./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a38de44f112a10364737c35b840e673503a211a020b9f494a50e4a32c8fe31c0 --- 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-8393723 [2022-11-18 19:49:15,510 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:49:15,514 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:49:15,539 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:49:15,540 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:49:15,544 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:49:15,547 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:49:15,551 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:49:15,555 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:49:15,557 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:49:15,558 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:49:15,559 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:49:15,560 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:49:15,561 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:49:15,562 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:49:15,564 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:49:15,564 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:49:15,565 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:49:15,567 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:49:15,569 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:49:15,571 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:49:15,572 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:49:15,573 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:49:15,574 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:49:15,578 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:49:15,579 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:49:15,579 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:49:15,580 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:49:15,581 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:49:15,582 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:49:15,582 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:49:15,583 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:49:15,584 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:49:15,585 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:49:15,586 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:49:15,586 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:49:15,587 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:49:15,587 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:49:15,588 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:49:15,589 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:49:15,596 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:49:15,597 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 19:49:15,633 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:49:15,636 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:49:15,638 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:49:15,638 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:49:15,640 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:49:15,640 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:49:15,641 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:49:15,641 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:49:15,641 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:49:15,642 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:49:15,643 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:49:15,643 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:49:15,643 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:49:15,644 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:49:15,644 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:49:15,644 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:49:15,644 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:49:15,645 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:49:15,645 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:49:15,645 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:49:15,645 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:49:15,646 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:49:15,646 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:49:15,646 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:49:15,646 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:49:15,647 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:49:15,647 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:49:15,647 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:49:15,648 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:49:15,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:49:15,648 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:49:15,648 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:49:15,649 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:49:15,649 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_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a38de44f112a10364737c35b840e673503a211a020b9f494a50e4a32c8fe31c0 [2022-11-18 19:49:15,951 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:49:15,972 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:49:15,975 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:49:15,976 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:49:15,977 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:49:15,978 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i [2022-11-18 19:49:16,079 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/data/6fdc4bd58/074b88d9d937423f8072cca4aaf76c71/FLAGbab301e0c [2022-11-18 19:49:16,694 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:49:16,697 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i [2022-11-18 19:49:16,710 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/data/6fdc4bd58/074b88d9d937423f8072cca4aaf76c71/FLAGbab301e0c [2022-11-18 19:49:16,956 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/data/6fdc4bd58/074b88d9d937423f8072cca4aaf76c71 [2022-11-18 19:49:16,958 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:49:16,959 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:49:16,961 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:49:16,963 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:49:16,966 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:49:16,967 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:49:16" (1/1) ... [2022-11-18 19:49:16,968 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ce384cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:49:16, skipping insertion in model container [2022-11-18 19:49:16,968 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:49:16" (1/1) ... [2022-11-18 19:49:16,976 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:49:17,035 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:49:17,447 WARN L234 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_a067f1be-b261-45aa-be61-06f010245558/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i[33822,33835] [2022-11-18 19:49:17,483 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:49:17,491 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:49:17,524 WARN L234 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_a067f1be-b261-45aa-be61-06f010245558/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i[33822,33835] [2022-11-18 19:49:17,549 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:49:17,601 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:49:17,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:49:17 WrapperNode [2022-11-18 19:49:17,601 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:49:17,603 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:49:17,603 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:49:17,604 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:49:17,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:49:17" (1/1) ... [2022-11-18 19:49:17,647 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:49:17" (1/1) ... [2022-11-18 19:49:17,688 INFO L138 Inliner]: procedures = 232, calls = 75, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 116 [2022-11-18 19:49:17,689 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:49:17,690 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:49:17,690 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:49:17,690 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:49:17,699 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:49:17" (1/1) ... [2022-11-18 19:49:17,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:49:17" (1/1) ... [2022-11-18 19:49:17,717 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:49:17" (1/1) ... [2022-11-18 19:49:17,718 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:49:17" (1/1) ... [2022-11-18 19:49:17,727 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:49:17" (1/1) ... [2022-11-18 19:49:17,749 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:49:17" (1/1) ... [2022-11-18 19:49:17,751 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:49:17" (1/1) ... [2022-11-18 19:49:17,753 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:49:17" (1/1) ... [2022-11-18 19:49:17,756 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:49:17,757 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:49:17,757 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:49:17,757 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:49:17,772 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:49:17" (1/1) ... [2022-11-18 19:49:17,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:49:17,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:49:17,805 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:49:17,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:49:17,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 19:49:17,856 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2022-11-18 19:49:17,856 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2022-11-18 19:49:17,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 19:49:17,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-18 19:49:17,856 INFO L130 BoogieDeclarations]: Found specification of procedure val_from_node [2022-11-18 19:49:17,857 INFO L138 BoogieDeclarations]: Found implementation of procedure val_from_node [2022-11-18 19:49:17,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 19:49:17,857 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2022-11-18 19:49:17,857 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2022-11-18 19:49:17,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 19:49:17,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 19:49:17,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:49:17,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 19:49:17,867 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-18 19:49:17,868 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-18 19:49:17,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:49:17,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:49:17,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:49:18,027 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:49:18,029 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:49:18,485 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:49:18,493 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:49:18,493 INFO L300 CfgBuilder]: Removed 41 assume(true) statements. [2022-11-18 19:49:18,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:49:18 BoogieIcfgContainer [2022-11-18 19:49:18,496 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:49:18,498 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:49:18,498 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:49:18,502 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:49:18,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:49:16" (1/3) ... [2022-11-18 19:49:18,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76a6b45b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:49:18, skipping insertion in model container [2022-11-18 19:49:18,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:49:17" (2/3) ... [2022-11-18 19:49:18,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76a6b45b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:49:18, skipping insertion in model container [2022-11-18 19:49:18,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:49:18" (3/3) ... [2022-11-18 19:49:18,505 INFO L112 eAbstractionObserver]: Analyzing ICFG bubble_sort_linux-1.i [2022-11-18 19:49:18,525 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:49:18,525 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 19:49:18,580 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:49:18,587 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=PETRI_NET, 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;@4ee09d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:49:18,587 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 19:49:18,592 INFO L276 IsEmpty]: Start isEmpty. Operand has 118 states, 89 states have (on average 1.7415730337078652) internal successors, (155), 108 states have internal predecessors, (155), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2022-11-18 19:49:18,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-18 19:49:18,599 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:49:18,600 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:49:18,601 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:49:18,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:49:18,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1761516263, now seen corresponding path program 1 times [2022-11-18 19:49:18,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:49:18,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125096354] [2022-11-18 19:49:18,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:49:18,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:49:18,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:18,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:49:18,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:49:18,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125096354] [2022-11-18 19:49:18,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125096354] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:49:18,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:49:18,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:49:18,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847985468] [2022-11-18 19:49:18,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:49:18,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 19:49:18,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:49:18,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 19:49:18,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 19:49:18,826 INFO L87 Difference]: Start difference. First operand has 118 states, 89 states have (on average 1.7415730337078652) internal successors, (155), 108 states have internal predecessors, (155), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:49:18,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:49:18,903 INFO L93 Difference]: Finished difference Result 230 states and 397 transitions. [2022-11-18 19:49:18,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 19:49:18,905 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-18 19:49:18,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:49:18,920 INFO L225 Difference]: With dead ends: 230 [2022-11-18 19:49:18,921 INFO L226 Difference]: Without dead ends: 107 [2022-11-18 19:49:18,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 19:49:18,934 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:49:18,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:49:18,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-11-18 19:49:18,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2022-11-18 19:49:18,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 82 states have (on average 1.2439024390243902) internal successors, (102), 97 states have internal predecessors, (102), 21 states have call successors, (21), 4 states have call predecessors, (21), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-18 19:49:19,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 128 transitions. [2022-11-18 19:49:19,009 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 128 transitions. Word has length 9 [2022-11-18 19:49:19,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:49:19,010 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 128 transitions. [2022-11-18 19:49:19,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:49:19,012 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 128 transitions. [2022-11-18 19:49:19,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-18 19:49:19,016 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:49:19,016 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:49:19,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:49:19,016 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:49:19,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:49:19,017 INFO L85 PathProgramCache]: Analyzing trace with hash 849043181, now seen corresponding path program 1 times [2022-11-18 19:49:19,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:49:19,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434702911] [2022-11-18 19:49:19,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:49:19,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:49:19,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:19,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 19:49:19,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:19,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:49:19,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:49:19,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434702911] [2022-11-18 19:49:19,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434702911] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:49:19,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:49:19,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 19:49:19,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737035660] [2022-11-18 19:49:19,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:49:19,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:49:19,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:49:19,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:49:19,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:49:19,499 INFO L87 Difference]: Start difference. First operand 107 states and 128 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:49:19,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:49:19,909 INFO L93 Difference]: Finished difference Result 109 states and 129 transitions. [2022-11-18 19:49:19,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:49:19,912 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2022-11-18 19:49:19,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:49:19,913 INFO L225 Difference]: With dead ends: 109 [2022-11-18 19:49:19,914 INFO L226 Difference]: Without dead ends: 106 [2022-11-18 19:49:19,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-18 19:49:19,915 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 242 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:49:19,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 133 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 19:49:19,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-11-18 19:49:19,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2022-11-18 19:49:19,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 82 states have (on average 1.2317073170731707) internal successors, (101), 96 states have internal predecessors, (101), 20 states have call successors, (20), 4 states have call predecessors, (20), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-18 19:49:19,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 126 transitions. [2022-11-18 19:49:19,933 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 126 transitions. Word has length 21 [2022-11-18 19:49:19,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:49:19,935 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 126 transitions. [2022-11-18 19:49:19,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:49:19,935 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 126 transitions. [2022-11-18 19:49:19,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-18 19:49:19,936 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:49:19,936 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:49:19,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 19:49:19,937 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:49:19,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:49:19,938 INFO L85 PathProgramCache]: Analyzing trace with hash 502050183, now seen corresponding path program 1 times [2022-11-18 19:49:19,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:49:19,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822673360] [2022-11-18 19:49:19,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:49:19,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:49:20,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:20,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 19:49:20,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:20,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:49:20,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:49:20,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822673360] [2022-11-18 19:49:20,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822673360] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:49:20,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:49:20,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 19:49:20,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076122798] [2022-11-18 19:49:20,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:49:20,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 19:49:20,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:49:20,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 19:49:20,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-11-18 19:49:20,975 INFO L87 Difference]: Start difference. First operand 106 states and 126 transitions. Second operand has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 7 states have internal predecessors, (20), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:49:22,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:49:22,112 INFO L93 Difference]: Finished difference Result 198 states and 235 transitions. [2022-11-18 19:49:22,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 19:49:22,113 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 7 states have internal predecessors, (20), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2022-11-18 19:49:22,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:49:22,117 INFO L225 Difference]: With dead ends: 198 [2022-11-18 19:49:22,117 INFO L226 Difference]: Without dead ends: 192 [2022-11-18 19:49:22,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2022-11-18 19:49:22,119 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 533 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 850 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 850 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-18 19:49:22,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [533 Valid, 157 Invalid, 969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 850 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-18 19:49:22,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2022-11-18 19:49:22,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 172. [2022-11-18 19:49:22,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 144 states have (on average 1.2430555555555556) internal successors, (179), 158 states have internal predecessors, (179), 23 states have call successors, (23), 6 states have call predecessors, (23), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-18 19:49:22,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 209 transitions. [2022-11-18 19:49:22,158 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 209 transitions. Word has length 24 [2022-11-18 19:49:22,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:49:22,158 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 209 transitions. [2022-11-18 19:49:22,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 7 states have internal predecessors, (20), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:49:22,159 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 209 transitions. [2022-11-18 19:49:22,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-18 19:49:22,160 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:49:22,160 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:49:22,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 19:49:22,161 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:49:22,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:49:22,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1234303898, now seen corresponding path program 1 times [2022-11-18 19:49:22,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:49:22,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270777334] [2022-11-18 19:49:22,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:49:22,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:49:22,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:23,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 19:49:23,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:23,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:49:23,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:49:23,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270777334] [2022-11-18 19:49:23,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270777334] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:49:23,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:49:23,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 19:49:23,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085904211] [2022-11-18 19:49:23,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:49:23,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 19:49:23,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:49:23,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 19:49:23,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-11-18 19:49:23,537 INFO L87 Difference]: Start difference. First operand 172 states and 209 transitions. Second operand has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 7 states have internal predecessors, (23), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:49:24,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:49:24,679 INFO L93 Difference]: Finished difference Result 274 states and 329 transitions. [2022-11-18 19:49:24,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 19:49:24,680 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 7 states have internal predecessors, (23), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2022-11-18 19:49:24,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:49:24,682 INFO L225 Difference]: With dead ends: 274 [2022-11-18 19:49:24,682 INFO L226 Difference]: Without dead ends: 271 [2022-11-18 19:49:24,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2022-11-18 19:49:24,684 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 322 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 951 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 951 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-18 19:49:24,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 225 Invalid, 998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 951 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-18 19:49:24,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2022-11-18 19:49:24,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 253. [2022-11-18 19:49:24,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 218 states have (on average 1.238532110091743) internal successors, (270), 233 states have internal predecessors, (270), 28 states have call successors, (28), 8 states have call predecessors, (28), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-18 19:49:24,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 309 transitions. [2022-11-18 19:49:24,733 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 309 transitions. Word has length 27 [2022-11-18 19:49:24,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:49:24,733 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 309 transitions. [2022-11-18 19:49:24,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 7 states have internal predecessors, (23), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:49:24,734 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 309 transitions. [2022-11-18 19:49:24,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-18 19:49:24,735 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:49:24,735 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:49:24,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 19:49:24,736 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:49:24,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:49:24,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1680148119, now seen corresponding path program 1 times [2022-11-18 19:49:24,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:49:24,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021353759] [2022-11-18 19:49:24,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:49:24,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:49:24,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:25,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 19:49:25,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:26,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:49:26,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:49:26,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021353759] [2022-11-18 19:49:26,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021353759] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:49:26,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:49:26,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 19:49:26,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010596214] [2022-11-18 19:49:26,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:49:26,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 19:49:26,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:49:26,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 19:49:26,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-11-18 19:49:26,081 INFO L87 Difference]: Start difference. First operand 253 states and 309 transitions. Second operand has 13 states, 13 states have (on average 2.0) internal successors, (26), 9 states have internal predecessors, (26), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:49:27,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:49:27,487 INFO L93 Difference]: Finished difference Result 273 states and 327 transitions. [2022-11-18 19:49:27,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 19:49:27,487 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.0) internal successors, (26), 9 states have internal predecessors, (26), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2022-11-18 19:49:27,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:49:27,489 INFO L225 Difference]: With dead ends: 273 [2022-11-18 19:49:27,489 INFO L226 Difference]: Without dead ends: 270 [2022-11-18 19:49:27,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=308, Unknown=0, NotChecked=0, Total=380 [2022-11-18 19:49:27,491 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 354 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 1191 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 1234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:49:27,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 295 Invalid, 1234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1191 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-18 19:49:27,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2022-11-18 19:49:27,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 253. [2022-11-18 19:49:27,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 218 states have (on average 1.2339449541284404) internal successors, (269), 233 states have internal predecessors, (269), 28 states have call successors, (28), 8 states have call predecessors, (28), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-18 19:49:27,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 308 transitions. [2022-11-18 19:49:27,536 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 308 transitions. Word has length 30 [2022-11-18 19:49:27,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:49:27,536 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 308 transitions. [2022-11-18 19:49:27,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.0) internal successors, (26), 9 states have internal predecessors, (26), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:49:27,537 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 308 transitions. [2022-11-18 19:49:27,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-18 19:49:27,538 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:49:27,538 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:49:27,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 19:49:27,538 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:49:27,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:49:27,539 INFO L85 PathProgramCache]: Analyzing trace with hash -493122043, now seen corresponding path program 1 times [2022-11-18 19:49:27,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:49:27,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530156379] [2022-11-18 19:49:27,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:49:27,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:49:27,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:28,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 19:49:28,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:29,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:49:29,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:49:29,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530156379] [2022-11-18 19:49:29,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530156379] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:49:29,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:49:29,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-18 19:49:29,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414001558] [2022-11-18 19:49:29,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:49:29,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-18 19:49:29,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:49:29,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-18 19:49:29,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-11-18 19:49:29,360 INFO L87 Difference]: Start difference. First operand 253 states and 308 transitions. Second operand has 14 states, 14 states have (on average 2.0714285714285716) internal successors, (29), 10 states have internal predecessors, (29), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:49:30,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:49:30,833 INFO L93 Difference]: Finished difference Result 272 states and 325 transitions. [2022-11-18 19:49:30,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 19:49:30,833 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.0714285714285716) internal successors, (29), 10 states have internal predecessors, (29), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 33 [2022-11-18 19:49:30,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:49:30,835 INFO L225 Difference]: With dead ends: 272 [2022-11-18 19:49:30,835 INFO L226 Difference]: Without dead ends: 269 [2022-11-18 19:49:30,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=89, Invalid=373, Unknown=0, NotChecked=0, Total=462 [2022-11-18 19:49:30,837 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 357 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 1090 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 1132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1090 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:49:30,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 271 Invalid, 1132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1090 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-18 19:49:30,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2022-11-18 19:49:30,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 253. [2022-11-18 19:49:30,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 218 states have (on average 1.2293577981651376) internal successors, (268), 233 states have internal predecessors, (268), 28 states have call successors, (28), 8 states have call predecessors, (28), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-18 19:49:30,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 307 transitions. [2022-11-18 19:49:30,886 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 307 transitions. Word has length 33 [2022-11-18 19:49:30,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:49:30,886 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 307 transitions. [2022-11-18 19:49:30,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.0714285714285716) internal successors, (29), 10 states have internal predecessors, (29), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:49:30,887 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 307 transitions. [2022-11-18 19:49:30,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-18 19:49:30,893 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:49:30,894 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:49:30,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 19:49:30,895 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:49:30,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:49:30,895 INFO L85 PathProgramCache]: Analyzing trace with hash -2033122620, now seen corresponding path program 1 times [2022-11-18 19:49:30,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:49:30,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805064374] [2022-11-18 19:49:30,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:49:30,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:49:30,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:32,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 19:49:32,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:32,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:49:32,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:49:32,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805064374] [2022-11-18 19:49:32,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805064374] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:49:32,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:49:32,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-18 19:49:32,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425159371] [2022-11-18 19:49:32,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:49:32,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:49:32,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:49:32,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:49:32,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:49:32,701 INFO L87 Difference]: Start difference. First operand 253 states and 307 transitions. Second operand has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 8 states have internal predecessors, (32), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:49:34,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:49:34,058 INFO L93 Difference]: Finished difference Result 271 states and 323 transitions. [2022-11-18 19:49:34,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 19:49:34,059 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 8 states have internal predecessors, (32), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2022-11-18 19:49:34,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:49:34,061 INFO L225 Difference]: With dead ends: 271 [2022-11-18 19:49:34,061 INFO L226 Difference]: Without dead ends: 268 [2022-11-18 19:49:34,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2022-11-18 19:49:34,062 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 348 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 1054 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 1095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1054 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:49:34,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 249 Invalid, 1095 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1054 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-18 19:49:34,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2022-11-18 19:49:34,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 253. [2022-11-18 19:49:34,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 218 states have (on average 1.224770642201835) internal successors, (267), 233 states have internal predecessors, (267), 28 states have call successors, (28), 8 states have call predecessors, (28), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-18 19:49:34,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 306 transitions. [2022-11-18 19:49:34,110 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 306 transitions. Word has length 36 [2022-11-18 19:49:34,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:49:34,110 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 306 transitions. [2022-11-18 19:49:34,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 8 states have internal predecessors, (32), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:49:34,111 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 306 transitions. [2022-11-18 19:49:34,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-18 19:49:34,112 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:49:34,112 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:49:34,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 19:49:34,113 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:49:34,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:49:34,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1335339115, now seen corresponding path program 1 times [2022-11-18 19:49:34,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:49:34,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027596282] [2022-11-18 19:49:34,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:49:34,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:49:34,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:35,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 19:49:35,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:35,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:49:35,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:49:35,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027596282] [2022-11-18 19:49:35,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027596282] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:49:35,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:49:35,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-18 19:49:35,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016116192] [2022-11-18 19:49:35,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:49:35,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:49:35,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:49:35,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:49:35,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:49:35,280 INFO L87 Difference]: Start difference. First operand 253 states and 306 transitions. Second operand has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 8 states have internal predecessors, (35), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:49:36,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:49:36,556 INFO L93 Difference]: Finished difference Result 270 states and 321 transitions. [2022-11-18 19:49:36,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-18 19:49:36,557 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 8 states have internal predecessors, (35), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2022-11-18 19:49:36,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:49:36,558 INFO L225 Difference]: With dead ends: 270 [2022-11-18 19:49:36,558 INFO L226 Difference]: Without dead ends: 267 [2022-11-18 19:49:36,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=104, Invalid=448, Unknown=0, NotChecked=0, Total=552 [2022-11-18 19:49:36,560 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 424 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 992 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 992 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-18 19:49:36,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 250 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 992 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-18 19:49:36,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2022-11-18 19:49:36,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 253. [2022-11-18 19:49:36,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 218 states have (on average 1.2201834862385321) internal successors, (266), 233 states have internal predecessors, (266), 28 states have call successors, (28), 8 states have call predecessors, (28), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-18 19:49:36,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 305 transitions. [2022-11-18 19:49:36,622 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 305 transitions. Word has length 39 [2022-11-18 19:49:36,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:49:36,624 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 305 transitions. [2022-11-18 19:49:36,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 8 states have internal predecessors, (35), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:49:36,626 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 305 transitions. [2022-11-18 19:49:36,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-18 19:49:36,628 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:49:36,628 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-18 19:49:36,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 19:49:36,629 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:49:36,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:49:36,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1154705564, now seen corresponding path program 1 times [2022-11-18 19:49:36,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:49:36,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722507912] [2022-11-18 19:49:36,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:49:36,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:49:36,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:37,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 19:49:37,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:38,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 19:49:38,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:38,409 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:49:38,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:49:38,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722507912] [2022-11-18 19:49:38,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722507912] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:49:38,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2116737445] [2022-11-18 19:49:38,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:49:38,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:49:38,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:49:38,415 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:49:38,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 19:49:38,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:38,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 142 conjunts are in the unsatisfiable core [2022-11-18 19:49:38,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:49:38,845 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-18 19:49:38,846 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-18 19:49:38,969 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-18 19:49:38,969 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 14 treesize of output 20 [2022-11-18 19:49:38,982 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 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 [2022-11-18 19:49:39,001 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 19:49:39,002 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 21 treesize of output 21 [2022-11-18 19:49:39,056 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-18 19:49:39,066 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 19:49:39,284 INFO L321 Elim1Store]: treesize reduction 77, result has 3.8 percent of original size [2022-11-18 19:49:39,285 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 61 treesize of output 82 [2022-11-18 19:49:39,301 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 133 treesize of output 105 [2022-11-18 19:49:39,308 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 78 [2022-11-18 19:49:39,407 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:39,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:49:39,412 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 26 treesize of output 28 [2022-11-18 19:49:39,417 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 24 [2022-11-18 19:49:39,582 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-18 19:49:39,583 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-18 19:49:39,658 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 28 treesize of output 26 [2022-11-18 19:49:39,681 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 8 [2022-11-18 19:49:39,886 INFO L321 Elim1Store]: treesize reduction 177, result has 36.1 percent of original size [2022-11-18 19:49:39,887 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 258 treesize of output 397 [2022-11-18 19:49:39,905 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 treesize of output 7 [2022-11-18 19:49:39,923 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 treesize of output 7 [2022-11-18 19:49:39,940 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 treesize of output 7 [2022-11-18 19:49:40,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:49:40,736 INFO L321 Elim1Store]: treesize reduction 139, result has 22.3 percent of original size [2022-11-18 19:49:40,737 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 747 treesize of output 805 [2022-11-18 19:49:40,815 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 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 [2022-11-18 19:49:40,890 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 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 [2022-11-18 19:49:40,931 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 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 [2022-11-18 19:49:41,140 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:41,146 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 11 [2022-11-18 19:49:41,163 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 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 [2022-11-18 19:49:42,301 INFO L321 Elim1Store]: treesize reduction 54, result has 23.9 percent of original size [2022-11-18 19:49:42,302 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 606 treesize of output 436 [2022-11-18 19:49:42,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:49:42,334 INFO L321 Elim1Store]: treesize reduction 38, result has 19.1 percent of original size [2022-11-18 19:49:42,335 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 580 treesize of output 507 [2022-11-18 19:49:42,347 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 494 treesize of output 416 [2022-11-18 19:49:42,362 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 19:49:42,561 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-18 19:49:42,562 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 385 treesize of output 351 [2022-11-18 19:49:42,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:49:42,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:49:42,598 INFO L321 Elim1Store]: treesize reduction 37, result has 36.2 percent of original size [2022-11-18 19:49:42,599 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 87 treesize of output 92 [2022-11-18 19:49:42,908 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 19:49:42,986 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-11-18 19:49:43,041 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:49:43,042 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:49:43,268 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1029 (Array Int Int))) (not (= |c_~#gl_list~0.base| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_1029) |c_~#gl_list~0.base|) (+ |c_~#gl_list~0.offset| 4))))) is different from false [2022-11-18 19:49:43,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2116737445] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:49:43,746 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:49:43,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 17] total 29 [2022-11-18 19:49:43,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060296524] [2022-11-18 19:49:43,747 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:49:43,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-11-18 19:49:43,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:49:43,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-11-18 19:49:43,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=1070, Unknown=25, NotChecked=66, Total=1260 [2022-11-18 19:49:43,749 INFO L87 Difference]: Start difference. First operand 253 states and 305 transitions. Second operand has 30 states, 30 states have (on average 2.1666666666666665) internal successors, (65), 20 states have internal predecessors, (65), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-18 19:49:49,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:49:49,982 INFO L93 Difference]: Finished difference Result 497 states and 584 transitions. [2022-11-18 19:49:49,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-18 19:49:49,987 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 2.1666666666666665) internal successors, (65), 20 states have internal predecessors, (65), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 40 [2022-11-18 19:49:49,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:49:49,991 INFO L225 Difference]: With dead ends: 497 [2022-11-18 19:49:49,992 INFO L226 Difference]: Without dead ends: 488 [2022-11-18 19:49:49,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 38 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 631 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=386, Invalid=3107, Unknown=51, NotChecked=116, Total=3660 [2022-11-18 19:49:49,994 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 1040 mSDsluCounter, 663 mSDsCounter, 0 mSdLazyCounter, 2777 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1044 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 4262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 2777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1361 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-18 19:49:49,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1044 Valid, 703 Invalid, 4262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 2777 Invalid, 0 Unknown, 1361 Unchecked, 2.5s Time] [2022-11-18 19:49:49,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2022-11-18 19:49:50,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 366. [2022-11-18 19:49:50,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 323 states have (on average 1.2012383900928794) internal successors, (388), 337 states have internal predecessors, (388), 33 states have call successors, (33), 13 states have call predecessors, (33), 9 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-18 19:49:50,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 436 transitions. [2022-11-18 19:49:50,064 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 436 transitions. Word has length 40 [2022-11-18 19:49:50,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:49:50,065 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 436 transitions. [2022-11-18 19:49:50,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 2.1666666666666665) internal successors, (65), 20 states have internal predecessors, (65), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-18 19:49:50,065 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 436 transitions. [2022-11-18 19:49:50,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-18 19:49:50,066 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:49:50,066 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:49:50,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 19:49:50,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:49:50,273 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:49:50,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:49:50,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1293265745, now seen corresponding path program 1 times [2022-11-18 19:49:50,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:49:50,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908208863] [2022-11-18 19:49:50,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:49:50,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:49:50,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:51,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 19:49:51,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:51,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:49:51,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:49:51,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908208863] [2022-11-18 19:49:51,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908208863] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:49:51,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:49:51,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 19:49:51,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091908228] [2022-11-18 19:49:51,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:49:51,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 19:49:51,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:49:51,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 19:49:51,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-11-18 19:49:51,736 INFO L87 Difference]: Start difference. First operand 366 states and 436 transitions. Second operand has 13 states, 13 states have (on average 2.923076923076923) internal successors, (38), 9 states have internal predecessors, (38), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:49:53,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:49:53,327 INFO L93 Difference]: Finished difference Result 408 states and 484 transitions. [2022-11-18 19:49:53,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-18 19:49:53,328 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.923076923076923) internal successors, (38), 9 states have internal predecessors, (38), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2022-11-18 19:49:53,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:49:53,330 INFO L225 Difference]: With dead ends: 408 [2022-11-18 19:49:53,330 INFO L226 Difference]: Without dead ends: 405 [2022-11-18 19:49:53,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=93, Invalid=413, Unknown=0, NotChecked=0, Total=506 [2022-11-18 19:49:53,331 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 379 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 1192 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 1232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:49:53,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 295 Invalid, 1232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1192 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-18 19:49:53,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2022-11-18 19:49:53,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 369. [2022-11-18 19:49:53,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 326 states have (on average 1.196319018404908) internal successors, (390), 340 states have internal predecessors, (390), 33 states have call successors, (33), 13 states have call predecessors, (33), 9 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-18 19:49:53,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 438 transitions. [2022-11-18 19:49:53,409 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 438 transitions. Word has length 42 [2022-11-18 19:49:53,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:49:53,409 INFO L495 AbstractCegarLoop]: Abstraction has 369 states and 438 transitions. [2022-11-18 19:49:53,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.923076923076923) internal successors, (38), 9 states have internal predecessors, (38), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:49:53,409 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 438 transitions. [2022-11-18 19:49:53,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-18 19:49:53,410 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:49:53,410 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-18 19:49:53,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 19:49:53,411 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:49:53,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:49:53,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1188127317, now seen corresponding path program 1 times [2022-11-18 19:49:53,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:49:53,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704203333] [2022-11-18 19:49:53,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:49:53,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:49:53,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:54,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 19:49:54,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:55,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 19:49:55,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:55,361 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:49:55,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:49:55,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704203333] [2022-11-18 19:49:55,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704203333] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:49:55,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1686241850] [2022-11-18 19:49:55,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:49:55,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:49:55,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:49:55,364 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:49:55,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 19:49:55,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:55,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 167 conjunts are in the unsatisfiable core [2022-11-18 19:49:55,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:49:55,708 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-18 19:49:55,708 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-18 19:49:55,796 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 23 treesize of output 23 [2022-11-18 19:49:55,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:49:55,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-18 19:49:55,922 INFO L321 Elim1Store]: treesize reduction 69, result has 33.0 percent of original size [2022-11-18 19:49:55,922 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 100 [2022-11-18 19:49:55,934 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 91 [2022-11-18 19:49:56,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:49:56,188 INFO L321 Elim1Store]: treesize reduction 44, result has 38.0 percent of original size [2022-11-18 19:49:56,188 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 153 treesize of output 121 [2022-11-18 19:49:56,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:49:56,198 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 50 treesize of output 43 [2022-11-18 19:49:56,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:49:56,229 INFO L321 Elim1Store]: treesize reduction 30, result has 40.0 percent of original size [2022-11-18 19:49:56,229 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 55 [2022-11-18 19:49:58,437 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 19:49:58,437 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 141 treesize of output 124 [2022-11-18 19:49:58,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:49:58,447 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 79 treesize of output 79 [2022-11-18 19:49:58,465 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-18 19:49:58,465 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 26 [2022-11-18 19:49:58,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:49:58,477 INFO L350 Elim1Store]: Elim1 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 16 treesize of output 20 [2022-11-18 19:49:58,650 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-18 19:49:58,650 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-18 19:49:58,758 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 48 treesize of output 44 [2022-11-18 19:49:58,764 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 40 treesize of output 42 [2022-11-18 19:49:58,798 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 27 [2022-11-18 19:49:58,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:49:58,803 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 16 [2022-11-18 19:49:59,080 INFO L321 Elim1Store]: treesize reduction 61, result has 19.7 percent of original size [2022-11-18 19:49:59,080 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 137 treesize of output 148 [2022-11-18 19:49:59,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:49:59,097 INFO L321 Elim1Store]: treesize reduction 51, result has 1.9 percent of original size [2022-11-18 19:49:59,098 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 162 treesize of output 113 [2022-11-18 19:49:59,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:49:59,103 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 84 [2022-11-18 19:49:59,112 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 59 [2022-11-18 19:49:59,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:49:59,130 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-18 19:49:59,130 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 57 [2022-11-18 19:49:59,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:49:59,141 INFO L350 Elim1Store]: Elim1 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 36 treesize of output 40 [2022-11-18 19:49:59,271 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 52 treesize of output 50 [2022-11-18 19:49:59,287 INFO L321 Elim1Store]: treesize reduction 37, result has 36.2 percent of original size [2022-11-18 19:49:59,288 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 72 [2022-11-18 19:49:59,699 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 18 [2022-11-18 19:49:59,703 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-11-18 19:49:59,746 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:49:59,746 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:50:00,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1686241850] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:50:00,610 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:50:00,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 28 [2022-11-18 19:50:00,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804823749] [2022-11-18 19:50:00,611 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:50:00,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-11-18 19:50:00,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:50:00,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-11-18 19:50:00,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=1062, Unknown=11, NotChecked=0, Total=1190 [2022-11-18 19:50:00,613 INFO L87 Difference]: Start difference. First operand 369 states and 438 transitions. Second operand has 29 states, 29 states have (on average 2.5172413793103448) internal successors, (73), 19 states have internal predecessors, (73), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-18 19:50:04,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:50:04,949 INFO L93 Difference]: Finished difference Result 465 states and 550 transitions. [2022-11-18 19:50:04,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-18 19:50:04,951 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.5172413793103448) internal successors, (73), 19 states have internal predecessors, (73), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 43 [2022-11-18 19:50:04,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:50:04,953 INFO L225 Difference]: With dead ends: 465 [2022-11-18 19:50:04,953 INFO L226 Difference]: Without dead ends: 462 [2022-11-18 19:50:04,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 425 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=318, Invalid=2419, Unknown=19, NotChecked=0, Total=2756 [2022-11-18 19:50:04,955 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 1122 mSDsluCounter, 769 mSDsCounter, 0 mSdLazyCounter, 3034 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1122 SdHoareTripleChecker+Valid, 823 SdHoareTripleChecker+Invalid, 3827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 3034 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 619 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-18 19:50:04,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1122 Valid, 823 Invalid, 3827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 3034 Invalid, 0 Unknown, 619 Unchecked, 2.6s Time] [2022-11-18 19:50:04,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2022-11-18 19:50:05,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 372. [2022-11-18 19:50:05,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 329 states have (on average 1.1914893617021276) internal successors, (392), 343 states have internal predecessors, (392), 33 states have call successors, (33), 13 states have call predecessors, (33), 9 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-18 19:50:05,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 440 transitions. [2022-11-18 19:50:05,026 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 440 transitions. Word has length 43 [2022-11-18 19:50:05,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:50:05,026 INFO L495 AbstractCegarLoop]: Abstraction has 372 states and 440 transitions. [2022-11-18 19:50:05,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.5172413793103448) internal successors, (73), 19 states have internal predecessors, (73), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-18 19:50:05,027 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 440 transitions. [2022-11-18 19:50:05,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-18 19:50:05,029 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:50:05,029 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:50:05,039 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-18 19:50:05,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:50:05,235 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:50:05,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:50:05,236 INFO L85 PathProgramCache]: Analyzing trace with hash -2001574846, now seen corresponding path program 1 times [2022-11-18 19:50:05,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:50:05,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520464226] [2022-11-18 19:50:05,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:50:05,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:50:05,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:06,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 19:50:06,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:06,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:50:06,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:50:06,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520464226] [2022-11-18 19:50:06,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520464226] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:50:06,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:50:06,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 19:50:06,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103563031] [2022-11-18 19:50:06,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:50:06,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 19:50:06,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:50:06,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 19:50:06,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-11-18 19:50:06,562 INFO L87 Difference]: Start difference. First operand 372 states and 440 transitions. Second operand has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 9 states have internal predecessors, (41), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:50:08,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:50:08,179 INFO L93 Difference]: Finished difference Result 410 states and 483 transitions. [2022-11-18 19:50:08,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-18 19:50:08,179 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 9 states have internal predecessors, (41), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 45 [2022-11-18 19:50:08,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:50:08,182 INFO L225 Difference]: With dead ends: 410 [2022-11-18 19:50:08,182 INFO L226 Difference]: Without dead ends: 407 [2022-11-18 19:50:08,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=93, Invalid=413, Unknown=0, NotChecked=0, Total=506 [2022-11-18 19:50:08,183 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 371 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 1192 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 1230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:50:08,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [371 Valid, 295 Invalid, 1230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1192 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-18 19:50:08,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2022-11-18 19:50:08,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 375. [2022-11-18 19:50:08,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 332 states have (on average 1.1867469879518073) internal successors, (394), 346 states have internal predecessors, (394), 33 states have call successors, (33), 13 states have call predecessors, (33), 9 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-18 19:50:08,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 442 transitions. [2022-11-18 19:50:08,280 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 442 transitions. Word has length 45 [2022-11-18 19:50:08,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:50:08,280 INFO L495 AbstractCegarLoop]: Abstraction has 375 states and 442 transitions. [2022-11-18 19:50:08,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 9 states have internal predecessors, (41), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:50:08,281 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 442 transitions. [2022-11-18 19:50:08,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-18 19:50:08,281 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:50:08,282 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-18 19:50:08,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 19:50:08,282 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:50:08,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:50:08,283 INFO L85 PathProgramCache]: Analyzing trace with hash 438546823, now seen corresponding path program 1 times [2022-11-18 19:50:08,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:50:08,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650019901] [2022-11-18 19:50:08,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:50:08,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:50:08,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:10,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 19:50:10,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:10,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 19:50:10,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:11,272 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:50:11,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:50:11,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650019901] [2022-11-18 19:50:11,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650019901] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:50:11,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [49529569] [2022-11-18 19:50:11,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:50:11,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:50:11,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:50:11,275 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:50:11,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 19:50:11,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:11,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 199 conjunts are in the unsatisfiable core [2022-11-18 19:50:11,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:50:11,673 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-18 19:50:11,673 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-18 19:50:11,784 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 23 treesize of output 23 [2022-11-18 19:50:11,806 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 23 treesize of output 23 [2022-11-18 19:50:11,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:50:11,825 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-18 19:50:11,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:50:11,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-18 19:50:12,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:50:12,146 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:50:12,150 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-18 19:50:12,151 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 166 treesize of output 115 [2022-11-18 19:50:12,159 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 88 [2022-11-18 19:50:12,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:50:12,170 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 33 treesize of output 28 [2022-11-18 19:50:12,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:50:12,182 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 38 [2022-11-18 19:50:12,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:50:12,204 INFO L321 Elim1Store]: treesize reduction 48, result has 18.6 percent of original size [2022-11-18 19:50:12,205 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 56 treesize of output 52 [2022-11-18 19:50:12,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:50:12,214 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 23 [2022-11-18 19:50:12,225 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 19 [2022-11-18 19:50:12,350 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 19:50:12,351 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 77 treesize of output 68 [2022-11-18 19:50:12,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:50:12,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:50:12,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:50:12,368 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:50:12,373 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-18 19:50:12,373 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 63 [2022-11-18 19:50:12,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:50:12,619 INFO L321 Elim1Store]: treesize reduction 8, result has 61.9 percent of original size [2022-11-18 19:50:12,619 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 22 [2022-11-18 19:50:12,770 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 72 treesize of output 62 [2022-11-18 19:50:12,782 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-18 19:50:12,782 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 60 treesize of output 47 [2022-11-18 19:50:12,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:50:12,807 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 32 [2022-11-18 19:50:12,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:50:12,812 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:50:12,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:50:12,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:50:12,818 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-18 19:50:12,819 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 38 treesize of output 20 [2022-11-18 19:50:13,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:50:13,091 INFO L321 Elim1Store]: treesize reduction 54, result has 23.9 percent of original size [2022-11-18 19:50:13,091 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 172 treesize of output 118 [2022-11-18 19:50:13,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:50:13,122 INFO L321 Elim1Store]: treesize reduction 42, result has 10.6 percent of original size [2022-11-18 19:50:13,122 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 146 treesize of output 127 [2022-11-18 19:50:13,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:50:13,133 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 98 [2022-11-18 19:50:13,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:50:13,161 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:50:13,236 INFO L321 Elim1Store]: treesize reduction 124, result has 38.6 percent of original size [2022-11-18 19:50:13,237 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 123 treesize of output 125 [2022-11-18 19:50:13,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:50:13,259 INFO L321 Elim1Store]: treesize reduction 50, result has 18.0 percent of original size [2022-11-18 19:50:13,260 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 107 treesize of output 75 [2022-11-18 19:50:13,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:50:13,340 INFO L350 Elim1Store]: Elim1 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 16 treesize of output 20 [2022-11-18 19:50:13,606 INFO L321 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2022-11-18 19:50:13,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 339 treesize of output 268 [2022-11-18 19:50:13,623 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-18 19:50:13,624 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 316 treesize of output 209 [2022-11-18 19:50:16,630 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:50:16,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:50:16,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:50:16,689 INFO L321 Elim1Store]: treesize reduction 55, result has 43.3 percent of original size [2022-11-18 19:50:16,689 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 10 disjoint index pairs (out of 28 index pairs), introduced 9 new quantified variables, introduced 27 case distinctions, treesize of input 291 treesize of output 193 [2022-11-18 19:50:16,757 INFO L321 Elim1Store]: treesize reduction 37, result has 50.7 percent of original size [2022-11-18 19:50:16,757 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 8 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 156 treesize of output 119 [2022-11-18 19:50:18,049 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:50:18,049 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:50:18,450 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2006 (Array Int Int)) (v_ArrVal_2005 (Array Int Int))) (let ((.cse0 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2006)) (.cse3 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2005)) (.cse4 (+ |c_~#gl_list~0.offset| 4))) (let ((.cse1 (select (select .cse3 |c_~#gl_list~0.base|) .cse4)) (.cse2 (select (select .cse0 |c_~#gl_list~0.base|) .cse4))) (or (not (= (select (select .cse0 .cse1) .cse2) .cse2)) (not (= .cse1 (select (select .cse3 .cse1) .cse2))))))) is different from false [2022-11-18 19:50:19,005 WARN L837 $PredicateComparison]: unable to prove that (forall ((|v_list_add___list_add_~next#1.offset_11| Int) (v_ArrVal_2006 (Array Int Int)) (v_ArrVal_2005 (Array Int Int)) (v_ArrVal_2035 Int) (v_ArrVal_2036 (Array Int Int)) (v_ArrVal_2034 (Array Int Int)) (v_ArrVal_2033 (Array Int Int)) (v_ArrVal_2032 (Array Int Int))) (let ((.cse6 (select (select |c_#memory_$Pointer$.base| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)) (.cse7 (+ |v_list_add___list_add_~next#1.offset_11| 4))) (let ((.cse1 (store (let ((.cse8 (store |c_#memory_$Pointer$.offset| .cse6 (store (select |c_#memory_$Pointer$.offset| .cse6) .cse7 (+ |c_ULTIMATE.start_gl_insert_~node~1#1.offset| 4))))) (store (store .cse8 |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2036) |c_~#gl_list~0.base| (store (select (store .cse8 |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2032) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset| v_ArrVal_2035))) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2006)) (.cse3 (store (let ((.cse5 (store |c_#memory_$Pointer$.base| .cse6 (store (select |c_#memory_$Pointer$.base| .cse6) .cse7 |c_ULTIMATE.start_gl_insert_~node~1#1.base|)))) (store (store .cse5 |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2033) |c_~#gl_list~0.base| (store (select (store .cse5 |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2034) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset| |c_ULTIMATE.start_gl_insert_~node~1#1.base|))) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2005)) (.cse4 (+ |c_~#gl_list~0.offset| 4))) (let ((.cse2 (select (select .cse3 |c_~#gl_list~0.base|) .cse4)) (.cse0 (select (select .cse1 |c_~#gl_list~0.base|) .cse4))) (or (not (= .cse0 (select (select .cse1 .cse2) .cse0))) (not (= .cse2 (select (select .cse3 .cse2) .cse0)))))))) is different from false [2022-11-18 19:50:19,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [49529569] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:50:19,008 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:50:19,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16] total 30 [2022-11-18 19:50:19,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525809982] [2022-11-18 19:50:19,009 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:50:19,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-11-18 19:50:19,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:50:19,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-11-18 19:50:19,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=1155, Unknown=2, NotChecked=138, Total=1406 [2022-11-18 19:50:19,011 INFO L87 Difference]: Start difference. First operand 375 states and 442 transitions. Second operand has 31 states, 31 states have (on average 2.5483870967741935) internal successors, (79), 21 states have internal predecessors, (79), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-18 19:50:24,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:50:24,544 INFO L93 Difference]: Finished difference Result 415 states and 486 transitions. [2022-11-18 19:50:24,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-18 19:50:24,545 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 2.5483870967741935) internal successors, (79), 21 states have internal predecessors, (79), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 46 [2022-11-18 19:50:24,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:50:24,551 INFO L225 Difference]: With dead ends: 415 [2022-11-18 19:50:24,551 INFO L226 Difference]: Without dead ends: 412 [2022-11-18 19:50:24,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 52 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 540 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=277, Invalid=2589, Unknown=4, NotChecked=210, Total=3080 [2022-11-18 19:50:24,553 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 614 mSDsluCounter, 699 mSDsCounter, 0 mSdLazyCounter, 1745 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 614 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 2870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1037 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-18 19:50:24,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [614 Valid, 744 Invalid, 2870 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1745 Invalid, 0 Unknown, 1037 Unchecked, 1.8s Time] [2022-11-18 19:50:24,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2022-11-18 19:50:24,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 375. [2022-11-18 19:50:24,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 332 states have (on average 1.1837349397590362) internal successors, (393), 346 states have internal predecessors, (393), 33 states have call successors, (33), 13 states have call predecessors, (33), 9 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-18 19:50:24,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 441 transitions. [2022-11-18 19:50:24,646 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 441 transitions. Word has length 46 [2022-11-18 19:50:24,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:50:24,646 INFO L495 AbstractCegarLoop]: Abstraction has 375 states and 441 transitions. [2022-11-18 19:50:24,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 2.5483870967741935) internal successors, (79), 21 states have internal predecessors, (79), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-18 19:50:24,647 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 441 transitions. [2022-11-18 19:50:24,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-18 19:50:24,647 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:50:24,647 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:50:24,655 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-18 19:50:24,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-18 19:50:24,848 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:50:24,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:50:24,848 INFO L85 PathProgramCache]: Analyzing trace with hash -2049301828, now seen corresponding path program 1 times [2022-11-18 19:50:24,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:50:24,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306539244] [2022-11-18 19:50:24,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:50:24,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:50:24,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:24,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 19:50:24,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:24,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:50:24,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:50:24,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306539244] [2022-11-18 19:50:24,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306539244] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:50:24,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:50:24,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 19:50:24,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074036678] [2022-11-18 19:50:24,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:50:24,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:50:24,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:50:24,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:50:24,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:50:24,934 INFO L87 Difference]: Start difference. First operand 375 states and 441 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:50:25,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:50:25,359 INFO L93 Difference]: Finished difference Result 377 states and 442 transitions. [2022-11-18 19:50:25,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:50:25,360 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2022-11-18 19:50:25,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:50:25,362 INFO L225 Difference]: With dead ends: 377 [2022-11-18 19:50:25,362 INFO L226 Difference]: Without dead ends: 374 [2022-11-18 19:50:25,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-18 19:50:25,363 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 106 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:50:25,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 174 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 19:50:25,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2022-11-18 19:50:25,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 374. [2022-11-18 19:50:25,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 332 states have (on average 1.1716867469879517) internal successors, (389), 345 states have internal predecessors, (389), 32 states have call successors, (32), 13 states have call predecessors, (32), 9 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-18 19:50:25,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 436 transitions. [2022-11-18 19:50:25,477 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 436 transitions. Word has length 48 [2022-11-18 19:50:25,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:50:25,477 INFO L495 AbstractCegarLoop]: Abstraction has 374 states and 436 transitions. [2022-11-18 19:50:25,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:50:25,478 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 436 transitions. [2022-11-18 19:50:25,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-18 19:50:25,478 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:50:25,479 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-18 19:50:25,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 19:50:25,479 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:50:25,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:50:25,480 INFO L85 PathProgramCache]: Analyzing trace with hash -764602366, now seen corresponding path program 1 times [2022-11-18 19:50:25,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:50:25,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125781326] [2022-11-18 19:50:25,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:50:25,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:50:25,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:27,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 19:50:27,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:28,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 19:50:28,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:28,410 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:50:28,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:50:28,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125781326] [2022-11-18 19:50:28,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125781326] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:50:28,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [766609997] [2022-11-18 19:50:28,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:50:28,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:50:28,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:50:28,412 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:50:28,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 19:50:28,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:28,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 178 conjunts are in the unsatisfiable core [2022-11-18 19:50:28,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:50:28,816 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-18 19:50:28,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-18 19:50:28,919 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 23 treesize of output 23 [2022-11-18 19:50:28,931 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 16 treesize of output 18 [2022-11-18 19:50:28,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:50:28,958 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-18 19:50:28,964 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-18 19:50:29,238 INFO L321 Elim1Store]: treesize reduction 73, result has 3.9 percent of original size [2022-11-18 19:50:29,238 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 101 treesize of output 116 [2022-11-18 19:50:29,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:50:29,291 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-11-18 19:50:29,291 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 92 treesize of output 94 [2022-11-18 19:50:29,302 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 54 [2022-11-18 19:50:29,338 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-18 19:50:29,338 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 58 [2022-11-18 19:50:31,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:50:31,825 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 113 treesize of output 113 [2022-11-18 19:50:31,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:50:31,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 85 treesize of output 85 [2022-11-18 19:50:31,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:50:31,840 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 82 [2022-11-18 19:50:31,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:50:31,847 INFO L350 Elim1Store]: Elim1 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 85 [2022-11-18 19:50:31,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:50:31,854 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 80 [2022-11-18 19:50:31,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:50:31,863 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 73 [2022-11-18 19:50:31,914 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-11-18 19:50:31,935 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17 [2022-11-18 19:50:31,990 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 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 [2022-11-18 19:50:32,020 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 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 [2022-11-18 19:50:32,350 INFO L321 Elim1Store]: treesize reduction 20, result has 39.4 percent of original size [2022-11-18 19:50:32,350 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 102 treesize of output 98 [2022-11-18 19:50:32,537 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 88 treesize of output 80 [2022-11-18 19:50:32,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 76 [2022-11-18 19:50:32,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:50:32,601 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-18 19:50:32,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:50:32,609 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 8 [2022-11-18 19:50:32,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:50:32,908 INFO L321 Elim1Store]: treesize reduction 70, result has 19.5 percent of original size [2022-11-18 19:50:32,909 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 174 treesize of output 126 [2022-11-18 19:50:32,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:50:32,934 INFO L321 Elim1Store]: treesize reduction 42, result has 10.6 percent of original size [2022-11-18 19:50:32,935 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 144 treesize of output 131 [2022-11-18 19:50:32,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:50:32,944 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 106 [2022-11-18 19:50:32,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:50:32,973 INFO L321 Elim1Store]: treesize reduction 34, result has 24.4 percent of original size [2022-11-18 19:50:32,973 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 117 treesize of output 150 [2022-11-18 19:50:32,983 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 treesize of output 7 [2022-11-18 19:50:32,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:50:33,000 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 67 [2022-11-18 19:50:33,388 INFO L321 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2022-11-18 19:50:33,388 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 231 treesize of output 228 [2022-11-18 19:50:33,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:50:33,459 INFO L321 Elim1Store]: treesize reduction 92, result has 24.0 percent of original size [2022-11-18 19:50:33,460 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 270 treesize of output 252 [2022-11-18 19:50:33,489 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 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 [2022-11-18 19:50:33,513 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 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 [2022-11-18 19:50:34,654 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-18 19:50:34,799 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-11-18 19:50:34,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 25 [2022-11-18 19:50:34,861 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:50:34,862 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:50:35,494 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_~#gl_list~0.offset| 4))) (and (forall ((v_ArrVal_2488 (Array Int Int)) (v_ArrVal_2487 (Array Int Int))) (let ((.cse1 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2488))) (let ((.cse0 (select (select .cse1 |c_~#gl_list~0.base|) .cse2))) (or (= .cse0 |c_~#gl_list~0.base|) (not (= .cse0 (select (select .cse1 .cse0) (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2487) |c_~#gl_list~0.base|) .cse2) 4)))))))) (forall ((v_ArrVal_2488 (Array Int Int)) (v_ArrVal_2487 (Array Int Int))) (let ((.cse3 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2487) |c_~#gl_list~0.base|) .cse2))) (or (= |c_~#gl_list~0.offset| .cse3) (not (let ((.cse5 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2488))) (let ((.cse4 (select (select .cse5 |c_~#gl_list~0.base|) .cse2))) (= .cse4 (select (select .cse5 .cse4) (+ .cse3 4))))))))))) is different from false [2022-11-18 19:50:35,862 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse5 (select (select |c_#memory_$Pointer$.base| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (let ((.cse6 (+ |c_ULTIMATE.start_gl_insert_~node~1#1.offset| 4)) (.cse3 (+ |c_~#gl_list~0.offset| 4)) (.cse4 (store |c_#memory_$Pointer$.base| .cse5 (store (select |c_#memory_$Pointer$.base| .cse5) (+ (select (select |c_#memory_$Pointer$.offset| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|) 4) |c_ULTIMATE.start_gl_insert_~node~1#1.base|)))) (and (forall ((v_ArrVal_2517 (Array Int Int)) (v_ArrVal_2516 (Array Int Int)) (v_ArrVal_2515 (Array Int Int)) (v_ArrVal_2513 (Array Int Int)) (v_ArrVal_2512 (Array Int Int)) (v_ArrVal_2488 (Array Int Int)) (v_ArrVal_2487 (Array Int Int)) (v_ArrVal_2514 Int) (v_ArrVal_2518 (Array Int Int))) (let ((.cse0 (select (select (store (store (store (store |c_#memory_$Pointer$.offset| .cse5 v_ArrVal_2518) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2515) |c_~#gl_list~0.base| (store (select (store (store |c_#memory_$Pointer$.offset| .cse5 v_ArrVal_2516) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2512) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset| .cse6)) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2487) |c_~#gl_list~0.base|) .cse3))) (or (= |c_~#gl_list~0.offset| .cse0) (not (let ((.cse1 (store (store (store .cse4 |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2513) |c_~#gl_list~0.base| (store (select (store .cse4 |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2517) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset| v_ArrVal_2514)) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2488))) (let ((.cse2 (select (select .cse1 |c_~#gl_list~0.base|) .cse3))) (= (select (select .cse1 .cse2) (+ .cse0 4)) .cse2))))))) (forall ((v_ArrVal_2517 (Array Int Int)) (v_ArrVal_2516 (Array Int Int)) (v_ArrVal_2515 (Array Int Int)) (v_ArrVal_2513 (Array Int Int)) (v_ArrVal_2512 (Array Int Int)) (v_ArrVal_2488 (Array Int Int)) (v_ArrVal_2487 (Array Int Int)) (v_ArrVal_2514 Int) (v_ArrVal_2518 (Array Int Int))) (let ((.cse8 (store (store (store .cse4 |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2513) |c_~#gl_list~0.base| (store (select (store .cse4 |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2517) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset| v_ArrVal_2514)) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2488))) (let ((.cse7 (select (select .cse8 |c_~#gl_list~0.base|) .cse3))) (or (= .cse7 |c_~#gl_list~0.base|) (not (= (select (select .cse8 .cse7) (+ (select (select (store (store (store (store |c_#memory_$Pointer$.offset| .cse5 v_ArrVal_2518) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2515) |c_~#gl_list~0.base| (store (select (store (store |c_#memory_$Pointer$.offset| .cse5 v_ArrVal_2516) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2512) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset| .cse6)) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2487) |c_~#gl_list~0.base|) .cse3) 4)) .cse7))))))))) is different from false [2022-11-18 19:50:35,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [766609997] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:50:35,867 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:50:35,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 18] total 32 [2022-11-18 19:50:35,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567494799] [2022-11-18 19:50:35,867 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:50:35,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-11-18 19:50:35,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:50:35,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-11-18 19:50:35,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=1444, Unknown=4, NotChecked=154, Total=1722 [2022-11-18 19:50:35,869 INFO L87 Difference]: Start difference. First operand 374 states and 436 transitions. Second operand has 33 states, 33 states have (on average 2.5757575757575757) internal successors, (85), 23 states have internal predecessors, (85), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-18 19:50:42,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:50:42,193 INFO L93 Difference]: Finished difference Result 468 states and 542 transitions. [2022-11-18 19:50:42,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 19:50:42,193 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 2.5757575757575757) internal successors, (85), 23 states have internal predecessors, (85), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 49 [2022-11-18 19:50:42,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:50:42,196 INFO L225 Difference]: With dead ends: 468 [2022-11-18 19:50:42,196 INFO L226 Difference]: Without dead ends: 465 [2022-11-18 19:50:42,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 53 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 563 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=322, Invalid=3222, Unknown=4, NotChecked=234, Total=3782 [2022-11-18 19:50:42,198 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 789 mSDsluCounter, 979 mSDsCounter, 0 mSdLazyCounter, 3261 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 794 SdHoareTripleChecker+Valid, 1033 SdHoareTripleChecker+Invalid, 4525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 3261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1200 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-18 19:50:42,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [794 Valid, 1033 Invalid, 4525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 3261 Invalid, 0 Unknown, 1200 Unchecked, 3.4s Time] [2022-11-18 19:50:42,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2022-11-18 19:50:42,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 380. [2022-11-18 19:50:42,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 338 states have (on average 1.168639053254438) internal successors, (395), 351 states have internal predecessors, (395), 32 states have call successors, (32), 13 states have call predecessors, (32), 9 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-18 19:50:42,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 442 transitions. [2022-11-18 19:50:42,307 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 442 transitions. Word has length 49 [2022-11-18 19:50:42,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:50:42,308 INFO L495 AbstractCegarLoop]: Abstraction has 380 states and 442 transitions. [2022-11-18 19:50:42,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 2.5757575757575757) internal successors, (85), 23 states have internal predecessors, (85), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-18 19:50:42,308 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 442 transitions. [2022-11-18 19:50:42,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-18 19:50:42,309 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:50:42,309 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:50:42,321 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 19:50:42,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:50:42,516 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:50:42,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:50:42,517 INFO L85 PathProgramCache]: Analyzing trace with hash 2059695343, now seen corresponding path program 1 times [2022-11-18 19:50:42,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:50:42,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614967561] [2022-11-18 19:50:42,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:50:42,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:50:42,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:42,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 19:50:42,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:42,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:50:42,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:50:42,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614967561] [2022-11-18 19:50:42,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614967561] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:50:42,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:50:42,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 19:50:42,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680969199] [2022-11-18 19:50:42,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:50:42,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:50:42,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:50:42,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:50:42,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:50:42,735 INFO L87 Difference]: Start difference. First operand 380 states and 442 transitions. Second operand has 10 states, 10 states have (on average 4.7) internal successors, (47), 9 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:50:43,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:50:43,572 INFO L93 Difference]: Finished difference Result 382 states and 443 transitions. [2022-11-18 19:50:43,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 19:50:43,573 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 9 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2022-11-18 19:50:43,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:50:43,576 INFO L225 Difference]: With dead ends: 382 [2022-11-18 19:50:43,576 INFO L226 Difference]: Without dead ends: 379 [2022-11-18 19:50:43,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2022-11-18 19:50:43,578 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 164 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 606 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 19:50:43,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 306 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 606 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-18 19:50:43,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2022-11-18 19:50:43,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 379. [2022-11-18 19:50:43,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 338 states have (on average 1.1568047337278107) internal successors, (391), 350 states have internal predecessors, (391), 31 states have call successors, (31), 13 states have call predecessors, (31), 9 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-18 19:50:43,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 437 transitions. [2022-11-18 19:50:43,716 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 437 transitions. Word has length 51 [2022-11-18 19:50:43,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:50:43,716 INFO L495 AbstractCegarLoop]: Abstraction has 379 states and 437 transitions. [2022-11-18 19:50:43,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 9 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:50:43,717 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 437 transitions. [2022-11-18 19:50:43,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-18 19:50:43,718 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:50:43,718 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-18 19:50:43,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-18 19:50:43,718 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:50:43,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:50:43,721 INFO L85 PathProgramCache]: Analyzing trace with hash 2029277591, now seen corresponding path program 1 times [2022-11-18 19:50:43,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:50:43,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741636391] [2022-11-18 19:50:43,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:50:43,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:50:43,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:45,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 19:50:45,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:45,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 19:50:45,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:46,013 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:50:46,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:50:46,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741636391] [2022-11-18 19:50:46,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741636391] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:50:46,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1235347444] [2022-11-18 19:50:46,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:50:46,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:50:46,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:50:46,015 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:50:46,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 19:50:46,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:46,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 132 conjunts are in the unsatisfiable core [2022-11-18 19:50:46,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:50:46,396 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-18 19:50:46,397 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-18 19:50:46,477 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-18 19:50:46,488 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-18 19:50:46,507 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 19:50:46,511 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 19:50:46,676 INFO L321 Elim1Store]: treesize reduction 77, result has 3.8 percent of original size [2022-11-18 19:50:46,676 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 54 treesize of output 68 [2022-11-18 19:50:46,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:50:46,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 30 [2022-11-18 19:50:46,687 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2022-11-18 19:50:46,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:50:46,691 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2022-11-18 19:50:46,756 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 19:50:46,756 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 37 [2022-11-18 19:50:46,870 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-18 19:50:46,871 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-18 19:50:46,947 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 36 treesize of output 32 [2022-11-18 19:50:46,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:50:46,972 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 12 [2022-11-18 19:50:47,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:50:47,147 INFO L321 Elim1Store]: treesize reduction 54, result has 23.9 percent of original size [2022-11-18 19:50:47,147 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 83 treesize of output 57 [2022-11-18 19:50:47,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:50:47,170 INFO L321 Elim1Store]: treesize reduction 38, result has 19.1 percent of original size [2022-11-18 19:50:47,170 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 57 treesize of output 56 [2022-11-18 19:50:47,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:50:47,177 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 37 [2022-11-18 19:50:47,189 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 19:50:47,287 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-18 19:50:47,287 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 58 [2022-11-18 19:50:47,557 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2022-11-18 19:50:47,562 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 19:50:47,658 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:50:47,658 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:50:47,784 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-18 19:50:48,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1235347444] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:50:48,228 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:50:48,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16] total 30 [2022-11-18 19:50:48,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122124586] [2022-11-18 19:50:48,229 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:50:48,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-11-18 19:50:48,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:50:48,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-11-18 19:50:48,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=1184, Unknown=16, NotChecked=0, Total=1332 [2022-11-18 19:50:48,231 INFO L87 Difference]: Start difference. First operand 379 states and 437 transitions. Second operand has 31 states, 31 states have (on average 2.935483870967742) internal successors, (91), 21 states have internal predecessors, (91), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-18 19:50:52,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:50:52,101 INFO L93 Difference]: Finished difference Result 456 states and 522 transitions. [2022-11-18 19:50:52,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-18 19:50:52,102 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 2.935483870967742) internal successors, (91), 21 states have internal predecessors, (91), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 52 [2022-11-18 19:50:52,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:50:52,104 INFO L225 Difference]: With dead ends: 456 [2022-11-18 19:50:52,104 INFO L226 Difference]: Without dead ends: 453 [2022-11-18 19:50:52,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 65 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 829 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=419, Invalid=2861, Unknown=26, NotChecked=0, Total=3306 [2022-11-18 19:50:52,106 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 1216 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 2051 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1222 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 2615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 2051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 413 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:50:52,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1222 Valid, 494 Invalid, 2615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 2051 Invalid, 0 Unknown, 413 Unchecked, 2.1s Time] [2022-11-18 19:50:52,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2022-11-18 19:50:52,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 382. [2022-11-18 19:50:52,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 341 states have (on average 1.152492668621701) internal successors, (393), 353 states have internal predecessors, (393), 31 states have call successors, (31), 13 states have call predecessors, (31), 9 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-18 19:50:52,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 439 transitions. [2022-11-18 19:50:52,229 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 439 transitions. Word has length 52 [2022-11-18 19:50:52,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:50:52,230 INFO L495 AbstractCegarLoop]: Abstraction has 382 states and 439 transitions. [2022-11-18 19:50:52,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 2.935483870967742) internal successors, (91), 21 states have internal predecessors, (91), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-18 19:50:52,230 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 439 transitions. [2022-11-18 19:50:52,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-18 19:50:52,231 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:50:52,231 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:50:52,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-18 19:50:52,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-18 19:50:52,439 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:50:52,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:50:52,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1916358950, now seen corresponding path program 2 times [2022-11-18 19:50:52,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:50:52,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919645801] [2022-11-18 19:50:52,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:50:52,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:50:52,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:54,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 19:50:54,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:54,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 19:50:54,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:54,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-18 19:50:54,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:55,003 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 19:50:55,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:50:55,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919645801] [2022-11-18 19:50:55,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919645801] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:50:55,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1436350530] [2022-11-18 19:50:55,004 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:50:55,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:50:55,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:50:55,005 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:50:55,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-18 19:50:55,413 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:50:55,413 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:50:55,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 194 conjunts are in the unsatisfiable core [2022-11-18 19:50:55,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:50:55,492 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-18 19:50:55,492 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-18 19:50:55,544 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 21 treesize of output 21 [2022-11-18 19:50:55,560 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 14 treesize of output 16 [2022-11-18 19:50:55,579 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 19:50:55,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-18 19:50:55,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:50:55,823 INFO L321 Elim1Store]: treesize reduction 76, result has 1.3 percent of original size [2022-11-18 19:50:55,824 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 119 treesize of output 143 [2022-11-18 19:50:55,833 INFO L350 Elim1Store]: Elim1 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 120 treesize of output 97 [2022-11-18 19:50:55,839 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 59 [2022-11-18 19:50:55,858 INFO L321 Elim1Store]: treesize reduction 29, result has 39.6 percent of original size [2022-11-18 19:50:55,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 47 [2022-11-18 19:50:55,879 INFO L350 Elim1Store]: Elim1 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 8 treesize of output 7 [2022-11-18 19:50:56,012 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:50:56,027 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-18 19:50:56,028 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 199 treesize of output 170 [2022-11-18 19:50:56,036 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:50:56,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:50:56,039 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 36 treesize of output 38 [2022-11-18 19:50:56,055 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-18 19:50:56,056 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 26 [2022-11-18 19:50:56,064 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-18 19:50:56,184 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-18 19:50:56,185 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-18 19:50:56,274 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 16 treesize of output 18 [2022-11-18 19:50:56,288 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 15 treesize of output 17 [2022-11-18 19:50:56,315 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-18 19:50:56,322 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2022-11-18 19:50:56,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:50:56,629 INFO L321 Elim1Store]: treesize reduction 58, result has 24.7 percent of original size [2022-11-18 19:50:56,629 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 109 treesize of output 153 [2022-11-18 19:50:56,640 INFO L350 Elim1Store]: Elim1 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 138 treesize of output 109 [2022-11-18 19:50:56,668 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-18 19:50:56,668 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 73 [2022-11-18 19:50:56,691 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 121 treesize of output 88 [2022-11-18 19:50:56,704 INFO L350 Elim1Store]: Elim1 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 8 treesize of output 7 [2022-11-18 19:50:56,751 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-18 19:50:56,752 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 28 [2022-11-18 19:50:56,759 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 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 [2022-11-18 19:50:56,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:50:56,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:50:56,950 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 48 [2022-11-18 19:50:56,955 INFO L350 Elim1Store]: Elim1 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 16 treesize of output 20 [2022-11-18 19:50:56,975 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 19:50:56,976 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 39 [2022-11-18 19:50:57,144 INFO L321 Elim1Store]: treesize reduction 8, result has 61.9 percent of original size [2022-11-18 19:50:57,144 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 22 [2022-11-18 19:50:57,229 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 16 treesize of output 18 [2022-11-18 19:50:57,237 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 23 treesize of output 23 [2022-11-18 19:50:57,259 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-18 19:50:57,263 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2022-11-18 19:50:57,420 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 32 [2022-11-18 19:50:57,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:50:57,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:50:57,426 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2022-11-18 19:50:57,430 INFO L350 Elim1Store]: Elim1 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 16 treesize of output 20 [2022-11-18 19:50:57,492 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 16 treesize of output 18 [2022-11-18 19:50:57,737 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-18 19:50:57,780 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 6 proven. 29 refuted. 4 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:50:57,780 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:50:57,980 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3478 (Array Int Int))) (not (= |c_~#gl_list~0.offset| (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3478) |c_~#gl_list~0.base|) (+ |c_~#gl_list~0.offset| 4))))) is different from false [2022-11-18 19:50:58,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1436350530] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:50:58,247 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:50:58,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 20] total 33 [2022-11-18 19:50:58,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080161877] [2022-11-18 19:50:58,248 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:50:58,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-18 19:50:58,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:50:58,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-18 19:50:58,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=1323, Unknown=27, NotChecked=74, Total=1560 [2022-11-18 19:50:58,249 INFO L87 Difference]: Start difference. First operand 382 states and 439 transitions. Second operand has 34 states, 34 states have (on average 2.3529411764705883) internal successors, (80), 22 states have internal predecessors, (80), 8 states have call successors, (9), 7 states have call predecessors, (9), 6 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2022-11-18 19:51:00,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:51:00,569 INFO L93 Difference]: Finished difference Result 434 states and 493 transitions. [2022-11-18 19:51:00,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-18 19:51:00,570 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.3529411764705883) internal successors, (80), 22 states have internal predecessors, (80), 8 states have call successors, (9), 7 states have call predecessors, (9), 6 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) Word has length 53 [2022-11-18 19:51:00,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:51:00,571 INFO L225 Difference]: With dead ends: 434 [2022-11-18 19:51:00,572 INFO L226 Difference]: Without dead ends: 431 [2022-11-18 19:51:00,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 54 SyntacticMatches, 4 SemanticMatches, 51 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 577 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=296, Invalid=2320, Unknown=40, NotChecked=100, Total=2756 [2022-11-18 19:51:00,573 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 381 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 869 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 1614 SdHoareTripleChecker+Invalid, 1549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 869 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 610 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-18 19:51:00,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [381 Valid, 1614 Invalid, 1549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 869 Invalid, 0 Unknown, 610 Unchecked, 0.9s Time] [2022-11-18 19:51:00,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2022-11-18 19:51:00,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 390. [2022-11-18 19:51:00,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 347 states have (on average 1.1469740634005763) internal successors, (398), 359 states have internal predecessors, (398), 31 states have call successors, (31), 15 states have call predecessors, (31), 11 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-18 19:51:00,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 444 transitions. [2022-11-18 19:51:00,693 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 444 transitions. Word has length 53 [2022-11-18 19:51:00,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:51:00,694 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 444 transitions. [2022-11-18 19:51:00,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.3529411764705883) internal successors, (80), 22 states have internal predecessors, (80), 8 states have call successors, (9), 7 states have call predecessors, (9), 6 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2022-11-18 19:51:00,694 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 444 transitions. [2022-11-18 19:51:00,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-18 19:51:00,695 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:51:00,695 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:51:00,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-18 19:51:00,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-18 19:51:00,907 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:51:00,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:51:00,907 INFO L85 PathProgramCache]: Analyzing trace with hash -617053959, now seen corresponding path program 1 times [2022-11-18 19:51:00,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:51:00,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432326486] [2022-11-18 19:51:00,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:51:00,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:51:00,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:00,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 19:51:00,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:00,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:51:00,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:51:00,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432326486] [2022-11-18 19:51:00,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432326486] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:51:00,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:51:00,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:51:00,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139925016] [2022-11-18 19:51:00,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:51:00,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:51:00,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:51:00,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:51:00,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:51:00,960 INFO L87 Difference]: Start difference. First operand 390 states and 444 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:51:01,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:51:01,290 INFO L93 Difference]: Finished difference Result 392 states and 445 transitions. [2022-11-18 19:51:01,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 19:51:01,291 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2022-11-18 19:51:01,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:51:01,293 INFO L225 Difference]: With dead ends: 392 [2022-11-18 19:51:01,293 INFO L226 Difference]: Without dead ends: 389 [2022-11-18 19:51:01,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:51:01,294 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 92 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:51:01,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 108 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 19:51:01,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2022-11-18 19:51:01,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 389. [2022-11-18 19:51:01,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 347 states have (on average 1.1354466858789625) internal successors, (394), 358 states have internal predecessors, (394), 30 states have call successors, (30), 15 states have call predecessors, (30), 11 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-18 19:51:01,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 439 transitions. [2022-11-18 19:51:01,402 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 439 transitions. Word has length 53 [2022-11-18 19:51:01,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:51:01,402 INFO L495 AbstractCegarLoop]: Abstraction has 389 states and 439 transitions. [2022-11-18 19:51:01,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:51:01,403 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 439 transitions. [2022-11-18 19:51:01,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-18 19:51:01,404 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:51:01,404 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-18 19:51:01,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-18 19:51:01,404 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:51:01,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:51:01,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1943731347, now seen corresponding path program 1 times [2022-11-18 19:51:01,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:51:01,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482536865] [2022-11-18 19:51:01,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:51:01,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:51:01,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:04,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 19:51:04,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:04,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 19:51:04,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:05,211 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:51:05,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:51:05,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482536865] [2022-11-18 19:51:05,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482536865] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:51:05,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2014461180] [2022-11-18 19:51:05,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:51:05,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:51:05,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:51:05,213 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:51:05,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-18 19:51:05,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:05,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 207 conjunts are in the unsatisfiable core [2022-11-18 19:51:05,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:51:05,658 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-18 19:51:05,659 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-18 19:51:05,709 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 14 treesize of output 16 [2022-11-18 19:51:05,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 21 treesize of output 21 [2022-11-18 19:51:05,751 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-18 19:51:05,762 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 19:51:06,080 INFO L321 Elim1Store]: treesize reduction 77, result has 3.8 percent of original size [2022-11-18 19:51:06,081 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 111 treesize of output 117 [2022-11-18 19:51:06,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:51:06,090 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 84 [2022-11-18 19:51:06,098 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 69 [2022-11-18 19:51:06,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:51:06,107 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 45 treesize of output 23 [2022-11-18 19:51:06,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:51:06,114 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 23 [2022-11-18 19:51:06,128 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-18 19:51:06,129 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 34 [2022-11-18 19:51:06,137 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 23 [2022-11-18 19:51:06,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:51:06,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:51:06,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:51:06,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:51:06,190 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 60 [2022-11-18 19:51:06,202 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 50 [2022-11-18 19:51:06,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:51:06,519 INFO L321 Elim1Store]: treesize reduction 8, result has 61.9 percent of original size [2022-11-18 19:51:06,519 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 22 [2022-11-18 19:51:06,673 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-18 19:51:06,674 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 73 treesize of output 67 [2022-11-18 19:51:06,691 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 51 [2022-11-18 19:51:06,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:51:06,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:51:06,743 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 19:51:06,744 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 28 [2022-11-18 19:51:06,749 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 18 [2022-11-18 19:51:07,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:51:07,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:51:07,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:51:07,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:51:07,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:51:07,012 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 19:51:07,013 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 189 treesize of output 130 [2022-11-18 19:51:07,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:51:07,040 INFO L321 Elim1Store]: treesize reduction 42, result has 10.6 percent of original size [2022-11-18 19:51:07,041 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 159 treesize of output 134 [2022-11-18 19:51:07,049 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 127 treesize of output 107 [2022-11-18 19:51:07,078 INFO L321 Elim1Store]: treesize reduction 44, result has 38.0 percent of original size [2022-11-18 19:51:07,078 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 2 case distinctions, treesize of input 142 treesize of output 110 [2022-11-18 19:51:07,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:51:07,086 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 63 [2022-11-18 19:51:07,093 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 28 [2022-11-18 19:51:07,248 INFO L321 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2022-11-18 19:51:07,248 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 145 treesize of output 112 [2022-11-18 19:51:07,257 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 70 [2022-11-18 19:51:08,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:51:08,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:51:08,885 INFO L321 Elim1Store]: treesize reduction 24, result has 11.1 percent of original size [2022-11-18 19:51:08,886 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 3 case distinctions, treesize of input 87 treesize of output 30 [2022-11-18 19:51:08,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:51:08,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:51:08,914 INFO L321 Elim1Store]: treesize reduction 22, result has 46.3 percent of original size [2022-11-18 19:51:08,915 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 86 treesize of output 43 [2022-11-18 19:51:09,019 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:51:09,019 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:51:09,188 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_~#gl_list~0.offset| 4))) (and (forall ((v_ArrVal_3957 (Array Int Int)) (v_ArrVal_3958 (Array Int Int))) (let ((.cse1 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3958))) (let ((.cse0 (+ 8 (select (select .cse1 |c_~#gl_list~0.base|) .cse2)))) (= .cse0 (select (select .cse1 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3957) |c_~#gl_list~0.base|) .cse2)) .cse0))))) (forall ((v_ArrVal_3957 (Array Int Int)) (v_ArrVal_3958 (Array Int Int))) (let ((.cse4 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3957))) (let ((.cse3 (select (select .cse4 |c_~#gl_list~0.base|) .cse2))) (= .cse3 (select (select .cse4 .cse3) (+ 8 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3958) |c_~#gl_list~0.base|) .cse2))))))))) is different from false [2022-11-18 19:51:09,690 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse8 (select (select |c_#memory_$Pointer$.base| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)) (.cse9 (+ (select (select |c_#memory_$Pointer$.offset| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|) 4)) (.cse5 (+ |c_ULTIMATE.start_gl_insert_~node~1#1.offset| 4))) (let ((.cse4 (store |c_#memory_$Pointer$.offset| .cse8 (store (select |c_#memory_$Pointer$.offset| .cse8) .cse9 .cse5))) (.cse3 (+ |c_~#gl_list~0.offset| 4)) (.cse2 (store |c_#memory_$Pointer$.base| .cse8 (store (select |c_#memory_$Pointer$.base| .cse8) .cse9 |c_ULTIMATE.start_gl_insert_~node~1#1.base|)))) (and (forall ((v_ArrVal_3990 (Array Int Int)) (v_ArrVal_3986 Int) (v_ArrVal_3987 (Array Int Int)) (v_ArrVal_3988 (Array Int Int)) (v_ArrVal_3989 (Array Int Int)) (v_ArrVal_3957 (Array Int Int)) (v_ArrVal_3958 (Array Int Int))) (let ((.cse1 (store (store (store .cse4 |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3987) |c_~#gl_list~0.base| (store (select (store .cse4 |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3988) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset| .cse5)) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3958))) (let ((.cse0 (+ 8 (select (select .cse1 |c_~#gl_list~0.base|) .cse3)))) (= .cse0 (select (select .cse1 (select (select (store (store (store .cse2 |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3989) |c_~#gl_list~0.base| (store (select (store .cse2 |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3990) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset| v_ArrVal_3986)) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3957) |c_~#gl_list~0.base|) .cse3)) .cse0))))) (forall ((v_ArrVal_3990 (Array Int Int)) (v_ArrVal_3986 Int) (v_ArrVal_3987 (Array Int Int)) (v_ArrVal_3988 (Array Int Int)) (v_ArrVal_3989 (Array Int Int)) (v_ArrVal_3957 (Array Int Int)) (v_ArrVal_3958 (Array Int Int))) (let ((.cse6 (store (store (store .cse2 |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3989) |c_~#gl_list~0.base| (store (select (store .cse2 |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3990) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset| v_ArrVal_3986)) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3957))) (let ((.cse7 (select (select .cse6 |c_~#gl_list~0.base|) .cse3))) (= (select (select .cse6 .cse7) (+ 8 (select (select (store (store (store .cse4 |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3987) |c_~#gl_list~0.base| (store (select (store .cse4 |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3988) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset| .cse5)) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3958) |c_~#gl_list~0.base|) .cse3))) .cse7))))))) is different from false [2022-11-18 19:51:09,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2014461180] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:51:09,694 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:51:09,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17] total 29 [2022-11-18 19:51:09,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010565208] [2022-11-18 19:51:09,695 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:51:09,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-11-18 19:51:09,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:51:09,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-11-18 19:51:09,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=787, Unknown=5, NotChecked=114, Total=992 [2022-11-18 19:51:09,697 INFO L87 Difference]: Start difference. First operand 389 states and 439 transitions. Second operand has 30 states, 30 states have (on average 3.066666666666667) internal successors, (92), 21 states have internal predecessors, (92), 6 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-18 19:51:12,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:51:12,400 INFO L93 Difference]: Finished difference Result 427 states and 479 transitions. [2022-11-18 19:51:12,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-18 19:51:12,401 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.066666666666667) internal successors, (92), 21 states have internal predecessors, (92), 6 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 55 [2022-11-18 19:51:12,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:51:12,403 INFO L225 Difference]: With dead ends: 427 [2022-11-18 19:51:12,403 INFO L226 Difference]: Without dead ends: 424 [2022-11-18 19:51:12,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 73 SyntacticMatches, 3 SemanticMatches, 43 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=188, Invalid=1619, Unknown=7, NotChecked=166, Total=1980 [2022-11-18 19:51:12,404 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 341 mSDsluCounter, 1609 mSDsCounter, 0 mSdLazyCounter, 959 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 1726 SdHoareTripleChecker+Invalid, 1501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 495 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:51:12,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 1726 Invalid, 1501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 959 Invalid, 0 Unknown, 495 Unchecked, 1.3s Time] [2022-11-18 19:51:12,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2022-11-18 19:51:12,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 392. [2022-11-18 19:51:12,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 350 states have (on average 1.1314285714285715) internal successors, (396), 361 states have internal predecessors, (396), 30 states have call successors, (30), 15 states have call predecessors, (30), 11 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-18 19:51:12,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 441 transitions. [2022-11-18 19:51:12,525 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 441 transitions. Word has length 55 [2022-11-18 19:51:12,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:51:12,525 INFO L495 AbstractCegarLoop]: Abstraction has 392 states and 441 transitions. [2022-11-18 19:51:12,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.066666666666667) internal successors, (92), 21 states have internal predecessors, (92), 6 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-18 19:51:12,525 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 441 transitions. [2022-11-18 19:51:12,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-18 19:51:12,526 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:51:12,526 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:51:12,539 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-18 19:51:12,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:51:12,733 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:51:12,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:51:12,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1796437161, now seen corresponding path program 2 times [2022-11-18 19:51:12,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:51:12,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005231985] [2022-11-18 19:51:12,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:51:12,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:51:12,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:15,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 19:51:15,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:15,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 19:51:15,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:16,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-18 19:51:16,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:16,278 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 1 proven. 30 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 19:51:16,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:51:16,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005231985] [2022-11-18 19:51:16,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005231985] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:51:16,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [582363385] [2022-11-18 19:51:16,279 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:51:16,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:51:16,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:51:16,280 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:51:16,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-18 19:51:16,922 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:51:16,923 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:51:16,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 607 conjuncts, 227 conjunts are in the unsatisfiable core [2022-11-18 19:51:16,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:51:16,994 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-18 19:51:16,995 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-18 19:51:17,038 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 30 treesize of output 28 [2022-11-18 19:51:17,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:51:17,059 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 19:51:17,059 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 10 [2022-11-18 19:51:17,146 INFO L321 Elim1Store]: treesize reduction 69, result has 33.0 percent of original size [2022-11-18 19:51:17,147 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 87 [2022-11-18 19:51:17,176 INFO L321 Elim1Store]: treesize reduction 60, result has 16.7 percent of original size [2022-11-18 19:51:17,176 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 69 treesize of output 47 [2022-11-18 19:51:17,182 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-18 19:51:17,190 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2022-11-18 19:51:17,204 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-18 19:51:17,216 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 19:51:17,242 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-18 19:51:17,242 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 40 [2022-11-18 19:51:17,270 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 19:51:19,661 INFO L321 Elim1Store]: treesize reduction 138, result has 2.1 percent of original size [2022-11-18 19:51:19,661 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 7 new quantified variables, introduced 7 case distinctions, treesize of input 117 treesize of output 256 [2022-11-18 19:51:19,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:51:19,714 INFO L321 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2022-11-18 19:51:19,715 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 199 treesize of output 190 [2022-11-18 19:51:19,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:51:19,738 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:51:19,744 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:51:19,751 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:51:19,752 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:51:19,754 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 159 [2022-11-18 19:51:19,838 INFO L321 Elim1Store]: treesize reduction 38, result has 34.5 percent of original size [2022-11-18 19:51:19,839 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 44 treesize of output 63 [2022-11-18 19:51:20,033 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:51:20,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:51:20,038 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 85 treesize of output 46 [2022-11-18 19:51:20,047 INFO L321 Elim1Store]: treesize reduction 26, result has 3.7 percent of original size [2022-11-18 19:51:20,048 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 7 [2022-11-18 19:51:20,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:51:20,057 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 23 [2022-11-18 19:51:20,212 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:51:20,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:51:20,216 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 96 treesize of output 90 [2022-11-18 19:51:20,222 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 96 treesize of output 98 [2022-11-18 19:51:20,472 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-18 19:51:20,473 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-18 19:51:20,638 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 82 treesize of output 84 [2022-11-18 19:51:20,643 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 82 treesize of output 72 [2022-11-18 19:51:20,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:51:20,685 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 8 [2022-11-18 19:51:20,959 INFO L321 Elim1Store]: treesize reduction 61, result has 19.7 percent of original size [2022-11-18 19:51:20,960 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 171 treesize of output 176 [2022-11-18 19:51:20,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:51:20,974 INFO L321 Elim1Store]: treesize reduction 51, result has 1.9 percent of original size [2022-11-18 19:51:20,974 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 196 treesize of output 141 [2022-11-18 19:51:20,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:51:21,013 INFO L321 Elim1Store]: treesize reduction 24, result has 52.0 percent of original size [2022-11-18 19:51:21,014 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 129 treesize of output 130 [2022-11-18 19:51:21,043 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-18 19:51:21,043 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 92 treesize of output 84 [2022-11-18 19:51:21,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:51:21,072 INFO L321 Elim1Store]: treesize reduction 38, result has 19.1 percent of original size [2022-11-18 19:51:21,073 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 78 treesize of output 82 [2022-11-18 19:51:21,095 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-18 19:51:21,095 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 71 [2022-11-18 19:51:21,348 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 19:51:21,348 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 87 treesize of output 80 [2022-11-18 19:51:21,368 INFO L321 Elim1Store]: treesize reduction 41, result has 37.9 percent of original size [2022-11-18 19:51:21,368 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 69 treesize of output 86 [2022-11-18 19:51:21,665 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-18 19:51:21,666 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-18 19:51:21,828 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 73 treesize of output 67 [2022-11-18 19:51:21,847 INFO L321 Elim1Store]: treesize reduction 37, result has 36.2 percent of original size [2022-11-18 19:51:21,847 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 65 treesize of output 78 [2022-11-18 19:51:22,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:51:22,011 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 54 [2022-11-18 19:51:22,021 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 19:51:22,022 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 38 [2022-11-18 19:51:22,278 INFO L321 Elim1Store]: treesize reduction 61, result has 19.7 percent of original size [2022-11-18 19:51:22,278 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 159 treesize of output 179 [2022-11-18 19:51:22,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:51:22,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:51:22,362 INFO L321 Elim1Store]: treesize reduction 262, result has 39.5 percent of original size [2022-11-18 19:51:22,363 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 171 treesize of output 295 [2022-11-18 19:51:22,381 INFO L350 Elim1Store]: Elim1 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 38 treesize of output 37 [2022-11-18 19:51:22,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:51:22,549 INFO L350 Elim1Store]: Elim1 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 16 treesize of output 20 [2022-11-18 19:51:22,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:51:22,593 INFO L321 Elim1Store]: treesize reduction 25, result has 37.5 percent of original size [2022-11-18 19:51:22,593 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 120 treesize of output 127 [2022-11-18 19:51:22,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:51:22,651 INFO L321 Elim1Store]: treesize reduction 25, result has 37.5 percent of original size [2022-11-18 19:51:22,652 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 120 treesize of output 127 [2022-11-18 19:51:22,681 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 treesize of output 7 [2022-11-18 19:51:23,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:51:25,176 INFO L321 Elim1Store]: treesize reduction 240, result has 73.7 percent of original size [2022-11-18 19:51:25,178 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 1 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 65 case distinctions, treesize of input 57187 treesize of output 57269 [2022-11-18 19:51:26,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:51:26,593 INFO L321 Elim1Store]: treesize reduction 22, result has 52.2 percent of original size [2022-11-18 19:51:26,595 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 56710 treesize of output 54156 [2022-11-18 19:51:27,522 INFO L321 Elim1Store]: treesize reduction 128, result has 57.5 percent of original size [2022-11-18 19:51:27,523 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 61310 treesize of output 61420 [2022-11-18 19:51:28,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:51:28,254 INFO L321 Elim1Store]: treesize reduction 24, result has 50.0 percent of original size [2022-11-18 19:51:28,256 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 61375 treesize of output 60099 [2022-11-18 19:51:28,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:51:28,968 INFO L321 Elim1Store]: treesize reduction 24, result has 50.0 percent of original size [2022-11-18 19:51:28,970 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 60086 treesize of output 59436 [2022-11-18 19:51:29,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:51:29,824 INFO L321 Elim1Store]: treesize reduction 24, result has 50.0 percent of original size [2022-11-18 19:51:29,826 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 59490 treesize of output 59320 [2022-11-18 19:51:30,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:51:30,701 INFO L321 Elim1Store]: treesize reduction 24, result has 50.0 percent of original size [2022-11-18 19:51:30,703 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 59256 treesize of output 58590 [2022-11-18 19:51:32,604 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-18 19:51:37,852 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-18 19:51:37,920 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-18 19:51:38,700 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-18 19:51:41,317 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-18 19:51:41,364 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-18 19:51:50,467 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2022-11-18 19:51:50,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2022-11-18 19:51:50,509 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2022-11-18 19:51:50,535 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2022-11-18 19:51:50,560 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2022-11-18 19:51:50,642 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-11-18 19:51:50,660 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-11-18 19:51:50,676 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-11-18 19:51:50,697 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-11-18 19:51:50,749 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-11-18 19:51:50,762 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-18 19:51:50,769 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-18 19:51:50,780 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-18 19:51:50,785 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-11-18 19:51:50,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-18 19:51:50,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:51:50,986 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Maybe an infinite loop at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:130) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:345) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:188) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:281) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-18 19:51:50,991 INFO L158 Benchmark]: Toolchain (without parser) took 154031.57ms. Allocated memory was 102.8MB in the beginning and 992.0MB in the end (delta: 889.2MB). Free memory was 66.8MB in the beginning and 901.8MB in the end (delta: -835.0MB). Peak memory consumption was 602.5MB. Max. memory is 16.1GB. [2022-11-18 19:51:50,991 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 102.8MB. Free memory is still 56.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:51:50,991 INFO L158 Benchmark]: CACSL2BoogieTranslator took 640.81ms. Allocated memory is still 102.8MB. Free memory was 66.6MB in the beginning and 60.2MB in the end (delta: 6.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 19:51:50,991 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.48ms. Allocated memory is still 102.8MB. Free memory was 60.2MB in the beginning and 57.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:51:50,991 INFO L158 Benchmark]: Boogie Preprocessor took 66.59ms. Allocated memory is still 102.8MB. Free memory was 57.6MB in the beginning and 54.9MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 19:51:50,993 INFO L158 Benchmark]: RCFGBuilder took 738.72ms. Allocated memory was 102.8MB in the beginning and 127.9MB in the end (delta: 25.2MB). Free memory was 54.9MB in the beginning and 84.8MB in the end (delta: -29.9MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. [2022-11-18 19:51:50,993 INFO L158 Benchmark]: TraceAbstraction took 152492.26ms. Allocated memory was 127.9MB in the beginning and 992.0MB in the end (delta: 864.0MB). Free memory was 83.6MB in the beginning and 901.8MB in the end (delta: -818.2MB). Peak memory consumption was 594.1MB. Max. memory is 16.1GB. [2022-11-18 19:51:50,994 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 102.8MB. Free memory is still 56.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 640.81ms. Allocated memory is still 102.8MB. Free memory was 66.6MB in the beginning and 60.2MB in the end (delta: 6.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.48ms. Allocated memory is still 102.8MB. Free memory was 60.2MB in the beginning and 57.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.59ms. Allocated memory is still 102.8MB. Free memory was 57.6MB in the beginning and 54.9MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 738.72ms. Allocated memory was 102.8MB in the beginning and 127.9MB in the end (delta: 25.2MB). Free memory was 54.9MB in the beginning and 84.8MB in the end (delta: -29.9MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. * TraceAbstraction took 152492.26ms. Allocated memory was 127.9MB in the beginning and 992.0MB in the end (delta: 864.0MB). Free memory was 83.6MB in the beginning and 901.8MB in the end (delta: -818.2MB). Peak memory consumption was 594.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Maybe an infinite loop de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Maybe an infinite loop: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:130) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-18 19:51:51,028 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a38de44f112a10364737c35b840e673503a211a020b9f494a50e4a32c8fe31c0 --- 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-8393723 [2022-11-18 19:51:53,329 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:51:53,331 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:51:53,350 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:51:53,350 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:51:53,351 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:51:53,353 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:51:53,355 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:51:53,357 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:51:53,358 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:51:53,359 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:51:53,360 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:51:53,361 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:51:53,362 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:51:53,363 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:51:53,365 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:51:53,366 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:51:53,367 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:51:53,368 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:51:53,370 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:51:53,372 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:51:53,373 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:51:53,375 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:51:53,376 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:51:53,380 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:51:53,380 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:51:53,381 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:51:53,382 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:51:53,382 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:51:53,384 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:51:53,384 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:51:53,385 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:51:53,386 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:51:53,387 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:51:53,388 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:51:53,388 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:51:53,389 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:51:53,390 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:51:53,390 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:51:53,391 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:51:53,392 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:51:53,393 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-11-18 19:51:53,417 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:51:53,417 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:51:53,418 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:51:53,418 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:51:53,419 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:51:53,419 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:51:53,420 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:51:53,420 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:51:53,420 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:51:53,421 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:51:53,421 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:51:53,421 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:51:53,422 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:51:53,422 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:51:53,422 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:51:53,423 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:51:53,423 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 19:51:53,423 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-18 19:51:53,423 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-18 19:51:53,424 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:51:53,424 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:51:53,424 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:51:53,425 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:51:53,425 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:51:53,425 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:51:53,426 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:51:53,426 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:51:53,426 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:51:53,427 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:51:53,431 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:51:53,432 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-18 19:51:53,432 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-18 19:51:53,432 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:51:53,433 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:51:53,433 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:51:53,433 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-18 19:51:53,433 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a38de44f112a10364737c35b840e673503a211a020b9f494a50e4a32c8fe31c0 [2022-11-18 19:51:53,858 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:51:53,879 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:51:53,882 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:51:53,884 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:51:53,887 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:51:53,889 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i [2022-11-18 19:51:53,965 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/data/1fbfd77c8/24185d970ad140ac87b4e4d23e312af7/FLAGca1f5d5ac [2022-11-18 19:51:54,557 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:51:54,565 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i [2022-11-18 19:51:54,587 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/data/1fbfd77c8/24185d970ad140ac87b4e4d23e312af7/FLAGca1f5d5ac [2022-11-18 19:51:54,831 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/data/1fbfd77c8/24185d970ad140ac87b4e4d23e312af7 [2022-11-18 19:51:54,833 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:51:54,834 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:51:54,836 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:51:54,836 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:51:54,844 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:51:54,845 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:51:54" (1/1) ... [2022-11-18 19:51:54,846 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@149d442d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:54, skipping insertion in model container [2022-11-18 19:51:54,846 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:51:54" (1/1) ... [2022-11-18 19:51:54,855 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:51:54,921 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:51:55,332 WARN L234 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_a067f1be-b261-45aa-be61-06f010245558/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i[33822,33835] [2022-11-18 19:51:55,403 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:51:55,420 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-18 19:51:55,432 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:51:55,476 WARN L234 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_a067f1be-b261-45aa-be61-06f010245558/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i[33822,33835] [2022-11-18 19:51:55,508 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:51:55,516 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:51:55,553 WARN L234 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_a067f1be-b261-45aa-be61-06f010245558/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i[33822,33835] [2022-11-18 19:51:55,569 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:51:55,627 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:51:55,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:55 WrapperNode [2022-11-18 19:51:55,627 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:51:55,629 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:51:55,629 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:51:55,629 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:51:55,637 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:55" (1/1) ... [2022-11-18 19:51:55,657 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:55" (1/1) ... [2022-11-18 19:51:55,680 INFO L138 Inliner]: procedures = 235, calls = 75, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 113 [2022-11-18 19:51:55,681 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:51:55,681 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:51:55,681 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:51:55,682 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:51:55,691 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:55" (1/1) ... [2022-11-18 19:51:55,691 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:55" (1/1) ... [2022-11-18 19:51:55,696 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:55" (1/1) ... [2022-11-18 19:51:55,697 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:55" (1/1) ... [2022-11-18 19:51:55,711 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:55" (1/1) ... [2022-11-18 19:51:55,720 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:55" (1/1) ... [2022-11-18 19:51:55,723 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:55" (1/1) ... [2022-11-18 19:51:55,725 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:55" (1/1) ... [2022-11-18 19:51:55,729 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:51:55,730 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:51:55,730 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:51:55,730 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:51:55,731 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:55" (1/1) ... [2022-11-18 19:51:55,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:51:55,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:51:55,771 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:51:55,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:51:55,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-18 19:51:55,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 19:51:55,811 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2022-11-18 19:51:55,812 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2022-11-18 19:51:55,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 19:51:55,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-18 19:51:55,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-18 19:51:55,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-18 19:51:55,813 INFO L130 BoogieDeclarations]: Found specification of procedure val_from_node [2022-11-18 19:51:55,813 INFO L138 BoogieDeclarations]: Found implementation of procedure val_from_node [2022-11-18 19:51:55,813 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2022-11-18 19:51:55,813 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2022-11-18 19:51:55,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 19:51:55,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:51:55,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 19:51:55,814 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-18 19:51:55,814 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-18 19:51:55,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:51:55,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:51:55,959 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:51:55,961 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:51:56,634 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:51:56,643 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:51:56,643 INFO L300 CfgBuilder]: Removed 41 assume(true) statements. [2022-11-18 19:51:56,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:51:56 BoogieIcfgContainer [2022-11-18 19:51:56,646 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:51:56,648 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:51:56,648 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:51:56,651 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:51:56,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:51:54" (1/3) ... [2022-11-18 19:51:56,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58928857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:51:56, skipping insertion in model container [2022-11-18 19:51:56,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:55" (2/3) ... [2022-11-18 19:51:56,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58928857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:51:56, skipping insertion in model container [2022-11-18 19:51:56,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:51:56" (3/3) ... [2022-11-18 19:51:56,655 INFO L112 eAbstractionObserver]: Analyzing ICFG bubble_sort_linux-1.i [2022-11-18 19:51:56,681 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:51:56,681 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 19:51:56,755 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:51:56,761 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=PETRI_NET, 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;@b4404b3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:51:56,761 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 19:51:56,766 INFO L276 IsEmpty]: Start isEmpty. Operand has 117 states, 88 states have (on average 1.75) internal successors, (154), 107 states have internal predecessors, (154), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2022-11-18 19:51:56,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-18 19:51:56,774 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:51:56,774 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:51:56,775 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:51:56,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:51:56,780 INFO L85 PathProgramCache]: Analyzing trace with hash 844459879, now seen corresponding path program 1 times [2022-11-18 19:51:56,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:51:56,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2078792245] [2022-11-18 19:51:56,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:51:56,791 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:51:56,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:51:56,793 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 19:51:56,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-18 19:51:56,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:56,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-18 19:51:56,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:51:56,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:51:56,956 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:51:56,957 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:51:56,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2078792245] [2022-11-18 19:51:56,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2078792245] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:51:56,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:51:56,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:51:56,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222473310] [2022-11-18 19:51:56,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:51:56,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 19:51:56,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:51:56,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 19:51:56,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 19:51:56,999 INFO L87 Difference]: Start difference. First operand has 117 states, 88 states have (on average 1.75) internal successors, (154), 107 states have internal predecessors, (154), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:51:57,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:51:57,061 INFO L93 Difference]: Finished difference Result 228 states and 395 transitions. [2022-11-18 19:51:57,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 19:51:57,064 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-18 19:51:57,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:51:57,079 INFO L225 Difference]: With dead ends: 228 [2022-11-18 19:51:57,080 INFO L226 Difference]: Without dead ends: 106 [2022-11-18 19:51:57,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 19:51:57,096 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:51:57,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:51:57,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-11-18 19:51:57,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2022-11-18 19:51:57,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 81 states have (on average 1.2469135802469136) internal successors, (101), 96 states have internal predecessors, (101), 21 states have call successors, (21), 4 states have call predecessors, (21), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-18 19:51:57,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 127 transitions. [2022-11-18 19:51:57,139 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 127 transitions. Word has length 9 [2022-11-18 19:51:57,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:51:57,139 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 127 transitions. [2022-11-18 19:51:57,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:51:57,140 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 127 transitions. [2022-11-18 19:51:57,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-18 19:51:57,141 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:51:57,142 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:51:57,159 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-18 19:51:57,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:51:57,354 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:51:57,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:51:57,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1622181416, now seen corresponding path program 1 times [2022-11-18 19:51:57,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:51:57,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1203645585] [2022-11-18 19:51:57,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:51:57,358 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:51:57,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:51:57,362 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 19:51:57,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-18 19:51:57,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:57,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 19:51:57,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:51:57,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:51:57,701 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:51:57,701 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:51:57,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1203645585] [2022-11-18 19:51:57,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1203645585] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:51:57,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:51:57,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:51:57,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391015044] [2022-11-18 19:51:57,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:51:57,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:51:57,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:51:57,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:51:57,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:51:57,705 INFO L87 Difference]: Start difference. First operand 106 states and 127 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:51:57,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:51:57,888 INFO L93 Difference]: Finished difference Result 108 states and 128 transitions. [2022-11-18 19:51:57,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:51:57,889 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2022-11-18 19:51:57,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:51:57,894 INFO L225 Difference]: With dead ends: 108 [2022-11-18 19:51:57,894 INFO L226 Difference]: Without dead ends: 105 [2022-11-18 19:51:57,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:51:57,896 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 171 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:51:57,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 253 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:51:57,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2022-11-18 19:51:57,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2022-11-18 19:51:57,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 81 states have (on average 1.2345679012345678) internal successors, (100), 95 states have internal predecessors, (100), 20 states have call successors, (20), 4 states have call predecessors, (20), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-18 19:51:57,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 125 transitions. [2022-11-18 19:51:57,932 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 125 transitions. Word has length 20 [2022-11-18 19:51:57,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:51:57,934 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 125 transitions. [2022-11-18 19:51:57,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:51:57,935 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 125 transitions. [2022-11-18 19:51:57,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-18 19:51:57,936 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:51:57,936 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:51:57,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-18 19:51:58,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:51:58,150 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:51:58,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:51:58,151 INFO L85 PathProgramCache]: Analyzing trace with hash -845475890, now seen corresponding path program 1 times [2022-11-18 19:51:58,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:51:58,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1500699411] [2022-11-18 19:51:58,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:51:58,152 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:51:58,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:51:58,155 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 19:51:58,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-18 19:51:58,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:58,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-18 19:51:58,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:51:58,496 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-18 19:51:58,497 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-11-18 19:51:59,011 INFO L321 Elim1Store]: treesize reduction 117, result has 35.4 percent of original size [2022-11-18 19:51:59,011 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 194 treesize of output 281 [2022-11-18 19:51:59,078 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 treesize of output 7 [2022-11-18 19:51:59,133 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 treesize of output 7 [2022-11-18 19:51:59,168 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 treesize of output 7 [2022-11-18 19:51:59,389 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:51:59,402 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:51:59,447 INFO L321 Elim1Store]: treesize reduction 25, result has 24.2 percent of original size [2022-11-18 19:51:59,448 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 96 treesize of output 97 [2022-11-18 19:51:59,519 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 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 [2022-11-18 19:51:59,577 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:51:59,594 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:51:59,597 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 79 [2022-11-18 19:51:59,614 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 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 [2022-11-18 19:51:59,924 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-18 19:51:59,924 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 19 [2022-11-18 19:51:59,932 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 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 [2022-11-18 19:51:59,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:52:00,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:52:00,026 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-18 19:52:00,026 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 55 treesize of output 16 [2022-11-18 19:52:00,036 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 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 [2022-11-18 19:52:00,204 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 19:52:00,204 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 22 [2022-11-18 19:52:00,320 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 19:52:00,321 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 11 [2022-11-18 19:52:00,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:52:00,345 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:52:00,345 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:52:00,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1500699411] [2022-11-18 19:52:00,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1500699411] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:52:00,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:52:00,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 19:52:00,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920121561] [2022-11-18 19:52:00,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:52:00,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 19:52:00,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:52:00,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 19:52:00,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-11-18 19:52:00,348 INFO L87 Difference]: Start difference. First operand 105 states and 125 transitions. Second operand has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 7 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:52:02,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:52:02,455 INFO L93 Difference]: Finished difference Result 197 states and 234 transitions. [2022-11-18 19:52:02,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 19:52:02,456 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 7 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2022-11-18 19:52:02,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:52:02,458 INFO L225 Difference]: With dead ends: 197 [2022-11-18 19:52:02,459 INFO L226 Difference]: Without dead ends: 191 [2022-11-18 19:52:02,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2022-11-18 19:52:02,460 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 409 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-18 19:52:02,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 494 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-18 19:52:02,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2022-11-18 19:52:02,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 171. [2022-11-18 19:52:02,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 143 states have (on average 1.2447552447552448) internal successors, (178), 157 states have internal predecessors, (178), 23 states have call successors, (23), 6 states have call predecessors, (23), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-18 19:52:02,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 208 transitions. [2022-11-18 19:52:02,530 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 208 transitions. Word has length 23 [2022-11-18 19:52:02,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:52:02,531 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 208 transitions. [2022-11-18 19:52:02,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 7 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:52:02,532 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 208 transitions. [2022-11-18 19:52:02,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-18 19:52:02,532 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:52:02,532 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:52:02,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-18 19:52:02,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:52:02,747 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:52:02,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:52:02,748 INFO L85 PathProgramCache]: Analyzing trace with hash 2145302357, now seen corresponding path program 1 times [2022-11-18 19:52:02,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:52:02,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2088546438] [2022-11-18 19:52:02,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:52:02,749 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:52:02,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:52:02,750 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 19:52:02,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-18 19:52:02,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:52:02,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 57 conjunts are in the unsatisfiable core [2022-11-18 19:52:02,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:52:03,052 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-18 19:52:03,052 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-11-18 19:52:03,120 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 14 treesize of output 16 [2022-11-18 19:52:03,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 14 treesize of output 16 [2022-11-18 19:52:03,153 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 19:52:03,160 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 19:52:03,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:52:03,889 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 78 [2022-11-18 19:52:03,905 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 65 [2022-11-18 19:52:03,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:52:03,919 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 33 treesize of output 28 [2022-11-18 19:52:03,957 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 19:52:03,958 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 62 [2022-11-18 19:52:03,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:52:03,970 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 25 [2022-11-18 19:52:04,184 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 19:52:04,185 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 76 [2022-11-18 19:52:04,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:52:04,197 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 23 treesize of output 25 [2022-11-18 19:52:04,218 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-18 19:52:04,218 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 36 [2022-11-18 19:52:04,693 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-18 19:52:04,702 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-11-18 19:52:04,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:52:04,802 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:52:04,802 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:52:04,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2088546438] [2022-11-18 19:52:04,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2088546438] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:52:04,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:52:04,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 19:52:04,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701294527] [2022-11-18 19:52:04,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:52:04,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 19:52:04,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:52:04,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 19:52:04,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=89, Unknown=1, NotChecked=0, Total=110 [2022-11-18 19:52:04,804 INFO L87 Difference]: Start difference. First operand 171 states and 208 transitions. Second operand has 11 states, 11 states have (on average 2.0) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:52:06,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:52:06,975 INFO L93 Difference]: Finished difference Result 255 states and 305 transitions. [2022-11-18 19:52:06,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 19:52:06,982 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.0) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2022-11-18 19:52:06,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:52:06,984 INFO L225 Difference]: With dead ends: 255 [2022-11-18 19:52:06,984 INFO L226 Difference]: Without dead ends: 252 [2022-11-18 19:52:06,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=49, Invalid=188, Unknown=3, NotChecked=0, Total=240 [2022-11-18 19:52:06,985 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 134 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 273 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-18 19:52:06,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 522 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 570 Invalid, 0 Unknown, 273 Unchecked, 1.6s Time] [2022-11-18 19:52:06,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2022-11-18 19:52:07,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 237. [2022-11-18 19:52:07,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 205 states have (on average 1.2390243902439024) internal successors, (254), 220 states have internal predecessors, (254), 25 states have call successors, (25), 8 states have call predecessors, (25), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-18 19:52:07,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 288 transitions. [2022-11-18 19:52:07,053 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 288 transitions. Word has length 26 [2022-11-18 19:52:07,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:52:07,053 INFO L495 AbstractCegarLoop]: Abstraction has 237 states and 288 transitions. [2022-11-18 19:52:07,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.0) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:52:07,054 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 288 transitions. [2022-11-18 19:52:07,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 19:52:07,055 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:52:07,055 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:52:07,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-18 19:52:07,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:52:07,276 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:52:07,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:52:07,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1337820254, now seen corresponding path program 1 times [2022-11-18 19:52:07,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:52:07,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [491307839] [2022-11-18 19:52:07,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:52:07,278 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:52:07,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:52:07,279 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 19:52:07,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-18 19:52:07,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:52:07,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 58 conjunts are in the unsatisfiable core [2022-11-18 19:52:07,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:52:07,611 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-18 19:52:07,612 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-11-18 19:52:07,681 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 14 treesize of output 16 [2022-11-18 19:52:07,697 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 14 treesize of output 16 [2022-11-18 19:52:07,715 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 19:52:07,727 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 19:52:08,083 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 137 treesize of output 101 [2022-11-18 19:52:08,102 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-18 19:52:08,103 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 105 treesize of output 37 [2022-11-18 19:52:08,222 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-18 19:52:08,222 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 32 [2022-11-18 19:52:08,236 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-18 19:52:08,533 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-18 19:52:08,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:52:08,570 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:52:08,570 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:52:08,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [491307839] [2022-11-18 19:52:08,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [491307839] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:52:08,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:52:08,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 19:52:08,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466798864] [2022-11-18 19:52:08,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:52:08,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 19:52:08,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:52:08,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 19:52:08,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-11-18 19:52:08,572 INFO L87 Difference]: Start difference. First operand 237 states and 288 transitions. Second operand has 11 states, 11 states have (on average 2.272727272727273) internal successors, (25), 7 states have internal predecessors, (25), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:52:11,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:52:11,443 INFO L93 Difference]: Finished difference Result 327 states and 393 transitions. [2022-11-18 19:52:11,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 19:52:11,447 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.272727272727273) internal successors, (25), 7 states have internal predecessors, (25), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2022-11-18 19:52:11,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:52:11,449 INFO L225 Difference]: With dead ends: 327 [2022-11-18 19:52:11,449 INFO L226 Difference]: Without dead ends: 321 [2022-11-18 19:52:11,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2022-11-18 19:52:11,451 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 266 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 730 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 109 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-18 19:52:11,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 475 Invalid, 871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 730 Invalid, 0 Unknown, 109 Unchecked, 2.4s Time] [2022-11-18 19:52:11,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2022-11-18 19:52:11,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 266. [2022-11-18 19:52:11,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 230 states have (on average 1.2260869565217392) internal successors, (282), 244 states have internal predecessors, (282), 28 states have call successors, (28), 10 states have call predecessors, (28), 7 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-18 19:52:11,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 321 transitions. [2022-11-18 19:52:11,519 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 321 transitions. Word has length 29 [2022-11-18 19:52:11,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:52:11,519 INFO L495 AbstractCegarLoop]: Abstraction has 266 states and 321 transitions. [2022-11-18 19:52:11,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.272727272727273) internal successors, (25), 7 states have internal predecessors, (25), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:52:11,520 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 321 transitions. [2022-11-18 19:52:11,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-18 19:52:11,521 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:52:11,521 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:52:11,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-18 19:52:11,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:52:11,735 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:52:11,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:52:11,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1765703232, now seen corresponding path program 1 times [2022-11-18 19:52:11,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:52:11,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [798694957] [2022-11-18 19:52:11,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:52:11,737 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:52:11,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:52:11,738 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 19:52:11,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-18 19:52:11,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:52:11,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 70 conjunts are in the unsatisfiable core [2022-11-18 19:52:11,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:52:12,082 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-18 19:52:12,082 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-11-18 19:52:12,148 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 14 treesize of output 16 [2022-11-18 19:52:12,167 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 14 treesize of output 16 [2022-11-18 19:52:12,186 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 19:52:12,198 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 19:52:12,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:52:12,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:52:12,931 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:52:12,953 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-18 19:52:12,954 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 193 treesize of output 81 [2022-11-18 19:52:12,964 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 67 [2022-11-18 19:52:13,001 INFO L321 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2022-11-18 19:52:13,002 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 89 treesize of output 66 [2022-11-18 19:52:13,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:52:13,222 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 21 treesize of output 23 [2022-11-18 19:52:13,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:52:13,234 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 23 [2022-11-18 19:52:13,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:52:13,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:52:13,251 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:52:13,255 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-18 19:52:13,256 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 63 treesize of output 51 [2022-11-18 19:52:13,930 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-18 19:52:14,080 INFO L321 Elim1Store]: treesize reduction 22, result has 12.0 percent of original size [2022-11-18 19:52:14,080 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 45 treesize of output 23 [2022-11-18 19:52:14,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:52:14,187 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:52:14,187 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:52:14,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [798694957] [2022-11-18 19:52:14,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [798694957] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:52:14,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:52:14,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-18 19:52:14,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754142712] [2022-11-18 19:52:14,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:52:14,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:52:14,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:52:14,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:52:14,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:52:14,189 INFO L87 Difference]: Start difference. First operand 266 states and 321 transitions. Second operand has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 8 states have internal predecessors, (28), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:52:17,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:52:17,656 INFO L93 Difference]: Finished difference Result 323 states and 387 transitions. [2022-11-18 19:52:17,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 19:52:17,657 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 8 states have internal predecessors, (28), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2022-11-18 19:52:17,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:52:17,659 INFO L225 Difference]: With dead ends: 323 [2022-11-18 19:52:17,659 INFO L226 Difference]: Without dead ends: 320 [2022-11-18 19:52:17,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2022-11-18 19:52:17,660 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 260 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 718 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 1030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 282 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-18 19:52:17,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 493 Invalid, 1030 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 718 Invalid, 0 Unknown, 282 Unchecked, 2.5s Time] [2022-11-18 19:52:17,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2022-11-18 19:52:17,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 269. [2022-11-18 19:52:17,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 233 states have (on average 1.2188841201716738) internal successors, (284), 247 states have internal predecessors, (284), 28 states have call successors, (28), 10 states have call predecessors, (28), 7 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-18 19:52:17,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 323 transitions. [2022-11-18 19:52:17,724 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 323 transitions. Word has length 32 [2022-11-18 19:52:17,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:52:17,725 INFO L495 AbstractCegarLoop]: Abstraction has 269 states and 323 transitions. [2022-11-18 19:52:17,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 8 states have internal predecessors, (28), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:52:17,725 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 323 transitions. [2022-11-18 19:52:17,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-18 19:52:17,726 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:52:17,726 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:52:17,745 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-11-18 19:52:17,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:52:17,941 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:52:17,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:52:17,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1378941963, now seen corresponding path program 1 times [2022-11-18 19:52:17,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:52:17,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [647251386] [2022-11-18 19:52:17,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:52:17,942 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:52:17,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:52:17,942 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 19:52:17,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-18 19:52:18,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:52:18,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 78 conjunts are in the unsatisfiable core [2022-11-18 19:52:18,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:52:18,313 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-18 19:52:18,313 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-11-18 19:52:18,381 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 14 treesize of output 16 [2022-11-18 19:52:18,391 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 14 treesize of output 16 [2022-11-18 19:52:18,412 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 19:52:18,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 19:52:19,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:52:19,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:52:19,332 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:52:19,395 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-18 19:52:19,395 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 290 treesize of output 158 [2022-11-18 19:52:19,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:52:19,420 INFO L321 Elim1Store]: treesize reduction 23, result has 39.5 percent of original size [2022-11-18 19:52:19,421 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 188 treesize of output 64 [2022-11-18 19:52:19,679 INFO L321 Elim1Store]: treesize reduction 115, result has 8.7 percent of original size [2022-11-18 19:52:19,680 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 63 treesize of output 67 [2022-11-18 19:52:19,701 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-18 19:52:19,702 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 44 [2022-11-18 19:52:19,706 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 42 [2022-11-18 19:52:20,193 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 18 [2022-11-18 19:52:20,386 INFO L321 Elim1Store]: treesize reduction 29, result has 21.6 percent of original size [2022-11-18 19:52:20,386 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 23 [2022-11-18 19:52:20,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:52:20,461 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:52:20,461 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:52:20,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [647251386] [2022-11-18 19:52:20,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [647251386] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:52:20,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:52:20,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-18 19:52:20,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194072583] [2022-11-18 19:52:20,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:52:20,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:52:20,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:52:20,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:52:20,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:52:20,463 INFO L87 Difference]: Start difference. First operand 269 states and 323 transitions. Second operand has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 8 states have internal predecessors, (31), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:52:24,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:52:24,857 INFO L93 Difference]: Finished difference Result 322 states and 384 transitions. [2022-11-18 19:52:24,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 19:52:24,858 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 8 states have internal predecessors, (31), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2022-11-18 19:52:24,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:52:24,860 INFO L225 Difference]: With dead ends: 322 [2022-11-18 19:52:24,860 INFO L226 Difference]: Without dead ends: 319 [2022-11-18 19:52:24,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2022-11-18 19:52:24,861 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 253 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 1024 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 180 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-18 19:52:24,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 524 Invalid, 1024 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 811 Invalid, 0 Unknown, 180 Unchecked, 3.6s Time] [2022-11-18 19:52:24,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2022-11-18 19:52:24,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 272. [2022-11-18 19:52:24,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 236 states have (on average 1.2118644067796611) internal successors, (286), 250 states have internal predecessors, (286), 28 states have call successors, (28), 10 states have call predecessors, (28), 7 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-18 19:52:24,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 325 transitions. [2022-11-18 19:52:24,914 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 325 transitions. Word has length 35 [2022-11-18 19:52:24,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:52:24,914 INFO L495 AbstractCegarLoop]: Abstraction has 272 states and 325 transitions. [2022-11-18 19:52:24,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 8 states have internal predecessors, (31), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:52:24,915 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 325 transitions. [2022-11-18 19:52:24,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-18 19:52:24,916 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:52:24,916 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-18 19:52:24,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-18 19:52:25,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:52:25,119 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:52:25,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:52:25,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1206750989, now seen corresponding path program 1 times [2022-11-18 19:52:25,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:52:25,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1842160823] [2022-11-18 19:52:25,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:52:25,120 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:52:25,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:52:25,121 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 19:52:25,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-18 19:52:25,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:52:25,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 93 conjunts are in the unsatisfiable core [2022-11-18 19:52:25,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:52:25,548 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-11-18 19:52:25,548 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2022-11-18 19:52:25,626 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 14 treesize of output 16 [2022-11-18 19:52:25,636 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 14 treesize of output 16 [2022-11-18 19:52:25,654 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 19:52:25,659 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 19:52:26,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:52:26,330 INFO L321 Elim1Store]: treesize reduction 76, result has 1.3 percent of original size [2022-11-18 19:52:26,331 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 195 treesize of output 211 [2022-11-18 19:52:26,342 INFO L350 Elim1Store]: Elim1 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 188 treesize of output 157 [2022-11-18 19:52:26,359 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-18 19:52:26,360 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 105 treesize of output 37 [2022-11-18 19:52:26,401 INFO L350 Elim1Store]: Elim1 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 8 treesize of output 7 [2022-11-18 19:52:26,540 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-18 19:52:26,541 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 88 treesize of output 69 [2022-11-18 19:52:26,554 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-18 19:52:26,582 INFO L321 Elim1Store]: treesize reduction 26, result has 35.0 percent of original size [2022-11-18 19:52:26,582 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 40 [2022-11-18 19:52:26,587 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-18 19:52:26,728 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-18 19:52:26,729 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-11-18 19:52:26,841 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 16 treesize of output 18 [2022-11-18 19:52:26,854 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 15 treesize of output 17 [2022-11-18 19:52:26,871 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2022-11-18 19:52:26,878 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-18 19:52:27,430 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 35 [2022-11-18 19:52:27,484 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-18 19:52:27,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 73 [2022-11-18 19:52:27,499 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 121 treesize of output 88 [2022-11-18 19:52:27,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:52:27,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:52:27,694 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 36 [2022-11-18 19:52:27,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:52:27,701 INFO L350 Elim1Store]: Elim1 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 16 treesize of output 20 [2022-11-18 19:52:28,025 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-18 19:52:28,082 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:52:28,083 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:52:29,520 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:52:29,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1842160823] [2022-11-18 19:52:29,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1842160823] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:52:29,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2108802457] [2022-11-18 19:52:29,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:52:29,520 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-18 19:52:29,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/cvc4 [2022-11-18 19:52:29,522 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-18 19:52:29,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2022-11-18 19:52:31,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:52:31,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 69 conjunts are in the unsatisfiable core [2022-11-18 19:52:31,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:52:31,554 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-11-18 19:52:31,555 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2022-11-18 19:52:31,731 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 14 treesize of output 16 [2022-11-18 19:52:31,740 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 14 treesize of output 16 [2022-11-18 19:52:31,761 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 19:52:31,765 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 19:52:32,389 INFO L321 Elim1Store]: treesize reduction 77, result has 3.8 percent of original size [2022-11-18 19:52:32,389 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 54 treesize of output 77 [2022-11-18 19:52:32,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:52:32,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 48 [2022-11-18 19:52:32,413 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-11-18 19:52:32,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:52:32,745 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 23 treesize of output 25 [2022-11-18 19:52:32,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:52:32,753 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 31 [2022-11-18 19:52:33,031 INFO L321 Elim1Store]: treesize reduction 12, result has 55.6 percent of original size [2022-11-18 19:52:33,031 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 28 [2022-11-18 19:52:33,190 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 40 treesize of output 36 [2022-11-18 19:52:33,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:52:33,217 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 8 [2022-11-18 19:52:33,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:52:33,674 INFO L321 Elim1Store]: treesize reduction 66, result has 14.3 percent of original size [2022-11-18 19:52:33,674 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 92 treesize of output 128 [2022-11-18 19:52:33,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:52:33,690 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 84 [2022-11-18 19:52:33,701 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 11 [2022-11-18 19:52:33,738 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 26 [2022-11-18 19:52:33,744 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-18 19:52:33,976 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 27 treesize of output 27 [2022-11-18 19:52:34,490 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2022-11-18 19:52:34,599 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:52:34,599 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:52:36,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2108802457] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:52:36,072 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:52:36,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2022-11-18 19:52:36,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065374160] [2022-11-18 19:52:36,073 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:52:36,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-11-18 19:52:36,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:52:36,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-11-18 19:52:36,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=1417, Unknown=93, NotChecked=0, Total=1640 [2022-11-18 19:52:36,075 INFO L87 Difference]: Start difference. First operand 272 states and 325 transitions. Second operand has 29 states, 29 states have (on average 2.103448275862069) internal successors, (61), 18 states have internal predecessors, (61), 7 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-18 19:52:55,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:52:55,692 INFO L93 Difference]: Finished difference Result 419 states and 497 transitions. [2022-11-18 19:52:55,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-18 19:52:55,692 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.103448275862069) internal successors, (61), 18 states have internal predecessors, (61), 7 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 38 [2022-11-18 19:52:55,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:52:55,695 INFO L225 Difference]: With dead ends: 419 [2022-11-18 19:52:55,695 INFO L226 Difference]: Without dead ends: 416 [2022-11-18 19:52:55,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 70 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 595 ImplicationChecksByTransitivity, 20.9s TimeCoverageRelationStatistics Valid=370, Invalid=2679, Unknown=143, NotChecked=0, Total=3192 [2022-11-18 19:52:55,698 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 871 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 1480 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 871 SdHoareTripleChecker+Valid, 821 SdHoareTripleChecker+Invalid, 2751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 1480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1137 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-18 19:52:55,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [871 Valid, 821 Invalid, 2751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 1480 Invalid, 0 Unknown, 1137 Unchecked, 3.9s Time] [2022-11-18 19:52:55,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2022-11-18 19:52:55,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 356. [2022-11-18 19:52:55,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 312 states have (on average 1.2115384615384615) internal successors, (378), 327 states have internal predecessors, (378), 33 states have call successors, (33), 13 states have call predecessors, (33), 10 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-18 19:52:55,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 426 transitions. [2022-11-18 19:52:55,776 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 426 transitions. Word has length 38 [2022-11-18 19:52:55,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:52:55,776 INFO L495 AbstractCegarLoop]: Abstraction has 356 states and 426 transitions. [2022-11-18 19:52:55,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.103448275862069) internal successors, (61), 18 states have internal predecessors, (61), 7 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-18 19:52:55,776 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 426 transitions. [2022-11-18 19:52:55,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-18 19:52:55,777 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:52:55,778 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:52:55,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2022-11-18 19:52:55,996 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-18 19:52:56,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:52:56,186 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:52:56,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:52:56,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1509417904, now seen corresponding path program 1 times [2022-11-18 19:52:56,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:52:56,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [633524458] [2022-11-18 19:52:56,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:52:56,187 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:52:56,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:52:56,188 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 19:52:56,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-18 19:52:56,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:52:56,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 61 conjunts are in the unsatisfiable core [2022-11-18 19:52:56,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:52:56,507 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-18 19:52:56,507 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-11-18 19:52:56,595 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-18 19:52:56,603 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-18 19:52:56,616 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 19:52:56,628 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 19:52:56,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:52:56,971 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:52:56,989 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-18 19:52:56,990 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 137 treesize of output 41 [2022-11-18 19:52:56,996 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-18 19:52:57,115 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-18 19:52:57,115 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 44 [2022-11-18 19:52:57,126 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-18 19:52:57,455 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2022-11-18 19:52:57,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:52:57,587 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:52:57,588 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:52:57,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [633524458] [2022-11-18 19:52:57,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [633524458] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:52:57,588 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:52:57,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-18 19:52:57,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954939158] [2022-11-18 19:52:57,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:52:57,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:52:57,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:52:57,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:52:57,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:52:57,590 INFO L87 Difference]: Start difference. First operand 356 states and 426 transitions. Second operand has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 8 states have internal predecessors, (34), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:53:00,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:00,709 INFO L93 Difference]: Finished difference Result 401 states and 478 transitions. [2022-11-18 19:53:00,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 19:53:00,709 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 8 states have internal predecessors, (34), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2022-11-18 19:53:00,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:00,711 INFO L225 Difference]: With dead ends: 401 [2022-11-18 19:53:00,712 INFO L226 Difference]: Without dead ends: 398 [2022-11-18 19:53:00,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2022-11-18 19:53:00,713 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 287 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 749 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 169 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:00,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 575 Invalid, 943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 749 Invalid, 0 Unknown, 169 Unchecked, 2.4s Time] [2022-11-18 19:53:00,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2022-11-18 19:53:00,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 359. [2022-11-18 19:53:00,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 315 states have (on average 1.2063492063492063) internal successors, (380), 330 states have internal predecessors, (380), 33 states have call successors, (33), 13 states have call predecessors, (33), 10 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-18 19:53:00,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 428 transitions. [2022-11-18 19:53:00,820 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 428 transitions. Word has length 38 [2022-11-18 19:53:00,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:00,821 INFO L495 AbstractCegarLoop]: Abstraction has 359 states and 428 transitions. [2022-11-18 19:53:00,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 8 states have internal predecessors, (34), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:53:00,821 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 428 transitions. [2022-11-18 19:53:00,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-18 19:53:00,827 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:00,827 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-18 19:53:00,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-18 19:53:01,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:53:01,047 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:53:01,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:01,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1191113126, now seen corresponding path program 1 times [2022-11-18 19:53:01,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:53:01,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [386851513] [2022-11-18 19:53:01,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:01,048 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:53:01,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:53:01,049 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 19:53:01,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-18 19:53:01,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:01,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 85 conjunts are in the unsatisfiable core [2022-11-18 19:53:01,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:53:01,611 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-11-18 19:53:01,611 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2022-11-18 19:53:01,697 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 14 treesize of output 16 [2022-11-18 19:53:01,709 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 14 treesize of output 16 [2022-11-18 19:53:01,733 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 19:53:01,742 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 19:53:02,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:53:02,277 INFO L321 Elim1Store]: treesize reduction 76, result has 1.3 percent of original size [2022-11-18 19:53:02,277 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 112 treesize of output 138 [2022-11-18 19:53:02,290 INFO L350 Elim1Store]: Elim1 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 115 treesize of output 94 [2022-11-18 19:53:02,297 INFO L350 Elim1Store]: Elim1 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 8 treesize of output 7 [2022-11-18 19:53:02,315 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 11 [2022-11-18 19:53:02,326 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 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 [2022-11-18 19:53:02,336 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 54 [2022-11-18 19:53:02,366 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 19:53:02,366 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 70 treesize of output 55 [2022-11-18 19:53:02,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:53:02,492 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 19 treesize of output 21 [2022-11-18 19:53:02,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:53:02,501 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 23 [2022-11-18 19:53:02,523 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 19:53:02,523 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 22 [2022-11-18 19:53:02,685 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-18 19:53:02,686 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-11-18 19:53:02,780 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 16 treesize of output 18 [2022-11-18 19:53:02,793 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 15 treesize of output 17 [2022-11-18 19:53:02,815 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-18 19:53:02,830 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2022-11-18 19:53:03,205 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 35 [2022-11-18 19:53:03,245 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-18 19:53:03,246 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 68 [2022-11-18 19:53:03,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:53:03,276 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-18 19:53:03,277 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 48 treesize of output 24 [2022-11-18 19:53:03,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:53:03,287 INFO L350 Elim1Store]: Elim1 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 16 treesize of output 20 [2022-11-18 19:53:03,394 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 16 treesize of output 18 [2022-11-18 19:53:03,784 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-18 19:53:03,851 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:53:03,851 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:53:05,422 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:53:05,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [386851513] [2022-11-18 19:53:05,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [386851513] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:53:05,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [344656943] [2022-11-18 19:53:05,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:05,423 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-18 19:53:05,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/cvc4 [2022-11-18 19:53:05,424 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-18 19:53:05,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2022-11-18 19:53:07,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:07,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 81 conjunts are in the unsatisfiable core [2022-11-18 19:53:07,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:53:07,254 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-11-18 19:53:07,254 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2022-11-18 19:53:07,419 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 14 treesize of output 16 [2022-11-18 19:53:07,428 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 14 treesize of output 16 [2022-11-18 19:53:07,456 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 19:53:07,460 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 19:53:08,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:53:08,484 INFO L321 Elim1Store]: treesize reduction 76, result has 1.3 percent of original size [2022-11-18 19:53:08,485 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 112 treesize of output 138 [2022-11-18 19:53:08,496 INFO L350 Elim1Store]: Elim1 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 115 treesize of output 94 [2022-11-18 19:53:08,507 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 54 [2022-11-18 19:53:08,546 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 19:53:08,546 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 70 treesize of output 55 [2022-11-18 19:53:08,574 INFO L350 Elim1Store]: Elim1 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 8 treesize of output 7 [2022-11-18 19:53:08,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:53:08,890 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 17 treesize of output 19 [2022-11-18 19:53:08,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:53:08,895 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 23 [2022-11-18 19:53:08,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:53:08,916 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 23 [2022-11-18 19:53:08,922 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2022-11-18 19:53:09,158 INFO L321 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2022-11-18 19:53:09,158 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 26 [2022-11-18 19:53:09,310 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 16 treesize of output 18 [2022-11-18 19:53:09,318 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 23 treesize of output 23 [2022-11-18 19:53:09,342 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2022-11-18 19:53:09,357 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-18 19:53:09,609 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 32 [2022-11-18 19:53:09,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:53:09,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:53:09,617 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2022-11-18 19:53:09,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:53:09,622 INFO L350 Elim1Store]: Elim1 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 16 treesize of output 20 [2022-11-18 19:53:09,635 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 16 treesize of output 18 [2022-11-18 19:53:09,779 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-18 19:53:09,783 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:53:09,783 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:53:10,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [344656943] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:53:10,562 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:53:10,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 22 [2022-11-18 19:53:10,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606837601] [2022-11-18 19:53:10,562 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:53:10,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-18 19:53:10,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:53:10,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-18 19:53:10,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=653, Unknown=56, NotChecked=0, Total=812 [2022-11-18 19:53:10,564 INFO L87 Difference]: Start difference. First operand 359 states and 428 transitions. Second operand has 23 states, 23 states have (on average 2.217391304347826) internal successors, (51), 15 states have internal predecessors, (51), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-18 19:53:20,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:20,439 INFO L93 Difference]: Finished difference Result 417 states and 491 transitions. [2022-11-18 19:53:20,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-18 19:53:20,439 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.217391304347826) internal successors, (51), 15 states have internal predecessors, (51), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 41 [2022-11-18 19:53:20,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:20,441 INFO L225 Difference]: With dead ends: 417 [2022-11-18 19:53:20,442 INFO L226 Difference]: Without dead ends: 414 [2022-11-18 19:53:20,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 91 SyntacticMatches, 4 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=233, Invalid=1317, Unknown=90, NotChecked=0, Total=1640 [2022-11-18 19:53:20,443 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 593 mSDsluCounter, 653 mSDsCounter, 0 mSdLazyCounter, 1156 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 599 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 2091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 859 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:20,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [599 Valid, 692 Invalid, 2091 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1156 Invalid, 0 Unknown, 859 Unchecked, 3.0s Time] [2022-11-18 19:53:20,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2022-11-18 19:53:20,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 359. [2022-11-18 19:53:20,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 315 states have (on average 1.2031746031746031) internal successors, (379), 330 states have internal predecessors, (379), 33 states have call successors, (33), 13 states have call predecessors, (33), 10 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-18 19:53:20,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 427 transitions. [2022-11-18 19:53:20,535 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 427 transitions. Word has length 41 [2022-11-18 19:53:20,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:20,536 INFO L495 AbstractCegarLoop]: Abstraction has 359 states and 427 transitions. [2022-11-18 19:53:20,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.217391304347826) internal successors, (51), 15 states have internal predecessors, (51), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-18 19:53:20,536 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 427 transitions. [2022-11-18 19:53:20,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-18 19:53:20,537 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:20,537 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:20,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-18 19:53:20,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2022-11-18 19:53:20,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/cvc4 --incremental --print-success --lang smt [2022-11-18 19:53:20,941 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:53:20,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:20,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1046948214, now seen corresponding path program 1 times [2022-11-18 19:53:20,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:53:20,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1862521054] [2022-11-18 19:53:20,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:20,942 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:53:20,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:53:20,943 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 19:53:20,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-18 19:53:21,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:21,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 85 conjunts are in the unsatisfiable core [2022-11-18 19:53:21,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:53:21,364 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-18 19:53:21,364 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-11-18 19:53:21,421 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 14 treesize of output 16 [2022-11-18 19:53:21,432 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 14 treesize of output 16 [2022-11-18 19:53:21,448 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 19:53:21,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 19:53:22,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:53:22,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:53:22,463 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:53:22,494 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-18 19:53:22,495 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 292 treesize of output 160 [2022-11-18 19:53:22,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:53:22,519 INFO L321 Elim1Store]: treesize reduction 25, result has 37.5 percent of original size [2022-11-18 19:53:22,519 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 190 treesize of output 66 [2022-11-18 19:53:22,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:53:22,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:53:22,746 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:53:22,750 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-18 19:53:22,751 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 63 treesize of output 67 [2022-11-18 19:53:22,799 INFO L321 Elim1Store]: treesize reduction 123, result has 8.2 percent of original size [2022-11-18 19:53:22,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 77 [2022-11-18 19:53:25,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:53:25,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:53:25,285 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:53:25,335 INFO L321 Elim1Store]: treesize reduction 94, result has 6.9 percent of original size [2022-11-18 19:53:25,335 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 12 case distinctions, treesize of input 120 treesize of output 70 [2022-11-18 19:53:25,380 INFO L321 Elim1Store]: treesize reduction 129, result has 5.8 percent of original size [2022-11-18 19:53:25,381 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 12 case distinctions, treesize of input 74 treesize of output 39 [2022-11-18 19:53:25,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:53:25,680 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:53:25,681 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:53:25,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1862521054] [2022-11-18 19:53:25,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1862521054] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:53:25,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:53:25,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 19:53:25,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145399869] [2022-11-18 19:53:25,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:53:25,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 19:53:25,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:53:25,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 19:53:25,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-11-18 19:53:25,683 INFO L87 Difference]: Start difference. First operand 359 states and 427 transitions. Second operand has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 9 states have internal predecessors, (37), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:53:27,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:27,396 INFO L93 Difference]: Finished difference Result 362 states and 429 transitions. [2022-11-18 19:53:27,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 19:53:27,396 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 9 states have internal predecessors, (37), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 41 [2022-11-18 19:53:27,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:27,398 INFO L225 Difference]: With dead ends: 362 [2022-11-18 19:53:27,398 INFO L226 Difference]: Without dead ends: 359 [2022-11-18 19:53:27,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2022-11-18 19:53:27,399 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 9 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 933 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 270 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:27,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 933 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 164 Invalid, 0 Unknown, 270 Unchecked, 1.3s Time] [2022-11-18 19:53:27,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2022-11-18 19:53:27,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 359. [2022-11-18 19:53:27,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 315 states have (on average 1.2) internal successors, (378), 330 states have internal predecessors, (378), 33 states have call successors, (33), 13 states have call predecessors, (33), 10 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-18 19:53:27,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 426 transitions. [2022-11-18 19:53:27,502 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 426 transitions. Word has length 41 [2022-11-18 19:53:27,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:27,502 INFO L495 AbstractCegarLoop]: Abstraction has 359 states and 426 transitions. [2022-11-18 19:53:27,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 9 states have internal predecessors, (37), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:53:27,503 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 426 transitions. [2022-11-18 19:53:27,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-18 19:53:27,504 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:27,504 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-18 19:53:27,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-18 19:53:27,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:53:27,707 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:53:27,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:27,707 INFO L85 PathProgramCache]: Analyzing trace with hash -804606984, now seen corresponding path program 1 times [2022-11-18 19:53:27,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:53:27,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1107816809] [2022-11-18 19:53:27,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:27,708 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:53:27,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:53:27,709 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 19:53:27,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-18 19:53:28,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:28,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 128 conjunts are in the unsatisfiable core [2022-11-18 19:53:28,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:53:28,273 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-11-18 19:53:28,274 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2022-11-18 19:53:28,366 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 14 treesize of output 16 [2022-11-18 19:53:28,384 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 14 treesize of output 16 [2022-11-18 19:53:28,404 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 19:53:28,426 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 19:53:30,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:53:30,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:53:30,007 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:53:30,035 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-18 19:53:30,036 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 212 treesize of output 96 [2022-11-18 19:53:30,062 INFO L321 Elim1Store]: treesize reduction 19, result has 26.9 percent of original size [2022-11-18 19:53:30,063 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 102 treesize of output 65 [2022-11-18 19:53:30,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:53:30,073 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 55 [2022-11-18 19:53:30,095 INFO L321 Elim1Store]: treesize reduction 33, result has 28.3 percent of original size [2022-11-18 19:53:30,095 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 57 [2022-11-18 19:53:30,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:53:30,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:53:30,353 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:53:30,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:53:30,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:53:30,361 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-18 19:53:30,362 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 127 treesize of output 93 [2022-11-18 19:53:30,375 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 27 treesize of output 27 [2022-11-18 19:53:30,754 INFO L321 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2022-11-18 19:53:30,755 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 26 [2022-11-18 19:53:31,072 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-18 19:53:31,073 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 58 treesize of output 52 [2022-11-18 19:53:31,105 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-18 19:53:31,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:53:31,145 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:53:31,148 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-18 19:53:31,148 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 44 treesize of output 17 [2022-11-18 19:53:31,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:53:31,158 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-18 19:53:33,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:53:33,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:53:33,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:53:33,207 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:53:33,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:53:33,211 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:53:33,355 INFO L321 Elim1Store]: treesize reduction 213, result has 9.0 percent of original size [2022-11-18 19:53:33,355 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 231 treesize of output 107 [2022-11-18 19:53:33,366 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 102 [2022-11-18 19:53:33,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:53:33,378 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 46 [2022-11-18 19:53:33,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:53:33,389 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 36 [2022-11-18 19:53:33,733 INFO L321 Elim1Store]: treesize reduction 31, result has 13.9 percent of original size [2022-11-18 19:53:33,733 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 67 treesize of output 59 [2022-11-18 19:53:33,742 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 19:53:33,742 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 68 treesize of output 50 [2022-11-18 19:53:33,749 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-18 19:53:34,737 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-18 19:53:35,021 INFO L321 Elim1Store]: treesize reduction 22, result has 12.0 percent of original size [2022-11-18 19:53:35,022 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 62 treesize of output 28 [2022-11-18 19:53:35,188 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:53:35,188 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:53:36,072 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1649 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1648 (Array (_ BitVec 32) (_ BitVec 32)))) (not (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_1649)) (.cse2 (bvadd (_ bv4 32) |c_~#gl_list~0.offset|))) (let ((.cse1 (select (select .cse0 |c_~#gl_list~0.base|) .cse2))) (= (select (select .cse0 .cse1) (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_1648) |c_~#gl_list~0.base|) .cse2)) .cse1))))) is different from false [2022-11-18 19:53:41,149 WARN L233 SmtUtils]: Spent 5.07s on a formula simplification that was a NOOP. DAG size: 130 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-18 19:53:46,658 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1649 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1687 (Array (_ BitVec 32) (_ BitVec 32))) (|v_list_add___list_add_~new#1.offset_17| (_ BitVec 32)) (v_ArrVal_1685 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1686 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1648 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1684 (_ BitVec 32)) (v_ArrVal_1683 (_ BitVec 32))) (not (let ((.cse2 (select (select |c_#memory_$Pointer$.base| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)) (.cse3 (bvadd (_ bv4 32) (select (select |c_#memory_$Pointer$.offset| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)))) (let ((.cse0 (store (let ((.cse5 (let ((.cse6 (store |c_#memory_$Pointer$.base| .cse2 (store (select |c_#memory_$Pointer$.base| .cse2) .cse3 |c_ULTIMATE.start_gl_insert_~node~1#1.base|)))) (store .cse6 |c_ULTIMATE.start_gl_insert_~node~1#1.base| (store (store (select .cse6 |c_ULTIMATE.start_gl_insert_~node~1#1.base|) |v_list_add___list_add_~new#1.offset_17| .cse2) (bvadd (_ bv4 32) |v_list_add___list_add_~new#1.offset_17|) |c_~#gl_list~0.base|))))) (store .cse5 |c_~#gl_list~0.base| (store (select .cse5 |c_~#gl_list~0.base|) |c_~#gl_list~0.offset| v_ArrVal_1683))) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_1649)) (.cse4 (bvadd (_ bv4 32) |c_~#gl_list~0.offset|))) (let ((.cse1 (select (select .cse0 |c_~#gl_list~0.base|) .cse4))) (= (select (select .cse0 .cse1) (select (select (store (store (store (store |c_#memory_$Pointer$.offset| .cse2 v_ArrVal_1687) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_1685) |c_~#gl_list~0.base| (store (select (store (store |c_#memory_$Pointer$.offset| .cse2 (store (select |c_#memory_$Pointer$.offset| .cse2) .cse3 |v_list_add___list_add_~new#1.offset_17|)) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_1686) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset| v_ArrVal_1684)) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_1648) |c_~#gl_list~0.base|) .cse4)) .cse1)))))) is different from false [2022-11-18 19:53:46,691 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:53:46,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1107816809] [2022-11-18 19:53:46,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1107816809] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:53:46,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1944001970] [2022-11-18 19:53:46,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:46,692 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-18 19:53:46,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/cvc4 [2022-11-18 19:53:46,693 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-18 19:53:46,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2022-11-18 19:53:48,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:48,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 97 conjunts are in the unsatisfiable core [2022-11-18 19:53:48,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:53:48,307 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-11-18 19:53:48,308 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2022-11-18 19:53:48,373 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 14 treesize of output 16 [2022-11-18 19:53:48,381 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 14 treesize of output 16 [2022-11-18 19:53:48,425 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 19:53:48,440 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 19:53:55,123 INFO L321 Elim1Store]: treesize reduction 174, result has 4.9 percent of original size [2022-11-18 19:53:55,124 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 198 treesize of output 242 [2022-11-18 19:53:55,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:53:55,141 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 207 treesize of output 180 [2022-11-18 19:53:55,166 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 69 [2022-11-18 19:53:55,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:53:55,193 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 45 treesize of output 23 [2022-11-18 19:53:55,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:53:55,238 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 74 [2022-11-18 19:53:55,289 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 19 [2022-11-18 19:53:55,325 INFO L350 Elim1Store]: Elim1 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 21 treesize of output 25 [2022-11-18 19:53:55,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:53:55,352 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 32 [2022-11-18 19:53:55,390 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-18 19:53:55,390 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 36 [2022-11-18 19:53:55,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:53:55,502 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 26 [2022-11-18 19:53:55,510 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-18 19:53:55,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:53:55,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:53:55,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:53:55,933 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:53:55,938 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-18 19:53:55,938 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 88 treesize of output 64 [2022-11-18 19:53:55,951 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 27 treesize of output 27 [2022-11-18 19:53:56,441 INFO L321 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2022-11-18 19:53:56,441 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 26 [2022-11-18 19:53:56,761 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-18 19:53:56,761 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 47 [2022-11-18 19:53:56,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-18 19:53:56,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:53:56,805 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-18 19:53:56,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:53:56,821 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:53:56,824 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-18 19:53:56,824 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 14 [2022-11-18 19:53:57,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:53:57,852 INFO L321 Elim1Store]: treesize reduction 32, result has 13.5 percent of original size [2022-11-18 19:53:57,852 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 116 [2022-11-18 19:53:57,913 INFO L321 Elim1Store]: treesize reduction 80, result has 5.9 percent of original size [2022-11-18 19:53:57,913 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 123 treesize of output 140 [2022-11-18 19:53:57,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:53:57,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 81 [2022-11-18 19:53:57,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:53:57,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:53:57,944 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 55 [2022-11-18 19:53:57,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:53:57,956 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 39 [2022-11-18 19:53:57,967 INFO L350 Elim1Store]: Elim1 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 20 treesize of output 30 [2022-11-18 19:53:57,982 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 11 [2022-11-18 19:53:58,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:53:58,370 INFO L321 Elim1Store]: treesize reduction 31, result has 13.9 percent of original size [2022-11-18 19:53:58,371 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 1779 treesize of output 1503 [2022-11-18 19:53:58,398 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1738 treesize of output 1698 [2022-11-18 19:53:58,412 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 1708 treesize of output 1626 [2022-11-18 19:53:58,436 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-18 19:53:59,486 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-18 19:53:59,724 INFO L321 Elim1Store]: treesize reduction 22, result has 12.0 percent of original size [2022-11-18 19:53:59,724 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 20 [2022-11-18 19:53:59,732 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:53:59,732 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:53:59,831 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1865 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1866 (Array (_ BitVec 32) (_ BitVec 32)))) (not (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_1865)) (.cse2 (bvadd (_ bv4 32) |c_~#gl_list~0.offset|))) (let ((.cse1 (select (select .cse0 |c_~#gl_list~0.base|) .cse2))) (= (select (select .cse0 .cse1) (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_1866) |c_~#gl_list~0.base|) .cse2)) .cse1))))) is different from false [2022-11-18 19:54:03,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1944001970] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:54:03,480 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:54:03,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 26 [2022-11-18 19:54:03,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602532640] [2022-11-18 19:54:03,483 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:54:03,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-18 19:54:03,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:54:03,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-18 19:54:03,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=926, Unknown=32, NotChecked=192, Total=1260 [2022-11-18 19:54:03,485 INFO L87 Difference]: Start difference. First operand 359 states and 426 transitions. Second operand has 27 states, 27 states have (on average 2.5555555555555554) internal successors, (69), 18 states have internal predecessors, (69), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-18 19:54:15,210 WARN L233 SmtUtils]: Spent 7.05s on a formula simplification. DAG size of input: 113 DAG size of output: 99 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 19:54:21,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:54:21,609 INFO L93 Difference]: Finished difference Result 462 states and 547 transitions. [2022-11-18 19:54:21,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-18 19:54:21,612 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.5555555555555554) internal successors, (69), 18 states have internal predecessors, (69), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 44 [2022-11-18 19:54:21,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:54:21,617 INFO L225 Difference]: With dead ends: 462 [2022-11-18 19:54:21,617 INFO L226 Difference]: Without dead ends: 456 [2022-11-18 19:54:21,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 97 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 318 ImplicationChecksByTransitivity, 30.7s TimeCoverageRelationStatistics Valid=184, Invalid=1597, Unknown=37, NotChecked=252, Total=2070 [2022-11-18 19:54:21,618 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 231 mSDsluCounter, 1410 mSDsCounter, 0 mSdLazyCounter, 750 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 1548 SdHoareTripleChecker+Invalid, 1761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1005 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:54:21,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 1548 Invalid, 1761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 750 Invalid, 0 Unknown, 1005 Unchecked, 2.2s Time] [2022-11-18 19:54:21,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2022-11-18 19:54:21,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 370. [2022-11-18 19:54:21,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 326 states have (on average 1.1901840490797546) internal successors, (388), 340 states have internal predecessors, (388), 33 states have call successors, (33), 14 states have call predecessors, (33), 10 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-18 19:54:21,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 436 transitions. [2022-11-18 19:54:21,701 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 436 transitions. Word has length 44 [2022-11-18 19:54:21,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:54:21,701 INFO L495 AbstractCegarLoop]: Abstraction has 370 states and 436 transitions. [2022-11-18 19:54:21,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 2.5555555555555554) internal successors, (69), 18 states have internal predecessors, (69), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-18 19:54:21,703 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 436 transitions. [2022-11-18 19:54:21,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-18 19:54:21,704 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:54:21,705 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:54:21,720 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2022-11-18 19:54:21,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-18 19:54:22,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/cvc4 --incremental --print-success --lang smt,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:54:22,115 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:54:22,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:54:22,116 INFO L85 PathProgramCache]: Analyzing trace with hash -595747459, now seen corresponding path program 1 times [2022-11-18 19:54:22,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:54:22,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [982444411] [2022-11-18 19:54:22,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:54:22,116 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:54:22,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:54:22,118 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 19:54:22,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-18 19:54:22,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:22,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 84 conjunts are in the unsatisfiable core [2022-11-18 19:54:22,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:54:22,505 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-18 19:54:22,511 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-11-18 19:54:22,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 14 treesize of output 16 [2022-11-18 19:54:22,596 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 14 treesize of output 16 [2022-11-18 19:54:22,612 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 19:54:22,623 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 19:54:23,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:54:23,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:54:23,473 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:54:23,539 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-18 19:54:23,540 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 290 treesize of output 158 [2022-11-18 19:54:23,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:54:23,578 INFO L321 Elim1Store]: treesize reduction 17, result has 34.6 percent of original size [2022-11-18 19:54:23,578 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 134 treesize of output 52 [2022-11-18 19:54:23,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:54:23,759 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 51 [2022-11-18 19:54:23,795 INFO L321 Elim1Store]: treesize reduction 79, result has 8.1 percent of original size [2022-11-18 19:54:23,796 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 55 treesize of output 59 [2022-11-18 19:54:26,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:54:26,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:54:26,002 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:54:26,021 INFO L321 Elim1Store]: treesize reduction 64, result has 4.5 percent of original size [2022-11-18 19:54:26,021 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 105 treesize of output 53 [2022-11-18 19:54:26,066 INFO L321 Elim1Store]: treesize reduction 71, result has 10.1 percent of original size [2022-11-18 19:54:26,067 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 63 treesize of output 33 [2022-11-18 19:54:26,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:54:26,179 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:54:26,179 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:54:26,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [982444411] [2022-11-18 19:54:26,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [982444411] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:54:26,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:54:26,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 19:54:26,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194971028] [2022-11-18 19:54:26,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:54:26,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 19:54:26,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:54:26,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 19:54:26,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-11-18 19:54:26,181 INFO L87 Difference]: Start difference. First operand 370 states and 436 transitions. Second operand has 13 states, 13 states have (on average 3.076923076923077) internal successors, (40), 9 states have internal predecessors, (40), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:54:28,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:54:28,403 INFO L93 Difference]: Finished difference Result 373 states and 438 transitions. [2022-11-18 19:54:28,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 19:54:28,404 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.076923076923077) internal successors, (40), 9 states have internal predecessors, (40), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2022-11-18 19:54:28,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:54:28,406 INFO L225 Difference]: With dead ends: 373 [2022-11-18 19:54:28,406 INFO L226 Difference]: Without dead ends: 370 [2022-11-18 19:54:28,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2022-11-18 19:54:28,407 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 9 mSDsluCounter, 836 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 941 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 293 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-18 19:54:28,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 941 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 167 Invalid, 0 Unknown, 293 Unchecked, 1.7s Time] [2022-11-18 19:54:28,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2022-11-18 19:54:28,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 370. [2022-11-18 19:54:28,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 326 states have (on average 1.187116564417178) internal successors, (387), 340 states have internal predecessors, (387), 33 states have call successors, (33), 14 states have call predecessors, (33), 10 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-18 19:54:28,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 435 transitions. [2022-11-18 19:54:28,543 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 435 transitions. Word has length 44 [2022-11-18 19:54:28,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:54:28,544 INFO L495 AbstractCegarLoop]: Abstraction has 370 states and 435 transitions. [2022-11-18 19:54:28,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.076923076923077) internal successors, (40), 9 states have internal predecessors, (40), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:54:28,544 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 435 transitions. [2022-11-18 19:54:28,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-18 19:54:28,545 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:54:28,545 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-18 19:54:28,571 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-11-18 19:54:28,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:54:28,760 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:54:28,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:54:28,760 INFO L85 PathProgramCache]: Analyzing trace with hash -55749805, now seen corresponding path program 1 times [2022-11-18 19:54:28,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:54:28,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [798859986] [2022-11-18 19:54:28,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:54:28,761 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:54:28,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:54:28,762 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 19:54:28,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-11-18 19:54:29,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:29,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 121 conjunts are in the unsatisfiable core [2022-11-18 19:54:29,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:54:29,344 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-11-18 19:54:29,344 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2022-11-18 19:54:29,428 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 14 treesize of output 16 [2022-11-18 19:54:29,442 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 14 treesize of output 16 [2022-11-18 19:54:29,479 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 19:54:29,485 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 19:54:31,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:54:31,310 INFO L321 Elim1Store]: treesize reduction 91, result has 12.5 percent of original size [2022-11-18 19:54:31,311 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 274 treesize of output 144 [2022-11-18 19:54:31,356 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-18 19:54:31,356 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 122 treesize of output 48 [2022-11-18 19:54:33,721 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-18 19:54:33,722 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 133 treesize of output 108 [2022-11-18 19:54:33,732 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 58 [2022-11-18 19:54:33,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:54:33,746 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 7 [2022-11-18 19:54:33,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:54:33,765 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 7 [2022-11-18 19:54:34,926 INFO L321 Elim1Store]: treesize reduction 12, result has 55.6 percent of original size [2022-11-18 19:54:34,927 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 28 [2022-11-18 19:54:35,139 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 20 treesize of output 20 [2022-11-18 19:54:35,157 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 40 treesize of output 36 [2022-11-18 19:54:35,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:54:35,185 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 8 [2022-11-18 19:54:35,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:54:35,204 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 3 [2022-11-18 19:54:36,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:54:36,147 INFO L321 Elim1Store]: treesize reduction 191, result has 10.7 percent of original size [2022-11-18 19:54:36,147 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 198 treesize of output 83 [2022-11-18 19:54:36,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:54:36,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:54:36,174 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 47 [2022-11-18 19:54:36,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:54:36,184 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 33 [2022-11-18 19:54:36,354 INFO L321 Elim1Store]: treesize reduction 31, result has 13.9 percent of original size [2022-11-18 19:54:36,354 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 64 treesize of output 62 [2022-11-18 19:54:36,363 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 19:54:36,363 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 83 treesize of output 67 [2022-11-18 19:54:36,384 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 19:54:36,384 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 76 [2022-11-18 19:54:37,079 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 36 [2022-11-18 19:54:37,284 INFO L321 Elim1Store]: treesize reduction 30, result has 9.1 percent of original size [2022-11-18 19:54:37,285 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 25 [2022-11-18 19:54:37,383 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:54:37,384 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:54:38,157 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2204 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2205 (Array (_ BitVec 32) (_ BitVec 32)))) (not (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2204)) (.cse2 (bvadd (_ bv4 32) |c_~#gl_list~0.offset|))) (let ((.cse1 (select (select .cse0 |c_~#gl_list~0.base|) .cse2))) (= (select (select .cse0 .cse1) (bvadd (_ bv4 32) (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2205) |c_~#gl_list~0.base|) .cse2))) .cse1))))) is different from false [2022-11-18 19:54:43,318 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2235 (_ BitVec 32)) (v_ArrVal_2237 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2204 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2238 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2205 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2236 (Array (_ BitVec 32) (_ BitVec 32))) (|v_list_add___list_add_~new#1.offset_23| (_ BitVec 32)) (v_ArrVal_2239 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2234 (_ BitVec 32))) (not (let ((.cse2 (select (select |c_#memory_$Pointer$.base| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (let ((.cse0 (store (let ((.cse4 (let ((.cse5 (store |c_#memory_$Pointer$.base| .cse2 (store (select |c_#memory_$Pointer$.base| .cse2) (bvadd (_ bv4 32) (select (select |c_#memory_$Pointer$.offset| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)) |c_ULTIMATE.start_gl_insert_~node~1#1.base|)))) (store .cse5 |c_ULTIMATE.start_gl_insert_~node~1#1.base| (store (store (select .cse5 |c_ULTIMATE.start_gl_insert_~node~1#1.base|) |v_list_add___list_add_~new#1.offset_23| .cse2) (bvadd (_ bv4 32) |v_list_add___list_add_~new#1.offset_23|) |c_~#gl_list~0.base|))))) (store .cse4 |c_~#gl_list~0.base| (store (select .cse4 |c_~#gl_list~0.base|) |c_~#gl_list~0.offset| v_ArrVal_2235))) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2204)) (.cse3 (bvadd (_ bv4 32) |c_~#gl_list~0.offset|))) (let ((.cse1 (select (select .cse0 |c_~#gl_list~0.base|) .cse3))) (= (select (select .cse0 .cse1) (bvadd (_ bv4 32) (select (select (store (store (store (store |c_#memory_$Pointer$.offset| .cse2 v_ArrVal_2237) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2238) |c_~#gl_list~0.base| (store (select (store (store |c_#memory_$Pointer$.offset| .cse2 v_ArrVal_2236) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2239) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset| v_ArrVal_2234)) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2205) |c_~#gl_list~0.base|) .cse3))) .cse1)))))) is different from false [2022-11-18 19:54:43,366 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:54:43,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [798859986] [2022-11-18 19:54:43,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [798859986] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:54:43,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [894261412] [2022-11-18 19:54:43,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:54:43,366 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-18 19:54:43,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/cvc4 [2022-11-18 19:54:43,367 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-18 19:54:43,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2022-11-18 19:54:47,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:47,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 96 conjunts are in the unsatisfiable core [2022-11-18 19:54:47,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:54:47,314 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-11-18 19:54:47,314 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2022-11-18 19:54:47,567 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 14 treesize of output 16 [2022-11-18 19:54:47,580 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 14 treesize of output 16 [2022-11-18 19:54:47,608 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 19:54:47,633 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 19:54:51,500 INFO L321 Elim1Store]: treesize reduction 77, result has 3.8 percent of original size [2022-11-18 19:54:51,500 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 100 treesize of output 108 [2022-11-18 19:54:51,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:54:51,511 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 77 [2022-11-18 19:54:51,520 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 65 [2022-11-18 19:54:51,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:54:51,539 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 47 treesize of output 23 [2022-11-18 19:54:51,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:54:51,551 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 41 treesize of output 19 [2022-11-18 19:54:51,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:54:51,563 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 25 [2022-11-18 19:54:51,588 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-18 19:54:51,588 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 32 [2022-11-18 19:54:51,987 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 19:54:51,989 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 56 [2022-11-18 19:54:51,999 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 29 treesize of output 29 [2022-11-18 19:54:52,752 INFO L321 Elim1Store]: treesize reduction 12, result has 55.6 percent of original size [2022-11-18 19:54:52,752 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 28 [2022-11-18 19:54:53,079 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 23 treesize of output 23 [2022-11-18 19:54:53,093 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 40 treesize of output 36 [2022-11-18 19:54:53,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:54:53,143 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-18 19:54:53,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:54:53,150 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 8 [2022-11-18 19:54:53,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:54:54,021 INFO L321 Elim1Store]: treesize reduction 32, result has 13.5 percent of original size [2022-11-18 19:54:54,021 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 153 treesize of output 115 [2022-11-18 19:54:54,086 INFO L321 Elim1Store]: treesize reduction 80, result has 5.9 percent of original size [2022-11-18 19:54:54,086 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 127 treesize of output 144 [2022-11-18 19:54:54,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:54:54,106 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 81 [2022-11-18 19:54:54,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:54:54,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:54:54,123 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 55 [2022-11-18 19:54:54,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:54:54,135 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 39 [2022-11-18 19:54:54,152 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2022-11-18 19:54:54,164 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 11 [2022-11-18 19:54:54,187 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 15 [2022-11-18 19:54:54,195 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-18 19:54:54,527 INFO L321 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2022-11-18 19:54:54,527 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 60 [2022-11-18 19:54:54,539 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-18 19:54:55,615 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-18 19:54:55,958 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-11-18 19:54:55,958 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 25 [2022-11-18 19:54:55,970 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:54:55,970 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:54:56,109 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2414 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2415 (Array (_ BitVec 32) (_ BitVec 32)))) (not (let ((.cse1 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2415)) (.cse2 (bvadd (_ bv4 32) |c_~#gl_list~0.offset|))) (let ((.cse0 (select (select .cse1 |c_~#gl_list~0.base|) .cse2))) (= .cse0 (select (select .cse1 .cse0) (bvadd (_ bv4 32) (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2414) |c_~#gl_list~0.base|) .cse2)))))))) is different from false [2022-11-18 19:54:59,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [894261412] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:54:59,310 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:54:59,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 27 [2022-11-18 19:54:59,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106648668] [2022-11-18 19:54:59,310 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:54:59,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-18 19:54:59,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:54:59,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-18 19:54:59,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=992, Unknown=37, NotChecked=198, Total=1332 [2022-11-18 19:54:59,312 INFO L87 Difference]: Start difference. First operand 370 states and 435 transitions. Second operand has 28 states, 28 states have (on average 2.7857142857142856) internal successors, (78), 19 states have internal predecessors, (78), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-18 19:55:08,013 WARN L233 SmtUtils]: Spent 5.07s on a formula simplification. DAG size of input: 85 DAG size of output: 74 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 19:55:24,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:55:24,688 INFO L93 Difference]: Finished difference Result 465 states and 546 transitions. [2022-11-18 19:55:24,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-18 19:55:24,689 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.7857142857142856) internal successors, (78), 19 states have internal predecessors, (78), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 47 [2022-11-18 19:55:24,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:55:24,692 INFO L225 Difference]: With dead ends: 465 [2022-11-18 19:55:24,693 INFO L226 Difference]: Without dead ends: 462 [2022-11-18 19:55:24,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 108 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 30.8s TimeCoverageRelationStatistics Valid=205, Invalid=1738, Unknown=49, NotChecked=264, Total=2256 [2022-11-18 19:55:24,695 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 624 mSDsluCounter, 841 mSDsCounter, 0 mSdLazyCounter, 2328 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 630 SdHoareTripleChecker+Valid, 905 SdHoareTripleChecker+Invalid, 3335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 2328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 915 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:55:24,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [630 Valid, 905 Invalid, 3335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 2328 Invalid, 0 Unknown, 915 Unchecked, 8.2s Time] [2022-11-18 19:55:24,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2022-11-18 19:55:24,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 376. [2022-11-18 19:55:24,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 332 states have (on average 1.1837349397590362) internal successors, (393), 346 states have internal predecessors, (393), 33 states have call successors, (33), 14 states have call predecessors, (33), 10 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-18 19:55:24,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 441 transitions. [2022-11-18 19:55:24,891 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 441 transitions. Word has length 47 [2022-11-18 19:55:24,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:55:24,892 INFO L495 AbstractCegarLoop]: Abstraction has 376 states and 441 transitions. [2022-11-18 19:55:24,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.7857142857142856) internal successors, (78), 19 states have internal predecessors, (78), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-18 19:55:24,892 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 441 transitions. [2022-11-18 19:55:24,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-18 19:55:24,893 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:55:24,894 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:55:24,925 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-11-18 19:55:25,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/cvc4 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0 [2022-11-18 19:55:25,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/cvc4 --incremental --print-success --lang smt [2022-11-18 19:55:25,317 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:55:25,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:55:25,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1270795517, now seen corresponding path program 1 times [2022-11-18 19:55:25,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:55:25,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1965936001] [2022-11-18 19:55:25,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:55:25,318 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:55:25,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:55:25,319 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 19:55:25,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-11-18 19:55:25,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:25,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-18 19:55:25,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:55:25,759 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2022-11-18 19:55:25,879 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2022-11-18 19:55:25,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:55:25,925 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:55:25,925 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:55:25,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1965936001] [2022-11-18 19:55:25,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1965936001] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:55:25,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:55:25,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-18 19:55:25,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128680906] [2022-11-18 19:55:25,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:55:25,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 19:55:25,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:55:25,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 19:55:25,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-18 19:55:25,927 INFO L87 Difference]: Start difference. First operand 376 states and 441 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:55:27,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:55:27,919 INFO L93 Difference]: Finished difference Result 378 states and 442 transitions. [2022-11-18 19:55:27,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 19:55:27,920 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 47 [2022-11-18 19:55:27,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:55:27,922 INFO L225 Difference]: With dead ends: 378 [2022-11-18 19:55:27,922 INFO L226 Difference]: Without dead ends: 375 [2022-11-18 19:55:27,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-11-18 19:55:27,923 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 109 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-18 19:55:27,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 466 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-18 19:55:27,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2022-11-18 19:55:28,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 375. [2022-11-18 19:55:28,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 332 states have (on average 1.1716867469879517) internal successors, (389), 345 states have internal predecessors, (389), 32 states have call successors, (32), 14 states have call predecessors, (32), 10 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-18 19:55:28,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 436 transitions. [2022-11-18 19:55:28,093 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 436 transitions. Word has length 47 [2022-11-18 19:55:28,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:55:28,094 INFO L495 AbstractCegarLoop]: Abstraction has 375 states and 436 transitions. [2022-11-18 19:55:28,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:55:28,094 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 436 transitions. [2022-11-18 19:55:28,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-11-18 19:55:28,095 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:55:28,095 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:55:28,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-11-18 19:55:28,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:55:28,311 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:55:28,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:55:28,311 INFO L85 PathProgramCache]: Analyzing trace with hash -476147003, now seen corresponding path program 2 times [2022-11-18 19:55:28,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:55:28,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [919873247] [2022-11-18 19:55:28,312 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:55:28,312 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:55:28,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:55:28,314 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 19:55:28,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-11-18 19:55:29,070 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:55:29,070 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:55:29,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 146 conjunts are in the unsatisfiable core [2022-11-18 19:55:29,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:55:29,244 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-11-18 19:55:29,245 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2022-11-18 19:55:29,344 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 14 treesize of output 16 [2022-11-18 19:55:29,372 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 14 treesize of output 16 [2022-11-18 19:55:29,387 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 19:55:29,404 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 19:55:30,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:55:30,076 INFO L321 Elim1Store]: treesize reduction 76, result has 1.3 percent of original size [2022-11-18 19:55:30,077 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 195 treesize of output 211 [2022-11-18 19:55:30,091 INFO L350 Elim1Store]: Elim1 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 188 treesize of output 157 [2022-11-18 19:55:30,120 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-18 19:55:30,121 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 105 treesize of output 37 [2022-11-18 19:55:30,144 INFO L350 Elim1Store]: Elim1 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 8 treesize of output 7 [2022-11-18 19:55:30,378 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-18 19:55:30,378 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 105 treesize of output 84 [2022-11-18 19:55:30,429 INFO L321 Elim1Store]: treesize reduction 26, result has 35.0 percent of original size [2022-11-18 19:55:30,430 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 42 [2022-11-18 19:55:30,441 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16 [2022-11-18 19:55:30,455 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-18 19:55:30,658 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-11-18 19:55:30,658 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2022-11-18 19:55:30,844 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 15 treesize of output 17 [2022-11-18 19:55:30,855 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 16 treesize of output 18 [2022-11-18 19:55:30,869 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-18 19:55:30,890 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2022-11-18 19:55:32,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:55:32,942 INFO L321 Elim1Store]: treesize reduction 58, result has 24.7 percent of original size [2022-11-18 19:55:32,942 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 176 treesize of output 210 [2022-11-18 19:55:32,954 INFO L350 Elim1Store]: Elim1 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 195 treesize of output 156 [2022-11-18 19:55:32,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:55:35,410 INFO L321 Elim1Store]: treesize reduction 46, result has 36.1 percent of original size [2022-11-18 19:55:35,410 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 87 treesize of output 62 [2022-11-18 19:55:35,446 INFO L350 Elim1Store]: Elim1 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 8 treesize of output 7 [2022-11-18 19:55:35,900 WARN L859 $PredicateComparison]: unable to prove that (and (= (bvadd (select |c_#valid| (_ bv3 32)) (_ bv1 1)) (_ bv0 1)) (let ((.cse2 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_gl_insert_~node~1#1.base|))) (let ((.cse4 (exists ((v_DerPreprocessor_30 (Array (_ BitVec 32) (_ BitVec 32))) (v_DerPreprocessor_31 (Array (_ BitVec 32) (_ BitVec 32)))) (and (= .cse2 (select (store (store (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_DerPreprocessor_30) |c_~#gl_list~0.base| v_DerPreprocessor_31) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_DerPreprocessor_30) |c_~#gl_list~0.base| v_DerPreprocessor_31) |c_ULTIMATE.start_gl_insert_~node~1#1.base|)) (= (select v_DerPreprocessor_31 |c_~#gl_list~0.offset|) |c_ULTIMATE.start_gl_insert_~node~1#1.base|)))) (.cse0 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_gl_insert_~node~1#1.base|))) (or (exists ((|list_add___list_add_~new#1.offset| (_ BitVec 32))) (and (= |c_~#gl_list~0.offset| (select .cse0 (bvadd (_ bv4 32) |list_add___list_add_~new#1.offset|))) (exists ((v_DerPreprocessor_31 (Array (_ BitVec 32) (_ BitVec 32)))) (and (exists ((v_arrayElimCell_487 (_ BitVec 32)) (v_DerPreprocessor_29 (Array (_ BitVec 32) (_ BitVec 32))) (v_DerPreprocessor_30 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store (store (store (store (store (store |c_#memory_$Pointer$.base| v_arrayElimCell_487 v_DerPreprocessor_29) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_DerPreprocessor_30) |c_~#gl_list~0.base| v_DerPreprocessor_31) v_arrayElimCell_487 v_DerPreprocessor_29) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_DerPreprocessor_30) |c_~#gl_list~0.base| v_DerPreprocessor_31))) (let ((.cse1 (select .cse3 v_arrayElimCell_487))) (and (= .cse1 v_DerPreprocessor_29) (= .cse2 (select .cse3 |c_ULTIMATE.start_gl_insert_~node~1#1.base|)) (= .cse1 (select |c_#memory_$Pointer$.base| v_arrayElimCell_487)) (not (= v_arrayElimCell_487 |c_~#gl_list~0.base|)) (= (select (select |c_#memory_$Pointer$.offset| v_arrayElimCell_487) (bvadd (_ bv4 32) (select .cse0 |list_add___list_add_~new#1.offset|))) |list_add___list_add_~new#1.offset|))))) (= (select v_DerPreprocessor_31 |c_~#gl_list~0.offset|) |c_ULTIMATE.start_gl_insert_~node~1#1.base|))))) (and (exists ((|list_add___list_add_~new#1.offset| (_ BitVec 32))) (and (= |list_add___list_add_~new#1.offset| (select .cse0 |list_add___list_add_~new#1.offset|)) (= |c_~#gl_list~0.offset| (select .cse0 (bvadd (_ bv4 32) |list_add___list_add_~new#1.offset|))))) .cse4) (and .cse4 (exists ((|list_add___list_add_~new#1.offset| (_ BitVec 32))) (and (= |c_~#gl_list~0.offset| (select .cse0 (bvadd (_ bv4 32) |list_add___list_add_~new#1.offset|))) (= (bvadd (_ bv4 32) (select .cse0 |list_add___list_add_~new#1.offset|)) |list_add___list_add_~new#1.offset|))))))) (= (_ bv3 32) |c_~#gl_list~0.base|) (= |c_~#gl_list~0.offset| (_ bv0 32)) (= (select (select |c_#memory_$Pointer$.base| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|) |c_ULTIMATE.start_gl_insert_~node~1#1.base|) (not (= (_ bv3 32) |c_ULTIMATE.start_gl_insert_~node~1#1.base|)) (= (_ bv4 32) (select (select |c_#memory_$Pointer$.offset| |c_~#gl_list~0.base|) (bvadd (_ bv4 32) |c_~#gl_list~0.offset|)))) is different from true [2022-11-18 19:55:36,110 INFO L321 Elim1Store]: treesize reduction 40, result has 36.5 percent of original size [2022-11-18 19:55:36,111 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 356 treesize of output 292 [2022-11-18 19:55:36,259 INFO L321 Elim1Store]: treesize reduction 22, result has 54.2 percent of original size [2022-11-18 19:55:36,260 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 299 treesize of output 288 [2022-11-18 19:55:36,298 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-18 19:55:36,340 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-18 19:55:36,424 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-18 19:55:36,507 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 19:55:36,507 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 7 [2022-11-18 19:55:36,525 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 19:55:36,525 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 7 [2022-11-18 19:55:36,701 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-18 19:55:36,701 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-11-18 19:55:36,843 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 15 treesize of output 17 [2022-11-18 19:55:36,856 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 16 treesize of output 18 [2022-11-18 19:55:36,876 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-18 19:55:36,889 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2022-11-18 19:55:37,328 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 82 [2022-11-18 19:55:37,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:55:40,094 INFO L321 Elim1Store]: treesize reduction 46, result has 36.1 percent of original size [2022-11-18 19:55:40,095 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 87 treesize of output 62 [2022-11-18 19:55:40,626 INFO L321 Elim1Store]: treesize reduction 18, result has 50.0 percent of original size [2022-11-18 19:55:40,631 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 80 treesize of output 85 [2022-11-18 19:55:40,700 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 19:55:40,700 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 7 [2022-11-18 19:55:41,221 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-18 19:55:41,329 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 5 trivial. 2 not checked. [2022-11-18 19:55:41,329 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:55:44,121 WARN L837 $PredicateComparison]: unable to prove that (forall ((|v_list_add___list_add_~next#1.offset_29| (_ BitVec 32)) (|v_list_add___list_add_~new#1.offset_29| (_ BitVec 32)) (v_ArrVal_2807 (_ BitVec 32)) (v_ArrVal_2789 (Array (_ BitVec 32) (_ BitVec 32)))) (not (= (select (select (store (let ((.cse0 (let ((.cse1 (let ((.cse2 (select (select |c_#memory_$Pointer$.base| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (store |c_#memory_$Pointer$.offset| .cse2 (store (select |c_#memory_$Pointer$.offset| .cse2) (bvadd (_ bv4 32) |v_list_add___list_add_~next#1.offset_29|) |v_list_add___list_add_~new#1.offset_29|))))) (store .cse1 |c_ULTIMATE.start_gl_insert_~node~1#1.base| (store (store (select .cse1 |c_ULTIMATE.start_gl_insert_~node~1#1.base|) |v_list_add___list_add_~new#1.offset_29| |v_list_add___list_add_~next#1.offset_29|) (bvadd (_ bv4 32) |v_list_add___list_add_~new#1.offset_29|) |c_~#gl_list~0.offset|))))) (store .cse0 |c_~#gl_list~0.base| (store (select .cse0 |c_~#gl_list~0.base|) |c_~#gl_list~0.offset| v_ArrVal_2807))) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2789) |c_~#gl_list~0.base|) (bvadd (_ bv4 32) |c_~#gl_list~0.offset|)) |c_~#gl_list~0.offset|))) is different from false [2022-11-18 19:55:44,128 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:55:44,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [919873247] [2022-11-18 19:55:44,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [919873247] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:55:44,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1657370049] [2022-11-18 19:55:44,129 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:55:44,129 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-18 19:55:44,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/cvc4 [2022-11-18 19:55:44,130 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-18 19:55:44,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a067f1be-b261-45aa-be61-06f010245558/bin/uautomizer-TMbwUNV5ro/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2022-11-18 19:55:48,996 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:55:48,997 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:55:49,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 118 conjunts are in the unsatisfiable core [2022-11-18 19:55:49,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:55:49,237 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-11-18 19:55:49,238 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2022-11-18 19:55:49,323 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 14 treesize of output 16 [2022-11-18 19:55:49,335 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 14 treesize of output 16 [2022-11-18 19:55:49,350 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 19:55:49,364 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 19:55:50,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 38 [2022-11-18 19:55:50,145 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 54 [2022-11-18 19:55:50,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:55:50,154 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 41 treesize of output 19 [2022-11-18 19:55:50,183 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-18 19:55:50,183 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 23 [2022-11-18 19:55:50,542 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 23 treesize of output 23 [2022-11-18 19:55:50,850 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-11-18 19:55:50,851 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2022-11-18 19:55:51,102 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 23 treesize of output 23 [2022-11-18 19:55:51,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:55:51,147 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-18 19:55:54,625 INFO L321 Elim1Store]: treesize reduction 117, result has 35.4 percent of original size [2022-11-18 19:55:54,626 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 92 treesize of output 229 [2022-11-18 19:55:54,704 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 treesize of output 7 [2022-11-18 19:55:54,835 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 treesize of output 7 [2022-11-18 19:55:54,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 treesize of output 7 [2022-11-18 19:55:55,606 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:55:55,647 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:55:55,649 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 86 [2022-11-18 19:55:55,694 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 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 [2022-11-18 19:55:55,796 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:55:55,888 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:55:55,889 INFO L217 Elim1Store]: Index analysis took 128 ms [2022-11-18 19:55:55,980 INFO L321 Elim1Store]: treesize reduction 25, result has 24.2 percent of original size [2022-11-18 19:55:55,983 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 93 treesize of output 94 [2022-11-18 19:55:56,169 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 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 [2022-11-18 19:55:56,187 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 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 [2022-11-18 19:55:56,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:55:57,848 INFO L321 Elim1Store]: treesize reduction 73, result has 27.7 percent of original size [2022-11-18 19:55:57,849 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 342 treesize of output 328 [2022-11-18 19:55:58,709 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 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 [2022-11-18 19:55:59,002 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:55:59,003 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 63 treesize of output 1 [2022-11-18 19:55:59,330 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:55:59,332 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:55:59,333 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 5 [2022-11-18 19:55:59,343 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 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 [2022-11-18 19:56:07,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:56:20,154 WARN L233 SmtUtils]: Spent 12.80s on a formula simplification. DAG size of input: 154 DAG size of output: 44 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-18 19:56:20,154 INFO L321 Elim1Store]: treesize reduction 476, result has 13.9 percent of original size [2022-11-18 19:56:20,155 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 7 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 10 new quantified variables, introduced 19 case distinctions, treesize of input 569 treesize of output 1078 [2022-11-18 19:56:20,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:56:21,669 INFO L217 Elim1Store]: Index analysis took 1156 ms [2022-11-18 19:57:04,963 WARN L233 SmtUtils]: Spent 43.29s on a formula simplification. DAG size of input: 188 DAG size of output: 48 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-18 19:57:04,964 INFO L321 Elim1Store]: treesize reduction 792, result has 8.8 percent of original size [2022-11-18 19:57:04,965 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 8 new quantified variables, introduced 55 case distinctions, treesize of input 3086 treesize of output 4287