./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_74-tricky_address1_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version abd6749d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_74-tricky_address1_racefree.i -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9a7db49c8892594e32a30fa9165fc3ad1a94911917cd8b63757bb8f24f04b536 --- Real Ultimate output --- This is Ultimate 0.2.3-?-abd6749-m [2023-11-23 05:12:54,761 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 05:12:54,841 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2023-11-23 05:12:54,848 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 05:12:54,848 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 05:12:54,871 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 05:12:54,871 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 05:12:54,872 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 05:12:54,873 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 05:12:54,876 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 05:12:54,876 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 05:12:54,876 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 05:12:54,877 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 05:12:54,878 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 05:12:54,878 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 05:12:54,878 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 05:12:54,878 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 05:12:54,879 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 05:12:54,879 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 05:12:54,879 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 05:12:54,879 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 05:12:54,880 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 05:12:54,880 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 05:12:54,880 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 05:12:54,880 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 05:12:54,881 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 05:12:54,881 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 05:12:54,881 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 05:12:54,881 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 05:12:54,881 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 05:12:54,882 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 05:12:54,882 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 05:12:54,883 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 05:12:54,883 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 05:12:54,883 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2023-11-23 05:12:54,883 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 05:12:54,883 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 05:12:54,883 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-23 05:12:54,884 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 05:12:54,884 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-23 05:12:54,884 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-23 05:12:54,884 INFO L153 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:/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a7db49c8892594e32a30fa9165fc3ad1a94911917cd8b63757bb8f24f04b536 [2023-11-23 05:12:55,091 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 05:12:55,125 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 05:12:55,127 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 05:12:55,128 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 05:12:55,129 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 05:12:55,130 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_74-tricky_address1_racefree.i [2023-11-23 05:12:56,181 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 05:12:56,376 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 05:12:56,377 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_74-tricky_address1_racefree.i [2023-11-23 05:12:56,390 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/06d11dff9/85b3b426c6994584a4bcdba29582075e/FLAG4d3a8dff3 [2023-11-23 05:12:56,400 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/06d11dff9/85b3b426c6994584a4bcdba29582075e [2023-11-23 05:12:56,402 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 05:12:56,403 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 05:12:56,404 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 05:12:56,404 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 05:12:56,409 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 05:12:56,410 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:12:56" (1/1) ... [2023-11-23 05:12:56,411 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66cd5ec2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:56, skipping insertion in model container [2023-11-23 05:12:56,411 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:12:56" (1/1) ... [2023-11-23 05:12:56,454 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 05:12:56,759 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_74-tricky_address1_racefree.i[41323,41336] [2023-11-23 05:12:56,788 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 05:12:56,807 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 05:12:56,829 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_74-tricky_address1_racefree.i[41323,41336] [2023-11-23 05:12:56,840 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 05:12:56,877 INFO L206 MainTranslator]: Completed translation [2023-11-23 05:12:56,878 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:56 WrapperNode [2023-11-23 05:12:56,880 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 05:12:56,881 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 05:12:56,881 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 05:12:56,882 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 05:12:56,887 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:56" (1/1) ... [2023-11-23 05:12:56,900 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:56" (1/1) ... [2023-11-23 05:12:56,919 INFO L138 Inliner]: procedures = 271, calls = 49, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 216 [2023-11-23 05:12:56,920 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 05:12:56,920 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 05:12:56,920 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 05:12:56,921 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 05:12:56,927 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:56" (1/1) ... [2023-11-23 05:12:56,927 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:56" (1/1) ... [2023-11-23 05:12:56,930 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:56" (1/1) ... [2023-11-23 05:12:56,930 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:56" (1/1) ... [2023-11-23 05:12:56,936 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:56" (1/1) ... [2023-11-23 05:12:56,939 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:56" (1/1) ... [2023-11-23 05:12:56,941 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:56" (1/1) ... [2023-11-23 05:12:56,942 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:56" (1/1) ... [2023-11-23 05:12:56,945 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 05:12:56,946 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 05:12:56,946 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 05:12:56,946 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 05:12:56,946 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:56" (1/1) ... [2023-11-23 05:12:56,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 05:12:56,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 05:12:56,986 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 05:12:56,989 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 05:12:57,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 05:12:57,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 05:12:57,021 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-23 05:12:57,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 05:12:57,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 05:12:57,021 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-23 05:12:57,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 05:12:57,022 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-23 05:12:57,022 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-23 05:12:57,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 05:12:57,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 05:12:57,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 05:12:57,023 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-23 05:12:57,127 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 05:12:57,129 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 05:12:57,306 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 05:12:57,455 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 05:12:57,455 INFO L309 CfgBuilder]: Removed 23 assume(true) statements. [2023-11-23 05:12:57,456 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:12:57 BoogieIcfgContainer [2023-11-23 05:12:57,456 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 05:12:57,458 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 05:12:57,458 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 05:12:57,461 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 05:12:57,461 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:12:56" (1/3) ... [2023-11-23 05:12:57,461 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d189433 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:12:57, skipping insertion in model container [2023-11-23 05:12:57,462 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:56" (2/3) ... [2023-11-23 05:12:57,462 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d189433 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:12:57, skipping insertion in model container [2023-11-23 05:12:57,462 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:12:57" (3/3) ... [2023-11-23 05:12:57,463 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_74-tricky_address1_racefree.i [2023-11-23 05:12:57,470 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-23 05:12:57,477 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 05:12:57,477 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-23 05:12:57,478 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-23 05:12:57,514 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-23 05:12:57,569 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 05:12:57,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-23 05:12:57,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 05:12:57,580 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-23 05:12:57,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-11-23 05:12:57,605 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-23 05:12:57,615 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t_funThread1of1ForFork0 ======== [2023-11-23 05:12:57,620 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=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@76fa9f28, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 05:12:57,621 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 05:12:57,755 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 05:12:57,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:12:57,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1957889072, now seen corresponding path program 1 times [2023-11-23 05:12:57,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:12:57,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870339632] [2023-11-23 05:12:57,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:12:57,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:12:57,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:12:58,088 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 05:12:58,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 05:12:58,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870339632] [2023-11-23 05:12:58,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870339632] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 05:12:58,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 05:12:58,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 05:12:58,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996732140] [2023-11-23 05:12:58,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 05:12:58,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 05:12:58,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 05:12:58,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 05:12:58,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 05:12:58,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:12:58,116 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 05:12:58,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 05:12:58,117 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:12:58,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:12:58,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 05:12:58,564 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 05:12:58,565 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:12:58,565 INFO L85 PathProgramCache]: Analyzing trace with hash -676058371, now seen corresponding path program 1 times [2023-11-23 05:12:58,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:12:58,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044557161] [2023-11-23 05:12:58,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:12:58,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:12:58,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:12:58,671 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 05:12:58,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 05:12:58,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044557161] [2023-11-23 05:12:58,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044557161] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 05:12:58,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1126602398] [2023-11-23 05:12:58,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:12:58,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 05:12:58,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 05:12:58,713 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 05:12:58,749 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 05:12:58,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:12:58,818 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 05:12:58,823 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 05:12:58,852 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 05:12:58,852 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 05:12:58,872 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 05:12:58,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1126602398] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 05:12:58,873 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 05:12:58,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-11-23 05:12:58,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313524448] [2023-11-23 05:12:58,874 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 05:12:58,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 05:12:58,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 05:12:58,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 05:12:58,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-23 05:12:58,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:12:58,877 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 05:12:58,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 05:12:58,877 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:12:58,877 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:12:58,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:12:58,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:12:58,980 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 05:12:59,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-23 05:12:59,177 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 05:12:59,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:12:59,178 INFO L85 PathProgramCache]: Analyzing trace with hash 184355689, now seen corresponding path program 2 times [2023-11-23 05:12:59,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:12:59,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873870956] [2023-11-23 05:12:59,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:12:59,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:12:59,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:12:59,282 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 05:12:59,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 05:12:59,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873870956] [2023-11-23 05:12:59,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873870956] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 05:12:59,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [561557610] [2023-11-23 05:12:59,286 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 05:12:59,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 05:12:59,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 05:12:59,287 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 05:12:59,305 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 05:12:59,360 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 05:12:59,361 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 05:12:59,362 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 05:12:59,363 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 05:12:59,374 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 05:12:59,374 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 05:12:59,423 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 05:12:59,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [561557610] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 05:12:59,424 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 05:12:59,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-11-23 05:12:59,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389171491] [2023-11-23 05:12:59,425 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 05:12:59,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-23 05:12:59,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 05:12:59,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-23 05:12:59,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-11-23 05:12:59,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:12:59,427 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 05:12:59,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 12 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 05:12:59,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:12:59,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:12:59,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:12:59,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:12:59,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:12:59,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 05:12:59,532 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 05:12:59,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 05:12:59,733 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 05:12:59,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:12:59,734 INFO L85 PathProgramCache]: Analyzing trace with hash 2063278825, now seen corresponding path program 3 times [2023-11-23 05:12:59,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:12:59,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23589922] [2023-11-23 05:12:59,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:12:59,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:12:59,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:13:00,132 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-23 05:13:00,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 05:13:00,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23589922] [2023-11-23 05:13:00,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23589922] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 05:13:00,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1392980984] [2023-11-23 05:13:00,134 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-23 05:13:00,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 05:13:00,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 05:13:00,135 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 05:13:00,152 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 05:13:00,231 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-23 05:13:00,232 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 05:13:00,233 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-23 05:13:00,235 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 05:13:00,262 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2023-11-23 05:13:00,338 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-23 05:13:00,339 INFO L378 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 [2023-11-23 05:13:00,356 INFO L378 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 10 [2023-11-23 05:13:00,415 INFO L378 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 10 [2023-11-23 05:13:00,446 INFO L378 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 31 treesize of output 25 [2023-11-23 05:13:00,466 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-23 05:13:00,466 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 05:13:06,548 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_140 (Array Int Int)) (|t_funThread1of1ForFork0_~p~0#1.offset| Int)) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_140) |c_t_funThread1of1ForFork0_~p~0#1.base|) |t_funThread1of1ForFork0_~p~0#1.offset|) 0)) is different from false [2023-11-23 05:13:08,593 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_140 (Array Int Int)) (|t_funThread1of1ForFork0_~p~0#1.offset| Int)) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_140) |c_~#a~0.base|) |t_funThread1of1ForFork0_~p~0#1.offset|) 0)) is different from false [2023-11-23 05:13:08,684 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 2 not checked. [2023-11-23 05:13:08,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1392980984] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 05:13:08,686 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 05:13:08,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 16 [2023-11-23 05:13:08,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656725096] [2023-11-23 05:13:08,687 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 05:13:08,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-23 05:13:08,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 05:13:08,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-23 05:13:08,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=170, Unknown=4, NotChecked=54, Total=272 [2023-11-23 05:13:08,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:13:08,689 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 05:13:08,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.823529411764706) internal successors, (48), 16 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 05:13:08,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:13:08,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:13:08,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-11-23 05:13:08,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:13:08,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:13:08,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:13:08,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 05:13:08,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 05:13:08,995 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 05:13:09,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 05:13:09,193 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 05:13:09,194 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:13:09,194 INFO L85 PathProgramCache]: Analyzing trace with hash 538921772, now seen corresponding path program 1 times [2023-11-23 05:13:09,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:13:09,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628424205] [2023-11-23 05:13:09,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:13:09,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:13:09,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:13:09,240 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-23 05:13:09,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 05:13:09,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628424205] [2023-11-23 05:13:09,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628424205] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 05:13:09,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [730684002] [2023-11-23 05:13:09,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:13:09,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 05:13:09,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 05:13:09,242 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 05:13:09,269 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-23 05:13:09,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:13:09,329 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 05:13:09,330 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 05:13:09,335 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-23 05:13:09,342 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-11-23 05:13:09,343 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 05:13:09,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [730684002] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 05:13:09,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 05:13:09,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2023-11-23 05:13:09,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016816423] [2023-11-23 05:13:09,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 05:13:09,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 05:13:09,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 05:13:09,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 05:13:09,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 05:13:09,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:13:09,345 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 05:13:09,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 05:13:09,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:13:09,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:13:09,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-11-23 05:13:09,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-23 05:13:09,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:13:09,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:13:09,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:13:09,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 05:13:09,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 05:13:09,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:13:09,455 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-23 05:13:09,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 05:13:09,653 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 05:13:09,653 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:13:09,653 INFO L85 PathProgramCache]: Analyzing trace with hash 446472496, now seen corresponding path program 1 times [2023-11-23 05:13:09,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:13:09,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704474426] [2023-11-23 05:13:09,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:13:09,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:13:09,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:13:09,713 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-23 05:13:09,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 05:13:09,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704474426] [2023-11-23 05:13:09,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704474426] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 05:13:09,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1844553042] [2023-11-23 05:13:09,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:13:09,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 05:13:09,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 05:13:09,715 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 05:13:09,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-23 05:13:09,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:13:09,807 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 05:13:09,814 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 05:13:09,827 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-23 05:13:09,828 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 05:13:09,841 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-23 05:13:09,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1844553042] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 05:13:09,843 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 05:13:09,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-11-23 05:13:09,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306876816] [2023-11-23 05:13:09,843 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 05:13:09,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 05:13:09,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 05:13:09,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 05:13:09,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-23 05:13:09,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:13:09,850 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 05:13:09,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 05:13:09,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:13:09,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:13:09,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-11-23 05:13:09,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-23 05:13:09,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:13:09,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:13:09,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:13:09,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:13:09,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 05:13:09,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 05:13:09,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:13:09,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:13:09,909 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 05:13:09,923 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-23 05:13:10,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 05:13:10,127 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1] [2023-11-23 05:13:10,128 INFO L307 ceAbstractionStarter]: Result for error location t_funThread1of1ForFork0 was SAFE (1/2) [2023-11-23 05:13:10,130 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 05:13:10,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-23 05:13:10,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 05:13:10,131 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-23 05:13:10,134 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-23 05:13:10,134 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-11-23 05:13:10,134 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=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@76fa9f28, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 05:13:10,134 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-23 05:13:10,140 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (8)] Waiting until timeout for monitored process [2023-11-23 05:13:10,211 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-23 05:13:10,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:13:10,211 INFO L85 PathProgramCache]: Analyzing trace with hash 942037046, now seen corresponding path program 1 times [2023-11-23 05:13:10,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:13:10,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740704583] [2023-11-23 05:13:10,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:13:10,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:13:10,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:13:10,228 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 05:13:10,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 05:13:10,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740704583] [2023-11-23 05:13:10,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740704583] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 05:13:10,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 05:13:10,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 05:13:10,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681571533] [2023-11-23 05:13:10,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 05:13:10,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 05:13:10,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 05:13:10,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 05:13:10,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 05:13:10,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:13:10,230 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 05:13:10,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 05:13:10,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:13:10,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:13:10,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-23 05:13:10,248 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-23 05:13:10,248 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:13:10,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1189696879, now seen corresponding path program 1 times [2023-11-23 05:13:10,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:13:10,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001092619] [2023-11-23 05:13:10,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:13:10,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:13:10,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:13:10,270 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 05:13:10,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 05:13:10,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001092619] [2023-11-23 05:13:10,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001092619] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 05:13:10,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [844689259] [2023-11-23 05:13:10,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:13:10,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 05:13:10,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 05:13:10,273 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 05:13:10,292 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-23 05:13:10,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:13:10,340 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 05:13:10,341 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 05:13:10,353 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 05:13:10,354 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 05:13:10,362 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 05:13:10,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [844689259] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 05:13:10,363 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 05:13:10,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-11-23 05:13:10,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079599986] [2023-11-23 05:13:10,363 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 05:13:10,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 05:13:10,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 05:13:10,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 05:13:10,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-23 05:13:10,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:13:10,377 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 05:13:10,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 05:13:10,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:13:10,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:13:10,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:13:10,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:13:10,409 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-23 05:13:10,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 05:13:10,610 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-23 05:13:10,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:13:10,610 INFO L85 PathProgramCache]: Analyzing trace with hash -463953667, now seen corresponding path program 2 times [2023-11-23 05:13:10,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:13:10,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999098982] [2023-11-23 05:13:10,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:13:10,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:13:10,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:13:10,652 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 05:13:10,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 05:13:10,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999098982] [2023-11-23 05:13:10,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999098982] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 05:13:10,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1375142779] [2023-11-23 05:13:10,652 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 05:13:10,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 05:13:10,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 05:13:10,654 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 05:13:10,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-23 05:13:10,724 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 05:13:10,725 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 05:13:10,725 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 05:13:10,726 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 05:13:10,734 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 05:13:10,734 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 05:13:10,765 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 05:13:10,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1375142779] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 05:13:10,765 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 05:13:10,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-11-23 05:13:10,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979167873] [2023-11-23 05:13:10,766 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 05:13:10,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-23 05:13:10,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 05:13:10,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-23 05:13:10,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-11-23 05:13:10,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:13:10,767 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 05:13:10,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 05:13:10,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:13:10,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:13:10,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:13:10,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:13:10,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:13:10,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 05:13:10,804 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-23 05:13:11,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 05:13:11,003 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-23 05:13:11,003 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:13:11,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1510897789, now seen corresponding path program 3 times [2023-11-23 05:13:11,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:13:11,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780846813] [2023-11-23 05:13:11,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:13:11,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:13:11,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 05:13:11,016 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 05:13:11,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 05:13:11,053 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 05:13:11,053 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 05:13:11,053 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-11-23 05:13:11,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-11-23 05:13:11,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-23 05:13:11,056 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1] [2023-11-23 05:13:11,056 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN (2/2) [2023-11-23 05:13:11,057 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-23 05:13:11,057 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-23 05:13:11,084 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-23 05:13:11,087 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 05:13:11,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-23 05:13:11,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 05:13:11,088 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-23 05:13:11,092 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-23 05:13:11,093 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t_funThread1of2ForFork0 ======== [2023-11-23 05:13:11,093 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=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@76fa9f28, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 05:13:11,093 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 05:13:11,107 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (11)] Waiting until timeout for monitored process [2023-11-23 05:13:11,294 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 05:13:11,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:13:11,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1096242198, now seen corresponding path program 1 times [2023-11-23 05:13:11,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:13:11,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682820693] [2023-11-23 05:13:11,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:13:11,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:13:11,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:13:11,342 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-23 05:13:11,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 05:13:11,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682820693] [2023-11-23 05:13:11,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682820693] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 05:13:11,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 05:13:11,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 05:13:11,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197881145] [2023-11-23 05:13:11,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 05:13:11,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 05:13:11,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 05:13:11,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 05:13:11,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 05:13:11,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:13:11,352 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 05:13:11,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 05:13:11,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:13:14,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:13:14,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-23 05:13:14,112 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 05:13:14,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:13:14,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1538588662, now seen corresponding path program 1 times [2023-11-23 05:13:14,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:13:14,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289071529] [2023-11-23 05:13:14,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:13:14,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:13:14,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:13:14,142 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 05:13:14,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 05:13:14,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289071529] [2023-11-23 05:13:14,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289071529] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 05:13:14,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [601664559] [2023-11-23 05:13:14,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:13:14,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 05:13:14,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 05:13:14,144 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 05:13:14,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-23 05:13:14,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:13:14,229 INFO L262 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 05:13:14,230 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 05:13:14,236 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 05:13:14,236 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 05:13:14,244 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 05:13:14,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [601664559] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 05:13:14,245 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 05:13:14,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-11-23 05:13:14,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224903519] [2023-11-23 05:13:14,245 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 05:13:14,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 05:13:14,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 05:13:14,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 05:13:14,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-23 05:13:14,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:13:14,247 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 05:13:14,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 05:13:14,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:13:14,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:13:15,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:13:15,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:13:15,212 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-23 05:13:15,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 05:13:15,413 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 05:13:15,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:13:15,413 INFO L85 PathProgramCache]: Analyzing trace with hash 273563630, now seen corresponding path program 2 times [2023-11-23 05:13:15,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:13:15,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005298982] [2023-11-23 05:13:15,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:13:15,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:13:15,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:13:15,465 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 05:13:15,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 05:13:15,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005298982] [2023-11-23 05:13:15,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005298982] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 05:13:15,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1479446127] [2023-11-23 05:13:15,466 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 05:13:15,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 05:13:15,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 05:13:15,467 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 05:13:15,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-23 05:13:15,553 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 05:13:15,554 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 05:13:15,554 INFO L262 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 05:13:15,555 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 05:13:15,564 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 05:13:15,564 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 05:13:15,597 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 05:13:15,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1479446127] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 05:13:15,598 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 05:13:15,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-11-23 05:13:15,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263212617] [2023-11-23 05:13:15,598 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 05:13:15,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-23 05:13:15,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 05:13:15,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-23 05:13:15,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-11-23 05:13:15,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:13:15,599 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 05:13:15,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 12 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 05:13:15,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:13:15,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:13:15,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:13:16,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:13:16,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:13:16,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 05:13:16,457 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-23 05:13:16,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-23 05:13:16,647 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 05:13:16,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:13:16,647 INFO L85 PathProgramCache]: Analyzing trace with hash -2116351378, now seen corresponding path program 3 times [2023-11-23 05:13:16,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:13:16,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564861427] [2023-11-23 05:13:16,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:13:16,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:13:16,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:13:16,950 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-23 05:13:16,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 05:13:16,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564861427] [2023-11-23 05:13:16,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564861427] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 05:13:16,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1877531372] [2023-11-23 05:13:16,950 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-23 05:13:16,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 05:13:16,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 05:13:16,951 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 05:13:16,952 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-23 05:13:17,060 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-23 05:13:17,061 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 05:13:17,062 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-23 05:13:17,063 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 05:13:17,067 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2023-11-23 05:13:17,114 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-23 05:13:17,115 INFO L378 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 [2023-11-23 05:13:17,131 INFO L378 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 10 [2023-11-23 05:13:17,167 INFO L378 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 10 [2023-11-23 05:13:17,205 INFO L378 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 31 treesize of output 25 [2023-11-23 05:13:17,218 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-23 05:13:17,218 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 05:13:23,257 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_539 (Array Int Int)) (|t_funThread1of2ForFork0_~p~0#1.offset| Int)) (= 0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_539) |c_t_funThread1of2ForFork0_~p~0#1.base|) |t_funThread1of2ForFork0_~p~0#1.offset|))) is different from false [2023-11-23 05:13:23,268 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_539 (Array Int Int)) (|t_funThread1of2ForFork0_~p~0#1.offset| Int)) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_539) |c_~#a~0.base|) |t_funThread1of2ForFork0_~p~0#1.offset|) 0)) is different from false [2023-11-23 05:13:23,342 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 3 not checked. [2023-11-23 05:13:23,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1877531372] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 05:13:23,342 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 05:13:23,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 16 [2023-11-23 05:13:23,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398963930] [2023-11-23 05:13:23,342 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 05:13:23,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-23 05:13:23,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 05:13:23,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-23 05:13:23,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=169, Unknown=5, NotChecked=54, Total=272 [2023-11-23 05:13:23,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:13:23,343 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 05:13:23,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 16 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 05:13:23,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:13:23,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:13:23,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-11-23 05:13:23,344 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:13:24,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:13:24,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:13:24,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 05:13:24,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 05:13:24,930 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-23 05:13:25,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-23 05:13:25,127 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 05:13:25,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:13:25,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1982754305, now seen corresponding path program 1 times [2023-11-23 05:13:25,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:13:25,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9113324] [2023-11-23 05:13:25,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:13:25,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:13:25,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:13:25,194 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-11-23 05:13:25,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 05:13:25,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9113324] [2023-11-23 05:13:25,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9113324] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 05:13:25,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 05:13:25,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 05:13:25,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693370455] [2023-11-23 05:13:25,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 05:13:25,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 05:13:25,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 05:13:25,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 05:13:25,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 05:13:25,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:13:25,196 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 05:13:25,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 05:13:25,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:13:25,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:13:25,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-11-23 05:13:25,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-23 05:13:25,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:13:25,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:13:25,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:13:25,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 05:13:25,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 05:13:25,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:13:25,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-23 05:13:25,897 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 05:13:25,897 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:13:25,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1953809843, now seen corresponding path program 1 times [2023-11-23 05:13:25,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:13:25,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579390253] [2023-11-23 05:13:25,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:13:25,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:13:25,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:13:28,413 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 05:13:28,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 05:13:28,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579390253] [2023-11-23 05:13:28,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579390253] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 05:13:28,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1989408959] [2023-11-23 05:13:28,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:13:28,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 05:13:28,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 05:13:28,415 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 05:13:28,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-23 05:13:28,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:13:28,534 INFO L262 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-23 05:13:28,543 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 05:13:28,548 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2023-11-23 05:13:28,624 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-23 05:13:28,624 INFO L378 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 [2023-11-23 05:13:28,650 INFO L378 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 10 [2023-11-23 05:13:28,694 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-23 05:13:28,760 INFO L378 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 10 [2023-11-23 05:13:28,823 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-23 05:13:28,823 INFO L378 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 19 treesize of output 11 [2023-11-23 05:13:28,880 INFO L378 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 10 [2023-11-23 05:13:28,927 INFO L378 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 22 treesize of output 17 [2023-11-23 05:13:28,978 INFO L378 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 38 treesize of output 30 [2023-11-23 05:13:29,008 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-23 05:13:29,008 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 05:13:29,972 INFO L378 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 18 treesize of output 12 [2023-11-23 05:13:29,982 WARN L854 $PredicateComparison]: unable to prove that (and (forall ((|t_funThread2of2ForFork0_~p~0#1.offset| Int) (v_ArrVal_665 (Array Int Int)) (v_ArrVal_667 Int) (|t_funThread1of2ForFork0_~p~0#1.offset| Int)) (or (= (select (select (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_665))) (store .cse0 |c_~#a~0.base| (store (select .cse0 |c_~#a~0.base|) |t_funThread2of2ForFork0_~p~0#1.offset| v_ArrVal_667))) |c_t_funThread1of2ForFork0_~p~0#1.base|) |t_funThread1of2ForFork0_~p~0#1.offset|) 0) (= |t_funThread1of2ForFork0_~p~0#1.offset| |t_funThread2of2ForFork0_~p~0#1.offset|))) (or (forall ((|t_funThread2of2ForFork0_~p~0#1.offset| Int) (v_ArrVal_665 (Array Int Int)) (v_ArrVal_667 Int) (|t_funThread1of2ForFork0_~p~0#1.offset| Int)) (= (select (select (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_665))) (store .cse1 |c_~#a~0.base| (store (select .cse1 |c_~#a~0.base|) |t_funThread2of2ForFork0_~p~0#1.offset| v_ArrVal_667))) |c_t_funThread1of2ForFork0_~p~0#1.base|) |t_funThread1of2ForFork0_~p~0#1.offset|) 0)) (= |c_~#a~0.base| |c_t_funThread1of2ForFork0_~p~0#1.base|))) is different from false [2023-11-23 05:13:31,989 WARN L854 $PredicateComparison]: unable to prove that (forall ((|t_funThread2of2ForFork0_~p~0#1.offset| Int) (v_ArrVal_665 (Array Int Int)) (v_ArrVal_667 Int) (|t_funThread1of2ForFork0_~p~0#1.offset| Int)) (or (= (select (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_665) |c_~#a~0.base|) |t_funThread2of2ForFork0_~p~0#1.offset| v_ArrVal_667) |t_funThread1of2ForFork0_~p~0#1.offset|) 0) (= |t_funThread1of2ForFork0_~p~0#1.offset| |t_funThread2of2ForFork0_~p~0#1.offset|))) is different from false [2023-11-23 05:13:32,126 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 4 not checked. [2023-11-23 05:13:32,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1989408959] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 05:13:32,127 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 05:13:32,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 10, 10] total 36 [2023-11-23 05:13:32,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710529065] [2023-11-23 05:13:32,127 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 05:13:32,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-11-23 05:13:32,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 05:13:32,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-11-23 05:13:32,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=1046, Unknown=8, NotChecked=134, Total=1332 [2023-11-23 05:13:32,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:13:32,128 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 05:13:32,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 2.4594594594594597) internal successors, (91), 36 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 05:13:32,129 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:13:32,129 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:13:32,129 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-11-23 05:13:32,129 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-23 05:13:32,129 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:13:32,129 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:13:35,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:13:35,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:13:35,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 05:13:35,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 05:13:35,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:13:35,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-11-23 05:13:35,066 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-23 05:13:35,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-23 05:13:35,256 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 05:13:35,256 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:13:35,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1104475625, now seen corresponding path program 1 times [2023-11-23 05:13:35,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:13:35,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434254010] [2023-11-23 05:13:35,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:13:35,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:13:35,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:13:35,335 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-23 05:13:35,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 05:13:35,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434254010] [2023-11-23 05:13:35,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434254010] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 05:13:35,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1690907337] [2023-11-23 05:13:35,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:13:35,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 05:13:35,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 05:13:35,337 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 05:13:35,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-23 05:13:35,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:13:35,466 INFO L262 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 05:13:35,468 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 05:13:35,486 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-23 05:13:35,487 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 05:13:35,518 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-23 05:13:35,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1690907337] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 05:13:35,519 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 05:13:35,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2023-11-23 05:13:35,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850175736] [2023-11-23 05:13:35,521 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 05:13:35,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 05:13:35,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 05:13:35,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 05:13:35,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2023-11-23 05:13:35,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:13:35,523 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 05:13:35,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 05:13:35,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:13:35,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:13:35,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-11-23 05:13:35,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-23 05:13:35,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:13:35,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2023-11-23 05:13:35,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:13:36,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:13:36,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:13:36,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 05:13:36,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 05:13:36,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:13:36,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-11-23 05:13:36,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 05:13:36,023 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-23 05:13:36,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-23 05:13:36,210 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 05:13:36,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:13:36,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1135122107, now seen corresponding path program 1 times [2023-11-23 05:13:36,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:13:36,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956724278] [2023-11-23 05:13:36,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:13:36,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:13:36,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:13:36,667 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-23 05:13:36,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 05:13:36,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956724278] [2023-11-23 05:13:36,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956724278] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 05:13:36,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [963926722] [2023-11-23 05:13:36,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:13:36,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 05:13:36,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 05:13:36,669 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 05:13:36,670 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-23 05:13:36,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:13:36,790 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-23 05:13:36,793 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 05:13:36,796 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2023-11-23 05:13:36,834 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-23 05:13:36,834 INFO L378 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 [2023-11-23 05:13:36,846 INFO L378 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 10 [2023-11-23 05:13:36,873 INFO L378 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 10 [2023-11-23 05:13:36,918 INFO L378 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 10 [2023-11-23 05:13:36,942 INFO L378 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 24 treesize of output 17 [2023-11-23 05:13:36,984 INFO L378 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 32 treesize of output 25 [2023-11-23 05:13:37,018 INFO L378 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 37 treesize of output 31 [2023-11-23 05:13:37,029 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-23 05:13:37,029 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 05:13:45,082 WARN L854 $PredicateComparison]: unable to prove that (forall ((|t_funThread1of2ForFork0_~p~0#1.offset| Int)) (= (select (select (store |c_#memory_int| |c_t_funThread2of2ForFork0_~p~0#1.base| (let ((.cse0 (select |c_#memory_int| |c_t_funThread2of2ForFork0_~p~0#1.base|))) (store .cse0 |c_t_funThread2of2ForFork0_~p~0#1.offset| (+ (- 1) (select .cse0 |c_t_funThread2of2ForFork0_~p~0#1.offset|))))) |c_t_funThread1of2ForFork0_~p~0#1.base|) |t_funThread1of2ForFork0_~p~0#1.offset|) 0)) is different from false [2023-11-23 05:13:53,126 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_875 (Array Int Int)) (|t_funThread1of2ForFork0_~p~0#1.offset| Int)) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_875) |c_t_funThread1of2ForFork0_~p~0#1.base|) |t_funThread1of2ForFork0_~p~0#1.offset|) 0)) is different from false [2023-11-23 05:13:55,145 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_875 (Array Int Int)) (|t_funThread1of2ForFork0_~p~0#1.offset| Int)) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_875) |c_~#a~0.base|) |t_funThread1of2ForFork0_~p~0#1.offset|) 0)) is different from false [2023-11-23 05:13:55,204 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 5 not checked. [2023-11-23 05:13:55,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [963926722] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 05:13:55,205 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 05:13:55,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 7] total 21 [2023-11-23 05:13:55,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878711218] [2023-11-23 05:13:55,205 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 05:13:55,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-23 05:13:55,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 05:13:55,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-23 05:13:55,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=278, Unknown=6, NotChecked=108, Total=462 [2023-11-23 05:13:55,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:13:55,206 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 05:13:55,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.181818181818182) internal successors, (114), 21 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 05:13:55,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:13:55,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:13:55,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-11-23 05:13:55,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-23 05:13:55,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:13:55,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2023-11-23 05:13:55,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-23 05:13:55,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:13:55,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:13:55,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:13:55,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 05:13:55,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 05:13:55,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:13:55,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-11-23 05:13:55,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 05:13:55,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 05:13:55,775 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-23 05:13:55,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-23 05:13:55,972 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 05:13:55,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:13:55,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1224865554, now seen corresponding path program 1 times [2023-11-23 05:13:55,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:13:55,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878352053] [2023-11-23 05:13:55,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:13:55,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:13:56,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:13:59,907 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 05:13:59,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 05:13:59,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878352053] [2023-11-23 05:13:59,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878352053] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 05:13:59,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1966471067] [2023-11-23 05:13:59,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:13:59,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 05:13:59,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 05:13:59,908 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 05:13:59,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-23 05:14:00,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:14:00,038 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-23 05:14:00,049 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 05:14:00,052 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2023-11-23 05:14:00,141 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-23 05:14:00,142 INFO L378 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 [2023-11-23 05:14:00,174 INFO L378 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 10 [2023-11-23 05:14:00,227 INFO L378 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 10 [2023-11-23 05:14:00,281 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-23 05:14:00,363 INFO L378 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 10 [2023-11-23 05:14:00,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 05:14:00,421 INFO L378 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 18 treesize of output 13 [2023-11-23 05:14:00,434 INFO L378 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 22 treesize of output 17 [2023-11-23 05:14:00,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 05:14:00,485 INFO L378 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 18 treesize of output 13 [2023-11-23 05:14:00,528 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-23 05:14:00,529 INFO L378 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 19 treesize of output 11 [2023-11-23 05:14:00,608 INFO L378 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 38 treesize of output 30 [2023-11-23 05:14:00,637 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-23 05:14:00,638 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 05:14:00,842 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_966 (Array Int Int)) (v_ArrVal_969 Int) (v_ArrVal_970 (Array Int Int)) (|t_funThread1of2ForFork0_~p~0#1.offset| Int)) (or (not (= (select (select (store |c_#pthreadsMutex| |c_~#__global_lock~0.base| v_ArrVal_970) |c_t_funThread1of2ForFork0_~p~0#1.base|) (+ |t_funThread1of2ForFork0_~p~0#1.offset| 4)) 0)) (= 0 (select (select (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_966))) (store .cse0 |c_t_funThread2of2ForFork0_~p~0#1.base| (store (select .cse0 |c_t_funThread2of2ForFork0_~p~0#1.base|) |c_t_funThread2of2ForFork0_~p~0#1.offset| v_ArrVal_969))) |c_t_funThread1of2ForFork0_~p~0#1.base|) |t_funThread1of2ForFork0_~p~0#1.offset|)))) is different from false [2023-11-23 05:14:00,873 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 05:14:00,873 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 24 [2023-11-23 05:14:00,883 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 05:14:00,883 INFO L378 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 39 treesize of output 38 [2023-11-23 05:14:00,887 INFO L378 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 22 treesize of output 18 [2023-11-23 05:14:00,910 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (forall ((v_ArrVal_966 (Array Int Int)) (|t_funThread2of2ForFork0_~p~0#1.offset| Int) (v_ArrVal_969 Int) (|t_funThread1of2ForFork0_~p~0#1.offset| Int)) (= (select (select (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_966))) (store .cse2 |c_t_funThread2of2ForFork0_~p~0#1.base| (store (select .cse2 |c_t_funThread2of2ForFork0_~p~0#1.base|) |t_funThread2of2ForFork0_~p~0#1.offset| v_ArrVal_969))) |c_t_funThread1of2ForFork0_~p~0#1.base|) |t_funThread1of2ForFork0_~p~0#1.offset|) 0)))) (and (or .cse0 (not (= |c_~#__global_lock~0.base| |c_t_funThread1of2ForFork0_~p~0#1.base|))) (or (= |c_t_funThread2of2ForFork0_~p~0#1.base| |c_t_funThread1of2ForFork0_~p~0#1.base|) .cse0) (forall ((v_ArrVal_966 (Array Int Int)) (|t_funThread2of2ForFork0_~p~0#1.offset| Int) (v_ArrVal_969 Int) (|t_funThread1of2ForFork0_~p~0#1.offset| Int)) (or (= (select (select (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_966))) (store .cse1 |c_t_funThread2of2ForFork0_~p~0#1.base| (store (select .cse1 |c_t_funThread2of2ForFork0_~p~0#1.base|) |t_funThread2of2ForFork0_~p~0#1.offset| v_ArrVal_969))) |c_t_funThread1of2ForFork0_~p~0#1.base|) |t_funThread1of2ForFork0_~p~0#1.offset|) 0) (= |t_funThread1of2ForFork0_~p~0#1.offset| |t_funThread2of2ForFork0_~p~0#1.offset|))))) is different from false [2023-11-23 05:14:00,929 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (forall ((v_ArrVal_966 (Array Int Int)) (|t_funThread2of2ForFork0_~p~0#1.offset| Int) (v_ArrVal_969 Int) (|t_funThread1of2ForFork0_~p~0#1.offset| Int)) (= (select (select (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_966))) (store .cse2 |c_~#a~0.base| (store (select .cse2 |c_~#a~0.base|) |t_funThread2of2ForFork0_~p~0#1.offset| v_ArrVal_969))) |c_t_funThread1of2ForFork0_~p~0#1.base|) |t_funThread1of2ForFork0_~p~0#1.offset|) 0)))) (and (or .cse0 (= |c_~#a~0.base| |c_t_funThread1of2ForFork0_~p~0#1.base|)) (or .cse0 (not (= |c_~#__global_lock~0.base| |c_t_funThread1of2ForFork0_~p~0#1.base|))) (forall ((v_ArrVal_966 (Array Int Int)) (|t_funThread2of2ForFork0_~p~0#1.offset| Int) (v_ArrVal_969 Int) (|t_funThread1of2ForFork0_~p~0#1.offset| Int)) (or (= (select (select (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_966))) (store .cse1 |c_~#a~0.base| (store (select .cse1 |c_~#a~0.base|) |t_funThread2of2ForFork0_~p~0#1.offset| v_ArrVal_969))) |c_t_funThread1of2ForFork0_~p~0#1.base|) |t_funThread1of2ForFork0_~p~0#1.offset|) 0) (= |t_funThread1of2ForFork0_~p~0#1.offset| |t_funThread2of2ForFork0_~p~0#1.offset|))))) is different from false [2023-11-23 05:14:00,975 WARN L854 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_966 (Array Int Int)) (|t_funThread2of2ForFork0_~p~0#1.offset| Int) (v_ArrVal_969 Int) (|t_funThread1of2ForFork0_~p~0#1.offset| Int)) (or (= (select (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_966) |c_~#a~0.base|) |t_funThread2of2ForFork0_~p~0#1.offset| v_ArrVal_969) |t_funThread1of2ForFork0_~p~0#1.offset|) 0) (= |t_funThread1of2ForFork0_~p~0#1.offset| |t_funThread2of2ForFork0_~p~0#1.offset|))) (or (not (= |c_~#a~0.base| |c_~#__global_lock~0.base|)) (forall ((v_ArrVal_966 (Array Int Int)) (|t_funThread2of2ForFork0_~p~0#1.offset| Int) (v_ArrVal_969 Int) (|t_funThread1of2ForFork0_~p~0#1.offset| Int)) (= (select (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_966) |c_~#a~0.base|) |t_funThread2of2ForFork0_~p~0#1.offset| v_ArrVal_969) |t_funThread1of2ForFork0_~p~0#1.offset|) 0)))) is different from false [2023-11-23 05:14:01,183 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 7 not checked. [2023-11-23 05:14:01,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1966471067] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 05:14:01,183 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 05:14:01,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 11, 11] total 39 [2023-11-23 05:14:01,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284247378] [2023-11-23 05:14:01,183 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 05:14:01,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-11-23 05:14:01,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 05:14:01,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-11-23 05:14:01,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=1102, Unknown=10, NotChecked=284, Total=1560 [2023-11-23 05:14:01,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:14:01,185 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 05:14:01,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 2.325) internal successors, (93), 39 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 05:14:01,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:14:01,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:14:01,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-11-23 05:14:01,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-23 05:14:01,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:14:01,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2023-11-23 05:14:01,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-23 05:14:01,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-11-23 05:14:01,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:14:04,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:14:04,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:14:04,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 05:14:04,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 05:14:04,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:14:04,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-11-23 05:14:04,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 05:14:04,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 05:14:04,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-11-23 05:14:04,022 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 05:14:04,035 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-23 05:14:04,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 05:14:04,223 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1] [2023-11-23 05:14:04,223 INFO L307 ceAbstractionStarter]: Result for error location t_funThread1of2ForFork0 was SAFE (1/3) [2023-11-23 05:14:04,225 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 05:14:04,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-23 05:14:04,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 05:14:04,226 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-23 05:14:04,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (19)] Waiting until timeout for monitored process [2023-11-23 05:14:04,235 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-23 05:14:04,235 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-11-23 05:14:04,235 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=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@76fa9f28, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 05:14:04,235 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-23 05:14:04,301 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-23 05:14:04,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:14:04,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1790519570, now seen corresponding path program 1 times [2023-11-23 05:14:04,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:14:04,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200275179] [2023-11-23 05:14:04,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:14:04,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:14:04,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:14:04,319 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-23 05:14:04,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 05:14:04,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200275179] [2023-11-23 05:14:04,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200275179] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 05:14:04,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 05:14:04,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 05:14:04,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908549620] [2023-11-23 05:14:04,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 05:14:04,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 05:14:04,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 05:14:04,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 05:14:04,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 05:14:04,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:14:04,321 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 05:14:04,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 05:14:04,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:14:04,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:14:04,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-23 05:14:04,365 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-23 05:14:04,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:14:04,365 INFO L85 PathProgramCache]: Analyzing trace with hash -581680862, now seen corresponding path program 1 times [2023-11-23 05:14:04,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:14:04,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99386307] [2023-11-23 05:14:04,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:14:04,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:14:04,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:14:04,386 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-23 05:14:04,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 05:14:04,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99386307] [2023-11-23 05:14:04,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99386307] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 05:14:04,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1536470801] [2023-11-23 05:14:04,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:14:04,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 05:14:04,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 05:14:04,389 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 05:14:04,412 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-23 05:14:04,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:14:04,494 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 05:14:04,495 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 05:14:04,500 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-23 05:14:04,500 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 05:14:04,508 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-23 05:14:04,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1536470801] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 05:14:04,509 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 05:14:04,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-11-23 05:14:04,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68178493] [2023-11-23 05:14:04,509 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 05:14:04,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 05:14:04,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 05:14:04,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 05:14:04,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-23 05:14:04,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:14:04,511 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 05:14:04,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 05:14:04,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:14:04,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:14:04,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:14:04,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:14:04,562 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-11-23 05:14:04,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,20 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 05:14:04,754 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-23 05:14:04,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:14:04,754 INFO L85 PathProgramCache]: Analyzing trace with hash -239534658, now seen corresponding path program 2 times [2023-11-23 05:14:04,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:14:04,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598688006] [2023-11-23 05:14:04,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:14:04,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:14:04,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:14:04,814 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-23 05:14:04,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 05:14:04,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598688006] [2023-11-23 05:14:04,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598688006] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 05:14:04,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [95411835] [2023-11-23 05:14:04,815 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 05:14:04,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 05:14:04,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 05:14:04,816 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 05:14:04,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-23 05:14:04,919 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 05:14:04,919 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 05:14:04,920 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 05:14:04,920 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 05:14:04,944 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-23 05:14:04,944 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 05:14:04,982 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-23 05:14:04,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [95411835] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 05:14:04,982 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 05:14:04,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-11-23 05:14:04,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282552157] [2023-11-23 05:14:04,982 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 05:14:04,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-23 05:14:04,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 05:14:04,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-23 05:14:04,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-11-23 05:14:04,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:14:04,983 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 05:14:04,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 12 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 05:14:04,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:14:04,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:14:04,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:14:05,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:14:05,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:14:05,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 05:14:05,035 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-11-23 05:14:05,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-11-23 05:14:05,220 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-23 05:14:05,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:14:05,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1312455874, now seen corresponding path program 3 times [2023-11-23 05:14:05,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:14:05,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197755829] [2023-11-23 05:14:05,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:14:05,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:14:05,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 05:14:05,243 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 05:14:05,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 05:14:05,256 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 05:14:05,256 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 05:14:05,257 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-11-23 05:14:05,257 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-11-23 05:14:05,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-23 05:14:05,259 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1] [2023-11-23 05:14:05,259 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN (2/3) [2023-11-23 05:14:05,259 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-23 05:14:05,259 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-11-23 05:14:05,284 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-23 05:14:05,288 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 05:14:05,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-23 05:14:05,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 05:14:05,290 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-23 05:14:05,294 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-23 05:14:05,294 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-11-23 05:14:05,295 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=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@76fa9f28, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 05:14:05,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (22)] Waiting until timeout for monitored process [2023-11-23 05:14:05,295 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-23 05:14:05,386 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-23 05:14:05,387 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:14:05,387 INFO L85 PathProgramCache]: Analyzing trace with hash -69044282, now seen corresponding path program 1 times [2023-11-23 05:14:05,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:14:05,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091927492] [2023-11-23 05:14:05,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:14:05,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:14:05,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:14:05,405 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-23 05:14:05,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 05:14:05,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091927492] [2023-11-23 05:14:05,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091927492] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 05:14:05,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 05:14:05,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 05:14:05,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489056066] [2023-11-23 05:14:05,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 05:14:05,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 05:14:05,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 05:14:05,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 05:14:05,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 05:14:05,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:14:05,407 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 05:14:05,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 05:14:05,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:14:05,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:14:05,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-23 05:14:05,500 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-23 05:14:05,500 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:14:05,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1539012963, now seen corresponding path program 1 times [2023-11-23 05:14:05,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:14:05,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361790275] [2023-11-23 05:14:05,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:14:05,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:14:05,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:14:05,525 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-23 05:14:05,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 05:14:05,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361790275] [2023-11-23 05:14:05,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361790275] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 05:14:05,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122299410] [2023-11-23 05:14:05,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:14:05,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 05:14:05,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 05:14:05,527 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 05:14:05,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-23 05:14:05,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:14:05,653 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 05:14:05,653 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 05:14:05,660 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-23 05:14:05,660 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 05:14:05,668 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-23 05:14:05,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1122299410] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 05:14:05,669 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 05:14:05,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-11-23 05:14:05,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627523367] [2023-11-23 05:14:05,669 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 05:14:05,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 05:14:05,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 05:14:05,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 05:14:05,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-23 05:14:05,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:14:05,669 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 05:14:05,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 05:14:05,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:14:05,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:14:05,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:14:05,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:14:05,720 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-11-23 05:14:05,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-23 05:14:05,916 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-23 05:14:05,916 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:14:05,916 INFO L85 PathProgramCache]: Analyzing trace with hash 732249554, now seen corresponding path program 2 times [2023-11-23 05:14:05,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:14:05,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248188046] [2023-11-23 05:14:05,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:14:05,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:14:05,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:14:05,976 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-23 05:14:05,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 05:14:05,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248188046] [2023-11-23 05:14:05,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248188046] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 05:14:05,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [725208539] [2023-11-23 05:14:05,977 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 05:14:05,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 05:14:05,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 05:14:05,991 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 05:14:06,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-23 05:14:06,120 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 05:14:06,120 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 05:14:06,121 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 05:14:06,121 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 05:14:06,132 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-23 05:14:06,132 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 05:14:06,183 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-23 05:14:06,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [725208539] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 05:14:06,184 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 05:14:06,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-11-23 05:14:06,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124459993] [2023-11-23 05:14:06,184 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 05:14:06,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-23 05:14:06,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 05:14:06,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-23 05:14:06,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-11-23 05:14:06,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:14:06,185 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 05:14:06,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 12 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 05:14:06,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:14:06,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:14:06,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:14:06,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:14:06,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:14:06,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 05:14:06,264 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-11-23 05:14:06,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-23 05:14:06,450 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-23 05:14:06,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:14:06,451 INFO L85 PathProgramCache]: Analyzing trace with hash -222174158, now seen corresponding path program 3 times [2023-11-23 05:14:06,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:14:06,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683075905] [2023-11-23 05:14:06,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:14:06,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:14:06,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 05:14:06,471 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 05:14:06,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 05:14:06,503 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 05:14:06,506 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 05:14:06,507 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-11-23 05:14:06,507 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-11-23 05:14:06,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-11-23 05:14:06,508 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1] [2023-11-23 05:14:06,508 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN (1/4) [2023-11-23 05:14:06,508 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-23 05:14:06,508 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-11-23 05:14:06,534 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-23 05:14:06,536 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 05:14:06,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-23 05:14:06,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 05:14:06,537 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-23 05:14:06,538 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (25)] Waiting until timeout for monitored process [2023-11-23 05:14:06,540 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-23 05:14:06,541 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t_funThread4of4ForFork0 ======== [2023-11-23 05:14:06,541 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=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@76fa9f28, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 05:14:06,541 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 05:14:06,688 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 05:14:06,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:14:06,688 INFO L85 PathProgramCache]: Analyzing trace with hash -199797332, now seen corresponding path program 1 times [2023-11-23 05:14:06,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:14:06,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223493079] [2023-11-23 05:14:06,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:14:06,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:14:06,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:14:06,712 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-23 05:14:06,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 05:14:06,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223493079] [2023-11-23 05:14:06,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223493079] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 05:14:06,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 05:14:06,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 05:14:06,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905071580] [2023-11-23 05:14:06,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 05:14:06,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 05:14:06,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 05:14:06,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 05:14:06,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 05:14:06,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:14:06,714 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 05:14:06,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 05:14:06,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:14:25,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:14:25,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-11-23 05:14:25,277 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 05:14:25,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:14:25,277 INFO L85 PathProgramCache]: Analyzing trace with hash 909898761, now seen corresponding path program 1 times [2023-11-23 05:14:25,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:14:25,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997342574] [2023-11-23 05:14:25,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:14:25,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:14:25,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:14:25,316 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-23 05:14:25,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 05:14:25,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997342574] [2023-11-23 05:14:25,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997342574] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 05:14:25,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1695824895] [2023-11-23 05:14:25,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:14:25,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 05:14:25,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 05:14:25,318 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 05:14:25,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-23 05:14:25,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:14:25,490 INFO L262 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 05:14:25,492 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 05:14:25,498 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-23 05:14:25,498 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 05:14:25,512 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-23 05:14:25,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1695824895] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 05:14:25,513 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 05:14:25,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-11-23 05:14:25,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062772278] [2023-11-23 05:14:25,513 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 05:14:25,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 05:14:25,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 05:14:25,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 05:14:25,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-23 05:14:25,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:14:25,514 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 05:14:25,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 05:14:25,515 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:14:25,515 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:14:34,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:14:34,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:14:34,306 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-11-23 05:14:34,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-23 05:14:34,495 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 05:14:34,495 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:14:34,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1347679204, now seen corresponding path program 2 times [2023-11-23 05:14:34,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:14:34,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387081340] [2023-11-23 05:14:34,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:14:34,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:14:34,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:14:34,563 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-23 05:14:34,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 05:14:34,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387081340] [2023-11-23 05:14:34,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387081340] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 05:14:34,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [199989652] [2023-11-23 05:14:34,564 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 05:14:34,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 05:14:34,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 05:14:34,565 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 05:14:34,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-23 05:14:34,760 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 05:14:34,760 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 05:14:34,762 INFO L262 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 05:14:34,763 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 05:14:34,772 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-23 05:14:34,772 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 05:14:34,814 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-23 05:14:34,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [199989652] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 05:14:34,815 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 05:14:34,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-11-23 05:14:34,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492047211] [2023-11-23 05:14:34,815 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 05:14:34,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-23 05:14:34,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 05:14:34,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-23 05:14:34,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-11-23 05:14:34,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:14:34,817 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 05:14:34,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 12 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 05:14:34,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 05:14:34,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:14:34,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.