/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../benchexec/../../../trunk/examples/settings/default/gemcutter/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true --icfgbuilder.only.consider.context.switches.at.boundaries.of.atomic.blocks false --rcfgbuilder.only.consider.context.switches.at.boundaries.of.atomic.blocks false --traceabstraction.dfs.order.used.in.por BY_SERIAL_NUMBER --traceabstraction.abstraction.used.for.commutativity.in.por VARIABLES_GLOBAL --traceabstraction.commutativity.condition.synthesis NONE -i ../../../trunk/examples/svcomp/weaver/bench-exp3x3-opt.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.cfg-lbe-improvements-04aa6ae-m [2025-04-16 02:51:43,013 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-16 02:51:43,067 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../benchexec/../../../trunk/examples/settings/default/gemcutter/svcomp-Reach-32bit-GemCutter_Default.epf [2025-04-16 02:51:43,075 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-16 02:51:43,075 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-16 02:51:43,094 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-16 02:51:43,095 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-16 02:51:43,095 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-16 02:51:43,096 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-16 02:51:43,096 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-16 02:51:43,097 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-16 02:51:43,097 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-16 02:51:43,097 INFO L153 SettingsManager]: * Use SBE=true [2025-04-16 02:51:43,098 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-16 02:51:43,098 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-16 02:51:43,098 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-16 02:51:43,098 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-16 02:51:43,098 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-16 02:51:43,098 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-16 02:51:43,098 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-16 02:51:43,098 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-16 02:51:43,099 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-16 02:51:43,099 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-16 02:51:43,099 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-16 02:51:43,099 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-16 02:51:43,099 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-16 02:51:43,099 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-16 02:51:43,099 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-16 02:51:43,099 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-16 02:51:43,099 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-16 02:51:43,100 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-16 02:51:43,100 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-16 02:51:43,100 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-16 02:51:43,100 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-16 02:51:43,100 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-16 02:51:43,100 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-16 02:51:43,100 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-16 02:51:43,100 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-16 02:51:43,100 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-16 02:51:43,100 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-04-16 02:51:43,100 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-16 02:51:43,100 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-16 02:51:43,100 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-04-16 02:51:43,101 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-16 02:51:43,101 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-04-16 02:51:43,101 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-04-16 02:51:43,101 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-04-16 02:51:43,101 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Only consider context switches at boundaries of atomic blocks -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Only consider context switches at boundaries of atomic blocks -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> BY_SERIAL_NUMBER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstraction used for commutativity in POR -> VARIABLES_GLOBAL Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> NONE [2025-04-16 02:51:43,374 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-16 02:51:43,381 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-16 02:51:43,383 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-16 02:51:43,384 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-16 02:51:43,384 INFO L274 PluginConnector]: CDTParser initialized [2025-04-16 02:51:43,385 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/bench-exp3x3-opt.wvr.c [2025-04-16 02:51:44,707 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db8c89afa/0a736c2437914108b7651d9bfee1d8cc/FLAG4c9eb0720 [2025-04-16 02:51:44,949 INFO L389 CDTParser]: Found 1 translation units. [2025-04-16 02:51:44,949 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp3x3-opt.wvr.c [2025-04-16 02:51:44,959 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db8c89afa/0a736c2437914108b7651d9bfee1d8cc/FLAG4c9eb0720 [2025-04-16 02:51:45,758 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db8c89afa/0a736c2437914108b7651d9bfee1d8cc [2025-04-16 02:51:45,760 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-16 02:51:45,762 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-16 02:51:45,762 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-16 02:51:45,762 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-16 02:51:45,765 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-16 02:51:45,766 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.04 02:51:45" (1/1) ... [2025-04-16 02:51:45,767 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56fc48fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 02:51:45, skipping insertion in model container [2025-04-16 02:51:45,767 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.04 02:51:45" (1/1) ... [2025-04-16 02:51:45,786 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-16 02:51:45,993 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-16 02:51:46,003 INFO L200 MainTranslator]: Completed pre-run [2025-04-16 02:51:46,052 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-16 02:51:46,078 INFO L204 MainTranslator]: Completed translation [2025-04-16 02:51:46,079 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 02:51:46 WrapperNode [2025-04-16 02:51:46,079 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-16 02:51:46,080 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-16 02:51:46,080 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-16 02:51:46,080 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-16 02:51:46,085 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 02:51:46" (1/1) ... [2025-04-16 02:51:46,095 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 02:51:46" (1/1) ... [2025-04-16 02:51:46,122 INFO L138 Inliner]: procedures = 24, calls = 15, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 213 [2025-04-16 02:51:46,123 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-16 02:51:46,123 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-16 02:51:46,123 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-16 02:51:46,123 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-16 02:51:46,129 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 02:51:46" (1/1) ... [2025-04-16 02:51:46,129 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 02:51:46" (1/1) ... [2025-04-16 02:51:46,132 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 02:51:46" (1/1) ... [2025-04-16 02:51:46,133 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 02:51:46" (1/1) ... [2025-04-16 02:51:46,138 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 02:51:46" (1/1) ... [2025-04-16 02:51:46,141 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 02:51:46" (1/1) ... [2025-04-16 02:51:46,145 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 02:51:46" (1/1) ... [2025-04-16 02:51:46,146 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 02:51:46" (1/1) ... [2025-04-16 02:51:46,147 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 02:51:46" (1/1) ... [2025-04-16 02:51:46,155 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-16 02:51:46,155 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-16 02:51:46,156 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-16 02:51:46,156 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-16 02:51:46,156 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 02:51:46" (1/1) ... [2025-04-16 02:51:46,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-16 02:51:46,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-16 02:51:46,186 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-16 02:51:46,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-16 02:51:46,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-16 02:51:46,205 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-16 02:51:46,206 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-16 02:51:46,206 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-16 02:51:46,206 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-16 02:51:46,206 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-04-16 02:51:46,206 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-04-16 02:51:46,206 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-04-16 02:51:46,206 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-04-16 02:51:46,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-16 02:51:46,206 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2025-04-16 02:51:46,206 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2025-04-16 02:51:46,206 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2025-04-16 02:51:46,206 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2025-04-16 02:51:46,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-16 02:51:46,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-16 02:51:46,207 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-16 02:51:46,291 INFO L234 CfgBuilder]: Building ICFG [2025-04-16 02:51:46,293 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-16 02:51:46,665 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-16 02:51:46,666 INFO L289 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-16 02:51:46,666 INFO L294 CfgBuilder]: Performing block encoding [2025-04-16 02:51:46,701 INFO L313 CfgBuilder]: Removed 6 assume(true) statements. [2025-04-16 02:51:46,702 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.04 02:51:46 BoogieIcfgContainer [2025-04-16 02:51:46,702 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-16 02:51:46,706 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-16 02:51:46,706 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-16 02:51:46,710 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-16 02:51:46,710 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.04 02:51:45" (1/3) ... [2025-04-16 02:51:46,711 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f6f6869 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.04 02:51:46, skipping insertion in model container [2025-04-16 02:51:46,711 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 02:51:46" (2/3) ... [2025-04-16 02:51:46,711 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f6f6869 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.04 02:51:46, skipping insertion in model container [2025-04-16 02:51:46,711 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.04 02:51:46" (3/3) ... [2025-04-16 02:51:46,712 INFO L128 eAbstractionObserver]: Analyzing ICFG bench-exp3x3-opt.wvr.c [2025-04-16 02:51:46,722 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-16 02:51:46,726 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG bench-exp3x3-opt.wvr.c that has 7 procedures, 392 locations, 409 edges, 1 initial locations, 6 loop locations, and 61 error locations. [2025-04-16 02:51:46,726 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-16 02:51:46,826 INFO L143 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2025-04-16 02:51:46,876 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-16 02:51:46,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-16 02:51:46,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-16 02:51:46,878 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-04-16 02:51:46,880 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-04-16 02:51:46,957 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-04-16 02:51:46,966 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread4Thread1of1ForFork3 ======== [2025-04-16 02:51:46,971 INFO L340 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;@13eefef6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-16 02:51:46,972 INFO L341 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-04-16 02:51:47,313 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting thread4Err0ASSERT_VIOLATIONDATA_RACE === [thread4Err0ASSERT_VIOLATIONDATA_RACE, thread4Err1ASSERT_VIOLATIONDATA_RACE, thread4Err2ASSERT_VIOLATIONDATA_RACE, thread4Err3ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-04-16 02:51:47,318 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-16 02:51:47,319 INFO L85 PathProgramCache]: Analyzing trace with hash 68236738, now seen corresponding path program 1 times [2025-04-16 02:51:47,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-16 02:51:47,325 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65696748] [2025-04-16 02:51:47,325 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-16 02:51:47,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-16 02:51:47,394 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 122 statements into 1 equivalence classes. [2025-04-16 02:51:47,418 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 122 of 122 statements. [2025-04-16 02:51:47,418 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-16 02:51:47,418 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-16 02:51:47,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-16 02:51:47,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-16 02:51:47,519 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65696748] [2025-04-16 02:51:47,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65696748] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-16 02:51:47,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-16 02:51:47,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-16 02:51:47,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100874485] [2025-04-16 02:51:47,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-16 02:51:47,527 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-04-16 02:51:47,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-16 02:51:47,543 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-04-16 02:51:47,543 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-04-16 02:51:47,543 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-16 02:51:47,547 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-16 02:51:47,549 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 61.0) internal successors, (122), 2 states have internal predecessors, (122), 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) [2025-04-16 02:51:47,549 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-16 02:51:47,604 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-16 02:51:47,604 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-16 02:51:47,604 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting thread4Err0ASSERT_VIOLATIONDATA_RACE === [thread4Err0ASSERT_VIOLATIONDATA_RACE, thread4Err1ASSERT_VIOLATIONDATA_RACE, thread4Err2ASSERT_VIOLATIONDATA_RACE, thread4Err3ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-04-16 02:51:47,605 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-16 02:51:47,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1291298906, now seen corresponding path program 1 times [2025-04-16 02:51:47,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-16 02:51:47,605 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142217074] [2025-04-16 02:51:47,605 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-16 02:51:47,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-16 02:51:47,618 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 121 statements into 1 equivalence classes. [2025-04-16 02:51:47,635 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 121 of 121 statements. [2025-04-16 02:51:47,635 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-16 02:51:47,635 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-16 02:51:47,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-16 02:51:47,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-16 02:51:47,743 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142217074] [2025-04-16 02:51:47,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142217074] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-16 02:51:47,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-16 02:51:47,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-16 02:51:47,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394905490] [2025-04-16 02:51:47,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-16 02:51:47,744 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-16 02:51:47,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-16 02:51:47,745 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-16 02:51:47,745 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-16 02:51:47,745 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-16 02:51:47,748 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-16 02:51:47,749 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 60.5) internal successors, (121), 3 states have internal predecessors, (121), 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) [2025-04-16 02:51:47,749 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-16 02:51:47,749 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-16 02:51:47,839 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-16 02:51:47,840 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-16 02:51:47,840 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-16 02:51:47,840 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting thread4Err1ASSERT_VIOLATIONDATA_RACE === [thread4Err0ASSERT_VIOLATIONDATA_RACE, thread4Err1ASSERT_VIOLATIONDATA_RACE, thread4Err2ASSERT_VIOLATIONDATA_RACE, thread4Err3ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-04-16 02:51:47,840 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-16 02:51:47,840 INFO L85 PathProgramCache]: Analyzing trace with hash -307266852, now seen corresponding path program 1 times [2025-04-16 02:51:47,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-16 02:51:47,840 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147891060] [2025-04-16 02:51:47,841 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-16 02:51:47,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-16 02:51:47,854 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 123 statements into 1 equivalence classes. [2025-04-16 02:51:47,890 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 123 of 123 statements. [2025-04-16 02:51:47,891 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-16 02:51:47,891 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-16 02:51:47,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-16 02:51:47,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-16 02:51:47,973 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147891060] [2025-04-16 02:51:47,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147891060] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-16 02:51:47,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-16 02:51:47,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-16 02:51:47,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690298538] [2025-04-16 02:51:47,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-16 02:51:47,974 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-16 02:51:47,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-16 02:51:47,975 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-16 02:51:47,975 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-16 02:51:47,975 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-16 02:51:47,975 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-16 02:51:47,976 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 61.5) internal successors, (123), 3 states have internal predecessors, (123), 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) [2025-04-16 02:51:47,976 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-16 02:51:47,976 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-16 02:51:47,976 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-16 02:51:48,128 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-16 02:51:48,129 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-16 02:51:48,129 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-16 02:51:48,129 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-16 02:51:48,129 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting thread4Err4ASSERT_VIOLATIONDATA_RACE === [thread4Err0ASSERT_VIOLATIONDATA_RACE, thread4Err1ASSERT_VIOLATIONDATA_RACE, thread4Err2ASSERT_VIOLATIONDATA_RACE, thread4Err3ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-04-16 02:51:48,130 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-16 02:51:48,130 INFO L85 PathProgramCache]: Analyzing trace with hash 241608598, now seen corresponding path program 1 times [2025-04-16 02:51:48,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-16 02:51:48,130 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131048833] [2025-04-16 02:51:48,130 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-16 02:51:48,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-16 02:51:48,142 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-04-16 02:51:48,156 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-04-16 02:51:48,157 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-16 02:51:48,157 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-16 02:51:48,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-16 02:51:48,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-16 02:51:48,205 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131048833] [2025-04-16 02:51:48,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131048833] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-16 02:51:48,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-16 02:51:48,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-16 02:51:48,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814208462] [2025-04-16 02:51:48,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-16 02:51:48,206 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-16 02:51:48,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-16 02:51:48,207 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-16 02:51:48,207 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-16 02:51:48,207 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-16 02:51:48,208 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-16 02:51:48,208 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 66.0) internal successors, (132), 3 states have internal predecessors, (132), 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) [2025-04-16 02:51:48,208 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-16 02:51:48,208 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-16 02:51:48,208 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-16 02:51:48,208 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.