./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/mult-dist.wvr.c --full-output --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking COUNTEREXAMPLE --traceabstraction.criterion.for.conditional.commutativity.checking DEFAULT --traceabstraction.tracecheck.mode.for.conditional.commutativity GENERATOR_WITH_CONTEXT -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b86fb0b7 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/weaver/mult-dist.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 c31f1603fd15e011308b2e8fcd1cd45b23f0b00ac0b8b466c4f212460081639c --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking COUNTEREXAMPLE --traceabstraction.criterion.for.conditional.commutativity.checking DEFAULT --traceabstraction.tracecheck.mode.for.conditional.commutativity GENERATOR_WITH_CONTEXT -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.conditional-comm-b86fb0b-m [2024-10-17 05:04:12,143 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-17 05:04:12,197 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-10-17 05:04:12,200 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-17 05:04:12,201 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-17 05:04:12,215 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-17 05:04:12,215 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-17 05:04:12,215 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-17 05:04:12,216 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-17 05:04:12,217 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-17 05:04:12,218 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-17 05:04:12,218 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-17 05:04:12,218 INFO L153 SettingsManager]: * Use SBE=true [2024-10-17 05:04:12,219 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-17 05:04:12,220 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-17 05:04:12,220 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-17 05:04:12,220 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-17 05:04:12,220 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-17 05:04:12,220 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-17 05:04:12,221 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-17 05:04:12,221 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-17 05:04:12,223 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-17 05:04:12,223 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-17 05:04:12,223 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-17 05:04:12,223 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-17 05:04:12,223 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-17 05:04:12,223 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-17 05:04:12,223 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-17 05:04:12,224 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-17 05:04:12,224 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-17 05:04:12,224 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-17 05:04:12,224 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-17 05:04:12,224 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-17 05:04:12,224 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-10-17 05:04:12,224 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-17 05:04:12,224 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-17 05:04:12,225 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-17 05:04:12,225 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-17 05:04:12,225 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-17 05:04:12,225 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-17 05:04:12,225 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-17 05:04:12,227 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 -> c31f1603fd15e011308b2e8fcd1cd45b23f0b00ac0b8b466c4f212460081639c Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional conditional commutativity checking -> COUNTEREXAMPLE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Criterion for conditional commutativity checking -> DEFAULT Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: TraceCheck mode for conditional commutativity -> GENERATOR_WITH_CONTEXT [2024-10-17 05:04:12,466 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-17 05:04:12,485 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-17 05:04:12,489 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-17 05:04:12,490 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-17 05:04:12,490 INFO L274 PluginConnector]: CDTParser initialized [2024-10-17 05:04:12,491 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/mult-dist.wvr.c [2024-10-17 05:04:13,733 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-17 05:04:13,886 INFO L384 CDTParser]: Found 1 translation units. [2024-10-17 05:04:13,887 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/mult-dist.wvr.c [2024-10-17 05:04:13,893 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/cf9759af8/3846195500424d4a9358599648254d45/FLAGd451136fe [2024-10-17 05:04:14,289 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/cf9759af8/3846195500424d4a9358599648254d45 [2024-10-17 05:04:14,291 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-17 05:04:14,293 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-17 05:04:14,294 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-17 05:04:14,295 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-17 05:04:14,299 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-17 05:04:14,299 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:04:14" (1/1) ... [2024-10-17 05:04:14,300 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b67211 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:04:14, skipping insertion in model container [2024-10-17 05:04:14,300 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:04:14" (1/1) ... [2024-10-17 05:04:14,320 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-17 05:04:14,503 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/mult-dist.wvr.c[2155,2168] [2024-10-17 05:04:14,508 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-17 05:04:14,516 INFO L200 MainTranslator]: Completed pre-run [2024-10-17 05:04:14,536 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/mult-dist.wvr.c[2155,2168] [2024-10-17 05:04:14,538 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-17 05:04:14,557 INFO L204 MainTranslator]: Completed translation [2024-10-17 05:04:14,557 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:04:14 WrapperNode [2024-10-17 05:04:14,557 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-17 05:04:14,558 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-17 05:04:14,558 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-17 05:04:14,558 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-17 05:04:14,564 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:04:14" (1/1) ... [2024-10-17 05:04:14,569 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:04:14" (1/1) ... [2024-10-17 05:04:14,583 INFO L138 Inliner]: procedures = 21, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 54 [2024-10-17 05:04:14,584 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-17 05:04:14,584 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-17 05:04:14,585 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-17 05:04:14,585 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-17 05:04:14,592 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:04:14" (1/1) ... [2024-10-17 05:04:14,592 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:04:14" (1/1) ... [2024-10-17 05:04:14,593 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:04:14" (1/1) ... [2024-10-17 05:04:14,594 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:04:14" (1/1) ... [2024-10-17 05:04:14,596 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:04:14" (1/1) ... [2024-10-17 05:04:14,599 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:04:14" (1/1) ... [2024-10-17 05:04:14,600 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:04:14" (1/1) ... [2024-10-17 05:04:14,601 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:04:14" (1/1) ... [2024-10-17 05:04:14,602 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-17 05:04:14,603 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-17 05:04:14,603 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-17 05:04:14,603 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-17 05:04:14,604 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:04:14" (1/1) ... [2024-10-17 05:04:14,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-17 05:04:14,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 05:04:14,637 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-10-17 05:04:14,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-10-17 05:04:14,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-17 05:04:14,676 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-17 05:04:14,676 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-17 05:04:14,676 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-17 05:04:14,676 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-17 05:04:14,676 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-17 05:04:14,676 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-17 05:04:14,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-17 05:04:14,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-17 05:04:14,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-17 05:04:14,678 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-17 05:04:14,752 INFO L238 CfgBuilder]: Building ICFG [2024-10-17 05:04:14,754 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-17 05:04:14,928 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-17 05:04:14,928 INFO L287 CfgBuilder]: Performing block encoding [2024-10-17 05:04:15,043 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-17 05:04:15,043 INFO L314 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-17 05:04:15,043 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:04:15 BoogieIcfgContainer [2024-10-17 05:04:15,043 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-17 05:04:15,045 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-17 05:04:15,046 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-17 05:04:15,048 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-17 05:04:15,049 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 05:04:14" (1/3) ... [2024-10-17 05:04:15,049 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1503aa40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:04:15, skipping insertion in model container [2024-10-17 05:04:15,049 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:04:14" (2/3) ... [2024-10-17 05:04:15,049 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1503aa40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:04:15, skipping insertion in model container [2024-10-17 05:04:15,050 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:04:15" (3/3) ... [2024-10-17 05:04:15,051 INFO L112 eAbstractionObserver]: Analyzing ICFG mult-dist.wvr.c [2024-10-17 05:04:15,068 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-17 05:04:15,069 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-17 05:04:15,069 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-17 05:04:15,121 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-17 05:04:15,160 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-17 05:04:15,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-17 05:04:15,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 05:04:15,162 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-17 05:04:15,162 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-10-17 05:04:15,232 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-17 05:04:15,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 05:04:15,249 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-17 05:04:15,254 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@17d1f7af, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=COUNTEREXAMPLE, mConComCheckerCriterion=DEFAULT, mConComCheckerTraceCheckMode=GENERATOR_WITH_CONTEXT, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-10-17 05:04:15,254 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-17 05:04:15,720 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-17 05:04:15,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 05:04:15,723 INFO L85 PathProgramCache]: Analyzing trace with hash 465831969, now seen corresponding path program 1 times [2024-10-17 05:04:15,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 05:04:15,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087734468] [2024-10-17 05:04:15,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 05:04:15,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 05:04:15,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 05:04:16,399 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 05:04:16,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 05:04:16,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087734468] [2024-10-17 05:04:16,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087734468] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 05:04:16,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [498139784] [2024-10-17 05:04:16,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 05:04:16,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 05:04:16,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 05:04:16,413 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-17 05:04:16,415 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-17 05:04:16,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 05:04:16,492 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-17 05:04:16,500 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 05:04:16,698 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 05:04:16,698 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 05:04:17,184 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 05:04:17,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [498139784] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 05:04:17,184 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 05:04:17,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-10-17 05:04:17,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150840889] [2024-10-17 05:04:17,187 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 05:04:17,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-10-17 05:04:17,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 05:04:17,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-10-17 05:04:17,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=374, Unknown=0, NotChecked=0, Total=462 [2024-10-17 05:04:17,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 05:04:17,214 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 05:04:17,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 1.8181818181818181) internal successors, (40), 22 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 05:04:17,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 05:04:19,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-17 05:04:19,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-17 05:04:19,970 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-17 05:04:20,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-10-17 05:04:20,158 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-17 05:04:20,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 05:04:20,159 INFO L85 PathProgramCache]: Analyzing trace with hash 571738369, now seen corresponding path program 1 times [2024-10-17 05:04:20,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 05:04:20,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211451746] [2024-10-17 05:04:20,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 05:04:20,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 05:04:20,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 05:04:21,001 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 05:04:21,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 05:04:21,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211451746] [2024-10-17 05:04:21,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211451746] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 05:04:21,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1666598983] [2024-10-17 05:04:21,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 05:04:21,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 05:04:21,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 05:04:21,004 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-17 05:04:21,005 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-17 05:04:21,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 05:04:21,122 INFO L255 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-10-17 05:04:21,124 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 05:04:22,927 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 05:04:22,927 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 05:04:31,689 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 05:04:31,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1666598983] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 05:04:31,691 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 05:04:31,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 37 [2024-10-17 05:04:31,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954661144] [2024-10-17 05:04:31,691 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 05:04:31,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-10-17 05:04:31,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 05:04:31,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-10-17 05:04:31,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=1101, Unknown=3, NotChecked=0, Total=1332 [2024-10-17 05:04:31,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 05:04:31,694 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 05:04:31,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 1.4864864864864864) internal successors, (55), 37 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 05:04:31,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-10-17 05:04:31,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 05:04:37,512 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (mod (+ c_thread1Thread1of1ForFork2_~i~0 1) 4294967296))) (let ((.cse28 (mod c_~a~0 4294967296)) (.cse3 (mod c_~b~0 4294967296)) (.cse15 (mod (+ 2 c_thread3Thread1of1ForFork1_~i~2) 4294967296)) (.cse12 (mod (+ c_thread2Thread1of1ForFork0_~i~1 1) 4294967296)) (.cse27 (mod (+ c_thread1Thread1of1ForFork2_~i~0 4) 4294967296)) (.cse31 (mod c_thread3Thread1of1ForFork1_~i~2 4294967296)) (.cse33 (mod (+ c_thread2Thread1of1ForFork0_~i~1 2) 4294967296)) (.cse32 (+ (mod c_thread1Thread1of1ForFork2_~i~0 4294967296) 1)) (.cse1 (mod (+ c_thread3Thread1of1ForFork1_~i~2 1) 4294967296)) (.cse29 (+ .cse2 1)) (.cse21 (mod c_thread2Thread1of1ForFork0_~i~1 4294967296)) (.cse8 (mod (+ c_thread1Thread1of1ForFork2_~i~0 2) 4294967296)) (.cse34 (mod (+ c_thread2Thread1of1ForFork0_~i~1 3) 4294967296)) (.cse26 (mod (+ c_thread1Thread1of1ForFork2_~i~0 3) 4294967296))) (let ((.cse9 (+ .cse34 .cse26)) (.cse19 (+ .cse21 2 .cse8)) (.cse17 (< .cse26 .cse29)) (.cse16 (+ .cse1 1)) (.cse6 (< .cse8 .cse32)) (.cse22 (+ .cse33 .cse8)) (.cse7 (+ .cse31 1)) (.cse13 (+ .cse34 .cse27)) (.cse14 (+ .cse12 .cse26)) (.cse10 (+ 4294967297 .cse1)) (.cse11 (+ .cse15 4294967294)) (.cse20 (+ 4294967294 .cse1)) (.cse30 (+ .cse21 .cse8)) (.cse18 (+ .cse33 .cse26)) (.cse5 (+ 4294967297 .cse31)) (.cse0 (< .cse12 .cse3)) (.cse23 (< .cse2 .cse28)) (.cse24 (< .cse28 .cse32)) (.cse25 (< .cse31 (mod (+ c_~b~0 c_~a~0) 4294967296)))) (and (or .cse0 (let ((.cse4 (+ .cse8 .cse3))) (and (or (< (+ 4294967295 .cse1) (+ .cse2 .cse3)) (< .cse4 .cse5)) (or .cse6 (< .cse4 .cse7) (< .cse1 (+ .cse2 .cse3 1)))))) (or (< .cse9 .cse10) (< .cse11 (+ .cse8 .cse12))) (or (< .cse13 4294967298) (< 4294967296 .cse14)) (or (< .cse15 (+ 2 .cse8 .cse12)) (< .cse9 .cse16) .cse17) (or (< .cse18 .cse7) .cse17 (< .cse1 .cse19)) (or (< .cse20 (+ .cse21 .cse2)) (< .cse22 .cse5)) (or (< .cse15 .cse19) (< .cse18 .cse16) .cse17) (or .cse23 .cse24 (< .cse21 .cse3) .cse25) (or (< .cse15 (+ 2 .cse12 .cse26)) (< .cse27 (+ .cse8 1)) (< .cse13 .cse16)) (or .cse6 (< .cse1 (+ .cse21 2 .cse2)) (< .cse22 .cse7)) (= c_thread1Thread1of1ForFork2_~i~0 0) (or (< .cse13 .cse10) (< .cse11 .cse14)) (or (< .cse8 .cse28) .cse0 (< .cse28 .cse29) .cse24 .cse25) (or (< .cse18 .cse10) (< .cse11 .cse30)) (or (< .cse20 .cse30) (< .cse18 .cse5)) (or .cse0 .cse23 .cse24 .cse25))))) is different from false [2024-10-17 05:06:28,515 WARN L286 SmtUtils]: Spent 1.75m on a formula simplification. DAG size of input: 120 DAG size of output: 119 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-10-17 05:08:23,739 WARN L286 SmtUtils]: Spent 1.79m on a formula simplification. DAG size of input: 104 DAG size of output: 103 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-10-17 05:08:34,993 WARN L286 SmtUtils]: Spent 8.20s on a formula simplification. DAG size of input: 131 DAG size of output: 132 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-10-17 05:09:03,935 WARN L286 SmtUtils]: Spent 23.94s on a formula simplification. DAG size of input: 142 DAG size of output: 137 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-10-17 05:09:14,595 WARN L286 SmtUtils]: Spent 5.03s on a formula simplification that was a NOOP. DAG size: 68 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-10-17 05:09:24,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-17 05:09:29,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-17 05:09:31,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-17 05:09:33,262 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-17 05:09:36,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-17 05:09:42,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-17 05:09:44,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-17 05:09:45,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-17 05:09:45,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-10-17 05:09:45,230 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-17 05:09:45,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 05:09:45,418 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-17 05:09:45,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 05:09:45,418 INFO L85 PathProgramCache]: Analyzing trace with hash 919442113, now seen corresponding path program 2 times [2024-10-17 05:09:45,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 05:09:45,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613002515] [2024-10-17 05:09:45,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 05:09:45,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 05:09:45,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 05:09:46,909 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 05:09:46,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 05:09:46,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613002515] [2024-10-17 05:09:46,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613002515] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 05:09:46,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [760506840] [2024-10-17 05:09:46,910 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-17 05:09:46,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 05:09:46,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 05:09:46,912 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-17 05:09:46,913 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-17 05:09:47,013 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-17 05:09:47,013 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 05:09:47,015 INFO L255 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 55 conjuncts are in the unsatisfiable core [2024-10-17 05:09:47,017 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 05:09:49,886 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 05:09:49,886 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 05:10:46,107 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 82 refuted. 3 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 05:10:46,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [760506840] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 05:10:46,108 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 05:10:46,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28, 28] total 67 [2024-10-17 05:10:46,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483041569] [2024-10-17 05:10:46,108 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 05:10:46,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2024-10-17 05:10:46,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 05:10:46,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2024-10-17 05:10:46,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=832, Invalid=3574, Unknown=16, NotChecked=0, Total=4422 [2024-10-17 05:10:46,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 05:10:46,111 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 05:10:46,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 1.2686567164179106) internal successors, (85), 67 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 05:10:46,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-10-17 05:10:46,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2024-10-17 05:10:46,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 05:11:15,074 WARN L286 SmtUtils]: Spent 23.80s on a formula simplification. DAG size of input: 118 DAG size of output: 91 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-10-17 05:11:17,194 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse8 (mod c_thread2Thread1of1ForFork0_~i~1 4294967296))) (let ((.cse38 (mod (+ c_thread1Thread1of1ForFork2_~i~0 3) 4294967296)) (.cse23 (mod (+ c_thread1Thread1of1ForFork2_~i~0 2) 4294967296)) (.cse28 (mod (+ c_thread2Thread1of1ForFork0_~i~1 2) 4294967296)) (.cse12 (mod (+ c_thread1Thread1of1ForFork2_~i~0 1) 4294967296)) (.cse24 (mod c_~a~0 4294967296)) (.cse5 (mod (+ c_thread2Thread1of1ForFork0_~i~1 4) 4294967296)) (.cse29 (mod (+ 5 c_thread1Thread1of1ForFork2_~i~0) 4294967296)) (.cse21 (mod (+ c_thread1Thread1of1ForFork2_~i~0 6) 4294967296)) (.cse22 (mod (+ c_thread2Thread1of1ForFork0_~i~1 5) 4294967296)) (.cse15 (mod c_thread3Thread1of1ForFork1_~i~2 4294967296)) (.cse6 (+ .cse8 1)) (.cse34 (mod (+ c_thread2Thread1of1ForFork0_~i~1 1) 4294967296)) (.cse13 (mod c_~b~0 4294967296)) (.cse18 (mod (+ c_thread2Thread1of1ForFork0_~i~1 6) 4294967296))) (let ((.cse16 (+ (mod (+ 7 c_thread1Thread1of1ForFork2_~i~0) 4294967296) .cse18)) (.cse20 (mod (+ 6 c_thread3Thread1of1ForFork1_~i~2) 4294967296)) (.cse9 (< .cse34 .cse13)) (.cse10 (< .cse13 .cse6)) (.cse25 (< .cse15 (mod (+ c_~b~0 c_~a~0) 4294967296))) (.cse27 (+ .cse21 .cse22)) (.cse2 (mod (+ c_thread3Thread1of1ForFork1_~i~2 4) 4294967296)) (.cse0 (+ .cse5 .cse29)) (.cse17 (mod (+ 5 c_thread3Thread1of1ForFork1_~i~2) 4294967296)) (.cse31 (< .cse12 .cse24)) (.cse32 (< .cse24 (+ (mod c_thread1Thread1of1ForFork2_~i~0 4294967296) 1))) (.cse1 (mod (+ 3 c_thread3Thread1of1ForFork1_~i~2) 4294967296)) (.cse4 (mod (+ c_thread1Thread1of1ForFork2_~i~0 4) 4294967296)) (.cse19 (+ .cse28 1)) (.cse3 (mod (+ c_thread2Thread1of1ForFork0_~i~1 3) 4294967296)) (.cse14 (+ .cse23 .cse13)) (.cse37 (mod (+ 2 c_thread3Thread1of1ForFork1_~i~2) 4294967296)) (.cse35 (+ .cse13 .cse38)) (.cse11 (mod (+ c_thread3Thread1of1ForFork1_~i~2 1) 4294967296)) (.cse30 (+ .cse34 1))) (and (or (< .cse0 (+ .cse1 1)) (< .cse2 (+ 2 .cse3 .cse4)) (< .cse5 .cse6)) (let ((.cse7 (+ .cse2 4294967294))) (or (< .cse7 (+ .cse3 .cse4)) (< .cse7 (+ .cse8 .cse4)) (< .cse0 (+ .cse1 4294967297)))) (or .cse9 .cse10 (and (or (< (+ 4294967295 .cse11) (+ .cse12 .cse13)) (< .cse14 (+ 4294967297 .cse15))) (or (< .cse14 (+ .cse15 1)) (< .cse11 (+ .cse12 .cse13 1))))) (or (< .cse16 (+ .cse17 1)) (< .cse18 .cse19) (< .cse20 (+ .cse21 2 .cse22))) (or (< .cse23 .cse24) .cse9 (< .cse24 (+ .cse12 1)) .cse10 .cse25) (let ((.cse26 (+ 4294967294 .cse20))) (or (< .cse16 (+ .cse17 4294967297)) (< .cse26 .cse27) (< .cse26 (+ .cse21 .cse28)))) (or (< .cse17 (+ .cse5 2 .cse29)) (< .cse22 .cse30) (< .cse27 (+ .cse2 1))) (or .cse9 .cse31 .cse10 .cse32 .cse25) (let ((.cse33 (+ .cse17 4294967294))) (or (< .cse33 (+ .cse29 .cse34)) (< .cse27 (+ .cse2 4294967297)) (< .cse33 .cse0))) (or .cse31 .cse32 (< .cse8 .cse13)) (or (let ((.cse36 (+ .cse4 .cse13))) (and (or (< (+ .cse1 4294967295) .cse35) (< .cse36 (+ .cse37 4294967297))) (or (< .cse1 (+ .cse13 1 .cse38)) (< .cse36 (+ .cse37 1))))) (< .cse13 .cse19) (< .cse3 .cse13)) (or (and (or (< (+ .cse37 4294967295) .cse14) (< .cse35 (+ 4294967297 .cse11))) (or (< .cse37 (+ .cse23 .cse13 1)) (< .cse35 (+ .cse11 1)))) (< .cse13 .cse30) (< .cse28 .cse13)))))) is different from false Killed by 15