./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_28-funptr_racefree.i --full-output --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking DFS --traceabstraction.criterion.for.conditional.commutativity.checking DEFAULT --traceabstraction.use.limited.checks.recommended.for.dfs true --traceabstraction.limit.for.limited.checks 5 -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b86fb0b7 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_28-funptr_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 5b90ecb07ae966182b79ce4444e238e18068c02297f514a326dfeeed6dbb5499 --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking DFS --traceabstraction.criterion.for.conditional.commutativity.checking DEFAULT --traceabstraction.use.limited.checks.recommended.for.dfs true --traceabstraction.limit.for.limited.checks 5 -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.conditional-comm-b86fb0b-m [2024-10-18 21:47:16,617 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-18 21:47:16,705 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-10-18 21:47:16,711 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-18 21:47:16,711 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-18 21:47:16,740 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-18 21:47:16,741 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-18 21:47:16,741 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-18 21:47:16,741 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-18 21:47:16,742 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-18 21:47:16,742 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-18 21:47:16,743 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-18 21:47:16,743 INFO L153 SettingsManager]: * Use SBE=true [2024-10-18 21:47:16,744 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-18 21:47:16,745 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-18 21:47:16,745 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-18 21:47:16,745 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-18 21:47:16,745 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-18 21:47:16,746 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-18 21:47:16,746 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-18 21:47:16,746 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-18 21:47:16,747 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-18 21:47:16,747 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-18 21:47:16,747 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-18 21:47:16,748 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-18 21:47:16,748 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-18 21:47:16,748 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-18 21:47:16,748 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-18 21:47:16,749 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-18 21:47:16,749 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-18 21:47:16,749 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-18 21:47:16,749 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-18 21:47:16,750 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-18 21:47:16,750 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-10-18 21:47:16,750 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-18 21:47:16,750 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-18 21:47:16,750 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-18 21:47:16,751 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-18 21:47:16,751 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-18 21:47:16,751 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-18 21:47:16,751 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-18 21:47:16,753 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 -> 5b90ecb07ae966182b79ce4444e238e18068c02297f514a326dfeeed6dbb5499 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional conditional commutativity checking -> DFS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Criterion for conditional commutativity checking -> DEFAULT Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use limited checks (recommended for DFS) -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Limit for limited checks -> 5 [2024-10-18 21:47:17,011 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-18 21:47:17,036 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-18 21:47:17,039 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-18 21:47:17,040 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-18 21:47:17,040 INFO L274 PluginConnector]: CDTParser initialized [2024-10-18 21:47:17,041 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_28-funptr_racefree.i [2024-10-18 21:47:18,547 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-18 21:47:18,809 INFO L384 CDTParser]: Found 1 translation units. [2024-10-18 21:47:18,810 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_28-funptr_racefree.i [2024-10-18 21:47:18,834 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/2cecd57c5/85445b141ac348bd92f02003413f8a20/FLAG04991c945 [2024-10-18 21:47:19,121 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/2cecd57c5/85445b141ac348bd92f02003413f8a20 [2024-10-18 21:47:19,124 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-18 21:47:19,125 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-18 21:47:19,126 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-18 21:47:19,127 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-18 21:47:19,132 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-18 21:47:19,133 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.10 09:47:19" (1/1) ... [2024-10-18 21:47:19,134 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@717388ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 09:47:19, skipping insertion in model container [2024-10-18 21:47:19,134 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.10 09:47:19" (1/1) ... [2024-10-18 21:47:19,183 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-18 21:47:19,663 WARN L247 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_28-funptr_racefree.i[41323,41336] [2024-10-18 21:47:19,696 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-18 21:47:19,711 INFO L200 MainTranslator]: Completed pre-run [2024-10-18 21:47:19,744 WARN L247 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_28-funptr_racefree.i[41323,41336] [2024-10-18 21:47:19,753 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-18 21:47:19,807 INFO L204 MainTranslator]: Completed translation [2024-10-18 21:47:19,808 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 09:47:19 WrapperNode [2024-10-18 21:47:19,808 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-18 21:47:19,809 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-18 21:47:19,809 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-18 21:47:19,809 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-18 21:47:19,815 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 09:47:19" (1/1) ... [2024-10-18 21:47:19,830 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 09:47:19" (1/1) ... [2024-10-18 21:47:19,862 INFO L138 Inliner]: procedures = 274, calls = 51, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 141 [2024-10-18 21:47:19,862 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-18 21:47:19,863 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-18 21:47:19,863 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-18 21:47:19,863 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-18 21:47:19,874 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 09:47:19" (1/1) ... [2024-10-18 21:47:19,875 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 09:47:19" (1/1) ... [2024-10-18 21:47:19,879 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 09:47:19" (1/1) ... [2024-10-18 21:47:19,879 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 09:47:19" (1/1) ... [2024-10-18 21:47:19,885 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 09:47:19" (1/1) ... [2024-10-18 21:47:19,889 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 09:47:19" (1/1) ... [2024-10-18 21:47:19,892 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 09:47:19" (1/1) ... [2024-10-18 21:47:19,894 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 09:47:19" (1/1) ... [2024-10-18 21:47:19,897 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-18 21:47:19,902 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-18 21:47:19,902 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-18 21:47:19,902 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-18 21:47:19,903 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 09:47:19" (1/1) ... [2024-10-18 21:47:19,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-18 21:47:19,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 21:47:19,936 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) [2024-10-18 21:47:19,938 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 [2024-10-18 21:47:20,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-18 21:47:20,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-18 21:47:20,008 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-18 21:47:20,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-18 21:47:20,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-18 21:47:20,009 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-18 21:47:20,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-18 21:47:20,009 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-18 21:47:20,009 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-18 21:47:20,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-18 21:47:20,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-18 21:47:20,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-18 21:47:20,012 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-18 21:47:20,186 INFO L238 CfgBuilder]: Building ICFG [2024-10-18 21:47:20,188 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-18 21:47:20,427 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-18 21:47:20,427 INFO L287 CfgBuilder]: Performing block encoding [2024-10-18 21:47:20,588 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-18 21:47:20,588 INFO L314 CfgBuilder]: Removed 10 assume(true) statements. [2024-10-18 21:47:20,589 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.10 09:47:20 BoogieIcfgContainer [2024-10-18 21:47:20,590 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-18 21:47:20,593 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-18 21:47:20,594 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-18 21:47:20,597 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-18 21:47:20,598 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.10 09:47:19" (1/3) ... [2024-10-18 21:47:20,599 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33272227 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.10 09:47:20, skipping insertion in model container [2024-10-18 21:47:20,599 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 09:47:19" (2/3) ... [2024-10-18 21:47:20,599 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33272227 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.10 09:47:20, skipping insertion in model container [2024-10-18 21:47:20,600 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.10 09:47:20" (3/3) ... [2024-10-18 21:47:20,601 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_28-funptr_racefree.i [2024-10-18 21:47:20,618 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-18 21:47:20,619 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-18 21:47:20,619 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-18 21:47:20,669 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-18 21:47:20,707 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-18 21:47:20,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-18 21:47:20,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 21:47:20,712 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) [2024-10-18 21:47:20,713 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 [2024-10-18 21:47:20,804 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-18 21:47:20,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:47:20,819 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-18 21:47:20,824 INFO L333 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, 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;@499ab41a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=DFS, mConComCheckerCriterion=DEFAULT, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=true, mConComCheckerCriterionLimit=5, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-10-18 21:47:20,824 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-18 21:47:21,236 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 21:47:21,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:47:21,238 INFO L85 PathProgramCache]: Analyzing trace with hash 2066528971, now seen corresponding path program 1 times [2024-10-18 21:47:21,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 21:47:21,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660214006] [2024-10-18 21:47:21,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:21,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:21,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:47:21,482 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:47:21,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 21:47:21,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660214006] [2024-10-18 21:47:21,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660214006] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 21:47:21,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 21:47:21,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-18 21:47:21,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553685483] [2024-10-18 21:47:21,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 21:47:21,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-18 21:47:21,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 21:47:21,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-18 21:47:21,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-18 21:47:21,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:47:21,522 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 21:47:21,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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) [2024-10-18 21:47:21,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:47:21,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:47:21,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-18 21:47:21,697 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 21:47:21,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:47:21,698 INFO L85 PathProgramCache]: Analyzing trace with hash 2004383337, now seen corresponding path program 1 times [2024-10-18 21:47:21,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 21:47:21,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466557554] [2024-10-18 21:47:21,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:21,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:21,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:21,759 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:47:21,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:21,811 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-18 21:47:21,812 INFO L332 BasicCegarLoop]: Counterexample is feasible [2024-10-18 21:47:21,813 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2024-10-18 21:47:21,818 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-10-18 21:47:21,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-18 21:47:21,828 INFO L414 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-18 21:47:21,831 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-18 21:47:21,831 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-18 21:47:21,856 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-18 21:47:21,862 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-18 21:47:21,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-18 21:47:21,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 21:47:21,891 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-18 21:47:21,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2024-10-18 21:47:21,941 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-18 21:47:21,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:47:21,942 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-18 21:47:21,943 INFO L333 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, 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;@499ab41a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=DFS, mConComCheckerCriterion=DEFAULT, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=true, mConComCheckerCriterionLimit=5, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-10-18 21:47:21,943 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-18 21:47:22,720 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 21:47:22,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:47:22,721 INFO L85 PathProgramCache]: Analyzing trace with hash 78408614, now seen corresponding path program 1 times [2024-10-18 21:47:22,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 21:47:22,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54301850] [2024-10-18 21:47:22,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:22,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:22,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:47:22,776 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-18 21:47:22,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 21:47:22,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54301850] [2024-10-18 21:47:22,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54301850] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 21:47:22,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 21:47:22,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-18 21:47:22,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377185112] [2024-10-18 21:47:22,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 21:47:22,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-18 21:47:22,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 21:47:22,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-18 21:47:22,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-18 21:47:22,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:47:22,779 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 21:47:22,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 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) [2024-10-18 21:47:22,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:47:23,149 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:47:23,150 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 1038 treesize of output 942 [2024-10-18 21:47:23,327 INFO L85 PathProgramCache]: Analyzing trace with hash 656214260, now seen corresponding path program 1 times [2024-10-18 21:47:23,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:23,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:23,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:23,362 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:47:23,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:23,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:47:23,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,SelfDestructingSolverStorable2 [2024-10-18 21:47:23,843 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 21:47:23,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:47:23,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1391017189, now seen corresponding path program 1 times [2024-10-18 21:47:23,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 21:47:23,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493909941] [2024-10-18 21:47:23,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:23,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:23,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:47:24,073 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:47:24,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 21:47:24,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493909941] [2024-10-18 21:47:24,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493909941] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 21:47:24,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 21:47:24,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-18 21:47:24,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139387554] [2024-10-18 21:47:24,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 21:47:24,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-18 21:47:24,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 21:47:24,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-18 21:47:24,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-18 21:47:24,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:47:24,077 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 21:47:24,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 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) [2024-10-18 21:47:24,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:47:24,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:47:24,202 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:47:24,203 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 270 treesize of output 246 [2024-10-18 21:47:24,301 INFO L85 PathProgramCache]: Analyzing trace with hash 656214307, now seen corresponding path program 1 times [2024-10-18 21:47:24,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:24,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:24,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:24,317 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:47:24,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:24,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:47:24,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-18 21:47:24,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,SelfDestructingSolverStorable5 [2024-10-18 21:47:24,525 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 21:47:24,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:47:24,526 INFO L85 PathProgramCache]: Analyzing trace with hash -17992204, now seen corresponding path program 1 times [2024-10-18 21:47:24,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 21:47:24,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494033398] [2024-10-18 21:47:24,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:24,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:24,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:47:24,798 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:47:24,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 21:47:24,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494033398] [2024-10-18 21:47:24,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494033398] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-18 21:47:24,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [210310296] [2024-10-18 21:47:24,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:24,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 21:47:24,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 21:47:24,802 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) [2024-10-18 21:47:24,803 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-18 21:47:24,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:47:24,914 INFO L255 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-18 21:47:24,917 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 21:47:25,005 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 [2024-10-18 21:47:25,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-18 21:47:25,102 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 16 treesize of output 11 [2024-10-18 21:47:25,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-18 21:47:25,132 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 16 treesize of output 11 [2024-10-18 21:47:25,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-18 21:47:25,165 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 16 treesize of output 11 [2024-10-18 21:47:25,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-18 21:47:25,184 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 16 treesize of output 11 [2024-10-18 21:47:25,205 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:47:25,206 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-18 21:47:25,304 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-18 21:47:25,305 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 22 treesize of output 23 [2024-10-18 21:47:25,308 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 131 treesize of output 119 [2024-10-18 21:47:25,346 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 1 refuted. 2 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:47:25,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [210310296] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-18 21:47:25,347 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-18 21:47:25,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2024-10-18 21:47:25,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904935081] [2024-10-18 21:47:25,348 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-18 21:47:25,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-18 21:47:25,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 21:47:25,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-18 21:47:25,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=100, Unknown=5, NotChecked=0, Total=156 [2024-10-18 21:47:25,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:47:25,350 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 21:47:25,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.615384615384615) internal successors, (73), 12 states have internal predecessors, (73), 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) [2024-10-18 21:47:25,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:47:25,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-18 21:47:25,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:47:25,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:47:25,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-18 21:47:25,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-18 21:47:25,559 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-18 21:47:25,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 21:47:25,743 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 21:47:25,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:47:25,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1970927667, now seen corresponding path program 1 times [2024-10-18 21:47:25,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 21:47:25,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379503580] [2024-10-18 21:47:25,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:25,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:25,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:25,762 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:47:25,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:25,777 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-18 21:47:25,778 INFO L332 BasicCegarLoop]: Counterexample is feasible [2024-10-18 21:47:25,778 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2024-10-18 21:47:25,778 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-10-18 21:47:25,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-18 21:47:25,781 INFO L414 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-10-18 21:47:25,781 WARN L239 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-18 21:47:25,781 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-10-18 21:47:25,800 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-18 21:47:25,803 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-18 21:47:25,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-18 21:47:25,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 21:47:25,806 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-18 21:47:25,808 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (5)] Waiting until timeout for monitored process [2024-10-18 21:47:25,853 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-18 21:47:25,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:47:25,854 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-18 21:47:25,856 INFO L333 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, 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;@499ab41a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=DFS, mConComCheckerCriterion=DEFAULT, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=true, mConComCheckerCriterionLimit=5, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-10-18 21:47:25,856 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-18 21:47:26,787 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 21:47:26,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:47:26,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1660186772, now seen corresponding path program 1 times [2024-10-18 21:47:26,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 21:47:26,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618249592] [2024-10-18 21:47:26,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:26,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:26,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:47:26,820 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-18 21:47:26,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 21:47:26,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618249592] [2024-10-18 21:47:26,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618249592] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 21:47:26,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 21:47:26,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-18 21:47:26,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342051292] [2024-10-18 21:47:26,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 21:47:26,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-18 21:47:26,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 21:47:26,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-18 21:47:26,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-18 21:47:26,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:47:26,825 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 21:47:26,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) 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) [2024-10-18 21:47:26,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:47:27,187 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:47:27,188 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 550 treesize of output 502 [2024-10-18 21:47:27,248 INFO L85 PathProgramCache]: Analyzing trace with hash 173371148, now seen corresponding path program 1 times [2024-10-18 21:47:27,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:27,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:27,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:27,262 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:47:27,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:27,965 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:47:27,966 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 1038 treesize of output 942 [2024-10-18 21:47:28,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1536006008, now seen corresponding path program 1 times [2024-10-18 21:47:28,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:28,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:28,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:47:28,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:47:28,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:28,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:28,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:47:28,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:47:28,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-18 21:47:28,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-18 21:47:28,507 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:47:28,508 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 270 treesize of output 246 [2024-10-18 21:47:28,592 INFO L85 PathProgramCache]: Analyzing trace with hash 173371220, now seen corresponding path program 1 times [2024-10-18 21:47:28,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:28,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:28,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:28,605 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:47:28,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:28,875 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 542 treesize of output 494 [2024-10-18 21:47:28,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1417073369, now seen corresponding path program 1 times [2024-10-18 21:47:28,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:28,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:28,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:47:29,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:47:29,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:29,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:29,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:47:29,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:47:29,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-18 21:47:29,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-10-18 21:47:29,399 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:47:29,399 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 550 treesize of output 502 [2024-10-18 21:47:29,436 INFO L85 PathProgramCache]: Analyzing trace with hash 173371240, now seen corresponding path program 1 times [2024-10-18 21:47:29,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:29,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:29,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:29,449 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:47:29,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:29,683 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:47:29,684 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 288 treesize of output 264 [2024-10-18 21:47:29,736 INFO L85 PathProgramCache]: Analyzing trace with hash -471100056, now seen corresponding path program 1 times [2024-10-18 21:47:29,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:29,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:29,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:29,755 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:47:29,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:30,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:47:30,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,SelfDestructingSolverStorable10,SelfDestructingSolverStorable11,SelfDestructingSolverStorable12,SelfDestructingSolverStorable9,SelfDestructingSolverStorable13,SelfDestructingSolverStorable14,SelfDestructingSolverStorable15,SelfDestructingSolverStorable16 [2024-10-18 21:47:30,526 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 21:47:30,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:47:30,526 INFO L85 PathProgramCache]: Analyzing trace with hash -829272086, now seen corresponding path program 1 times [2024-10-18 21:47:30,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 21:47:30,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173979268] [2024-10-18 21:47:30,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:30,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:30,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:30,545 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:47:30,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:30,562 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-18 21:47:30,563 INFO L332 BasicCegarLoop]: Counterexample is feasible [2024-10-18 21:47:30,563 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2024-10-18 21:47:30,563 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-10-18 21:47:30,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-18 21:47:30,565 INFO L414 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-18 21:47:30,566 WARN L239 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-18 21:47:30,566 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-10-18 21:47:30,589 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-18 21:47:30,592 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-18 21:47:30,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-18 21:47:30,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 21:47:30,595 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-18 21:47:30,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Waiting until timeout for monitored process [2024-10-18 21:47:30,642 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-18 21:47:30,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:47:30,643 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-18 21:47:30,643 INFO L333 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, 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;@499ab41a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=DFS, mConComCheckerCriterion=DEFAULT, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=true, mConComCheckerCriterionLimit=5, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-10-18 21:47:30,644 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-18 21:47:31,866 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 21:47:31,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:47:31,867 INFO L85 PathProgramCache]: Analyzing trace with hash -535071142, now seen corresponding path program 1 times [2024-10-18 21:47:31,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 21:47:31,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351286987] [2024-10-18 21:47:31,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:31,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:31,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:47:31,893 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-18 21:47:31,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 21:47:31,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351286987] [2024-10-18 21:47:31,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351286987] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 21:47:31,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 21:47:31,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-18 21:47:31,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526923209] [2024-10-18 21:47:31,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 21:47:31,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-18 21:47:31,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 21:47:31,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-18 21:47:31,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-18 21:47:31,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:47:31,896 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 21:47:31,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 21:47:31,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:47:32,275 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:47:32,275 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 550 treesize of output 502 [2024-10-18 21:47:32,320 INFO L85 PathProgramCache]: Analyzing trace with hash 856053508, now seen corresponding path program 1 times [2024-10-18 21:47:32,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:32,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:32,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:32,335 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:47:32,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:33,091 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:47:33,091 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 550 treesize of output 502 [2024-10-18 21:47:33,139 INFO L85 PathProgramCache]: Analyzing trace with hash -410710498, now seen corresponding path program 1 times [2024-10-18 21:47:33,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:33,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:33,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:47:33,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:47:33,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:33,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:33,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:47:33,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:47:33,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-18 21:47:33,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-18 21:47:33,533 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:47:33,534 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 1038 treesize of output 942 [2024-10-18 21:47:33,582 INFO L85 PathProgramCache]: Analyzing trace with hash 856053594, now seen corresponding path program 1 times [2024-10-18 21:47:33,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:33,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:33,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:33,599 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:47:33,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:33,860 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:47:33,860 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 532 treesize of output 484 [2024-10-18 21:47:33,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1793633428, now seen corresponding path program 1 times [2024-10-18 21:47:33,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:33,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:33,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:47:34,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:47:34,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:34,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:34,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:47:34,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:47:34,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-18 21:47:34,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-10-18 21:47:34,341 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:47:34,341 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 1038 treesize of output 942 [2024-10-18 21:47:34,383 INFO L85 PathProgramCache]: Analyzing trace with hash 856053614, now seen corresponding path program 1 times [2024-10-18 21:47:34,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:34,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:34,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:34,396 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:47:34,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:34,601 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 506 treesize of output 458 [2024-10-18 21:47:34,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1148904347, now seen corresponding path program 1 times [2024-10-18 21:47:34,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:34,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:34,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:34,643 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:47:34,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:35,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:47:35,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,SelfDestructingSolverStorable19,SelfDestructingSolverStorable20,SelfDestructingSolverStorable21,SelfDestructingSolverStorable22,SelfDestructingSolverStorable23,SelfDestructingSolverStorable24,SelfDestructingSolverStorable25,SelfDestructingSolverStorable26 [2024-10-18 21:47:35,751 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 21:47:35,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:47:35,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1722526631, now seen corresponding path program 1 times [2024-10-18 21:47:35,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 21:47:35,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697075460] [2024-10-18 21:47:35,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:35,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:35,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:35,770 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:47:35,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:35,797 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-18 21:47:35,798 INFO L332 BasicCegarLoop]: Counterexample is feasible [2024-10-18 21:47:35,798 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2024-10-18 21:47:35,798 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-10-18 21:47:35,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-18 21:47:35,801 INFO L414 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-18 21:47:35,802 WARN L239 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-18 21:47:35,802 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2024-10-18 21:47:35,834 INFO L143 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2024-10-18 21:47:35,840 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-18 21:47:35,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-18 21:47:35,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 21:47:35,843 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-18 21:47:35,845 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (7)] Waiting until timeout for monitored process [2024-10-18 21:47:35,890 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-18 21:47:35,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:47:35,891 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-18 21:47:35,891 INFO L333 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, 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;@499ab41a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=DFS, mConComCheckerCriterion=DEFAULT, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=true, mConComCheckerCriterionLimit=5, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-10-18 21:47:35,891 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-18 21:47:37,427 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 21:47:37,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:47:37,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1270550645, now seen corresponding path program 1 times [2024-10-18 21:47:37,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 21:47:37,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819499649] [2024-10-18 21:47:37,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:37,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:37,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:47:37,451 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-10-18 21:47:37,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 21:47:37,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819499649] [2024-10-18 21:47:37,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819499649] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 21:47:37,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 21:47:37,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-18 21:47:37,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259440343] [2024-10-18 21:47:37,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 21:47:37,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-18 21:47:37,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 21:47:37,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-18 21:47:37,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-18 21:47:37,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:47:37,454 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 21:47:37,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 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) [2024-10-18 21:47:37,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:47:37,806 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:47:37,806 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 568 treesize of output 520 [2024-10-18 21:47:37,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1292335061, now seen corresponding path program 1 times [2024-10-18 21:47:37,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:37,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:37,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:37,848 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:47:37,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:38,693 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:47:38,693 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 288 treesize of output 264 [2024-10-18 21:47:38,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1207822583, now seen corresponding path program 1 times [2024-10-18 21:47:38,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:38,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:38,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:47:38,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:47:38,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:38,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:38,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:47:38,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:47:38,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-18 21:47:38,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-18 21:47:39,002 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 506 treesize of output 458 [2024-10-18 21:47:39,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1292335161, now seen corresponding path program 1 times [2024-10-18 21:47:39,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:39,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:39,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:39,051 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:47:39,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:39,307 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:47:39,308 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 1056 treesize of output 960 [2024-10-18 21:47:41,332 INFO L85 PathProgramCache]: Analyzing trace with hash 366762934, now seen corresponding path program 1 times [2024-10-18 21:47:41,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:41,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:41,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:47:41,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:47:41,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:41,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:41,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:47:41,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:47:41,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-18 21:47:41,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-10-18 21:47:41,753 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 1030 treesize of output 934 [2024-10-18 21:47:41,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1292335181, now seen corresponding path program 1 times [2024-10-18 21:47:41,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:41,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:41,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:41,809 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:47:41,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:41,989 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 506 treesize of output 458 [2024-10-18 21:47:42,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1259317189, now seen corresponding path program 1 times [2024-10-18 21:47:42,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:42,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:42,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:42,030 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:47:42,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:43,190 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:47:43,191 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 1056 treesize of output 960 [2024-10-18 21:47:43,222 INFO L85 PathProgramCache]: Analyzing trace with hash 664975714, now seen corresponding path program 1 times [2024-10-18 21:47:43,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:43,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:43,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:43,244 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:47:43,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:44,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:47:44,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,SelfDestructingSolverStorable30,SelfDestructingSolverStorable31,SelfDestructingSolverStorable32,SelfDestructingSolverStorable33,SelfDestructingSolverStorable34,SelfDestructingSolverStorable35,SelfDestructingSolverStorable36,SelfDestructingSolverStorable37,SelfDestructingSolverStorable28 [2024-10-18 21:47:44,042 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 21:47:44,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:47:44,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1969850592, now seen corresponding path program 1 times [2024-10-18 21:47:44,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 21:47:44,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274101785] [2024-10-18 21:47:44,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:44,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:44,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:44,063 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:47:44,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:44,094 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-18 21:47:44,095 INFO L332 BasicCegarLoop]: Counterexample is feasible [2024-10-18 21:47:44,098 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2024-10-18 21:47:44,098 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-10-18 21:47:44,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-10-18 21:47:44,100 INFO L414 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-18 21:47:44,101 WARN L239 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-18 21:47:44,101 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2024-10-18 21:47:44,132 INFO L143 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2024-10-18 21:47:44,134 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-18 21:47:44,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-18 21:47:44,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 21:47:44,137 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) [2024-10-18 21:47:44,138 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 [2024-10-18 21:47:44,180 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-18 21:47:44,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:47:44,180 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-18 21:47:44,181 INFO L333 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, 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;@499ab41a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=DFS, mConComCheckerCriterion=DEFAULT, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=true, mConComCheckerCriterionLimit=5, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-10-18 21:47:44,181 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-18 21:47:46,177 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 21:47:46,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:47:46,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1262781989, now seen corresponding path program 1 times [2024-10-18 21:47:46,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 21:47:46,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472129601] [2024-10-18 21:47:46,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:46,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:46,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:47:46,206 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-18 21:47:46,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 21:47:46,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472129601] [2024-10-18 21:47:46,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472129601] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 21:47:46,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 21:47:46,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-18 21:47:46,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192645999] [2024-10-18 21:47:46,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 21:47:46,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-18 21:47:46,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 21:47:46,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-18 21:47:46,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-18 21:47:46,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:47:46,208 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 21:47:46,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 36.0) internal successors, (72), 2 states have internal predecessors, (72), 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) [2024-10-18 21:47:46,209 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:47:46,582 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 506 treesize of output 458 [2024-10-18 21:47:46,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1084692898, now seen corresponding path program 1 times [2024-10-18 21:47:46,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:46,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:46,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:46,681 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:47:46,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:47,463 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:47:47,464 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 514 treesize of output 466 [2024-10-18 21:47:47,492 INFO L85 PathProgramCache]: Analyzing trace with hash -985695764, now seen corresponding path program 1 times [2024-10-18 21:47:47,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:47,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:47,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:47:47,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:47:47,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:47,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:47,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:47:47,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:47:47,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-18 21:47:47,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-18 21:47:47,786 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 262 treesize of output 238 [2024-10-18 21:47:47,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1084692782, now seen corresponding path program 1 times [2024-10-18 21:47:47,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:47,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:47,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:47,842 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:47:47,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:48,075 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:47:48,076 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 550 treesize of output 502 [2024-10-18 21:47:48,134 INFO L85 PathProgramCache]: Analyzing trace with hash -812637486, now seen corresponding path program 1 times [2024-10-18 21:47:48,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:48,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:48,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:47:48,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:47:48,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:48,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:48,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:47:48,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:47:48,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-18 21:47:48,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-10-18 21:47:48,564 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:47:48,564 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 532 treesize of output 484 [2024-10-18 21:47:48,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1084692762, now seen corresponding path program 1 times [2024-10-18 21:47:48,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:48,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:48,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:48,620 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:47:48,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:48,783 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:47:48,784 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 514 treesize of output 466 [2024-10-18 21:47:48,840 INFO L85 PathProgramCache]: Analyzing trace with hash 89386497, now seen corresponding path program 1 times [2024-10-18 21:47:48,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:48,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:48,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:48,851 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:47:48,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:50,029 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:47:50,030 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 1056 treesize of output 960 [2024-10-18 21:47:50,071 INFO L85 PathProgramCache]: Analyzing trace with hash -413207967, now seen corresponding path program 1 times [2024-10-18 21:47:50,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:50,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:50,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:50,091 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:47:50,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:51,196 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:47:51,197 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 532 treesize of output 484 [2024-10-18 21:47:51,239 INFO L85 PathProgramCache]: Analyzing trace with hash -292514783, now seen corresponding path program 1 times [2024-10-18 21:47:51,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:51,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:51,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:51,267 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:47:51,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:52,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:47:52,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,SelfDestructingSolverStorable41,SelfDestructingSolverStorable42,SelfDestructingSolverStorable43,SelfDestructingSolverStorable44,SelfDestructingSolverStorable45,SelfDestructingSolverStorable46,SelfDestructingSolverStorable47,SelfDestructingSolverStorable48,SelfDestructingSolverStorable49,SelfDestructingSolverStorable39 [2024-10-18 21:47:52,358 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 21:47:52,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:47:52,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1299501203, now seen corresponding path program 1 times [2024-10-18 21:47:52,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 21:47:52,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173254745] [2024-10-18 21:47:52,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:52,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:52,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:52,382 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:47:52,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:52,411 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-18 21:47:52,411 INFO L332 BasicCegarLoop]: Counterexample is feasible [2024-10-18 21:47:52,411 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2024-10-18 21:47:52,412 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-10-18 21:47:52,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-10-18 21:47:52,413 INFO L414 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-18 21:47:52,414 WARN L239 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-18 21:47:52,414 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2024-10-18 21:47:52,443 INFO L143 ThreadInstanceAdder]: Constructed 7 joinOtherThreadTransitions. [2024-10-18 21:47:52,446 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-18 21:47:52,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-18 21:47:52,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 21:47:52,449 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-18 21:47:52,451 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (9)] Waiting until timeout for monitored process [2024-10-18 21:47:52,502 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-18 21:47:52,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:47:52,504 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-18 21:47:52,504 INFO L333 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, 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;@499ab41a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=DFS, mConComCheckerCriterion=DEFAULT, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=true, mConComCheckerCriterionLimit=5, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-10-18 21:47:52,504 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-18 21:47:54,820 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 21:47:54,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:47:54,821 INFO L85 PathProgramCache]: Analyzing trace with hash -804549878, now seen corresponding path program 1 times [2024-10-18 21:47:54,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 21:47:54,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473228994] [2024-10-18 21:47:54,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:54,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:54,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:47:54,850 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-10-18 21:47:54,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 21:47:54,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473228994] [2024-10-18 21:47:54,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473228994] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 21:47:54,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 21:47:54,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-18 21:47:54,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119664360] [2024-10-18 21:47:54,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 21:47:54,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-18 21:47:54,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 21:47:54,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-18 21:47:54,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-18 21:47:54,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:47:54,852 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 21:47:54,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 41.5) internal successors, (83), 2 states have internal predecessors, (83), 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) [2024-10-18 21:47:54,853 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:47:55,409 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:47:55,410 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 1056 treesize of output 960 [2024-10-18 21:47:55,455 INFO L85 PathProgramCache]: Analyzing trace with hash 281700213, now seen corresponding path program 1 times [2024-10-18 21:47:55,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:55,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:55,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:55,465 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:47:55,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:56,299 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:47:56,299 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 270 treesize of output 246 [2024-10-18 21:47:56,331 INFO L85 PathProgramCache]: Analyzing trace with hash 688285324, now seen corresponding path program 1 times [2024-10-18 21:47:56,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:56,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:56,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:47:56,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:47:56,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:56,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:56,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:47:56,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:47:56,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-18 21:47:56,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-18 21:47:56,588 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 1030 treesize of output 934 [2024-10-18 21:47:56,626 INFO L85 PathProgramCache]: Analyzing trace with hash 281700343, now seen corresponding path program 1 times [2024-10-18 21:47:56,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:56,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:56,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:56,637 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:47:56,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:56,879 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:47:56,879 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 1056 treesize of output 960 [2024-10-18 21:47:56,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1900502631, now seen corresponding path program 1 times [2024-10-18 21:47:56,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:56,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:56,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:47:57,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:47:57,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:57,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:57,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:47:57,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:47:57,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-18 21:47:57,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-10-18 21:47:57,276 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:47:57,276 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 532 treesize of output 484 [2024-10-18 21:47:57,308 INFO L85 PathProgramCache]: Analyzing trace with hash 281700363, now seen corresponding path program 1 times [2024-10-18 21:47:57,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:57,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:57,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:57,320 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:47:57,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:57,497 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:47:57,497 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 288 treesize of output 264 [2024-10-18 21:47:57,537 INFO L85 PathProgramCache]: Analyzing trace with hash 917317686, now seen corresponding path program 1 times [2024-10-18 21:47:57,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:57,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:57,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:57,550 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:47:57,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:58,742 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:47:58,742 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 270 treesize of output 246 [2024-10-18 21:47:58,771 INFO L85 PathProgramCache]: Analyzing trace with hash -74334052, now seen corresponding path program 1 times [2024-10-18 21:47:58,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:58,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:47:58,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:58,791 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:47:58,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:47:59,954 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:47:59,954 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 288 treesize of output 264 [2024-10-18 21:47:59,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1316565556, now seen corresponding path program 1 times [2024-10-18 21:47:59,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:47:59,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:48:00,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:00,014 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:48:00,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:01,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:48:01,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,SelfDestructingSolverStorable61,SelfDestructingSolverStorable51,SelfDestructingSolverStorable52,SelfDestructingSolverStorable53,SelfDestructingSolverStorable54,SelfDestructingSolverStorable55,SelfDestructingSolverStorable56,SelfDestructingSolverStorable57,SelfDestructingSolverStorable58,SelfDestructingSolverStorable59 [2024-10-18 21:48:01,668 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 21:48:01,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:48:01,668 INFO L85 PathProgramCache]: Analyzing trace with hash 524357425, now seen corresponding path program 1 times [2024-10-18 21:48:01,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 21:48:01,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293674246] [2024-10-18 21:48:01,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:48:01,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:48:01,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:01,691 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:48:01,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:01,721 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-18 21:48:01,721 INFO L332 BasicCegarLoop]: Counterexample is feasible [2024-10-18 21:48:01,722 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2024-10-18 21:48:01,722 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-10-18 21:48:01,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2024-10-18 21:48:01,724 INFO L414 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-18 21:48:01,724 WARN L239 ceAbstractionStarter]: 7 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-18 21:48:01,724 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 8 thread instances. [2024-10-18 21:48:01,759 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-10-18 21:48:01,762 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-18 21:48:01,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-18 21:48:01,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 21:48:01,764 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-18 21:48:01,766 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (10)] Waiting until timeout for monitored process [2024-10-18 21:48:01,821 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-18 21:48:01,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:48:01,821 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-18 21:48:01,822 INFO L333 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, 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;@499ab41a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=DFS, mConComCheckerCriterion=DEFAULT, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=true, mConComCheckerCriterionLimit=5, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-10-18 21:48:01,822 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-18 21:48:04,855 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 21:48:04,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:48:04,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1566336129, now seen corresponding path program 1 times [2024-10-18 21:48:04,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 21:48:04,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576982723] [2024-10-18 21:48:04,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:48:04,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:48:04,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:48:04,884 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2024-10-18 21:48:04,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 21:48:04,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576982723] [2024-10-18 21:48:04,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576982723] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 21:48:04,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 21:48:04,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-18 21:48:04,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537781723] [2024-10-18 21:48:04,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 21:48:04,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-18 21:48:04,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 21:48:04,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-18 21:48:04,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-18 21:48:04,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:48:04,887 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 21:48:04,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 47.0) internal successors, (94), 2 states have internal predecessors, (94), 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) [2024-10-18 21:48:04,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:48:05,332 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:48:05,332 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 532 treesize of output 484 [2024-10-18 21:48:05,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1771533554, now seen corresponding path program 1 times [2024-10-18 21:48:05,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:48:05,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:48:05,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:05,389 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:48:05,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:06,365 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:48:06,366 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 1038 treesize of output 942 [2024-10-18 21:48:06,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1314139928, now seen corresponding path program 1 times [2024-10-18 21:48:06,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:48:06,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:48:06,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:48:06,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:48:06,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:48:06,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:48:06,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:48:06,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:48:06,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-18 21:48:06,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-18 21:48:06,623 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 262 treesize of output 238 [2024-10-18 21:48:06,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1771533410, now seen corresponding path program 1 times [2024-10-18 21:48:06,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:48:06,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:48:06,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:06,667 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:48:06,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:06,872 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:48:06,873 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 550 treesize of output 502 [2024-10-18 21:48:06,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1269632779, now seen corresponding path program 1 times [2024-10-18 21:48:06,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:48:06,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:48:06,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:48:07,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:48:07,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:48:07,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:48:07,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:48:07,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:48:07,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-18 21:48:07,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-10-18 21:48:07,240 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:48:07,241 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 532 treesize of output 484 [2024-10-18 21:48:07,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1771533390, now seen corresponding path program 1 times [2024-10-18 21:48:07,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:48:07,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:48:07,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:07,277 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:48:07,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:07,515 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:48:07,516 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 270 treesize of output 246 [2024-10-18 21:48:07,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1410294822, now seen corresponding path program 1 times [2024-10-18 21:48:07,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:48:07,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:48:07,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:07,583 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:48:07,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:08,880 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 262 treesize of output 238 [2024-10-18 21:48:08,914 INFO L85 PathProgramCache]: Analyzing trace with hash 2066321049, now seen corresponding path program 1 times [2024-10-18 21:48:08,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:48:08,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:48:08,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:08,930 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:48:08,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:10,003 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 262 treesize of output 238 [2024-10-18 21:48:10,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1300859102, now seen corresponding path program 1 times [2024-10-18 21:48:10,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:48:10,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:48:10,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:10,055 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:48:10,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:12,092 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:48:12,093 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 514 treesize of output 466 [2024-10-18 21:48:12,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1690434660, now seen corresponding path program 1 times [2024-10-18 21:48:12,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:48:12,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:48:12,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:12,181 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:48:12,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:13,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:48:13,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,SelfDestructingSolverStorable71,SelfDestructingSolverStorable72,SelfDestructingSolverStorable73,SelfDestructingSolverStorable63,SelfDestructingSolverStorable74,SelfDestructingSolverStorable64,SelfDestructingSolverStorable65,SelfDestructingSolverStorable66,SelfDestructingSolverStorable67,SelfDestructingSolverStorable68,SelfDestructingSolverStorable69 [2024-10-18 21:48:13,279 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 21:48:13,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:48:13,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1950021665, now seen corresponding path program 1 times [2024-10-18 21:48:13,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 21:48:13,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773194187] [2024-10-18 21:48:13,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:48:13,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:48:13,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:13,307 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:48:13,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:13,407 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-18 21:48:13,407 INFO L332 BasicCegarLoop]: Counterexample is feasible [2024-10-18 21:48:13,408 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2024-10-18 21:48:13,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-10-18 21:48:13,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2024-10-18 21:48:13,409 INFO L414 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-18 21:48:13,412 WARN L239 ceAbstractionStarter]: 8 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-18 21:48:13,412 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 9 thread instances. [2024-10-18 21:48:13,457 INFO L143 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2024-10-18 21:48:13,459 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-18 21:48:13,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-18 21:48:13,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 21:48:13,462 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) [2024-10-18 21:48:13,463 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 [2024-10-18 21:48:13,518 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-18 21:48:13,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:48:13,518 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-18 21:48:13,519 INFO L333 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, 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;@499ab41a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=DFS, mConComCheckerCriterion=DEFAULT, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=true, mConComCheckerCriterionLimit=5, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-10-18 21:48:13,519 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-18 21:48:17,005 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 21:48:17,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:48:17,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1425010277, now seen corresponding path program 1 times [2024-10-18 21:48:17,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 21:48:17,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399300681] [2024-10-18 21:48:17,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:48:17,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:48:17,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:48:17,032 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-10-18 21:48:17,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 21:48:17,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399300681] [2024-10-18 21:48:17,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399300681] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 21:48:17,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 21:48:17,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-18 21:48:17,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395327833] [2024-10-18 21:48:17,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 21:48:17,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-18 21:48:17,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 21:48:17,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-18 21:48:17,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-18 21:48:17,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:48:17,034 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 21:48:17,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 52.5) internal successors, (105), 2 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 21:48:17,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:48:17,504 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:48:17,505 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 1038 treesize of output 942 [2024-10-18 21:48:17,540 INFO L85 PathProgramCache]: Analyzing trace with hash 134568120, now seen corresponding path program 1 times [2024-10-18 21:48:17,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:48:17,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:48:17,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:17,549 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:48:17,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:18,518 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 542 treesize of output 494 [2024-10-18 21:48:18,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1760420122, now seen corresponding path program 1 times [2024-10-18 21:48:18,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:48:18,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:48:18,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:48:18,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:48:18,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:48:18,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:48:18,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:48:18,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:48:18,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-18 21:48:18,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-18 21:48:18,771 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:48:18,772 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 1038 treesize of output 942 [2024-10-18 21:48:18,830 INFO L85 PathProgramCache]: Analyzing trace with hash 134568274, now seen corresponding path program 1 times [2024-10-18 21:48:18,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:48:18,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:48:18,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:18,839 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:48:18,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:19,114 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:48:19,115 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 532 treesize of output 484 [2024-10-18 21:48:19,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1497097780, now seen corresponding path program 1 times [2024-10-18 21:48:19,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:48:19,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:48:19,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:48:19,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:48:19,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:48:19,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:48:19,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:48:19,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:48:19,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-18 21:48:19,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-10-18 21:48:19,515 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:48:19,515 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 270 treesize of output 246 [2024-10-18 21:48:19,556 INFO L85 PathProgramCache]: Analyzing trace with hash 134568294, now seen corresponding path program 1 times [2024-10-18 21:48:19,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:48:19,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:48:19,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:19,568 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:48:19,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:19,735 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 506 treesize of output 458 [2024-10-18 21:48:19,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1492223611, now seen corresponding path program 1 times [2024-10-18 21:48:19,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:48:19,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:48:19,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:19,777 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:48:19,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:20,994 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:48:20,995 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 550 treesize of output 502 [2024-10-18 21:48:21,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1633897099, now seen corresponding path program 1 times [2024-10-18 21:48:21,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:48:21,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:48:21,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:21,043 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:48:21,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:22,177 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 542 treesize of output 494 [2024-10-18 21:48:22,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1103343781, now seen corresponding path program 1 times [2024-10-18 21:48:22,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:48:22,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:48:22,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:22,225 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:48:22,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:24,205 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 506 treesize of output 458 [2024-10-18 21:48:24,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1889044557, now seen corresponding path program 1 times [2024-10-18 21:48:24,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:48:24,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:48:24,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:24,251 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:48:24,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:25,717 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:48:25,718 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 270 treesize of output 246 [2024-10-18 21:48:25,743 INFO L85 PathProgramCache]: Analyzing trace with hash 914623347, now seen corresponding path program 1 times [2024-10-18 21:48:25,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:48:25,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:48:25,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:25,767 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:48:25,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:27,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:48:27,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,SelfDestructingSolverStorable81,SelfDestructingSolverStorable82,SelfDestructingSolverStorable83,SelfDestructingSolverStorable84,SelfDestructingSolverStorable85,SelfDestructingSolverStorable86,SelfDestructingSolverStorable76,SelfDestructingSolverStorable87,SelfDestructingSolverStorable77,SelfDestructingSolverStorable88,SelfDestructingSolverStorable78,SelfDestructingSolverStorable79 [2024-10-18 21:48:27,065 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 21:48:27,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:48:27,065 INFO L85 PathProgramCache]: Analyzing trace with hash 726458479, now seen corresponding path program 1 times [2024-10-18 21:48:27,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 21:48:27,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304264839] [2024-10-18 21:48:27,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:48:27,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:48:27,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:27,096 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:48:27,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:27,130 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-18 21:48:27,131 INFO L332 BasicCegarLoop]: Counterexample is feasible [2024-10-18 21:48:27,131 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2024-10-18 21:48:27,131 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-10-18 21:48:27,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2024-10-18 21:48:27,133 INFO L414 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-18 21:48:27,133 WARN L239 ceAbstractionStarter]: 9 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-18 21:48:27,134 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 10 thread instances. [2024-10-18 21:48:27,171 INFO L143 ThreadInstanceAdder]: Constructed 10 joinOtherThreadTransitions. [2024-10-18 21:48:27,174 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-18 21:48:27,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-18 21:48:27,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 21:48:27,177 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-18 21:48:27,178 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (12)] Waiting until timeout for monitored process [2024-10-18 21:48:27,237 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-18 21:48:27,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:48:27,237 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-18 21:48:27,238 INFO L333 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, 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;@499ab41a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=DFS, mConComCheckerCriterion=DEFAULT, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=true, mConComCheckerCriterionLimit=5, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-10-18 21:48:27,238 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-18 21:48:31,470 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 21:48:31,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:48:31,471 INFO L85 PathProgramCache]: Analyzing trace with hash 142780404, now seen corresponding path program 1 times [2024-10-18 21:48:31,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 21:48:31,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623718843] [2024-10-18 21:48:31,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:48:31,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:48:31,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:48:31,500 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2024-10-18 21:48:31,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 21:48:31,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623718843] [2024-10-18 21:48:31,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623718843] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 21:48:31,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 21:48:31,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-18 21:48:31,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162924479] [2024-10-18 21:48:31,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 21:48:31,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-18 21:48:31,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 21:48:31,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-18 21:48:31,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-18 21:48:31,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:48:31,502 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 21:48:31,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 58.0) internal successors, (116), 2 states have internal predecessors, (116), 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) [2024-10-18 21:48:31,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:48:32,021 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:48:32,021 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 550 treesize of output 502 [2024-10-18 21:48:32,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1963835401, now seen corresponding path program 1 times [2024-10-18 21:48:32,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:48:32,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:48:32,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:32,070 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:48:32,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:33,071 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:48:33,071 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 270 treesize of output 246 [2024-10-18 21:48:33,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1225144984, now seen corresponding path program 1 times [2024-10-18 21:48:33,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:48:33,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:48:33,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:48:33,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:48:33,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:48:33,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:48:33,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:48:33,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:48:33,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-18 21:48:33,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-18 21:48:33,457 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:48:33,457 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 514 treesize of output 466 [2024-10-18 21:48:33,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1963835571, now seen corresponding path program 1 times [2024-10-18 21:48:33,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:48:33,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:48:33,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:33,499 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:48:33,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:33,712 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:48:33,712 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 532 treesize of output 484 [2024-10-18 21:48:33,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1389077664, now seen corresponding path program 1 times [2024-10-18 21:48:33,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:48:33,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:48:33,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:48:33,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:48:33,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:48:33,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:48:33,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:48:34,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:48:34,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-18 21:48:34,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-10-18 21:48:34,095 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:48:34,095 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 1038 treesize of output 942 [2024-10-18 21:48:34,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1963835591, now seen corresponding path program 1 times [2024-10-18 21:48:34,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:48:34,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:48:34,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:34,158 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:48:34,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:34,327 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:48:34,327 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 568 treesize of output 520 [2024-10-18 21:48:34,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1118530063, now seen corresponding path program 1 times [2024-10-18 21:48:34,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:48:34,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:48:34,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:34,372 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:48:34,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:35,519 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:48:35,520 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 550 treesize of output 502 [2024-10-18 21:48:35,543 INFO L85 PathProgramCache]: Analyzing trace with hash 446966996, now seen corresponding path program 1 times [2024-10-18 21:48:35,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:48:35,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:48:35,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:35,558 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:48:35,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:36,708 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:48:36,708 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 270 treesize of output 246 [2024-10-18 21:48:36,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1328209359, now seen corresponding path program 1 times [2024-10-18 21:48:36,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:48:36,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:48:36,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:36,769 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:48:36,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:38,901 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:48:38,901 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 270 treesize of output 246 [2024-10-18 21:48:38,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1906537639, now seen corresponding path program 1 times [2024-10-18 21:48:38,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:48:38,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:48:38,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:38,966 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:48:38,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:40,625 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:48:40,625 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 270 treesize of output 246 [2024-10-18 21:48:40,666 INFO L85 PathProgramCache]: Analyzing trace with hash -2111333779, now seen corresponding path program 1 times [2024-10-18 21:48:40,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:48:40,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:48:40,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:40,693 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:48:40,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:43,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:48:43,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,SelfDestructingSolverStorable91,SelfDestructingSolverStorable92,SelfDestructingSolverStorable93,SelfDestructingSolverStorable94,SelfDestructingSolverStorable95,SelfDestructingSolverStorable96,SelfDestructingSolverStorable97,SelfDestructingSolverStorable98,SelfDestructingSolverStorable99,SelfDestructingSolverStorable100,SelfDestructingSolverStorable101,SelfDestructingSolverStorable102 [2024-10-18 21:48:43,058 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 21:48:43,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:48:43,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1162580732, now seen corresponding path program 1 times [2024-10-18 21:48:43,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 21:48:43,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880821892] [2024-10-18 21:48:43,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:48:43,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:48:43,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:43,087 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:48:43,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:43,125 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-18 21:48:43,125 INFO L332 BasicCegarLoop]: Counterexample is feasible [2024-10-18 21:48:43,125 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2024-10-18 21:48:43,125 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-10-18 21:48:43,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2024-10-18 21:48:43,127 INFO L414 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-18 21:48:43,127 WARN L239 ceAbstractionStarter]: 10 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-18 21:48:43,127 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 11 thread instances. [2024-10-18 21:48:43,167 INFO L143 ThreadInstanceAdder]: Constructed 11 joinOtherThreadTransitions. [2024-10-18 21:48:43,170 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-18 21:48:43,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-18 21:48:43,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 21:48:43,174 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-18 21:48:43,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (13)] Waiting until timeout for monitored process [2024-10-18 21:48:43,225 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-18 21:48:43,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:48:43,226 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-18 21:48:43,226 INFO L333 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, 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;@499ab41a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=DFS, mConComCheckerCriterion=DEFAULT, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=true, mConComCheckerCriterionLimit=5, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-10-18 21:48:43,226 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-18 21:48:48,300 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 21:48:48,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:48:48,301 INFO L85 PathProgramCache]: Analyzing trace with hash 604781208, now seen corresponding path program 1 times [2024-10-18 21:48:48,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 21:48:48,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038152997] [2024-10-18 21:48:48,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:48:48,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:48:48,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:48:48,333 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2024-10-18 21:48:48,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 21:48:48,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038152997] [2024-10-18 21:48:48,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038152997] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 21:48:48,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 21:48:48,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-18 21:48:48,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980875072] [2024-10-18 21:48:48,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 21:48:48,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-18 21:48:48,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 21:48:48,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-18 21:48:48,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-18 21:48:48,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:48:48,335 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 21:48:48,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 63.5) internal successors, (127), 2 states have internal predecessors, (127), 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) [2024-10-18 21:48:48,335 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:48:48,872 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:48:48,873 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 1056 treesize of output 960 [2024-10-18 21:48:48,914 INFO L85 PathProgramCache]: Analyzing trace with hash 2082170693, now seen corresponding path program 1 times [2024-10-18 21:48:48,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:48:48,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:48:48,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:48,923 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:48:48,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:50,074 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:48:50,074 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 270 treesize of output 246 [2024-10-18 21:48:50,106 INFO L85 PathProgramCache]: Analyzing trace with hash 29538272, now seen corresponding path program 1 times [2024-10-18 21:48:50,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:48:50,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:48:50,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:48:50,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:48:50,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:48:50,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:48:50,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:48:50,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:48:50,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-18 21:48:50,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-18 21:48:50,303 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 506 treesize of output 458 [2024-10-18 21:48:50,335 INFO L85 PathProgramCache]: Analyzing trace with hash 2082170879, now seen corresponding path program 1 times [2024-10-18 21:48:50,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:48:50,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:48:50,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:50,347 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:48:50,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:50,578 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:48:50,578 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 514 treesize of output 466 [2024-10-18 21:48:50,620 INFO L85 PathProgramCache]: Analyzing trace with hash -370589726, now seen corresponding path program 1 times [2024-10-18 21:48:50,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:48:50,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:48:50,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:48:50,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:48:50,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:48:50,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:48:50,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:48:50,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:48:50,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-18 21:48:50,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-10-18 21:48:51,060 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 542 treesize of output 494 [2024-10-18 21:48:51,124 INFO L85 PathProgramCache]: Analyzing trace with hash 2082170899, now seen corresponding path program 1 times [2024-10-18 21:48:51,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:48:51,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:48:51,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:51,137 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:48:51,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:51,309 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:48:51,309 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 550 treesize of output 502 [2024-10-18 21:48:51,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1119543663, now seen corresponding path program 1 times [2024-10-18 21:48:51,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:48:51,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:48:51,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:51,365 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:48:51,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:52,600 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:48:52,600 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 1038 treesize of output 942 [2024-10-18 21:48:52,641 INFO L85 PathProgramCache]: Analyzing trace with hash 819051403, now seen corresponding path program 1 times [2024-10-18 21:48:52,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:48:52,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:48:52,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:52,656 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:48:52,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:54,008 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:48:54,009 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 568 treesize of output 520 [2024-10-18 21:48:54,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1399983328, now seen corresponding path program 1 times [2024-10-18 21:48:54,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:48:54,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:48:54,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:54,051 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:48:54,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:56,188 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:48:56,189 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 1038 treesize of output 942 [2024-10-18 21:48:56,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1871907783, now seen corresponding path program 1 times [2024-10-18 21:48:56,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:48:56,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:48:56,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:56,240 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:48:56,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:57,759 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:48:57,759 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 1056 treesize of output 960 [2024-10-18 21:48:59,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1416062877, now seen corresponding path program 1 times [2024-10-18 21:48:59,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:48:59,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:48:59,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:48:59,812 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:48:59,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:49:02,461 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 262 treesize of output 238 [2024-10-18 21:49:02,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1640624487, now seen corresponding path program 1 times [2024-10-18 21:49:02,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:49:02,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:49:02,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:49:02,539 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:49:02,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:49:04,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:49:04,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110,SelfDestructingSolverStorable108,SelfDestructingSolverStorable109,SelfDestructingSolverStorable104,SelfDestructingSolverStorable115,SelfDestructingSolverStorable105,SelfDestructingSolverStorable116,SelfDestructingSolverStorable106,SelfDestructingSolverStorable117,SelfDestructingSolverStorable107,SelfDestructingSolverStorable111,SelfDestructingSolverStorable112,SelfDestructingSolverStorable113,SelfDestructingSolverStorable114 [2024-10-18 21:49:04,149 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 21:49:04,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:49:04,149 INFO L85 PathProgramCache]: Analyzing trace with hash -774194321, now seen corresponding path program 1 times [2024-10-18 21:49:04,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 21:49:04,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256619371] [2024-10-18 21:49:04,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:49:04,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:49:04,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:49:04,178 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:49:04,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:49:04,217 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-18 21:49:04,217 INFO L332 BasicCegarLoop]: Counterexample is feasible [2024-10-18 21:49:04,217 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2024-10-18 21:49:04,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-10-18 21:49:04,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2024-10-18 21:49:04,219 INFO L414 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-18 21:49:04,219 WARN L239 ceAbstractionStarter]: 11 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-18 21:49:04,219 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 12 thread instances. [2024-10-18 21:49:04,261 INFO L143 ThreadInstanceAdder]: Constructed 12 joinOtherThreadTransitions. [2024-10-18 21:49:04,264 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-18 21:49:04,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-18 21:49:04,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 21:49:04,266 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-18 21:49:04,267 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (14)] Waiting until timeout for monitored process [2024-10-18 21:49:04,319 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-18 21:49:04,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:49:04,319 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-18 21:49:04,320 INFO L333 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, 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;@499ab41a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=DFS, mConComCheckerCriterion=DEFAULT, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=true, mConComCheckerCriterionLimit=5, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-10-18 21:49:04,320 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-18 21:49:10,061 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 21:49:10,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:49:10,062 INFO L85 PathProgramCache]: Analyzing trace with hash -466502993, now seen corresponding path program 1 times [2024-10-18 21:49:10,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 21:49:10,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984835458] [2024-10-18 21:49:10,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:49:10,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:49:10,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:49:10,094 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2024-10-18 21:49:10,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 21:49:10,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984835458] [2024-10-18 21:49:10,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984835458] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 21:49:10,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 21:49:10,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-18 21:49:10,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205438213] [2024-10-18 21:49:10,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 21:49:10,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-18 21:49:10,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 21:49:10,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-18 21:49:10,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-18 21:49:10,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:49:10,096 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 21:49:10,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 69.0) internal successors, (138), 2 states have internal predecessors, (138), 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) [2024-10-18 21:49:10,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:49:10,687 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:49:10,687 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 550 treesize of output 502 [2024-10-18 21:49:10,726 INFO L85 PathProgramCache]: Analyzing trace with hash 936980037, now seen corresponding path program 1 times [2024-10-18 21:49:10,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:49:10,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:49:10,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:49:10,735 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:49:10,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:49:11,875 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:49:11,875 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 1038 treesize of output 942 [2024-10-18 21:49:11,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1740846454, now seen corresponding path program 1 times [2024-10-18 21:49:11,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:49:11,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:49:11,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:49:11,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:49:11,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:49:11,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:49:11,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:49:12,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:49:12,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-18 21:49:12,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-18 21:49:12,105 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:49:12,106 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 514 treesize of output 466 [2024-10-18 21:49:12,132 INFO L85 PathProgramCache]: Analyzing trace with hash 936980235, now seen corresponding path program 1 times [2024-10-18 21:49:12,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:49:12,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:49:12,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:49:12,142 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:49:12,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:49:12,323 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:49:12,324 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 1056 treesize of output 960 [2024-10-18 21:49:12,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1433531192, now seen corresponding path program 1 times [2024-10-18 21:49:12,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:49:12,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:49:12,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:49:12,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:49:12,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:49:12,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:49:12,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:49:12,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:49:12,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-18 21:49:12,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-10-18 21:49:12,591 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:49:12,592 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 550 treesize of output 502 [2024-10-18 21:49:12,642 INFO L85 PathProgramCache]: Analyzing trace with hash 936980255, now seen corresponding path program 1 times [2024-10-18 21:49:12,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:49:12,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:49:12,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:49:12,651 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:49:12,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:49:12,948 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 1030 treesize of output 934 [2024-10-18 21:49:12,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1725708135, now seen corresponding path program 1 times [2024-10-18 21:49:12,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:49:12,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:49:13,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:49:13,014 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:49:13,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:49:14,459 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:49:14,460 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 514 treesize of output 466 [2024-10-18 21:49:14,501 INFO L85 PathProgramCache]: Analyzing trace with hash 742402298, now seen corresponding path program 1 times [2024-10-18 21:49:14,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:49:14,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:49:14,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:49:14,522 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:49:14,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:49:15,840 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:49:15,840 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 550 treesize of output 502 [2024-10-18 21:49:15,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1379226848, now seen corresponding path program 1 times [2024-10-18 21:49:15,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:49:15,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:49:15,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:49:15,902 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:49:15,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:49:17,954 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:49:17,954 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 550 treesize of output 502 [2024-10-18 21:49:19,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1464096882, now seen corresponding path program 1 times [2024-10-18 21:49:19,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:49:19,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:49:19,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:49:19,999 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:49:20,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:49:21,711 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:49:21,712 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 550 treesize of output 502 [2024-10-18 21:49:21,741 INFO L85 PathProgramCache]: Analyzing trace with hash -977353792, now seen corresponding path program 1 times [2024-10-18 21:49:21,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:49:21,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:49:21,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:49:21,765 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:49:21,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:49:24,390 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:49:24,391 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 288 treesize of output 264 [2024-10-18 21:49:24,430 INFO L85 PathProgramCache]: Analyzing trace with hash 760912719, now seen corresponding path program 1 times [2024-10-18 21:49:24,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:49:24,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:49:24,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:49:24,468 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:49:24,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:49:26,376 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:49:26,376 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 288 treesize of output 264 [2024-10-18 21:49:28,402 INFO L85 PathProgramCache]: Analyzing trace with hash -683742941, now seen corresponding path program 1 times [2024-10-18 21:49:28,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:49:28,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:49:28,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:49:28,589 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:49:28,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:49:30,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:49:30,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130,SelfDestructingSolverStorable120,SelfDestructingSolverStorable131,SelfDestructingSolverStorable121,SelfDestructingSolverStorable132,SelfDestructingSolverStorable119,SelfDestructingSolverStorable126,SelfDestructingSolverStorable127,SelfDestructingSolverStorable128,SelfDestructingSolverStorable129,SelfDestructingSolverStorable122,SelfDestructingSolverStorable133,SelfDestructingSolverStorable123,SelfDestructingSolverStorable124,SelfDestructingSolverStorable125 [2024-10-18 21:49:30,083 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 21:49:30,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:49:30,083 INFO L85 PathProgramCache]: Analyzing trace with hash 62481094, now seen corresponding path program 1 times [2024-10-18 21:49:30,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 21:49:30,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60109382] [2024-10-18 21:49:30,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:49:30,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:49:30,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:49:30,119 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:49:30,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:49:30,161 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-18 21:49:30,161 INFO L332 BasicCegarLoop]: Counterexample is feasible [2024-10-18 21:49:30,162 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2024-10-18 21:49:30,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-10-18 21:49:30,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2024-10-18 21:49:30,163 INFO L414 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-18 21:49:30,163 WARN L239 ceAbstractionStarter]: 12 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-18 21:49:30,163 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 13 thread instances. [2024-10-18 21:49:30,218 INFO L143 ThreadInstanceAdder]: Constructed 13 joinOtherThreadTransitions. [2024-10-18 21:49:30,221 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-18 21:49:30,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-18 21:49:30,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 21:49:30,223 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-18 21:49:30,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (15)] Waiting until timeout for monitored process [2024-10-18 21:49:30,282 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-18 21:49:30,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:49:30,283 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-18 21:49:30,283 INFO L333 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, 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;@499ab41a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=DFS, mConComCheckerCriterion=DEFAULT, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=true, mConComCheckerCriterionLimit=5, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-10-18 21:49:30,283 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-18 21:49:36,924 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 21:49:36,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:49:36,924 INFO L85 PathProgramCache]: Analyzing trace with hash -332698875, now seen corresponding path program 1 times [2024-10-18 21:49:36,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 21:49:36,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484382506] [2024-10-18 21:49:36,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:49:36,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:49:36,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:49:36,959 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2024-10-18 21:49:36,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 21:49:36,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484382506] [2024-10-18 21:49:36,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484382506] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 21:49:36,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 21:49:36,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-18 21:49:36,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547273398] [2024-10-18 21:49:36,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 21:49:36,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-18 21:49:36,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 21:49:36,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-18 21:49:36,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-18 21:49:36,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:49:36,961 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 21:49:36,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 74.5) internal successors, (149), 2 states have internal predecessors, (149), 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) [2024-10-18 21:49:36,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:49:37,569 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:49:37,570 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 568 treesize of output 520 [2024-10-18 21:49:37,594 INFO L85 PathProgramCache]: Analyzing trace with hash 90793881, now seen corresponding path program 1 times [2024-10-18 21:49:37,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:49:37,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:49:37,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:49:37,604 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:49:37,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:49:38,849 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:49:38,850 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 270 treesize of output 246 [2024-10-18 21:49:38,881 INFO L85 PathProgramCache]: Analyzing trace with hash -564530689, now seen corresponding path program 1 times [2024-10-18 21:49:38,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:49:38,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:49:38,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:49:38,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:49:38,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:49:38,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:49:38,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:49:38,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:49:38,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-18 21:49:38,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-18 21:49:39,055 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 262 treesize of output 238 [2024-10-18 21:49:39,087 INFO L85 PathProgramCache]: Analyzing trace with hash 90794095, now seen corresponding path program 1 times [2024-10-18 21:49:39,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:49:39,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:49:39,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:49:39,097 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:49:39,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:49:39,272 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:49:39,272 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 270 treesize of output 246 [2024-10-18 21:49:39,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1485993387, now seen corresponding path program 1 times [2024-10-18 21:49:39,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:49:39,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:49:39,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:49:39,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:49:39,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:49:39,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:49:39,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:49:39,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:49:39,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-18 21:49:39,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-10-18 21:49:39,576 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 506 treesize of output 458 [2024-10-18 21:49:39,598 INFO L85 PathProgramCache]: Analyzing trace with hash 90794115, now seen corresponding path program 1 times [2024-10-18 21:49:39,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:49:39,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:49:39,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:49:39,609 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:49:39,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:49:39,762 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:49:39,763 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 1038 treesize of output 942 [2024-10-18 21:49:39,805 INFO L85 PathProgramCache]: Analyzing trace with hash 587727748, now seen corresponding path program 1 times [2024-10-18 21:49:39,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:49:39,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:49:39,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:49:39,821 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:49:39,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:49:41,311 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:49:41,311 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 288 treesize of output 264 [2024-10-18 21:49:41,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1551727320, now seen corresponding path program 1 times [2024-10-18 21:49:41,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:49:41,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:49:41,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:49:41,371 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:49:41,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:49:42,796 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:49:42,796 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 568 treesize of output 520 [2024-10-18 21:49:42,825 INFO L85 PathProgramCache]: Analyzing trace with hash 219756997, now seen corresponding path program 1 times [2024-10-18 21:49:42,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:49:42,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:49:42,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:49:42,848 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:49:42,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:49:45,031 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:49:45,031 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 550 treesize of output 502 [2024-10-18 21:49:45,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1242044664, now seen corresponding path program 1 times [2024-10-18 21:49:45,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:49:45,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:49:45,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:49:45,082 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:49:45,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:49:46,698 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:49:46,698 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 514 treesize of output 466 [2024-10-18 21:49:48,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1976105062, now seen corresponding path program 1 times [2024-10-18 21:49:48,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:49:48,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:49:48,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:49:48,746 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:49:48,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:49:51,677 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:49:51,677 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 288 treesize of output 264 [2024-10-18 21:49:53,703 INFO L85 PathProgramCache]: Analyzing trace with hash -36768217, now seen corresponding path program 1 times [2024-10-18 21:49:53,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:49:53,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:49:53,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:49:53,735 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:49:53,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:49:55,657 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 506 treesize of output 458 [2024-10-18 21:49:55,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1158856571, now seen corresponding path program 1 times [2024-10-18 21:49:55,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:49:55,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:49:55,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:49:55,719 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:49:55,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:49:58,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:49:58,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140,SelfDestructingSolverStorable141,SelfDestructingSolverStorable142,SelfDestructingSolverStorable143,SelfDestructingSolverStorable137,SelfDestructingSolverStorable148,SelfDestructingSolverStorable138,SelfDestructingSolverStorable149,SelfDestructingSolverStorable139,SelfDestructingSolverStorable144,SelfDestructingSolverStorable145,SelfDestructingSolverStorable135,SelfDestructingSolverStorable146,SelfDestructingSolverStorable136,SelfDestructingSolverStorable147 [2024-10-18 21:49:58,738 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 21:49:58,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:49:58,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1442020080, now seen corresponding path program 1 times [2024-10-18 21:49:58,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 21:49:58,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232927090] [2024-10-18 21:49:58,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:49:58,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:49:58,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:49:58,774 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:49:58,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:49:58,817 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-18 21:49:58,817 INFO L332 BasicCegarLoop]: Counterexample is feasible [2024-10-18 21:49:58,818 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2024-10-18 21:49:58,818 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-10-18 21:49:58,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2024-10-18 21:49:58,819 INFO L414 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-18 21:49:58,819 WARN L239 ceAbstractionStarter]: 13 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-18 21:49:58,819 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 14 thread instances. [2024-10-18 21:49:58,864 INFO L143 ThreadInstanceAdder]: Constructed 14 joinOtherThreadTransitions. [2024-10-18 21:49:58,867 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-18 21:49:58,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-18 21:49:58,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 21:49:58,870 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-18 21:49:58,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (16)] Waiting until timeout for monitored process [2024-10-18 21:49:58,936 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-18 21:49:58,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:49:58,937 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-18 21:49:58,937 INFO L333 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, 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;@499ab41a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=DFS, mConComCheckerCriterion=DEFAULT, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=true, mConComCheckerCriterionLimit=5, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-10-18 21:49:58,938 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-18 21:50:06,555 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 21:50:06,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:50:06,555 INFO L85 PathProgramCache]: Analyzing trace with hash -1364636517, now seen corresponding path program 1 times [2024-10-18 21:50:06,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 21:50:06,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828482189] [2024-10-18 21:50:06,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:50:06,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:50:06,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:50:06,593 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2024-10-18 21:50:06,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 21:50:06,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828482189] [2024-10-18 21:50:06,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828482189] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 21:50:06,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 21:50:06,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-18 21:50:06,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020702401] [2024-10-18 21:50:06,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 21:50:06,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-18 21:50:06,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 21:50:06,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-18 21:50:06,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-18 21:50:06,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:50:06,595 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 21:50:06,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 80.0) internal successors, (160), 2 states have internal predecessors, (160), 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) [2024-10-18 21:50:06,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:50:07,258 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:50:07,258 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 1038 treesize of output 942 [2024-10-18 21:50:07,285 INFO L85 PathProgramCache]: Analyzing trace with hash -293217663, now seen corresponding path program 1 times [2024-10-18 21:50:07,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:50:07,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:50:07,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:50:07,296 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:50:07,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:50:08,581 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 542 treesize of output 494 [2024-10-18 21:50:08,605 INFO L85 PathProgramCache]: Analyzing trace with hash -724850789, now seen corresponding path program 1 times [2024-10-18 21:50:08,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:50:08,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:50:08,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:50:08,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:50:08,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:50:08,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:50:08,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:50:08,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:50:08,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-18 21:50:08,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-18 21:50:08,836 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:50:08,836 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 270 treesize of output 246 [2024-10-18 21:50:08,897 INFO L85 PathProgramCache]: Analyzing trace with hash -293217439, now seen corresponding path program 1 times [2024-10-18 21:50:08,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:50:08,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:50:08,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:50:08,909 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:50:08,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:50:09,081 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 542 treesize of output 494 [2024-10-18 21:50:09,105 INFO L85 PathProgramCache]: Analyzing trace with hash 239178820, now seen corresponding path program 1 times [2024-10-18 21:50:09,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:50:09,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:50:09,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:50:09,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:50:09,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:50:09,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:50:09,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:50:09,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:50:09,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-18 21:50:09,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-10-18 21:50:09,356 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:50:09,356 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 550 treesize of output 502 [2024-10-18 21:50:09,397 INFO L85 PathProgramCache]: Analyzing trace with hash -293217419, now seen corresponding path program 1 times [2024-10-18 21:50:09,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:50:09,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:50:09,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:50:09,408 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:50:09,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:50:09,560 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:50:09,560 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 532 treesize of output 484 [2024-10-18 21:50:09,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1561700307, now seen corresponding path program 1 times [2024-10-18 21:50:09,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:50:09,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:50:09,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:50:09,602 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:50:09,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:50:10,963 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:50:10,964 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 514 treesize of output 466 [2024-10-18 21:50:11,006 INFO L85 PathProgramCache]: Analyzing trace with hash -620227326, now seen corresponding path program 1 times [2024-10-18 21:50:11,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:50:11,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:50:11,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:50:11,024 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:50:11,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:50:12,393 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:50:12,393 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 270 treesize of output 246 [2024-10-18 21:50:12,444 INFO L85 PathProgramCache]: Analyzing trace with hash 2008411594, now seen corresponding path program 1 times [2024-10-18 21:50:12,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:50:12,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:50:12,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:50:12,463 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:50:12,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:50:14,600 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:50:14,600 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 550 treesize of output 502 [2024-10-18 21:50:14,630 INFO L85 PathProgramCache]: Analyzing trace with hash -14877739, now seen corresponding path program 1 times [2024-10-18 21:50:14,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:50:14,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:50:14,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:50:14,654 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:50:14,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:50:16,301 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:50:16,302 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 532 treesize of output 484 [2024-10-18 21:50:16,332 INFO L85 PathProgramCache]: Analyzing trace with hash 65152793, now seen corresponding path program 1 times [2024-10-18 21:50:16,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:50:16,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:50:16,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:50:16,358 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:50:16,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:50:19,321 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:50:19,322 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 532 treesize of output 484 [2024-10-18 21:50:19,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1944863854, now seen corresponding path program 1 times [2024-10-18 21:50:19,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:50:19,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:50:19,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:50:19,382 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:50:19,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:50:21,355 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:50:21,355 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 532 treesize of output 484 [2024-10-18 21:50:21,380 INFO L85 PathProgramCache]: Analyzing trace with hash -882233848, now seen corresponding path program 1 times [2024-10-18 21:50:21,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:50:21,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:50:21,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:50:21,412 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:50:21,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:50:24,914 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:50:24,914 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 270 treesize of output 246 [2024-10-18 21:50:24,954 INFO L85 PathProgramCache]: Analyzing trace with hash -543386110, now seen corresponding path program 1 times [2024-10-18 21:50:24,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:50:24,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:50:24,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:50:24,992 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:50:25,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:50:26,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:50:26,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151,SelfDestructingSolverStorable162,SelfDestructingSolverStorable152,SelfDestructingSolverStorable163,SelfDestructingSolverStorable153,SelfDestructingSolverStorable164,SelfDestructingSolverStorable154,SelfDestructingSolverStorable165,SelfDestructingSolverStorable160,SelfDestructingSolverStorable161,SelfDestructingSolverStorable159,SelfDestructingSolverStorable155,SelfDestructingSolverStorable166,SelfDestructingSolverStorable156,SelfDestructingSolverStorable157,SelfDestructingSolverStorable158 [2024-10-18 21:50:26,747 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 21:50:26,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:50:26,748 INFO L85 PathProgramCache]: Analyzing trace with hash -683349336, now seen corresponding path program 1 times [2024-10-18 21:50:26,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 21:50:26,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703259713] [2024-10-18 21:50:26,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:50:26,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:50:26,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:50:26,786 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:50:26,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:50:26,834 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-18 21:50:26,834 INFO L332 BasicCegarLoop]: Counterexample is feasible [2024-10-18 21:50:26,834 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2024-10-18 21:50:26,834 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-10-18 21:50:26,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2024-10-18 21:50:26,836 INFO L414 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-18 21:50:26,836 WARN L239 ceAbstractionStarter]: 14 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-18 21:50:26,836 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 15 thread instances. [2024-10-18 21:50:26,882 INFO L143 ThreadInstanceAdder]: Constructed 15 joinOtherThreadTransitions. [2024-10-18 21:50:26,885 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-18 21:50:26,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-18 21:50:26,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 21:50:26,886 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-18 21:50:26,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (17)] Waiting until timeout for monitored process [2024-10-18 21:50:26,946 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-18 21:50:26,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:50:26,947 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-18 21:50:26,947 INFO L333 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, 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;@499ab41a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=DFS, mConComCheckerCriterion=DEFAULT, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=true, mConComCheckerCriterionLimit=5, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-10-18 21:50:26,947 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-18 21:50:35,705 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 21:50:35,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:50:35,706 INFO L85 PathProgramCache]: Analyzing trace with hash 42035270, now seen corresponding path program 1 times [2024-10-18 21:50:35,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 21:50:35,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976788584] [2024-10-18 21:50:35,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:50:35,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:50:35,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:50:35,746 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2024-10-18 21:50:35,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 21:50:35,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976788584] [2024-10-18 21:50:35,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976788584] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 21:50:35,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 21:50:35,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-18 21:50:35,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500706905] [2024-10-18 21:50:35,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 21:50:35,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-18 21:50:35,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 21:50:35,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-18 21:50:35,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-18 21:50:35,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:50:35,748 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 21:50:35,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 85.5) internal successors, (171), 2 states have internal predecessors, (171), 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) [2024-10-18 21:50:35,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:50:36,435 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 542 treesize of output 494 [2024-10-18 21:50:36,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1517807638, now seen corresponding path program 1 times [2024-10-18 21:50:36,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:50:36,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:50:36,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:50:36,471 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:50:36,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:50:37,857 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:50:37,858 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 270 treesize of output 246 [2024-10-18 21:50:37,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1541275551, now seen corresponding path program 1 times [2024-10-18 21:50:37,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:50:37,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:50:37,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:50:37,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:50:37,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:50:37,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:50:37,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:50:38,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:50:38,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-18 21:50:38,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-18 21:50:38,099 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 1030 treesize of output 934 [2024-10-18 21:50:38,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1517807396, now seen corresponding path program 1 times [2024-10-18 21:50:38,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:50:38,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:50:38,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:50:38,136 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:50:38,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:50:38,309 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 506 treesize of output 458 [2024-10-18 21:50:38,333 INFO L85 PathProgramCache]: Analyzing trace with hash 830191008, now seen corresponding path program 1 times [2024-10-18 21:50:38,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:50:38,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:50:38,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:50:38,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:50:38,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:50:38,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:50:38,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:50:38,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:50:38,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-18 21:50:38,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-10-18 21:50:38,634 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:50:38,635 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 568 treesize of output 520 [2024-10-18 21:50:38,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1517807376, now seen corresponding path program 1 times [2024-10-18 21:50:38,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:50:38,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:50:38,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:50:38,686 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:50:38,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:50:38,884 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:50:38,884 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 532 treesize of output 484 [2024-10-18 21:50:38,909 INFO L85 PathProgramCache]: Analyzing trace with hash -409072593, now seen corresponding path program 1 times [2024-10-18 21:50:38,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:50:38,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:50:38,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:50:38,923 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:50:38,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:50:40,300 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:50:40,300 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 514 treesize of output 466 [2024-10-18 21:50:40,327 INFO L85 PathProgramCache]: Analyzing trace with hash 963605891, now seen corresponding path program 1 times [2024-10-18 21:50:40,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:50:40,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:50:40,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:50:40,345 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:50:40,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:50:41,763 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:50:41,764 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 514 treesize of output 466 [2024-10-18 21:50:41,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1560424822, now seen corresponding path program 1 times [2024-10-18 21:50:41,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:50:41,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:50:41,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:50:41,857 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:50:41,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:50:44,073 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:50:44,073 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 568 treesize of output 520 [2024-10-18 21:50:44,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1206490342, now seen corresponding path program 1 times [2024-10-18 21:50:44,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:50:44,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:50:44,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:50:44,124 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:50:44,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:50:46,004 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:50:46,004 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 550 treesize of output 502 [2024-10-18 21:50:46,063 INFO L85 PathProgramCache]: Analyzing trace with hash 882053384, now seen corresponding path program 1 times [2024-10-18 21:50:46,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:50:46,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:50:46,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:50:46,089 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:50:46,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:50:49,040 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:50:49,040 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 270 treesize of output 246 [2024-10-18 21:50:49,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1266720204, now seen corresponding path program 1 times [2024-10-18 21:50:49,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:50:49,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:50:49,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:50:49,103 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:50:49,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:50:51,312 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:50:51,312 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 514 treesize of output 466 [2024-10-18 21:50:51,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1465730914, now seen corresponding path program 1 times [2024-10-18 21:50:51,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:50:51,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:50:51,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:50:51,391 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:50:51,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:50:54,859 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:50:54,859 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 270 treesize of output 246 [2024-10-18 21:50:54,898 INFO L85 PathProgramCache]: Analyzing trace with hash 866260967, now seen corresponding path program 1 times [2024-10-18 21:50:54,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:50:54,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:50:54,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:50:54,935 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:50:54,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:50:57,441 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:50:57,441 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 568 treesize of output 520 [2024-10-18 21:50:57,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1692602472, now seen corresponding path program 1 times [2024-10-18 21:50:57,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:50:57,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:50:57,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:50:57,508 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:50:57,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:50:59,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:50:59,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173,SelfDestructingSolverStorable184,SelfDestructingSolverStorable174,SelfDestructingSolverStorable175,SelfDestructingSolverStorable176,SelfDestructingSolverStorable180,SelfDestructingSolverStorable170,SelfDestructingSolverStorable181,SelfDestructingSolverStorable171,SelfDestructingSolverStorable182,SelfDestructingSolverStorable172,SelfDestructingSolverStorable183,SelfDestructingSolverStorable177,SelfDestructingSolverStorable178,SelfDestructingSolverStorable168,SelfDestructingSolverStorable179,SelfDestructingSolverStorable169 [2024-10-18 21:50:59,322 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 21:50:59,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:50:59,322 INFO L85 PathProgramCache]: Analyzing trace with hash 2136438022, now seen corresponding path program 1 times [2024-10-18 21:50:59,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 21:50:59,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846869376] [2024-10-18 21:50:59,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:50:59,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:50:59,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:50:59,364 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:50:59,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:50:59,419 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-18 21:50:59,419 INFO L332 BasicCegarLoop]: Counterexample is feasible [2024-10-18 21:50:59,419 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2024-10-18 21:50:59,420 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-10-18 21:50:59,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2024-10-18 21:50:59,421 INFO L414 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-18 21:50:59,421 WARN L239 ceAbstractionStarter]: 15 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-18 21:50:59,421 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 16 thread instances. [2024-10-18 21:50:59,485 INFO L143 ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions. [2024-10-18 21:50:59,489 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-18 21:50:59,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-18 21:50:59,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 21:50:59,491 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-18 21:50:59,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (18)] Waiting until timeout for monitored process [2024-10-18 21:50:59,558 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-18 21:50:59,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:50:59,559 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-18 21:50:59,559 INFO L333 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, 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;@499ab41a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=DFS, mConComCheckerCriterion=DEFAULT, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=true, mConComCheckerCriterionLimit=5, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-10-18 21:50:59,559 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-18 21:51:09,518 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 21:51:09,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:51:09,518 INFO L85 PathProgramCache]: Analyzing trace with hash -421762050, now seen corresponding path program 1 times [2024-10-18 21:51:09,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 21:51:09,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652652256] [2024-10-18 21:51:09,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:51:09,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:51:09,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:51:09,565 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2024-10-18 21:51:09,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 21:51:09,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652652256] [2024-10-18 21:51:09,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652652256] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 21:51:09,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 21:51:09,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-18 21:51:09,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079414156] [2024-10-18 21:51:09,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 21:51:09,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-18 21:51:09,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 21:51:09,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-18 21:51:09,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-18 21:51:09,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:51:09,567 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 21:51:09,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 91.0) internal successors, (182), 2 states have internal predecessors, (182), 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) [2024-10-18 21:51:09,567 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:51:10,329 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:51:10,329 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 1038 treesize of output 942 [2024-10-18 21:51:10,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1912345656, now seen corresponding path program 1 times [2024-10-18 21:51:10,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:51:10,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:51:10,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:51:10,405 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:51:10,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:51:11,892 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:51:11,893 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 550 treesize of output 502 [2024-10-18 21:51:11,923 INFO L85 PathProgramCache]: Analyzing trace with hash -114516553, now seen corresponding path program 1 times [2024-10-18 21:51:11,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:51:11,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:51:11,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:51:11,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:51:11,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:51:11,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:51:11,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:51:12,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:51:12,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-18 21:51:12,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-18 21:51:12,108 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:51:12,108 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 1038 treesize of output 942 [2024-10-18 21:51:12,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1912345910, now seen corresponding path program 1 times [2024-10-18 21:51:12,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:51:12,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:51:12,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:51:12,174 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:51:12,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:51:12,356 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:51:12,356 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 550 treesize of output 502 [2024-10-18 21:51:12,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1372533355, now seen corresponding path program 1 times [2024-10-18 21:51:12,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:51:12,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:51:12,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:51:12,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:51:12,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:51:12,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:51:12,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:51:12,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:51:12,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-18 21:51:12,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-10-18 21:51:12,689 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:51:12,689 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 1038 treesize of output 942 [2024-10-18 21:51:14,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1912345930, now seen corresponding path program 1 times [2024-10-18 21:51:14,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:51:14,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:51:14,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:51:14,728 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:51:14,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:51:14,880 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:51:14,880 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 1038 treesize of output 942 [2024-10-18 21:51:14,905 INFO L85 PathProgramCache]: Analyzing trace with hash -342528166, now seen corresponding path program 1 times [2024-10-18 21:51:14,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:51:14,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:51:14,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:51:14,925 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:51:14,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:51:16,179 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:51:16,179 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 550 treesize of output 502 [2024-10-18 21:51:16,224 INFO L85 PathProgramCache]: Analyzing trace with hash 587268494, now seen corresponding path program 1 times [2024-10-18 21:51:16,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:51:16,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:51:16,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:51:16,410 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:51:16,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:51:17,866 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:51:17,866 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 532 treesize of output 484 [2024-10-18 21:51:17,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1785385244, now seen corresponding path program 1 times [2024-10-18 21:51:17,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:51:17,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:51:17,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:51:17,912 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:51:17,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:51:20,182 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:51:20,183 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 514 treesize of output 466 [2024-10-18 21:51:20,215 INFO L85 PathProgramCache]: Analyzing trace with hash 176553644, now seen corresponding path program 1 times [2024-10-18 21:51:20,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:51:20,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:51:20,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:51:20,242 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:51:20,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:51:21,999 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 506 treesize of output 458 [2024-10-18 21:51:24,022 INFO L85 PathProgramCache]: Analyzing trace with hash -2090629571, now seen corresponding path program 1 times [2024-10-18 21:51:24,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:51:24,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:51:24,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:51:24,049 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:51:24,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:51:27,094 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 506 treesize of output 458 [2024-10-18 21:51:29,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1828849254, now seen corresponding path program 1 times [2024-10-18 21:51:29,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:51:29,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:51:29,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:51:29,146 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:51:29,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:51:31,245 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:51:31,246 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 514 treesize of output 466 [2024-10-18 21:51:31,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1321904589, now seen corresponding path program 1 times [2024-10-18 21:51:31,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:51:31,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:51:31,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:51:31,323 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:51:31,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:51:34,945 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 542 treesize of output 494 [2024-10-18 21:51:34,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1599996350, now seen corresponding path program 1 times [2024-10-18 21:51:34,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:51:34,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:51:35,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:51:35,009 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:51:35,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:51:37,402 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:51:37,402 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 550 treesize of output 502 [2024-10-18 21:51:37,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1630005898, now seen corresponding path program 1 times [2024-10-18 21:51:37,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:51:37,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:51:37,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:51:37,471 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:51:37,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:51:41,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:51:41,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195,SelfDestructingSolverStorable196,SelfDestructingSolverStorable186,SelfDestructingSolverStorable197,SelfDestructingSolverStorable187,SelfDestructingSolverStorable198,SelfDestructingSolverStorable191,SelfDestructingSolverStorable192,SelfDestructingSolverStorable193,SelfDestructingSolverStorable194,SelfDestructingSolverStorable190,SelfDestructingSolverStorable188,SelfDestructingSolverStorable199,SelfDestructingSolverStorable189,SelfDestructingSolverStorable200,SelfDestructingSolverStorable201,SelfDestructingSolverStorable202 [2024-10-18 21:51:41,152 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 21:51:41,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:51:41,153 INFO L85 PathProgramCache]: Analyzing trace with hash 722427968, now seen corresponding path program 1 times [2024-10-18 21:51:41,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 21:51:41,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227158057] [2024-10-18 21:51:41,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:51:41,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:51:41,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:51:41,208 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:51:41,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:51:41,296 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-18 21:51:41,297 INFO L332 BasicCegarLoop]: Counterexample is feasible [2024-10-18 21:51:41,297 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2024-10-18 21:51:41,297 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-10-18 21:51:41,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2024-10-18 21:51:41,299 INFO L414 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-18 21:51:41,299 WARN L239 ceAbstractionStarter]: 16 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-18 21:51:41,299 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 17 thread instances. [2024-10-18 21:51:41,351 INFO L143 ThreadInstanceAdder]: Constructed 17 joinOtherThreadTransitions. [2024-10-18 21:51:41,356 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-18 21:51:41,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-18 21:51:41,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 21:51:41,358 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) [2024-10-18 21:51:41,360 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 [2024-10-18 21:51:41,423 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-18 21:51:41,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:51:41,424 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-18 21:51:41,424 INFO L333 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, 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;@499ab41a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=DFS, mConComCheckerCriterion=DEFAULT, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=true, mConComCheckerCriterionLimit=5, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-10-18 21:51:41,424 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-18 21:51:52,421 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 21:51:52,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:51:52,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1078644855, now seen corresponding path program 1 times [2024-10-18 21:51:52,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 21:51:52,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466090599] [2024-10-18 21:51:52,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:51:52,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:51:52,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:51:52,469 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2024-10-18 21:51:52,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 21:51:52,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466090599] [2024-10-18 21:51:52,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466090599] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 21:51:52,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 21:51:52,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-18 21:51:52,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172417405] [2024-10-18 21:51:52,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 21:51:52,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-18 21:51:52,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 21:51:52,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-18 21:51:52,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-18 21:51:52,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:51:52,470 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 21:51:52,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 96.5) internal successors, (193), 2 states have internal predecessors, (193), 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) [2024-10-18 21:51:52,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:51:53,257 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:51:53,257 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 270 treesize of output 246 [2024-10-18 21:51:53,300 INFO L85 PathProgramCache]: Analyzing trace with hash 589315135, now seen corresponding path program 1 times [2024-10-18 21:51:53,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:51:53,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:51:53,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:51:53,314 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:51:53,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:51:54,821 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:51:54,822 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 532 treesize of output 484 [2024-10-18 21:51:54,850 INFO L85 PathProgramCache]: Analyzing trace with hash -287938548, now seen corresponding path program 1 times [2024-10-18 21:51:54,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:51:54,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:51:54,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:51:54,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:51:54,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:51:54,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:51:54,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:51:54,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:51:54,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-18 21:51:54,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-18 21:51:55,032 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:51:55,033 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 270 treesize of output 246 [2024-10-18 21:51:55,078 INFO L85 PathProgramCache]: Analyzing trace with hash 589315401, now seen corresponding path program 1 times [2024-10-18 21:51:55,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:51:55,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:51:55,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:51:55,091 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:51:55,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:51:55,264 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 506 treesize of output 458 [2024-10-18 21:51:55,287 INFO L85 PathProgramCache]: Analyzing trace with hash -2048711099, now seen corresponding path program 1 times [2024-10-18 21:51:55,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:51:55,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:51:55,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:51:55,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:51:55,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:51:55,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:51:55,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:51:55,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:51:55,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-18 21:51:55,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-10-18 21:51:55,557 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:51:55,557 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 270 treesize of output 246 [2024-10-18 21:51:57,579 INFO L85 PathProgramCache]: Analyzing trace with hash 589315421, now seen corresponding path program 1 times [2024-10-18 21:51:57,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:51:57,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:51:57,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:51:57,598 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:51:57,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:51:57,764 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:51:57,764 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 288 treesize of output 264 [2024-10-18 21:51:59,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1720759252, now seen corresponding path program 1 times [2024-10-18 21:51:59,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:51:59,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:51:59,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:51:59,822 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:51:59,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:52:01,265 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:52:01,265 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 514 treesize of output 466 [2024-10-18 21:52:01,288 INFO L85 PathProgramCache]: Analyzing trace with hash -905513152, now seen corresponding path program 1 times [2024-10-18 21:52:01,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:52:01,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:52:01,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:52:01,309 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:52:01,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:52:02,875 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 506 treesize of output 458 [2024-10-18 21:52:02,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1365435161, now seen corresponding path program 1 times [2024-10-18 21:52:02,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:52:02,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:52:02,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:52:02,921 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:52:02,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:52:05,300 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:52:05,300 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 532 treesize of output 484 [2024-10-18 21:52:05,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1618817478, now seen corresponding path program 1 times [2024-10-18 21:52:05,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:52:05,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:52:05,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:52:05,352 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:52:05,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:52:07,145 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:52:07,145 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 568 treesize of output 520 [2024-10-18 21:52:07,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1216166402, now seen corresponding path program 1 times [2024-10-18 21:52:07,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:52:07,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:52:07,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:52:07,201 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:52:07,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:52:10,308 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:52:10,308 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 550 treesize of output 502 [2024-10-18 21:52:10,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1224364535, now seen corresponding path program 1 times [2024-10-18 21:52:10,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:52:10,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:52:10,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:52:10,389 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:52:10,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:52:12,571 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 506 treesize of output 458 [2024-10-18 21:52:12,599 INFO L85 PathProgramCache]: Analyzing trace with hash 801436300, now seen corresponding path program 1 times [2024-10-18 21:52:12,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:52:12,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:52:12,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:52:12,632 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:52:12,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:52:16,284 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 506 treesize of output 458 [2024-10-18 21:52:16,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1338640550, now seen corresponding path program 1 times [2024-10-18 21:52:16,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:52:16,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:52:16,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:52:16,348 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:52:16,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:52:18,807 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:52:18,807 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 288 treesize of output 264 [2024-10-18 21:52:18,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1925865631, now seen corresponding path program 1 times [2024-10-18 21:52:18,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:52:18,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:52:18,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:52:18,877 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:52:18,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:52:23,162 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:52:23,163 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 532 treesize of output 484 [2024-10-18 21:52:25,190 INFO L85 PathProgramCache]: Analyzing trace with hash 85983792, now seen corresponding path program 1 times [2024-10-18 21:52:25,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:52:25,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:52:25,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:52:25,239 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:52:25,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:52:27,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:52:27,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220,SelfDestructingSolverStorable207,SelfDestructingSolverStorable218,SelfDestructingSolverStorable208,SelfDestructingSolverStorable219,SelfDestructingSolverStorable209,SelfDestructingSolverStorable214,SelfDestructingSolverStorable204,SelfDestructingSolverStorable215,SelfDestructingSolverStorable205,SelfDestructingSolverStorable216,SelfDestructingSolverStorable206,SelfDestructingSolverStorable217,SelfDestructingSolverStorable210,SelfDestructingSolverStorable221,SelfDestructingSolverStorable211,SelfDestructingSolverStorable212,SelfDestructingSolverStorable213 [2024-10-18 21:52:27,366 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 21:52:27,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:52:27,366 INFO L85 PathProgramCache]: Analyzing trace with hash 741501700, now seen corresponding path program 1 times [2024-10-18 21:52:27,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 21:52:27,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049016603] [2024-10-18 21:52:27,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:52:27,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:52:27,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:52:27,415 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:52:27,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:52:27,482 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-18 21:52:27,482 INFO L332 BasicCegarLoop]: Counterexample is feasible [2024-10-18 21:52:27,482 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2024-10-18 21:52:27,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-10-18 21:52:27,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2024-10-18 21:52:27,484 INFO L414 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-18 21:52:27,484 WARN L239 ceAbstractionStarter]: 17 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-18 21:52:27,484 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 18 thread instances. [2024-10-18 21:52:27,536 INFO L143 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2024-10-18 21:52:27,541 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-18 21:52:27,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-18 21:52:27,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 21:52:27,543 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-18 21:52:27,548 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (20)] Waiting until timeout for monitored process [2024-10-18 21:52:27,614 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-18 21:52:27,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:52:27,615 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-18 21:52:27,615 INFO L333 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, 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;@499ab41a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=DFS, mConComCheckerCriterion=DEFAULT, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=true, mConComCheckerCriterionLimit=5, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-10-18 21:52:27,615 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-18 21:52:39,752 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 21:52:39,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:52:39,752 INFO L85 PathProgramCache]: Analyzing trace with hash 702507337, now seen corresponding path program 1 times [2024-10-18 21:52:39,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 21:52:39,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827070992] [2024-10-18 21:52:39,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:52:39,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:52:39,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:52:39,804 INFO L134 CoverageAnalysis]: Checked inductivity of 495 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2024-10-18 21:52:39,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 21:52:39,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827070992] [2024-10-18 21:52:39,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827070992] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 21:52:39,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 21:52:39,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-18 21:52:39,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732951234] [2024-10-18 21:52:39,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 21:52:39,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-18 21:52:39,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 21:52:39,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-18 21:52:39,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-18 21:52:39,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:52:39,806 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 21:52:39,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 102.0) internal successors, (204), 2 states have internal predecessors, (204), 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) [2024-10-18 21:52:39,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:52:40,626 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:52:40,626 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 270 treesize of output 246 [2024-10-18 21:52:40,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1903223543, now seen corresponding path program 1 times [2024-10-18 21:52:40,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:52:40,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:52:40,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:52:40,681 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:52:40,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:52:42,426 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:52:42,426 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 550 treesize of output 502 [2024-10-18 21:52:42,478 INFO L85 PathProgramCache]: Analyzing trace with hash 463104037, now seen corresponding path program 1 times [2024-10-18 21:52:42,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:52:42,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:52:42,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:52:42,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:52:42,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:52:42,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:52:42,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:52:42,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:52:42,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-18 21:52:42,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-18 21:52:42,667 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:52:42,667 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 270 treesize of output 246 [2024-10-18 21:52:42,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1903223825, now seen corresponding path program 1 times [2024-10-18 21:52:42,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:52:42,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:52:42,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:52:42,756 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:52:42,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:52:42,979 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:52:42,980 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 514 treesize of output 466 [2024-10-18 21:52:43,021 INFO L85 PathProgramCache]: Analyzing trace with hash 690218624, now seen corresponding path program 1 times [2024-10-18 21:52:43,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:52:43,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:52:43,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:52:43,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:52:43,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:52:43,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:52:43,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:52:43,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:52:43,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-18 21:52:43,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-10-18 21:52:43,290 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:52:43,291 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 550 treesize of output 502 [2024-10-18 21:52:43,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1903223845, now seen corresponding path program 1 times [2024-10-18 21:52:43,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:52:43,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:52:43,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:52:43,336 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:52:43,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:52:43,547 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:52:43,547 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 550 treesize of output 502 [2024-10-18 21:52:43,655 INFO L85 PathProgramCache]: Analyzing trace with hash 253392975, now seen corresponding path program 1 times [2024-10-18 21:52:43,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:52:43,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:52:43,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:52:43,672 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:52:43,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:52:44,959 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:52:44,959 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 514 treesize of output 466 [2024-10-18 21:52:44,987 INFO L85 PathProgramCache]: Analyzing trace with hash 2139437055, now seen corresponding path program 1 times [2024-10-18 21:52:44,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:52:44,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:52:45,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:52:45,007 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:52:45,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:52:46,553 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 1030 treesize of output 934 [2024-10-18 21:52:46,578 INFO L85 PathProgramCache]: Analyzing trace with hash -673502199, now seen corresponding path program 1 times [2024-10-18 21:52:46,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:52:46,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:52:46,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:52:46,602 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:52:46,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:52:49,129 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:52:49,129 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 568 treesize of output 520 [2024-10-18 21:52:51,154 INFO L85 PathProgramCache]: Analyzing trace with hash 112830869, now seen corresponding path program 1 times [2024-10-18 21:52:51,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:52:51,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:52:51,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:52:51,181 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:52:51,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:52:53,022 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:52:53,022 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 514 treesize of output 466 [2024-10-18 21:52:53,056 INFO L85 PathProgramCache]: Analyzing trace with hash 417036222, now seen corresponding path program 1 times [2024-10-18 21:52:53,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:52:53,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:52:53,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:52:53,085 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:52:53,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:52:56,207 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:52:56,207 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 550 treesize of output 502 [2024-10-18 21:52:56,254 INFO L85 PathProgramCache]: Analyzing trace with hash -230971545, now seen corresponding path program 1 times [2024-10-18 21:52:56,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:52:56,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:52:56,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:52:56,289 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:52:56,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:52:58,428 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:52:58,428 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 1056 treesize of output 960 [2024-10-18 21:52:58,461 INFO L85 PathProgramCache]: Analyzing trace with hash 227769756, now seen corresponding path program 1 times [2024-10-18 21:52:58,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:52:58,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:52:58,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:52:58,497 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:52:58,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:53:02,033 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:53:02,033 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 514 treesize of output 466 [2024-10-18 21:53:02,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1967218546, now seen corresponding path program 1 times [2024-10-18 21:53:02,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:53:02,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:53:02,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:53:02,100 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:53:02,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:53:04,806 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:53:04,806 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 514 treesize of output 466 [2024-10-18 21:53:04,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1358888986, now seen corresponding path program 1 times [2024-10-18 21:53:04,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:53:04,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:53:04,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:53:04,901 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:53:04,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:53:09,358 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:53:09,358 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 270 treesize of output 246 [2024-10-18 21:53:09,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1295272823, now seen corresponding path program 1 times [2024-10-18 21:53:09,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:53:09,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:53:09,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:53:09,474 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:53:09,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:53:12,303 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:53:12,304 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 568 treesize of output 520 [2024-10-18 21:53:12,339 INFO L85 PathProgramCache]: Analyzing trace with hash -685530041, now seen corresponding path program 1 times [2024-10-18 21:53:12,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:53:12,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:53:12,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:53:12,389 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:53:12,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:53:14,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:53:14,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable240,SelfDestructingSolverStorable230,SelfDestructingSolverStorable241,SelfDestructingSolverStorable231,SelfDestructingSolverStorable229,SelfDestructingSolverStorable225,SelfDestructingSolverStorable236,SelfDestructingSolverStorable226,SelfDestructingSolverStorable237,SelfDestructingSolverStorable227,SelfDestructingSolverStorable238,SelfDestructingSolverStorable228,SelfDestructingSolverStorable239,SelfDestructingSolverStorable232,SelfDestructingSolverStorable233,SelfDestructingSolverStorable223,SelfDestructingSolverStorable234,SelfDestructingSolverStorable224,SelfDestructingSolverStorable235 [2024-10-18 21:53:14,524 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 21:53:14,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:53:14,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1152800771, now seen corresponding path program 1 times [2024-10-18 21:53:14,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 21:53:14,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639532877] [2024-10-18 21:53:14,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:53:14,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:53:14,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:53:14,580 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:53:14,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:53:14,659 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-18 21:53:14,659 INFO L332 BasicCegarLoop]: Counterexample is feasible [2024-10-18 21:53:14,660 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2024-10-18 21:53:14,660 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-10-18 21:53:14,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242 [2024-10-18 21:53:14,661 INFO L414 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-18 21:53:14,661 WARN L239 ceAbstractionStarter]: 18 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-18 21:53:14,661 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 19 thread instances. [2024-10-18 21:53:14,715 INFO L143 ThreadInstanceAdder]: Constructed 19 joinOtherThreadTransitions. [2024-10-18 21:53:14,719 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-18 21:53:14,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-18 21:53:14,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 21:53:14,720 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-18 21:53:14,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (21)] Waiting until timeout for monitored process [2024-10-18 21:53:14,787 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-18 21:53:14,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:53:14,788 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-18 21:53:14,788 INFO L333 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, 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;@499ab41a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=DFS, mConComCheckerCriterion=DEFAULT, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=true, mConComCheckerCriterionLimit=5, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-10-18 21:53:14,788 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-18 21:53:28,183 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 21:53:28,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:53:28,183 INFO L85 PathProgramCache]: Analyzing trace with hash 2044294820, now seen corresponding path program 1 times [2024-10-18 21:53:28,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 21:53:28,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315821830] [2024-10-18 21:53:28,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:53:28,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:53:28,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:53:28,237 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2024-10-18 21:53:28,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 21:53:28,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315821830] [2024-10-18 21:53:28,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315821830] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 21:53:28,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 21:53:28,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-18 21:53:28,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933259368] [2024-10-18 21:53:28,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 21:53:28,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-18 21:53:28,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 21:53:28,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-18 21:53:28,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-18 21:53:28,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:53:28,239 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 21:53:28,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 107.5) internal successors, (215), 2 states have internal predecessors, (215), 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) [2024-10-18 21:53:28,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:53:29,263 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:53:29,264 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 270 treesize of output 246 [2024-10-18 21:53:29,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1044463101, now seen corresponding path program 1 times [2024-10-18 21:53:29,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:53:29,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:53:29,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:53:29,303 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:53:29,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:53:30,984 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:53:30,984 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 1038 treesize of output 942 [2024-10-18 21:53:31,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1540644002, now seen corresponding path program 1 times [2024-10-18 21:53:31,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:53:31,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:53:31,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:53:31,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:53:31,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:53:31,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:53:31,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:53:31,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:53:31,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-18 21:53:31,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-18 21:53:31,212 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:53:31,212 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 270 treesize of output 246 [2024-10-18 21:53:31,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1044463397, now seen corresponding path program 1 times [2024-10-18 21:53:31,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:53:31,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:53:31,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:53:31,266 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:53:31,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:53:31,447 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:53:31,448 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 550 treesize of output 502 [2024-10-18 21:53:31,479 INFO L85 PathProgramCache]: Analyzing trace with hash 509908015, now seen corresponding path program 1 times [2024-10-18 21:53:31,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:53:31,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:53:31,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:53:31,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:53:31,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:53:31,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:53:31,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:53:31,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:53:31,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-18 21:53:31,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-10-18 21:53:31,732 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:53:31,732 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 550 treesize of output 502 [2024-10-18 21:53:31,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1044463417, now seen corresponding path program 1 times [2024-10-18 21:53:31,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:53:31,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:53:31,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:53:31,794 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:53:31,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:53:31,960 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:53:31,961 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 514 treesize of output 466 [2024-10-18 21:53:31,987 INFO L85 PathProgramCache]: Analyzing trace with hash 345015486, now seen corresponding path program 1 times [2024-10-18 21:53:31,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:53:31,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:53:32,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:53:32,005 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:53:32,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:53:33,320 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:53:33,320 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 270 treesize of output 246 [2024-10-18 21:53:33,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1081796699, now seen corresponding path program 1 times [2024-10-18 21:53:33,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:53:33,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:53:33,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:53:33,380 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:53:33,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:53:34,979 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 542 treesize of output 494 [2024-10-18 21:53:35,105 INFO L85 PathProgramCache]: Analyzing trace with hash -620668657, now seen corresponding path program 1 times [2024-10-18 21:53:35,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:53:35,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:53:35,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:53:35,130 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:53:35,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:53:37,679 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:53:37,680 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 568 treesize of output 520 [2024-10-18 21:53:37,704 INFO L85 PathProgramCache]: Analyzing trace with hash 236337415, now seen corresponding path program 1 times [2024-10-18 21:53:37,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:53:37,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:53:37,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:53:37,733 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:53:37,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:53:39,660 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:53:39,660 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 514 treesize of output 466 [2024-10-18 21:53:39,685 INFO L85 PathProgramCache]: Analyzing trace with hash 669611569, now seen corresponding path program 1 times [2024-10-18 21:53:39,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:53:39,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:53:39,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:53:39,716 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:53:39,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:53:42,948 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:53:42,948 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 270 treesize of output 246 [2024-10-18 21:53:44,969 INFO L85 PathProgramCache]: Analyzing trace with hash -599697970, now seen corresponding path program 1 times [2024-10-18 21:53:44,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:53:44,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:53:45,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:53:45,004 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:53:45,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:53:47,221 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:53:47,221 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 550 treesize of output 502 [2024-10-18 21:53:47,263 INFO L85 PathProgramCache]: Analyzing trace with hash -645317970, now seen corresponding path program 1 times [2024-10-18 21:53:47,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:53:47,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:53:47,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:53:47,298 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:53:47,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:53:51,121 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:53:51,122 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 514 treesize of output 466 [2024-10-18 21:53:51,151 INFO L85 PathProgramCache]: Analyzing trace with hash -181800293, now seen corresponding path program 1 times [2024-10-18 21:53:51,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:53:51,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:53:51,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:53:51,191 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:53:51,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:53:53,728 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:53:53,729 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 1038 treesize of output 942 [2024-10-18 21:53:53,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1659583769, now seen corresponding path program 1 times [2024-10-18 21:53:53,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:53:53,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:53:53,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:53:53,810 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:53:53,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:53:58,200 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:53:58,200 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 1056 treesize of output 960 [2024-10-18 21:53:58,247 INFO L85 PathProgramCache]: Analyzing trace with hash 307794902, now seen corresponding path program 1 times [2024-10-18 21:53:58,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:53:58,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:53:58,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:53:58,301 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:53:58,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:54:01,145 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:54:01,146 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 568 treesize of output 520 [2024-10-18 21:54:01,174 INFO L85 PathProgramCache]: Analyzing trace with hash 14976241, now seen corresponding path program 1 times [2024-10-18 21:54:01,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:54:01,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:54:01,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:54:01,227 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:54:01,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:54:05,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:54:05,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250,SelfDestructingSolverStorable261,SelfDestructingSolverStorable251,SelfDestructingSolverStorable252,SelfDestructingSolverStorable253,SelfDestructingSolverStorable260,SelfDestructingSolverStorable247,SelfDestructingSolverStorable258,SelfDestructingSolverStorable248,SelfDestructingSolverStorable259,SelfDestructingSolverStorable249,SelfDestructingSolverStorable243,SelfDestructingSolverStorable254,SelfDestructingSolverStorable244,SelfDestructingSolverStorable255,SelfDestructingSolverStorable245,SelfDestructingSolverStorable256,SelfDestructingSolverStorable246,SelfDestructingSolverStorable257 [2024-10-18 21:54:05,706 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 21:54:05,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:54:05,707 INFO L85 PathProgramCache]: Analyzing trace with hash 18370042, now seen corresponding path program 1 times [2024-10-18 21:54:05,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 21:54:05,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295127800] [2024-10-18 21:54:05,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:54:05,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:54:05,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:54:05,761 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:54:05,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:54:05,845 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-18 21:54:05,845 INFO L332 BasicCegarLoop]: Counterexample is feasible [2024-10-18 21:54:05,846 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2024-10-18 21:54:05,846 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-10-18 21:54:05,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable262 [2024-10-18 21:54:05,847 INFO L414 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-18 21:54:05,847 WARN L239 ceAbstractionStarter]: 19 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-18 21:54:05,847 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 20 thread instances. [2024-10-18 21:54:05,905 INFO L143 ThreadInstanceAdder]: Constructed 20 joinOtherThreadTransitions. [2024-10-18 21:54:05,909 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-18 21:54:05,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-18 21:54:05,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 21:54:05,911 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) [2024-10-18 21:54:05,913 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 [2024-10-18 21:54:05,994 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-18 21:54:05,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:54:05,994 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-18 21:54:05,995 INFO L333 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, 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;@499ab41a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=DFS, mConComCheckerCriterion=DEFAULT, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=true, mConComCheckerCriterionLimit=5, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-10-18 21:54:05,995 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-18 21:54:20,707 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 21:54:20,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:54:20,707 INFO L85 PathProgramCache]: Analyzing trace with hash -538155217, now seen corresponding path program 1 times [2024-10-18 21:54:20,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 21:54:20,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097368374] [2024-10-18 21:54:20,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:54:20,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:54:20,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:54:20,767 INFO L134 CoverageAnalysis]: Checked inductivity of 610 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 551 trivial. 0 not checked. [2024-10-18 21:54:20,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 21:54:20,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097368374] [2024-10-18 21:54:20,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097368374] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 21:54:20,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 21:54:20,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-18 21:54:20,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216727303] [2024-10-18 21:54:20,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 21:54:20,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-18 21:54:20,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 21:54:20,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-18 21:54:20,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-18 21:54:20,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:54:20,768 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 21:54:20,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 113.0) internal successors, (226), 2 states have internal predecessors, (226), 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) [2024-10-18 21:54:20,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:54:21,660 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:54:21,660 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 288 treesize of output 264 [2024-10-18 21:54:21,688 INFO L85 PathProgramCache]: Analyzing trace with hash 653746639, now seen corresponding path program 1 times [2024-10-18 21:54:21,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:54:21,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:54:21,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:54:21,705 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:54:21,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:54:23,472 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:54:23,472 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 568 treesize of output 520 [2024-10-18 21:54:23,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1911889971, now seen corresponding path program 1 times [2024-10-18 21:54:23,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:54:23,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:54:23,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:54:23,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:54:23,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:54:23,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:54:23,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:54:23,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:54:23,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-18 21:54:23,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-18 21:54:23,694 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 262 treesize of output 238 [2024-10-18 21:54:23,723 INFO L85 PathProgramCache]: Analyzing trace with hash 653746949, now seen corresponding path program 1 times [2024-10-18 21:54:23,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:54:23,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:54:23,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:54:23,740 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:54:23,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:54:23,923 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:54:23,923 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 532 treesize of output 484 [2024-10-18 21:54:23,947 INFO L85 PathProgramCache]: Analyzing trace with hash 281149991, now seen corresponding path program 1 times [2024-10-18 21:54:23,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:54:23,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:54:23,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:54:24,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:54:24,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:54:24,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:54:24,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:54:24,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:54:24,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-18 21:54:24,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-10-18 21:54:24,235 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:54:24,235 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 1056 treesize of output 960 [2024-10-18 21:54:24,266 INFO L85 PathProgramCache]: Analyzing trace with hash 653746969, now seen corresponding path program 1 times [2024-10-18 21:54:24,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:54:24,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:54:24,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:54:24,283 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:54:24,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:54:24,433 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 542 treesize of output 494 [2024-10-18 21:54:24,454 INFO L85 PathProgramCache]: Analyzing trace with hash -344861738, now seen corresponding path program 1 times [2024-10-18 21:54:24,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:54:24,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:54:24,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:54:24,634 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:54:24,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:54:25,928 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 262 treesize of output 238 [2024-10-18 21:54:25,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1185097793, now seen corresponding path program 1 times [2024-10-18 21:54:25,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:54:25,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:54:25,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:54:25,984 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:54:25,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:54:27,633 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:54:27,633 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 270 treesize of output 246 [2024-10-18 21:54:27,672 INFO L85 PathProgramCache]: Analyzing trace with hash 726005690, now seen corresponding path program 1 times [2024-10-18 21:54:27,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:54:27,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:54:27,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:54:27,698 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:54:27,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:54:30,123 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 542 treesize of output 494 [2024-10-18 21:54:32,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1812834030, now seen corresponding path program 1 times [2024-10-18 21:54:32,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:54:32,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:54:32,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:54:32,174 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:54:32,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:54:34,343 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:54:34,344 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 1038 treesize of output 942 [2024-10-18 21:54:34,387 INFO L85 PathProgramCache]: Analyzing trace with hash 13212763, now seen corresponding path program 1 times [2024-10-18 21:54:34,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:54:34,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:54:34,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:54:34,421 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:54:34,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:54:37,503 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 542 treesize of output 494 [2024-10-18 21:54:37,523 INFO L85 PathProgramCache]: Analyzing trace with hash -626172991, now seen corresponding path program 1 times [2024-10-18 21:54:37,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:54:37,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:54:37,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:54:37,561 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:54:37,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:54:39,814 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 542 treesize of output 494 [2024-10-18 21:54:39,839 INFO L85 PathProgramCache]: Analyzing trace with hash 642044223, now seen corresponding path program 1 times [2024-10-18 21:54:39,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:54:39,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:54:39,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:54:39,877 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:54:39,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:54:43,723 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:54:43,723 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 550 treesize of output 502 [2024-10-18 21:54:43,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1692025669, now seen corresponding path program 1 times [2024-10-18 21:54:43,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:54:43,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:54:43,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:54:43,808 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:54:43,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:54:46,595 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:54:46,595 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 514 treesize of output 466 [2024-10-18 21:54:46,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1171192714, now seen corresponding path program 1 times [2024-10-18 21:54:46,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:54:46,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:54:46,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:54:46,671 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:54:46,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:54:50,954 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:54:50,954 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 1038 treesize of output 942 [2024-10-18 21:54:51,005 INFO L85 PathProgramCache]: Analyzing trace with hash -396106941, now seen corresponding path program 1 times [2024-10-18 21:54:51,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:54:51,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:54:51,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:54:51,054 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:54:51,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:54:54,160 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:54:54,160 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 270 treesize of output 246 [2024-10-18 21:54:54,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1134027674, now seen corresponding path program 1 times [2024-10-18 21:54:54,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:54:54,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:54:54,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:54:54,259 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:54:54,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:54:59,169 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:54:59,170 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 568 treesize of output 520 [2024-10-18 21:55:01,193 INFO L85 PathProgramCache]: Analyzing trace with hash 71207012, now seen corresponding path program 1 times [2024-10-18 21:55:01,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:55:01,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:55:01,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:55:01,421 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:55:01,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:55:03,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:55:03,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable272,SelfDestructingSolverStorable273,SelfDestructingSolverStorable263,SelfDestructingSolverStorable274,SelfDestructingSolverStorable264,SelfDestructingSolverStorable275,SelfDestructingSolverStorable280,SelfDestructingSolverStorable270,SelfDestructingSolverStorable281,SelfDestructingSolverStorable271,SelfDestructingSolverStorable282,SelfDestructingSolverStorable269,SelfDestructingSolverStorable265,SelfDestructingSolverStorable276,SelfDestructingSolverStorable266,SelfDestructingSolverStorable277,SelfDestructingSolverStorable267,SelfDestructingSolverStorable278,SelfDestructingSolverStorable268,SelfDestructingSolverStorable279 [2024-10-18 21:55:03,944 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 21:55:03,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:55:03,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1765425663, now seen corresponding path program 1 times [2024-10-18 21:55:03,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 21:55:03,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211994052] [2024-10-18 21:55:03,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:55:03,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:55:04,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:55:04,005 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:55:04,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:55:04,099 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-18 21:55:04,099 INFO L332 BasicCegarLoop]: Counterexample is feasible [2024-10-18 21:55:04,099 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2024-10-18 21:55:04,099 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-10-18 21:55:04,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable283 [2024-10-18 21:55:04,100 INFO L414 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-18 21:55:04,100 WARN L239 ceAbstractionStarter]: 20 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-18 21:55:04,100 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 21 thread instances. [2024-10-18 21:55:04,159 INFO L143 ThreadInstanceAdder]: Constructed 21 joinOtherThreadTransitions. [2024-10-18 21:55:04,163 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-18 21:55:04,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-18 21:55:04,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 21:55:04,165 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-18 21:55:04,167 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (23)] Waiting until timeout for monitored process [2024-10-18 21:55:04,237 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-18 21:55:04,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:55:04,237 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-18 21:55:04,238 INFO L333 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, 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;@499ab41a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=DFS, mConComCheckerCriterion=DEFAULT, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=true, mConComCheckerCriterionLimit=5, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-10-18 21:55:04,238 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-18 21:55:20,380 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 21:55:20,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:55:20,380 INFO L85 PathProgramCache]: Analyzing trace with hash 2004890549, now seen corresponding path program 1 times [2024-10-18 21:55:20,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 21:55:20,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117883628] [2024-10-18 21:55:20,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:55:20,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:55:20,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:55:20,441 INFO L134 CoverageAnalysis]: Checked inductivity of 672 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked. [2024-10-18 21:55:20,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 21:55:20,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117883628] [2024-10-18 21:55:20,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117883628] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 21:55:20,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 21:55:20,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-18 21:55:20,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209418504] [2024-10-18 21:55:20,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 21:55:20,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-18 21:55:20,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 21:55:20,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-18 21:55:20,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-18 21:55:20,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:55:20,443 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 21:55:20,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 118.5) internal successors, (237), 2 states have internal predecessors, (237), 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) [2024-10-18 21:55:20,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:55:21,392 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 262 treesize of output 238 [2024-10-18 21:55:21,441 INFO L85 PathProgramCache]: Analyzing trace with hash -364384380, now seen corresponding path program 1 times [2024-10-18 21:55:21,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:55:21,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:55:21,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:55:21,459 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:55:21,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:55:23,570 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:55:23,570 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 550 treesize of output 502 [2024-10-18 21:55:23,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1125318770, now seen corresponding path program 1 times [2024-10-18 21:55:23,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:55:23,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:55:23,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:55:23,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:55:23,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:55:23,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:55:23,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:55:23,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:55:23,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-18 21:55:23,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-18 21:55:23,806 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 1030 treesize of output 934 [2024-10-18 21:55:23,831 INFO L85 PathProgramCache]: Analyzing trace with hash -364384054, now seen corresponding path program 1 times [2024-10-18 21:55:23,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:55:23,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:55:23,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:55:23,850 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:55:23,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:55:24,033 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:55:24,033 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 288 treesize of output 264 [2024-10-18 21:55:24,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1028424596, now seen corresponding path program 1 times [2024-10-18 21:55:24,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:55:24,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:55:24,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:55:24,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:55:24,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:55:24,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:55:24,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:55:24,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:55:24,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-18 21:55:24,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-10-18 21:55:24,368 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:55:24,368 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 288 treesize of output 264 [2024-10-18 21:55:24,414 INFO L85 PathProgramCache]: Analyzing trace with hash -364384034, now seen corresponding path program 1 times [2024-10-18 21:55:24,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:55:24,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:55:24,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:55:24,439 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:55:24,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:55:24,615 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 262 treesize of output 238 [2024-10-18 21:55:24,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1318797669, now seen corresponding path program 1 times [2024-10-18 21:55:24,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:55:24,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:55:24,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:55:24,669 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:55:24,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:55:26,013 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:55:26,013 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 514 treesize of output 466 [2024-10-18 21:55:26,039 INFO L85 PathProgramCache]: Analyzing trace with hash 391999881, now seen corresponding path program 1 times [2024-10-18 21:55:26,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:55:26,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:55:26,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:55:26,065 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:55:26,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:55:27,760 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:55:27,761 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 568 treesize of output 520 [2024-10-18 21:55:27,788 INFO L85 PathProgramCache]: Analyzing trace with hash 877020383, now seen corresponding path program 1 times [2024-10-18 21:55:27,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:55:27,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:55:27,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:55:27,815 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:55:27,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:55:30,481 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:55:30,481 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 1038 treesize of output 942 [2024-10-18 21:55:30,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1520413618, now seen corresponding path program 1 times [2024-10-18 21:55:30,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:55:30,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:55:30,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:55:30,552 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:55:30,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:55:32,559 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:55:32,559 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 270 treesize of output 246 [2024-10-18 21:55:32,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1353584037, now seen corresponding path program 1 times [2024-10-18 21:55:32,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:55:32,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:55:32,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:55:32,621 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:55:32,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:55:35,918 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:55:35,919 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 550 treesize of output 502 [2024-10-18 21:55:35,978 INFO L85 PathProgramCache]: Analyzing trace with hash 749527813, now seen corresponding path program 1 times [2024-10-18 21:55:35,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:55:35,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:55:36,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:55:36,019 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:55:36,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:55:38,350 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:55:38,350 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 270 treesize of output 246 [2024-10-18 21:55:38,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1449352522, now seen corresponding path program 1 times [2024-10-18 21:55:38,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:55:38,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:55:38,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:55:38,414 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:55:38,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:55:42,374 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:55:42,374 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 568 treesize of output 520 [2024-10-18 21:55:42,403 INFO L85 PathProgramCache]: Analyzing trace with hash 2118483267, now seen corresponding path program 1 times [2024-10-18 21:55:42,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:55:42,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:55:42,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:55:42,446 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:55:42,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:55:45,066 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:55:45,066 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 288 treesize of output 264 [2024-10-18 21:55:45,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1884874356, now seen corresponding path program 1 times [2024-10-18 21:55:45,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:55:45,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:55:45,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:55:45,142 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:55:45,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:55:49,610 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:55:49,610 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 1038 treesize of output 942 [2024-10-18 21:55:49,640 INFO L85 PathProgramCache]: Analyzing trace with hash 708005467, now seen corresponding path program 1 times [2024-10-18 21:55:49,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:55:49,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:55:49,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:55:49,689 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:55:49,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:55:52,621 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 542 treesize of output 494 [2024-10-18 21:55:52,642 INFO L85 PathProgramCache]: Analyzing trace with hash -2020333214, now seen corresponding path program 1 times [2024-10-18 21:55:52,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:55:52,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:55:52,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:55:52,694 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:55:52,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:55:57,771 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:55:57,771 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 514 treesize of output 466 [2024-10-18 21:55:57,795 INFO L85 PathProgramCache]: Analyzing trace with hash -212270451, now seen corresponding path program 1 times [2024-10-18 21:55:57,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:55:57,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:55:57,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:55:57,853 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:55:57,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:56:01,129 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:56:01,130 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 1038 treesize of output 942 [2024-10-18 21:56:01,201 INFO L85 PathProgramCache]: Analyzing trace with hash -82323883, now seen corresponding path program 1 times [2024-10-18 21:56:01,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:56:01,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:56:01,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:56:01,438 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:56:01,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:56:03,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:56:03,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable294,SelfDestructingSolverStorable284,SelfDestructingSolverStorable295,SelfDestructingSolverStorable285,SelfDestructingSolverStorable296,SelfDestructingSolverStorable286,SelfDestructingSolverStorable297,SelfDestructingSolverStorable290,SelfDestructingSolverStorable291,SelfDestructingSolverStorable292,SelfDestructingSolverStorable293,SelfDestructingSolverStorable302,SelfDestructingSolverStorable303,SelfDestructingSolverStorable304,SelfDestructingSolverStorable287,SelfDestructingSolverStorable298,SelfDestructingSolverStorable288,SelfDestructingSolverStorable299,SelfDestructingSolverStorable289,SelfDestructingSolverStorable300,SelfDestructingSolverStorable301 [2024-10-18 21:56:03,926 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 21:56:03,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:56:03,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1641937571, now seen corresponding path program 1 times [2024-10-18 21:56:03,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 21:56:03,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746426203] [2024-10-18 21:56:03,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:56:03,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:56:03,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:56:03,991 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:56:04,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:56:04,098 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-18 21:56:04,098 INFO L332 BasicCegarLoop]: Counterexample is feasible [2024-10-18 21:56:04,099 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2024-10-18 21:56:04,099 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-10-18 21:56:04,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable305 [2024-10-18 21:56:04,100 INFO L414 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-18 21:56:04,100 WARN L239 ceAbstractionStarter]: 21 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-18 21:56:04,100 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 22 thread instances. [2024-10-18 21:56:04,165 INFO L143 ThreadInstanceAdder]: Constructed 22 joinOtherThreadTransitions. [2024-10-18 21:56:04,169 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-18 21:56:04,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-18 21:56:04,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 21:56:04,171 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-18 21:56:04,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (24)] Waiting until timeout for monitored process [2024-10-18 21:56:04,257 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-18 21:56:04,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:56:04,259 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-18 21:56:04,259 INFO L333 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, 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;@499ab41a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=DFS, mConComCheckerCriterion=DEFAULT, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=true, mConComCheckerCriterionLimit=5, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-10-18 21:56:04,259 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-18 21:56:21,931 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 21:56:21,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:56:21,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1436853342, now seen corresponding path program 1 times [2024-10-18 21:56:21,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 21:56:21,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058038486] [2024-10-18 21:56:21,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:56:21,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:56:21,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:56:22,000 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 672 trivial. 0 not checked. [2024-10-18 21:56:22,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 21:56:22,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058038486] [2024-10-18 21:56:22,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058038486] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 21:56:22,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 21:56:22,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-18 21:56:22,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882598407] [2024-10-18 21:56:22,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 21:56:22,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-18 21:56:22,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 21:56:22,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-18 21:56:22,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-18 21:56:22,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:56:22,002 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 21:56:22,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 124.0) internal successors, (248), 2 states have internal predecessors, (248), 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) [2024-10-18 21:56:22,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:56:23,122 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 542 treesize of output 494 [2024-10-18 21:56:23,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1951390397, now seen corresponding path program 1 times [2024-10-18 21:56:23,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:56:23,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:56:23,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:56:23,182 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:56:23,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:56:25,198 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:56:25,199 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 270 treesize of output 246 [2024-10-18 21:56:25,224 INFO L85 PathProgramCache]: Analyzing trace with hash -2011909745, now seen corresponding path program 1 times [2024-10-18 21:56:25,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:56:25,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:56:25,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:56:25,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:56:25,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:56:25,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:56:25,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:56:25,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:56:25,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-18 21:56:25,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-18 21:56:25,415 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 1030 treesize of output 934 [2024-10-18 21:56:25,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1951390737, now seen corresponding path program 1 times [2024-10-18 21:56:25,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:56:25,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:56:25,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:56:25,460 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:56:25,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:56:25,644 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:56:25,645 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 1038 treesize of output 942 [2024-10-18 21:56:25,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1716269235, now seen corresponding path program 1 times [2024-10-18 21:56:25,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:56:25,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:56:25,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:56:25,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:56:25,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:56:25,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:56:25,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:56:25,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:56:25,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-18 21:56:25,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-10-18 21:56:25,930 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:56:25,930 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 568 treesize of output 520 [2024-10-18 21:56:25,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1951390757, now seen corresponding path program 1 times [2024-10-18 21:56:25,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:56:25,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:56:25,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:56:25,976 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:56:25,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:56:26,131 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:56:26,131 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 1038 treesize of output 942 [2024-10-18 21:56:26,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1047891324, now seen corresponding path program 1 times [2024-10-18 21:56:26,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:56:26,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:56:26,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:56:26,181 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:56:26,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:56:27,512 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:56:27,512 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 1038 treesize of output 942 [2024-10-18 21:56:27,554 INFO L85 PathProgramCache]: Analyzing trace with hash 893961601, now seen corresponding path program 1 times [2024-10-18 21:56:27,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:56:27,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:56:27,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:56:27,579 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:56:27,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:56:29,476 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 262 treesize of output 238 [2024-10-18 21:56:29,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1908162410, now seen corresponding path program 1 times [2024-10-18 21:56:29,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:56:29,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:56:29,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:56:29,534 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:56:29,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:56:32,078 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:56:32,078 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 288 treesize of output 264 [2024-10-18 21:56:32,109 INFO L85 PathProgramCache]: Analyzing trace with hash 951158821, now seen corresponding path program 1 times [2024-10-18 21:56:32,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:56:32,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:56:32,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:56:32,141 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:56:32,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:56:34,181 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 542 treesize of output 494 [2024-10-18 21:56:34,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1034172227, now seen corresponding path program 1 times [2024-10-18 21:56:34,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:56:34,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:56:34,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:56:34,242 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:56:34,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:56:37,585 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:56:37,586 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 1038 treesize of output 942 [2024-10-18 21:56:37,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1058980315, now seen corresponding path program 1 times [2024-10-18 21:56:37,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:56:37,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:56:37,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:56:37,664 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:56:37,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:56:40,058 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:56:40,059 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 270 treesize of output 246 [2024-10-18 21:56:40,082 INFO L85 PathProgramCache]: Analyzing trace with hash 551369777, now seen corresponding path program 1 times [2024-10-18 21:56:40,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:56:40,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:56:40,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:56:40,122 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:56:40,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:56:44,052 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 262 treesize of output 238 [2024-10-18 21:56:44,084 INFO L85 PathProgramCache]: Analyzing trace with hash -922241093, now seen corresponding path program 1 times [2024-10-18 21:56:44,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:56:44,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:56:44,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:56:44,128 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:56:44,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:56:46,806 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:56:46,806 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 514 treesize of output 466 [2024-10-18 21:56:46,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1684762, now seen corresponding path program 1 times [2024-10-18 21:56:46,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:56:46,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:56:46,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:56:46,878 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:56:46,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:56:51,389 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:56:51,389 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 270 treesize of output 246 [2024-10-18 21:56:51,427 INFO L85 PathProgramCache]: Analyzing trace with hash 101318065, now seen corresponding path program 1 times [2024-10-18 21:56:51,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:56:51,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:56:51,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:56:51,486 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:56:51,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:56:54,505 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 542 treesize of output 494 [2024-10-18 21:56:56,526 INFO L85 PathProgramCache]: Analyzing trace with hash -207273488, now seen corresponding path program 1 times [2024-10-18 21:56:56,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:56:56,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:56:56,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:56:56,585 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:56:56,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:57:01,700 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:57:01,700 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 532 treesize of output 484 [2024-10-18 21:57:01,726 INFO L85 PathProgramCache]: Analyzing trace with hash -986016100, now seen corresponding path program 1 times [2024-10-18 21:57:01,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:57:01,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:57:01,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:57:01,794 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:57:01,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:57:05,326 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:57:05,327 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 568 treesize of output 520 [2024-10-18 21:57:05,354 INFO L85 PathProgramCache]: Analyzing trace with hash 627632365, now seen corresponding path program 1 times [2024-10-18 21:57:05,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:57:05,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:57:05,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:57:05,416 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:57:05,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:57:10,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:57:10,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable306,SelfDestructingSolverStorable317,SelfDestructingSolverStorable307,SelfDestructingSolverStorable318,SelfDestructingSolverStorable308,SelfDestructingSolverStorable319,SelfDestructingSolverStorable309,SelfDestructingSolverStorable313,SelfDestructingSolverStorable324,SelfDestructingSolverStorable314,SelfDestructingSolverStorable325,SelfDestructingSolverStorable315,SelfDestructingSolverStorable326,SelfDestructingSolverStorable316,SelfDestructingSolverStorable320,SelfDestructingSolverStorable310,SelfDestructingSolverStorable321,SelfDestructingSolverStorable311,SelfDestructingSolverStorable322,SelfDestructingSolverStorable312,SelfDestructingSolverStorable323 [2024-10-18 21:57:10,213 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 21:57:10,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:57:10,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1765139502, now seen corresponding path program 1 times [2024-10-18 21:57:10,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 21:57:10,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633021695] [2024-10-18 21:57:10,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:57:10,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:57:10,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:57:10,283 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:57:10,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:57:10,397 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-18 21:57:10,398 INFO L332 BasicCegarLoop]: Counterexample is feasible [2024-10-18 21:57:10,398 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2024-10-18 21:57:10,398 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-10-18 21:57:10,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable327 [2024-10-18 21:57:10,399 INFO L414 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-18 21:57:10,399 WARN L239 ceAbstractionStarter]: 22 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-18 21:57:10,399 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 23 thread instances. [2024-10-18 21:57:10,597 INFO L143 ThreadInstanceAdder]: Constructed 23 joinOtherThreadTransitions. [2024-10-18 21:57:10,601 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-18 21:57:10,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-18 21:57:10,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 21:57:10,603 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) [2024-10-18 21:57:10,614 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 [2024-10-18 21:57:10,696 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-18 21:57:10,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:57:10,699 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-18 21:57:10,699 INFO L333 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, 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;@499ab41a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=DFS, mConComCheckerCriterion=DEFAULT, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=true, mConComCheckerCriterionLimit=5, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-10-18 21:57:10,699 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-18 21:57:29,773 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 21:57:29,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:57:29,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1358340506, now seen corresponding path program 1 times [2024-10-18 21:57:29,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 21:57:29,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626989281] [2024-10-18 21:57:29,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:57:29,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:57:29,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:57:29,842 INFO L134 CoverageAnalysis]: Checked inductivity of 805 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 737 trivial. 0 not checked. [2024-10-18 21:57:29,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 21:57:29,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626989281] [2024-10-18 21:57:29,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626989281] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 21:57:29,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 21:57:29,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-18 21:57:29,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770648085] [2024-10-18 21:57:29,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 21:57:29,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-18 21:57:29,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 21:57:29,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-18 21:57:29,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-18 21:57:29,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:57:29,844 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 21:57:29,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 129.5) internal successors, (259), 2 states have internal predecessors, (259), 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) [2024-10-18 21:57:29,844 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:57:30,905 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 262 treesize of output 238 [2024-10-18 21:57:30,934 INFO L85 PathProgramCache]: Analyzing trace with hash -328745633, now seen corresponding path program 1 times [2024-10-18 21:57:30,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:57:30,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:57:30,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:57:30,954 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:57:30,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:57:32,960 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:57:32,960 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 270 treesize of output 246 [2024-10-18 21:57:33,017 INFO L85 PathProgramCache]: Analyzing trace with hash -523238429, now seen corresponding path program 1 times [2024-10-18 21:57:33,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:57:33,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:57:33,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:57:33,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:57:33,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:57:33,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:57:33,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:57:33,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:57:33,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-18 21:57:33,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-18 21:57:33,209 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 1030 treesize of output 934 [2024-10-18 21:57:33,241 INFO L85 PathProgramCache]: Analyzing trace with hash -328745279, now seen corresponding path program 1 times [2024-10-18 21:57:33,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:57:33,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:57:33,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:57:33,261 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:57:33,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:57:33,447 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:57:33,447 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 1038 treesize of output 942 [2024-10-18 21:57:33,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1054261375, now seen corresponding path program 1 times [2024-10-18 21:57:33,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:57:33,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:57:33,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:57:33,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:57:33,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:57:33,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:57:33,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:57:33,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:57:33,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-18 21:57:33,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-10-18 21:57:33,860 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:57:33,861 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 288 treesize of output 264 [2024-10-18 21:57:33,909 INFO L85 PathProgramCache]: Analyzing trace with hash -328745259, now seen corresponding path program 1 times [2024-10-18 21:57:33,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:57:33,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:57:33,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:57:33,929 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:57:33,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:57:34,086 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:57:34,086 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 550 treesize of output 502 [2024-10-18 21:57:34,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1439363504, now seen corresponding path program 1 times [2024-10-18 21:57:34,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:57:34,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:57:34,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:57:34,164 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:57:34,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:57:35,520 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:57:35,520 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 568 treesize of output 520 [2024-10-18 21:57:35,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1500916390, now seen corresponding path program 1 times [2024-10-18 21:57:35,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:57:35,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:57:35,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:57:35,595 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:57:35,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:57:37,396 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:57:37,397 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 270 treesize of output 246 [2024-10-18 21:57:37,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1451468365, now seen corresponding path program 1 times [2024-10-18 21:57:37,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:57:37,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:57:37,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:57:37,461 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:57:37,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:57:40,174 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:57:40,175 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 1056 treesize of output 960 [2024-10-18 21:57:40,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1615874309, now seen corresponding path program 1 times [2024-10-18 21:57:40,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:57:40,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:57:40,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:57:40,241 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:57:40,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:57:42,416 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:57:42,416 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 514 treesize of output 466 [2024-10-18 21:57:42,455 INFO L85 PathProgramCache]: Analyzing trace with hash -2038660339, now seen corresponding path program 1 times [2024-10-18 21:57:42,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:57:42,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:57:42,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:57:42,602 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:57:42,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:57:45,805 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 506 treesize of output 458 [2024-10-18 21:57:47,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1962004386, now seen corresponding path program 1 times [2024-10-18 21:57:47,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:57:47,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:57:47,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:57:47,865 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:57:47,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:57:50,405 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:57:50,405 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 550 treesize of output 502 [2024-10-18 21:57:50,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1699856221, now seen corresponding path program 1 times [2024-10-18 21:57:50,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:57:50,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:57:50,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:57:50,469 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:57:50,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:57:54,361 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:57:54,361 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 532 treesize of output 484 [2024-10-18 21:57:54,392 INFO L85 PathProgramCache]: Analyzing trace with hash 879396206, now seen corresponding path program 1 times [2024-10-18 21:57:54,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:57:54,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:57:54,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:57:54,459 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:57:54,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:57:57,444 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 542 treesize of output 494 [2024-10-18 21:57:57,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1567502844, now seen corresponding path program 1 times [2024-10-18 21:57:57,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:57:57,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:57:57,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:57:57,515 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:57:57,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:58:02,028 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:58:02,029 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 1038 treesize of output 942 [2024-10-18 21:58:02,055 INFO L85 PathProgramCache]: Analyzing trace with hash 196767020, now seen corresponding path program 1 times [2024-10-18 21:58:02,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:58:02,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:58:02,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:58:02,107 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:58:02,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:58:05,314 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:58:05,314 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 270 treesize of output 246 [2024-10-18 21:58:05,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1912059542, now seen corresponding path program 1 times [2024-10-18 21:58:05,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:58:05,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:58:05,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:58:05,413 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:58:05,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:58:10,542 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:58:10,542 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 1056 treesize of output 960 [2024-10-18 21:58:12,572 INFO L85 PathProgramCache]: Analyzing trace with hash -624105165, now seen corresponding path program 1 times [2024-10-18 21:58:12,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:58:12,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:58:12,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:58:12,635 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:58:12,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:58:15,999 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:58:16,000 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 568 treesize of output 520 [2024-10-18 21:58:16,025 INFO L85 PathProgramCache]: Analyzing trace with hash -2017165796, now seen corresponding path program 1 times [2024-10-18 21:58:16,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:58:16,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:58:16,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:58:16,096 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:58:16,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:58:21,917 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:58:21,917 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 568 treesize of output 520 [2024-10-18 21:58:21,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1077027855, now seen corresponding path program 1 times [2024-10-18 21:58:21,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:58:21,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:58:22,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:58:22,011 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:58:22,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:58:25,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:58:25,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable340,SelfDestructingSolverStorable330,SelfDestructingSolverStorable341,SelfDestructingSolverStorable328,SelfDestructingSolverStorable339,SelfDestructingSolverStorable329,SelfDestructingSolverStorable335,SelfDestructingSolverStorable346,SelfDestructingSolverStorable336,SelfDestructingSolverStorable347,SelfDestructingSolverStorable337,SelfDestructingSolverStorable348,SelfDestructingSolverStorable338,SelfDestructingSolverStorable349,SelfDestructingSolverStorable331,SelfDestructingSolverStorable342,SelfDestructingSolverStorable332,SelfDestructingSolverStorable343,SelfDestructingSolverStorable333,SelfDestructingSolverStorable344,SelfDestructingSolverStorable334,SelfDestructingSolverStorable345 [2024-10-18 21:58:25,049 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 21:58:25,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:58:25,050 INFO L85 PathProgramCache]: Analyzing trace with hash -786743115, now seen corresponding path program 1 times [2024-10-18 21:58:25,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 21:58:25,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923400828] [2024-10-18 21:58:25,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:58:25,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:58:25,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:58:25,121 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:58:25,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:58:25,246 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-18 21:58:25,246 INFO L332 BasicCegarLoop]: Counterexample is feasible [2024-10-18 21:58:25,246 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2024-10-18 21:58:25,246 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-10-18 21:58:25,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable350 [2024-10-18 21:58:25,247 INFO L414 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-18 21:58:25,247 WARN L239 ceAbstractionStarter]: 23 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-18 21:58:25,247 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 24 thread instances. [2024-10-18 21:58:25,338 INFO L143 ThreadInstanceAdder]: Constructed 24 joinOtherThreadTransitions. [2024-10-18 21:58:25,343 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-18 21:58:25,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-18 21:58:25,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 21:58:25,346 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-18 21:58:25,348 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (26)] Waiting until timeout for monitored process [2024-10-18 21:58:25,432 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-18 21:58:25,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:58:25,433 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-18 21:58:25,433 INFO L333 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, 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;@499ab41a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=DFS, mConComCheckerCriterion=DEFAULT, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=true, mConComCheckerCriterionLimit=5, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-10-18 21:58:25,434 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-18 21:58:46,261 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 21:58:46,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:58:46,261 INFO L85 PathProgramCache]: Analyzing trace with hash -744552697, now seen corresponding path program 1 times [2024-10-18 21:58:46,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 21:58:46,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968365035] [2024-10-18 21:58:46,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:58:46,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:58:46,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:58:46,356 INFO L134 CoverageAnalysis]: Checked inductivity of 876 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 805 trivial. 0 not checked. [2024-10-18 21:58:46,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 21:58:46,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968365035] [2024-10-18 21:58:46,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968365035] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 21:58:46,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 21:58:46,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-18 21:58:46,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818400385] [2024-10-18 21:58:46,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 21:58:46,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-18 21:58:46,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 21:58:46,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-18 21:58:46,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-18 21:58:46,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:58:46,358 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 21:58:46,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 135.0) internal successors, (270), 2 states have internal predecessors, (270), 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) [2024-10-18 21:58:46,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:58:47,481 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 542 treesize of output 494 [2024-10-18 21:58:47,505 INFO L85 PathProgramCache]: Analyzing trace with hash -1155278852, now seen corresponding path program 1 times [2024-10-18 21:58:47,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:58:47,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:58:47,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:58:47,676 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:58:47,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:58:49,791 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:58:49,791 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 514 treesize of output 466 [2024-10-18 21:58:49,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1925332867, now seen corresponding path program 1 times [2024-10-18 21:58:49,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:58:49,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:58:49,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:58:49,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:58:49,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:58:49,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:58:49,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:58:49,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:58:49,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-18 21:58:49,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-18 21:58:50,022 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:58:50,022 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 532 treesize of output 484 [2024-10-18 21:58:50,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1155278484, now seen corresponding path program 1 times [2024-10-18 21:58:50,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:58:50,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:58:50,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:58:50,072 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:58:50,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:58:50,263 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:58:50,263 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 514 treesize of output 466 [2024-10-18 21:58:50,311 INFO L85 PathProgramCache]: Analyzing trace with hash 143181604, now seen corresponding path program 1 times [2024-10-18 21:58:50,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:58:50,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:58:50,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:58:50,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:58:50,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:58:50,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:58:50,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 21:58:50,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 21:58:50,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-18 21:58:50,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-10-18 21:58:50,582 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:58:50,582 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 1056 treesize of output 960 [2024-10-18 21:58:50,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1155278464, now seen corresponding path program 1 times [2024-10-18 21:58:50,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:58:50,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:58:50,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:58:50,646 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:58:50,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:58:50,806 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:58:50,806 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 550 treesize of output 502 [2024-10-18 21:58:50,848 INFO L85 PathProgramCache]: Analyzing trace with hash 929550963, now seen corresponding path program 1 times [2024-10-18 21:58:50,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:58:50,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:58:50,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:58:50,873 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:58:50,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:58:52,234 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:58:52,234 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 1056 treesize of output 960 [2024-10-18 21:58:52,268 INFO L85 PathProgramCache]: Analyzing trace with hash 990834241, now seen corresponding path program 1 times [2024-10-18 21:58:52,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:58:52,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:58:52,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:58:52,298 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:58:52,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:58:54,325 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:58:54,326 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 270 treesize of output 246 [2024-10-18 21:58:54,367 INFO L85 PathProgramCache]: Analyzing trace with hash -900318471, now seen corresponding path program 1 times [2024-10-18 21:58:54,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:58:54,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:58:54,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:58:54,399 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:58:54,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:58:57,027 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 542 treesize of output 494 [2024-10-18 21:58:57,050 INFO L85 PathProgramCache]: Analyzing trace with hash 490732745, now seen corresponding path program 1 times [2024-10-18 21:58:57,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:58:57,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:58:57,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:58:57,088 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:58:57,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:58:59,453 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:58:59,453 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 270 treesize of output 246 [2024-10-18 21:58:59,507 INFO L85 PathProgramCache]: Analyzing trace with hash 353472684, now seen corresponding path program 1 times [2024-10-18 21:58:59,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:58:59,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:58:59,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:58:59,544 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:58:59,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:59:02,811 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:59:02,812 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 1038 treesize of output 942 [2024-10-18 21:59:04,843 INFO L85 PathProgramCache]: Analyzing trace with hash 905508610, now seen corresponding path program 1 times [2024-10-18 21:59:04,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:59:04,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:59:04,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:59:04,884 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:59:04,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:59:07,493 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:59:07,493 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 270 treesize of output 246 [2024-10-18 21:59:07,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1529075976, now seen corresponding path program 1 times [2024-10-18 21:59:07,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:59:07,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:59:07,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:59:07,565 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:59:07,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:59:11,403 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:59:11,404 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 550 treesize of output 502 [2024-10-18 21:59:11,431 INFO L85 PathProgramCache]: Analyzing trace with hash 999733386, now seen corresponding path program 1 times [2024-10-18 21:59:11,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:59:11,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:59:11,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:59:11,481 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:59:11,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:59:14,431 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:59:14,432 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 288 treesize of output 264 [2024-10-18 21:59:14,463 INFO L85 PathProgramCache]: Analyzing trace with hash 418225369, now seen corresponding path program 1 times [2024-10-18 21:59:14,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:59:14,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:59:14,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:59:14,514 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:59:14,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:59:18,965 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:59:18,965 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 288 treesize of output 264 [2024-10-18 21:59:18,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1306938706, now seen corresponding path program 1 times [2024-10-18 21:59:18,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:59:18,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:59:19,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:59:19,215 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:59:19,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:59:22,345 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:59:22,346 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 1038 treesize of output 942 [2024-10-18 21:59:22,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1095037384, now seen corresponding path program 1 times [2024-10-18 21:59:22,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:59:22,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:59:22,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:59:22,438 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:59:22,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:59:27,686 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:59:27,686 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 568 treesize of output 520 [2024-10-18 21:59:27,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1457863296, now seen corresponding path program 1 times [2024-10-18 21:59:27,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:59:27,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:59:27,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:59:27,778 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:59:27,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:59:31,225 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:59:31,225 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 270 treesize of output 246 [2024-10-18 21:59:31,251 INFO L85 PathProgramCache]: Analyzing trace with hash -647018363, now seen corresponding path program 1 times [2024-10-18 21:59:31,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:59:31,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:59:31,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:59:31,316 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:59:31,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:59:37,209 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-10-18 21:59:37,209 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 1056 treesize of output 960 [2024-10-18 21:59:37,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1185402008, now seen corresponding path program 1 times [2024-10-18 21:59:37,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:59:37,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:59:37,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:59:37,316 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:59:37,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:59:41,260 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 1030 treesize of output 934 [2024-10-18 21:59:41,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1799457214, now seen corresponding path program 1 times [2024-10-18 21:59:41,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:59:41,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:59:41,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:59:41,365 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:59:41,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:59:44,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 21:59:44,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable360,SelfDestructingSolverStorable371,SelfDestructingSolverStorable361,SelfDestructingSolverStorable372,SelfDestructingSolverStorable351,SelfDestructingSolverStorable362,SelfDestructingSolverStorable373,SelfDestructingSolverStorable352,SelfDestructingSolverStorable363,SelfDestructingSolverStorable370,SelfDestructingSolverStorable357,SelfDestructingSolverStorable368,SelfDestructingSolverStorable358,SelfDestructingSolverStorable369,SelfDestructingSolverStorable359,SelfDestructingSolverStorable353,SelfDestructingSolverStorable364,SelfDestructingSolverStorable354,SelfDestructingSolverStorable365,SelfDestructingSolverStorable355,SelfDestructingSolverStorable366,SelfDestructingSolverStorable356,SelfDestructingSolverStorable367 [2024-10-18 21:59:44,228 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 21:59:44,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:59:44,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1507964818, now seen corresponding path program 1 times [2024-10-18 21:59:44,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 21:59:44,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352785849] [2024-10-18 21:59:44,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 21:59:44,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 21:59:44,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:59:44,306 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 21:59:44,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 21:59:44,447 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-18 21:59:44,447 INFO L332 BasicCegarLoop]: Counterexample is feasible [2024-10-18 21:59:44,448 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2024-10-18 21:59:44,448 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-10-18 21:59:44,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable374 [2024-10-18 21:59:44,449 INFO L414 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-18 21:59:44,449 WARN L239 ceAbstractionStarter]: 24 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-18 21:59:44,449 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 25 thread instances. [2024-10-18 21:59:44,518 INFO L143 ThreadInstanceAdder]: Constructed 25 joinOtherThreadTransitions. [2024-10-18 21:59:44,522 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-18 21:59:44,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-18 21:59:44,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 21:59:44,525 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-18 21:59:44,526 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (27)] Waiting until timeout for monitored process [2024-10-18 21:59:44,618 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-18 21:59:44,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 21:59:44,618 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-18 21:59:44,618 INFO L333 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, 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;@499ab41a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=DFS, mConComCheckerCriterion=DEFAULT, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=true, mConComCheckerCriterionLimit=5, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-10-18 21:59:44,618 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. Killed by 15