./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_92-evilcollapse_racing.i --full-output --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking COUNTEREXAMPLE --traceabstraction.criterion.for.conditional.commutativity.checking LOOP -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_92-evilcollapse_racing.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 6efa0097353392a416215c2535cfc6cdc34364d9b0eb2844e37da9edef467642 --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking COUNTEREXAMPLE --traceabstraction.criterion.for.conditional.commutativity.checking LOOP -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 15:16:57,527 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-17 15:16:57,612 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-10-17 15:16:57,618 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-17 15:16:57,619 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-17 15:16:57,644 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-17 15:16:57,645 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-17 15:16:57,646 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-17 15:16:57,647 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-17 15:16:57,648 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-17 15:16:57,648 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-17 15:16:57,649 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-17 15:16:57,649 INFO L153 SettingsManager]: * Use SBE=true [2024-10-17 15:16:57,649 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-17 15:16:57,652 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-17 15:16:57,652 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-17 15:16:57,652 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-17 15:16:57,653 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-17 15:16:57,653 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-17 15:16:57,653 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-17 15:16:57,653 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-17 15:16:57,657 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-17 15:16:57,657 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-17 15:16:57,658 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-17 15:16:57,658 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-17 15:16:57,658 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-17 15:16:57,658 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-17 15:16:57,659 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-17 15:16:57,659 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-17 15:16:57,659 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-17 15:16:57,659 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-17 15:16:57,660 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-17 15:16:57,660 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-17 15:16:57,660 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-10-17 15:16:57,660 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-17 15:16:57,661 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-17 15:16:57,661 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-17 15:16:57,661 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-17 15:16:57,663 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-17 15:16:57,663 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-17 15:16:57,664 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-17 15:16:57,664 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6efa0097353392a416215c2535cfc6cdc34364d9b0eb2844e37da9edef467642 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional conditional commutativity checking -> COUNTEREXAMPLE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Criterion for conditional commutativity checking -> LOOP [2024-10-17 15:16:57,904 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-17 15:16:57,927 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-17 15:16:57,930 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-17 15:16:57,932 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-17 15:16:57,932 INFO L274 PluginConnector]: CDTParser initialized [2024-10-17 15:16:57,933 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_92-evilcollapse_racing.i [2024-10-17 15:16:59,308 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-17 15:16:59,591 INFO L384 CDTParser]: Found 1 translation units. [2024-10-17 15:16:59,591 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_92-evilcollapse_racing.i [2024-10-17 15:16:59,608 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/9eb568ecc/df92aede86e043d6987b835a93597138/FLAGe4c9b1f0a [2024-10-17 15:16:59,625 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/9eb568ecc/df92aede86e043d6987b835a93597138 [2024-10-17 15:16:59,627 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-17 15:16:59,629 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-17 15:16:59,631 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-17 15:16:59,631 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-17 15:16:59,636 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-17 15:16:59,637 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 03:16:59" (1/1) ... [2024-10-17 15:16:59,640 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e4fcef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 03:16:59, skipping insertion in model container [2024-10-17 15:16:59,640 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 03:16:59" (1/1) ... [2024-10-17 15:16:59,699 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-17 15:17:00,129 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_92-evilcollapse_racing.i[47038,47051] [2024-10-17 15:17:00,142 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-17 15:17:00,143 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-17 15:17:00,143 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-17 15:17:00,144 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-17 15:17:00,176 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-17 15:17:00,197 INFO L200 MainTranslator]: Completed pre-run [2024-10-17 15:17:00,241 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_92-evilcollapse_racing.i[47038,47051] [2024-10-17 15:17:00,245 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-17 15:17:00,245 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-17 15:17:00,245 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-17 15:17:00,246 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-17 15:17:00,257 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-17 15:17:00,313 INFO L204 MainTranslator]: Completed translation [2024-10-17 15:17:00,314 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 03:17:00 WrapperNode [2024-10-17 15:17:00,314 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-17 15:17:00,315 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-17 15:17:00,315 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-17 15:17:00,315 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-17 15:17:00,322 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 03:17:00" (1/1) ... [2024-10-17 15:17:00,340 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 03:17:00" (1/1) ... [2024-10-17 15:17:00,378 INFO L138 Inliner]: procedures = 279, calls = 55, calls flagged for inlining = 11, calls inlined = 12, statements flattened = 236 [2024-10-17 15:17:00,379 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-17 15:17:00,380 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-17 15:17:00,380 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-17 15:17:00,380 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-17 15:17:00,389 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 03:17:00" (1/1) ... [2024-10-17 15:17:00,389 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 03:17:00" (1/1) ... [2024-10-17 15:17:00,393 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 03:17:00" (1/1) ... [2024-10-17 15:17:00,394 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 03:17:00" (1/1) ... [2024-10-17 15:17:00,404 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 03:17:00" (1/1) ... [2024-10-17 15:17:00,414 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 03:17:00" (1/1) ... [2024-10-17 15:17:00,417 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 03:17:00" (1/1) ... [2024-10-17 15:17:00,418 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 03:17:00" (1/1) ... [2024-10-17 15:17:00,422 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-17 15:17:00,423 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-17 15:17:00,423 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-17 15:17:00,423 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-17 15:17:00,424 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 03:17:00" (1/1) ... [2024-10-17 15:17:00,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-17 15:17:00,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 15:17:00,460 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 15:17:00,462 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 15:17:00,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-17 15:17:00,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-10-17 15:17:00,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-17 15:17:00,506 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-17 15:17:00,506 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-17 15:17:00,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-17 15:17:00,506 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-17 15:17:00,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-17 15:17:00,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-17 15:17:00,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-10-17 15:17:00,507 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-17 15:17:00,507 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-17 15:17:00,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-17 15:17:00,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-17 15:17:00,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-17 15:17:00,510 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 15:17:00,656 INFO L238 CfgBuilder]: Building ICFG [2024-10-17 15:17:00,658 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-17 15:17:01,128 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-17 15:17:01,128 INFO L287 CfgBuilder]: Performing block encoding [2024-10-17 15:17:01,409 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-17 15:17:01,409 INFO L314 CfgBuilder]: Removed 16 assume(true) statements. [2024-10-17 15:17:01,409 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 03:17:01 BoogieIcfgContainer [2024-10-17 15:17:01,410 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-17 15:17:01,413 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-17 15:17:01,413 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-17 15:17:01,417 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-17 15:17:01,417 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 03:16:59" (1/3) ... [2024-10-17 15:17:01,418 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25fb247a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 03:17:01, skipping insertion in model container [2024-10-17 15:17:01,418 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 03:17:00" (2/3) ... [2024-10-17 15:17:01,418 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25fb247a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 03:17:01, skipping insertion in model container [2024-10-17 15:17:01,419 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 03:17:01" (3/3) ... [2024-10-17 15:17:01,420 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_92-evilcollapse_racing.i [2024-10-17 15:17:01,438 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-17 15:17:01,439 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-17 15:17:01,439 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-17 15:17:01,486 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-17 15:17:01,534 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-17 15:17:01,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-17 15:17:01,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 15:17:01,537 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 15:17:01,539 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 15:17:01,671 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-17 15:17:01,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 15:17:01,703 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t_funThread1of1ForFork0 ======== [2024-10-17 15:17:01,726 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;@7a1adbd0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=COUNTEREXAMPLE, mConComCheckerCriterion=LOOP, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-10-17 15:17:01,727 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-17 15:17:02,279 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 15:17:02,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 15:17:02,285 INFO L85 PathProgramCache]: Analyzing trace with hash -815290340, now seen corresponding path program 1 times [2024-10-17 15:17:02,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 15:17:02,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615432869] [2024-10-17 15:17:02,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 15:17:02,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 15:17:02,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 15:17:02,633 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-17 15:17:02,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 15:17:02,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615432869] [2024-10-17 15:17:02,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615432869] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 15:17:02,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 15:17:02,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-17 15:17:02,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915553090] [2024-10-17 15:17:02,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 15:17:02,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-17 15:17:02,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 15:17:02,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-17 15:17:02,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-17 15:17:02,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 15:17:02,677 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 15:17:02,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 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 15:17:02,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 15:17:02,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 15:17:02,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-17 15:17:02,842 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 15:17:02,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 15:17:02,843 INFO L85 PathProgramCache]: Analyzing trace with hash -312172721, now seen corresponding path program 1 times [2024-10-17 15:17:02,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 15:17:02,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647984780] [2024-10-17 15:17:02,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 15:17:02,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 15:17:02,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 15:17:02,978 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-17 15:17:02,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 15:17:02,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647984780] [2024-10-17 15:17:02,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647984780] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 15:17:02,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 15:17:02,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-17 15:17:02,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598865325] [2024-10-17 15:17:02,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 15:17:02,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-17 15:17:02,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 15:17:02,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-17 15:17:02,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-17 15:17:02,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 15:17:02,982 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 15:17:02,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 15:17:02,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 15:17:02,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 15:17:03,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 15:17:03,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 15:17:03,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-17 15:17:03,123 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 15:17:03,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 15:17:03,124 INFO L85 PathProgramCache]: Analyzing trace with hash 573698871, now seen corresponding path program 1 times [2024-10-17 15:17:03,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 15:17:03,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734190954] [2024-10-17 15:17:03,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 15:17:03,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 15:17:03,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 15:17:03,322 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-17 15:17:03,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 15:17:03,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734190954] [2024-10-17 15:17:03,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734190954] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 15:17:03,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [83975954] [2024-10-17 15:17:03,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 15:17:03,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 15:17:03,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 15:17:03,343 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-17 15:17:03,345 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-17 15:17:03,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 15:17:03,518 INFO L255 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-17 15:17:03,522 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 15:17:03,540 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-17 15:17:03,542 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 15:17:03,562 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-17 15:17:03,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [83975954] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 15:17:03,564 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 15:17:03,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-10-17 15:17:03,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152198674] [2024-10-17 15:17:03,565 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 15:17:03,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-17 15:17:03,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 15:17:03,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-17 15:17:03,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-17 15:17:03,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 15:17:03,567 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 15:17:03,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 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 15:17:03,567 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 15:17:03,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 15:17:03,569 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 15:17:03,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 15:17:03,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 15:17:03,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 15:17:03,844 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-17 15:17:04,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-10-17 15:17:04,031 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 15:17:04,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 15:17:04,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1611553103, now seen corresponding path program 2 times [2024-10-17 15:17:04,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 15:17:04,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896937065] [2024-10-17 15:17:04,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 15:17:04,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 15:17:04,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 15:17:04,269 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-17 15:17:04,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 15:17:04,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896937065] [2024-10-17 15:17:04,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896937065] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 15:17:04,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1425131247] [2024-10-17 15:17:04,272 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-17 15:17:04,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 15:17:04,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 15:17:04,274 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-17 15:17:04,275 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-17 15:17:04,535 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-17 15:17:04,535 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 15:17:04,539 INFO L255 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-17 15:17:04,541 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 15:17:04,585 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-17 15:17:04,587 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 15:17:04,655 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-17 15:17:04,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1425131247] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 15:17:04,657 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 15:17:04,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2024-10-17 15:17:04,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433585421] [2024-10-17 15:17:04,657 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 15:17:04,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-17 15:17:04,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 15:17:04,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-17 15:17:04,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2024-10-17 15:17:04,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 15:17:04,659 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 15:17:04,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.4285714285714284) internal successors, (34), 14 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 15:17:04,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 15:17:04,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 15:17:04,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-17 15:17:04,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 15:17:05,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 15:17:05,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 15:17:05,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 15:17:05,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-10-17 15:17:05,529 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-17 15:17:05,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 15:17:05,715 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 15:17:05,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 15:17:05,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1827128322, now seen corresponding path program 3 times [2024-10-17 15:17:05,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 15:17:05,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810032272] [2024-10-17 15:17:05,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 15:17:05,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 15:17:06,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 15:17:06,977 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 123 proven. 55 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-10-17 15:17:06,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 15:17:06,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810032272] [2024-10-17 15:17:06,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810032272] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 15:17:06,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1711016607] [2024-10-17 15:17:06,978 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-17 15:17:06,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 15:17:06,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 15:17:06,980 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-17 15:17:06,982 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process Killed by 15