./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-min-max-inc-dec.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6568ba33 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/weaver/popl20-min-max-inc-dec.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 47fde0ba5912e0415b0c299af0f3ae7b3e6a5b956bf726bb77299079d74126b4 --- Real Ultimate output --- This is Ultimate 0.2.3-?-6568ba3-m [2023-11-23 23:23:46,588 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 23:23:46,674 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2023-11-23 23:23:46,680 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 23:23:46,680 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 23:23:46,713 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 23:23:46,715 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 23:23:46,716 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 23:23:46,717 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 23:23:46,721 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 23:23:46,721 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 23:23:46,721 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 23:23:46,722 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 23:23:46,723 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 23:23:46,724 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 23:23:46,724 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 23:23:46,724 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 23:23:46,725 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 23:23:46,725 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 23:23:46,725 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 23:23:46,726 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 23:23:46,726 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 23:23:46,726 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 23:23:46,727 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 23:23:46,727 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 23:23:46,728 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 23:23:46,728 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 23:23:46,728 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 23:23:46,729 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 23:23:46,729 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 23:23:46,730 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 23:23:46,730 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 23:23:46,730 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 23:23:46,731 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 23:23:46,731 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2023-11-23 23:23:46,731 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 23:23:46,731 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 23:23:46,732 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-23 23:23:46,732 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 23:23:46,732 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-23 23:23:46,732 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-23 23:23:46,733 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 47fde0ba5912e0415b0c299af0f3ae7b3e6a5b956bf726bb77299079d74126b4 [2023-11-23 23:23:46,979 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 23:23:47,008 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 23:23:47,010 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 23:23:47,011 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 23:23:47,012 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 23:23:47,013 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-min-max-inc-dec.wvr.c [2023-11-23 23:23:48,161 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 23:23:48,353 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 23:23:48,354 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-min-max-inc-dec.wvr.c [2023-11-23 23:23:48,362 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/7a91d5944/6ab0adcf1f204f66b2734332a979543e/FLAGd12d394a0 [2023-11-23 23:23:48,372 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/7a91d5944/6ab0adcf1f204f66b2734332a979543e [2023-11-23 23:23:48,374 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 23:23:48,375 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 23:23:48,376 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 23:23:48,376 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 23:23:48,382 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 23:23:48,383 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:23:48" (1/1) ... [2023-11-23 23:23:48,384 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70439bbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:23:48, skipping insertion in model container [2023-11-23 23:23:48,384 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:23:48" (1/1) ... [2023-11-23 23:23:48,415 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 23:23:48,557 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/popl20-min-max-inc-dec.wvr.c[3336,3349] [2023-11-23 23:23:48,571 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 23:23:48,580 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 23:23:48,602 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/popl20-min-max-inc-dec.wvr.c[3336,3349] [2023-11-23 23:23:48,605 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 23:23:48,613 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 23:23:48,613 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 23:23:48,620 INFO L206 MainTranslator]: Completed translation [2023-11-23 23:23:48,620 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:23:48 WrapperNode [2023-11-23 23:23:48,620 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 23:23:48,622 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 23:23:48,622 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 23:23:48,622 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 23:23:48,628 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:23:48" (1/1) ... [2023-11-23 23:23:48,636 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:23:48" (1/1) ... [2023-11-23 23:23:48,659 INFO L138 Inliner]: procedures = 27, calls = 75, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 180 [2023-11-23 23:23:48,659 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 23:23:48,660 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 23:23:48,662 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 23:23:48,662 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 23:23:48,671 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:23:48" (1/1) ... [2023-11-23 23:23:48,671 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:23:48" (1/1) ... [2023-11-23 23:23:48,674 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:23:48" (1/1) ... [2023-11-23 23:23:48,675 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:23:48" (1/1) ... [2023-11-23 23:23:48,682 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:23:48" (1/1) ... [2023-11-23 23:23:48,687 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:23:48" (1/1) ... [2023-11-23 23:23:48,689 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:23:48" (1/1) ... [2023-11-23 23:23:48,690 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:23:48" (1/1) ... [2023-11-23 23:23:48,693 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 23:23:48,694 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 23:23:48,694 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 23:23:48,694 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 23:23:48,695 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:23:48" (1/1) ... [2023-11-23 23:23:48,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 23:23:48,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 23:23:48,738 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 23:23:48,739 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 23:23:48,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 23:23:48,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 23:23:48,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 23:23:48,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 23:23:48,780 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-23 23:23:48,780 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-23 23:23:48,780 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-23 23:23:48,780 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-23 23:23:48,780 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-23 23:23:48,782 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-23 23:23:48,782 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-23 23:23:48,783 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-23 23:23:48,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 23:23:48,783 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2023-11-23 23:23:48,783 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2023-11-23 23:23:48,784 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-23 23:23:48,784 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-23 23:23:48,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 23:23:48,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 23:23:48,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 23:23:48,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 23:23:48,787 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-23 23:23:48,899 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 23:23:48,901 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 23:23:49,283 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 23:23:49,501 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 23:23:49,502 INFO L309 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-23 23:23:49,503 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:23:49 BoogieIcfgContainer [2023-11-23 23:23:49,503 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 23:23:49,506 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 23:23:49,506 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 23:23:49,509 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 23:23:49,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:23:48" (1/3) ... [2023-11-23 23:23:49,510 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d545bc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:23:49, skipping insertion in model container [2023-11-23 23:23:49,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:23:48" (2/3) ... [2023-11-23 23:23:49,512 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d545bc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:23:49, skipping insertion in model container [2023-11-23 23:23:49,512 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:23:49" (3/3) ... [2023-11-23 23:23:49,513 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-min-max-inc-dec.wvr.c [2023-11-23 23:23:49,521 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-23 23:23:49,530 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 23:23:49,531 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 23:23:49,531 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-23 23:23:49,609 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2023-11-23 23:23:49,660 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 23:23:49,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-23 23:23:49,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 23:23:49,662 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-23 23:23:49,688 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-11-23 23:23:49,705 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-23 23:23:49,718 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-11-23 23:23:49,724 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;@7666ba28, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 23:23:49,724 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-23 23:23:50,354 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 3 more)] === [2023-11-23 23:23:50,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 23:23:50,359 INFO L85 PathProgramCache]: Analyzing trace with hash -405914039, now seen corresponding path program 1 times [2023-11-23 23:23:50,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 23:23:50,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177009434] [2023-11-23 23:23:50,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 23:23:50,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 23:23:50,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 23:23:51,166 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 429 trivial. 0 not checked. [2023-11-23 23:23:51,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 23:23:51,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177009434] [2023-11-23 23:23:51,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177009434] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 23:23:51,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 23:23:51,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 23:23:51,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110287101] [2023-11-23 23:23:51,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 23:23:51,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 23:23:51,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 23:23:51,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 23:23:51,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 23:23:51,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 23:23:51,199 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 23:23:51,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 23:23:51,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 23:23:51,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 23:23:51,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 23:23:51,315 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 3 more)] === [2023-11-23 23:23:51,316 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 23:23:51,316 INFO L85 PathProgramCache]: Analyzing trace with hash -274566625, now seen corresponding path program 1 times [2023-11-23 23:23:51,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 23:23:51,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221940776] [2023-11-23 23:23:51,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 23:23:51,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 23:23:51,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 23:23:53,445 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 124 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 23:23:53,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 23:23:53,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221940776] [2023-11-23 23:23:53,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221940776] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 23:23:53,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1346093432] [2023-11-23 23:23:53,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 23:23:53,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 23:23:53,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 23:23:53,474 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 23:23:53,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 23:23:53,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 23:23:53,719 INFO L262 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 23:23:53,727 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 23:23:53,986 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 93 proven. 1 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2023-11-23 23:23:53,987 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 23:23:54,152 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 93 proven. 1 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2023-11-23 23:23:54,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1346093432] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 23:23:54,153 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 23:23:54,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 6, 6] total 48 [2023-11-23 23:23:54,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895485644] [2023-11-23 23:23:54,154 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 23:23:54,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2023-11-23 23:23:54,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 23:23:54,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2023-11-23 23:23:54,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=266, Invalid=2086, Unknown=0, NotChecked=0, Total=2352 [2023-11-23 23:23:54,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 23:23:54,160 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 23:23:54,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 4.448979591836735) internal successors, (218), 48 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 23:23:54,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 23:23:54,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 23:23:54,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 23:23:54,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 23:23:54,649 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 23:23:54,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-23 23:23:54,848 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 3 more)] === [2023-11-23 23:23:54,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 23:23:54,849 INFO L85 PathProgramCache]: Analyzing trace with hash -497764087, now seen corresponding path program 2 times [2023-11-23 23:23:54,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 23:23:54,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340268205] [2023-11-23 23:23:54,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 23:23:54,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 23:23:54,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 23:23:56,586 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 124 proven. 308 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 23:23:56,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 23:23:56,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340268205] [2023-11-23 23:23:56,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340268205] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 23:23:56,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1927783831] [2023-11-23 23:23:56,587 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 23:23:56,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 23:23:56,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 23:23:56,589 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 23:23:56,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 23:23:56,738 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-23 23:23:56,738 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 23:23:56,740 INFO L262 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-23 23:23:56,744 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 23:23:56,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 23:23:56,880 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-23 23:23:56,913 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-23 23:23:57,127 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 432 trivial. 0 not checked. [2023-11-23 23:23:57,128 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 23:23:57,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1927783831] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 23:23:57,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 23:23:57,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [41] total 47 [2023-11-23 23:23:57,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906039796] [2023-11-23 23:23:57,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 23:23:57,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 23:23:57,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 23:23:57,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 23:23:57,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=2028, Unknown=0, NotChecked=0, Total=2256 [2023-11-23 23:23:57,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 23:23:57,132 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 23:23:57,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 23:23:57,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 23:23:57,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-23 23:23:57,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 23:24:00,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 23:24:00,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 23:24:00,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 23:24:00,853 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 23:24:01,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 23:24:01,051 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 3 more)] === [2023-11-23 23:24:01,051 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 23:24:01,052 INFO L85 PathProgramCache]: Analyzing trace with hash -458540150, now seen corresponding path program 3 times [2023-11-23 23:24:01,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 23:24:01,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250691645] [2023-11-23 23:24:01,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 23:24:01,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 23:24:01,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 23:24:02,684 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 113 proven. 294 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 23:24:02,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 23:24:02,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250691645] [2023-11-23 23:24:02,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250691645] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 23:24:02,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2087210956] [2023-11-23 23:24:02,685 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-23 23:24:02,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 23:24:02,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 23:24:02,687 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 23:24:02,699 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 23:24:02,841 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-11-23 23:24:02,842 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 23:24:02,843 INFO L262 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-23 23:24:02,847 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 23:24:02,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 23:24:02,983 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-23 23:24:03,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 23:24:03,027 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-23 23:24:03,060 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-23 23:24:03,209 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2023-11-23 23:24:03,210 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 23:24:03,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2087210956] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 23:24:03,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 23:24:03,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [40] total 47 [2023-11-23 23:24:03,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805255119] [2023-11-23 23:24:03,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 23:24:03,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 23:24:03,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 23:24:03,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 23:24:03,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=217, Invalid=2039, Unknown=0, NotChecked=0, Total=2256 [2023-11-23 23:24:03,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 23:24:03,214 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 23:24:03,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 23:24:03,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 23:24:03,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-23 23:24:03,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-23 23:24:03,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 23:24:05,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 23:24:05,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 23:24:05,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 23:24:05,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 23:24:05,137 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 23:24:05,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 23:24:05,337 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 3 more)] === [2023-11-23 23:24:05,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 23:24:05,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1473202619, now seen corresponding path program 4 times [2023-11-23 23:24:05,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 23:24:05,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611872069] [2023-11-23 23:24:05,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 23:24:05,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 23:24:05,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 23:24:06,261 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 47 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 23:24:06,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 23:24:06,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611872069] [2023-11-23 23:24:06,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611872069] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 23:24:06,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1946249504] [2023-11-23 23:24:06,262 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-23 23:24:06,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 23:24:06,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 23:24:06,263 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 23:24:06,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-23 23:24:06,468 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-23 23:24:06,469 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 23:24:06,470 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-23 23:24:06,473 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 23:24:06,906 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 109 proven. 70 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-23 23:24:06,906 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 23:24:07,080 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 115 proven. 27 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-11-23 23:24:07,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1946249504] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 23:24:07,081 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 23:24:07,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 13, 7] total 47 [2023-11-23 23:24:07,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141061615] [2023-11-23 23:24:07,082 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 23:24:07,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2023-11-23 23:24:07,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 23:24:07,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2023-11-23 23:24:07,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=1967, Unknown=0, NotChecked=0, Total=2162 [2023-11-23 23:24:07,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 23:24:07,085 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 23:24:07,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 4.8936170212765955) internal successors, (230), 47 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 23:24:07,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 23:24:07,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-23 23:24:07,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-23 23:24:07,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-23 23:24:07,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 23:24:25,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 23:24:25,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 23:24:25,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 23:24:25,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 23:24:25,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-11-23 23:24:25,459 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-23 23:24:25,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 23:24:25,648 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 3 more)] === [2023-11-23 23:24:25,649 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 23:24:25,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1159467117, now seen corresponding path program 5 times [2023-11-23 23:24:25,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 23:24:25,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549063256] [2023-11-23 23:24:25,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 23:24:25,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 23:24:25,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 23:24:28,453 INFO L134 CoverageAnalysis]: Checked inductivity of 916 backedges. 308 proven. 608 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 23:24:28,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 23:24:28,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549063256] [2023-11-23 23:24:28,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549063256] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 23:24:28,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1034574393] [2023-11-23 23:24:28,455 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-23 23:24:28,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 23:24:28,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 23:24:28,460 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 23:24:28,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-23 23:25:21,760 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2023-11-23 23:25:21,761 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 23:25:21,787 INFO L262 TraceCheckSpWp]: Trace formula consists of 666 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-23 23:25:21,791 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 23:25:22,191 INFO L134 CoverageAnalysis]: Checked inductivity of 916 backedges. 408 proven. 6 refuted. 0 times theorem prover too weak. 502 trivial. 0 not checked. [2023-11-23 23:25:22,192 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 23:25:22,593 INFO L134 CoverageAnalysis]: Checked inductivity of 916 backedges. 408 proven. 6 refuted. 0 times theorem prover too weak. 502 trivial. 0 not checked. [2023-11-23 23:25:22,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1034574393] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 23:25:22,594 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 23:25:22,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 10, 10] total 74 [2023-11-23 23:25:22,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396072776] [2023-11-23 23:25:22,594 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 23:25:22,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2023-11-23 23:25:22,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 23:25:22,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2023-11-23 23:25:22,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=630, Invalid=4920, Unknown=0, NotChecked=0, Total=5550 [2023-11-23 23:25:22,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 23:25:22,599 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 23:25:22,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 75 states have (on average 4.373333333333333) internal successors, (328), 74 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 23:25:22,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 23:25:22,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-23 23:25:22,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-23 23:25:22,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-23 23:25:22,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2023-11-23 23:25:22,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 23:25:33,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 23:25:33,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 23:25:33,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 23:25:33,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 23:25:33,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-11-23 23:25:33,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 23:25:33,844 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-23 23:25:34,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 23:25:34,030 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 3 more)] === [2023-11-23 23:25:34,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 23:25:34,031 INFO L85 PathProgramCache]: Analyzing trace with hash 781846743, now seen corresponding path program 6 times [2023-11-23 23:25:34,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 23:25:34,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99544058] [2023-11-23 23:25:34,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 23:25:34,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 23:25:34,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 23:25:36,514 INFO L134 CoverageAnalysis]: Checked inductivity of 920 backedges. 308 proven. 612 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 23:25:36,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 23:25:36,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99544058] [2023-11-23 23:25:36,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99544058] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 23:25:36,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [777073010] [2023-11-23 23:25:36,515 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-23 23:25:36,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 23:25:36,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 23:25:36,519 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 23:25:36,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-23 23:25:36,844 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2023-11-23 23:25:36,844 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 23:25:36,846 INFO L262 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 23:25:36,849 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 23:25:37,083 INFO L134 CoverageAnalysis]: Checked inductivity of 920 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 920 trivial. 0 not checked. [2023-11-23 23:25:37,083 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 23:25:37,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [777073010] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 23:25:37,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 23:25:37,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [59] total 61 [2023-11-23 23:25:37,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347516851] [2023-11-23 23:25:37,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 23:25:37,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 23:25:37,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 23:25:37,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 23:25:37,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=504, Invalid=3278, Unknown=0, NotChecked=0, Total=3782 [2023-11-23 23:25:37,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 23:25:37,086 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 23:25:37,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 23:25:37,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 23:25:37,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-23 23:25:37,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-23 23:25:37,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-23 23:25:37,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2023-11-23 23:25:37,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-23 23:25:37,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 23:25:51,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 23:25:51,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 23:25:51,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 23:25:51,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 23:25:51,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-11-23 23:25:51,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 23:25:51,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 23:25:51,302 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-23 23:25:51,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-23 23:25:51,492 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-23 23:25:51,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 23:25:51,493 INFO L85 PathProgramCache]: Analyzing trace with hash -95527051, now seen corresponding path program 7 times [2023-11-23 23:25:51,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 23:25:51,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726100953] [2023-11-23 23:25:51,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 23:25:51,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 23:25:51,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 23:25:53,980 INFO L134 CoverageAnalysis]: Checked inductivity of 920 backedges. 308 proven. 612 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 23:25:53,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 23:25:53,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726100953] [2023-11-23 23:25:53,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726100953] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 23:25:53,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [804135023] [2023-11-23 23:25:53,981 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-23 23:25:53,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 23:25:53,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 23:25:53,984 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 23:25:53,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-23 23:25:54,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 23:25:54,222 INFO L262 TraceCheckSpWp]: Trace formula consists of 675 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-23 23:25:54,224 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 23:25:54,717 INFO L134 CoverageAnalysis]: Checked inductivity of 920 backedges. 467 proven. 10 refuted. 0 times theorem prover too weak. 443 trivial. 0 not checked. [2023-11-23 23:25:54,717 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 23:25:55,188 INFO L134 CoverageAnalysis]: Checked inductivity of 920 backedges. 467 proven. 10 refuted. 0 times theorem prover too weak. 443 trivial. 0 not checked. [2023-11-23 23:25:55,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [804135023] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 23:25:55,188 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 23:25:55,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [59, 12, 12] total 79 [2023-11-23 23:25:55,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884227855] [2023-11-23 23:25:55,189 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 23:25:55,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 80 states [2023-11-23 23:25:55,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 23:25:55,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2023-11-23 23:25:55,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=696, Invalid=5624, Unknown=0, NotChecked=0, Total=6320 [2023-11-23 23:25:55,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 23:25:55,193 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 23:25:55,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 80 states, 80 states have (on average 4.3625) internal successors, (349), 79 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 23:25:55,193 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 23:25:55,193 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-23 23:25:55,193 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-23 23:25:55,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-23 23:25:55,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2023-11-23 23:25:55,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-23 23:25:55,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-23 23:25:55,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.