./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_91-arrayloop2_racefree.i --full-output --traceabstraction.commutativity.condition.synthesis NECESSARY_AND_SUFFICIENT -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1c4755c5 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_91-arrayloop2_racefree.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 ac583c9331a2ad916f4c22969f16915d9226d22c75c23a992e6ef02ec672d4b3 --traceabstraction.commutativity.condition.synthesis NECESSARY_AND_SUFFICIENT -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --- Real Ultimate output --- This is Ultimate 0.3.0-dev-1c4755c-m [2024-12-17 20:14:59,175 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-17 20:14:59,236 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-12-17 20:14:59,241 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-17 20:14:59,243 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-17 20:14:59,259 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-17 20:14:59,260 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-17 20:14:59,260 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-17 20:14:59,260 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-17 20:14:59,260 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-17 20:14:59,261 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-17 20:14:59,261 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-17 20:14:59,261 INFO L153 SettingsManager]: * Use SBE=true [2024-12-17 20:14:59,261 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-17 20:14:59,261 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-17 20:14:59,261 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-17 20:14:59,261 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-17 20:14:59,261 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-17 20:14:59,262 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-17 20:14:59,262 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-17 20:14:59,262 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-17 20:14:59,262 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-17 20:14:59,262 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-17 20:14:59,262 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-17 20:14:59,262 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-17 20:14:59,262 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-17 20:14:59,263 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-17 20:14:59,263 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-17 20:14:59,263 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-17 20:14:59,263 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-17 20:14:59,263 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-12-17 20:14:59,263 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-17 20:14:59,263 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-17 20:14:59,263 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-17 20:14:59,264 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2024-12-17 20:14:59,264 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-17 20:14:59,264 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-17 20:14:59,264 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-12-17 20:14:59,264 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-17 20:14:59,264 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-17 20:14:59,264 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-12-17 20:14:59,264 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-12-17 20:14:59,264 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-12-17 20:14:59,265 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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-jdk21/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 -> ac583c9331a2ad916f4c22969f16915d9226d22c75c23a992e6ef02ec672d4b3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> NECESSARY_AND_SUFFICIENT [2024-12-17 20:14:59,519 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-17 20:14:59,525 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-17 20:14:59,528 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-17 20:14:59,529 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-17 20:14:59,529 INFO L274 PluginConnector]: CDTParser initialized [2024-12-17 20:14:59,530 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_91-arrayloop2_racefree.i [2024-12-17 20:15:00,801 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/e2594d668/87447e9a30fe4f35865aa5494dde15b9/FLAG8ca6b15a8 [2024-12-17 20:15:01,117 INFO L384 CDTParser]: Found 1 translation units. [2024-12-17 20:15:01,118 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/trunk/examples/svcomp/goblint-regression/28-race_reach_91-arrayloop2_racefree.i [2024-12-17 20:15:01,130 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/e2594d668/87447e9a30fe4f35865aa5494dde15b9/FLAG8ca6b15a8 [2024-12-17 20:15:01,144 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/e2594d668/87447e9a30fe4f35865aa5494dde15b9 [2024-12-17 20:15:01,146 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-17 20:15:01,147 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-17 20:15:01,150 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-17 20:15:01,150 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-17 20:15:01,154 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-17 20:15:01,155 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 08:15:01" (1/1) ... [2024-12-17 20:15:01,157 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e582c30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:15:01, skipping insertion in model container [2024-12-17 20:15:01,157 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 08:15:01" (1/1) ... [2024-12-17 20:15:01,188 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-17 20:15:01,601 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/goblint-regression/28-race_reach_91-arrayloop2_racefree.i[47038,47051] [2024-12-17 20:15:01,615 WARN L1731 CHandler]: Possible shadowing of function new [2024-12-17 20:15:01,615 WARN L1731 CHandler]: Possible shadowing of function new [2024-12-17 20:15:01,616 WARN L1731 CHandler]: Possible shadowing of function new [2024-12-17 20:15:01,616 WARN L1731 CHandler]: Possible shadowing of function new [2024-12-17 20:15:01,638 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-17 20:15:01,671 INFO L200 MainTranslator]: Completed pre-run [2024-12-17 20:15:01,701 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/goblint-regression/28-race_reach_91-arrayloop2_racefree.i[47038,47051] [2024-12-17 20:15:01,707 WARN L1731 CHandler]: Possible shadowing of function new [2024-12-17 20:15:01,707 WARN L1731 CHandler]: Possible shadowing of function new [2024-12-17 20:15:01,707 WARN L1731 CHandler]: Possible shadowing of function new [2024-12-17 20:15:01,710 WARN L1731 CHandler]: Possible shadowing of function new [2024-12-17 20:15:01,726 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-17 20:15:01,788 INFO L204 MainTranslator]: Completed translation [2024-12-17 20:15:01,789 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:15:01 WrapperNode [2024-12-17 20:15:01,789 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-17 20:15:01,790 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-17 20:15:01,790 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-17 20:15:01,790 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-17 20:15:01,796 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:15:01" (1/1) ... [2024-12-17 20:15:01,819 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:15:01" (1/1) ... [2024-12-17 20:15:01,850 INFO L138 Inliner]: procedures = 279, calls = 119, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 240 [2024-12-17 20:15:01,852 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-17 20:15:01,853 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-17 20:15:01,853 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-17 20:15:01,853 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-17 20:15:01,859 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:15:01" (1/1) ... [2024-12-17 20:15:01,859 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:15:01" (1/1) ... [2024-12-17 20:15:01,862 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:15:01" (1/1) ... [2024-12-17 20:15:01,862 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:15:01" (1/1) ... [2024-12-17 20:15:01,871 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:15:01" (1/1) ... [2024-12-17 20:15:01,872 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:15:01" (1/1) ... [2024-12-17 20:15:01,875 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:15:01" (1/1) ... [2024-12-17 20:15:01,877 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:15:01" (1/1) ... [2024-12-17 20:15:01,878 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:15:01" (1/1) ... [2024-12-17 20:15:01,880 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-17 20:15:01,881 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-17 20:15:01,881 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-17 20:15:01,881 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-17 20:15:01,882 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:15:01" (1/1) ... [2024-12-17 20:15:01,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-12-17 20:15:01,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 20:15:01,918 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-12-17 20:15:01,925 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-12-17 20:15:01,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-17 20:15:01,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-12-17 20:15:01,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-17 20:15:01,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-12-17 20:15:01,942 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-12-17 20:15:01,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-17 20:15:01,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-17 20:15:01,942 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-12-17 20:15:01,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-17 20:15:01,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-17 20:15:01,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-12-17 20:15:01,943 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-12-17 20:15:01,944 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-12-17 20:15:01,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-17 20:15:01,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-17 20:15:01,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-17 20:15:01,945 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-17 20:15:02,086 INFO L234 CfgBuilder]: Building ICFG [2024-12-17 20:15:02,090 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-17 20:15:02,475 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-17 20:15:02,476 INFO L283 CfgBuilder]: Performing block encoding [2024-12-17 20:15:02,872 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-17 20:15:02,873 INFO L312 CfgBuilder]: Removed 5 assume(true) statements. [2024-12-17 20:15:02,873 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 08:15:02 BoogieIcfgContainer [2024-12-17 20:15:02,873 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-17 20:15:02,875 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-17 20:15:02,876 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-17 20:15:02,879 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-17 20:15:02,880 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 08:15:01" (1/3) ... [2024-12-17 20:15:02,880 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17a8f29a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 08:15:02, skipping insertion in model container [2024-12-17 20:15:02,881 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:15:01" (2/3) ... [2024-12-17 20:15:02,882 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17a8f29a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 08:15:02, skipping insertion in model container [2024-12-17 20:15:02,882 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 08:15:02" (3/3) ... [2024-12-17 20:15:02,883 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_91-arrayloop2_racefree.i [2024-12-17 20:15:02,897 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-17 20:15:02,898 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_91-arrayloop2_racefree.i that has 2 procedures, 43 locations, 1 initial locations, 11 loop locations, and 1 error locations. [2024-12-17 20:15:02,898 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-17 20:15:02,976 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-12-17 20:15:03,028 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-17 20:15:03,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-12-17 20:15:03,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 20:15:03,031 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-12-17 20:15:03,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-12-17 20:15:03,107 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-12-17 20:15:03,121 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t_funThread1of1ForFork0 ======== [2024-12-17 20:15:03,127 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;@124ab8c3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-17 20:15:03,128 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-17 20:15:03,482 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-17 20:15:03,484 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 20:15:03,484 INFO L139 ounterexampleChecker]: Examining path program with hash -448621699, occurence #1 [2024-12-17 20:15:03,484 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 20:15:03,486 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 20:15:03,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 20:15:03,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1960984800, now seen corresponding path program 1 times [2024-12-17 20:15:03,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 20:15:03,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264900248] [2024-12-17 20:15:03,498 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 20:15:03,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 20:15:03,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 20:15:03,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-17 20:15:03,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 20:15:03,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264900248] [2024-12-17 20:15:03,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264900248] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 20:15:03,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 20:15:03,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-17 20:15:03,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140137528] [2024-12-17 20:15:03,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 20:15:03,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-17 20:15:03,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 20:15:03,859 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-17 20:15:03,861 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-17 20:15:03,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 20:15:03,862 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 20:15:03,864 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) [2024-12-17 20:15:03,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 20:15:04,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 20:15:04,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-17 20:15:04,021 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-17 20:15:04,021 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 20:15:04,021 INFO L139 ounterexampleChecker]: Examining path program with hash 1050829745, occurence #1 [2024-12-17 20:15:04,021 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 20:15:04,021 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 20:15:04,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 20:15:04,022 INFO L85 PathProgramCache]: Analyzing trace with hash 318258595, now seen corresponding path program 1 times [2024-12-17 20:15:04,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 20:15:04,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257047009] [2024-12-17 20:15:04,022 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 20:15:04,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 20:15:04,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 20:15:04,239 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-17 20:15:04,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 20:15:04,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257047009] [2024-12-17 20:15:04,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257047009] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 20:15:04,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 20:15:04,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-17 20:15:04,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727137007] [2024-12-17 20:15:04,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 20:15:04,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-17 20:15:04,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 20:15:04,242 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-17 20:15:04,242 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-17 20:15:04,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 20:15:04,242 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 20:15:04,243 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) [2024-12-17 20:15:04,243 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 20:15:04,243 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 20:15:04,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 20:15:04,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 20:15:04,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-17 20:15:04,369 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-17 20:15:04,369 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 20:15:04,370 INFO L139 ounterexampleChecker]: Examining path program with hash 1050829745, occurence #2 [2024-12-17 20:15:04,370 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-17 20:15:04,370 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-17 20:15:04,370 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 20:15:04,370 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2024-12-17 20:15:04,370 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 20:15:04,371 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2024-12-17 20:15:04,371 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 20:15:04,371 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2024-12-17 20:15:04,371 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 20:15:04,371 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-17 20:15:04,371 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 20:15:04,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 20:15:04,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1254863480, now seen corresponding path program 1 times [2024-12-17 20:15:04,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 20:15:04,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160944750] [2024-12-17 20:15:04,371 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 20:15:04,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 20:15:04,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 20:15:04,536 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-17 20:15:04,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 20:15:04,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160944750] [2024-12-17 20:15:04,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160944750] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-17 20:15:04,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1833837613] [2024-12-17 20:15:04,537 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 20:15:04,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 20:15:04,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 20:15:04,541 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-17 20:15:04,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-17 20:15:04,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 20:15:04,712 INFO L256 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-17 20:15:04,715 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 20:15:04,728 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-17 20:15:04,729 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-17 20:15:04,752 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-17 20:15:04,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1833837613] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-17 20:15:04,753 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-17 20:15:04,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-12-17 20:15:04,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118945179] [2024-12-17 20:15:04,753 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-17 20:15:04,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-17 20:15:04,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 20:15:04,755 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-17 20:15:04,756 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-12-17 20:15:04,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 20:15:04,756 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 20:15:04,756 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) [2024-12-17 20:15:04,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 20:15:04,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 20:15:04,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 20:15:05,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 20:15:05,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 20:15:05,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 20:15:05,236 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-17 20:15:05,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 20:15:05,428 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-17 20:15:05,428 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 20:15:05,428 INFO L139 ounterexampleChecker]: Examining path program with hash 1050829745, occurence #3 [2024-12-17 20:15:05,428 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-17 20:15:05,428 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-17 20:15:05,429 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 20:15:05,429 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2024-12-17 20:15:05,429 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 20:15:05,429 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2024-12-17 20:15:05,429 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 20:15:05,429 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2024-12-17 20:15:05,429 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 20:15:05,429 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-17 20:15:05,429 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 20:15:05,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 20:15:05,430 INFO L85 PathProgramCache]: Analyzing trace with hash -915435805, now seen corresponding path program 2 times [2024-12-17 20:15:05,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 20:15:05,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379423944] [2024-12-17 20:15:05,431 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-17 20:15:05,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 20:15:05,561 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-17 20:15:05,561 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 20:15:05,764 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-12-17 20:15:05,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 20:15:05,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379423944] [2024-12-17 20:15:05,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379423944] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-17 20:15:05,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367386740] [2024-12-17 20:15:05,765 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-17 20:15:05,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 20:15:05,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 20:15:05,768 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-17 20:15:05,771 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-17 20:15:06,086 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-17 20:15:06,087 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 20:15:06,090 INFO L256 TraceCheckSpWp]: Trace formula consists of 707 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-17 20:15:06,092 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 20:15:06,143 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-17 20:15:06,143 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-17 20:15:06,219 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-17 20:15:06,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [367386740] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-17 20:15:06,219 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-17 20:15:06,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2024-12-17 20:15:06,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224462769] [2024-12-17 20:15:06,220 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-17 20:15:06,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-17 20:15:06,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 20:15:06,220 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-17 20:15:06,220 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2024-12-17 20:15:06,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 20:15:06,221 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 20:15:06,221 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) [2024-12-17 20:15:06,221 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 20:15:06,221 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 20:15:06,221 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-17 20:15:06,221 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 20:15:07,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 20:15:07,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 20:15:07,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 20:15:07,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-12-17 20:15:07,528 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-12-17 20:15:07,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 20:15:07,722 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-17 20:15:07,722 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 20:15:07,722 INFO L139 ounterexampleChecker]: Examining path program with hash 1050829745, occurence #4 [2024-12-17 20:15:07,722 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-17 20:15:07,722 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-17 20:15:07,722 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 20:15:07,722 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2024-12-17 20:15:07,722 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 20:15:07,722 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 11 [2024-12-17 20:15:07,722 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 20:15:07,722 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2024-12-17 20:15:07,722 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 20:15:07,722 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 23 [2024-12-17 20:15:07,722 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 20:15:07,722 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 27 [2024-12-17 20:15:07,723 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 20:15:07,723 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-17 20:15:07,723 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 20:15:07,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 20:15:07,723 INFO L85 PathProgramCache]: Analyzing trace with hash -784654874, now seen corresponding path program 3 times [2024-12-17 20:15:07,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 20:15:07,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038326665] [2024-12-17 20:15:07,724 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-17 20:15:07,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 20:15:18,171 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2024-12-17 20:15:18,171 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 20:15:18,834 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 123 proven. 55 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-12-17 20:15:18,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 20:15:18,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038326665] [2024-12-17 20:15:18,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038326665] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-17 20:15:18,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1598528811] [2024-12-17 20:15:18,834 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-17 20:15:18,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 20:15:18,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 20:15:18,837 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-17 20:15:18,841 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process Killed by 15