB in the beginning and 2.0GB in the end (delta: 1.3GB). Free memory was 462.6MB in the beginning and 1.6GB in the end (delta: -1.1GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2022-11-03 03:47:49,038 INFO L158 Benchmark]: Witness Printer took 11.97ms. Allocated memory is still 2.0GB. Free memory was 1.6GB in the beginning and 1.6GB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 03:47:49,043 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 83.9MB. Free memory was 38.7MB in the beginning and 38.6MB in the end (delta: 86.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 778.39ms. Allocated memory is still 130.0MB. Free memory was 96.8MB in the beginning and 79.4MB in the end (delta: 17.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 233.26ms. Allocated memory is still 130.0MB. Free memory was 79.4MB in the beginning and 86.3MB in the end (delta: -6.9MB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 159.91ms. Allocated memory is still 130.0MB. Free memory was 86.3MB in the beginning and 73.6MB in the end (delta: 12.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 66392.46ms. Allocated memory was 130.0MB in the beginning and 692.1MB in the end (delta: 562.0MB). Free memory was 73.6MB in the beginning and 462.6MB in the end (delta: -389.0MB). Peak memory consumption was 408.3MB. Max. memory is 16.1GB. * TraceAbstraction took 80240.99ms. Allocated memory was 692.1MB in the beginning and 2.0GB in the end (delta: 1.3GB). Free memory was 462.6MB in the beginning and 1.6GB in the end (delta: -1.1GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. * Witness Printer took 11.97ms. Allocated memory is still 2.0GB. Free memory was 1.6GB in the beginning and 1.6GB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. 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 bitwiseComplement at line 162, overapproximation of bitwiseOr at line 161, overapproximation of bitwiseAnd at line 138. 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_2 mask_SORT_2 = (SORT_2)-1 >> (sizeof(SORT_2) * 8 - 8); [L29] const SORT_2 msb_SORT_2 = (SORT_2)1 << (8 - 1); [L31] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 24); [L32] const SORT_3 msb_SORT_3 = (SORT_3)1 << (24 - 1); [L34] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 32); [L35] const SORT_4 msb_SORT_4 = (SORT_4)1 << (32 - 1); [L37] const SORT_2 var_5 = 0; [L38] const SORT_1 var_20 = 0; [L39] const SORT_2 var_64 = 0; [L40] const SORT_4 var_66 = 1; [L41] const SORT_3 var_67 = 0; [L42] const SORT_2 var_85 = 1; [L43] const SORT_4 var_151 = 3; [L45] SORT_1 input_60; [L46] SORT_1 input_63; [L47] SORT_1 input_65; [L48] SORT_1 input_75; [L49] SORT_1 input_81; [L50] SORT_1 input_84; [L51] SORT_1 input_86; [L52] SORT_1 input_106; [L53] SORT_1 input_108; [L54] SORT_1 input_119; [L55] SORT_1 input_121; [L56] SORT_1 input_125; [L57] SORT_1 input_127; [L59] SORT_2 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L60] SORT_2 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L61] SORT_2 state_10 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L62] SORT_2 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L63] SORT_2 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L64] SORT_2 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L65] SORT_2 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L66] SORT_1 state_21 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L67] SORT_1 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L68] SORT_1 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L69] SORT_1 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L70] SORT_1 state_29 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L71] SORT_1 state_31 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L72] SORT_1 state_33 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L73] SORT_1 state_35 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L74] SORT_1 state_37 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L75] SORT_1 state_39 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L76] SORT_1 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L77] SORT_1 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L78] SORT_1 state_45 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L79] SORT_1 state_47 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L80] SORT_1 state_49 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L81] SORT_1 state_51 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L82] SORT_1 state_53 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L83] SORT_1 state_55 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L85] SORT_2 init_7_arg_1 = var_5; [L86] state_6 = init_7_arg_1 [L87] SORT_2 init_9_arg_1 = var_5; [L88] state_8 = init_9_arg_1 [L89] SORT_2 init_11_arg_1 = var_5; [L90] state_10 = init_11_arg_1 [L91] SORT_2 init_13_arg_1 = var_5; [L92] state_12 = init_13_arg_1 [L93] SORT_2 init_15_arg_1 = var_5; [L94] state_14 = init_15_arg_1 [L95] SORT_2 init_17_arg_1 = var_5; [L96] state_16 = init_17_arg_1 [L97] SORT_2 init_19_arg_1 = var_5; [L98] state_18 = init_19_arg_1 [L99] SORT_1 init_22_arg_1 = var_20; [L100] state_21 = init_22_arg_1 [L101] SORT_1 init_24_arg_1 = var_20; [L102] state_23 = init_24_arg_1 [L103] SORT_1 init_26_arg_1 = var_20; [L104] state_25 = init_26_arg_1 [L105] SORT_1 init_28_arg_1 = var_20; [L106] state_27 = init_28_arg_1 [L107] SORT_1 init_30_arg_1 = var_20; [L108] state_29 = init_30_arg_1 [L109] SORT_1 init_32_arg_1 = var_20; [L110] state_31 = init_32_arg_1 [L111] SORT_1 init_34_arg_1 = var_20; [L112] state_33 = init_34_arg_1 [L113] SORT_1 init_36_arg_1 = var_20; [L114] state_35 = init_36_arg_1 [L115] SORT_1 init_38_arg_1 = var_20; [L116] state_37 = init_38_arg_1 [L117] SORT_1 init_40_arg_1 = var_20; [L118] state_39 = init_40_arg_1 [L119] SORT_1 init_42_arg_1 = var_20; [L120] state_41 = init_42_arg_1 [L121] SORT_1 init_44_arg_1 = var_20; [L122] state_43 = init_44_arg_1 [L123] SORT_1 init_46_arg_1 = var_20; [L124] state_45 = init_46_arg_1 [L125] SORT_1 init_48_arg_1 = var_20; [L126] state_47 = init_48_arg_1 [L127] SORT_1 init_50_arg_1 = var_20; [L128] state_49 = init_50_arg_1 [L129] SORT_1 init_52_arg_1 = var_20; [L130] state_51 = init_52_arg_1 [L131] SORT_1 init_54_arg_1 = var_20; [L132] state_53 = init_54_arg_1 [L133] SORT_1 init_56_arg_1 = var_20; [L134] state_55 = init_56_arg_1 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_32_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_54_arg_1=0, init_56_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_6=0, state_8=0, var_151=3, var_20=0, var_5=0, var_64=0, var_66=1, var_67=0, var_85=1] [L137] input_60 = __VERIFIER_nondet_uchar() [L138] input_60 = input_60 & mask_SORT_1 [L139] input_63 = __VERIFIER_nondet_uchar() [L140] input_63 = input_63 & mask_SORT_1 [L141] input_65 = __VERIFIER_nondet_uchar() [L142] input_65 = input_65 & mask_SORT_1 [L143] input_75 = __VERIFIER_nondet_uchar() [L144] input_75 = input_75 & mask_SORT_1 [L145] input_81 = __VERIFIER_nondet_uchar() [L146] input_81 = input_81 & mask_SORT_1 [L147] input_84 = __VERIFIER_nondet_uchar() [L148] input_84 = input_84 & mask_SORT_1 [L149] input_86 = __VERIFIER_nondet_uchar() [L150] input_86 = input_86 & mask_SORT_1 [L151] input_106 = __VERIFIER_nondet_uchar() [L152] input_108 = __VERIFIER_nondet_uchar() [L153] input_119 = __VERIFIER_nondet_uchar() [L154] input_121 = __VERIFIER_nondet_uchar() [L155] input_125 = __VERIFIER_nondet_uchar() [L156] input_127 = __VERIFIER_nondet_uchar() [L159] SORT_1 var_57_arg_0 = state_43; [L160] SORT_1 var_57_arg_1 = state_45; [L161] SORT_1 var_57 = var_57_arg_0 | var_57_arg_1; [L162] SORT_1 var_58_arg_0 = ~state_55; [L163] var_58_arg_0 = var_58_arg_0 & mask_SORT_1 [L164] SORT_1 var_58_arg_1 = var_57; [L165] SORT_1 var_58 = var_58_arg_0 & var_58_arg_1; [L166] var_58 = var_58 & mask_SORT_1 [L167] SORT_1 bad_59_arg_0 = var_58; [L168] CALL __VERIFIER_assert(!(bad_59_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L168] RET __VERIFIER_assert(!(bad_59_arg_0)) [L170] SORT_1 var_61_arg_0 = input_60; [L171] SORT_2 var_61_arg_1 = state_16; [L172] SORT_2 var_61_arg_2 = state_6; [L173] EXPR var_61_arg_0 ? var_61_arg_1 : var_61_arg_2 [L173] SORT_2 var_61 = var_61_arg_0 ? var_61_arg_1 : var_61_arg_2; [L174] SORT_2 next_62_arg_1 = var_61; [L175] SORT_3 var_68_arg_0 = var_67; [L176] SORT_2 var_68_arg_1 = state_8; [L177] SORT_4 var_68 = ((SORT_4)var_68_arg_0 << 8) | var_68_arg_1; [L178] var_68 = var_68 & mask_SORT_4 [L179] SORT_4 var_69_arg_0 = var_66; [L180] SORT_4 var_69_arg_1 = var_68; [L181] SORT_4 var_69 = var_69_arg_0 + var_69_arg_1; [L182] SORT_4 var_70_arg_0 = var_69; [L183] SORT_2 var_70 = var_70_arg_0 >> 0; [L184] SORT_1 var_71_arg_0 = input_65; [L185] SORT_2 var_71_arg_1 = var_70; [L186] SORT_2 var_71_arg_2 = state_8; [L187] EXPR var_71_arg_0 ? var_71_arg_1 : var_71_arg_2 [L187] SORT_2 var_71 = var_71_arg_0 ? var_71_arg_1 : var_71_arg_2; [L188] SORT_1 var_72_arg_0 = input_63; [L189] SORT_2 var_72_arg_1 = var_64; [L190] SORT_2 var_72_arg_2 = var_71; [L191] EXPR var_72_arg_0 ? var_72_arg_1 : var_72_arg_2 [L191] SORT_2 var_72 = var_72_arg_0 ? var_72_arg_1 : var_72_arg_2; [L192] var_72 = var_72 & mask_SORT_2 [L193] SORT_2 next_73_arg_1 = var_72; [L194] SORT_2 next_74_arg_1 = state_10; [L195] SORT_3 var_76_arg_0 = var_67; [L196] SORT_2 var_76_arg_1 = state_12; [L197] SORT_4 var_76 = ((SORT_4)var_76_arg_0 << 8) | var_76_arg_1; [L198] var_76 = var_76 & mask_SORT_4 [L199] SORT_4 var_77_arg_0 = var_66; [L200] SORT_4 var_77_arg_1 = var_76; [L201] SORT_4 var_77 = var_77_arg_0 + var_77_arg_1; [L202] SORT_4 var_78_arg_0 = var_77; [L203] SORT_2 var_78 = var_78_arg_0 >> 0; [L204] SORT_1 var_79_arg_0 = input_75; [L205] SORT_2 var_79_arg_1 = var_78; [L206] SORT_2 var_79_arg_2 = state_12; [L207] EXPR var_79_arg_0 ? var_79_arg_1 : var_79_arg_2 [L207] SORT_2 var_79 = var_79_arg_0 ? var_79_arg_1 : var_79_arg_2; [L208] var_79 = var_79 & mask_SORT_2 [L209] SORT_2 next_80_arg_1 = var_79; [L210] SORT_1 var_82_arg_0 = input_81; [L211] SORT_2 var_82_arg_1 = state_18; [L212] SORT_2 var_82_arg_2 = state_14; [L213] EXPR var_82_arg_0 ? var_82_arg_1 : var_82_arg_2 [L213] SORT_2 var_82 = var_82_arg_0 ? var_82_arg_1 : var_82_arg_2; [L214] var_82 = var_82 & mask_SORT_2 [L215] SORT_2 next_83_arg_1 = var_82; [L216] SORT_1 var_87_arg_0 = input_86; [L217] SORT_2 var_87_arg_1 = var_64; [L218] SORT_2 var_87_arg_2 = state_16; [L219] EXPR var_87_arg_0 ? var_87_arg_1 : var_87_arg_2 [L219] SORT_2 var_87 = var_87_arg_0 ? var_87_arg_1 : var_87_arg_2; [L220] SORT_1 var_88_arg_0 = input_84; [L221] SORT_2 var_88_arg_1 = var_85; [L222] SORT_2 var_88_arg_2 = var_87; [L223] EXPR var_88_arg_0 ? var_88_arg_1 : var_88_arg_2 [L223] SORT_2 var_88 = var_88_arg_0 ? var_88_arg_1 : var_88_arg_2; [L224] SORT_2 next_89_arg_1 = var_88; [L225] SORT_1 var_90_arg_0 = input_63; [L226] SORT_2 var_90_arg_1 = state_6; [L227] SORT_2 var_90_arg_2 = state_18; [L228] EXPR var_90_arg_0 ? var_90_arg_1 : var_90_arg_2 [L228] SORT_2 var_90 = var_90_arg_0 ? var_90_arg_1 : var_90_arg_2; [L229] SORT_2 next_91_arg_1 = var_90; [L230] SORT_1 var_92_arg_0 = ~state_21; [L231] var_92_arg_0 = var_92_arg_0 & mask_SORT_1 [L232] SORT_1 var_92_arg_1 = input_65; [L233] SORT_1 var_92 = var_92_arg_0 | var_92_arg_1; [L234] SORT_1 var_93_arg_0 = var_92; [L235] SORT_1 var_93_arg_1 = ~input_60; [L236] var_93_arg_1 = var_93_arg_1 & mask_SORT_1 [L237] SORT_1 var_93 = var_93_arg_0 & var_93_arg_1; [L238] SORT_1 var_94_arg_0 = var_93; [L239] SORT_1 var_94_arg_1 = input_63; [L240] SORT_1 var_94 = var_94_arg_0 | var_94_arg_1; [L241] SORT_1 next_95_arg_1 = ~var_94; [L242] next_95_arg_1 = next_95_arg_1 & mask_SORT_1 [L243] SORT_1 var_96_arg_0 = state_23; [L244] SORT_1 var_96_arg_1 = ~input_65; [L245] var_96_arg_1 = var_96_arg_1 & mask_SORT_1 [L246] SORT_1 var_96 = var_96_arg_0 & var_96_arg_1; [L247] SORT_1 var_97_arg_0 = var_96; [L248] SORT_1 var_97_arg_1 = input_60; [L249] SORT_1 var_97 = var_97_arg_0 | var_97_arg_1; [L250] SORT_1 var_98_arg_0 = var_97; [L251] SORT_1 var_98_arg_1 = ~input_63; [L252] var_98_arg_1 = var_98_arg_1 & mask_SORT_1 [L253] SORT_1 var_98 = var_98_arg_0 & var_98_arg_1; [L254] SORT_1 next_99_arg_1 = var_98; [L255] SORT_1 next_100_arg_1 = state_25; [L256] SORT_1 var_101_arg_0 = ~state_27; [L257] var_101_arg_0 = var_101_arg_0 & mask_SORT_1 [L258] SORT_1 var_101_arg_1 = input_75; [L259] SORT_1 var_101 = var_101_arg_0 | var_101_arg_1; [L260] SORT_1 next_102_arg_1 = ~var_101; [L261] next_102_arg_1 = next_102_arg_1 & mask_SORT_1 [L262] SORT_1 var_103_arg_0 = state_29; [L263] SORT_1 var_103_arg_1 = ~input_75; [L264] var_103_arg_1 = var_103_arg_1 & mask_SORT_1 [L265] SORT_1 var_103 = var_103_arg_0 & var_103_arg_1; [L266] SORT_1 next_104_arg_1 = var_103; [L267] SORT_1 next_105_arg_1 = state_31; [L268] SORT_1 var_107_arg_0 = ~state_33; [L269] var_107_arg_0 = var_107_arg_0 & mask_SORT_1 [L270] SORT_1 var_107_arg_1 = ~input_106; [L271] var_107_arg_1 = var_107_arg_1 & mask_SORT_1 [L272] SORT_1 var_107 = var_107_arg_0 & var_107_arg_1; [L273] SORT_1 var_109_arg_0 = var_107; [L274] SORT_1 var_109_arg_1 = ~input_108; [L275] var_109_arg_1 = var_109_arg_1 & mask_SORT_1 [L276] SORT_1 var_109 = var_109_arg_0 & var_109_arg_1; [L277] SORT_1 var_110_arg_0 = var_109; [L278] SORT_1 var_110_arg_1 = input_86; [L279] SORT_1 var_110 = var_110_arg_0 | var_110_arg_1; [L280] SORT_1 var_111_arg_0 = var_110; [L281] SORT_1 var_111_arg_1 = input_84; [L282] SORT_1 var_111 = var_111_arg_0 | var_111_arg_1; [L283] SORT_1 next_112_arg_1 = ~var_111; [L284] next_112_arg_1 = next_112_arg_1 & mask_SORT_1 [L285] SORT_1 var_113_arg_0 = state_35; [L286] SORT_1 var_113_arg_1 = input_106; [L287] SORT_1 var_113 = var_113_arg_0 | var_113_arg_1; [L288] SORT_1 var_114_arg_0 = var_113; [L289] SORT_1 var_114_arg_1 = ~input_86; [L290] var_114_arg_1 = var_114_arg_1 & mask_SORT_1 [L291] SORT_1 var_114 = var_114_arg_0 & var_114_arg_1; [L292] SORT_1 next_115_arg_1 = var_114; [L293] SORT_1 var_116_arg_0 = state_37; [L294] SORT_1 var_116_arg_1 = input_108; [L295] SORT_1 var_116 = var_116_arg_0 | var_116_arg_1; [L296] SORT_1 var_117_arg_0 = var_116; [L297] SORT_1 var_117_arg_1 = ~input_84; [L298] var_117_arg_1 = var_117_arg_1 & mask_SORT_1 [L299] SORT_1 var_117 = var_117_arg_0 & var_117_arg_1; [L300] SORT_1 next_118_arg_1 = var_117; [L301] SORT_1 var_120_arg_0 = ~state_39; [L302] var_120_arg_0 = var_120_arg_0 & mask_SORT_1 [L303] SORT_1 var_120_arg_1 = input_119; [L304] SORT_1 var_120 = var_120_arg_0 | var_120_arg_1; [L305] SORT_1 var_122_arg_0 = var_120; [L306] SORT_1 var_122_arg_1 = input_121; [L307] SORT_1 var_122 = var_122_arg_0 | var_122_arg_1; [L308] SORT_1 var_123_arg_0 = var_122; [L309] SORT_1 var_123_arg_1 = ~input_81; [L310] var_123_arg_1 = var_123_arg_1 & mask_SORT_1 [L311] SORT_1 var_123 = var_123_arg_0 & var_123_arg_1; [L312] SORT_1 next_124_arg_1 = ~var_123; [L313] next_124_arg_1 = next_124_arg_1 & mask_SORT_1 [L314] SORT_1 var_126_arg_0 = state_41; [L315] SORT_1 var_126_arg_1 = ~input_125; [L316] var_126_arg_1 = var_126_arg_1 & mask_SORT_1 [L317] SORT_1 var_126 = var_126_arg_0 & var_126_arg_1; [L318] SORT_1 var_128_arg_0 = var_126; [L319] SORT_1 var_128_arg_1 = ~input_127; [L320] var_128_arg_1 = var_128_arg_1 & mask_SORT_1 [L321] SORT_1 var_128 = var_128_arg_0 & var_128_arg_1; [L322] SORT_1 var_129_arg_0 = var_128; [L323] SORT_1 var_129_arg_1 = input_81; [L324] SORT_1 var_129 = var_129_arg_0 | var_129_arg_1; [L325] SORT_1 next_130_arg_1 = var_129; [L326] SORT_1 var_131_arg_0 = state_43; [L327] SORT_1 var_131_arg_1 = input_125; [L328] SORT_1 var_131 = var_131_arg_0 | var_131_arg_1; [L329] SORT_1 var_132_arg_0 = var_131; [L330] SORT_1 var_132_arg_1 = ~input_119; [L331] var_132_arg_1 = var_132_arg_1 & mask_SORT_1 [L332] SORT_1 var_132 = var_132_arg_0 & var_132_arg_1; [L333] SORT_1 next_133_arg_1 = var_132; [L334] SORT_1 var_134_arg_0 = state_45; [L335] SORT_1 var_134_arg_1 = input_127; [L336] SORT_1 var_134 = var_134_arg_0 | var_134_arg_1; [L337] SORT_1 var_135_arg_0 = var_134; [L338] SORT_1 var_135_arg_1 = ~input_121; [L339] var_135_arg_1 = var_135_arg_1 & mask_SORT_1 [L340] SORT_1 var_135 = var_135_arg_0 & var_135_arg_1; [L341] SORT_1 next_136_arg_1 = var_135; [L342] SORT_1 var_137_arg_0 = ~state_47; [L343] var_137_arg_0 = var_137_arg_0 & mask_SORT_1 [L344] SORT_1 var_137_arg_1 = input_60; [L345] SORT_1 var_137 = var_137_arg_0 | var_137_arg_1; [L346] SORT_1 var_138_arg_0 = var_137; [L347] SORT_1 var_138_arg_1 = ~input_86; [L348] var_138_arg_1 = var_138_arg_1 & mask_SORT_1 [L349] SORT_1 var_138 = var_138_arg_0 & var_138_arg_1; [L350] SORT_1 var_139_arg_0 = var_138; [L351] SORT_1 var_139_arg_1 = ~input_84; [L352] var_139_arg_1 = var_139_arg_1 & mask_SORT_1 [L353] SORT_1 var_139 = var_139_arg_0 & var_139_arg_1; [L354] SORT_1 next_140_arg_1 = ~var_139; [L355] next_140_arg_1 = next_140_arg_1 & mask_SORT_1 [L356] SORT_1 var_141_arg_0 = state_49; [L357] SORT_1 var_141_arg_1 = ~input_60; [L358] var_141_arg_1 = var_141_arg_1 & mask_SORT_1 [L359] SORT_1 var_141 = var_141_arg_0 & var_141_arg_1; [L360] SORT_1 var_142_arg_0 = var_141; [L361] SORT_1 var_142_arg_1 = input_86; [L362] SORT_1 var_142 = var_142_arg_0 | var_142_arg_1; [L363] SORT_1 var_143_arg_0 = var_142; [L364] SORT_1 var_143_arg_1 = input_84; [L365] SORT_1 var_143 = var_143_arg_0 | var_143_arg_1; [L366] SORT_1 next_144_arg_1 = var_143; [L367] SORT_1 var_145_arg_0 = ~state_51; [L368] var_145_arg_0 = var_145_arg_0 & mask_SORT_1 [L369] SORT_1 var_145_arg_1 = ~input_63; [L370] var_145_arg_1 = var_145_arg_1 & mask_SORT_1 [L371] SORT_1 var_145 = var_145_arg_0 & var_145_arg_1; [L372] SORT_1 var_146_arg_0 = var_145; [L373] SORT_1 var_146_arg_1 = input_81; [L374] SORT_1 var_146 = var_146_arg_0 | var_146_arg_1; [L375] SORT_1 next_147_arg_1 = ~var_146; [L376] next_147_arg_1 = next_147_arg_1 & mask_SORT_1 [L377] SORT_1 var_148_arg_0 = state_53; [L378] SORT_1 var_148_arg_1 = input_63; [L379] SORT_1 var_148 = var_148_arg_0 | var_148_arg_1; [L380] SORT_1 var_149_arg_0 = var_148; [L381] SORT_1 var_149_arg_1 = ~input_81; [L382] var_149_arg_1 = var_149_arg_1 & mask_SORT_1 [L383] SORT_1 var_149 = var_149_arg_0 & var_149_arg_1; [L384] SORT_1 next_150_arg_1 = var_149; [L385] SORT_4 var_152_arg_0 = var_151; [L386] SORT_4 var_152_arg_1 = var_68; [L387] SORT_1 var_152 = var_152_arg_0 <= var_152_arg_1; [L388] SORT_1 var_153_arg_0 = state_23; [L389] SORT_1 var_153_arg_1 = ~var_152; [L390] var_153_arg_1 = var_153_arg_1 & mask_SORT_1 [L391] SORT_1 var_153 = var_153_arg_0 & var_153_arg_1; [L392] SORT_1 var_154_arg_0 = ~input_65; [L393] var_154_arg_0 = var_154_arg_0 & mask_SORT_1 [L394] SORT_1 var_154_arg_1 = var_153; [L395] SORT_1 var_154 = var_154_arg_0 | var_154_arg_1; [L396] SORT_4 var_155_arg_0 = var_151; [L397] SORT_4 var_155_arg_1 = var_76; [L398] SORT_1 var_155 = var_155_arg_0 <= var_155_arg_1; [L399] SORT_1 var_156_arg_0 = state_29; [L400] SORT_1 var_156_arg_1 = ~var_155; [L401] var_156_arg_1 = var_156_arg_1 & mask_SORT_1 [L402] SORT_1 var_156 = var_156_arg_0 & var_156_arg_1; [L403] SORT_1 var_157_arg_0 = ~input_75; [L404] var_157_arg_0 = var_157_arg_0 & mask_SORT_1 [L405] SORT_1 var_157_arg_1 = var_156; [L406] SORT_1 var_157 = var_157_arg_0 | var_157_arg_1; [L407] SORT_1 var_158_arg_0 = var_154; [L408] SORT_1 var_158_arg_1 = var_157; [L409] SORT_1 var_158 = var_158_arg_0 & var_158_arg_1; [L410] SORT_1 var_159_arg_0 = ~state_33; [L411] var_159_arg_0 = var_159_arg_0 & mask_SORT_1 [L412] SORT_1 var_159_arg_1 = ~input_106; [L413] var_159_arg_1 = var_159_arg_1 & mask_SORT_1 [L414] SORT_1 var_159 = var_159_arg_0 | var_159_arg_1; [L415] SORT_1 var_160_arg_0 = var_158; [L416] SORT_1 var_160_arg_1 = var_159; [L417] SORT_1 var_160 = var_160_arg_0 & var_160_arg_1; [L418] SORT_1 var_161_arg_0 = ~state_33; [L419] var_161_arg_0 = var_161_arg_0 & mask_SORT_1 [L420] SORT_1 var_161_arg_1 = ~input_108; [L421] var_161_arg_1 = var_161_arg_1 & mask_SORT_1 [L422] SORT_1 var_161 = var_161_arg_0 | var_161_arg_1; [L423] SORT_1 var_162_arg_0 = var_160; [L424] SORT_1 var_162_arg_1 = var_161; [L425] SORT_1 var_162 = var_162_arg_0 & var_162_arg_1; [L426] SORT_2 var_163_arg_0 = var_64; [L427] SORT_2 var_163_arg_1 = state_14; [L428] SORT_1 var_163 = var_163_arg_0 == var_163_arg_1; [L429] SORT_1 var_164_arg_0 = state_41; [L430] SORT_1 var_164_arg_1 = var_163; [L431] SORT_1 var_164 = var_164_arg_0 & var_164_arg_1; [L432] SORT_1 var_165_arg_0 = ~input_125; [L433] var_165_arg_0 = var_165_arg_0 & mask_SORT_1 [L434] SORT_1 var_165_arg_1 = var_164; [L435] SORT_1 var_165 = var_165_arg_0 | var_165_arg_1; [L436] SORT_1 var_166_arg_0 = var_162; [L437] SORT_1 var_166_arg_1 = var_165; [L438] SORT_1 var_166 = var_166_arg_0 & var_166_arg_1; [L439] SORT_2 var_167_arg_0 = var_85; [L440] SORT_2 var_167_arg_1 = state_14; [L441] SORT_1 var_167 = var_167_arg_0 == var_167_arg_1; [L442] SORT_1 var_168_arg_0 = state_41; [L443] SORT_1 var_168_arg_1 = var_167; [L444] SORT_1 var_168 = var_168_arg_0 & var_168_arg_1; [L445] SORT_1 var_169_arg_0 = ~input_127; [L446] var_169_arg_0 = var_169_arg_0 & mask_SORT_1 [L447] SORT_1 var_169_arg_1 = var_168; [L448] SORT_1 var_169 = var_169_arg_0 | var_169_arg_1; [L449] SORT_1 var_170_arg_0 = var_166; [L450] SORT_1 var_170_arg_1 = var_169; [L451] SORT_1 var_170 = var_170_arg_0 & var_170_arg_1; [L452] SORT_1 var_171_arg_0 = state_43; [L453] SORT_1 var_171_arg_1 = ~input_119; [L454] var_171_arg_1 = var_171_arg_1 & mask_SORT_1 [L455] SORT_1 var_171 = var_171_arg_0 | var_171_arg_1; [L456] SORT_1 var_172_arg_0 = var_170; [L457] SORT_1 var_172_arg_1 = var_171; [L458] SORT_1 var_172 = var_172_arg_0 & var_172_arg_1; [L459] SORT_1 var_173_arg_0 = state_45; [L460] SORT_1 var_173_arg_1 = ~input_121; [L461] var_173_arg_1 = var_173_arg_1 & mask_SORT_1 [L462] SORT_1 var_173 = var_173_arg_0 | var_173_arg_1; [L463] SORT_1 var_174_arg_0 = var_172; [L464] SORT_1 var_174_arg_1 = var_173; [L465] SORT_1 var_174 = var_174_arg_0 & var_174_arg_1; [L466] SORT_1 var_175_arg_0 = ~state_21; [L467] var_175_arg_0 = var_175_arg_0 & mask_SORT_1 [L468] SORT_1 var_175_arg_1 = state_49; [L469] SORT_1 var_175 = var_175_arg_0 & var_175_arg_1; [L470] SORT_1 var_176_arg_0 = ~input_60; [L471] var_176_arg_0 = var_176_arg_0 & mask_SORT_1 [L472] SORT_1 var_176_arg_1 = var_175; [L473] SORT_1 var_176 = var_176_arg_0 | var_176_arg_1; [L474] SORT_1 var_177_arg_0 = var_174; [L475] SORT_1 var_177_arg_1 = var_176; [L476] SORT_1 var_177 = var_177_arg_0 & var_177_arg_1; [L477] SORT_1 var_178_arg_0 = state_23; [L478] SORT_1 var_178_arg_1 = ~state_51; [L479] var_178_arg_1 = var_178_arg_1 & mask_SORT_1 [L480] SORT_1 var_178 = var_178_arg_0 & var_178_arg_1; [L481] SORT_1 var_179_arg_0 = ~input_63; [L482] var_179_arg_0 = var_179_arg_0 & mask_SORT_1 [L483] SORT_1 var_179_arg_1 = var_178; [L484] SORT_1 var_179 = var_179_arg_0 | var_179_arg_1; [L485] SORT_1 var_180_arg_0 = var_177; [L486] SORT_1 var_180_arg_1 = var_179; [L487] SORT_1 var_180 = var_180_arg_0 & var_180_arg_1; [L488] SORT_1 var_181_arg_0 = state_35; [L489] SORT_1 var_181_arg_1 = ~state_47; [L490] var_181_arg_1 = var_181_arg_1 & mask_SORT_1 [L491] SORT_1 var_181 = var_181_arg_0 & var_181_arg_1; [L492] SORT_1 var_182_arg_0 = ~input_86; [L493] var_182_arg_0 = var_182_arg_0 & mask_SORT_1 [L494] SORT_1 var_182_arg_1 = var_181; [L495] SORT_1 var_182 = var_182_arg_0 | var_182_arg_1; [L496] SORT_1 var_183_arg_0 = var_180; [L497] SORT_1 var_183_arg_1 = var_182; [L498] SORT_1 var_183 = var_183_arg_0 & var_183_arg_1; [L499] SORT_1 var_184_arg_0 = state_37; [L500] SORT_1 var_184_arg_1 = ~state_47; [L501] var_184_arg_1 = var_184_arg_1 & mask_SORT_1 [L502] SORT_1 var_184 = var_184_arg_0 & var_184_arg_1; [L503] SORT_1 var_185_arg_0 = ~input_84; [L504] var_185_arg_0 = var_185_arg_0 & mask_SORT_1 [L505] SORT_1 var_185_arg_1 = var_184; [L506] SORT_1 var_185 = var_185_arg_0 | var_185_arg_1; [L507] SORT_1 var_186_arg_0 = var_183; [L508] SORT_1 var_186_arg_1 = var_185; [L509] SORT_1 var_186 = var_186_arg_0 & var_186_arg_1; [L510] SORT_1 var_187_arg_0 = ~state_39; [L511] var_187_arg_0 = var_187_arg_0 & mask_SORT_1 [L512] SORT_1 var_187_arg_1 = state_53; [L513] SORT_1 var_187 = var_187_arg_0 & var_187_arg_1; [L514] SORT_1 var_188_arg_0 = ~input_81; [L515] var_188_arg_0 = var_188_arg_0 & mask_SORT_1 [L516] SORT_1 var_188_arg_1 = var_187; [L517] SORT_1 var_188 = var_188_arg_0 | var_188_arg_1; [L518] SORT_1 var_189_arg_0 = var_186; [L519] SORT_1 var_189_arg_1 = var_188; [L520] SORT_1 var_189 = var_189_arg_0 & var_189_arg_1; [L521] SORT_1 var_190_arg_0 = input_65; [L522] SORT_1 var_190_arg_1 = input_75; [L523] SORT_1 var_190 = var_190_arg_0 | var_190_arg_1; [L524] SORT_1 var_191_arg_0 = input_106; [L525] SORT_1 var_191_arg_1 = var_190; [L526] SORT_1 var_191 = var_191_arg_0 | var_191_arg_1; [L527] SORT_1 var_192_arg_0 = input_108; [L528] SORT_1 var_192_arg_1 = var_191; [L529] SORT_1 var_192 = var_192_arg_0 | var_192_arg_1; [L530] SORT_1 var_193_arg_0 = input_125; [L531] SORT_1 var_193_arg_1 = var_192; [L532] SORT_1 var_193 = var_193_arg_0 | var_193_arg_1; [L533] SORT_1 var_194_arg_0 = input_127; [L534] SORT_1 var_194_arg_1 = var_193; [L535] SORT_1 var_194 = var_194_arg_0 | var_194_arg_1; [L536] SORT_1 var_195_arg_0 = input_119; [L537] SORT_1 var_195_arg_1 = var_194; [L538] SORT_1 var_195 = var_195_arg_0 | var_195_arg_1; [L539] SORT_1 var_196_arg_0 = input_121; [L540] SORT_1 var_196_arg_1 = var_195; [L541] SORT_1 var_196 = var_196_arg_0 | var_196_arg_1; [L542] SORT_1 var_197_arg_0 = input_60; [L543] SORT_1 var_197_arg_1 = var_196; [L544] SORT_1 var_197 = var_197_arg_0 | var_197_arg_1; [L545] SORT_1 var_198_arg_0 = input_63; [L546] SORT_1 var_198_arg_1 = var_197; [L547] SORT_1 var_198 = var_198_arg_0 | var_198_arg_1; [L548] SORT_1 var_199_arg_0 = input_86; [L549] SORT_1 var_199_arg_1 = var_198; [L550] SORT_1 var_199 = var_199_arg_0 | var_199_arg_1; [L551] SORT_1 var_200_arg_0 = input_84; [L552] SORT_1 var_200_arg_1 = var_199; [L553] SORT_1 var_200 = var_200_arg_0 | var_200_arg_1; [L554] SORT_1 var_201_arg_0 = input_81; [L555] SORT_1 var_201_arg_1 = var_200; [L556] SORT_1 var_201 = var_201_arg_0 | var_201_arg_1; [L557] SORT_1 var_202_arg_0 = var_189; [L558] SORT_1 var_202_arg_1 = var_201; [L559] SORT_1 var_202 = var_202_arg_0 & var_202_arg_1; [L560] SORT_1 var_203_arg_0 = input_65; [L561] SORT_1 var_203_arg_1 = input_75; [L562] SORT_1 var_203 = var_203_arg_0 & var_203_arg_1; [L563] SORT_1 var_204_arg_0 = input_106; [L564] SORT_1 var_204_arg_1 = var_190; [L565] SORT_1 var_204 = var_204_arg_0 & var_204_arg_1; [L566] SORT_1 var_205_arg_0 = var_203; [L567] SORT_1 var_205_arg_1 = var_204; [L568] SORT_1 var_205 = var_205_arg_0 | var_205_arg_1; [L569] SORT_1 var_206_arg_0 = input_108; [L570] SORT_1 var_206_arg_1 = var_191; [L571] SORT_1 var_206 = var_206_arg_0 & var_206_arg_1; [L572] SORT_1 var_207_arg_0 = var_205; [L573] SORT_1 var_207_arg_1 = var_206; [L574] SORT_1 var_207 = var_207_arg_0 | var_207_arg_1; [L575] SORT_1 var_208_arg_0 = input_125; [L576] SORT_1 var_208_arg_1 = var_192; [L577] SORT_1 var_208 = var_208_arg_0 & var_208_arg_1; [L578] SORT_1 var_209_arg_0 = var_207; [L579] SORT_1 var_209_arg_1 = var_208; [L580] SORT_1 var_209 = var_209_arg_0 | var_209_arg_1; [L581] SORT_1 var_210_arg_0 = input_127; [L582] SORT_1 var_210_arg_1 = var_193; [L583] SORT_1 var_210 = var_210_arg_0 & var_210_arg_1; [L584] SORT_1 var_211_arg_0 = var_209; [L585] SORT_1 var_211_arg_1 = var_210; [L586] SORT_1 var_211 = var_211_arg_0 | var_211_arg_1; [L587] SORT_1 var_212_arg_0 = input_119; [L588] SORT_1 var_212_arg_1 = var_194; [L589] SORT_1 var_212 = var_212_arg_0 & var_212_arg_1; [L590] SORT_1 var_213_arg_0 = var_211; [L591] SORT_1 var_213_arg_1 = var_212; [L592] SORT_1 var_213 = var_213_arg_0 | var_213_arg_1; [L593] SORT_1 var_214_arg_0 = input_121; [L594] SORT_1 var_214_arg_1 = var_195; [L595] SORT_1 var_214 = var_214_arg_0 & var_214_arg_1; [L596] SORT_1 var_215_arg_0 = var_213; [L597] SORT_1 var_215_arg_1 = var_214; [L598] SORT_1 var_215 = var_215_arg_0 | var_215_arg_1; [L599] SORT_1 var_216_arg_0 = input_60; [L600] SORT_1 var_216_arg_1 = var_196; [L601] SORT_1 var_216 = var_216_arg_0 & var_216_arg_1; [L602] SORT_1 var_217_arg_0 = var_215; [L603] SORT_1 var_217_arg_1 = var_216; [L604] SORT_1 var_217 = var_217_arg_0 | var_217_arg_1; [L605] SORT_1 var_218_arg_0 = input_63; [L606] SORT_1 var_218_arg_1 = var_197; [L607] SORT_1 var_218 = var_218_arg_0 & var_218_arg_1; [L608] SORT_1 var_219_arg_0 = var_217; [L609] SORT_1 var_219_arg_1 = var_218; [L610] SORT_1 var_219 = var_219_arg_0 | var_219_arg_1; [L611] SORT_1 var_220_arg_0 = input_86; [L612] SORT_1 var_220_arg_1 = var_198; [L613] SORT_1 var_220 = var_220_arg_0 & var_220_arg_1; [L614] SORT_1 var_221_arg_0 = var_219; [L615] SORT_1 var_221_arg_1 = var_220; [L616] SORT_1 var_221 = var_221_arg_0 | var_221_arg_1; [L617] SORT_1 var_222_arg_0 = input_84; [L618] SORT_1 var_222_arg_1 = var_199; [L619] SORT_1 var_222 = var_222_arg_0 & var_222_arg_1; [L620] SORT_1 var_223_arg_0 = var_221; [L621] SORT_1 var_223_arg_1 = var_222; [L622] SORT_1 var_223 = var_223_arg_0 | var_223_arg_1; [L623] SORT_1 var_224_arg_0 = input_81; [L624] SORT_1 var_224_arg_1 = var_200; [L625] SORT_1 var_224 = var_224_arg_0 & var_224_arg_1; [L626] SORT_1 var_225_arg_0 = var_223; [L627] SORT_1 var_225_arg_1 = var_224; [L628] SORT_1 var_225 = var_225_arg_0 | var_225_arg_1; [L629] SORT_1 var_226_arg_0 = var_202; [L630] SORT_1 var_226_arg_1 = ~var_225; [L631] var_226_arg_1 = var_226_arg_1 & mask_SORT_1 [L632] SORT_1 var_226 = var_226_arg_0 & var_226_arg_1; [L633] SORT_1 var_227_arg_0 = ~state_21; [L634] var_227_arg_0 = var_227_arg_0 & mask_SORT_1 [L635] SORT_1 var_227_arg_1 = state_23; [L636] SORT_1 var_227 = var_227_arg_0 & var_227_arg_1; [L637] SORT_1 var_228_arg_0 = ~state_21; [L638] var_228_arg_0 = var_228_arg_0 & mask_SORT_1 [L639] SORT_1 var_228_arg_1 = state_23; [L640] SORT_1 var_228 = var_228_arg_0 | var_228_arg_1; [L641] SORT_1 var_229_arg_0 = state_25; [L642] SORT_1 var_229_arg_1 = var_228; [L643] SORT_1 var_229 = var_229_arg_0 & var_229_arg_1; [L644] SORT_1 var_230_arg_0 = var_227; [L645] SORT_1 var_230_arg_1 = var_229; [L646] SORT_1 var_230 = var_230_arg_0 | var_230_arg_1; [L647] SORT_1 var_231_arg_0 = state_25; [L648] SORT_1 var_231_arg_1 = var_228; [L649] SORT_1 var_231 = var_231_arg_0 | var_231_arg_1; [L650] SORT_1 var_232_arg_0 = ~var_230; [L651] var_232_arg_0 = var_232_arg_0 & mask_SORT_1 [L652] SORT_1 var_232_arg_1 = var_231; [L653] SORT_1 var_232 = var_232_arg_0 & var_232_arg_1; [L654] SORT_1 var_233_arg_0 = ~state_27; [L655] var_233_arg_0 = var_233_arg_0 & mask_SORT_1 [L656] SORT_1 var_233_arg_1 = state_29; [L657] SORT_1 var_233 = var_233_arg_0 & var_233_arg_1; [L658] SORT_1 var_234_arg_0 = ~state_27; [L659] var_234_arg_0 = var_234_arg_0 & mask_SORT_1 [L660] SORT_1 var_234_arg_1 = state_29; [L661] SORT_1 var_234 = var_234_arg_0 | var_234_arg_1; [L662] SORT_1 var_235_arg_0 = state_31; [L663] SORT_1 var_235_arg_1 = var_234; [L664] SORT_1 var_235 = var_235_arg_0 & var_235_arg_1; [L665] SORT_1 var_236_arg_0 = var_233; [L666] SORT_1 var_236_arg_1 = var_235; [L667] SORT_1 var_236 = var_236_arg_0 | var_236_arg_1; [L668] SORT_1 var_237_arg_0 = var_232; [L669] SORT_1 var_237_arg_1 = ~var_236; [L670] var_237_arg_1 = var_237_arg_1 & mask_SORT_1 [L671] SORT_1 var_237 = var_237_arg_0 & var_237_arg_1; [L672] SORT_1 var_238_arg_0 = state_31; [L673] SORT_1 var_238_arg_1 = var_234; [L674] SORT_1 var_238 = var_238_arg_0 | var_238_arg_1; [L675] SORT_1 var_239_arg_0 = var_237; [L676] SORT_1 var_239_arg_1 = var_238; [L677] SORT_1 var_239 = var_239_arg_0 & var_239_arg_1; [L678] SORT_1 var_240_arg_0 = ~state_33; [L679] var_240_arg_0 = var_240_arg_0 & mask_SORT_1 [L680] SORT_1 var_240_arg_1 = state_35; [L681] SORT_1 var_240 = var_240_arg_0 & var_240_arg_1; [L682] SORT_1 var_241_arg_0 = ~state_33; [L683] var_241_arg_0 = var_241_arg_0 & mask_SORT_1 [L684] SORT_1 var_241_arg_1 = state_35; [L685] SORT_1 var_241 = var_241_arg_0 | var_241_arg_1; [L686] SORT_1 var_242_arg_0 = state_37; [L687] SORT_1 var_242_arg_1 = var_241; [L688] SORT_1 var_242 = var_242_arg_0 & var_242_arg_1; [L689] SORT_1 var_243_arg_0 = var_240; [L690] SORT_1 var_243_arg_1 = var_242; [L691] SORT_1 var_243 = var_243_arg_0 | var_243_arg_1; [L692] SORT_1 var_244_arg_0 = var_239; [L693] SORT_1 var_244_arg_1 = ~var_243; [L694] var_244_arg_1 = var_244_arg_1 & mask_SORT_1 [L695] SORT_1 var_244 = var_244_arg_0 & var_244_arg_1; [L696] SORT_1 var_245_arg_0 = state_37; [L697] SORT_1 var_245_arg_1 = var_241; [L698] SORT_1 var_245 = var_245_arg_0 | var_245_arg_1; [L699] SORT_1 var_246_arg_0 = var_244; [L700] SORT_1 var_246_arg_1 = var_245; [L701] SORT_1 var_246 = var_246_arg_0 & var_246_arg_1; [L702] SORT_1 var_247_arg_0 = ~state_39; [L703] var_247_arg_0 = var_247_arg_0 & mask_SORT_1 [L704] SORT_1 var_247_arg_1 = state_41; [L705] SORT_1 var_247 = var_247_arg_0 & var_247_arg_1; [L706] SORT_1 var_248_arg_0 = ~state_39; [L707] var_248_arg_0 = var_248_arg_0 & mask_SORT_1 [L708] SORT_1 var_248_arg_1 = state_41; [L709] SORT_1 var_248 = var_248_arg_0 | var_248_arg_1; [L710] SORT_1 var_249_arg_0 = state_43; [L711] SORT_1 var_249_arg_1 = var_248; [L712] SORT_1 var_249 = var_249_arg_0 & var_249_arg_1; [L713] SORT_1 var_250_arg_0 = var_247; [L714] SORT_1 var_250_arg_1 = var_249; [L715] SORT_1 var_250 = var_250_arg_0 | var_250_arg_1; [L716] SORT_1 var_251_arg_0 = state_43; [L717] SORT_1 var_251_arg_1 = var_248; [L718] SORT_1 var_251 = var_251_arg_0 | var_251_arg_1; [L719] SORT_1 var_252_arg_0 = state_45; [L720] SORT_1 var_252_arg_1 = var_251; [L721] SORT_1 var_252 = var_252_arg_0 & var_252_arg_1; [L722] SORT_1 var_253_arg_0 = var_250; [L723] SORT_1 var_253_arg_1 = var_252; [L724] SORT_1 var_253 = var_253_arg_0 | var_253_arg_1; [L725] SORT_1 var_254_arg_0 = var_246; [L726] SORT_1 var_254_arg_1 = ~var_253; [L727] var_254_arg_1 = var_254_arg_1 & mask_SORT_1 [L728] SORT_1 var_254 = var_254_arg_0 & var_254_arg_1; [L729] SORT_1 var_255_arg_0 = state_45; [L730] SORT_1 var_255_arg_1 = var_251; [L731] SORT_1 var_255 = var_255_arg_0 | var_255_arg_1; [L732] SORT_1 var_256_arg_0 = var_254; [L733] SORT_1 var_256_arg_1 = var_255; [L734] SORT_1 var_256 = var_256_arg_0 & var_256_arg_1; [L735] SORT_1 var_257_arg_0 = ~state_47; [L736] var_257_arg_0 = var_257_arg_0 & mask_SORT_1 [L737] SORT_1 var_257_arg_1 = state_49; [L738] SORT_1 var_257 = var_257_arg_0 & var_257_arg_1; [L739] SORT_1 var_258_arg_0 = var_256; [L740] SORT_1 var_258_arg_1 = ~var_257; [L741] var_258_arg_1 = var_258_arg_1 & mask_SORT_1 [L742] SORT_1 var_258 = var_258_arg_0 & var_258_arg_1; [L743] SORT_1 var_259_arg_0 = ~state_47; [L744] var_259_arg_0 = var_259_arg_0 & mask_SORT_1 [L745] SORT_1 var_259_arg_1 = state_49; [L746] SORT_1 var_259 = var_259_arg_0 | var_259_arg_1; [L747] SORT_1 var_260_arg_0 = var_258; [L748] SORT_1 var_260_arg_1 = var_259; [L749] SORT_1 var_260 = var_260_arg_0 & var_260_arg_1; [L750] SORT_1 var_261_arg_0 = ~state_51; [L751] var_261_arg_0 = var_261_arg_0 & mask_SORT_1 [L752] SORT_1 var_261_arg_1 = state_53; [L753] SORT_1 var_261 = var_261_arg_0 & var_261_arg_1; [L754] SORT_1 var_262_arg_0 = var_260; [L755] SORT_1 var_262_arg_1 = ~var_261; [L756] var_262_arg_1 = var_262_arg_1 & mask_SORT_1 [L757] SORT_1 var_262 = var_262_arg_0 & var_262_arg_1; [L758] SORT_1 var_263_arg_0 = ~state_51; [L759] var_263_arg_0 = var_263_arg_0 & mask_SORT_1 [L760] SORT_1 var_263_arg_1 = state_53; [L761] SORT_1 var_263 = var_263_arg_0 | var_263_arg_1; [L762] SORT_1 var_264_arg_0 = var_262; [L763] SORT_1 var_264_arg_1 = var_263; [L764] SORT_1 var_264 = var_264_arg_0 & var_264_arg_1; [L765] SORT_1 var_265_arg_0 = var_226; [L766] SORT_1 var_265_arg_1 = var_264; [L767] SORT_1 var_265 = var_265_arg_0 & var_265_arg_1; [L768] SORT_1 var_266_arg_0 = var_94; [L769] SORT_1 var_266_arg_1 = var_98; [L770] SORT_1 var_266 = var_266_arg_0 & var_266_arg_1; [L771] SORT_1 var_267_arg_0 = var_94; [L772] SORT_1 var_267_arg_1 = var_98; [L773] SORT_1 var_267 = var_267_arg_0 | var_267_arg_1; [L774] SORT_1 var_268_arg_0 = state_25; [L775] SORT_1 var_268_arg_1 = var_267; [L776] SORT_1 var_268 = var_268_arg_0 & var_268_arg_1; [L777] SORT_1 var_269_arg_0 = var_266; [L778] SORT_1 var_269_arg_1 = var_268; [L779] SORT_1 var_269 = var_269_arg_0 | var_269_arg_1; [L780] SORT_1 var_270_arg_0 = state_25; [L781] SORT_1 var_270_arg_1 = var_267; [L782] SORT_1 var_270 = var_270_arg_0 | var_270_arg_1; [L783] SORT_1 var_271_arg_0 = ~var_269; [L784] var_271_arg_0 = var_271_arg_0 & mask_SORT_1 [L785] SORT_1 var_271_arg_1 = var_270; [L786] SORT_1 var_271 = var_271_arg_0 & var_271_arg_1; [L787] SORT_1 var_272_arg_0 = var_101; [L788] SORT_1 var_272_arg_1 = var_103; [L789] SORT_1 var_272 = var_272_arg_0 & var_272_arg_1; [L790] SORT_1 var_273_arg_0 = var_101; [L791] SORT_1 var_273_arg_1 = var_103; [L792] SORT_1 var_273 = var_273_arg_0 | var_273_arg_1; [L793] SORT_1 var_274_arg_0 = state_31; [L794] SORT_1 var_274_arg_1 = var_273; [L795] SORT_1 var_274 = var_274_arg_0 & var_274_arg_1; [L796] SORT_1 var_275_arg_0 = var_272; [L797] SORT_1 var_275_arg_1 = var_274; [L798] SORT_1 var_275 = var_275_arg_0 | var_275_arg_1; [L799] SORT_1 var_276_arg_0 = var_271; [L800] SORT_1 var_276_arg_1 = ~var_275; [L801] var_276_arg_1 = var_276_arg_1 & mask_SORT_1 [L802] SORT_1 var_276 = var_276_arg_0 & var_276_arg_1; [L803] SORT_1 var_277_arg_0 = state_31; [L804] SORT_1 var_277_arg_1 = var_273; [L805] SORT_1 var_277 = var_277_arg_0 | var_277_arg_1; [L806] SORT_1 var_278_arg_0 = var_276; [L807] SORT_1 var_278_arg_1 = var_277; [L808] SORT_1 var_278 = var_278_arg_0 & var_278_arg_1; [L809] SORT_1 var_279_arg_0 = var_114; [L810] SORT_1 var_279_arg_1 = var_111; [L811] SORT_1 var_279 = var_279_arg_0 & var_279_arg_1; [L812] SORT_1 var_280_arg_0 = var_114; [L813] SORT_1 var_280_arg_1 = var_111; [L814] SORT_1 var_280 = var_280_arg_0 | var_280_arg_1; [L815] SORT_1 var_281_arg_0 = var_117; [L816] SORT_1 var_281_arg_1 = var_280; [L817] SORT_1 var_281 = var_281_arg_0 & var_281_arg_1; [L818] SORT_1 var_282_arg_0 = var_279; [L819] SORT_1 var_282_arg_1 = var_281; [L820] SORT_1 var_282 = var_282_arg_0 | var_282_arg_1; [L821] SORT_1 var_283_arg_0 = var_278; [L822] SORT_1 var_283_arg_1 = ~var_282; [L823] var_283_arg_1 = var_283_arg_1 & mask_SORT_1 [L824] SORT_1 var_283 = var_283_arg_0 & var_283_arg_1; [L825] SORT_1 var_284_arg_0 = var_117; [L826] SORT_1 var_284_arg_1 = var_280; [L827] SORT_1 var_284 = var_284_arg_0 | var_284_arg_1; [L828] SORT_1 var_285_arg_0 = var_283; [L829] SORT_1 var_285_arg_1 = var_284; [L830] SORT_1 var_285 = var_285_arg_0 & var_285_arg_1; [L831] SORT_1 var_286_arg_0 = var_123; [L832] SORT_1 var_286_arg_1 = var_129; [L833] SORT_1 var_286 = var_286_arg_0 & var_286_arg_1; [L834] SORT_1 var_287_arg_0 = var_123; [L835] SORT_1 var_287_arg_1 = var_129; [L836] SORT_1 var_287 = var_287_arg_0 | var_287_arg_1; [L837] SORT_1 var_288_arg_0 = var_132; [L838] SORT_1 var_288_arg_1 = var_287; [L839] SORT_1 var_288 = var_288_arg_0 & var_288_arg_1; [L840] SORT_1 var_289_arg_0 = var_286; [L841] SORT_1 var_289_arg_1 = var_288; [L842] SORT_1 var_289 = var_289_arg_0 | var_289_arg_1; [L843] SORT_1 var_290_arg_0 = var_132; [L844] SORT_1 var_290_arg_1 = var_287; [L845] SORT_1 var_290 = var_290_arg_0 | var_290_arg_1; [L846] SORT_1 var_291_arg_0 = var_135; [L847] SORT_1 var_291_arg_1 = var_290; [L848] SORT_1 var_291 = var_291_arg_0 & var_291_arg_1; [L849] SORT_1 var_292_arg_0 = var_289; [L850] SORT_1 var_292_arg_1 = var_291; [L851] SORT_1 var_292 = var_292_arg_0 | var_292_arg_1; [L852] SORT_1 var_293_arg_0 = var_285; [L853] SORT_1 var_293_arg_1 = ~var_292; [L854] var_293_arg_1 = var_293_arg_1 & mask_SORT_1 [L855] SORT_1 var_293 = var_293_arg_0 & var_293_arg_1; [L856] SORT_1 var_294_arg_0 = var_135; [L857] SORT_1 var_294_arg_1 = var_290; [L858] SORT_1 var_294 = var_294_arg_0 | var_294_arg_1; [L859] SORT_1 var_295_arg_0 = var_293; [L860] SORT_1 var_295_arg_1 = var_294; [L861] SORT_1 var_295 = var_295_arg_0 & var_295_arg_1; [L862] SORT_1 var_296_arg_0 = var_139; [L863] SORT_1 var_296_arg_1 = var_143; [L864] SORT_1 var_296 = var_296_arg_0 & var_296_arg_1; [L865] SORT_1 var_297_arg_0 = var_295; [L866] SORT_1 var_297_arg_1 = ~var_296; [L867] var_297_arg_1 = var_297_arg_1 & mask_SORT_1 [L868] SORT_1 var_297 = var_297_arg_0 & var_297_arg_1; [L869] SORT_1 var_298_arg_0 = var_139; [L870] SORT_1 var_298_arg_1 = var_143; [L871] SORT_1 var_298 = var_298_arg_0 | var_298_arg_1; [L872] SORT_1 var_299_arg_0 = var_297; [L873] SORT_1 var_299_arg_1 = var_298; [L874] SORT_1 var_299 = var_299_arg_0 & var_299_arg_1; [L875] SORT_1 var_300_arg_0 = var_146; [L876] SORT_1 var_300_arg_1 = var_149; [L877] SORT_1 var_300 = var_300_arg_0 & var_300_arg_1; [L878] SORT_1 var_301_arg_0 = var_299; [L879] SORT_1 var_301_arg_1 = ~var_300; [L880] var_301_arg_1 = var_301_arg_1 & mask_SORT_1 [L881] SORT_1 var_301 = var_301_arg_0 & var_301_arg_1; [L882] SORT_1 var_302_arg_0 = var_146; [L883] SORT_1 var_302_arg_1 = var_149; [L884] SORT_1 var_302 = var_302_arg_0 | var_302_arg_1; [L885] SORT_1 var_303_arg_0 = var_301; [L886] SORT_1 var_303_arg_1 = var_302; [L887] SORT_1 var_303 = var_303_arg_0 & var_303_arg_1; [L888] SORT_1 var_304_arg_0 = var_265; [L889] SORT_1 var_304_arg_1 = var_303; [L890] SORT_1 var_304 = var_304_arg_0 & var_304_arg_1; [L891] SORT_1 var_305_arg_0 = var_304; [L892] SORT_1 var_305_arg_1 = ~state_55; [L893] var_305_arg_1 = var_305_arg_1 & mask_SORT_1 [L894] SORT_1 var_305 = var_305_arg_0 & var_305_arg_1; [L895] SORT_1 next_306_arg_1 = ~var_305; [L896] next_306_arg_1 = next_306_arg_1 & mask_SORT_1 [L898] state_6 = next_62_arg_1 [L899] state_8 = next_73_arg_1 [L900] state_10 = next_74_arg_1 [L901] state_12 = next_80_arg_1 [L902] state_14 = next_83_arg_1 [L903] state_16 = next_89_arg_1 [L904] state_18 = next_91_arg_1 [L905] state_21 = next_95_arg_1 [L906] state_23 = next_99_arg_1 [L907] state_25 = next_100_arg_1 [L908] state_27 = next_102_arg_1 [L909] state_29 = next_104_arg_1 [L910] state_31 = next_105_arg_1 [L911] state_33 = next_112_arg_1 [L912] state_35 = next_115_arg_1 [L913] state_37 = next_118_arg_1 [L914] state_39 = next_124_arg_1 [L915] state_41 = next_130_arg_1 [L916] state_43 = next_133_arg_1 [L917] state_45 = next_136_arg_1 [L918] state_47 = next_140_arg_1 [L919] state_49 = next_144_arg_1 [L920] state_51 = next_147_arg_1 [L921] state_53 = next_150_arg_1 [L922] state_55 = next_306_arg_1 VAL [bad_59_arg_0=0, init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_32_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_54_arg_1=0, init_56_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_106=253, input_108=11, input_119=255, input_121=27, input_125=49, input_127=254, input_60=1, input_63=0, input_65=1, input_75=0, input_81=0, input_84=0, input_86=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, next_100_arg_1=0, next_102_arg_1=0, next_104_arg_1=0, next_105_arg_1=0, next_112_arg_1=0, next_115_arg_1=0, next_118_arg_1=1, next_124_arg_1=0, next_130_arg_1=0, next_133_arg_1=0, next_136_arg_1=1, next_140_arg_1=0, next_144_arg_1=0, next_147_arg_1=0, next_150_arg_1=0, next_306_arg_1=0, next_62_arg_1=0, next_73_arg_1=1, next_74_arg_1=0, next_80_arg_1=0, next_83_arg_1=0, next_89_arg_1=0, next_91_arg_1=0, next_95_arg_1=0, next_99_arg_1=1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_21=0, state_23=1, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=1, state_39=0, state_41=0, state_43=0, state_45=1, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_6=0, state_8=1, var_101=1, var_101_arg_0=1, var_101_arg_1=0, var_103=0, var_103_arg_0=0, var_103_arg_1=0, var_107=0, var_107_arg_0=1, var_107_arg_1=0, var_109=0, var_109_arg_0=0, var_109_arg_1=1, var_110=0, var_110_arg_0=0, var_110_arg_1=0, var_111=0, var_111_arg_0=0, var_111_arg_1=0, var_113=2, var_113_arg_0=0, var_113_arg_1=253, var_114=0, var_114_arg_0=2, var_114_arg_1=1, var_116=1, var_116_arg_0=0, var_116_arg_1=11, var_117=1, var_117_arg_0=1, var_117_arg_1=1, var_120=0, var_120_arg_0=1, var_120_arg_1=255, var_122=37, var_122_arg_0=0, var_122_arg_1=27, var_123=1, var_123_arg_0=37, var_123_arg_1=1, var_126=0, var_126_arg_0=0, var_126_arg_1=0, var_128=0, var_128_arg_0=0, var_128_arg_1=0, var_129=0, var_129_arg_0=0, var_129_arg_1=0, var_131=0, var_131_arg_0=0, var_131_arg_1=49, var_132=0, var_132_arg_0=0, var_132_arg_1=1, var_134=251, var_134_arg_0=0, var_134_arg_1=254, var_135=1, var_135_arg_0=251, var_135_arg_1=1, var_137=1, var_137_arg_0=0, var_137_arg_1=1, var_138=1, var_138_arg_0=1, var_138_arg_1=1, var_139=1, var_139_arg_0=1, var_139_arg_1=1, var_141=0, var_141_arg_0=0, var_141_arg_1=0, var_142=0, var_142_arg_0=0, var_142_arg_1=0, var_143=0, var_143_arg_0=0, var_143_arg_1=0, var_145=1, var_145_arg_0=1, var_145_arg_1=1, var_146=1, var_146_arg_0=1, var_146_arg_1=0, var_148=0, var_148_arg_0=0, var_148_arg_1=0, var_149=0, var_149_arg_0=0, var_149_arg_1=1, var_151=3, var_152=0, var_152_arg_0=3, var_152_arg_1=0, var_153=0, var_153_arg_0=0, var_153_arg_1=1, var_154=0, var_154_arg_0=0, var_154_arg_1=0, var_155=0, var_155_arg_0=3, var_155_arg_1=0, var_156=0, var_156_arg_0=0, var_156_arg_1=1, var_157=1, var_157_arg_0=1, var_157_arg_1=0, var_158=0, var_158_arg_0=0, var_158_arg_1=1, var_159=1, var_159_arg_0=1, var_159_arg_1=0, var_160=0, var_160_arg_0=0, var_160_arg_1=1, var_161=1, var_161_arg_0=1, var_161_arg_1=1, var_162=0, var_162_arg_0=0, var_162_arg_1=1, var_163=1, var_163_arg_0=0, var_163_arg_1=0, var_164=0, var_164_arg_0=0, var_164_arg_1=1, var_165=0, var_165_arg_0=0, var_165_arg_1=0, var_166=0, var_166_arg_0=0, var_166_arg_1=0, var_167=0, var_167_arg_0=1, var_167_arg_1=0, var_168=0, var_168_arg_0=0, var_168_arg_1=0, var_169=1, var_169_arg_0=1, var_169_arg_1=0, var_170=0, var_170_arg_0=0, var_170_arg_1=1, var_171=1, var_171_arg_0=0, var_171_arg_1=1, var_172=0, var_172_arg_0=0, var_172_arg_1=1, var_173=1, var_173_arg_0=0, var_173_arg_1=1, var_174=0, var_174_arg_0=0, var_174_arg_1=1, var_175=0, var_175_arg_0=0, var_175_arg_1=0, var_176=1, var_176_arg_0=1, var_176_arg_1=0, var_177=0, var_177_arg_0=0, var_177_arg_1=1, var_178=0, var_178_arg_0=0, var_178_arg_1=0, var_179=1, var_179_arg_0=1, var_179_arg_1=0, var_180=0, var_180_arg_0=0, var_180_arg_1=1, var_181=0, var_181_arg_0=0, var_181_arg_1=0, var_182=0, var_182_arg_0=0, var_182_arg_1=0, var_183=0, var_183_arg_0=0, var_183_arg_1=0, var_184=0, var_184_arg_0=0, var_184_arg_1=0, var_185=1, var_185_arg_0=1, var_185_arg_1=0, var_186=0, var_186_arg_0=0, var_186_arg_1=1, var_187=0, var_187_arg_0=0, var_187_arg_1=0, var_188=1, var_188_arg_0=1, var_188_arg_1=0, var_189=0, var_189_arg_0=0, var_189_arg_1=1, var_190=1, var_190_arg_0=1, var_190_arg_1=0, var_191=13, var_191_arg_0=253, var_191_arg_1=1, var_192=1, var_192_arg_0=11, var_192_arg_1=13, var_193=3, var_193_arg_0=49, var_193_arg_1=1, var_194=1, var_194_arg_0=254, var_194_arg_1=3, var_195=255, var_195_arg_0=255, var_195_arg_1=1, var_196=255, var_196_arg_0=27, var_196_arg_1=255, var_197=1, var_197_arg_0=1, var_197_arg_1=255, var_198=1, var_198_arg_0=0, var_198_arg_1=1, var_199=1, var_199_arg_0=0, var_199_arg_1=1, var_20=0, var_200=1, var_200_arg_0=0, var_200_arg_1=1, var_201=1, var_201_arg_0=0, var_201_arg_1=1, var_202=0, var_202_arg_0=0, var_202_arg_1=1, var_203=0, var_203_arg_0=1, var_203_arg_1=0, var_204=1, var_204_arg_0=253, var_204_arg_1=1, var_205=1, var_205_arg_0=0, var_205_arg_1=1, var_206=252, var_206_arg_0=11, var_206_arg_1=13, var_207=7, var_207_arg_0=1, var_207_arg_1=252, var_208=1, var_208_arg_0=49, var_208_arg_1=1, var_209=1, var_209_arg_0=7, var_209_arg_1=1, var_210=1, var_210_arg_0=254, var_210_arg_1=3, var_211=1, var_211_arg_0=1, var_211_arg_1=1, var_212=1, var_212_arg_0=255, var_212_arg_1=1, var_213=1, var_213_arg_0=1, var_213_arg_1=1, var_214=9, var_214_arg_0=27, var_214_arg_1=255, var_215=2, var_215_arg_0=1, var_215_arg_1=9, var_216=1, var_216_arg_0=1, var_216_arg_1=255, var_217=6, var_217_arg_0=2, var_217_arg_1=1, var_218=0, var_218_arg_0=0, var_218_arg_1=1, var_219=1, var_219_arg_0=6, var_219_arg_1=0, var_220=0, var_220_arg_0=0, var_220_arg_1=1, var_221=1, var_221_arg_0=1, var_221_arg_1=0, var_222=0, var_222_arg_0=0, var_222_arg_1=1, var_223=1, var_223_arg_0=1, var_223_arg_1=0, var_224=0, var_224_arg_0=0, var_224_arg_1=1, var_225=1, var_225_arg_0=1, var_225_arg_1=0, var_226=0, var_226_arg_0=0, var_226_arg_1=1, var_227=0, var_227_arg_0=0, var_227_arg_1=0, var_228=0, var_228_arg_0=0, var_228_arg_1=0, var_229=0, var_229_arg_0=0, var_229_arg_1=0, var_230=0, var_230_arg_0=0, var_230_arg_1=0, var_231=0, var_231_arg_0=0, var_231_arg_1=0, var_232=0, var_232_arg_0=0, var_232_arg_1=0, var_233=0, var_233_arg_0=1, var_233_arg_1=0, var_234=1, var_234_arg_0=1, var_234_arg_1=0, var_235=0, var_235_arg_0=0, var_235_arg_1=1, var_236=0, var_236_arg_0=0, var_236_arg_1=0, var_237=0, var_237_arg_0=0, var_237_arg_1=0, var_238=1, var_238_arg_0=0, var_238_arg_1=1, var_239=0, var_239_arg_0=0, var_239_arg_1=1, var_240=0, var_240_arg_0=0, var_240_arg_1=0, var_241=1, var_241_arg_0=1, var_241_arg_1=0, var_242=0, var_242_arg_0=0, var_242_arg_1=1, var_243=0, var_243_arg_0=0, var_243_arg_1=0, var_244=0, var_244_arg_0=0, var_244_arg_1=1, var_245=1, var_245_arg_0=0, var_245_arg_1=1, var_246=0, var_246_arg_0=0, var_246_arg_1=1, var_247=0, var_247_arg_0=0, var_247_arg_1=0, var_248=0, var_248_arg_0=0, var_248_arg_1=0, var_249=0, var_249_arg_0=0, var_249_arg_1=0, var_250=0, var_250_arg_0=0, var_250_arg_1=0, var_251=0, var_251_arg_0=0, var_251_arg_1=0, var_252=0, var_252_arg_0=0, var_252_arg_1=0, var_253=0, var_253_arg_0=0, var_253_arg_1=0, var_254=0, var_254_arg_0=0, var_254_arg_1=0, var_255=0, var_255_arg_0=0, var_255_arg_1=0, var_256=0, var_256_arg_0=0, var_256_arg_1=0, var_257=0, var_257_arg_0=0, var_257_arg_1=0, var_258=0, var_258_arg_0=0, var_258_arg_1=0, var_259=0, var_259_arg_0=0, var_259_arg_1=0, var_260=0, var_260_arg_0=0, var_260_arg_1=0, var_261=0, var_261_arg_0=1, var_261_arg_1=0, var_262=0, var_262_arg_0=0, var_262_arg_1=0, var_263=0, var_263_arg_0=0, var_263_arg_1=0, var_264=0, var_264_arg_0=0, var_264_arg_1=0, var_265=0, var_265_arg_0=0, var_265_arg_1=0, var_266=0, var_266_arg_0=0, var_266_arg_1=1, var_267=1, var_267_arg_0=0, var_267_arg_1=1, var_268=0, var_268_arg_0=0, var_268_arg_1=1, var_269=0, var_269_arg_0=0, var_269_arg_1=0, var_270=1, var_270_arg_0=0, var_270_arg_1=1, var_271=1, var_271_arg_0=1, var_271_arg_1=1, var_272=0, var_272_arg_0=1, var_272_arg_1=0, var_273=1, var_273_arg_0=1, var_273_arg_1=0, var_274=0, var_274_arg_0=0, var_274_arg_1=1, var_275=0, var_275_arg_0=0, var_275_arg_1=0, var_276=0, var_276_arg_0=1, var_276_arg_1=0, var_277=1, var_277_arg_0=0, var_277_arg_1=1, var_278=0, var_278_arg_0=0, var_278_arg_1=1, var_279=0, var_279_arg_0=0, var_279_arg_1=0, var_280=0, var_280_arg_0=0, var_280_arg_1=0, var_281=0, var_281_arg_0=1, var_281_arg_1=0, var_282=0, var_282_arg_0=0, var_282_arg_1=0, var_283=0, var_283_arg_0=0, var_283_arg_1=1, var_284=1, var_284_arg_0=1, var_284_arg_1=0, var_285=0, var_285_arg_0=0, var_285_arg_1=1, var_286=0, var_286_arg_0=1, var_286_arg_1=0, var_287=1, var_287_arg_0=1, var_287_arg_1=0, var_288=0, var_288_arg_0=0, var_288_arg_1=1, var_289=0, var_289_arg_0=0, var_289_arg_1=0, var_290=1, var_290_arg_0=0, var_290_arg_1=1, var_291=1, var_291_arg_0=1, var_291_arg_1=1, var_292=1, var_292_arg_0=0, var_292_arg_1=1, var_293=0, var_293_arg_0=0, var_293_arg_1=1, var_294=1, var_294_arg_0=1, var_294_arg_1=1, var_295=0, var_295_arg_0=0, var_295_arg_1=1, var_296=0, var_296_arg_0=1, var_296_arg_1=0, var_297=0, var_297_arg_0=0, var_297_arg_1=0, var_298=1, var_298_arg_0=1, var_298_arg_1=0, var_299=0, var_299_arg_0=0, var_299_arg_1=1, var_300=0, var_300_arg_0=1, var_300_arg_1=0, var_301=0, var_301_arg_0=0, var_301_arg_1=0, var_302=1, var_302_arg_0=1, var_302_arg_1=0, var_303=0, var_303_arg_0=0, var_303_arg_1=1, var_304=0, var_304_arg_0=0, var_304_arg_1=0, var_305=0, var_305_arg_0=0, var_305_arg_1=0, var_5=0, var_57=0, var_57_arg_0=0, var_57_arg_1=0, var_58=0, var_58_arg_0=1, var_58_arg_1=0, var_61=0, var_61_arg_0=1, var_61_arg_1=0, var_61_arg_2=0, var_64=0, var_66=1, var_67=0, var_68=0, var_68_arg_0=0, var_68_arg_1=0, var_69=1, var_69_arg_0=1, var_69_arg_1=0, var_70=1, var_70_arg_0=1, var_71=1, var_71_arg_0=1, var_71_arg_1=1, var_71_arg_2=0, var_72=1, var_72_arg_0=0, var_72_arg_1=0, var_72_arg_2=1, var_76=0, var_76_arg_0=0, var_76_arg_1=0, var_77=1, var_77_arg_0=1, var_77_arg_1=0, var_78=1, var_78_arg_0=1, var_79=0, var_79_arg_0=0, var_79_arg_1=1, var_79_arg_2=0, var_82=0, var_82_arg_0=0, var_82_arg_1=0, var_82_arg_2=0, var_85=1, var_87=0, var_87_arg_0=0, var_87_arg_1=0, var_87_arg_2=0, var_88=0, var_88_arg_0=0, var_88_arg_1=1, var_88_arg_2=0, var_90=0, var_90_arg_0=0, var_90_arg_1=0, var_90_arg_2=0, var_92=1, var_92_arg_0=1, var_92_arg_1=1, var_93=0, var_93_arg_0=1, var_93_arg_1=0, var_94=0, var_94_arg_0=0, var_94_arg_1=0, var_96=0, var_96_arg_0=0, var_96_arg_1=0, var_97=1, var_97_arg_0=0, var_97_arg_1=1, var_98=1, var_98_arg_0=1, var_98_arg_1=1] [L137] input_60 = __VERIFIER_nondet_uchar() [L138] input_60 = input_60 & mask_SORT_1 [L139] input_63 = __VERIFIER_nondet_uchar() [L140] input_63 = input_63 & mask_SORT_1 [L141] input_65 = __VERIFIER_nondet_uchar() [L142] input_65 = input_65 & mask_SORT_1 [L143] input_75 = __VERIFIER_nondet_uchar() [L144] input_75 = input_75 & mask_SORT_1 [L145] input_81 = __VERIFIER_nondet_uchar() [L146] input_81 = input_81 & mask_SORT_1 [L147] input_84 = __VERIFIER_nondet_uchar() [L148] input_84 = input_84 & mask_SORT_1 [L149] input_86 = __VERIFIER_nondet_uchar() [L150] input_86 = input_86 & mask_SORT_1 [L151] input_106 = __VERIFIER_nondet_uchar() [L152] input_108 = __VERIFIER_nondet_uchar() [L153] input_119 = __VERIFIER_nondet_uchar() [L154] input_121 = __VERIFIER_nondet_uchar() [L155] input_125 = __VERIFIER_nondet_uchar() [L156] input_127 = __VERIFIER_nondet_uchar() [L159] SORT_1 var_57_arg_0 = state_43; [L160] SORT_1 var_57_arg_1 = state_45; [L161] SORT_1 var_57 = var_57_arg_0 | var_57_arg_1; [L162] SORT_1 var_58_arg_0 = ~state_55; [L163] var_58_arg_0 = var_58_arg_0 & mask_SORT_1 [L164] SORT_1 var_58_arg_1 = var_57; [L165] SORT_1 var_58 = var_58_arg_0 & var_58_arg_1; [L166] var_58 = var_58 & mask_SORT_1 [L167] SORT_1 bad_59_arg_0 = var_58; [L168] CALL __VERIFIER_assert(!(bad_59_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 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 80.0s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 2 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred 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, 44.6s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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 03:47:49,107 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/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_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.protocols.1.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/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_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/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 aa839a4e8ed9339d6ad436e2f1e2721e6ff88794668222413ef781c5602de5f5 --- 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 03:47:51,596 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:47:51,599 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:47:51,630 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:47:51,631 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:47:51,632 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:47:51,635 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:47:51,639 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:47:51,643 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:47:51,649 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:47:51,650 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:47:51,651 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:47:51,653 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:47:51,656 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:47:51,657 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:47:51,660 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:47:51,663 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:47:51,667 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:47:51,669 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:47:51,672 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:47:51,678 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:47:51,680 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:47:51,681 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:47:51,684 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:47:51,687 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:47:51,692 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:47:51,692 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:47:51,694 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:47:51,697 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:47:51,698 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:47:51,699 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:47:51,700 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:47:51,701 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:47:51,702 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:47:51,703 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:47:51,704 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:47:51,705 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:47:51,706 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:47:51,707 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:47:51,708 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:47:51,710 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:47:51,711 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-03 03:47:51,775 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:47:51,777 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:47:51,778 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:47:51,778 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:47:51,779 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:47:51,779 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:47:51,780 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:47:51,780 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:47:51,780 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:47:51,781 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:47:51,782 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:47:51,782 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:47:51,784 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:47:51,784 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:47:51,784 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:47:51,785 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:47:51,785 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:47:51,785 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-03 03:47:51,785 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-03 03:47:51,786 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-03 03:47:51,786 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:47:51,786 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:47:51,787 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:47:51,787 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:47:51,787 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-03 03:47:51,787 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:47:51,788 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:47:51,788 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:47:51,788 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:47:51,789 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:47:51,789 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-03 03:47:51,789 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-03 03:47:51,790 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:47:51,790 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:47:51,790 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-03 03:47:51,791 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_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa839a4e8ed9339d6ad436e2f1e2721e6ff88794668222413ef781c5602de5f5 [2022-11-03 03:47:52,241 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:47:52,268 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:47:52,271 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:47:52,273 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:47:52,274 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:47:52,275 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.protocols.1.prop1-func-interl.c [2022-11-03 03:47:52,347 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/data/2367ab195/91e0834867354d059144278d3010aa87/FLAGf757e9f74 [2022-11-03 03:47:52,954 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:47:52,954 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.protocols.1.prop1-func-interl.c [2022-11-03 03:47:52,968 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/data/2367ab195/91e0834867354d059144278d3010aa87/FLAGf757e9f74 [2022-11-03 03:47:53,364 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/data/2367ab195/91e0834867354d059144278d3010aa87 [2022-11-03 03:47:53,367 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:47:53,375 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:47:53,377 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:47:53,377 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:47:53,381 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:47:53,385 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:47:53" (1/1) ... [2022-11-03 03:47:53,386 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66b19ab6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:53, skipping insertion in model container [2022-11-03 03:47:53,386 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:47:53" (1/1) ... [2022-11-03 03:47:53,396 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:47:53,464 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:47:53,662 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_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.protocols.1.prop1-func-interl.c[1014,1027] [2022-11-03 03:47:53,965 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:47:53,968 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:47:53,991 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_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.protocols.1.prop1-func-interl.c[1014,1027] [2022-11-03 03:47:54,128 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:47:54,164 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:47:54,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:54 WrapperNode [2022-11-03 03:47:54,167 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:47:54,169 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:47:54,169 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:47:54,169 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:47:54,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:54" (1/1) ... [2022-11-03 03:47:54,201 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:54" (1/1) ... [2022-11-03 03:47:54,293 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 968 [2022-11-03 03:47:54,294 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:47:54,295 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:47:54,295 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:47:54,295 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:47:54,306 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:54" (1/1) ... [2022-11-03 03:47:54,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:54" (1/1) ... [2022-11-03 03:47:54,319 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:54" (1/1) ... [2022-11-03 03:47:54,319 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:54" (1/1) ... [2022-11-03 03:47:54,344 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:54" (1/1) ... [2022-11-03 03:47:54,350 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:54" (1/1) ... [2022-11-03 03:47:54,355 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:54" (1/1) ... [2022-11-03 03:47:54,360 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:54" (1/1) ... [2022-11-03 03:47:54,368 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:47:54,369 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:47:54,369 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:47:54,370 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:47:54,370 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:54" (1/1) ... [2022-11-03 03:47:54,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:47:54,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:47:54,420 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:47:54,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:47:54,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:47:54,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:47:54,882 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:47:54,885 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:47:56,159 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:47:56,167 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:47:56,167 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 03:47:56,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:47:56 BoogieIcfgContainer [2022-11-03 03:47:56,170 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:47:56,172 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:47:56,173 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:47:56,176 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:47:56,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:47:53" (1/3) ... [2022-11-03 03:47:56,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e30de5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:47:56, skipping insertion in model container [2022-11-03 03:47:56,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:54" (2/3) ... [2022-11-03 03:47:56,178 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e30de5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:47:56, skipping insertion in model container [2022-11-03 03:47:56,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:47:56" (3/3) ... [2022-11-03 03:47:56,180 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.protocols.1.prop1-func-interl.c [2022-11-03 03:47:56,202 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:47:56,202 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:47:56,253 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:47:56,259 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;@35e8caae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:47:56,260 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:47:56,264 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 25 states have (on average 1.48) internal successors, (37), 26 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:47:56,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-03 03:47:56,271 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:47:56,271 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-03 03:47:56,272 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:47:56,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:47:56,277 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-03 03:47:56,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:47:56,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1575739987] [2022-11-03 03:47:56,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:47:56,292 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:47:56,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:47:56,299 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:47:56,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-03 03:47:56,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:47:56,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-03 03:47:56,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:47:56,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:47:56,711 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:47:56,712 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:47:56,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1575739987] [2022-11-03 03:47:56,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1575739987] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:47:56,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:47:56,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 03:47:56,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225921877] [2022-11-03 03:47:56,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:47:56,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 03:47:56,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:47:56,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 03:47:56,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:47:56,764 INFO L87 Difference]: Start difference. First operand has 27 states, 25 states have (on average 1.48) internal successors, (37), 26 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:47:56,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:47:56,913 INFO L93 Difference]: Finished difference Result 68 states and 102 transitions. [2022-11-03 03:47:56,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 03:47:56,916 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-03 03:47:56,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:47:56,924 INFO L225 Difference]: With dead ends: 68 [2022-11-03 03:47:56,925 INFO L226 Difference]: Without dead ends: 43 [2022-11-03 03:47:56,928 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 03:47:56,931 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 51 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:47:56,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 85 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:47:56,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-11-03 03:47:56,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 25. [2022-11-03 03:47:56,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.375) internal successors, (33), 24 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:47:56,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 33 transitions. [2022-11-03 03:47:56,967 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 33 transitions. Word has length 5 [2022-11-03 03:47:56,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:47:56,968 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 33 transitions. [2022-11-03 03:47:56,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:47:56,968 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 33 transitions. [2022-11-03 03:47:56,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-03 03:47:56,969 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:47:56,969 INFO L195 NwaCegarLoop]: trace histogram [2, 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 03:47:56,987 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-03 03:47:57,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:47:57,183 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:47:57,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:47:57,184 INFO L85 PathProgramCache]: Analyzing trace with hash -63105083, now seen corresponding path program 1 times [2022-11-03 03:47:57,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:47:57,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [15095067] [2022-11-03 03:47:57,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:47:57,187 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:47:57,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:47:57,191 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:47:57,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-03 03:47:57,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:47:57,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-03 03:47:57,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:47:58,702 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:47:58,703 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:48:06,363 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:48:06,364 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:48:06,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [15095067] [2022-11-03 03:48:06,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [15095067] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:48:06,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1479034073] [2022-11-03 03:48:06,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:48:06,365 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 03:48:06,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 03:48:06,369 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 03:48:06,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-03 03:48:07,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:48:07,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-03 03:48:07,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:48:07,578 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:48:07,579 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:49:07,626 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:49:07,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1479034073] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:49:07,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [688856954] [2022-11-03 03:49:07,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:49:07,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:49:07,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:49:07,635 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:49:07,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-03 03:49:08,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:49:08,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-03 03:49:08,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:49:09,015 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:49:09,016 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:49:17,119 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:49:17,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [688856954] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:49:17,120 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-03 03:49:17,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10, 10, 9, 9] total 34 [2022-11-03 03:49:17,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131773297] [2022-11-03 03:49:17,121 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-03 03:49:17,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-03 03:49:17,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:49:17,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-03 03:49:17,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=910, Unknown=33, NotChecked=0, Total=1122 [2022-11-03 03:49:17,125 INFO L87 Difference]: Start difference. First operand 25 states and 33 transitions. Second operand has 34 states, 34 states have (on average 3.1176470588235294) internal successors, (106), 34 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:49:17,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:49:17,886 INFO L93 Difference]: Finished difference Result 63 states and 87 transitions. [2022-11-03 03:49:17,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-03 03:49:17,887 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 3.1176470588235294) internal successors, (106), 34 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-03 03:49:17,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:49:17,889 INFO L225 Difference]: With dead ends: 63 [2022-11-03 03:49:17,889 INFO L226 Difference]: Without dead ends: 61 [2022-11-03 03:49:17,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 104 SyntacticMatches, 4 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 511 ImplicationChecksByTransitivity, 76.1s TimeCoverageRelationStatistics Valid=354, Invalid=1419, Unknown=33, NotChecked=0, Total=1806 [2022-11-03 03:49:17,892 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 244 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 32 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:49:17,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 426 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 32 Unchecked, 0.0s Time] [2022-11-03 03:49:17,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-11-03 03:49:17,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 42. [2022-11-03 03:49:17,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 41 states have (on average 1.4146341463414633) internal successors, (58), 41 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:49:17,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 58 transitions. [2022-11-03 03:49:17,901 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 58 transitions. Word has length 24 [2022-11-03 03:49:17,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:49:17,901 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 58 transitions. [2022-11-03 03:49:17,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 3.1176470588235294) internal successors, (106), 34 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:49:17,902 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 58 transitions. [2022-11-03 03:49:17,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-03 03:49:17,903 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:49:17,903 INFO L195 NwaCegarLoop]: trace histogram [2, 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 03:49:17,924 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2022-11-03 03:49:18,139 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-03 03:49:18,326 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-03 03:49:18,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:49:18,516 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:49:18,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:49:18,517 INFO L85 PathProgramCache]: Analyzing trace with hash 616953287, now seen corresponding path program 1 times [2022-11-03 03:49:18,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:49:18,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [181744081] [2022-11-03 03:49:18,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:49:18,519 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:49:18,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:49:18,520 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:49:18,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-03 03:49:18,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:49:18,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-03 03:49:18,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:49:19,400 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:49:19,401 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:49:26,248 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:49:26,248 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:49:26,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [181744081] [2022-11-03 03:49:26,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [181744081] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:49:26,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1842640594] [2022-11-03 03:49:26,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:49:26,250 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 03:49:26,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 03:49:26,263 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 03:49:26,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-11-03 03:49:26,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:49:26,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-03 03:49:26,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:49:27,200 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:49:27,200 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:49:27,627 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:49:27,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1842640594] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:49:27,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1664459782] [2022-11-03 03:49:27,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:49:27,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:49:27,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:49:27,631 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:49:27,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-03 03:49:28,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:49:28,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-03 03:49:28,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:49:28,386 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:49:28,386 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:49:28,894 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:49:28,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1664459782] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:49:28,895 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-03 03:49:28,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 9, 9] total 16 [2022-11-03 03:49:28,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240890067] [2022-11-03 03:49:28,895 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-03 03:49:28,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:49:28,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:49:28,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:49:28,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=180, Unknown=2, NotChecked=0, Total=240 [2022-11-03 03:49:28,897 INFO L87 Difference]: Start difference. First operand 42 states and 58 transitions. Second operand has 16 states, 16 states have (on average 3.125) internal successors, (50), 16 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:49:28,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:49:28,921 INFO L93 Difference]: Finished difference Result 116 states and 163 transitions. [2022-11-03 03:49:28,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 03:49:28,921 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.125) internal successors, (50), 16 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-03 03:49:28,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:49:28,923 INFO L225 Difference]: With dead ends: 116 [2022-11-03 03:49:28,923 INFO L226 Difference]: Without dead ends: 114 [2022-11-03 03:49:28,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 118 SyntacticMatches, 6 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=58, Invalid=180, Unknown=2, NotChecked=0, Total=240 [2022-11-03 03:49:28,925 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 101 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 29 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:49:28,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 361 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 29 Unchecked, 0.0s Time] [2022-11-03 03:49:28,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-11-03 03:49:28,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 73. [2022-11-03 03:49:28,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 72 states have (on average 1.4166666666666667) internal successors, (102), 72 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:49:28,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 102 transitions. [2022-11-03 03:49:28,936 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 102 transitions. Word has length 24 [2022-11-03 03:49:28,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:49:28,936 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 102 transitions. [2022-11-03 03:49:28,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.125) internal successors, (50), 16 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:49:28,937 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 102 transitions. [2022-11-03 03:49:28,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-03 03:49:28,938 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:49:28,938 INFO L195 NwaCegarLoop]: trace histogram [2, 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 03:49:28,950 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2022-11-03 03:49:29,170 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-03 03:49:29,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-03 03:49:29,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:49:29,546 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:49:29,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:49:29,546 INFO L85 PathProgramCache]: Analyzing trace with hash 637959495, now seen corresponding path program 1 times [2022-11-03 03:49:29,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:49:29,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1977582178] [2022-11-03 03:49:29,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:49:29,548 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:49:29,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:49:29,550 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:49:29,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-03 03:49:29,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:49:29,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-03 03:49:29,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:49:30,531 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:49:30,532 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:49:36,674 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:49:36,675 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:49:36,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1977582178] [2022-11-03 03:49:36,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1977582178] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:49:36,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1184491484] [2022-11-03 03:49:36,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:49:36,676 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 03:49:36,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 03:49:36,679 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 03:49:36,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2022-11-03 03:49:37,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:49:37,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-03 03:49:37,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:49:37,731 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:49:37,732 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:50:37,021 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:50:37,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1184491484] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:50:37,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1309863666] [2022-11-03 03:50:37,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:50:37,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:50:37,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:50:37,031 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:50:37,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-03 03:50:37,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:50:37,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-03 03:50:37,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:50:38,314 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:50:38,314 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:51:00,926 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:51:00,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1309863666] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:51:00,927 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-03 03:51:00,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10, 10, 11, 11] total 37 [2022-11-03 03:51:00,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808281603] [2022-11-03 03:51:00,927 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-03 03:51:00,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-11-03 03:51:00,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:51:00,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-11-03 03:51:00,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=211, Invalid=1085, Unknown=36, NotChecked=0, Total=1332 [2022-11-03 03:51:00,930 INFO L87 Difference]: Start difference. First operand 73 states and 102 transitions. Second operand has 37 states, 37 states have (on average 2.8378378378378377) internal successors, (105), 37 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:51:01,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:51:01,897 INFO L93 Difference]: Finished difference Result 113 states and 158 transitions. [2022-11-03 03:51:01,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-03 03:51:01,898 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 2.8378378378378377) internal successors, (105), 37 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-03 03:51:01,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:51:01,899 INFO L225 Difference]: With dead ends: 113 [2022-11-03 03:51:01,899 INFO L226 Difference]: Without dead ends: 111 [2022-11-03 03:51:01,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 101 SyntacticMatches, 4 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 616 ImplicationChecksByTransitivity, 88.9s TimeCoverageRelationStatistics Valid=400, Invalid=1634, Unknown=36, NotChecked=0, Total=2070 [2022-11-03 03:51:01,901 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 142 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 24 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:51:01,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 372 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 24 Unchecked, 0.0s Time] [2022-11-03 03:51:01,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2022-11-03 03:51:01,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2022-11-03 03:51:01,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 110 states have (on average 1.4181818181818182) internal successors, (156), 110 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:51:01,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 156 transitions. [2022-11-03 03:51:01,914 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 156 transitions. Word has length 24 [2022-11-03 03:51:01,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:51:01,914 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 156 transitions. [2022-11-03 03:51:01,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 2.8378378378378377) internal successors, (105), 37 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:51:01,915 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 156 transitions. [2022-11-03 03:51:01,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-03 03:51:01,916 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:51:01,916 INFO L195 NwaCegarLoop]: trace histogram [2, 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 03:51:01,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-03 03:51:02,162 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-03 03:51:02,344 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2022-11-03 03:51:02,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 03:51:02,539 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:51:02,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:51:02,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1882000439, now seen corresponding path program 1 times [2022-11-03 03:51:02,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:51:02,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1669758598] [2022-11-03 03:51:02,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:51:02,541 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:51:02,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:51:02,542 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:51:02,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-03 03:51:02,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:51:02,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-03 03:51:02,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:51:03,447 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:51:03,448 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:51:13,223 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:51:13,223 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:51:13,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1669758598] [2022-11-03 03:51:13,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1669758598] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:51:13,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2138450991] [2022-11-03 03:51:13,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:51:13,223 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 03:51:13,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 03:51:13,224 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 03:51:13,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2022-11-03 03:51:13,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:51:13,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-03 03:51:13,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:51:14,286 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:51:14,287 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:52:08,276 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:52:08,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2138450991] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:52:08,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1725240130] [2022-11-03 03:52:08,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:52:08,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:52:08,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:52:08,281 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:52:08,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-03 03:52:08,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:52:08,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 38 conjunts are in the unsatisfiable core [2022-11-03 03:52:08,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:52:09,716 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:52:09,716 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:52:25,667 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:52:25,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1725240130] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:52:25,667 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-03 03:52:25,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10, 10, 11, 11] total 37 [2022-11-03 03:52:25,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770021935] [2022-11-03 03:52:25,668 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-03 03:52:25,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-11-03 03:52:25,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:52:25,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-11-03 03:52:25,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=1087, Unknown=32, NotChecked=0, Total=1332 [2022-11-03 03:52:25,670 INFO L87 Difference]: Start difference. First operand 111 states and 156 transitions. Second operand has 37 states, 37 states have (on average 2.8378378378378377) internal successors, (105), 37 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:52:26,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:52:26,740 INFO L93 Difference]: Finished difference Result 195 states and 275 transitions. [2022-11-03 03:52:26,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-03 03:52:26,741 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 2.8378378378378377) internal successors, (105), 37 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-03 03:52:26,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:52:26,742 INFO L225 Difference]: With dead ends: 195 [2022-11-03 03:52:26,742 INFO L226 Difference]: Without dead ends: 193 [2022-11-03 03:52:26,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 102 SyntacticMatches, 4 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 622 ImplicationChecksByTransitivity, 80.7s TimeCoverageRelationStatistics Valid=392, Invalid=1646, Unknown=32, NotChecked=0, Total=2070 [2022-11-03 03:52:26,744 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 122 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 25 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:52:26,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 363 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 25 Unchecked, 0.0s Time] [2022-11-03 03:52:26,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2022-11-03 03:52:26,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2022-11-03 03:52:26,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 192 states have (on average 1.421875) internal successors, (273), 192 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:52:26,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 273 transitions. [2022-11-03 03:52:26,765 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 273 transitions. Word has length 24 [2022-11-03 03:52:26,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:52:26,765 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 273 transitions. [2022-11-03 03:52:26,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 2.8378378378378377) internal successors, (105), 37 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:52:26,766 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 273 transitions. [2022-11-03 03:52:26,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-03 03:52:26,767 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:52:26,767 INFO L195 NwaCegarLoop]: trace histogram [2, 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 03:52:26,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2022-11-03 03:52:26,985 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-03 03:52:27,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-03 03:52:27,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:52:27,375 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:52:27,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:52:27,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1318017865, now seen corresponding path program 1 times [2022-11-03 03:52:27,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:52:27,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [432772814] [2022-11-03 03:52:27,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:52:27,378 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:52:27,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:52:27,379 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:52:27,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-03 03:52:27,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:52:27,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-03 03:52:27,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:52:28,106 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:52:28,106 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:52:36,826 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:52:36,827 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:52:36,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [432772814] [2022-11-03 03:52:36,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [432772814] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:52:36,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1242216201] [2022-11-03 03:52:36,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:52:36,827 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 03:52:36,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 03:52:36,828 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 03:52:36,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2022-11-03 03:52:37,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:52:37,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-03 03:52:37,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:52:37,705 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:52:37,705 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:52:38,074 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:52:38,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1242216201] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:52:38,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [682971573] [2022-11-03 03:52:38,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:52:38,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:52:38,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:52:38,076 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:52:38,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-03 03:52:38,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:52:38,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 37 conjunts are in the unsatisfiable core [2022-11-03 03:52:38,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:52:38,764 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:52:38,764 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:52:39,353 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:52:39,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [682971573] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:52:39,354 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-03 03:52:39,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 9, 9] total 16 [2022-11-03 03:52:39,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626027541] [2022-11-03 03:52:39,355 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-03 03:52:39,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:52:39,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:52:39,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:52:39,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=178, Unknown=4, NotChecked=0, Total=240 [2022-11-03 03:52:39,356 INFO L87 Difference]: Start difference. First operand 193 states and 273 transitions. Second operand has 16 states, 16 states have (on average 3.125) internal successors, (50), 16 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:52:39,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:52:39,385 INFO L93 Difference]: Finished difference Result 347 states and 488 transitions. [2022-11-03 03:52:39,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-03 03:52:39,391 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.125) internal successors, (50), 16 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-03 03:52:39,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:52:39,393 INFO L225 Difference]: With dead ends: 347 [2022-11-03 03:52:39,393 INFO L226 Difference]: Without dead ends: 345 [2022-11-03 03:52:39,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 118 SyntacticMatches, 6 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=58, Invalid=178, Unknown=4, NotChecked=0, Total=240 [2022-11-03 03:52:39,397 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 137 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 33 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:52:39,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 347 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 33 Unchecked, 0.0s Time] [2022-11-03 03:52:39,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2022-11-03 03:52:39,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 201. [2022-11-03 03:52:39,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 200 states have (on average 1.425) internal successors, (285), 200 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:52:39,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 285 transitions. [2022-11-03 03:52:39,423 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 285 transitions. Word has length 24 [2022-11-03 03:52:39,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:52:39,423 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 285 transitions. [2022-11-03 03:52:39,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.125) internal successors, (50), 16 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:52:39,423 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 285 transitions. [2022-11-03 03:52:39,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-03 03:52:39,425 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:52:39,426 INFO L195 NwaCegarLoop]: trace histogram [2, 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 03:52:39,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-11-03 03:52:39,637 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-03 03:52:39,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2022-11-03 03:52:40,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 03:52:40,027 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:52:40,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:52:40,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1201942069, now seen corresponding path program 1 times [2022-11-03 03:52:40,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:52:40,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [694387678] [2022-11-03 03:52:40,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:52:40,028 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:52:40,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:52:40,029 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:52:40,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-11-03 03:52:40,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:52:40,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 40 conjunts are in the unsatisfiable core [2022-11-03 03:52:40,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:52:40,809 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:52:40,809 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:52:49,648 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:52:49,648 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:52:49,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [694387678] [2022-11-03 03:52:49,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [694387678] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:52:49,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1133519836] [2022-11-03 03:52:49,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:52:49,649 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 03:52:49,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 03:52:49,650 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 03:52:49,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2022-11-03 03:52:50,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:52:50,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 40 conjunts are in the unsatisfiable core [2022-11-03 03:52:50,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:52:50,589 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:52:50,589 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:52:51,006 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:52:51,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1133519836] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:52:51,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [933292747] [2022-11-03 03:52:51,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:52:51,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:52:51,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:52:51,007 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:52:51,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-11-03 03:52:51,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:52:51,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 42 conjunts are in the unsatisfiable core [2022-11-03 03:52:51,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:52:51,942 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:52:51,942 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:52:59,723 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:52:59,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [933292747] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:52:59,723 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-03 03:52:59,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 9, 9] total 24 [2022-11-03 03:52:59,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809257131] [2022-11-03 03:52:59,724 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-03 03:52:59,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-03 03:52:59,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:52:59,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-03 03:52:59,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=455, Unknown=6, NotChecked=0, Total=552 [2022-11-03 03:52:59,725 INFO L87 Difference]: Start difference. First operand 201 states and 285 transitions. Second operand has 24 states, 24 states have (on average 3.5833333333333335) internal successors, (86), 24 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:53:00,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:53:00,129 INFO L93 Difference]: Finished difference Result 266 states and 370 transitions. [2022-11-03 03:53:00,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 03:53:00,130 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.5833333333333335) internal successors, (86), 24 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-03 03:53:00,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:53:00,131 INFO L225 Difference]: With dead ends: 266 [2022-11-03 03:53:00,132 INFO L226 Difference]: Without dead ends: 264 [2022-11-03 03:53:00,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 113 SyntacticMatches, 5 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 17.0s TimeCoverageRelationStatistics Valid=193, Invalid=731, Unknown=6, NotChecked=0, Total=930 [2022-11-03 03:53:00,133 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 102 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 31 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:53:00,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 384 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 31 Unchecked, 0.0s Time] [2022-11-03 03:53:00,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2022-11-03 03:53:00,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 201. [2022-11-03 03:53:00,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 200 states have (on average 1.425) internal successors, (285), 200 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:53:00,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 285 transitions. [2022-11-03 03:53:00,168 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 285 transitions. Word has length 24 [2022-11-03 03:53:00,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:53:00,168 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 285 transitions. [2022-11-03 03:53:00,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 3.5833333333333335) internal successors, (86), 24 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:53:00,169 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 285 transitions. [2022-11-03 03:53:00,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-03 03:53:00,170 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:53:00,170 INFO L195 NwaCegarLoop]: trace histogram [2, 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 03:53:00,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-11-03 03:53:00,397 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-11-03 03:53:00,583 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0 [2022-11-03 03:53:00,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 03:53:00,775 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:53:00,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:53:00,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1133103179, now seen corresponding path program 1 times [2022-11-03 03:53:00,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:53:00,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1321129701] [2022-11-03 03:53:00,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:53:00,777 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:53:00,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:53:00,777 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:53:00,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-11-03 03:53:01,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:53:01,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-03 03:53:01,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:53:01,209 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:53:01,209 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:53:01,209 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:53:01,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1321129701] [2022-11-03 03:53:01,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1321129701] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:53:01,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:53:01,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 03:53:01,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718353055] [2022-11-03 03:53:01,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:53:01,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 03:53:01,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:53:01,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 03:53:01,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-03 03:53:01,211 INFO L87 Difference]: Start difference. First operand 201 states and 285 transitions. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:53:01,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:53:01,409 INFO L93 Difference]: Finished difference Result 387 states and 532 transitions. [2022-11-03 03:53:01,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 03:53:01,412 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-03 03:53:01,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:53:01,414 INFO L225 Difference]: With dead ends: 387 [2022-11-03 03:53:01,414 INFO L226 Difference]: Without dead ends: 306 [2022-11-03 03:53:01,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-03 03:53:01,416 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 36 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 19 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:53:01,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 233 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 19 Unchecked, 0.2s Time] [2022-11-03 03:53:01,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2022-11-03 03:53:01,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 227. [2022-11-03 03:53:01,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 226 states have (on average 1.4115044247787611) internal successors, (319), 226 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:53:01,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 319 transitions. [2022-11-03 03:53:01,435 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 319 transitions. Word has length 24 [2022-11-03 03:53:01,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:53:01,435 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 319 transitions. [2022-11-03 03:53:01,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:53:01,435 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 319 transitions. [2022-11-03 03:53:01,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-03 03:53:01,436 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:53:01,436 INFO L195 NwaCegarLoop]: trace histogram [2, 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 03:53:01,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-11-03 03:53:01,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:53:01,643 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:53:01,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:53:01,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1134950221, now seen corresponding path program 1 times [2022-11-03 03:53:01,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:53:01,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1525725688] [2022-11-03 03:53:01,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:53:01,644 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:53:01,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:53:01,645 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:53:01,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-11-03 03:53:01,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:53:01,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-03 03:53:01,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:53:02,534 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:53:02,535 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:53:09,693 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:53:09,693 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:53:09,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1525725688] [2022-11-03 03:53:09,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1525725688] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:53:09,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [476882641] [2022-11-03 03:53:09,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:53:09,694 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 03:53:09,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 03:53:09,695 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 03:53:09,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2022-11-03 03:53:10,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:53:10,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-03 03:53:10,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:53:10,663 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:53:10,664 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:54:06,773 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:54:06,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [476882641] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:54:06,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1698855640] [2022-11-03 03:54:06,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:54:06,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:54:06,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:54:06,776 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:54:06,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-11-03 03:54:07,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:54:07,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 39 conjunts are in the unsatisfiable core [2022-11-03 03:54:07,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:54:07,888 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:54:07,888 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:54:17,197 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:54:17,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1698855640] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:54:17,198 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-03 03:54:17,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10, 10, 9, 9] total 34 [2022-11-03 03:54:17,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859374862] [2022-11-03 03:54:17,198 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-03 03:54:17,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-03 03:54:17,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:54:17,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-03 03:54:17,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=911, Unknown=32, NotChecked=0, Total=1122 [2022-11-03 03:54:17,199 INFO L87 Difference]: Start difference. First operand 227 states and 319 transitions. Second operand has 34 states, 34 states have (on average 3.1176470588235294) internal successors, (106), 34 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:54:17,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:54:17,882 INFO L93 Difference]: Finished difference Result 270 states and 376 transitions. [2022-11-03 03:54:17,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-03 03:54:17,887 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 3.1176470588235294) internal successors, (106), 34 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-03 03:54:17,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:54:17,888 INFO L225 Difference]: With dead ends: 270 [2022-11-03 03:54:17,889 INFO L226 Difference]: Without dead ends: 268 [2022-11-03 03:54:17,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 104 SyntacticMatches, 4 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 501 ImplicationChecksByTransitivity, 73.1s TimeCoverageRelationStatistics Valid=306, Invalid=1302, Unknown=32, NotChecked=0, Total=1640 [2022-11-03 03:54:17,892 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 272 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 30 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:54:17,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 483 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 30 Unchecked, 0.0s Time] [2022-11-03 03:54:17,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2022-11-03 03:54:17,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 105. [2022-11-03 03:54:17,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 104 states have (on average 1.4134615384615385) internal successors, (147), 104 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:54:17,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 147 transitions. [2022-11-03 03:54:17,902 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 147 transitions. Word has length 24 [2022-11-03 03:54:17,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:54:17,902 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 147 transitions. [2022-11-03 03:54:17,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 3.1176470588235294) internal successors, (106), 34 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:54:17,902 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 147 transitions. [2022-11-03 03:54:17,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-03 03:54:17,903 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:54:17,904 INFO L195 NwaCegarLoop]: trace histogram [2, 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 03:54:17,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2022-11-03 03:54:18,119 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (23)] Forceful destruction successful, exit code 0 [2022-11-03 03:54:18,337 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2022-11-03 03:54:18,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:54:18,515 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:54:18,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:54:18,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1815008591, now seen corresponding path program 1 times [2022-11-03 03:54:18,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:54:18,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1046964034] [2022-11-03 03:54:18,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:54:18,517 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:54:18,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:54:18,518 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:54:18,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2022-11-03 03:54:18,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:54:18,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 40 conjunts are in the unsatisfiable core [2022-11-03 03:54:18,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:54:19,288 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:54:19,289 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:54:28,124 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:54:28,125 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:54:28,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1046964034] [2022-11-03 03:54:28,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1046964034] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:54:28,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [80310713] [2022-11-03 03:54:28,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:54:28,125 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 03:54:28,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 03:54:28,127 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 03:54:28,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2022-11-03 03:54:28,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:54:28,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 40 conjunts are in the unsatisfiable core [2022-11-03 03:54:28,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:54:29,044 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:54:29,045 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:54:29,539 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:54:29,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [80310713] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:54:29,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [868635249] [2022-11-03 03:54:29,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:54:29,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:54:29,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:54:29,541 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:54:29,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-11-03 03:54:29,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:54:29,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 43 conjunts are in the unsatisfiable core [2022-11-03 03:54:29,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:54:30,219 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:54:30,219 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:54:30,837 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:54:30,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [868635249] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:54:30,838 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-03 03:54:30,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 9, 9] total 16 [2022-11-03 03:54:30,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818334495] [2022-11-03 03:54:30,839 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-03 03:54:30,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:54:30,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:54:30,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:54:30,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=178, Unknown=4, NotChecked=0, Total=240 [2022-11-03 03:54:30,840 INFO L87 Difference]: Start difference. First operand 105 states and 147 transitions. Second operand has 16 states, 16 states have (on average 3.125) internal successors, (50), 16 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:54:30,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:54:30,870 INFO L93 Difference]: Finished difference Result 169 states and 234 transitions. [2022-11-03 03:54:30,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-03 03:54:30,871 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.125) internal successors, (50), 16 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-03 03:54:30,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:54:30,872 INFO L225 Difference]: With dead ends: 169 [2022-11-03 03:54:30,872 INFO L226 Difference]: Without dead ends: 167 [2022-11-03 03:54:30,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 118 SyntacticMatches, 6 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=58, Invalid=178, Unknown=4, NotChecked=0, Total=240 [2022-11-03 03:54:30,873 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 100 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 40 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:54:30,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 497 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 40 Unchecked, 0.0s Time] [2022-11-03 03:54:30,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2022-11-03 03:54:30,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 103. [2022-11-03 03:54:30,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 102 states have (on average 1.411764705882353) internal successors, (144), 102 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:54:30,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 144 transitions. [2022-11-03 03:54:30,882 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 144 transitions. Word has length 24 [2022-11-03 03:54:30,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:54:30,883 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 144 transitions. [2022-11-03 03:54:30,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.125) internal successors, (50), 16 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:54:30,883 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 144 transitions. [2022-11-03 03:54:30,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-03 03:54:30,884 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:54:30,884 INFO L195 NwaCegarLoop]: trace histogram [2, 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 03:54:30,906 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2022-11-03 03:54:31,103 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (26)] Forceful destruction successful, exit code 0 [2022-11-03 03:54:31,321 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2022-11-03 03:54:31,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:54:31,499 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:54:31,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:54:31,500 INFO L85 PathProgramCache]: Analyzing trace with hash 724023115, now seen corresponding path program 1 times [2022-11-03 03:54:31,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:54:31,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1391613820] [2022-11-03 03:54:31,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:54:31,501 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:54:31,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:54:31,502 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:54:31,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2022-11-03 03:54:31,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:54:31,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-03 03:54:31,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:54:32,369 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:54:32,369 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:54:37,448 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:54:37,448 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:54:37,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1391613820] [2022-11-03 03:54:37,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1391613820] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:54:37,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [993595464] [2022-11-03 03:54:37,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:54:37,449 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 03:54:37,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 03:54:37,451 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 03:54:37,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2022-11-03 03:54:38,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:54:38,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-03 03:54:38,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:54:38,397 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:54:38,397 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:55:34,324 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:55:34,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [993595464] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:55:34,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [278756763] [2022-11-03 03:55:34,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:55:34,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:55:34,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:55:34,326 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:55:34,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2022-11-03 03:55:34,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:55:34,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 38 conjunts are in the unsatisfiable core [2022-11-03 03:55:34,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:55:35,042 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:55:35,042 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:57:31,152 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:57:31,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [278756763] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:57:31,153 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-03 03:57:31,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10, 10, 11, 11] total 32 [2022-11-03 03:57:31,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573684637] [2022-11-03 03:57:31,153 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-03 03:57:31,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-03 03:57:31,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:57:31,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-03 03:57:31,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=734, Unknown=80, NotChecked=0, Total=992 [2022-11-03 03:57:31,155 INFO L87 Difference]: Start difference. First operand 103 states and 144 transitions. Second operand has 32 states, 32 states have (on average 2.75) internal successors, (88), 32 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:57:31,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:57:31,308 INFO L93 Difference]: Finished difference Result 152 states and 212 transitions. [2022-11-03 03:57:31,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-03 03:57:31,309 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 2.75) internal successors, (88), 32 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-03 03:57:31,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:57:31,310 INFO L225 Difference]: With dead ends: 152 [2022-11-03 03:57:31,310 INFO L226 Difference]: Without dead ends: 150 [2022-11-03 03:57:31,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 104 SyntacticMatches, 4 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 176.7s TimeCoverageRelationStatistics Valid=192, Invalid=784, Unknown=80, NotChecked=0, Total=1056 [2022-11-03 03:57:31,311 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 96 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 22 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:57:31,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 368 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 22 Unchecked, 0.0s Time] [2022-11-03 03:57:31,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-11-03 03:57:31,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 141. [2022-11-03 03:57:31,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 140 states have (on average 1.4142857142857144) internal successors, (198), 140 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:57:31,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 198 transitions. [2022-11-03 03:57:31,326 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 198 transitions. Word has length 24 [2022-11-03 03:57:31,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:57:31,326 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 198 transitions. [2022-11-03 03:57:31,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 2.75) internal successors, (88), 32 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:57:31,326 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 198 transitions. [2022-11-03 03:57:31,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-03 03:57:31,327 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:57:31,327 INFO L195 NwaCegarLoop]: trace histogram [2, 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 03:57:31,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2022-11-03 03:57:31,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2022-11-03 03:57:31,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (29)] Forceful destruction successful, exit code 0 [2022-11-03 03:57:31,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 03:57:31,950 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:57:31,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:57:31,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1404081485, now seen corresponding path program 1 times [2022-11-03 03:57:31,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:57:31,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [136784399] [2022-11-03 03:57:31,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:57:31,952 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:57:31,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:57:31,953 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:57:31,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2022-11-03 03:57:32,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:57:32,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 38 conjunts are in the unsatisfiable core [2022-11-03 03:57:32,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:57:32,782 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:57:32,782 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:57:35,667 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:57:35,667 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:57:35,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [136784399] [2022-11-03 03:57:35,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [136784399] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:57:35,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [841843030] [2022-11-03 03:57:35,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:57:35,668 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 03:57:35,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 03:57:35,668 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 03:57:35,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process [2022-11-03 03:57:36,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:57:36,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 38 conjunts are in the unsatisfiable core [2022-11-03 03:57:36,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:57:36,680 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:57:36,680 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:57:37,125 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:57:37,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [841843030] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:57:37,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1086916835] [2022-11-03 03:57:37,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:57:37,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:57:37,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:57:37,126 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:57:37,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2022-11-03 03:57:37,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:57:37,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 42 conjunts are in the unsatisfiable core [2022-11-03 03:57:37,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:57:37,794 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:57:37,794 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:57:38,352 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:57:38,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1086916835] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:57:38,352 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-03 03:57:38,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 9, 9] total 16 [2022-11-03 03:57:38,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715975195] [2022-11-03 03:57:38,353 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-03 03:57:38,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:57:38,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:57:38,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:57:38,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=181, Unknown=1, NotChecked=0, Total=240 [2022-11-03 03:57:38,354 INFO L87 Difference]: Start difference. First operand 141 states and 198 transitions. Second operand has 16 states, 16 states have (on average 3.125) internal successors, (50), 16 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:57:38,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:57:38,389 INFO L93 Difference]: Finished difference Result 219 states and 306 transitions. [2022-11-03 03:57:38,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-03 03:57:38,390 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.125) internal successors, (50), 16 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-03 03:57:38,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:57:38,391 INFO L225 Difference]: With dead ends: 219 [2022-11-03 03:57:38,391 INFO L226 Difference]: Without dead ends: 217 [2022-11-03 03:57:38,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 118 SyntacticMatches, 6 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=58, Invalid=181, Unknown=1, NotChecked=0, Total=240 [2022-11-03 03:57:38,392 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 103 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 43 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:57:38,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 380 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 43 Unchecked, 0.0s Time] [2022-11-03 03:57:38,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2022-11-03 03:57:38,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 137. [2022-11-03 03:57:38,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 136 states have (on average 1.411764705882353) internal successors, (192), 136 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:57:38,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 192 transitions. [2022-11-03 03:57:38,416 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 192 transitions. Word has length 24 [2022-11-03 03:57:38,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:57:38,416 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 192 transitions. [2022-11-03 03:57:38,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.125) internal successors, (50), 16 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:57:38,417 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 192 transitions. [2022-11-03 03:57:38,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-03 03:57:38,417 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:57:38,418 INFO L195 NwaCegarLoop]: trace histogram [2, 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 03:57:38,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2022-11-03 03:57:38,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (32)] Forceful destruction successful, exit code 0 [2022-11-03 03:57:38,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2022-11-03 03:57:39,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:57:39,031 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:57:39,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:57:39,032 INFO L85 PathProgramCache]: Analyzing trace with hash -553993521, now seen corresponding path program 1 times [2022-11-03 03:57:39,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:57:39,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1056187667] [2022-11-03 03:57:39,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:57:39,033 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:57:39,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:57:39,034 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:57:39,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2022-11-03 03:57:39,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:57:39,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 50 conjunts are in the unsatisfiable core [2022-11-03 03:57:39,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:57:40,006 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:57:40,006 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:57:45,177 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:57:45,178 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:57:45,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1056187667] [2022-11-03 03:57:45,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1056187667] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:57:45,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1251656411] [2022-11-03 03:57:45,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:57:45,179 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 03:57:45,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 03:57:45,180 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 03:57:45,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (35)] Waiting until timeout for monitored process [2022-11-03 03:57:45,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:57:45,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 50 conjunts are in the unsatisfiable core [2022-11-03 03:57:45,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:57:46,218 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:57:46,218 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:58:45,926 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:58:45,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1251656411] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:58:45,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [259931600] [2022-11-03 03:58:45,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:58:45,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:58:45,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:58:45,929 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:58:45,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2022-11-03 03:58:46,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:58:46,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 39 conjunts are in the unsatisfiable core [2022-11-03 03:58:46,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:58:47,281 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:58:47,281 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:59:00,094 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:59:00,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [259931600] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:59:00,095 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-03 03:59:00,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10, 10, 9, 9] total 34 [2022-11-03 03:59:00,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536320904] [2022-11-03 03:59:00,095 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-03 03:59:00,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-03 03:59:00,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:59:00,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-03 03:59:00,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=910, Unknown=33, NotChecked=0, Total=1122 [2022-11-03 03:59:00,097 INFO L87 Difference]: Start difference. First operand 137 states and 192 transitions. Second operand has 34 states, 34 states have (on average 3.1176470588235294) internal successors, (106), 34 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:59:00,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:59:00,919 INFO L93 Difference]: Finished difference Result 260 states and 363 transitions. [2022-11-03 03:59:00,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-03 03:59:00,920 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 3.1176470588235294) internal successors, (106), 34 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-03 03:59:00,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:59:00,921 INFO L225 Difference]: With dead ends: 260 [2022-11-03 03:59:00,922 INFO L226 Difference]: Without dead ends: 258 [2022-11-03 03:59:00,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 105 SyntacticMatches, 4 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 520 ImplicationChecksByTransitivity, 78.3s TimeCoverageRelationStatistics Valid=306, Invalid=1301, Unknown=33, NotChecked=0, Total=1640 [2022-11-03 03:59:00,923 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 158 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 23 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:59:00,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 522 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 23 Unchecked, 0.0s Time] [2022-11-03 03:59:00,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2022-11-03 03:59:00,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 239. [2022-11-03 03:59:00,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 238 states have (on average 1.415966386554622) internal successors, (337), 238 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:59:00,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 337 transitions. [2022-11-03 03:59:00,955 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 337 transitions. Word has length 24 [2022-11-03 03:59:00,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:59:00,956 INFO L495 AbstractCegarLoop]: Abstraction has 239 states and 337 transitions. [2022-11-03 03:59:00,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 3.1176470588235294) internal successors, (106), 34 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:59:00,956 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 337 transitions. [2022-11-03 03:59:00,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-03 03:59:00,957 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:59:00,957 INFO L195 NwaCegarLoop]: trace histogram [2, 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 03:59:00,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2022-11-03 03:59:01,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2022-11-03 03:59:01,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (35)] Forceful destruction successful, exit code 0 [2022-11-03 03:59:01,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 03:59:01,567 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:59:01,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:59:01,568 INFO L85 PathProgramCache]: Analyzing trace with hash 126064849, now seen corresponding path program 1 times [2022-11-03 03:59:01,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:59:01,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1456548984] [2022-11-03 03:59:01,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:59:01,568 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:59:01,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:59:01,569 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:59:01,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2022-11-03 03:59:01,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:59:01,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 54 conjunts are in the unsatisfiable core [2022-11-03 03:59:01,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:59:02,441 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:59:02,441 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:59:07,923 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:59:07,923 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:59:07,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1456548984] [2022-11-03 03:59:07,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1456548984] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:59:07,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1754322703] [2022-11-03 03:59:07,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:59:07,924 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 03:59:07,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 03:59:07,927 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 03:59:07,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (38)] Waiting until timeout for monitored process [2022-11-03 03:59:08,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:59:08,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 54 conjunts are in the unsatisfiable core [2022-11-03 03:59:08,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:59:08,910 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:59:08,910 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:59:09,570 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:59:09,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1754322703] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:59:09,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1339012897] [2022-11-03 03:59:09,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:59:09,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:59:09,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:59:09,575 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:59:09,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2022-11-03 03:59:09,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:59:09,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 57 conjunts are in the unsatisfiable core [2022-11-03 03:59:09,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:59:10,263 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:59:10,263 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:59:11,243 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:59:11,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1339012897] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:59:11,243 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-03 03:59:11,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 9, 9] total 16 [2022-11-03 03:59:11,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237777040] [2022-11-03 03:59:11,243 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-03 03:59:11,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:59:11,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:59:11,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:59:11,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=180, Unknown=2, NotChecked=0, Total=240 [2022-11-03 03:59:11,244 INFO L87 Difference]: Start difference. First operand 239 states and 337 transitions. Second operand has 16 states, 16 states have (on average 3.125) internal successors, (50), 16 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:59:11,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:59:11,303 INFO L93 Difference]: Finished difference Result 403 states and 565 transitions. [2022-11-03 03:59:11,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-03 03:59:11,304 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.125) internal successors, (50), 16 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-03 03:59:11,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:59:11,306 INFO L225 Difference]: With dead ends: 403 [2022-11-03 03:59:11,306 INFO L226 Difference]: Without dead ends: 401 [2022-11-03 03:59:11,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 118 SyntacticMatches, 6 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=58, Invalid=180, Unknown=2, NotChecked=0, Total=240 [2022-11-03 03:59:11,307 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 93 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 40 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:59:11,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 451 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 40 Unchecked, 0.0s Time] [2022-11-03 03:59:11,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2022-11-03 03:59:11,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 237. [2022-11-03 03:59:11,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 236 states have (on average 1.4152542372881356) internal successors, (334), 236 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:59:11,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 334 transitions. [2022-11-03 03:59:11,336 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 334 transitions. Word has length 24 [2022-11-03 03:59:11,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:59:11,336 INFO L495 AbstractCegarLoop]: Abstraction has 237 states and 334 transitions. [2022-11-03 03:59:11,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.125) internal successors, (50), 16 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:59:11,337 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 334 transitions. [2022-11-03 03:59:11,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-03 03:59:11,337 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:59:11,337 INFO L195 NwaCegarLoop]: trace histogram [2, 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 03:59:11,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2022-11-03 03:59:11,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2022-11-03 03:59:11,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (38)] Forceful destruction successful, exit code 0 [2022-11-03 03:59:11,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 03:59:11,953 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:59:11,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:59:11,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1140799535, now seen corresponding path program 1 times [2022-11-03 03:59:11,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:59:11,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1806651717] [2022-11-03 03:59:11,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:59:11,955 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:59:11,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:59:11,956 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:59:11,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2022-11-03 03:59:12,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:59:12,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-03 03:59:12,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:59:12,740 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:59:12,740 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:59:21,555 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:59:21,555 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:59:21,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1806651717] [2022-11-03 03:59:21,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1806651717] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:59:21,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1311684130] [2022-11-03 03:59:21,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:59:21,555 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 03:59:21,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 03:59:21,556 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 03:59:21,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (41)] Waiting until timeout for monitored process [2022-11-03 03:59:22,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:59:22,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-03 03:59:22,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:59:22,444 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:59:22,444 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:59:22,891 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:59:22,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1311684130] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:59:22,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1131223258] [2022-11-03 03:59:22,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:59:22,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:59:22,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:59:22,892 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:59:22,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2022-11-03 03:59:23,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:59:23,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 39 conjunts are in the unsatisfiable core [2022-11-03 03:59:23,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:59:23,544 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:59:23,544 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:59:24,096 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:59:24,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1131223258] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:59:24,097 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-03 03:59:24,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 9, 9] total 16 [2022-11-03 03:59:24,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877761438] [2022-11-03 03:59:24,097 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-03 03:59:24,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:59:24,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:59:24,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:59:24,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=178, Unknown=4, NotChecked=0, Total=240 [2022-11-03 03:59:24,099 INFO L87 Difference]: Start difference. First operand 237 states and 334 transitions. Second operand has 16 states, 16 states have (on average 3.125) internal successors, (50), 16 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:59:24,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:59:24,157 INFO L93 Difference]: Finished difference Result 426 states and 597 transitions. [2022-11-03 03:59:24,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 03:59:24,158 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.125) internal successors, (50), 16 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-03 03:59:24,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:59:24,160 INFO L225 Difference]: With dead ends: 426 [2022-11-03 03:59:24,160 INFO L226 Difference]: Without dead ends: 424 [2022-11-03 03:59:24,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 118 SyntacticMatches, 6 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=58, Invalid=178, Unknown=4, NotChecked=0, Total=240 [2022-11-03 03:59:24,161 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 74 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 29 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:59:24,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 400 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 29 Unchecked, 0.0s Time] [2022-11-03 03:59:24,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2022-11-03 03:59:24,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 237. [2022-11-03 03:59:24,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 236 states have (on average 1.4152542372881356) internal successors, (334), 236 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:59:24,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 334 transitions. [2022-11-03 03:59:24,197 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 334 transitions. Word has length 24 [2022-11-03 03:59:24,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:59:24,197 INFO L495 AbstractCegarLoop]: Abstraction has 237 states and 334 transitions. [2022-11-03 03:59:24,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.125) internal successors, (50), 16 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:59:24,198 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 334 transitions. [2022-11-03 03:59:24,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-03 03:59:24,198 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:59:24,199 INFO L195 NwaCegarLoop]: trace histogram [2, 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 03:59:24,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2022-11-03 03:59:24,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (41)] Forceful destruction successful, exit code 0 [2022-11-03 03:59:24,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2022-11-03 03:59:24,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:59:24,815 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:59:24,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:59:24,816 INFO L85 PathProgramCache]: Analyzing trace with hash -460741165, now seen corresponding path program 1 times [2022-11-03 03:59:24,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:59:24,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1844961228] [2022-11-03 03:59:24,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:59:24,816 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:59:24,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:59:24,817 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:59:24,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2022-11-03 03:59:25,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:59:25,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 60 conjunts are in the unsatisfiable core [2022-11-03 03:59:25,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:59:25,483 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:59:25,483 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:59:30,337 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:59:30,337 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:59:30,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1844961228] [2022-11-03 03:59:30,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1844961228] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:59:30,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [981326257] [2022-11-03 03:59:30,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:59:30,338 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 03:59:30,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 03:59:30,339 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 03:59:30,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0349c1-7ae8-43ba-84ca-d7a8269a2f0e/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (44)] Waiting until timeout for monitored process [2022-11-03 03:59:30,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:59:30,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 60 conjunts are in the unsatisfiable core [2022-11-03 03:59:30,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:59:31,158 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:59:31,158 INFO L328 TraceCheckSpWp]: Computing backward predicates...