./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_20-callback_racefree.i --full-output --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking COUNTEREXAMPLE --traceabstraction.criterion.for.conditional.commutativity.checking SLEEP_SET -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/goblint-regression/28-race_reach_20-callback_racefree.i -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 4e91816f101a416d37c086dd7185cfb4e2bfa63eb286e4a418cb94db27cf2f6f --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking COUNTEREXAMPLE --traceabstraction.criterion.for.conditional.commutativity.checking SLEEP_SET -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 11:32:29,066 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-17 11:32:29,155 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-10-17 11:32:29,160 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-17 11:32:29,161 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-17 11:32:29,202 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-17 11:32:29,204 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-17 11:32:29,204 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-17 11:32:29,205 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-17 11:32:29,206 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-17 11:32:29,206 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-17 11:32:29,207 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-17 11:32:29,207 INFO L153 SettingsManager]: * Use SBE=true [2024-10-17 11:32:29,209 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-17 11:32:29,210 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-17 11:32:29,210 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-17 11:32:29,210 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-17 11:32:29,210 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-17 11:32:29,211 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-17 11:32:29,211 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-17 11:32:29,211 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-17 11:32:29,215 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-17 11:32:29,215 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-17 11:32:29,216 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-17 11:32:29,216 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-17 11:32:29,216 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-17 11:32:29,217 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-17 11:32:29,217 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-17 11:32:29,217 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-17 11:32:29,217 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-17 11:32:29,217 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-17 11:32:29,218 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-17 11:32:29,218 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-17 11:32:29,218 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-10-17 11:32:29,218 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-17 11:32:29,219 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-17 11:32:29,219 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-17 11:32:29,220 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-17 11:32:29,221 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-17 11:32:29,221 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-17 11:32:29,221 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-17 11:32:29,222 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e91816f101a416d37c086dd7185cfb4e2bfa63eb286e4a418cb94db27cf2f6f Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional conditional commutativity checking -> COUNTEREXAMPLE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Criterion for conditional commutativity checking -> SLEEP_SET [2024-10-17 11:32:29,484 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-17 11:32:29,512 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-17 11:32:29,517 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-17 11:32:29,518 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-17 11:32:29,518 INFO L274 PluginConnector]: CDTParser initialized [2024-10-17 11:32:29,520 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_20-callback_racefree.i [2024-10-17 11:32:31,002 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-17 11:32:31,298 INFO L384 CDTParser]: Found 1 translation units. [2024-10-17 11:32:31,301 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_20-callback_racefree.i [2024-10-17 11:32:31,320 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/637591fbf/ac980ed18f1440cca5d00632e4e1b25a/FLAG136028f9b [2024-10-17 11:32:31,338 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/637591fbf/ac980ed18f1440cca5d00632e4e1b25a [2024-10-17 11:32:31,343 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-17 11:32:31,344 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-17 11:32:31,347 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-17 11:32:31,348 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-17 11:32:31,353 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-17 11:32:31,354 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:32:31" (1/1) ... [2024-10-17 11:32:31,355 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@719e16e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:32:31, skipping insertion in model container [2024-10-17 11:32:31,355 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:32:31" (1/1) ... [2024-10-17 11:32:31,406 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-17 11:32:31,757 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_20-callback_racefree.i[30212,30225] [2024-10-17 11:32:31,791 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-17 11:32:31,806 INFO L200 MainTranslator]: Completed pre-run [2024-10-17 11:32:31,847 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_20-callback_racefree.i[30212,30225] [2024-10-17 11:32:31,864 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-17 11:32:31,905 INFO L204 MainTranslator]: Completed translation [2024-10-17 11:32:31,906 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:32:31 WrapperNode [2024-10-17 11:32:31,906 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-17 11:32:31,907 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-17 11:32:31,907 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-17 11:32:31,908 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-17 11:32:31,914 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:32:31" (1/1) ... [2024-10-17 11:32:31,927 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:32:31" (1/1) ... [2024-10-17 11:32:31,954 INFO L138 Inliner]: procedures = 174, calls = 38, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 148 [2024-10-17 11:32:31,954 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-17 11:32:31,955 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-17 11:32:31,955 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-17 11:32:31,955 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-17 11:32:31,964 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:32:31" (1/1) ... [2024-10-17 11:32:31,964 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:32:31" (1/1) ... [2024-10-17 11:32:31,968 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:32:31" (1/1) ... [2024-10-17 11:32:31,968 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:32:31" (1/1) ... [2024-10-17 11:32:31,979 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:32:31" (1/1) ... [2024-10-17 11:32:31,984 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:32:31" (1/1) ... [2024-10-17 11:32:31,989 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:32:31" (1/1) ... [2024-10-17 11:32:31,991 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:32:31" (1/1) ... [2024-10-17 11:32:31,998 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-17 11:32:31,999 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-17 11:32:32,003 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-17 11:32:32,003 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-17 11:32:32,004 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:32:31" (1/1) ... [2024-10-17 11:32:32,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-17 11:32:32,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 11:32:32,038 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 11:32:32,041 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 11:32:32,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-17 11:32:32,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-17 11:32:32,093 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-17 11:32:32,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-17 11:32:32,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-17 11:32:32,093 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-17 11:32:32,093 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-17 11:32:32,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-17 11:32:32,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-17 11:32:32,094 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-17 11:32:32,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-17 11:32:32,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-17 11:32:32,096 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 11:32:32,223 INFO L238 CfgBuilder]: Building ICFG [2024-10-17 11:32:32,225 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-17 11:32:32,491 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-17 11:32:32,492 INFO L287 CfgBuilder]: Performing block encoding [2024-10-17 11:32:32,676 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-17 11:32:32,677 INFO L314 CfgBuilder]: Removed 11 assume(true) statements. [2024-10-17 11:32:32,678 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:32:32 BoogieIcfgContainer [2024-10-17 11:32:32,678 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-17 11:32:32,680 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-17 11:32:32,681 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-17 11:32:32,683 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-17 11:32:32,684 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 11:32:31" (1/3) ... [2024-10-17 11:32:32,684 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69d2e849 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 11:32:32, skipping insertion in model container [2024-10-17 11:32:32,684 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:32:31" (2/3) ... [2024-10-17 11:32:32,685 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69d2e849 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 11:32:32, skipping insertion in model container [2024-10-17 11:32:32,685 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:32:32" (3/3) ... [2024-10-17 11:32:32,686 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_20-callback_racefree.i [2024-10-17 11:32:32,700 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-17 11:32:32,700 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-17 11:32:32,700 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-17 11:32:32,735 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-17 11:32:32,812 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-17 11:32:32,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-17 11:32:32,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 11:32:32,815 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 11:32:32,817 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 11:32:32,931 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-17 11:32:32,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 11:32:32,954 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t_funThread1of1ForFork0 ======== [2024-10-17 11:32:32,965 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;@2029ffc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=COUNTEREXAMPLE, mConComCheckerCriterion=SLEEP_SET, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-10-17 11:32:32,965 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-17 11:32:33,482 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 11:32:33,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 11:32:33,487 INFO L85 PathProgramCache]: Analyzing trace with hash -102613015, now seen corresponding path program 1 times [2024-10-17 11:32:33,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 11:32:33,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101978644] [2024-10-17 11:32:33,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 11:32:33,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 11:32:33,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 11:32:33,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 11:32:33,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 11:32:33,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101978644] [2024-10-17 11:32:33,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101978644] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 11:32:33,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 11:32:33,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-17 11:32:33,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055514100] [2024-10-17 11:32:33,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 11:32:33,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-17 11:32:33,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 11:32:33,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-17 11:32:33,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-17 11:32:33,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:33,939 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 11:32:33,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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 11:32:33,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:34,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 11:32:34,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-17 11:32:34,827 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 11:32:34,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1756166478, now seen corresponding path program 1 times [2024-10-17 11:32:34,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 11:32:34,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 11:32:34,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 11:32:35,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 11:32:35,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 11:32:35,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 11:32:35,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 11:32:35,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 11:32:35,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-17 11:32:35,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-17 11:32:35,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-17 11:32:35,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:35,160 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 11:32:35,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 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 11:32:35,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 11:32:35,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:35,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 11:32:35,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 11:32:35,357 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-17 11:32:35,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,SelfDestructingSolverStorable1 [2024-10-17 11:32:35,371 INFO L414 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-17 11:32:35,376 INFO L312 ceAbstractionStarter]: Result for error location t_funThread1of1ForFork0 was SAFE (1/2) [2024-10-17 11:32:35,381 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-17 11:32:35,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-17 11:32:35,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 11:32:35,403 INFO L229 MonitoredProcess]: Starting monitored process 3 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 11:32:35,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2024-10-17 11:32:35,448 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-17 11:32:35,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 11:32:35,449 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-17 11:32:35,450 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;@2029ffc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=COUNTEREXAMPLE, mConComCheckerCriterion=SLEEP_SET, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-10-17 11:32:35,454 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-17 11:32:35,657 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-17 11:32:35,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 11:32:35,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1113008337, now seen corresponding path program 1 times [2024-10-17 11:32:35,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 11:32:35,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867483977] [2024-10-17 11:32:35,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 11:32:35,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 11:32:35,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 11:32:35,681 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 11:32:35,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 11:32:35,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867483977] [2024-10-17 11:32:35,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867483977] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 11:32:35,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 11:32:35,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-17 11:32:35,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637891144] [2024-10-17 11:32:35,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 11:32:35,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-17 11:32:35,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 11:32:35,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-17 11:32:35,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-17 11:32:35,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:35,685 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 11:32:35,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 11:32:35,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:35,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:35,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-17 11:32:35,755 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-17 11:32:35,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 11:32:35,755 INFO L85 PathProgramCache]: Analyzing trace with hash 173152037, now seen corresponding path program 1 times [2024-10-17 11:32:35,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 11:32:35,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119639963] [2024-10-17 11:32:35,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 11:32:35,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 11:32:35,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 11:32:35,856 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 11:32:35,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 11:32:35,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119639963] [2024-10-17 11:32:35,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119639963] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 11:32:35,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 11:32:35,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-17 11:32:35,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366394828] [2024-10-17 11:32:35,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 11:32:35,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-17 11:32:35,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 11:32:35,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-17 11:32:35,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-17 11:32:35,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:35,860 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 11:32:35,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 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 11:32:35,860 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:35,860 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:35,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:35,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 11:32:35,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-17 11:32:35,928 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-17 11:32:35,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 11:32:35,929 INFO L85 PathProgramCache]: Analyzing trace with hash 548140279, now seen corresponding path program 1 times [2024-10-17 11:32:35,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 11:32:35,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635529963] [2024-10-17 11:32:35,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 11:32:35,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 11:32:35,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-17 11:32:35,957 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-17 11:32:35,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-17 11:32:36,002 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-17 11:32:36,003 INFO L332 BasicCegarLoop]: Counterexample is feasible [2024-10-17 11:32:36,003 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2024-10-17 11:32:36,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-17 11:32:36,006 INFO L414 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-17 11:32:36,010 INFO L312 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (2/2) [2024-10-17 11:32:36,011 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-17 11:32:36,011 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-17 11:32:36,024 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-17 11:32:36,027 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-17 11:32:36,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-17 11:32:36,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 11:32:36,030 INFO L229 MonitoredProcess]: Starting monitored process 4 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 11:32:36,031 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2024-10-17 11:32:36,073 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-17 11:32:36,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 11:32:36,074 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t_funThread1of2ForFork0 ======== [2024-10-17 11:32:36,075 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;@2029ffc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=COUNTEREXAMPLE, mConComCheckerCriterion=SLEEP_SET, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-10-17 11:32:36,075 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-17 11:32:37,405 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 11:32:37,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 11:32:37,406 INFO L85 PathProgramCache]: Analyzing trace with hash 2022852080, now seen corresponding path program 1 times [2024-10-17 11:32:37,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 11:32:37,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009643204] [2024-10-17 11:32:37,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 11:32:37,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 11:32:37,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 11:32:37,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 11:32:37,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 11:32:37,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009643204] [2024-10-17 11:32:37,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009643204] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 11:32:37,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 11:32:37,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-17 11:32:37,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20544770] [2024-10-17 11:32:37,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 11:32:37,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-17 11:32:37,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 11:32:37,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-17 11:32:37,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-17 11:32:37,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:37,473 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 11:32:37,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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 11:32:37,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:39,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 11:32:39,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-17 11:32:39,244 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 11:32:39,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1404665761, now seen corresponding path program 1 times [2024-10-17 11:32:39,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 11:32:39,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 11:32:39,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 11:32:39,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 11:32:39,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 11:32:39,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 11:32:39,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 11:32:39,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 11:32:39,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-17 11:32:39,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-17 11:32:39,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-17 11:32:39,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:39,563 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 11:32:39,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 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 11:32:39,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 11:32:39,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:39,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 11:32:39,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 11:32:39,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,SelfDestructingSolverStorable7 [2024-10-17 11:32:39,820 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 11:32:39,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1240325645, now seen corresponding path program 1 times [2024-10-17 11:32:39,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 11:32:39,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 11:32:39,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 11:32:40,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 11:32:40,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 11:32:40,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 11:32:40,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 11:32:40,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 11:32:40,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-17 11:32:40,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-17 11:32:40,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-17 11:32:40,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:40,071 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 11:32:40,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 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 11:32:40,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 11:32:40,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 11:32:40,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:40,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 11:32:40,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 11:32:40,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 11:32:40,405 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-17 11:32:40,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,SelfDestructingSolverStorable9 [2024-10-17 11:32:40,410 INFO L414 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-17 11:32:40,411 INFO L312 ceAbstractionStarter]: Result for error location t_funThread1of2ForFork0 was SAFE (1/3) [2024-10-17 11:32:40,413 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-17 11:32:40,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-17 11:32:40,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 11:32:40,415 INFO L229 MonitoredProcess]: Starting monitored process 5 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 11:32:40,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (5)] Waiting until timeout for monitored process [2024-10-17 11:32:40,457 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-17 11:32:40,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 11:32:40,458 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-17 11:32:40,459 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;@2029ffc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=COUNTEREXAMPLE, mConComCheckerCriterion=SLEEP_SET, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-10-17 11:32:40,460 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-17 11:32:40,881 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-17 11:32:40,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 11:32:40,882 INFO L85 PathProgramCache]: Analyzing trace with hash 116702993, now seen corresponding path program 1 times [2024-10-17 11:32:40,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 11:32:40,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306101466] [2024-10-17 11:32:40,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 11:32:40,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 11:32:40,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 11:32:40,908 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-17 11:32:40,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 11:32:40,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306101466] [2024-10-17 11:32:40,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306101466] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 11:32:40,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 11:32:40,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-17 11:32:40,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014701594] [2024-10-17 11:32:40,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 11:32:40,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-17 11:32:40,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 11:32:40,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-17 11:32:40,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-17 11:32:40,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:40,912 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 11:32:40,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 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 11:32:40,913 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:41,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:41,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-17 11:32:41,013 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-17 11:32:41,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 11:32:41,013 INFO L85 PathProgramCache]: Analyzing trace with hash 499622458, now seen corresponding path program 1 times [2024-10-17 11:32:41,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 11:32:41,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470388098] [2024-10-17 11:32:41,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 11:32:41,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 11:32:41,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 11:32:41,100 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-17 11:32:41,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 11:32:41,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470388098] [2024-10-17 11:32:41,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470388098] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 11:32:41,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 11:32:41,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-17 11:32:41,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458144613] [2024-10-17 11:32:41,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 11:32:41,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-17 11:32:41,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 11:32:41,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-17 11:32:41,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-17 11:32:41,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:41,104 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 11:32:41,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 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 11:32:41,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:41,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:41,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:41,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 11:32:41,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-17 11:32:41,182 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-17 11:32:41,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 11:32:41,183 INFO L85 PathProgramCache]: Analyzing trace with hash 474130708, now seen corresponding path program 1 times [2024-10-17 11:32:41,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 11:32:41,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172407821] [2024-10-17 11:32:41,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 11:32:41,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 11:32:41,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 11:32:41,255 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 11:32:41,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 11:32:41,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172407821] [2024-10-17 11:32:41,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172407821] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 11:32:41,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 11:32:41,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-17 11:32:41,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133431083] [2024-10-17 11:32:41,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 11:32:41,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-17 11:32:41,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 11:32:41,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-17 11:32:41,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-17 11:32:41,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:41,258 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 11:32:41,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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 11:32:41,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:41,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 11:32:41,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:41,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:41,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 11:32:41,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 11:32:41,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-17 11:32:41,351 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-17 11:32:41,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 11:32:41,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1507847345, now seen corresponding path program 1 times [2024-10-17 11:32:41,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 11:32:41,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589536063] [2024-10-17 11:32:41,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 11:32:41,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 11:32:41,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-17 11:32:41,368 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-17 11:32:41,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-17 11:32:41,385 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-17 11:32:41,386 INFO L332 BasicCegarLoop]: Counterexample is feasible [2024-10-17 11:32:41,386 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2024-10-17 11:32:41,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-17 11:32:41,388 INFO L414 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-17 11:32:41,388 INFO L312 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (2/3) [2024-10-17 11:32:41,389 WARN L239 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-17 11:32:41,389 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-10-17 11:32:41,402 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-17 11:32:41,404 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-17 11:32:41,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-17 11:32:41,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 11:32:41,408 INFO L229 MonitoredProcess]: Starting monitored process 6 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 11:32:41,409 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Waiting until timeout for monitored process [2024-10-17 11:32:41,449 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-17 11:32:41,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 11:32:41,450 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-17 11:32:41,450 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;@2029ffc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=COUNTEREXAMPLE, mConComCheckerCriterion=SLEEP_SET, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-10-17 11:32:41,450 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-17 11:32:42,198 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-17 11:32:42,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 11:32:42,199 INFO L85 PathProgramCache]: Analyzing trace with hash 875035254, now seen corresponding path program 1 times [2024-10-17 11:32:42,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 11:32:42,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197073845] [2024-10-17 11:32:42,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 11:32:42,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 11:32:42,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 11:32:42,217 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-17 11:32:42,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 11:32:42,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197073845] [2024-10-17 11:32:42,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197073845] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 11:32:42,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 11:32:42,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-17 11:32:42,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003588233] [2024-10-17 11:32:42,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 11:32:42,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-17 11:32:42,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 11:32:42,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-17 11:32:42,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-17 11:32:42,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:42,219 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 11:32:42,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 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 11:32:42,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:42,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:42,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-17 11:32:42,365 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-17 11:32:42,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 11:32:42,366 INFO L85 PathProgramCache]: Analyzing trace with hash 9387073, now seen corresponding path program 1 times [2024-10-17 11:32:42,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 11:32:42,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372424172] [2024-10-17 11:32:42,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 11:32:42,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 11:32:42,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 11:32:42,445 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-17 11:32:42,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 11:32:42,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372424172] [2024-10-17 11:32:42,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372424172] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 11:32:42,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 11:32:42,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-17 11:32:42,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940525943] [2024-10-17 11:32:42,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 11:32:42,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-17 11:32:42,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 11:32:42,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-17 11:32:42,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-17 11:32:42,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:42,446 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 11:32:42,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 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 11:32:42,447 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:42,447 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:42,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:42,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 11:32:42,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-17 11:32:42,549 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-17 11:32:42,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 11:32:42,550 INFO L85 PathProgramCache]: Analyzing trace with hash -127061719, now seen corresponding path program 1 times [2024-10-17 11:32:42,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 11:32:42,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056178466] [2024-10-17 11:32:42,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 11:32:42,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 11:32:42,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 11:32:42,629 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-17 11:32:42,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 11:32:42,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056178466] [2024-10-17 11:32:42,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056178466] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 11:32:42,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 11:32:42,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-17 11:32:42,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029081691] [2024-10-17 11:32:42,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 11:32:42,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-17 11:32:42,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 11:32:42,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-17 11:32:42,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-17 11:32:42,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:42,631 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 11:32:42,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 11:32:42,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:42,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 11:32:42,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:42,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:42,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 11:32:42,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 11:32:42,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-17 11:32:42,756 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-17 11:32:42,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 11:32:42,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1572300479, now seen corresponding path program 1 times [2024-10-17 11:32:42,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 11:32:42,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68867849] [2024-10-17 11:32:42,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 11:32:42,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 11:32:42,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 11:32:42,844 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-17 11:32:42,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 11:32:42,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68867849] [2024-10-17 11:32:42,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68867849] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 11:32:42,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 11:32:42,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-17 11:32:42,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906351804] [2024-10-17 11:32:42,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 11:32:42,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-17 11:32:42,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 11:32:42,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-17 11:32:42,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-17 11:32:42,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:42,846 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 11:32:42,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 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 11:32:42,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:42,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 11:32:42,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 11:32:42,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:42,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:42,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 11:32:42,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 11:32:42,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 11:32:42,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-17 11:32:42,954 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-17 11:32:42,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 11:32:42,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1533830532, now seen corresponding path program 1 times [2024-10-17 11:32:42,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 11:32:42,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264643185] [2024-10-17 11:32:42,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 11:32:42,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 11:32:42,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-17 11:32:42,975 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-17 11:32:42,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-17 11:32:43,004 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-17 11:32:43,004 INFO L332 BasicCegarLoop]: Counterexample is feasible [2024-10-17 11:32:43,005 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2024-10-17 11:32:43,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-17 11:32:43,006 INFO L414 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-10-17 11:32:43,007 INFO L312 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (1/4) [2024-10-17 11:32:43,007 WARN L239 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-17 11:32:43,007 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-10-17 11:32:43,022 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-17 11:32:43,025 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-17 11:32:43,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-17 11:32:43,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 11:32:43,027 INFO L229 MonitoredProcess]: Starting monitored process 7 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 11:32:43,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (7)] Waiting until timeout for monitored process [2024-10-17 11:32:43,067 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-17 11:32:43,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 11:32:43,069 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t_funThread4of4ForFork0 ======== [2024-10-17 11:32:43,069 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;@2029ffc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=COUNTEREXAMPLE, mConComCheckerCriterion=SLEEP_SET, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-10-17 11:32:43,069 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-17 11:32:44,577 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 11:32:44,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 11:32:44,578 INFO L85 PathProgramCache]: Analyzing trace with hash 367482747, now seen corresponding path program 1 times [2024-10-17 11:32:44,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 11:32:44,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127078763] [2024-10-17 11:32:44,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 11:32:44,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 11:32:44,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 11:32:44,605 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-17 11:32:44,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 11:32:44,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127078763] [2024-10-17 11:32:44,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127078763] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 11:32:44,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 11:32:44,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-17 11:32:44,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137540364] [2024-10-17 11:32:44,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 11:32:44,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-17 11:32:44,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 11:32:44,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-17 11:32:44,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-17 11:32:44,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:44,607 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 11:32:44,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 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 11:32:44,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:44,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:44,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-17 11:32:44,761 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 11:32:44,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 11:32:44,761 INFO L85 PathProgramCache]: Analyzing trace with hash -857519168, now seen corresponding path program 1 times [2024-10-17 11:32:44,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 11:32:44,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383321769] [2024-10-17 11:32:44,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 11:32:44,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 11:32:44,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 11:32:44,860 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-17 11:32:44,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 11:32:44,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383321769] [2024-10-17 11:32:44,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383321769] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 11:32:44,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 11:32:44,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-17 11:32:44,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151415221] [2024-10-17 11:32:44,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 11:32:44,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-17 11:32:44,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 11:32:44,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-17 11:32:44,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-17 11:32:44,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:44,864 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 11:32:44,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 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 11:32:44,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:44,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:45,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:45,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 11:32:45,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-17 11:32:45,025 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 11:32:45,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 11:32:45,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1638663918, now seen corresponding path program 1 times [2024-10-17 11:32:45,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 11:32:45,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536639867] [2024-10-17 11:32:45,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 11:32:45,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 11:32:45,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 11:32:45,132 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-17 11:32:45,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 11:32:45,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536639867] [2024-10-17 11:32:45,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536639867] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 11:32:45,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 11:32:45,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-17 11:32:45,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653217833] [2024-10-17 11:32:45,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 11:32:45,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-17 11:32:45,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 11:32:45,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-17 11:32:45,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-17 11:32:45,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:45,135 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 11:32:45,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 11:32:45,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:45,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 11:32:45,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:45,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:45,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 11:32:45,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 11:32:45,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-17 11:32:45,258 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 11:32:45,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 11:32:45,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1419770432, now seen corresponding path program 1 times [2024-10-17 11:32:45,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 11:32:45,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900790403] [2024-10-17 11:32:45,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 11:32:45,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 11:32:45,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 11:32:45,350 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-17 11:32:45,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 11:32:45,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900790403] [2024-10-17 11:32:45,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900790403] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 11:32:45,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 11:32:45,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-17 11:32:45,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119173373] [2024-10-17 11:32:45,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 11:32:45,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-17 11:32:45,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 11:32:45,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-17 11:32:45,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-17 11:32:45,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:45,353 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 11:32:45,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 11:32:45,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:45,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 11:32:45,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 11:32:45,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:45,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:45,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 11:32:45,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 11:32:45,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 11:32:45,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-17 11:32:45,494 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 11:32:45,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 11:32:45,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1107787071, now seen corresponding path program 1 times [2024-10-17 11:32:45,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 11:32:45,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259234635] [2024-10-17 11:32:45,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 11:32:45,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 11:32:45,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 11:32:45,604 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-17 11:32:45,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 11:32:45,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259234635] [2024-10-17 11:32:45,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259234635] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 11:32:45,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 11:32:45,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-17 11:32:45,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615061091] [2024-10-17 11:32:45,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 11:32:45,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-17 11:32:45,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 11:32:45,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-17 11:32:45,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-17 11:32:45,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:45,606 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 11:32:45,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 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) [2024-10-17 11:32:45,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:45,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 11:32:45,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 11:32:45,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 11:32:45,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:46,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:46,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 11:32:46,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 11:32:46,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 11:32:46,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 11:32:46,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-17 11:32:46,477 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 11:32:46,567 INFO L85 PathProgramCache]: Analyzing trace with hash 870375824, now seen corresponding path program 1 times [2024-10-17 11:32:46,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 11:32:46,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 11:32:46,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 11:32:46,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 11:32:46,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 11:32:46,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 11:32:46,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 11:32:46,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 11:32:46,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-17 11:32:46,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-17 11:32:46,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-17 11:32:46,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:46,769 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 11:32:46,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 6 states have internal predecessors, (60), 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 11:32:46,769 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:32:46,769 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 11:32:46,770 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 11:32:46,770 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 11:32:46,770 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-17 11:32:46,770 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:33:21,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:33:21,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 11:33:21,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 11:33:21,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 11:33:21,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-17 11:33:21,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-17 11:33:21,354 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-17 11:33:21,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,SelfDestructingSolverStorable26 [2024-10-17 11:33:21,356 INFO L414 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-10-17 11:33:21,356 INFO L312 ceAbstractionStarter]: Result for error location t_funThread4of4ForFork0 was SAFE (1/5) [2024-10-17 11:33:21,359 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-17 11:33:21,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-17 11:33:21,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 11:33:21,361 INFO L229 MonitoredProcess]: Starting monitored process 8 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 11:33:21,362 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (8)] Waiting until timeout for monitored process [2024-10-17 11:33:21,399 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-17 11:33:21,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 11:33:21,400 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t_funThread2of4ForFork0 ======== [2024-10-17 11:33:21,400 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;@2029ffc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=COUNTEREXAMPLE, mConComCheckerCriterion=SLEEP_SET, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-10-17 11:33:21,400 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-17 11:33:24,155 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 11:33:24,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 11:33:24,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1780177287, now seen corresponding path program 1 times [2024-10-17 11:33:24,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 11:33:24,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960935546] [2024-10-17 11:33:24,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 11:33:24,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 11:33:24,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 11:33:24,169 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 11:33:24,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 11:33:24,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960935546] [2024-10-17 11:33:24,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960935546] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 11:33:24,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 11:33:24,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-17 11:33:24,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173721394] [2024-10-17 11:33:24,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 11:33:24,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-17 11:33:24,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 11:33:24,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-17 11:33:24,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-17 11:33:24,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:33:24,172 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 11:33:24,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 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 11:33:24,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:33:24,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:33:24,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-17 11:33:24,236 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 11:33:24,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 11:33:24,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1792946433, now seen corresponding path program 1 times [2024-10-17 11:33:24,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 11:33:24,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096875182] [2024-10-17 11:33:24,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 11:33:24,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 11:33:24,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 11:33:24,293 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 11:33:24,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 11:33:24,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096875182] [2024-10-17 11:33:24,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096875182] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 11:33:24,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 11:33:24,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-17 11:33:24,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673231814] [2024-10-17 11:33:24,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 11:33:24,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-17 11:33:24,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 11:33:24,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-17 11:33:24,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-17 11:33:24,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:33:24,296 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 11:33:24,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 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 11:33:24,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:33:24,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:33:24,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:33:24,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 11:33:24,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-17 11:33:24,409 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 11:33:24,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 11:33:24,410 INFO L85 PathProgramCache]: Analyzing trace with hash -395743955, now seen corresponding path program 1 times [2024-10-17 11:33:24,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 11:33:24,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669176455] [2024-10-17 11:33:24,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 11:33:24,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 11:33:24,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 11:33:24,469 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 11:33:24,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 11:33:24,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669176455] [2024-10-17 11:33:24,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669176455] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 11:33:24,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 11:33:24,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-17 11:33:24,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942208461] [2024-10-17 11:33:24,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 11:33:24,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-17 11:33:24,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 11:33:24,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-17 11:33:24,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-17 11:33:24,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:33:24,473 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 11:33:24,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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 11:33:24,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:33:24,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 11:33:24,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:33:29,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:33:29,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 11:33:29,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 11:33:29,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-10-17 11:33:29,374 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 11:33:29,436 INFO L85 PathProgramCache]: Analyzing trace with hash -23685317, now seen corresponding path program 1 times [2024-10-17 11:33:29,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 11:33:29,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 11:33:29,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 11:33:29,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 11:33:29,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 11:33:29,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 11:33:29,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 11:33:29,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 11:33:29,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-17 11:33:29,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-17 11:33:29,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-17 11:33:29,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:33:29,607 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 11:33:29,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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 11:33:29,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:33:29,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 11:33:29,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-17 11:33:29,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:33:30,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:33:30,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 11:33:30,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 11:33:30,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 11:33:30,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,SelfDestructingSolverStorable31 [2024-10-17 11:33:30,675 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 11:33:30,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1093542457, now seen corresponding path program 1 times [2024-10-17 11:33:30,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 11:33:30,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 11:33:30,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 11:33:30,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 11:33:30,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 11:33:30,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 11:33:30,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 11:33:30,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 11:33:30,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-17 11:33:30,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-17 11:33:30,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-17 11:33:30,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:33:30,886 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 11:33:30,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 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 11:33:30,886 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:33:30,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 11:33:30,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-17 11:33:30,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-17 11:33:30,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:33:31,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:33:31,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 11:33:31,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 11:33:31,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 11:33:31,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 11:33:31,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,SelfDestructingSolverStorable33 [2024-10-17 11:33:31,993 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 11:33:32,053 INFO L85 PathProgramCache]: Analyzing trace with hash 977731689, now seen corresponding path program 1 times [2024-10-17 11:33:32,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 11:33:32,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 11:33:32,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 11:33:32,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 11:33:32,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 11:33:32,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 11:33:32,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 11:33:32,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 11:33:32,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-17 11:33:32,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-17 11:33:32,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-10-17 11:33:32,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:33:32,269 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 11:33:32,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 6 states have internal predecessors, (60), 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 11:33:32,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 11:33:32,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 11:33:32,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-17 11:33:32,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-17 11:33:32,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-17 11:33:32,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.