./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/test-hard1.wvr.c --full-output --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5dad65ad 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/test-hard1.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 34f393fd72a97393a0a39d407b9330aa7c1c7e210ad76310ea88c9427f882106 --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --- Real Ultimate output --- This is Ultimate 0.2.5-dev-5dad65a-m [2024-10-22 12:52:18,502 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-22 12:52:18,550 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-10-22 12:52:18,553 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-22 12:52:18,555 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-22 12:52:18,577 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-22 12:52:18,577 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-22 12:52:18,578 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-22 12:52:18,578 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-22 12:52:18,579 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-22 12:52:18,580 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-22 12:52:18,580 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-22 12:52:18,581 INFO L153 SettingsManager]: * Use SBE=true [2024-10-22 12:52:18,581 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-22 12:52:18,582 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-22 12:52:18,582 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-22 12:52:18,582 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-22 12:52:18,584 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-22 12:52:18,584 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-22 12:52:18,584 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-22 12:52:18,585 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-22 12:52:18,585 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-22 12:52:18,585 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-22 12:52:18,585 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-22 12:52:18,585 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-22 12:52:18,585 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-22 12:52:18,586 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-22 12:52:18,586 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-22 12:52:18,586 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-22 12:52:18,586 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-22 12:52:18,586 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-22 12:52:18,586 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-22 12:52:18,586 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-22 12:52:18,587 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-22 12:52:18,587 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-22 12:52:18,587 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-10-22 12:52:18,587 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-22 12:52:18,587 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-22 12:52:18,587 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-22 12:52:18,587 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-22 12:52:18,588 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-22 12:52:18,589 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34f393fd72a97393a0a39d407b9330aa7c1c7e210ad76310ea88c9427f882106 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP [2024-10-22 12:52:18,788 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-22 12:52:18,805 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-22 12:52:18,808 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-22 12:52:18,809 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-22 12:52:18,809 INFO L274 PluginConnector]: CDTParser initialized [2024-10-22 12:52:18,810 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/test-hard1.wvr.c [2024-10-22 12:52:20,038 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-22 12:52:20,195 INFO L384 CDTParser]: Found 1 translation units. [2024-10-22 12:52:20,195 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-hard1.wvr.c [2024-10-22 12:52:20,202 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/665c658cb/f2b51334abfa4cd6963a58cf56eaef00/FLAG2633ee51d [2024-10-22 12:52:20,595 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/665c658cb/f2b51334abfa4cd6963a58cf56eaef00 [2024-10-22 12:52:20,597 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-22 12:52:20,598 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-22 12:52:20,598 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-22 12:52:20,599 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-22 12:52:20,603 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-22 12:52:20,604 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 12:52:20" (1/1) ... [2024-10-22 12:52:20,604 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1388d672 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:52:20, skipping insertion in model container [2024-10-22 12:52:20,605 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 12:52:20" (1/1) ... [2024-10-22 12:52:20,624 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-22 12:52:20,795 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-hard1.wvr.c[3425,3438] [2024-10-22 12:52:20,803 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-22 12:52:20,810 INFO L200 MainTranslator]: Completed pre-run [2024-10-22 12:52:20,830 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-hard1.wvr.c[3425,3438] [2024-10-22 12:52:20,831 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-22 12:52:20,844 INFO L204 MainTranslator]: Completed translation [2024-10-22 12:52:20,844 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:52:20 WrapperNode [2024-10-22 12:52:20,844 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-22 12:52:20,847 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-22 12:52:20,847 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-22 12:52:20,847 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-22 12:52:20,852 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:52:20" (1/1) ... [2024-10-22 12:52:20,857 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:52:20" (1/1) ... [2024-10-22 12:52:20,869 INFO L138 Inliner]: procedures = 23, calls = 36, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 73 [2024-10-22 12:52:20,870 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-22 12:52:20,870 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-22 12:52:20,870 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-22 12:52:20,870 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-22 12:52:20,877 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:52:20" (1/1) ... [2024-10-22 12:52:20,877 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:52:20" (1/1) ... [2024-10-22 12:52:20,879 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:52:20" (1/1) ... [2024-10-22 12:52:20,879 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:52:20" (1/1) ... [2024-10-22 12:52:20,882 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:52:20" (1/1) ... [2024-10-22 12:52:20,885 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:52:20" (1/1) ... [2024-10-22 12:52:20,886 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:52:20" (1/1) ... [2024-10-22 12:52:20,887 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:52:20" (1/1) ... [2024-10-22 12:52:20,888 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-22 12:52:20,889 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-22 12:52:20,889 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-22 12:52:20,889 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-22 12:52:20,890 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:52:20" (1/1) ... [2024-10-22 12:52:20,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-22 12:52:20,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-22 12:52:20,925 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) [2024-10-22 12:52:20,932 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 [2024-10-22 12:52:20,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-22 12:52:20,965 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-22 12:52:20,965 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-22 12:52:20,965 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-22 12:52:20,965 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-22 12:52:20,966 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-22 12:52:20,966 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-22 12:52:20,966 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-10-22 12:52:20,966 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-10-22 12:52:20,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-22 12:52:20,967 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-22 12:52:20,967 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-22 12:52:20,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-22 12:52:20,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-22 12:52:20,969 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-22 12:52:21,060 INFO L238 CfgBuilder]: Building ICFG [2024-10-22 12:52:21,062 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-22 12:52:21,292 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-22 12:52:21,294 INFO L287 CfgBuilder]: Performing block encoding [2024-10-22 12:52:21,447 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-22 12:52:21,447 INFO L314 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-22 12:52:21,448 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 12:52:21 BoogieIcfgContainer [2024-10-22 12:52:21,448 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-22 12:52:21,449 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-22 12:52:21,449 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-22 12:52:21,452 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-22 12:52:21,452 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 12:52:20" (1/3) ... [2024-10-22 12:52:21,454 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4406e528 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 12:52:21, skipping insertion in model container [2024-10-22 12:52:21,454 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:52:20" (2/3) ... [2024-10-22 12:52:21,454 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4406e528 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 12:52:21, skipping insertion in model container [2024-10-22 12:52:21,455 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 12:52:21" (3/3) ... [2024-10-22 12:52:21,455 INFO L112 eAbstractionObserver]: Analyzing ICFG test-hard1.wvr.c [2024-10-22 12:52:21,472 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-22 12:52:21,472 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-22 12:52:21,472 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-22 12:52:21,517 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-22 12:52:21,557 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-22 12:52:21,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-22 12:52:21,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-22 12:52:21,560 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) [2024-10-22 12:52:21,561 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 [2024-10-22 12:52:21,589 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-22 12:52:21,599 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-22 12:52:21,604 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;@6962bef3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-22 12:52:21,604 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-10-22 12:52:23,273 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)] === [2024-10-22 12:52:23,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 12:52:23,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1752138499, now seen corresponding path program 1 times [2024-10-22 12:52:23,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-22 12:52:23,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314681665] [2024-10-22 12:52:23,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 12:52:23,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-22 12:52:23,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 12:52:23,963 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-10-22 12:52:23,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-22 12:52:23,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314681665] [2024-10-22 12:52:23,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314681665] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-22 12:52:23,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-22 12:52:23,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-22 12:52:23,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423712507] [2024-10-22 12:52:23,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-22 12:52:23,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-22 12:52:23,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-22 12:52:23,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-22 12:52:23,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-22 12:52:23,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 12:52:23,996 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-22 12:52:23,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 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) [2024-10-22 12:52:23,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 12:52:24,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-22 12:52:24,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-22 12:52:24,294 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)] === [2024-10-22 12:52:24,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 12:52:24,295 INFO L85 PathProgramCache]: Analyzing trace with hash -506789776, now seen corresponding path program 2 times [2024-10-22 12:52:24,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-22 12:52:24,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682315850] [2024-10-22 12:52:24,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 12:52:24,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-22 12:52:24,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 12:52:27,208 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 91 proven. 141 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-22 12:52:27,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-22 12:52:27,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682315850] [2024-10-22 12:52:27,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682315850] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-22 12:52:27,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [8648534] [2024-10-22 12:52:27,209 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-22 12:52:27,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-22 12:52:27,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-22 12:52:27,211 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) [2024-10-22 12:52:27,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-22 12:52:27,295 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-22 12:52:27,295 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-22 12:52:27,298 INFO L255 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-22 12:52:27,302 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-22 12:52:27,391 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2024-10-22 12:52:27,393 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-22 12:52:27,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [8648534] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-22 12:52:27,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-22 12:52:27,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [27] total 31 [2024-10-22 12:52:27,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430896010] [2024-10-22 12:52:27,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-22 12:52:27,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-22 12:52:27,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-22 12:52:27,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-22 12:52:27,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=793, Unknown=0, NotChecked=0, Total=930 [2024-10-22 12:52:27,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 12:52:27,397 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-22 12:52:27,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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) [2024-10-22 12:52:27,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-10-22 12:52:27,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 12:52:27,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-22 12:52:27,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-22 12:52:27,698 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-22 12:52:27,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-10-22 12:52:27,886 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)] === [2024-10-22 12:52:27,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 12:52:27,886 INFO L85 PathProgramCache]: Analyzing trace with hash 564381910, now seen corresponding path program 3 times [2024-10-22 12:52:27,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-22 12:52:27,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708096124] [2024-10-22 12:52:27,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 12:52:27,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-22 12:52:27,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 12:52:28,353 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 180 proven. 4 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2024-10-22 12:52:28,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-22 12:52:28,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708096124] [2024-10-22 12:52:28,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708096124] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-22 12:52:28,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1639810627] [2024-10-22 12:52:28,354 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-22 12:52:28,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-22 12:52:28,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-22 12:52:28,357 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) [2024-10-22 12:52:28,359 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-22 12:52:28,435 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-10-22 12:52:28,435 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-22 12:52:28,438 INFO L255 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-22 12:52:28,440 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-22 12:52:28,554 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 180 proven. 4 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2024-10-22 12:52:28,554 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-22 12:52:28,659 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 175 proven. 19 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2024-10-22 12:52:28,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1639810627] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-22 12:52:28,660 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-22 12:52:28,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 7] total 14 [2024-10-22 12:52:28,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135740604] [2024-10-22 12:52:28,660 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-22 12:52:28,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-22 12:52:28,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-22 12:52:28,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-22 12:52:28,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-10-22 12:52:28,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 12:52:28,662 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-22 12:52:28,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.071428571428571) internal successors, (85), 14 states have internal predecessors, (85), 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) [2024-10-22 12:52:28,664 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-10-22 12:52:28,664 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-10-22 12:52:28,664 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 12:52:29,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-22 12:52:29,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-22 12:52:29,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-10-22 12:52:29,757 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-22 12:52:29,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-22 12:52:29,939 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)] === [2024-10-22 12:52:29,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 12:52:29,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1323657417, now seen corresponding path program 4 times [2024-10-22 12:52:29,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-22 12:52:29,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798179046] [2024-10-22 12:52:29,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 12:52:29,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-22 12:52:30,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 12:52:30,320 INFO L134 CoverageAnalysis]: Checked inductivity of 808 backedges. 418 proven. 0 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2024-10-22 12:52:30,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-22 12:52:30,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798179046] [2024-10-22 12:52:30,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798179046] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-22 12:52:30,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-22 12:52:30,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-22 12:52:30,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300582604] [2024-10-22 12:52:30,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-22 12:52:30,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-22 12:52:30,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-22 12:52:30,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-22 12:52:30,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-22 12:52:30,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 12:52:30,322 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-22 12:52:30,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 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) [2024-10-22 12:52:30,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-10-22 12:52:30,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-10-22 12:52:30,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2024-10-22 12:52:30,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 12:52:30,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-22 12:52:30,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-22 12:52:30,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-10-22 12:52:30,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-22 12:52:30,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-22 12:52:30,756 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-22 12:52:30,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 12:52:30,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1649490845, now seen corresponding path program 5 times [2024-10-22 12:52:30,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-22 12:52:30,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986465232] [2024-10-22 12:52:30,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 12:52:30,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-22 12:52:30,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 12:52:45,727 INFO L134 CoverageAnalysis]: Checked inductivity of 2049 backedges. 557 proven. 1388 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-10-22 12:52:45,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-22 12:52:45,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986465232] [2024-10-22 12:52:45,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986465232] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-22 12:52:45,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1745292339] [2024-10-22 12:52:45,728 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-22 12:52:45,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-22 12:52:45,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-22 12:52:45,730 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) [2024-10-22 12:52:45,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-22 12:52:45,908 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) [2024-10-22 12:52:45,909 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-22 12:52:45,911 INFO L255 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-22 12:52:45,918 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-22 12:52:46,154 INFO L134 CoverageAnalysis]: Checked inductivity of 2049 backedges. 842 proven. 104 refuted. 0 times theorem prover too weak. 1103 trivial. 0 not checked. [2024-10-22 12:52:46,155 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-22 12:52:46,339 INFO L134 CoverageAnalysis]: Checked inductivity of 2049 backedges. 826 proven. 4 refuted. 0 times theorem prover too weak. 1219 trivial. 0 not checked. [2024-10-22 12:52:46,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1745292339] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-22 12:52:46,339 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-22 12:52:46,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [67, 7, 6] total 77 [2024-10-22 12:52:46,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456222974] [2024-10-22 12:52:46,340 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-22 12:52:46,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 77 states [2024-10-22 12:52:46,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-22 12:52:46,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2024-10-22 12:52:46,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=386, Invalid=5466, Unknown=0, NotChecked=0, Total=5852 [2024-10-22 12:52:46,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 12:52:46,344 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-22 12:52:46,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 77 states, 77 states have (on average 3.3766233766233764) internal successors, (260), 77 states have internal predecessors, (260), 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) [2024-10-22 12:52:46,344 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-10-22 12:52:46,344 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-10-22 12:52:46,344 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2024-10-22 12:52:46,344 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-22 12:52:46,344 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 12:52:55,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-22 12:52:55,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-22 12:52:55,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-10-22 12:52:55,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-22 12:52:55,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 147 states. [2024-10-22 12:52:55,198 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-22 12:52:55,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-22 12:52:55,385 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-22 12:52:55,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 12:52:55,386 INFO L85 PathProgramCache]: Analyzing trace with hash 3030630, now seen corresponding path program 6 times [2024-10-22 12:52:55,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-22 12:52:55,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382133646] [2024-10-22 12:52:55,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 12:52:55,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-22 12:52:55,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 12:53:40,252 INFO L134 CoverageAnalysis]: Checked inductivity of 3902 backedges. 553 proven. 3302 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-10-22 12:53:40,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-22 12:53:40,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382133646] [2024-10-22 12:53:40,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382133646] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-22 12:53:40,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [762157410] [2024-10-22 12:53:40,252 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-22 12:53:40,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-22 12:53:40,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-22 12:53:40,254 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) [2024-10-22 12:53:40,254 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-22 12:53:40,868 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 29 check-sat command(s) [2024-10-22 12:53:40,868 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-22 12:53:40,874 INFO L255 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 151 conjuncts are in the unsatisfiable core [2024-10-22 12:53:40,885 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-22 12:55:56,527 INFO L134 CoverageAnalysis]: Checked inductivity of 3902 backedges. 290 proven. 3539 refuted. 9 times theorem prover too weak. 64 trivial. 0 not checked. [2024-10-22 12:55:56,527 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-22 12:56:15,650 INFO L134 CoverageAnalysis]: Checked inductivity of 3902 backedges. 286 proven. 3616 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-22 12:56:15,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [762157410] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-22 12:56:15,651 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-22 12:56:15,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [115, 92, 133] total 336 [2024-10-22 12:56:15,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627163996] [2024-10-22 12:56:15,651 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-22 12:56:15,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 337 states [2024-10-22 12:56:15,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-22 12:56:15,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 337 interpolants. [2024-10-22 12:56:15,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21423, Invalid=91799, Unknown=10, NotChecked=0, Total=113232 [2024-10-22 12:56:15,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 12:56:15,678 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-22 12:56:15,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 337 states, 337 states have (on average 2.6320474777448073) internal successors, (887), 336 states have internal predecessors, (887), 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) [2024-10-22 12:56:15,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-10-22 12:56:15,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-10-22 12:56:15,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2024-10-22 12:56:15,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-22 12:56:15,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 147 states. [2024-10-22 12:56:15,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 12:56:51,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-22 12:57:22,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-22 12:57:53,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-22 12:58:03,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-22 12:58:46,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-22 12:58:50,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-22 12:59:08,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-22 12:59:10,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-22 12:59:36,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-22 12:59:43,958 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 [] [2024-10-22 13:00:26,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-22 13:00:26,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-22 13:00:26,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-10-22 13:00:26,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-22 13:00:26,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 150 states. [2024-10-22 13:00:26,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 357 states. [2024-10-22 13:00:26,690 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-22 13:00:26,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-10-22 13:00:26,875 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-22 13:00:26,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 13:00:26,875 INFO L85 PathProgramCache]: Analyzing trace with hash -138958832, now seen corresponding path program 7 times [2024-10-22 13:00:26,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-22 13:00:26,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972199214] [2024-10-22 13:00:26,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 13:00:26,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-22 13:00:27,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 13:01:38,049 INFO L134 CoverageAnalysis]: Checked inductivity of 6271 backedges. 1164 proven. 5024 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-10-22 13:01:38,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-22 13:01:38,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972199214] [2024-10-22 13:01:38,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972199214] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-22 13:01:38,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1152542877] [2024-10-22 13:01:38,050 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-22 13:01:38,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-22 13:01:38,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-22 13:01:38,052 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-22 13:01:38,052 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-22 13:01:38,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 13:01:38,724 INFO L255 TraceCheckSpWp]: Trace formula consists of 677 conjuncts, 202 conjuncts are in the unsatisfiable core [2024-10-22 13:01:38,738 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-22 13:03:15,442 INFO L134 CoverageAnalysis]: Checked inductivity of 6271 backedges. 863 proven. 5330 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-10-22 13:03:15,442 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-22 13:03:42,412 INFO L134 CoverageAnalysis]: Checked inductivity of 6271 backedges. 39 proven. 6232 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-22 13:03:42,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1152542877] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-22 13:03:42,413 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-22 13:03:42,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [131, 139, 177] total 445 [2024-10-22 13:03:42,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461165033] [2024-10-22 13:03:42,413 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-22 13:03:42,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 446 states [2024-10-22 13:03:42,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-22 13:03:42,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 446 interpolants. [2024-10-22 13:03:42,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37223, Invalid=161247, Unknown=0, NotChecked=0, Total=198470 [2024-10-22 13:03:42,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:03:42,430 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-22 13:03:42,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 446 states, 446 states have (on average 2.4730941704035874) internal successors, (1103), 445 states have internal predecessors, (1103), 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) [2024-10-22 13:03:42,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-10-22 13:03:42,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-10-22 13:03:42,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2024-10-22 13:03:42,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-22 13:03:42,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 150 states. [2024-10-22 13:03:42,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 357 states. [2024-10-22 13:03:42,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:04:45,425 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 [] [2024-10-22 13:05:13,026 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-22 13:05:28,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] Killed by 15