./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/36-apron_21-traces-cluster-based_true.i --full-output --traceabstraction.use.conditional.por.in.concurrent.analysis false --traceabstraction.commutativity.condition.synthesis NONE --traceabstraction.partial.order.reduction.in.concurrent.analysis SLEEP_NEW_STATES --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6f232940 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../sv-benchmarks/c/goblint-regression/36-apron_21-traces-cluster-based_true.i -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cec155e54548239c459fec40910e358deb5fad2ceffa658bfdeefddd1bc9e166 --traceabstraction.use.conditional.por.in.concurrent.analysis false --traceabstraction.commutativity.condition.synthesis NONE --traceabstraction.partial.order.reduction.in.concurrent.analysis SLEEP_NEW_STATES --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6f23294-m [2025-03-19 19:24:31,561 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-19 19:24:31,632 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-03-19 19:24:31,636 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-19 19:24:31,636 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-19 19:24:31,650 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-19 19:24:31,650 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-19 19:24:31,651 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-19 19:24:31,651 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-19 19:24:31,651 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-19 19:24:31,651 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-19 19:24:31,651 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-19 19:24:31,651 INFO L153 SettingsManager]: * Use SBE=true [2025-03-19 19:24:31,651 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-19 19:24:31,651 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-19 19:24:31,652 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-19 19:24:31,652 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-19 19:24:31,652 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-19 19:24:31,652 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-19 19:24:31,652 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-19 19:24:31,652 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-19 19:24:31,652 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-19 19:24:31,652 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-19 19:24:31,652 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-19 19:24:31,652 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-19 19:24:31,652 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-19 19:24:31,653 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-03-19 19:24:31,653 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-19 19:24:31,653 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-19 19:24:31,653 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-19 19:24:31,653 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-19 19:24:31,653 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-19 19:24:31,653 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-19 19:24:31,653 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-19 19:24:31,653 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-03-19 19:24:31,653 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-19 19:24:31,653 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-19 19:24:31,654 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-03-19 19:24:31,654 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-19 19:24:31,654 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-03-19 19:24:31,654 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-03-19 19:24:31,654 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-03-19 19:24:31,654 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/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 -> cec155e54548239c459fec40910e358deb5fad2ceffa658bfdeefddd1bc9e166 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use conditional POR in concurrent analysis -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> NONE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Partial Order Reduction in concurrent analysis -> SLEEP_NEW_STATES [2025-03-19 19:24:31,905 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-19 19:24:31,910 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-19 19:24:31,912 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-19 19:24:31,913 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-19 19:24:31,914 INFO L274 PluginConnector]: CDTParser initialized [2025-03-19 19:24:31,915 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/goblint-regression/36-apron_21-traces-cluster-based_true.i [2025-03-19 19:24:33,210 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/fe79b5a22/910984e66abd477dab48381406e430fa/FLAG884fc5fac [2025-03-19 19:24:33,398 INFO L389 CDTParser]: Found 1 translation units. [2025-03-19 19:24:33,399 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/36-apron_21-traces-cluster-based_true.i [2025-03-19 19:24:33,407 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/fe79b5a22/910984e66abd477dab48381406e430fa/FLAG884fc5fac [2025-03-19 19:24:34,360 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/fe79b5a22/910984e66abd477dab48381406e430fa [2025-03-19 19:24:34,362 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-19 19:24:34,363 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-19 19:24:34,364 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-19 19:24:34,364 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-19 19:24:34,367 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-19 19:24:34,367 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 07:24:34" (1/1) ... [2025-03-19 19:24:34,368 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ca1f406 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 07:24:34, skipping insertion in model container [2025-03-19 19:24:34,368 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 07:24:34" (1/1) ... [2025-03-19 19:24:34,386 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-19 19:24:34,505 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/36-apron_21-traces-cluster-based_true.i[1092,1105] [2025-03-19 19:24:34,597 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-19 19:24:34,609 INFO L200 MainTranslator]: Completed pre-run [2025-03-19 19:24:34,622 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/36-apron_21-traces-cluster-based_true.i[1092,1105] [2025-03-19 19:24:34,645 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-19 19:24:34,692 INFO L204 MainTranslator]: Completed translation [2025-03-19 19:24:34,692 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 07:24:34 WrapperNode [2025-03-19 19:24:34,693 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-19 19:24:34,693 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-19 19:24:34,693 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-19 19:24:34,694 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-19 19:24:34,698 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 07:24:34" (1/1) ... [2025-03-19 19:24:34,711 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 07:24:34" (1/1) ... [2025-03-19 19:24:34,732 INFO L138 Inliner]: procedures = 165, calls = 41, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 137 [2025-03-19 19:24:34,735 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-19 19:24:34,735 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-19 19:24:34,735 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-19 19:24:34,735 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-19 19:24:34,741 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 07:24:34" (1/1) ... [2025-03-19 19:24:34,741 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 07:24:34" (1/1) ... [2025-03-19 19:24:34,745 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 07:24:34" (1/1) ... [2025-03-19 19:24:34,746 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 07:24:34" (1/1) ... [2025-03-19 19:24:34,754 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 07:24:34" (1/1) ... [2025-03-19 19:24:34,755 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 07:24:34" (1/1) ... [2025-03-19 19:24:34,760 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 07:24:34" (1/1) ... [2025-03-19 19:24:34,761 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 07:24:34" (1/1) ... [2025-03-19 19:24:34,762 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 07:24:34" (1/1) ... [2025-03-19 19:24:34,764 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-19 19:24:34,768 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-03-19 19:24:34,768 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-03-19 19:24:34,768 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-03-19 19:24:34,769 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 07:24:34" (1/1) ... [2025-03-19 19:24:34,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-19 19:24:34,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 19:24:34,797 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2025-03-19 19:24:34,800 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2025-03-19 19:24:34,820 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2025-03-19 19:24:34,820 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2025-03-19 19:24:34,820 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-19 19:24:34,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-19 19:24:34,820 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2025-03-19 19:24:34,820 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2025-03-19 19:24:34,820 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-03-19 19:24:34,820 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-03-19 19:24:34,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-19 19:24:34,820 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-19 19:24:34,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-19 19:24:34,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-19 19:24:34,822 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-19 19:24:34,913 INFO L234 CfgBuilder]: Building ICFG [2025-03-19 19:24:34,914 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-19 19:24:35,145 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-19 19:24:35,145 INFO L283 CfgBuilder]: Performing block encoding [2025-03-19 19:24:35,310 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-19 19:24:35,312 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-19 19:24:35,313 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 07:24:35 BoogieIcfgContainer [2025-03-19 19:24:35,313 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-03-19 19:24:35,317 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-19 19:24:35,317 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-19 19:24:35,321 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-19 19:24:35,322 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.03 07:24:34" (1/3) ... [2025-03-19 19:24:35,322 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3194b879 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 07:24:35, skipping insertion in model container [2025-03-19 19:24:35,322 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 07:24:34" (2/3) ... [2025-03-19 19:24:35,323 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3194b879 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 07:24:35, skipping insertion in model container [2025-03-19 19:24:35,323 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 07:24:35" (3/3) ... [2025-03-19 19:24:35,324 INFO L128 eAbstractionObserver]: Analyzing ICFG 36-apron_21-traces-cluster-based_true.i [2025-03-19 19:24:35,336 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-19 19:24:35,338 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 36-apron_21-traces-cluster-based_true.i that has 4 procedures, 64 locations, 65 edges, 1 initial locations, 0 loop locations, and 4 error locations. [2025-03-19 19:24:35,338 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-19 19:24:35,391 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-19 19:24:35,428 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-19 19:24:35,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-03-19 19:24:35,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 19:24:35,432 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-03-19 19:24:35,434 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-03-19 19:24:35,502 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-03-19 19:24:35,508 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t3_funThread1of1ForFork0 ======== [2025-03-19 19:24:35,513 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;@1247befa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-19 19:24:35,513 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-19 19:24:35,543 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-19 19:24:35,547 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 19:24:35,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1344557186, now seen corresponding path program 1 times [2025-03-19 19:24:35,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 19:24:35,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659270779] [2025-03-19 19:24:35,553 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 19:24:35,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 19:24:35,613 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-03-19 19:24:35,671 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-03-19 19:24:35,671 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 19:24:35,671 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 19:24:36,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 19:24:36,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 19:24:36,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659270779] [2025-03-19 19:24:36,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659270779] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 19:24:36,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 19:24:36,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-19 19:24:36,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175545565] [2025-03-19 19:24:36,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 19:24:36,069 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-19 19:24:36,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 19:24:36,084 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-19 19:24:36,084 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-19 19:24:36,084 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 19:24:36,086 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 19:24:36,087 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 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) [2025-03-19 19:24:36,088 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 19:24:36,221 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 19:24:36,221 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-19 19:24:36,222 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-19 19:24:36,222 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 19:24:36,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1840991745, now seen corresponding path program 1 times [2025-03-19 19:24:36,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 19:24:36,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761999000] [2025-03-19 19:24:36,222 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 19:24:36,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 19:24:36,234 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-03-19 19:24:36,251 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-03-19 19:24:36,251 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 19:24:36,251 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 19:24:36,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 19:24:36,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 19:24:36,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761999000] [2025-03-19 19:24:36,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761999000] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 19:24:36,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 19:24:36,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-19 19:24:36,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383511181] [2025-03-19 19:24:36,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 19:24:36,452 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-19 19:24:36,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 19:24:36,452 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-19 19:24:36,452 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-19 19:24:36,452 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 19:24:36,453 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 19:24:36,453 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 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) [2025-03-19 19:24:36,453 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 19:24:36,453 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 19:24:38,174 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 19:24:38,175 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-19 19:24:38,175 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-19 19:24:38,176 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-19 19:24:38,176 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 19:24:38,176 INFO L85 PathProgramCache]: Analyzing trace with hash 766165866, now seen corresponding path program 1 times [2025-03-19 19:24:38,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 19:24:38,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123122031] [2025-03-19 19:24:38,176 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 19:24:38,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 19:24:38,187 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-19 19:24:38,193 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-19 19:24:38,193 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 19:24:38,193 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 19:24:38,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 19:24:38,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 19:24:38,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123122031] [2025-03-19 19:24:38,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123122031] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 19:24:38,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 19:24:38,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-19 19:24:38,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630401657] [2025-03-19 19:24:38,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 19:24:38,247 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-19 19:24:38,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 19:24:38,248 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-19 19:24:38,248 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-19 19:24:38,248 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 19:24:38,248 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 19:24:38,249 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2025-03-19 19:24:38,249 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 19:24:38,249 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-03-19 19:24:38,249 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 19:24:38,666 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 19:24:38,666 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-19 19:24:38,667 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 19:24:38,667 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-19 19:24:38,667 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-19 19:24:38,667 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 19:24:38,667 INFO L85 PathProgramCache]: Analyzing trace with hash -561015570, now seen corresponding path program 1 times [2025-03-19 19:24:38,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 19:24:38,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516870764] [2025-03-19 19:24:38,668 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 19:24:38,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 19:24:38,676 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-19 19:24:38,685 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-19 19:24:38,686 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 19:24:38,688 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 19:24:38,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 19:24:38,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 19:24:38,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516870764] [2025-03-19 19:24:38,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516870764] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 19:24:38,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 19:24:38,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-19 19:24:38,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546065562] [2025-03-19 19:24:38,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 19:24:38,833 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-19 19:24:38,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 19:24:38,837 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-19 19:24:38,837 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-19 19:24:38,837 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 19:24:38,837 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 19:24:38,837 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 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) [2025-03-19 19:24:38,837 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 19:24:38,837 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-03-19 19:24:38,837 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 19:24:38,838 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 19:24:39,839 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 19:24:39,839 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-19 19:24:39,839 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 19:24:39,839 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 19:24:39,841 INFO L791 garLoopResultBuilder]: Registering result SAFE for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-19 19:24:39,842 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-19 19:24:39,847 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-03-19 19:24:39,848 INFO L320 ceAbstractionStarter]: Result for error location t3_funThread1of1ForFork0 was SAFE (1/3) [2025-03-19 19:24:39,852 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-19 19:24:39,852 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-03-19 19:24:39,853 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-03-19 19:24:39,854 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;@1247befa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-19 19:24:39,854 INFO L341 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-03-19 19:24:39,858 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-19 19:24:39,860 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 19:24:39,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1673963557, now seen corresponding path program 1 times [2025-03-19 19:24:39,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 19:24:39,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988397181] [2025-03-19 19:24:39,861 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 19:24:39,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 19:24:39,871 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-19 19:24:39,878 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-19 19:24:39,879 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 19:24:39,879 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 19:24:39,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 19:24:39,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 19:24:39,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988397181] [2025-03-19 19:24:39,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988397181] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 19:24:39,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 19:24:39,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-19 19:24:39,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255431467] [2025-03-19 19:24:39,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 19:24:39,985 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-19 19:24:39,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 19:24:39,986 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-19 19:24:39,987 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-19 19:24:39,987 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 19:24:39,987 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 19:24:39,987 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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) [2025-03-19 19:24:39,987 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 19:24:40,070 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 19:24:40,071 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-19 19:24:40,071 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-19 19:24:40,071 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 19:24:40,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1005649276, now seen corresponding path program 1 times [2025-03-19 19:24:40,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 19:24:40,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347630694] [2025-03-19 19:24:40,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 19:24:40,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 19:24:40,081 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-19 19:24:40,094 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-19 19:24:40,094 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 19:24:40,094 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 19:24:40,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 19:24:40,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 19:24:40,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347630694] [2025-03-19 19:24:40,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347630694] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 19:24:40,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 19:24:40,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-19 19:24:40,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024774474] [2025-03-19 19:24:40,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 19:24:40,217 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-19 19:24:40,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 19:24:40,217 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-19 19:24:40,217 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-19 19:24:40,218 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 19:24:40,218 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 19:24:40,218 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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) [2025-03-19 19:24:40,218 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 19:24:40,218 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 19:24:40,294 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 19:24:40,295 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-19 19:24:40,295 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-19 19:24:40,295 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-19 19:24:40,295 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 19:24:40,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1611151813, now seen corresponding path program 1 times [2025-03-19 19:24:40,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 19:24:40,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574296996] [2025-03-19 19:24:40,295 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 19:24:40,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 19:24:40,304 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-19 19:24:40,315 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-19 19:24:40,318 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 19:24:40,318 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 19:24:40,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 19:24:40,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 19:24:40,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574296996] [2025-03-19 19:24:40,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574296996] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 19:24:40,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 19:24:40,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-19 19:24:40,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743381629] [2025-03-19 19:24:40,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 19:24:40,433 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-19 19:24:40,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 19:24:40,435 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-19 19:24:40,435 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-19 19:24:40,435 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 19:24:40,435 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 19:24:40,435 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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) [2025-03-19 19:24:40,436 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 19:24:40,436 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-03-19 19:24:40,436 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 19:24:41,253 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 19:24:41,253 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 19:24:41,253 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 19:24:41,254 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-19 19:24:41,254 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-19 19:24:41,254 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 19:24:41,254 INFO L85 PathProgramCache]: Analyzing trace with hash -677577462, now seen corresponding path program 2 times [2025-03-19 19:24:41,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 19:24:41,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268465555] [2025-03-19 19:24:41,254 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-19 19:24:41,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 19:24:41,263 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 46 statements into 1 equivalence classes. [2025-03-19 19:24:41,266 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-19 19:24:41,267 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-19 19:24:41,267 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 19:24:41,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 19:24:41,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 19:24:41,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268465555] [2025-03-19 19:24:41,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268465555] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 19:24:41,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 19:24:41,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-19 19:24:41,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362892909] [2025-03-19 19:24:41,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 19:24:41,315 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-19 19:24:41,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 19:24:41,315 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-19 19:24:41,315 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-19 19:24:41,316 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 19:24:41,316 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 19:24:41,316 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2025-03-19 19:24:41,316 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 19:24:41,316 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-19 19:24:41,316 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-19 19:24:41,316 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 19:24:41,550 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 19:24:41,550 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 19:24:41,550 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-19 19:24:41,551 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 19:24:41,551 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-19 19:24:41,551 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-19 19:24:41,551 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 19:24:41,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1302822417, now seen corresponding path program 1 times [2025-03-19 19:24:41,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 19:24:41,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651447017] [2025-03-19 19:24:41,551 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 19:24:41,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 19:24:41,559 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-03-19 19:24:41,565 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-03-19 19:24:41,566 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 19:24:41,566 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 19:24:41,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 19:24:41,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 19:24:41,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651447017] [2025-03-19 19:24:41,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651447017] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 19:24:41,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 19:24:41,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-19 19:24:41,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881766728] [2025-03-19 19:24:41,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 19:24:41,685 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-19 19:24:41,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 19:24:41,686 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-19 19:24:41,686 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-19 19:24:41,686 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 19:24:41,686 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 19:24:41,686 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 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) [2025-03-19 19:24:41,686 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 19:24:41,686 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-19 19:24:41,686 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-03-19 19:24:41,686 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 19:24:41,686 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 19:24:42,071 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 19:24:42,072 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-19 19:24:42,072 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-19 19:24:42,072 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 19:24:42,072 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 19:24:42,072 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-19 19:24:42,072 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-19 19:24:42,072 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 19:24:42,072 INFO L85 PathProgramCache]: Analyzing trace with hash -642862873, now seen corresponding path program 2 times [2025-03-19 19:24:42,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 19:24:42,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770021155] [2025-03-19 19:24:42,072 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-19 19:24:42,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 19:24:42,080 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 46 statements into 1 equivalence classes. [2025-03-19 19:24:42,089 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-19 19:24:42,089 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-19 19:24:42,090 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 19:24:42,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 19:24:42,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 19:24:42,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770021155] [2025-03-19 19:24:42,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770021155] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 19:24:42,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 19:24:42,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-19 19:24:42,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481657451] [2025-03-19 19:24:42,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 19:24:42,185 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-19 19:24:42,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 19:24:42,185 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-19 19:24:42,186 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-19 19:24:42,186 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 19:24:42,186 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 19:24:42,186 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 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) [2025-03-19 19:24:42,186 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-19 19:24:42,187 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-03-19 19:24:42,187 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-03-19 19:24:42,187 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 19:24:42,187 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 19:24:42,187 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 19:24:42,511 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 19:24:42,511 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-19 19:24:42,511 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-19 19:24:42,511 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 19:24:42,511 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 19:24:42,511 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 19:24:42,512 INFO L791 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2025-03-19 19:24:42,512 INFO L791 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2025-03-19 19:24:42,512 INFO L791 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2025-03-19 19:24:42,512 INFO L791 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2025-03-19 19:24:42,512 INFO L791 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2025-03-19 19:24:42,513 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-19 19:24:42,513 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1] [2025-03-19 19:24:42,513 INFO L320 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE,SAFE,SAFE,SAFE (2/3) [2025-03-19 19:24:42,517 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-19 19:24:42,518 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-03-19 19:24:42,518 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t2_funThread1of1ForFork2 ======== [2025-03-19 19:24:42,519 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;@1247befa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-19 19:24:42,519 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-19 19:24:42,520 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-19 19:24:42,520 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 19:24:42,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1101961085, now seen corresponding path program 1 times [2025-03-19 19:24:42,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 19:24:42,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538388483] [2025-03-19 19:24:42,521 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 19:24:42,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 19:24:42,529 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-19 19:24:42,534 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-19 19:24:42,534 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 19:24:42,535 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 19:24:42,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 19:24:42,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 19:24:42,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538388483] [2025-03-19 19:24:42,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538388483] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 19:24:42,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 19:24:42,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-19 19:24:42,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839410871] [2025-03-19 19:24:42,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 19:24:42,623 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-19 19:24:42,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 19:24:42,623 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-19 19:24:42,623 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-19 19:24:42,623 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 19:24:42,624 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 19:24:42,624 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-19 19:24:42,624 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 19:24:44,106 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 19:24:44,107 INFO L791 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-19 19:24:44,107 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-19 19:24:44,107 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-03-19 19:24:44,107 INFO L320 ceAbstractionStarter]: Result for error location t2_funThread1of1ForFork2 was SAFE (3/3) [2025-03-19 19:24:44,108 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-19 19:24:44,108 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-03-19 19:24:44,117 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2025-03-19 19:24:44,117 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.03 07:24:44 BasicIcfg [2025-03-19 19:24:44,118 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-19 19:24:44,118 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-19 19:24:44,118 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-19 19:24:44,118 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-19 19:24:44,119 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 07:24:35" (3/4) ... [2025-03-19 19:24:44,120 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-19 19:24:44,122 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure t2_fun [2025-03-19 19:24:44,122 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure t3_fun [2025-03-19 19:24:44,123 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-03-19 19:24:44,127 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 48 nodes and edges [2025-03-19 19:24:44,128 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2025-03-19 19:24:44,128 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-19 19:24:44,128 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-19 19:24:44,175 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.graphml [2025-03-19 19:24:44,175 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.yml [2025-03-19 19:24:44,175 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-19 19:24:44,176 INFO L158 Benchmark]: Toolchain (without parser) took 9812.52ms. Allocated memory was 117.4MB in the beginning and 729.8MB in the end (delta: 612.4MB). Free memory was 90.5MB in the beginning and 367.2MB in the end (delta: -276.7MB). Peak memory consumption was 331.9MB. Max. memory is 16.1GB. [2025-03-19 19:24:44,176 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 83.9MB. Free memory was 61.1MB in the beginning and 61.1MB in the end (delta: 33.7kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-19 19:24:44,176 INFO L158 Benchmark]: CACSL2BoogieTranslator took 328.65ms. Allocated memory is still 117.4MB. Free memory was 90.3MB in the beginning and 66.9MB in the end (delta: 23.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-19 19:24:44,176 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.60ms. Allocated memory is still 117.4MB. Free memory was 66.9MB in the beginning and 65.0MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-19 19:24:44,176 INFO L158 Benchmark]: Boogie Preprocessor took 32.11ms. Allocated memory is still 117.4MB. Free memory was 65.0MB in the beginning and 63.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-19 19:24:44,177 INFO L158 Benchmark]: RCFGBuilder took 544.99ms. Allocated memory is still 117.4MB. Free memory was 63.6MB in the beginning and 79.2MB in the end (delta: -15.6MB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. [2025-03-19 19:24:44,177 INFO L158 Benchmark]: TraceAbstraction took 8800.67ms. Allocated memory was 117.4MB in the beginning and 729.8MB in the end (delta: 612.4MB). Free memory was 78.4MB in the beginning and 370.7MB in the end (delta: -292.2MB). Peak memory consumption was 502.8MB. Max. memory is 16.1GB. [2025-03-19 19:24:44,177 INFO L158 Benchmark]: Witness Printer took 57.31ms. Allocated memory is still 729.8MB. Free memory was 370.7MB in the beginning and 367.2MB in the end (delta: 3.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-19 19:24:44,178 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 83.9MB. Free memory was 61.1MB in the beginning and 61.1MB in the end (delta: 33.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 328.65ms. Allocated memory is still 117.4MB. Free memory was 90.3MB in the beginning and 66.9MB in the end (delta: 23.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.60ms. Allocated memory is still 117.4MB. Free memory was 66.9MB in the beginning and 65.0MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.11ms. Allocated memory is still 117.4MB. Free memory was 65.0MB in the beginning and 63.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 544.99ms. Allocated memory is still 117.4MB. Free memory was 63.6MB in the beginning and 79.2MB in the end (delta: -15.6MB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. * TraceAbstraction took 8800.67ms. Allocated memory was 117.4MB in the beginning and 729.8MB in the end (delta: 612.4MB). Free memory was 78.4MB in the beginning and 370.7MB in the end (delta: -292.2MB). Peak memory consumption was 502.8MB. Max. memory is 16.1GB. * Witness Printer took 57.31ms. Allocated memory is still 729.8MB. Free memory was 370.7MB in the beginning and 367.2MB in the end (delta: 3.5MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 177130, independent: 168011, independent conditional: 168011, independent unconditional: 0, dependent: 9119, dependent conditional: 9119, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 172000, independent: 168011, independent conditional: 0, independent unconditional: 168011, dependent: 3989, dependent conditional: 0, dependent unconditional: 3989, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1118, independent: 1057, independent conditional: 0, independent unconditional: 1057, dependent: 61, dependent conditional: 0, dependent unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1118, independent: 1012, independent conditional: 0, independent unconditional: 1012, dependent: 106, dependent conditional: 0, dependent unconditional: 106, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 106, independent: 45, independent conditional: 0, independent unconditional: 45, dependent: 61, dependent conditional: 0, dependent unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 106, independent: 45, independent conditional: 0, independent unconditional: 45, dependent: 61, dependent conditional: 0, dependent unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 883, independent: 317, independent conditional: 0, independent unconditional: 317, dependent: 565, dependent conditional: 0, dependent unconditional: 565, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 172000, independent: 166954, independent conditional: 0, independent unconditional: 166954, dependent: 3928, dependent conditional: 0, dependent unconditional: 3928, unknown: 1118, unknown conditional: 0, unknown unconditional: 1118] , Statistics on independence cache: Total cache size (in pairs): 1118, Positive cache size: 1057, Positive conditional cache size: 0, Positive unconditional cache size: 1057, Negative cache size: 61, Negative conditional cache size: 0, Negative unconditional cache size: 61, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Independence queries for same thread: 5130 - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 155596, independent: 147284, independent conditional: 147284, independent unconditional: 0, dependent: 8312, dependent conditional: 8312, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 151335, independent: 147284, independent conditional: 0, independent unconditional: 147284, dependent: 4051, dependent conditional: 0, dependent unconditional: 4051, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 66, independent: 66, independent conditional: 0, independent unconditional: 66, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 66, independent: 65, independent conditional: 0, independent unconditional: 65, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 1, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 1, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 12, independent: 12, independent conditional: 0, independent unconditional: 12, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 151335, independent: 147218, independent conditional: 0, independent unconditional: 147218, dependent: 4051, dependent conditional: 0, dependent unconditional: 4051, unknown: 66, unknown conditional: 0, unknown unconditional: 66] , Statistics on independence cache: Total cache size (in pairs): 1184, Positive cache size: 1123, Positive conditional cache size: 0, Positive unconditional cache size: 1123, Negative cache size: 61, Negative conditional cache size: 0, Negative unconditional cache size: 61, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Independence queries for same thread: 4261 - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 197907, independent: 185879, independent conditional: 185879, independent unconditional: 0, dependent: 12028, dependent conditional: 12028, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 193666, independent: 185879, independent conditional: 0, independent unconditional: 185879, dependent: 7787, dependent conditional: 0, dependent unconditional: 7787, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 244, independent: 227, independent conditional: 0, independent unconditional: 227, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 244, independent: 216, independent conditional: 0, independent unconditional: 216, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 28, independent: 11, independent conditional: 0, independent unconditional: 11, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 28, independent: 11, independent conditional: 0, independent unconditional: 11, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 202, independent: 69, independent conditional: 0, independent unconditional: 69, dependent: 133, dependent conditional: 0, dependent unconditional: 133, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 193666, independent: 185652, independent conditional: 0, independent unconditional: 185652, dependent: 7770, dependent conditional: 0, dependent unconditional: 7770, unknown: 244, unknown conditional: 0, unknown unconditional: 244] , Statistics on independence cache: Total cache size (in pairs): 1428, Positive cache size: 1350, Positive conditional cache size: 0, Positive unconditional cache size: 1350, Negative cache size: 78, Negative conditional cache size: 0, Negative unconditional cache size: 78, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Independence queries for same thread: 4241 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: t3_funThread1of1ForFork0 with 1 thread instances CFG has 7 procedures, 107 locations, 111 edges, 9 error locations. Started 1 CEGAR loops. OverallTime: 4.4s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 3.3s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 143 NumberOfCodeBlocks, 143 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 139 ConstructedInterpolants, 0 QuantifiedInterpolants, 434 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 107 locations, 111 edges, 9 error locations. Started 1 CEGAR loops. OverallTime: 2.7s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 1.9s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 44, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 269 NumberOfCodeBlocks, 269 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 263 ConstructedInterpolants, 0 QuantifiedInterpolants, 769 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: t2_funThread1of1ForFork2 with 1 thread instances CFG has 7 procedures, 107 locations, 111 edges, 9 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 1.5s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 60 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-19 19:24:44,191 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE