./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-mult-4.wvr.c --full-output --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking COUNTEREXAMPLE --traceabstraction.criterion.for.conditional.commutativity.checking DEFAULT --traceabstraction.tracecheck.mode.for.conditional.commutativity SYMBOLIC_RELATION -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/weaver/popl20-mult-4.wvr.c -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 b81cf2d80bc77dedaac253250be737ceaa09f6e691f026864fe6fd5cb48c2489 --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking COUNTEREXAMPLE --traceabstraction.criterion.for.conditional.commutativity.checking DEFAULT --traceabstraction.tracecheck.mode.for.conditional.commutativity SYMBOLIC_RELATION -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 [2024-10-17 09:28:35,730 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-17 09:28:35,813 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-10-17 09:28:35,817 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-17 09:28:35,818 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-17 09:28:35,850 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-17 09:28:35,851 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-17 09:28:35,851 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-17 09:28:35,852 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-17 09:28:35,852 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-17 09:28:35,853 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-17 09:28:35,853 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-17 09:28:35,853 INFO L153 SettingsManager]: * Use SBE=true [2024-10-17 09:28:35,854 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-17 09:28:35,854 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-17 09:28:35,855 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-17 09:28:35,855 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-17 09:28:35,858 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-17 09:28:35,858 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-17 09:28:35,859 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-17 09:28:35,859 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-17 09:28:35,860 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-17 09:28:35,861 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-17 09:28:35,861 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-17 09:28:35,861 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-17 09:28:35,861 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-17 09:28:35,861 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-17 09:28:35,862 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-17 09:28:35,862 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-17 09:28:35,862 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-17 09:28:35,862 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-17 09:28:35,862 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-17 09:28:35,863 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-17 09:28:35,863 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-10-17 09:28:35,863 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-17 09:28:35,863 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-17 09:28:35,863 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-17 09:28:35,864 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-17 09:28:35,864 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-17 09:28:35,864 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-17 09:28:35,867 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-17 09:28:35,867 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 -> b81cf2d80bc77dedaac253250be737ceaa09f6e691f026864fe6fd5cb48c2489 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 -> COUNTEREXAMPLE 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: TraceCheck mode for conditional commutativity -> SYMBOLIC_RELATION [2024-10-17 09:28:36,123 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-17 09:28:36,153 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-17 09:28:36,155 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-17 09:28:36,156 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-17 09:28:36,157 INFO L274 PluginConnector]: CDTParser initialized [2024-10-17 09:28:36,158 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-mult-4.wvr.c [2024-10-17 09:28:37,748 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-17 09:28:37,965 INFO L384 CDTParser]: Found 1 translation units. [2024-10-17 09:28:37,965 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-mult-4.wvr.c [2024-10-17 09:28:37,976 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/eb7c822ca/76739b8e0acd496798c2adcebab4a456/FLAG231d7effc [2024-10-17 09:28:37,991 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/eb7c822ca/76739b8e0acd496798c2adcebab4a456 [2024-10-17 09:28:37,993 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-17 09:28:37,994 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-17 09:28:37,995 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-17 09:28:37,996 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-17 09:28:38,001 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-17 09:28:38,003 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 09:28:37" (1/1) ... [2024-10-17 09:28:38,004 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c857c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 09:28:38, skipping insertion in model container [2024-10-17 09:28:38,004 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 09:28:37" (1/1) ... [2024-10-17 09:28:38,029 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-17 09:28:38,316 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-mult-4.wvr.c[2664,2677] [2024-10-17 09:28:38,330 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-17 09:28:38,355 INFO L200 MainTranslator]: Completed pre-run [2024-10-17 09:28:38,377 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-mult-4.wvr.c[2664,2677] [2024-10-17 09:28:38,377 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-17 09:28:38,392 INFO L204 MainTranslator]: Completed translation [2024-10-17 09:28:38,392 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 09:28:38 WrapperNode [2024-10-17 09:28:38,393 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-17 09:28:38,394 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-17 09:28:38,394 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-17 09:28:38,394 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-17 09:28:38,405 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 09:28:38" (1/1) ... [2024-10-17 09:28:38,412 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 09:28:38" (1/1) ... [2024-10-17 09:28:38,431 INFO L138 Inliner]: procedures = 22, calls = 22, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 98 [2024-10-17 09:28:38,431 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-17 09:28:38,432 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-17 09:28:38,432 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-17 09:28:38,432 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-17 09:28:38,443 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 09:28:38" (1/1) ... [2024-10-17 09:28:38,443 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 09:28:38" (1/1) ... [2024-10-17 09:28:38,446 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 09:28:38" (1/1) ... [2024-10-17 09:28:38,446 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 09:28:38" (1/1) ... [2024-10-17 09:28:38,452 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 09:28:38" (1/1) ... [2024-10-17 09:28:38,464 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 09:28:38" (1/1) ... [2024-10-17 09:28:38,466 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 09:28:38" (1/1) ... [2024-10-17 09:28:38,467 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 09:28:38" (1/1) ... [2024-10-17 09:28:38,472 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-17 09:28:38,473 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-17 09:28:38,474 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-17 09:28:38,474 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-17 09:28:38,475 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 09:28:38" (1/1) ... [2024-10-17 09:28:38,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-17 09:28:38,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 09:28:38,517 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) [2024-10-17 09:28:38,520 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 [2024-10-17 09:28:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-17 09:28:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-17 09:28:38,562 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-17 09:28:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-17 09:28:38,562 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-17 09:28:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-17 09:28:38,563 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-17 09:28:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-10-17 09:28:38,563 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-10-17 09:28:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-17 09:28:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-17 09:28:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-17 09:28:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-17 09:28:38,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-17 09:28:38,565 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-17 09:28:38,656 INFO L238 CfgBuilder]: Building ICFG [2024-10-17 09:28:38,658 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-17 09:28:38,888 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-17 09:28:38,889 INFO L287 CfgBuilder]: Performing block encoding [2024-10-17 09:28:39,036 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-17 09:28:39,036 INFO L314 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-17 09:28:39,037 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 09:28:39 BoogieIcfgContainer [2024-10-17 09:28:39,037 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-17 09:28:39,039 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-17 09:28:39,040 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-17 09:28:39,043 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-17 09:28:39,044 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 09:28:37" (1/3) ... [2024-10-17 09:28:39,044 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54bcb844 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 09:28:39, skipping insertion in model container [2024-10-17 09:28:39,045 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 09:28:38" (2/3) ... [2024-10-17 09:28:39,045 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54bcb844 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 09:28:39, skipping insertion in model container [2024-10-17 09:28:39,045 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 09:28:39" (3/3) ... [2024-10-17 09:28:39,046 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-mult-4.wvr.c [2024-10-17 09:28:39,066 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-17 09:28:39,066 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-17 09:28:39,066 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-17 09:28:39,155 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-17 09:28:39,201 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-17 09:28:39,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-17 09:28:39,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 09:28:39,204 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) [2024-10-17 09:28:39,206 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 [2024-10-17 09:28:39,311 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-17 09:28:39,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 09:28:39,337 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-17 09:28:39,346 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;@4c81c667, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=COUNTEREXAMPLE, mConComCheckerCriterion=DEFAULT, mConComCheckerTraceCheckMode=SYMBOLIC_RELATION, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-10-17 09:28:39,347 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-10-17 09:28:40,551 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-17 09:28:40,604 INFO L85 PathProgramCache]: Analyzing trace with hash 594699489, now seen corresponding path program 1 times [2024-10-17 09:28:40,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 09:28:40,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 09:28:40,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 09:28:41,661 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-17 09:28:41,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 09:28:41,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 09:28:41,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 09:28:42,119 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-17 09:28:42,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1894573668, now seen corresponding path program 1 times [2024-10-17 09:28:42,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 09:28:42,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 09:28:42,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 09:28:42,743 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-17 09:28:42,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 09:28:42,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 09:28:42,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 09:28:43,205 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-17 09:28:43,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1354789943, now seen corresponding path program 1 times [2024-10-17 09:28:43,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 09:28:43,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 09:28:43,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 09:28:43,816 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-17 09:28:43,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 09:28:43,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 09:28:43,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 09:28:44,310 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-17 09:28:44,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1153781462, now seen corresponding path program 1 times [2024-10-17 09:28:44,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 09:28:44,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 09:28:44,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-17 09:28:44,377 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-17 09:28:44,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-17 09:28:44,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1524197760, now seen corresponding path program 1 times [2024-10-17 09:28:44,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 09:28:44,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 09:28:44,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 09:28:44,895 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-17 09:28:44,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 09:28:44,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 09:28:44,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 09:28:45,172 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-17 09:28:45,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 09:28:45,174 INFO L85 PathProgramCache]: Analyzing trace with hash -73013975, now seen corresponding path program 1 times [2024-10-17 09:28:45,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 09:28:45,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612232274] [2024-10-17 09:28:45,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 09:28:45,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 09:28:45,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 09:28:45,651 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 90 proven. 107 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-17 09:28:45,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 09:28:45,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612232274] [2024-10-17 09:28:45,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612232274] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 09:28:45,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [256136887] [2024-10-17 09:28:45,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 09:28:45,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 09:28:45,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 09:28:45,674 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-17 09:28:45,676 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-17 09:28:45,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 09:28:45,794 INFO L255 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-17 09:28:45,798 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 09:28:46,252 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 90 proven. 113 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-17 09:28:46,253 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 09:28:46,762 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 90 proven. 113 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-17 09:28:46,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [256136887] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 09:28:46,763 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 09:28:46,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13, 13] total 28 [2024-10-17 09:28:46,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131214202] [2024-10-17 09:28:46,766 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 09:28:46,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-10-17 09:28:46,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 09:28:46,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-10-17 09:28:46,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=635, Unknown=0, NotChecked=0, Total=756 [2024-10-17 09:28:46,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 09:28:46,809 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 09:28:46,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.428571428571429) internal successors, (180), 28 states have internal predecessors, (180), 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) [2024-10-17 09:28:46,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 09:28:48,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-10-17 09:28:48,424 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-17 09:28:48,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,SelfDestructingSolverStorable3,3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2,SelfDestructingSolverStorable1,SelfDestructingSolverStorable8,SelfDestructingSolverStorable7,SelfDestructingSolverStorable6,SelfDestructingSolverStorable5,SelfDestructingSolverStorable9,SelfDestructingSolverStorable0 [2024-10-17 09:28:48,605 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-17 09:28:48,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1353993442, now seen corresponding path program 1 times [2024-10-17 09:28:48,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 09:28:48,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 09:28:48,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 09:28:49,013 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 80 proven. 72 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-10-17 09:28:49,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 09:28:49,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 09:28:49,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 09:28:49,364 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 80 proven. 72 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-10-17 09:28:49,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1213107299, now seen corresponding path program 1 times [2024-10-17 09:28:49,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 09:28:49,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 09:28:49,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 09:28:49,758 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 80 proven. 72 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-10-17 09:28:49,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 09:28:49,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 09:28:49,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 09:28:50,111 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 80 proven. 72 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-10-17 09:28:50,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1064337884, now seen corresponding path program 1 times [2024-10-17 09:28:50,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 09:28:50,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 09:28:50,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 09:28:50,494 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 80 proven. 72 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-10-17 09:28:50,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 09:28:50,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 09:28:50,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 09:28:50,869 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 80 proven. 72 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-10-17 09:28:50,894 INFO L85 PathProgramCache]: Analyzing trace with hash -180050647, now seen corresponding path program 1 times [2024-10-17 09:28:50,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 09:28:50,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 09:28:50,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 09:28:51,393 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 181 proven. 72 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-10-17 09:28:51,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 09:28:51,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 09:28:51,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 09:28:51,818 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 181 proven. 72 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-10-17 09:28:51,840 INFO L85 PathProgramCache]: Analyzing trace with hash 881578465, now seen corresponding path program 1 times [2024-10-17 09:28:51,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 09:28:51,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 09:28:51,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 09:28:52,294 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 181 proven. 72 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-10-17 09:28:52,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 09:28:52,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 09:28:52,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 09:28:52,764 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 181 proven. 72 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-10-17 09:28:52,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 09:28:52,765 INFO L85 PathProgramCache]: Analyzing trace with hash 2096618437, now seen corresponding path program 2 times [2024-10-17 09:28:52,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 09:28:52,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441503542] [2024-10-17 09:28:52,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 09:28:52,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 09:28:52,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 09:28:53,469 INFO L134 CoverageAnalysis]: Checked inductivity of 762 backedges. 240 proven. 366 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-10-17 09:28:53,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 09:28:53,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441503542] [2024-10-17 09:28:53,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441503542] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 09:28:53,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1932824813] [2024-10-17 09:28:53,471 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-17 09:28:53,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 09:28:53,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 09:28:53,475 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) [2024-10-17 09:28:53,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-17 09:28:53,595 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-17 09:28:53,595 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 09:28:53,598 INFO L255 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-10-17 09:28:53,602 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 09:28:54,334 INFO L134 CoverageAnalysis]: Checked inductivity of 762 backedges. 240 proven. 492 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-17 09:28:54,334 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 09:28:55,601 INFO L134 CoverageAnalysis]: Checked inductivity of 762 backedges. 240 proven. 492 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-17 09:28:55,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1932824813] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 09:28:55,602 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 09:28:55,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 21, 21] total 47 [2024-10-17 09:28:55,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635514697] [2024-10-17 09:28:55,602 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 09:28:55,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2024-10-17 09:28:55,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 09:28:55,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2024-10-17 09:28:55,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=287, Invalid=1875, Unknown=0, NotChecked=0, Total=2162 [2024-10-17 09:28:55,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 09:28:55,608 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 09:28:55,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 6.617021276595745) internal successors, (311), 47 states have internal predecessors, (311), 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) [2024-10-17 09:28:55,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-10-17 09:28:55,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 09:29:13,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-10-17 09:29:13,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2024-10-17 09:29:13,035 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-17 09:29:13,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,SelfDestructingSolverStorable19,SelfDestructingSolverStorable20,SelfDestructingSolverStorable10,SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12,SelfDestructingSolverStorable13,SelfDestructingSolverStorable14,SelfDestructingSolverStorable15,SelfDestructingSolverStorable16,SelfDestructingSolverStorable17 [2024-10-17 09:29:13,223 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-17 09:29:13,254 INFO L85 PathProgramCache]: Analyzing trace with hash 805131428, now seen corresponding path program 1 times [2024-10-17 09:29:13,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 09:29:13,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 09:29:13,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 09:29:16,601 INFO L134 CoverageAnalysis]: Checked inductivity of 3074 backedges. 62 proven. 1241 refuted. 0 times theorem prover too weak. 1771 trivial. 0 not checked. [2024-10-17 09:29:16,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 09:29:16,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 09:29:16,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 09:29:19,829 INFO L134 CoverageAnalysis]: Checked inductivity of 3074 backedges. 62 proven. 1241 refuted. 0 times theorem prover too weak. 1771 trivial. 0 not checked. [2024-10-17 09:29:19,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1292452203, now seen corresponding path program 1 times [2024-10-17 09:29:19,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 09:29:19,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 09:29:20,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 09:29:21,212 INFO L134 CoverageAnalysis]: Checked inductivity of 3473 backedges. 0 proven. 1451 refuted. 0 times theorem prover too weak. 2022 trivial. 0 not checked. [2024-10-17 09:29:21,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 09:29:21,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 09:29:21,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 09:29:22,506 INFO L134 CoverageAnalysis]: Checked inductivity of 3473 backedges. 0 proven. 1451 refuted. 0 times theorem prover too weak. 2022 trivial. 0 not checked. [2024-10-17 09:29:22,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1246655584, now seen corresponding path program 1 times [2024-10-17 09:29:22,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 09:29:22,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 09:29:22,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 09:29:24,994 INFO L134 CoverageAnalysis]: Checked inductivity of 3473 backedges. 0 proven. 3421 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-10-17 09:29:24,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 09:29:24,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 09:29:25,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 09:29:26,383 INFO L134 CoverageAnalysis]: Checked inductivity of 3473 backedges. 0 proven. 3421 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-10-17 09:29:26,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 09:29:26,384 INFO L85 PathProgramCache]: Analyzing trace with hash -453510420, now seen corresponding path program 3 times [2024-10-17 09:29:26,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 09:29:26,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86635976] [2024-10-17 09:29:26,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 09:29:26,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 09:29:26,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 09:29:27,602 INFO L134 CoverageAnalysis]: Checked inductivity of 2558 backedges. 460 proven. 553 refuted. 0 times theorem prover too weak. 1545 trivial. 0 not checked. [2024-10-17 09:29:27,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 09:29:27,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86635976] [2024-10-17 09:29:27,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86635976] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 09:29:27,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1005280494] [2024-10-17 09:29:27,603 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-17 09:29:27,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 09:29:27,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 09:29:27,605 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-17 09:29:27,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-17 09:29:28,181 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 26 check-sat command(s) [2024-10-17 09:29:28,182 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 09:29:28,187 INFO L255 TraceCheckSpWp]: Trace formula consists of 618 conjuncts, 78 conjuncts are in the unsatisfiable core [2024-10-17 09:29:28,193 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 09:29:29,360 INFO L134 CoverageAnalysis]: Checked inductivity of 2558 backedges. 460 proven. 2073 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-10-17 09:29:29,360 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 09:29:31,465 INFO L134 CoverageAnalysis]: Checked inductivity of 2558 backedges. 460 proven. 2073 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-10-17 09:29:31,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1005280494] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 09:29:31,466 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 09:29:31,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 41, 41] total 83 [2024-10-17 09:29:31,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473466647] [2024-10-17 09:29:31,466 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 09:29:31,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 83 states [2024-10-17 09:29:31,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 09:29:31,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2024-10-17 09:29:31,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1249, Invalid=5557, Unknown=0, NotChecked=0, Total=6806 [2024-10-17 09:29:31,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 09:29:31,474 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 09:29:31,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 83 states, 83 states have (on average 6.204819277108434) internal successors, (515), 83 states have internal predecessors, (515), 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) [2024-10-17 09:29:31,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-10-17 09:29:31,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 129 states. [2024-10-17 09:29:31,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 09:29:57,028 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-17 09:29:57,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-17 09:29:57,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2024-10-17 09:29:57,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2024-10-17 09:29:57,244 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-17 09:29:57,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,SelfDestructingSolverStorable22,SelfDestructingSolverStorable23,SelfDestructingSolverStorable24,SelfDestructingSolverStorable25,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26,SelfDestructingSolverStorable27 [2024-10-17 09:29:57,430 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-17 09:29:57,447 INFO L85 PathProgramCache]: Analyzing trace with hash -660890670, now seen corresponding path program 1 times [2024-10-17 09:29:57,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 09:29:57,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 09:29:57,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 09:30:01,769 INFO L134 CoverageAnalysis]: Checked inductivity of 5660 backedges. 0 proven. 5586 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-10-17 09:30:01,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 09:30:01,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 09:30:01,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 09:30:03,430 INFO L134 CoverageAnalysis]: Checked inductivity of 5660 backedges. 0 proven. 5586 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-10-17 09:30:03,446 INFO L85 PathProgramCache]: Analyzing trace with hash -851872014, now seen corresponding path program 1 times [2024-10-17 09:30:03,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 09:30:03,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 09:30:03,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 09:30:05,071 INFO L134 CoverageAnalysis]: Checked inductivity of 5678 backedges. 0 proven. 5586 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-10-17 09:30:05,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 09:30:05,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 09:30:05,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 09:30:06,531 INFO L134 CoverageAnalysis]: Checked inductivity of 5678 backedges. 0 proven. 5586 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-10-17 09:30:06,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1815675501, now seen corresponding path program 1 times [2024-10-17 09:30:06,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 09:30:06,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 09:30:06,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 09:30:10,865 INFO L134 CoverageAnalysis]: Checked inductivity of 5679 backedges. 17 proven. 5591 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-10-17 09:30:10,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 09:30:10,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 09:30:11,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 09:30:14,189 INFO L134 CoverageAnalysis]: Checked inductivity of 5679 backedges. 17 proven. 5591 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-10-17 09:30:14,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 09:30:14,190 INFO L85 PathProgramCache]: Analyzing trace with hash -684919156, now seen corresponding path program 4 times [2024-10-17 09:30:14,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 09:30:14,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504825994] [2024-10-17 09:30:14,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 09:30:14,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 09:30:14,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 09:30:17,318 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 873 proven. 3210 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-10-17 09:30:17,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 09:30:17,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504825994] [2024-10-17 09:30:17,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504825994] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 09:30:17,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1386052152] [2024-10-17 09:30:17,319 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-17 09:30:17,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 09:30:17,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 09:30:17,321 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-17 09:30:17,322 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-17 09:30:17,478 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-17 09:30:17,478 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 09:30:17,483 INFO L255 TraceCheckSpWp]: Trace formula consists of 738 conjuncts, 118 conjuncts are in the unsatisfiable core [2024-10-17 09:30:17,490 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 09:30:21,707 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 237 proven. 3900 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-17 09:30:21,707 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 09:30:30,502 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 237 proven. 3900 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-17 09:30:30,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1386052152] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 09:30:30,502 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 09:30:30,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 61, 61] total 168 [2024-10-17 09:30:30,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757179899] [2024-10-17 09:30:30,502 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 09:30:30,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 168 states [2024-10-17 09:30:30,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 09:30:30,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 168 interpolants. [2024-10-17 09:30:30,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2751, Invalid=25305, Unknown=0, NotChecked=0, Total=28056 [2024-10-17 09:30:30,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 09:30:30,516 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 09:30:30,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 168 states, 168 states have (on average 5.684523809523809) internal successors, (955), 168 states have internal predecessors, (955), 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) [2024-10-17 09:30:30,517 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2024-10-17 09:30:30,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 132 states. [2024-10-17 09:30:30,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2024-10-17 09:30:30,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 09:30:58,596 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (mod (+ 19 c_thread1Thread1of1ForFork0_~i~0) 4294967296)) (.cse1 (+ (mod (+ |c_thread2Thread1of1ForFork2_~i~1#1| 20) 4294967296) 1)) (.cse10 (mod (+ 14 c_thread1Thread1of1ForFork0_~i~0) 4294967296)) (.cse6 (mod (+ c_thread1Thread1of1ForFork0_~i~0 13) 4294967296)) (.cse13 (+ (mod (+ 14 |c_thread2Thread1of1ForFork2_~i~1#1|) 4294967296) 1)) (.cse11 (+ (mod (+ 15 |c_thread2Thread1of1ForFork2_~i~1#1|) 4294967296) 1)) (.cse5 (+ (mod (+ 23 |c_thread2Thread1of1ForFork2_~i~1#1|) 4294967296) 1)) (.cse14 (mod (+ 15 c_thread1Thread1of1ForFork0_~i~0) 4294967296)) (.cse20 (+ (mod (+ |c_thread2Thread1of1ForFork2_~i~1#1| 1) 4294967296) 1)) (.cse16 (+ (mod (+ 9 |c_thread2Thread1of1ForFork2_~i~1#1|) 4294967296) 1)) (.cse3 (+ (mod (+ 19 |c_thread2Thread1of1ForFork2_~i~1#1|) 4294967296) 1)) (.cse29 (mod (+ c_thread1Thread1of1ForFork0_~i~0 18) 4294967296)) (.cse22 (+ (mod (+ 16 |c_thread2Thread1of1ForFork2_~i~1#1|) 4294967296) 1)) (.cse25 (mod c_thread1Thread1of1ForFork0_~i~0 4294967296)) (.cse15 (mod (+ 9 c_thread1Thread1of1ForFork0_~i~0) 4294967296)) (.cse31 (+ (mod (+ |c_thread2Thread1of1ForFork2_~i~1#1| 12) 4294967296) 1)) (.cse26 (mod (+ 8 c_thread1Thread1of1ForFork0_~i~0) 4294967296)) (.cse38 (+ (mod (+ |c_thread2Thread1of1ForFork2_~i~1#1| 26) 4294967296) 1)) (.cse21 (mod (+ 23 c_thread1Thread1of1ForFork0_~i~0) 4294967296)) (.cse28 (+ (mod (+ |c_thread2Thread1of1ForFork2_~i~1#1| 24) 4294967296) 1)) (.cse9 (+ (mod (+ |c_thread2Thread1of1ForFork2_~i~1#1| 4) 4294967296) 1)) (.cse36 (+ (mod (+ 8 |c_thread2Thread1of1ForFork2_~i~1#1|) 4294967296) 1)) (.cse35 (mod (+ c_thread1Thread1of1ForFork0_~i~0 12) 4294967296)) (.cse7 (+ (mod (+ |c_thread2Thread1of1ForFork2_~i~1#1| 13) 4294967296) 1)) (.cse45 (mod (+ c_thread1Thread1of1ForFork0_~i~0 10) 4294967296)) (.cse34 (+ (mod (+ |c_thread2Thread1of1ForFork2_~i~1#1| 10) 4294967296) 1)) (.cse33 (mod (+ 16 c_thread1Thread1of1ForFork0_~i~0) 4294967296)) (.cse48 (+ (mod (+ |c_thread2Thread1of1ForFork2_~i~1#1| 17) 4294967296) 1)) (.cse0 (mod (+ c_thread1Thread1of1ForFork0_~i~0 20) 4294967296)) (.cse8 (mod (+ c_thread1Thread1of1ForFork0_~i~0 4) 4294967296)) (.cse44 (mod (+ 7 c_thread1Thread1of1ForFork0_~i~0) 4294967296)) (.cse30 (mod (+ c_thread1Thread1of1ForFork0_~i~0 11) 4294967296)) (.cse46 (+ (mod (+ |c_thread2Thread1of1ForFork2_~i~1#1| 11) 4294967296) 1)) (.cse51 (+ (mod (+ 7 |c_thread2Thread1of1ForFork2_~i~1#1|) 4294967296) 1)) (.cse4 (mod (+ 22 c_thread1Thread1of1ForFork0_~i~0) 4294967296)) (.cse24 (+ (mod (+ 22 |c_thread2Thread1of1ForFork2_~i~1#1|) 4294967296) 1)) (.cse41 (mod (+ 5 c_thread1Thread1of1ForFork0_~i~0) 4294967296)) (.cse50 (+ (mod (+ 5 |c_thread2Thread1of1ForFork2_~i~1#1|) 4294967296) 1)) (.cse37 (mod (+ c_thread1Thread1of1ForFork0_~i~0 25) 4294967296)) (.cse19 (mod (+ c_thread1Thread1of1ForFork0_~i~0 1) 4294967296)) (.cse52 (mod (+ 6 c_thread1Thread1of1ForFork0_~i~0) 4294967296)) (.cse42 (+ (mod (+ 6 |c_thread2Thread1of1ForFork2_~i~1#1|) 4294967296) 1)) (.cse40 (mod (+ 2 c_thread1Thread1of1ForFork0_~i~0) 4294967296)) (.cse43 (+ (mod (+ 3 |c_thread2Thread1of1ForFork2_~i~1#1|) 4294967296) 1)) (.cse47 (mod (+ c_thread1Thread1of1ForFork0_~i~0 17) 4294967296)) (.cse32 (+ (mod (+ |c_thread2Thread1of1ForFork2_~i~1#1| 18) 4294967296) 1)) (.cse23 (mod (+ 21 c_thread1Thread1of1ForFork0_~i~0) 4294967296)) (.cse49 (+ (mod (+ 21 |c_thread2Thread1of1ForFork2_~i~1#1|) 4294967296) 1)) (.cse17 (mod (+ c_thread1Thread1of1ForFork0_~i~0 27) 4294967296)) (.cse12 (+ (mod (+ |c_thread2Thread1of1ForFork2_~i~1#1| 28) 4294967296) 1)) (.cse39 (mod (+ c_thread1Thread1of1ForFork0_~i~0 26) 4294967296)) (.cse18 (+ (mod (+ |c_thread2Thread1of1ForFork2_~i~1#1| 27) 4294967296) 1)) (.cse27 (mod (+ c_thread1Thread1of1ForFork0_~i~0 24) 4294967296)) (.cse53 (+ (mod (+ |c_thread2Thread1of1ForFork2_~i~1#1| 25) 4294967296) 1))) (and (< .cse0 .cse1) (< .cse2 .cse3) (< .cse4 .cse5) (< .cse6 .cse7) (< .cse8 .cse9) (< .cse2 .cse1) (< .cse10 .cse11) (< (mod (+ c_thread1Thread1of1ForFork0_~i~0 28) 4294967296) .cse12) (< .cse10 .cse13) (< .cse6 .cse13) (< (mod (+ 3 c_thread1Thread1of1ForFork0_~i~0) 4294967296) .cse9) (< .cse14 .cse11) (< .cse15 .cse16) (< .cse17 .cse18) (< .cse19 .cse20) (< .cse21 .cse5) (< .cse14 .cse22) (< .cse23 .cse24) (< .cse25 .cse20) (< .cse26 .cse16) (< .cse27 .cse28) (< .cse29 .cse3) (< .cse30 .cse31) (< .cse29 .cse32) (< .cse33 .cse22) (< .cse25 (+ (mod |c_thread2Thread1of1ForFork2_~i~1#1| 4294967296) 1)) (< .cse15 .cse34) (< .cse35 .cse31) (< .cse26 .cse36) (< .cse37 .cse38) (< .cse39 .cse38) (< .cse21 .cse28) (< .cse40 .cse9) (< .cse41 .cse42) (< .cse19 .cse43) (< .cse44 .cse36) (< .cse35 .cse7) (< .cse45 .cse46) (< .cse47 .cse48) (< .cse45 .cse34) (< .cse33 .cse48) (< .cse0 .cse49) (< .cse8 .cse50) (< .cse44 .cse51) (< .cse30 .cse46) (< .cse52 .cse51) (< .cse4 .cse24) (< .cse41 .cse50) (< .cse37 .cse53) (< .cse19 (+ (mod (+ 2 |c_thread2Thread1of1ForFork2_~i~1#1|) 4294967296) 1)) (< .cse52 .cse42) (< .cse40 .cse43) (< .cse47 .cse32) (< .cse23 .cse49) (< .cse17 .cse12) (< .cse39 .cse18) (< .cse27 .cse53))) is different from false [2024-10-17 09:32:18,386 WARN L286 SmtUtils]: Spent 31.31s on a formula simplification. DAG size of input: 152 DAG size of output: 130 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-10-17 09:35:03,872 WARN L286 SmtUtils]: Spent 1.17m on a formula simplification. DAG size of input: 194 DAG size of output: 168 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-10-17 09:40:20,007 WARN L286 SmtUtils]: Spent 2.41m on a formula simplification. DAG size of input: 196 DAG size of output: 168 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) Killed by 15