./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/parallel-misc-4.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d2ba6107 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/parallel-misc-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 1b3f2e76aa91b47c1b0ab3ebb03a5219efabc6e79eff8c780f49eaa0a2d155ad --- Real Ultimate output --- This is Ultimate 0.2.3-dev-d2ba610-m [2023-11-21 20:30:12,018 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 20:30:12,090 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2023-11-21 20:30:12,096 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 20:30:12,096 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 20:30:12,119 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 20:30:12,120 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 20:30:12,120 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 20:30:12,121 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 20:30:12,124 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 20:30:12,125 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 20:30:12,125 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 20:30:12,125 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 20:30:12,126 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 20:30:12,127 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 20:30:12,127 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 20:30:12,127 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 20:30:12,127 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 20:30:12,127 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 20:30:12,128 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 20:30:12,128 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 20:30:12,128 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 20:30:12,128 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 20:30:12,129 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 20:30:12,129 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 20:30:12,129 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 20:30:12,129 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 20:30:12,130 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 20:30:12,130 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 20:30:12,130 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 20:30:12,131 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 20:30:12,131 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 20:30:12,131 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 20:30:12,131 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 20:30:12,136 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2023-11-21 20:30:12,136 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 20:30:12,136 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 20:30:12,136 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-21 20:30:12,137 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 20:30:12,137 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-21 20:30:12,137 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-21 20:30:12,137 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b3f2e76aa91b47c1b0ab3ebb03a5219efabc6e79eff8c780f49eaa0a2d155ad [2023-11-21 20:30:12,327 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 20:30:12,349 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 20:30:12,351 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 20:30:12,351 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 20:30:12,352 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 20:30:12,353 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/parallel-misc-4.wvr.c [2023-11-21 20:30:13,340 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 20:30:13,476 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 20:30:13,477 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-4.wvr.c [2023-11-21 20:30:13,484 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/377577af0/2cbd2fa4cfa64f2f9909ee79e68ce8ba/FLAGf03c2ad7c [2023-11-21 20:30:13,493 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/377577af0/2cbd2fa4cfa64f2f9909ee79e68ce8ba [2023-11-21 20:30:13,495 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 20:30:13,496 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 20:30:13,496 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 20:30:13,497 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 20:30:13,502 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 20:30:13,503 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 08:30:13" (1/1) ... [2023-11-21 20:30:13,504 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41335ef6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:30:13, skipping insertion in model container [2023-11-21 20:30:13,504 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 08:30:13" (1/1) ... [2023-11-21 20:30:13,525 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 20:30:13,647 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-4.wvr.c[2989,3002] [2023-11-21 20:30:13,650 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 20:30:13,656 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 20:30:13,671 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-4.wvr.c[2989,3002] [2023-11-21 20:30:13,671 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 20:30:13,676 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 20:30:13,676 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 20:30:13,685 INFO L206 MainTranslator]: Completed translation [2023-11-21 20:30:13,685 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:30:13 WrapperNode [2023-11-21 20:30:13,685 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 20:30:13,686 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 20:30:13,686 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 20:30:13,686 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 20:30:13,691 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:30:13" (1/1) ... [2023-11-21 20:30:13,697 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:30:13" (1/1) ... [2023-11-21 20:30:13,709 INFO L138 Inliner]: procedures = 22, calls = 43, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 74 [2023-11-21 20:30:13,710 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 20:30:13,710 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 20:30:13,710 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 20:30:13,710 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 20:30:13,716 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:30:13" (1/1) ... [2023-11-21 20:30:13,716 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:30:13" (1/1) ... [2023-11-21 20:30:13,718 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:30:13" (1/1) ... [2023-11-21 20:30:13,718 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:30:13" (1/1) ... [2023-11-21 20:30:13,722 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:30:13" (1/1) ... [2023-11-21 20:30:13,724 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:30:13" (1/1) ... [2023-11-21 20:30:13,725 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:30:13" (1/1) ... [2023-11-21 20:30:13,726 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:30:13" (1/1) ... [2023-11-21 20:30:13,727 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 20:30:13,728 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 20:30:13,728 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 20:30:13,728 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 20:30:13,729 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:30:13" (1/1) ... [2023-11-21 20:30:13,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 20:30:13,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-21 20:30:13,750 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 20:30:13,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 20:30:13,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 20:30:13,784 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-21 20:30:13,784 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-21 20:30:13,784 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-21 20:30:13,784 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-21 20:30:13,784 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-21 20:30:13,784 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-21 20:30:13,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 20:30:13,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 20:30:13,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 20:30:13,785 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-21 20:30:13,785 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-21 20:30:13,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 20:30:13,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 20:30:13,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 20:30:13,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 20:30:13,787 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-21 20:30:13,864 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 20:30:13,865 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 20:30:14,006 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 20:30:14,105 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 20:30:14,106 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 20:30:14,107 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 08:30:14 BoogieIcfgContainer [2023-11-21 20:30:14,107 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 20:30:14,109 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 20:30:14,109 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 20:30:14,111 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 20:30:14,111 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 08:30:13" (1/3) ... [2023-11-21 20:30:14,111 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25c1b6ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 08:30:14, skipping insertion in model container [2023-11-21 20:30:14,112 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:30:13" (2/3) ... [2023-11-21 20:30:14,112 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25c1b6ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 08:30:14, skipping insertion in model container [2023-11-21 20:30:14,112 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 08:30:14" (3/3) ... [2023-11-21 20:30:14,113 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-misc-4.wvr.c [2023-11-21 20:30:14,118 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 20:30:14,124 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 20:30:14,125 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 20:30:14,125 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 20:30:14,164 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-21 20:30:14,199 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 20:30:14,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-21 20:30:14,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-21 20:30:14,200 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-21 20:30:14,201 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-11-21 20:30:14,222 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-21 20:30:14,231 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-11-21 20:30:14,235 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@ac33f47, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 20:30:14,235 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-21 20:30:14,447 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-21 20:30:14,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:30:14,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1333200505, now seen corresponding path program 1 times [2023-11-21 20:30:14,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:30:14,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062938650] [2023-11-21 20:30:14,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:30:14,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:30:14,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:30:14,993 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 20:30:14,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:30:14,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062938650] [2023-11-21 20:30:14,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062938650] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 20:30:14,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1886384974] [2023-11-21 20:30:14,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:30:14,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 20:30:14,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-21 20:30:15,057 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 20:30:15,067 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-21 20:30:15,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:30:15,144 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-21 20:30:15,150 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 20:30:15,232 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 20:30:15,232 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 20:30:15,315 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 20:30:15,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1886384974] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 20:30:15,315 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 20:30:15,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 9 [2023-11-21 20:30:15,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480742822] [2023-11-21 20:30:15,317 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 20:30:15,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-21 20:30:15,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:30:15,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-21 20:30:15,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-21 20:30:15,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 20:30:15,360 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 20:30:15,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 9 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 20:30:15,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 20:30:15,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-21 20:30:15,716 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-21 20:30:15,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-21 20:30:15,914 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-21 20:30:15,914 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:30:15,914 INFO L85 PathProgramCache]: Analyzing trace with hash -677693427, now seen corresponding path program 1 times [2023-11-21 20:30:15,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:30:15,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972932891] [2023-11-21 20:30:15,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:30:15,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:30:15,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:30:16,200 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 8 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 20:30:16,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:30:16,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972932891] [2023-11-21 20:30:16,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972932891] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 20:30:16,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2125075968] [2023-11-21 20:30:16,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:30:16,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 20:30:16,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-21 20:30:16,204 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 20:30:16,221 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-21 20:30:16,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:30:16,274 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-21 20:30:16,277 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 20:30:16,358 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 19 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-21 20:30:16,358 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 20:30:16,398 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-21 20:30:16,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2125075968] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 20:30:16,398 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 20:30:16,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 5] total 14 [2023-11-21 20:30:16,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023359487] [2023-11-21 20:30:16,399 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 20:30:16,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-21 20:30:16,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:30:16,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-21 20:30:16,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2023-11-21 20:30:16,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 20:30:16,403 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 20:30:16,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.928571428571429) internal successors, (111), 14 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 20:30:16,403 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-11-21 20:30:16,403 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 20:30:16,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-21 20:30:16,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-21 20:30:16,891 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-21 20:30:17,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 20:30:17,085 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-21 20:30:17,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:30:17,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1588473664, now seen corresponding path program 1 times [2023-11-21 20:30:17,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:30:17,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580878557] [2023-11-21 20:30:17,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:30:17,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:30:17,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:30:17,182 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-21 20:30:17,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:30:17,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580878557] [2023-11-21 20:30:17,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580878557] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:30:17,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 20:30:17,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 20:30:17,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195433527] [2023-11-21 20:30:17,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:30:17,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 20:30:17,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:30:17,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 20:30:17,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 20:30:17,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 20:30:17,184 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 20:30:17,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 20:30:17,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-11-21 20:30:17,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2023-11-21 20:30:17,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 20:30:17,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-21 20:30:17,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-21 20:30:17,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 20:30:17,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 20:30:17,322 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-21 20:30:17,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:30:17,323 INFO L85 PathProgramCache]: Analyzing trace with hash -344198687, now seen corresponding path program 2 times [2023-11-21 20:30:17,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:30:17,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139052531] [2023-11-21 20:30:17,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:30:17,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:30:17,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:30:17,448 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-21 20:30:17,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:30:17,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139052531] [2023-11-21 20:30:17,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139052531] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:30:17,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 20:30:17,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 20:30:17,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190923469] [2023-11-21 20:30:17,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:30:17,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 20:30:17,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:30:17,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 20:30:17,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 20:30:17,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 20:30:17,451 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 20:30:17,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 20:30:17,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-11-21 20:30:17,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2023-11-21 20:30:17,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-21 20:30:17,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 20:30:17,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-21 20:30:17,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-21 20:30:17,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 20:30:17,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 20:30:17,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 20:30:17,580 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-21 20:30:17,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:30:17,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1235689077, now seen corresponding path program 1 times [2023-11-21 20:30:17,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:30:17,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101285162] [2023-11-21 20:30:17,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:30:17,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:30:17,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:30:17,827 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 63 proven. 54 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-21 20:30:17,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:30:17,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101285162] [2023-11-21 20:30:17,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101285162] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 20:30:17,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1300993937] [2023-11-21 20:30:17,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:30:17,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 20:30:17,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-21 20:30:17,832 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 20:30:17,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-21 20:30:17,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:30:17,916 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-21 20:30:17,919 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 20:30:18,062 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 17 proven. 97 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-21 20:30:18,062 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 20:30:18,263 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 29 proven. 85 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-21 20:30:18,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1300993937] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 20:30:18,263 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 20:30:18,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 13, 13] total 24 [2023-11-21 20:30:18,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964241911] [2023-11-21 20:30:18,264 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 20:30:18,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-11-21 20:30:18,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:30:18,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-11-21 20:30:18,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=447, Unknown=0, NotChecked=0, Total=600 [2023-11-21 20:30:18,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 20:30:18,268 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 20:30:18,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 7.2) internal successors, (180), 24 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) [2023-11-21 20:30:18,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-11-21 20:30:18,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2023-11-21 20:30:18,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-21 20:30:18,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-21 20:30:18,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 20:30:20,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-21 20:30:20,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-21 20:30:20,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 20:30:20,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 20:30:20,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2023-11-21 20:30:20,871 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-21 20:30:21,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 20:30:21,060 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-21 20:30:21,061 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:30:21,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1761285237, now seen corresponding path program 2 times [2023-11-21 20:30:21,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:30:21,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157490524] [2023-11-21 20:30:21,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:30:21,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:30:21,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:30:21,104 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 20:30:21,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:30:21,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157490524] [2023-11-21 20:30:21,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157490524] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:30:21,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 20:30:21,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 20:30:21,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115587555] [2023-11-21 20:30:21,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:30:21,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 20:30:21,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:30:21,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 20:30:21,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 20:30:21,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 20:30:21,106 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 20:30:21,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 20:30:21,106 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-11-21 20:30:21,106 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2023-11-21 20:30:21,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-21 20:30:21,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-21 20:30:21,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 114 states. [2023-11-21 20:30:21,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 20:30:21,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-21 20:30:21,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-21 20:30:21,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 20:30:21,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 20:30:21,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2023-11-21 20:30:21,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 20:30:21,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-21 20:30:21,604 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-21 20:30:21,604 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:30:21,604 INFO L85 PathProgramCache]: Analyzing trace with hash 593717202, now seen corresponding path program 1 times [2023-11-21 20:30:21,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:30:21,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349440224] [2023-11-21 20:30:21,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:30:21,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:30:21,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:30:21,645 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-11-21 20:30:21,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:30:21,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349440224] [2023-11-21 20:30:21,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349440224] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:30:21,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 20:30:21,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 20:30:21,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139610429] [2023-11-21 20:30:21,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:30:21,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 20:30:21,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:30:21,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 20:30:21,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 20:30:21,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 20:30:21,651 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 20:30:21,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 20:30:21,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-11-21 20:30:21,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2023-11-21 20:30:21,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-21 20:30:21,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-21 20:30:21,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 132 states. [2023-11-21 20:30:21,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 20:30:21,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 20:30:23,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-21 20:30:23,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-11-21 20:30:23,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 20:30:23,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 20:30:23,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 152 states. [2023-11-21 20:30:23,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 20:30:23,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 20:30:23,048 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-11-21 20:30:23,049 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-11-21 20:30:23,049 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-11-21 20:30:23,049 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-11-21 20:30:23,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-21 20:30:23,054 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1] [2023-11-21 20:30:23,055 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-21 20:30:23,055 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 20:30:23,057 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 08:30:23 BasicIcfg [2023-11-21 20:30:23,057 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 20:30:23,058 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 20:30:23,058 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 20:30:23,058 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 20:30:23,058 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 08:30:14" (3/4) ... [2023-11-21 20:30:23,059 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 20:30:23,062 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-21 20:30:23,062 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-21 20:30:23,062 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2023-11-21 20:30:23,065 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 61 nodes and edges [2023-11-21 20:30:23,065 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-11-21 20:30:23,065 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-21 20:30:23,065 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-21 20:30:23,122 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.graphml [2023-11-21 20:30:23,123 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.yml [2023-11-21 20:30:23,123 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 20:30:23,123 INFO L158 Benchmark]: Toolchain (without parser) took 9627.45ms. Allocated memory was 169.9MB in the beginning and 327.2MB in the end (delta: 157.3MB). Free memory was 111.6MB in the beginning and 172.3MB in the end (delta: -60.6MB). Peak memory consumption was 99.3MB. Max. memory is 16.1GB. [2023-11-21 20:30:23,123 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 169.9MB. Free memory is still 135.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 20:30:23,124 INFO L158 Benchmark]: CACSL2BoogieTranslator took 188.78ms. Allocated memory is still 169.9MB. Free memory was 111.4MB in the beginning and 100.0MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-21 20:30:23,124 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.90ms. Allocated memory is still 169.9MB. Free memory was 100.0MB in the beginning and 98.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 20:30:23,124 INFO L158 Benchmark]: Boogie Preprocessor took 17.44ms. Allocated memory is still 169.9MB. Free memory was 98.1MB in the beginning and 96.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 20:30:23,124 INFO L158 Benchmark]: RCFGBuilder took 379.27ms. Allocated memory is still 169.9MB. Free memory was 96.7MB in the beginning and 67.6MB in the end (delta: 29.1MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-21 20:30:23,124 INFO L158 Benchmark]: TraceAbstraction took 8948.82ms. Allocated memory was 169.9MB in the beginning and 327.2MB in the end (delta: 157.3MB). Free memory was 66.9MB in the beginning and 177.5MB in the end (delta: -110.6MB). Peak memory consumption was 46.9MB. Max. memory is 16.1GB. [2023-11-21 20:30:23,125 INFO L158 Benchmark]: Witness Printer took 65.02ms. Allocated memory is still 327.2MB. Free memory was 177.5MB in the beginning and 172.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-21 20:30:23,126 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 169.9MB. Free memory is still 135.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 188.78ms. Allocated memory is still 169.9MB. Free memory was 111.4MB in the beginning and 100.0MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.90ms. Allocated memory is still 169.9MB. Free memory was 100.0MB in the beginning and 98.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.44ms. Allocated memory is still 169.9MB. Free memory was 98.1MB in the beginning and 96.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 379.27ms. Allocated memory is still 169.9MB. Free memory was 96.7MB in the beginning and 67.6MB in the end (delta: 29.1MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 8948.82ms. Allocated memory was 169.9MB in the beginning and 327.2MB in the end (delta: 157.3MB). Free memory was 66.9MB in the beginning and 177.5MB in the end (delta: -110.6MB). Peak memory consumption was 46.9MB. Max. memory is 16.1GB. * Witness Printer took 65.02ms. Allocated memory is still 327.2MB. Free memory was 177.5MB in the beginning and 172.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 164953, independent: 136598, independent conditional: 135508, independent unconditional: 1090, dependent: 28355, dependent conditional: 28332, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 138365, independent: 136598, independent conditional: 135508, independent unconditional: 1090, dependent: 1767, dependent conditional: 1744, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 138365, independent: 136598, independent conditional: 135508, independent unconditional: 1090, dependent: 1767, dependent conditional: 1744, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 149725, independent: 136598, independent conditional: 2160, independent unconditional: 134438, dependent: 13127, dependent conditional: 9200, dependent unconditional: 3927, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 149725, independent: 136598, independent conditional: 2160, independent unconditional: 134438, dependent: 13127, dependent conditional: 5138, dependent unconditional: 7989, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 149725, independent: 136598, independent conditional: 2160, independent unconditional: 134438, dependent: 13127, dependent conditional: 5138, dependent unconditional: 7989, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1095, independent: 948, independent conditional: 109, independent unconditional: 839, dependent: 147, dependent conditional: 124, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1095, independent: 829, independent conditional: 0, independent unconditional: 829, dependent: 266, dependent conditional: 0, dependent unconditional: 266, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 266, independent: 119, independent conditional: 109, independent unconditional: 10, dependent: 147, dependent conditional: 124, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 266, independent: 119, independent conditional: 109, independent unconditional: 10, dependent: 147, dependent conditional: 124, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 419, independent: 216, independent conditional: 149, independent unconditional: 67, dependent: 203, dependent conditional: 133, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 149725, independent: 135650, independent conditional: 2051, independent unconditional: 133599, dependent: 12980, dependent conditional: 5014, dependent unconditional: 7966, unknown: 1095, unknown conditional: 233, unknown unconditional: 862] , Statistics on independence cache: Total cache size (in pairs): 1095, Positive cache size: 948, Positive conditional cache size: 109, Positive unconditional cache size: 839, Negative cache size: 147, Negative conditional cache size: 124, Negative unconditional cache size: 23, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 4062, Maximal queried relation: 6, Independence queries for same thread: 26588 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.2s, Number of persistent set computation: 531, Number of trivial persistent sets: 456, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1113, independent: 1090, independent conditional: 0, independent unconditional: 1090, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 164953, independent: 136598, independent conditional: 135508, independent unconditional: 1090, dependent: 28355, dependent conditional: 28332, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 138365, independent: 136598, independent conditional: 135508, independent unconditional: 1090, dependent: 1767, dependent conditional: 1744, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 138365, independent: 136598, independent conditional: 135508, independent unconditional: 1090, dependent: 1767, dependent conditional: 1744, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 149725, independent: 136598, independent conditional: 2160, independent unconditional: 134438, dependent: 13127, dependent conditional: 9200, dependent unconditional: 3927, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 149725, independent: 136598, independent conditional: 2160, independent unconditional: 134438, dependent: 13127, dependent conditional: 5138, dependent unconditional: 7989, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 149725, independent: 136598, independent conditional: 2160, independent unconditional: 134438, dependent: 13127, dependent conditional: 5138, dependent unconditional: 7989, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1095, independent: 948, independent conditional: 109, independent unconditional: 839, dependent: 147, dependent conditional: 124, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1095, independent: 829, independent conditional: 0, independent unconditional: 829, dependent: 266, dependent conditional: 0, dependent unconditional: 266, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 266, independent: 119, independent conditional: 109, independent unconditional: 10, dependent: 147, dependent conditional: 124, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 266, independent: 119, independent conditional: 109, independent unconditional: 10, dependent: 147, dependent conditional: 124, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 419, independent: 216, independent conditional: 149, independent unconditional: 67, dependent: 203, dependent conditional: 133, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 149725, independent: 135650, independent conditional: 2051, independent unconditional: 133599, dependent: 12980, dependent conditional: 5014, dependent unconditional: 7966, unknown: 1095, unknown conditional: 233, unknown unconditional: 862] , Statistics on independence cache: Total cache size (in pairs): 1095, Positive cache size: 948, Positive conditional cache size: 109, Positive unconditional cache size: 839, Negative cache size: 147, Negative conditional cache size: 124, Negative unconditional cache size: 23, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 4062, Maximal queried relation: 6, Independence queries for same thread: 26588 - PositiveResult [Line: 116]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 63 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 8.8s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 5.8s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 225, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 540 NumberOfCodeBlocks, 540 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 681 ConstructedInterpolants, 0 QuantifiedInterpolants, 2101 SizeOfPredicates, 18 NumberOfNonLiveVariables, 639 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 13 InterpolantComputations, 4 PerfectInterpolantSequences, 393/668 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-21 20:30:23,146 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2023-11-21 20:30:23,358 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE