./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i --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_074403e2-21ad-424d-b55e-b30ec2025198/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074403e2-21ad-424d-b55e-b30ec2025198/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_074403e2-21ad-424d-b55e-b30ec2025198/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074403e2-21ad-424d-b55e-b30ec2025198/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074403e2-21ad-424d-b55e-b30ec2025198/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_074403e2-21ad-424d-b55e-b30ec2025198/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 71a394c873c772dcf5e6708cb37d9b35e24256f5a212c542b9c08f202c87eae6 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 03:59:02,522 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:59:02,523 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:59:02,551 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:59:02,552 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:59:02,553 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:59:02,555 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:59:02,557 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:59:02,559 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:59:02,560 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:59:02,561 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:59:02,562 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:59:02,563 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:59:02,564 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:59:02,565 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:59:02,567 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:59:02,568 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:59:02,569 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:59:02,571 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:59:02,573 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:59:02,575 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:59:02,576 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:59:02,578 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:59:02,579 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:59:02,583 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:59:02,584 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:59:02,584 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:59:02,585 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:59:02,586 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:59:02,587 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:59:02,587 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:59:02,588 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:59:02,589 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:59:02,590 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:59:02,592 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:59:02,592 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:59:02,593 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:59:02,594 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:59:02,594 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:59:02,595 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:59:02,596 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:59:02,597 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074403e2-21ad-424d-b55e-b30ec2025198/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 03:59:02,622 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:59:02,622 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:59:02,623 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:59:02,623 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:59:02,624 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:59:02,624 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:59:02,624 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:59:02,625 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:59:02,625 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:59:02,625 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:59:02,625 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:59:02,626 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:59:02,626 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:59:02,626 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:59:02,626 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:59:02,627 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:59:02,627 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:59:02,627 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:59:02,628 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:59:02,628 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:59:02,628 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:59:02,629 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:59:02,629 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:59:02,629 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:59:02,629 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:59:02,630 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:59:02,630 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:59:02,631 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:59:02,631 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:59:02,631 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:59:02,631 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:59:02,632 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:59:02,632 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:59:02,632 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:59:02,632 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:59:02,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:59:02,633 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:59:02,633 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:59:02,633 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_074403e2-21ad-424d-b55e-b30ec2025198/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074403e2-21ad-424d-b55e-b30ec2025198/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71a394c873c772dcf5e6708cb37d9b35e24256f5a212c542b9c08f202c87eae6 [2022-11-03 03:59:02,948 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:59:02,981 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:59:02,984 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:59:02,985 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:59:02,988 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:59:02,989 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074403e2-21ad-424d-b55e-b30ec2025198/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i [2022-11-03 03:59:03,089 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074403e2-21ad-424d-b55e-b30ec2025198/bin/utaipan-7li7fVZpFI/data/93104dbf3/603cbda5128a4dc5896c9f7c77d24428/FLAGa18721f9b [2022-11-03 03:59:03,897 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:59:03,898 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074403e2-21ad-424d-b55e-b30ec2025198/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i [2022-11-03 03:59:03,946 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074403e2-21ad-424d-b55e-b30ec2025198/bin/utaipan-7li7fVZpFI/data/93104dbf3/603cbda5128a4dc5896c9f7c77d24428/FLAGa18721f9b [2022-11-03 03:59:04,106 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074403e2-21ad-424d-b55e-b30ec2025198/bin/utaipan-7li7fVZpFI/data/93104dbf3/603cbda5128a4dc5896c9f7c77d24428 [2022-11-03 03:59:04,110 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:59:04,111 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:59:04,116 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:59:04,116 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:59:04,120 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:59:04,121 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:59:04" (1/1) ... [2022-11-03 03:59:04,124 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d4db085 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:04, skipping insertion in model container [2022-11-03 03:59:04,124 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:59:04" (1/1) ... [2022-11-03 03:59:04,132 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:59:04,271 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:59:06,121 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_074403e2-21ad-424d-b55e-b30ec2025198/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i[263471,263484] [2022-11-03 03:59:06,185 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:59:06,222 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:59:06,539 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_074403e2-21ad-424d-b55e-b30ec2025198/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i[263471,263484] [2022-11-03 03:59:06,547 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:59:06,723 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:59:06,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:06 WrapperNode [2022-11-03 03:59:06,723 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:59:06,725 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:59:06,725 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:59:06,725 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:59:06,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:06" (1/1) ... [2022-11-03 03:59:06,813 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:06" (1/1) ... [2022-11-03 03:59:06,954 INFO L138 Inliner]: procedures = 225, calls = 1448, calls flagged for inlining = 103, calls inlined = 100, statements flattened = 3651 [2022-11-03 03:59:06,955 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:59:06,956 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:59:06,956 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:59:06,957 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:59:06,967 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:06" (1/1) ... [2022-11-03 03:59:06,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:06" (1/1) ... [2022-11-03 03:59:07,033 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:06" (1/1) ... [2022-11-03 03:59:07,033 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:06" (1/1) ... [2022-11-03 03:59:07,156 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:06" (1/1) ... [2022-11-03 03:59:07,184 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:06" (1/1) ... [2022-11-03 03:59:07,208 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:06" (1/1) ... [2022-11-03 03:59:07,233 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:06" (1/1) ... [2022-11-03 03:59:07,261 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:59:07,262 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:59:07,262 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:59:07,262 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:59:07,263 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:06" (1/1) ... [2022-11-03 03:59:07,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:59:07,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074403e2-21ad-424d-b55e-b30ec2025198/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:59:07,292 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074403e2-21ad-424d-b55e-b30ec2025198/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:59:07,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074403e2-21ad-424d-b55e-b30ec2025198/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:59:07,339 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_update_stats [2022-11-03 03:59:07,339 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_update_stats [2022-11-03 03:59:07,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 03:59:07,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 03:59:07,340 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 03:59:07,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 03:59:07,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 03:59:07,340 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 03:59:07,340 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-11-03 03:59:07,340 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-11-03 03:59:07,341 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-03 03:59:07,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-03 03:59:07,341 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 03:59:07,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 03:59:07,341 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-03 03:59:07,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-03 03:59:07,342 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-03 03:59:07,342 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-03 03:59:07,342 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-03 03:59:07,342 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-03 03:59:07,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 03:59:07,342 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 03:59:07,343 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 03:59:07,343 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 03:59:07,343 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2022-11-03 03:59:07,343 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2022-11-03 03:59:07,343 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_open [2022-11-03 03:59:07,343 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_open [2022-11-03 03:59:07,345 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_load_eeprom [2022-11-03 03:59:07,345 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_load_eeprom [2022-11-03 03:59:07,345 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-03 03:59:07,346 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-03 03:59:07,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 03:59:07,346 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-03 03:59:07,346 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_sense_lan [2022-11-03 03:59:07,346 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_sense_lan [2022-11-03 03:59:07,346 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-11-03 03:59:07,347 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-11-03 03:59:07,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 03:59:07,347 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_get_stats [2022-11-03 03:59:07,347 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_get_stats [2022-11-03 03:59:07,347 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-03 03:59:07,347 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-03 03:59:07,348 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-11-03 03:59:07,348 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-11-03 03:59:07,348 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-03 03:59:07,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-03 03:59:07,349 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-03 03:59:07,349 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-03 03:59:07,350 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-03 03:59:07,351 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-03 03:59:07,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 03:59:07,352 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-03 03:59:07,352 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-03 03:59:07,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 03:59:07,352 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2022-11-03 03:59:07,352 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2022-11-03 03:59:07,353 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2022-11-03 03:59:07,353 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2022-11-03 03:59:07,353 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-11-03 03:59:07,353 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-11-03 03:59:07,353 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-03 03:59:07,353 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-03 03:59:07,354 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-03 03:59:07,354 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-03 03:59:07,354 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-03 03:59:07,354 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-03 03:59:07,354 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-03 03:59:07,354 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-03 03:59:07,355 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-11-03 03:59:07,355 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-11-03 03:59:07,355 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_cascade_reset [2022-11-03 03:59:07,355 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_cascade_reset [2022-11-03 03:59:07,355 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2022-11-03 03:59:07,355 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2022-11-03 03:59:07,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 03:59:07,356 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-03 03:59:07,357 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-03 03:59:07,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 03:59:07,357 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_build_rx_pdl [2022-11-03 03:59:07,357 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_build_rx_pdl [2022-11-03 03:59:07,358 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-03 03:59:07,358 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-03 03:59:07,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 03:59:07,358 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-03 03:59:07,359 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-03 03:59:07,359 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-03 03:59:07,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-03 03:59:07,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 03:59:07,360 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 03:59:07,360 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_rx_bm [2022-11-03 03:59:07,361 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_rx_bm [2022-11-03 03:59:07,361 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_BM_shutdown [2022-11-03 03:59:07,361 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_BM_shutdown [2022-11-03 03:59:07,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-03 03:59:07,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-03 03:59:07,362 INFO L130 BoogieDeclarations]: Found specification of procedure wait [2022-11-03 03:59:07,362 INFO L138 BoogieDeclarations]: Found implementation of procedure wait [2022-11-03 03:59:07,362 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-11-03 03:59:07,362 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-11-03 03:59:07,363 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-03 03:59:07,363 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-03 03:59:07,363 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_hwinit [2022-11-03 03:59:07,363 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_hwinit [2022-11-03 03:59:07,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 03:59:07,364 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-03 03:59:07,364 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-03 03:59:07,364 INFO L130 BoogieDeclarations]: Found specification of procedure dev_consume_skb_any [2022-11-03 03:59:07,364 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_consume_skb_any [2022-11-03 03:59:07,364 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2022-11-03 03:59:07,364 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2022-11-03 03:59:07,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 03:59:07,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 03:59:07,365 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_whatever [2022-11-03 03:59:07,365 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_whatever [2022-11-03 03:59:07,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-03 03:59:07,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-03 03:59:07,365 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_close [2022-11-03 03:59:07,365 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_close [2022-11-03 03:59:07,365 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2022-11-03 03:59:07,365 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2022-11-03 03:59:07,365 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_stop_interface [2022-11-03 03:59:07,366 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_stop_interface [2022-11-03 03:59:07,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 03:59:07,366 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_check_lan [2022-11-03 03:59:07,366 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_check_lan [2022-11-03 03:59:07,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-03 03:59:07,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-03 03:59:07,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:59:07,366 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-03 03:59:07,366 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-03 03:59:07,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 03:59:07,367 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-03 03:59:07,367 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-03 03:59:07,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-03 03:59:07,367 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_set_multicast_list [2022-11-03 03:59:07,367 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_set_multicast_list [2022-11-03 03:59:07,367 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_rxfill [2022-11-03 03:59:07,367 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_rxfill [2022-11-03 03:59:07,368 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_start_interface [2022-11-03 03:59:07,368 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_start_interface [2022-11-03 03:59:07,368 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-03 03:59:07,368 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-03 03:59:07,368 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-03 03:59:07,368 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-03 03:59:07,368 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_clean_txring [2022-11-03 03:59:07,368 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_clean_txring [2022-11-03 03:59:07,368 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2022-11-03 03:59:07,369 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2022-11-03 03:59:07,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:59:07,369 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2022-11-03 03:59:07,369 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2022-11-03 03:59:07,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:59:07,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:59:07,369 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_login_to_vg_hub [2022-11-03 03:59:07,369 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_login_to_vg_hub [2022-11-03 03:59:07,370 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2022-11-03 03:59:07,370 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2022-11-03 03:59:08,198 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:59:08,201 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:59:08,852 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 03:59:14,138 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-03 03:59:14,427 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8: assume 0 == (if 0 == ~tmp___4~7#1 then 0 else (if 1 == ~tmp___4~7#1 then 0 else ~bitwiseAnd(~tmp___4~7#1, 2096896))) % 18446744073709551616; [2022-11-03 03:59:14,428 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume !(0 == (if 0 == ~tmp___4~7#1 then 0 else (if 1 == ~tmp___4~7#1 then 0 else ~bitwiseAnd(~tmp___4~7#1, 2096896))) % 18446744073709551616); [2022-11-03 03:59:14,428 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L8189-1: assume -9223372036854775808 <= #t~ret657#1 && #t~ret657#1 <= 9223372036854775807;havoc #t~ret657#1; [2022-11-03 03:59:14,428 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L8189: SUMMARY for call #t~ret657#1 := schedule_timeout_interruptible(1); srcloc: null [2022-11-03 03:59:14,428 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L8192: assume (if (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 <= 9223372036854775807 then (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 else (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 - 18446744073709551616) < 0; [2022-11-03 03:59:14,428 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L8192: assume !((if (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 <= 9223372036854775807 then (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 else (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 - 18446744073709551616) < 0); [2022-11-03 03:59:14,565 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:59:15,707 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:59:15,707 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-03 03:59:15,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:59:15 BoogieIcfgContainer [2022-11-03 03:59:15,712 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:59:15,714 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:59:15,714 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:59:15,718 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:59:15,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:59:04" (1/3) ... [2022-11-03 03:59:15,719 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4688c05e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:59:15, skipping insertion in model container [2022-11-03 03:59:15,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:06" (2/3) ... [2022-11-03 03:59:15,719 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4688c05e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:59:15, skipping insertion in model container [2022-11-03 03:59:15,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:59:15" (3/3) ... [2022-11-03 03:59:15,721 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i [2022-11-03 03:59:15,741 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:59:15,741 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:59:15,836 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:59:15,842 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;@4609ba61, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:59:15,842 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:59:15,850 INFO L276 IsEmpty]: Start isEmpty. Operand has 1366 states, 762 states have (on average 1.3648293963254594) internal successors, (1040), 816 states have internal predecessors, (1040), 535 states have call successors, (535), 70 states have call predecessors, (535), 69 states have return successors, (528), 512 states have call predecessors, (528), 528 states have call successors, (528) [2022-11-03 03:59:15,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-11-03 03:59:15,896 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:59:15,899 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:59:15,899 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:59:15,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:59:15,907 INFO L85 PathProgramCache]: Analyzing trace with hash 813671943, now seen corresponding path program 1 times [2022-11-03 03:59:15,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:59:15,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680395334] [2022-11-03 03:59:15,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:59:15,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:59:16,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:59:17,072 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-11-03 03:59:17,072 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:59:17,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680395334] [2022-11-03 03:59:17,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680395334] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:59:17,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:59:17,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:59:17,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166339921] [2022-11-03 03:59:17,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:59:17,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 03:59:17,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:59:17,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 03:59:17,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:59:17,120 INFO L87 Difference]: Start difference. First operand has 1366 states, 762 states have (on average 1.3648293963254594) internal successors, (1040), 816 states have internal predecessors, (1040), 535 states have call successors, (535), 70 states have call predecessors, (535), 69 states have return successors, (528), 512 states have call predecessors, (528), 528 states have call successors, (528) Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-03 03:59:20,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:59:20,602 INFO L93 Difference]: Finished difference Result 4042 states and 6298 transitions. [2022-11-03 03:59:20,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 03:59:20,604 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 132 [2022-11-03 03:59:20,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:59:20,645 INFO L225 Difference]: With dead ends: 4042 [2022-11-03 03:59:20,645 INFO L226 Difference]: Without dead ends: 2671 [2022-11-03 03:59:20,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 03:59:20,671 INFO L413 NwaCegarLoop]: 2753 mSDtfsCounter, 2051 mSDsluCounter, 7875 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2055 SdHoareTripleChecker+Valid, 10174 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:59:20,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2055 Valid, 10174 Invalid, 645 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 642 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-03 03:59:20,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2671 states. [2022-11-03 03:59:21,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2671 to 2661. [2022-11-03 03:59:21,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2661 states, 1488 states have (on average 1.3541666666666667) internal successors, (2015), 1578 states have internal predecessors, (2015), 1037 states have call successors, (1037), 137 states have call predecessors, (1037), 135 states have return successors, (1036), 1001 states have call predecessors, (1036), 1036 states have call successors, (1036) [2022-11-03 03:59:21,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2661 states to 2661 states and 4088 transitions. [2022-11-03 03:59:21,127 INFO L78 Accepts]: Start accepts. Automaton has 2661 states and 4088 transitions. Word has length 132 [2022-11-03 03:59:21,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:59:21,128 INFO L495 AbstractCegarLoop]: Abstraction has 2661 states and 4088 transitions. [2022-11-03 03:59:21,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-03 03:59:21,128 INFO L276 IsEmpty]: Start isEmpty. Operand 2661 states and 4088 transitions. [2022-11-03 03:59:21,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-11-03 03:59:21,147 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:59:21,147 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:59:21,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 03:59:21,148 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:59:21,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:59:21,150 INFO L85 PathProgramCache]: Analyzing trace with hash 56530404, now seen corresponding path program 1 times [2022-11-03 03:59:21,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:59:21,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857706446] [2022-11-03 03:59:21,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:59:21,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:59:21,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:59:21,657 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-11-03 03:59:21,658 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:59:21,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857706446] [2022-11-03 03:59:21,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857706446] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:59:21,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:59:21,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:59:21,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656250936] [2022-11-03 03:59:21,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:59:21,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 03:59:21,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:59:21,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 03:59:21,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:59:21,669 INFO L87 Difference]: Start difference. First operand 2661 states and 4088 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-03 03:59:25,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:59:25,341 INFO L93 Difference]: Finished difference Result 6635 states and 10195 transitions. [2022-11-03 03:59:25,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 03:59:25,346 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 130 [2022-11-03 03:59:25,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:59:25,382 INFO L225 Difference]: With dead ends: 6635 [2022-11-03 03:59:25,383 INFO L226 Difference]: Without dead ends: 3993 [2022-11-03 03:59:25,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 03:59:25,405 INFO L413 NwaCegarLoop]: 3034 mSDtfsCounter, 2033 mSDsluCounter, 8455 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2037 SdHoareTripleChecker+Valid, 10999 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-03 03:59:25,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2037 Valid, 10999 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-11-03 03:59:25,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3993 states. [2022-11-03 03:59:25,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3993 to 3970. [2022-11-03 03:59:25,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3970 states, 2220 states have (on average 1.3558558558558558) internal successors, (3010), 2359 states have internal predecessors, (3010), 1547 states have call successors, (1547), 205 states have call predecessors, (1547), 202 states have return successors, (1546), 1489 states have call predecessors, (1546), 1546 states have call successors, (1546) [2022-11-03 03:59:25,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3970 states to 3970 states and 6103 transitions. [2022-11-03 03:59:25,847 INFO L78 Accepts]: Start accepts. Automaton has 3970 states and 6103 transitions. Word has length 130 [2022-11-03 03:59:25,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:59:25,847 INFO L495 AbstractCegarLoop]: Abstraction has 3970 states and 6103 transitions. [2022-11-03 03:59:25,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-03 03:59:25,848 INFO L276 IsEmpty]: Start isEmpty. Operand 3970 states and 6103 transitions. [2022-11-03 03:59:25,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-03 03:59:25,858 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:59:25,858 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:59:25,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 03:59:25,859 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:59:25,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:59:25,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1249491156, now seen corresponding path program 1 times [2022-11-03 03:59:25,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:59:25,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711099329] [2022-11-03 03:59:25,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:59:25,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:59:26,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:59:26,398 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-11-03 03:59:26,399 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:59:26,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711099329] [2022-11-03 03:59:26,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711099329] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:59:26,400 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:59:26,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:59:26,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572512071] [2022-11-03 03:59:26,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:59:26,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 03:59:26,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:59:26,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 03:59:26,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:59:26,402 INFO L87 Difference]: Start difference. First operand 3970 states and 6103 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-03 03:59:29,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:59:29,655 INFO L93 Difference]: Finished difference Result 6878 states and 10506 transitions. [2022-11-03 03:59:29,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 03:59:29,656 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 133 [2022-11-03 03:59:29,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:59:29,685 INFO L225 Difference]: With dead ends: 6878 [2022-11-03 03:59:29,686 INFO L226 Difference]: Without dead ends: 3993 [2022-11-03 03:59:29,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 03:59:29,704 INFO L413 NwaCegarLoop]: 2715 mSDtfsCounter, 2027 mSDsluCounter, 7769 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2031 SdHoareTripleChecker+Valid, 10040 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-03 03:59:29,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2031 Valid, 10040 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-03 03:59:29,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3993 states. [2022-11-03 03:59:29,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3993 to 3974. [2022-11-03 03:59:29,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3974 states, 2224 states have (on average 1.3552158273381294) internal successors, (3014), 2362 states have internal predecessors, (3014), 1546 states have call successors, (1546), 206 states have call predecessors, (1546), 203 states have return successors, (1545), 1489 states have call predecessors, (1545), 1545 states have call successors, (1545) [2022-11-03 03:59:30,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3974 states to 3974 states and 6105 transitions. [2022-11-03 03:59:30,024 INFO L78 Accepts]: Start accepts. Automaton has 3974 states and 6105 transitions. Word has length 133 [2022-11-03 03:59:30,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:59:30,027 INFO L495 AbstractCegarLoop]: Abstraction has 3974 states and 6105 transitions. [2022-11-03 03:59:30,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-03 03:59:30,027 INFO L276 IsEmpty]: Start isEmpty. Operand 3974 states and 6105 transitions. [2022-11-03 03:59:30,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-11-03 03:59:30,035 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:59:30,035 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:59:30,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 03:59:30,035 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:59:30,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:59:30,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1456803729, now seen corresponding path program 1 times [2022-11-03 03:59:30,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:59:30,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844891376] [2022-11-03 03:59:30,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:59:30,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:59:30,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:59:30,474 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-11-03 03:59:30,474 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:59:30,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844891376] [2022-11-03 03:59:30,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844891376] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:59:30,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:59:30,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:59:30,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062073222] [2022-11-03 03:59:30,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:59:30,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 03:59:30,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:59:30,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 03:59:30,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:59:30,476 INFO L87 Difference]: Start difference. First operand 3974 states and 6105 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-03 03:59:33,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:59:33,316 INFO L93 Difference]: Finished difference Result 6749 states and 10307 transitions. [2022-11-03 03:59:33,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 03:59:33,316 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 131 [2022-11-03 03:59:33,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:59:33,347 INFO L225 Difference]: With dead ends: 6749 [2022-11-03 03:59:33,347 INFO L226 Difference]: Without dead ends: 3859 [2022-11-03 03:59:33,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 03:59:33,366 INFO L413 NwaCegarLoop]: 2806 mSDtfsCounter, 2028 mSDsluCounter, 7989 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2032 SdHoareTripleChecker+Valid, 10313 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-03 03:59:33,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2032 Valid, 10313 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-03 03:59:33,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3859 states. [2022-11-03 03:59:33,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3859 to 3843. [2022-11-03 03:59:33,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3843 states, 2145 states have (on average 1.3552447552447553) internal successors, (2907), 2276 states have internal predecessors, (2907), 1500 states have call successors, (1500), 200 states have call predecessors, (1500), 197 states have return successors, (1499), 1444 states have call predecessors, (1499), 1499 states have call successors, (1499) [2022-11-03 03:59:33,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3843 states to 3843 states and 5906 transitions. [2022-11-03 03:59:33,702 INFO L78 Accepts]: Start accepts. Automaton has 3843 states and 5906 transitions. Word has length 131 [2022-11-03 03:59:33,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:59:33,702 INFO L495 AbstractCegarLoop]: Abstraction has 3843 states and 5906 transitions. [2022-11-03 03:59:33,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-03 03:59:33,703 INFO L276 IsEmpty]: Start isEmpty. Operand 3843 states and 5906 transitions. [2022-11-03 03:59:33,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-11-03 03:59:33,713 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:59:33,713 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:59:33,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 03:59:33,716 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:59:33,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:59:33,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1586730786, now seen corresponding path program 1 times [2022-11-03 03:59:33,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:59:33,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135270848] [2022-11-03 03:59:33,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:59:33,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:59:33,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:59:34,381 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2022-11-03 03:59:34,381 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:59:34,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135270848] [2022-11-03 03:59:34,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135270848] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:59:34,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1597887842] [2022-11-03 03:59:34,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:59:34,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:59:34,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074403e2-21ad-424d-b55e-b30ec2025198/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:59:34,388 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074403e2-21ad-424d-b55e-b30ec2025198/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:59:34,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074403e2-21ad-424d-b55e-b30ec2025198/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 03:59:35,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:59:35,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 2166 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 03:59:35,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:59:35,287 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2022-11-03 03:59:35,287 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:59:35,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1597887842] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:59:35,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 03:59:35,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2022-11-03 03:59:35,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727735133] [2022-11-03 03:59:35,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:59:35,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:59:35,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:59:35,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:59:35,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-03 03:59:35,290 INFO L87 Difference]: Start difference. First operand 3843 states and 5906 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-03 03:59:36,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:59:36,969 INFO L93 Difference]: Finished difference Result 6513 states and 10009 transitions. [2022-11-03 03:59:36,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:59:36,975 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 143 [2022-11-03 03:59:36,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:59:37,003 INFO L225 Difference]: With dead ends: 6513 [2022-11-03 03:59:37,004 INFO L226 Difference]: Without dead ends: 3861 [2022-11-03 03:59:37,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-03 03:59:37,023 INFO L413 NwaCegarLoop]: 1931 mSDtfsCounter, 7 mSDsluCounter, 2056 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 3853 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-03 03:59:37,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 3853 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-03 03:59:37,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3861 states. [2022-11-03 03:59:37,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3861 to 3845. [2022-11-03 03:59:37,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3845 states, 2147 states have (on average 1.3549138332557056) internal successors, (2909), 2278 states have internal predecessors, (2909), 1500 states have call successors, (1500), 200 states have call predecessors, (1500), 197 states have return successors, (1499), 1444 states have call predecessors, (1499), 1499 states have call successors, (1499) [2022-11-03 03:59:37,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3845 states to 3845 states and 5908 transitions. [2022-11-03 03:59:37,402 INFO L78 Accepts]: Start accepts. Automaton has 3845 states and 5908 transitions. Word has length 143 [2022-11-03 03:59:37,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:59:37,404 INFO L495 AbstractCegarLoop]: Abstraction has 3845 states and 5908 transitions. [2022-11-03 03:59:37,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-03 03:59:37,405 INFO L276 IsEmpty]: Start isEmpty. Operand 3845 states and 5908 transitions. [2022-11-03 03:59:37,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-11-03 03:59:37,414 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:59:37,415 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:59:37,455 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074403e2-21ad-424d-b55e-b30ec2025198/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-03 03:59:37,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074403e2-21ad-424d-b55e-b30ec2025198/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:59:37,639 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:59:37,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:59:37,640 INFO L85 PathProgramCache]: Analyzing trace with hash -757837431, now seen corresponding path program 1 times [2022-11-03 03:59:37,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:59:37,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039580882] [2022-11-03 03:59:37,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:59:37,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:59:37,730 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 03:59:37,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [815274173] [2022-11-03 03:59:37,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:59:37,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:59:37,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074403e2-21ad-424d-b55e-b30ec2025198/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:59:37,731 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074403e2-21ad-424d-b55e-b30ec2025198/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:59:37,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074403e2-21ad-424d-b55e-b30ec2025198/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 03:59:38,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:59:38,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 2198 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-03 03:59:38,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:59:38,697 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2022-11-03 03:59:38,701 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:59:38,701 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:59:38,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039580882] [2022-11-03 03:59:38,702 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 03:59:38,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [815274173] [2022-11-03 03:59:38,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [815274173] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:59:38,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:59:38,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 03:59:38,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649179344] [2022-11-03 03:59:38,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:59:38,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 03:59:38,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:59:38,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 03:59:38,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 03:59:38,704 INFO L87 Difference]: Start difference. First operand 3845 states and 5908 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 03:59:43,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:59:43,458 INFO L93 Difference]: Finished difference Result 9031 states and 13869 transitions. [2022-11-03 03:59:43,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 03:59:43,459 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 147 [2022-11-03 03:59:43,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:59:43,501 INFO L225 Difference]: With dead ends: 9031 [2022-11-03 03:59:43,501 INFO L226 Difference]: Without dead ends: 6377 [2022-11-03 03:59:43,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-11-03 03:59:43,518 INFO L413 NwaCegarLoop]: 2796 mSDtfsCounter, 2062 mSDsluCounter, 13909 mSDsCounter, 0 mSdLazyCounter, 1066 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2066 SdHoareTripleChecker+Valid, 15881 SdHoareTripleChecker+Invalid, 1068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1066 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-03 03:59:43,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2066 Valid, 15881 Invalid, 1068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1066 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-11-03 03:59:43,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6377 states. [2022-11-03 03:59:44,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6377 to 6344. [2022-11-03 03:59:44,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6344 states, 3543 states have (on average 1.3567598080722552) internal successors, (4807), 3765 states have internal predecessors, (4807), 2474 states have call successors, (2474), 329 states have call predecessors, (2474), 326 states have return successors, (2478), 2377 states have call predecessors, (2478), 2473 states have call successors, (2478) [2022-11-03 03:59:44,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6344 states to 6344 states and 9759 transitions. [2022-11-03 03:59:44,203 INFO L78 Accepts]: Start accepts. Automaton has 6344 states and 9759 transitions. Word has length 147 [2022-11-03 03:59:44,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:59:44,204 INFO L495 AbstractCegarLoop]: Abstraction has 6344 states and 9759 transitions. [2022-11-03 03:59:44,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 03:59:44,205 INFO L276 IsEmpty]: Start isEmpty. Operand 6344 states and 9759 transitions. [2022-11-03 03:59:44,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-11-03 03:59:44,220 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:59:44,221 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:59:44,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074403e2-21ad-424d-b55e-b30ec2025198/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 03:59:44,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074403e2-21ad-424d-b55e-b30ec2025198/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:59:44,440 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:59:44,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:59:44,440 INFO L85 PathProgramCache]: Analyzing trace with hash 91960513, now seen corresponding path program 1 times [2022-11-03 03:59:44,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:59:44,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437727840] [2022-11-03 03:59:44,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:59:44,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:59:44,517 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 03:59:44,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [569408105] [2022-11-03 03:59:44,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:59:44,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:59:44,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074403e2-21ad-424d-b55e-b30ec2025198/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:59:44,519 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074403e2-21ad-424d-b55e-b30ec2025198/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:59:44,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074403e2-21ad-424d-b55e-b30ec2025198/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 03:59:45,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:59:45,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 2200 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-03 03:59:45,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:59:45,468 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2022-11-03 03:59:45,479 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:59:45,479 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:59:45,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437727840] [2022-11-03 03:59:45,479 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 03:59:45,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [569408105] [2022-11-03 03:59:45,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [569408105] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:59:45,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:59:45,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 03:59:45,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578632645] [2022-11-03 03:59:45,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:59:45,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 03:59:45,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:59:45,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 03:59:45,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 03:59:45,484 INFO L87 Difference]: Start difference. First operand 6344 states and 9759 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 03:59:50,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:59:50,073 INFO L93 Difference]: Finished difference Result 14040 states and 21581 transitions. [2022-11-03 03:59:50,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 03:59:50,074 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 148 [2022-11-03 03:59:50,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:59:50,115 INFO L225 Difference]: With dead ends: 14040 [2022-11-03 03:59:50,116 INFO L226 Difference]: Without dead ends: 8887 [2022-11-03 03:59:50,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-11-03 03:59:50,140 INFO L413 NwaCegarLoop]: 3108 mSDtfsCounter, 2062 mSDsluCounter, 15197 mSDsCounter, 0 mSdLazyCounter, 1133 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2066 SdHoareTripleChecker+Valid, 17429 SdHoareTripleChecker+Invalid, 1135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:59:50,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2066 Valid, 17429 Invalid, 1135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1133 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-03 03:59:50,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8887 states. [2022-11-03 03:59:50,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8887 to 8848. [2022-11-03 03:59:50,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8848 states, 4942 states have (on average 1.3573452043707002) internal successors, (6708), 5258 states have internal predecessors, (6708), 3448 states have call successors, (3448), 458 states have call predecessors, (3448), 457 states have return successors, (3460), 3309 states have call predecessors, (3460), 3447 states have call successors, (3460) [2022-11-03 03:59:51,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8848 states to 8848 states and 13616 transitions. [2022-11-03 03:59:51,010 INFO L78 Accepts]: Start accepts. Automaton has 8848 states and 13616 transitions. Word has length 148 [2022-11-03 03:59:51,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:59:51,012 INFO L495 AbstractCegarLoop]: Abstraction has 8848 states and 13616 transitions. [2022-11-03 03:59:51,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 03:59:51,012 INFO L276 IsEmpty]: Start isEmpty. Operand 8848 states and 13616 transitions. [2022-11-03 03:59:51,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-11-03 03:59:51,037 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:59:51,037 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:59:51,081 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074403e2-21ad-424d-b55e-b30ec2025198/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-03 03:59:51,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074403e2-21ad-424d-b55e-b30ec2025198/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-03 03:59:51,263 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:59:51,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:59:51,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1414265264, now seen corresponding path program 1 times [2022-11-03 03:59:51,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:59:51,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194425778] [2022-11-03 03:59:51,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:59:51,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:59:51,388 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 03:59:51,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [359383077] [2022-11-03 03:59:51,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:59:51,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:59:51,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074403e2-21ad-424d-b55e-b30ec2025198/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:59:51,390 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074403e2-21ad-424d-b55e-b30ec2025198/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:59:51,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074403e2-21ad-424d-b55e-b30ec2025198/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-03 03:59:52,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:59:52,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 2202 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-03 03:59:52,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:59:52,339 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2022-11-03 03:59:52,339 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:59:52,339 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:59:52,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194425778] [2022-11-03 03:59:52,339 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 03:59:52,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [359383077] [2022-11-03 03:59:52,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [359383077] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:59:52,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:59:52,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 03:59:52,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959793378] [2022-11-03 03:59:52,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:59:52,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 03:59:52,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:59:52,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 03:59:52,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 03:59:52,341 INFO L87 Difference]: Start difference. First operand 8848 states and 13616 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 03:59:57,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:59:57,048 INFO L93 Difference]: Finished difference Result 19046 states and 29291 transitions. [2022-11-03 03:59:57,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 03:59:57,048 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 149 [2022-11-03 03:59:57,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:59:57,107 INFO L225 Difference]: With dead ends: 19046 [2022-11-03 03:59:57,107 INFO L226 Difference]: Without dead ends: 11389 [2022-11-03 03:59:57,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-11-03 03:59:57,144 INFO L413 NwaCegarLoop]: 3129 mSDtfsCounter, 2062 mSDsluCounter, 15281 mSDsCounter, 0 mSdLazyCounter, 1133 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2066 SdHoareTripleChecker+Valid, 17534 SdHoareTripleChecker+Invalid, 1135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:59:57,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2066 Valid, 17534 Invalid, 1135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1133 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-11-03 03:59:57,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11389 states. [2022-11-03 03:59:58,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11389 to 8849. [2022-11-03 03:59:58,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8849 states, 4943 states have (on average 1.357272911187538) internal successors, (6709), 5258 states have internal predecessors, (6709), 3448 states have call successors, (3448), 458 states have call predecessors, (3448), 457 states have return successors, (3460), 3310 states have call predecessors, (3460), 3447 states have call successors, (3460) [2022-11-03 03:59:58,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8849 states to 8849 states and 13617 transitions. [2022-11-03 03:59:58,116 INFO L78 Accepts]: Start accepts. Automaton has 8849 states and 13617 transitions. Word has length 149 [2022-11-03 03:59:58,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:59:58,119 INFO L495 AbstractCegarLoop]: Abstraction has 8849 states and 13617 transitions. [2022-11-03 03:59:58,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 03:59:58,119 INFO L276 IsEmpty]: Start isEmpty. Operand 8849 states and 13617 transitions. [2022-11-03 03:59:58,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-11-03 03:59:58,137 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:59:58,137 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:59:58,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074403e2-21ad-424d-b55e-b30ec2025198/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-03 03:59:58,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074403e2-21ad-424d-b55e-b30ec2025198/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:59:58,353 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:59:58,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:59:58,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1352184936, now seen corresponding path program 1 times [2022-11-03 03:59:58,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:59:58,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096687909] [2022-11-03 03:59:58,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:59:58,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:59:58,432 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 03:59:58,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [886171122] [2022-11-03 03:59:58,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:59:58,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:59:58,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074403e2-21ad-424d-b55e-b30ec2025198/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:59:58,434 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074403e2-21ad-424d-b55e-b30ec2025198/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:59:58,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074403e2-21ad-424d-b55e-b30ec2025198/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-03 03:59:59,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:59:59,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 2204 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-03 03:59:59,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:59:59,313 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2022-11-03 03:59:59,313 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:59:59,313 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:59:59,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096687909] [2022-11-03 03:59:59,313 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 03:59:59,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886171122] [2022-11-03 03:59:59,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [886171122] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:59:59,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:59:59,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 03:59:59,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080510643] [2022-11-03 03:59:59,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:59:59,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 03:59:59,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:59:59,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 03:59:59,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 03:59:59,315 INFO L87 Difference]: Start difference. First operand 8849 states and 13617 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 04:00:03,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:00:03,623 INFO L93 Difference]: Finished difference Result 19049 states and 29294 transitions. [2022-11-03 04:00:03,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 04:00:03,624 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 150 [2022-11-03 04:00:03,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:00:03,687 INFO L225 Difference]: With dead ends: 19049 [2022-11-03 04:00:03,687 INFO L226 Difference]: Without dead ends: 11391 [2022-11-03 04:00:03,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-11-03 04:00:03,727 INFO L413 NwaCegarLoop]: 2919 mSDtfsCounter, 2062 mSDsluCounter, 14413 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2066 SdHoareTripleChecker+Valid, 16484 SdHoareTripleChecker+Invalid, 1100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-03 04:00:03,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2066 Valid, 16484 Invalid, 1100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1098 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-03 04:00:03,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11391 states. [2022-11-03 04:00:04,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11391 to 8850. [2022-11-03 04:00:04,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8850 states, 4944 states have (on average 1.3572006472491909) internal successors, (6710), 5258 states have internal predecessors, (6710), 3448 states have call successors, (3448), 458 states have call predecessors, (3448), 457 states have return successors, (3460), 3311 states have call predecessors, (3460), 3447 states have call successors, (3460) [2022-11-03 04:00:04,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8850 states to 8850 states and 13618 transitions. [2022-11-03 04:00:04,712 INFO L78 Accepts]: Start accepts. Automaton has 8850 states and 13618 transitions. Word has length 150 [2022-11-03 04:00:04,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:00:04,713 INFO L495 AbstractCegarLoop]: Abstraction has 8850 states and 13618 transitions. [2022-11-03 04:00:04,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 04:00:04,713 INFO L276 IsEmpty]: Start isEmpty. Operand 8850 states and 13618 transitions. [2022-11-03 04:00:04,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-11-03 04:00:04,742 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:00:04,742 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:00:04,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074403e2-21ad-424d-b55e-b30ec2025198/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-03 04:00:04,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074403e2-21ad-424d-b55e-b30ec2025198/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-03 04:00:04,967 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:00:04,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:00:04,968 INFO L85 PathProgramCache]: Analyzing trace with hash 80916227, now seen corresponding path program 1 times [2022-11-03 04:00:04,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:00:04,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000560786] [2022-11-03 04:00:04,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:00:04,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:00:05,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:00:05,127 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:00:05,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000560786] [2022-11-03 04:00:05,127 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-03 04:00:05,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [37769143] [2022-11-03 04:00:05,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:00:05,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:00:05,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074403e2-21ad-424d-b55e-b30ec2025198/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:00:05,129 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074403e2-21ad-424d-b55e-b30ec2025198/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:00:05,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074403e2-21ad-424d-b55e-b30ec2025198/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-03 04:00:06,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:00:06,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 2426 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 04:00:06,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:00:06,070 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2022-11-03 04:00:06,071 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:00:06,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [37769143] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:00:06,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:00:06,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:00:06,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209553903] [2022-11-03 04:00:06,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:00:06,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:00:06,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:00:06,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:00:06,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:00:06,074 INFO L87 Difference]: Start difference. First operand 8850 states and 13618 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-03 04:00:08,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:00:08,187 INFO L93 Difference]: Finished difference Result 25769 states and 39618 transitions. [2022-11-03 04:00:08,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:00:08,189 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 157 [2022-11-03 04:00:08,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:00:08,286 INFO L225 Difference]: With dead ends: 25769 [2022-11-03 04:00:08,286 INFO L226 Difference]: Without dead ends: 16938 [2022-11-03 04:00:08,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:00:08,332 INFO L413 NwaCegarLoop]: 2380 mSDtfsCounter, 1887 mSDsluCounter, 1959 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1887 SdHoareTripleChecker+Valid, 4212 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-03 04:00:08,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1887 Valid, 4212 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-03 04:00:08,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16938 states. [2022-11-03 04:00:09,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16938 to 16914. [2022-11-03 04:00:09,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16914 states, 9449 states have (on average 1.350089956609165) internal successors, (12757), 10071 states have internal predecessors, (12757), 6551 states have call successors, (6551), 914 states have call predecessors, (6551), 913 states have return successors, (6576), 6277 states have call predecessors, (6576), 6550 states have call successors, (6576) [2022-11-03 04:00:09,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16914 states to 16914 states and 25884 transitions. [2022-11-03 04:00:09,978 INFO L78 Accepts]: Start accepts. Automaton has 16914 states and 25884 transitions. Word has length 157 [2022-11-03 04:00:09,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:00:09,979 INFO L495 AbstractCegarLoop]: Abstraction has 16914 states and 25884 transitions. [2022-11-03 04:00:09,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-03 04:00:09,979 INFO L276 IsEmpty]: Start isEmpty. Operand 16914 states and 25884 transitions. [2022-11-03 04:00:09,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-11-03 04:00:09,996 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:00:09,996 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:00:10,038 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074403e2-21ad-424d-b55e-b30ec2025198/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-03 04:00:10,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074403e2-21ad-424d-b55e-b30ec2025198/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-03 04:00:10,211 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:00:10,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:00:10,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1353010575, now seen corresponding path program 1 times [2022-11-03 04:00:10,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:00:10,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409814622] [2022-11-03 04:00:10,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:00:10,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:00:10,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:00:10,353 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:00:10,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409814622] [2022-11-03 04:00:10,354 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-03 04:00:10,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1395601930] [2022-11-03 04:00:10,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:00:10,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:00:10,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074403e2-21ad-424d-b55e-b30ec2025198/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:00:10,355 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074403e2-21ad-424d-b55e-b30ec2025198/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:00:10,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074403e2-21ad-424d-b55e-b30ec2025198/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-03 04:00:11,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:00:11,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 2428 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 04:00:11,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:00:11,254 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2022-11-03 04:00:11,255 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:00:11,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1395601930] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:00:11,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:00:11,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:00:11,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41161190] [2022-11-03 04:00:11,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:00:11,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:00:11,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:00:11,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:00:11,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:00:11,259 INFO L87 Difference]: Start difference. First operand 16914 states and 25884 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-03 04:00:12,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:00:12,898 INFO L93 Difference]: Finished difference Result 30879 states and 47224 transitions. [2022-11-03 04:00:12,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:00:12,899 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 158 [2022-11-03 04:00:12,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:00:12,985 INFO L225 Difference]: With dead ends: 30879 [2022-11-03 04:00:12,986 INFO L226 Difference]: Without dead ends: 13984 [2022-11-03 04:00:13,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:00:13,072 INFO L413 NwaCegarLoop]: 1729 mSDtfsCounter, 1862 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1862 SdHoareTripleChecker+Valid, 1729 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-03 04:00:13,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1862 Valid, 1729 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-03 04:00:13,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13984 states. [2022-11-03 04:00:14,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13984 to 13984. [2022-11-03 04:00:14,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13984 states, 7989 states have (on average 1.334710226561522) internal successors, (10663), 8505 states have internal predecessors, (10663), 5220 states have call successors, (5220), 769 states have call predecessors, (5220), 774 states have return successors, (5245), 5020 states have call predecessors, (5245), 5219 states have call successors, (5245) [2022-11-03 04:00:14,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13984 states to 13984 states and 21128 transitions. [2022-11-03 04:00:14,266 INFO L78 Accepts]: Start accepts. Automaton has 13984 states and 21128 transitions. Word has length 158 [2022-11-03 04:00:14,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:00:14,267 INFO L495 AbstractCegarLoop]: Abstraction has 13984 states and 21128 transitions. [2022-11-03 04:00:14,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-03 04:00:14,267 INFO L276 IsEmpty]: Start isEmpty. Operand 13984 states and 21128 transitions. [2022-11-03 04:00:14,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-11-03 04:00:14,271 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:00:14,272 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:00:14,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074403e2-21ad-424d-b55e-b30ec2025198/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-03 04:00:14,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074403e2-21ad-424d-b55e-b30ec2025198/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:00:14,499 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:00:14,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:00:14,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1404614439, now seen corresponding path program 1 times [2022-11-03 04:00:14,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:00:14,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790896067] [2022-11-03 04:00:14,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:00:14,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:00:14,573 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 04:00:14,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [254919190] [2022-11-03 04:00:14,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:00:14,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:00:14,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074403e2-21ad-424d-b55e-b30ec2025198/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:00:14,575 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074403e2-21ad-424d-b55e-b30ec2025198/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:00:14,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074403e2-21ad-424d-b55e-b30ec2025198/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-03 04:00:15,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:00:15,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 2271 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 04:00:15,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:00:15,619 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2022-11-03 04:00:15,620 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:00:16,064 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-11-03 04:00:16,065 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:00:16,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790896067] [2022-11-03 04:00:16,065 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 04:00:16,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [254919190] [2022-11-03 04:00:16,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [254919190] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:00:16,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [730462166] [2022-11-03 04:00:16,089 INFO L159 IcfgInterpreter]: Started Sifa with 90 locations of interest [2022-11-03 04:00:16,089 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:00:16,093 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:00:16,098 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:00:16,099 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:00:18,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:18,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:18,709 INFO L244 Elim1Store]: Index analysis took 431 ms [2022-11-03 04:00:29,674 WARN L234 SmtUtils]: Spent 10.92s on a formula simplification. DAG size of input: 959 DAG size of output: 479 (called from [L 353] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-03 04:00:29,683 INFO L356 Elim1Store]: treesize reduction 2264, result has 25.5 percent of original size [2022-11-03 04:00:29,685 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 63 select indices, 63 select index equivalence classes, 1834 disjoint index pairs (out of 1953 index pairs), introduced 63 new quantified variables, introduced 180 case distinctions, treesize of input 329 treesize of output 981 [2022-11-03 04:00:30,892 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 36 [2022-11-03 04:00:31,047 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 36 [2022-11-03 04:00:31,166 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 36 [2022-11-03 04:00:31,385 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 36 [2022-11-03 04:00:31,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:31,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:31,784 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 60 select indices, 60 select index equivalence classes, 1893 disjoint index pairs (out of 1770 index pairs), introduced 60 new quantified variables, introduced 0 case distinctions, treesize of input 310 treesize of output 491 [2022-11-03 04:00:32,409 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 36 [2022-11-03 04:00:32,625 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 36 [2022-11-03 04:00:32,857 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 36 [2022-11-03 04:00:37,892 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-03 04:00:37,897 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-03 04:00:37,906 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-11-03 04:00:40,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:40,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:40,499 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 63 select indices, 63 select index equivalence classes, 1953 disjoint index pairs (out of 1953 index pairs), introduced 63 new quantified variables, introduced 0 case distinctions, treesize of input 316 treesize of output 190 [2022-11-03 04:00:41,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:41,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:41,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:41,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:41,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:41,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:41,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:41,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:41,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:41,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:41,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:41,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:41,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:41,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:41,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:41,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:41,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:41,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:41,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:41,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:41,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:41,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:41,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:41,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:41,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:41,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:41,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:41,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:41,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:41,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:41,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:41,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:41,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:41,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:41,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:41,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:41,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:41,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:41,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:41,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:41,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:41,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:41,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:41,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:41,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:41,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:41,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:41,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:41,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:41,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:41,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:41,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:41,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:41,349 INFO L244 Elim1Store]: Index analysis took 211 ms [2022-11-03 04:00:41,364 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 97 select indices, 97 select index equivalence classes, 1264 disjoint index pairs (out of 4656 index pairs), introduced 97 new quantified variables, introduced 0 case distinctions, treesize of input 790 treesize of output 292 [2022-11-03 04:00:42,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:42,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:42,107 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 62 select indices, 62 select index equivalence classes, 1893 disjoint index pairs (out of 1891 index pairs), introduced 62 new quantified variables, introduced 0 case distinctions, treesize of input 311 treesize of output 187 [2022-11-03 04:00:49,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:49,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:49,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:49,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:49,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:49,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:49,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:49,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:49,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:49,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:49,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:49,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:49,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:49,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:49,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:49,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:49,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:49,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:49,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:49,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:49,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:49,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:49,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:49,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:49,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:49,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:49,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:49,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:49,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:49,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:49,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:49,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:49,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:49,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:49,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:49,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:49,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:49,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:49,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:49,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:49,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:49,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:49,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:49,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:49,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:49,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:49,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:49,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:49,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:49,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:49,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:49,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:49,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:49,330 INFO L244 Elim1Store]: Index analysis took 177 ms [2022-11-03 04:00:49,342 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 97 select indices, 97 select index equivalence classes, 1264 disjoint index pairs (out of 4656 index pairs), introduced 97 new quantified variables, introduced 0 case distinctions, treesize of input 790 treesize of output 292 [2022-11-03 04:00:49,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:49,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:49,896 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 63 select indices, 63 select index equivalence classes, 1953 disjoint index pairs (out of 1953 index pairs), introduced 63 new quantified variables, introduced 0 case distinctions, treesize of input 316 treesize of output 190 [2022-11-03 04:00:50,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:50,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:50,330 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 62 select indices, 62 select index equivalence classes, 1893 disjoint index pairs (out of 1891 index pairs), introduced 62 new quantified variables, introduced 0 case distinctions, treesize of input 311 treesize of output 187 [2022-11-03 04:00:56,961 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 04:00:57,338 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 04:00:57,567 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 04:01:01,614 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 04:01:01,881 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 04:01:02,134 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 04:01:39,393 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 04:01:39,494 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 04:01:39,780 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 04:01:41,022 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 04:01:41,027 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 04:01:41,058 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 04:02:04,210 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 04:02:04,622 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 04:02:05,104 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 04:02:05,813 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 04:02:05,843 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 04:02:05,878 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 04:03:05,022 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 04:03:05,282 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 04:03:05,787 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 04:03:06,717 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 04:03:06,735 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 04:03:06,780 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 04:03:39,854 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 04:03:40,438 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 04:03:40,563 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 04:03:41,569 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 04:03:41,623 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 04:03:41,630 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 04:03:48,907 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 04:03:49,092 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 04:03:49,350 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 04:03:53,514 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 04:03:53,668 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 04:03:53,781 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 04:05:00,378 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_memset with input of size 1408 for LOIs [2022-11-03 04:05:13,023 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_init_zalloc with input of size 114 for LOIs [2022-11-03 04:05:13,055 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-03 04:05:13,077 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-03 04:05:13,519 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.meminit with input of size 133 for LOIs [2022-11-03 04:05:13,530 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 135 for LOIs [2022-11-03 04:05:13,569 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 1408 for LOIs [2022-11-03 04:05:17,703 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:07:56,309 WARN L234 SmtUtils]: Spent 2.63m on a formula simplification. DAG size of input: 2004 DAG size of output: 1772 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:09:55,092 WARN L234 SmtUtils]: Spent 1.88m on a formula simplification. DAG size of input: 1478 DAG size of output: 1470 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)