./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-difference-det.wvr.c --full-output --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking IA --traceabstraction.criterion.for.conditional.commutativity.checking LOOP -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b86fb0b7 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/weaver/popl20-difference-det.wvr.c -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 38e3acb82ec05e672eff9207911c10948d6c695f982992ce82b68981a799bba7 --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking IA --traceabstraction.criterion.for.conditional.commutativity.checking LOOP -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.conditional-comm-b86fb0b-m [2024-10-18 17:10:22,341 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-18 17:10:22,415 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-10-18 17:10:22,419 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-18 17:10:22,421 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-18 17:10:22,458 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-18 17:10:22,469 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-18 17:10:22,469 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-18 17:10:22,470 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-18 17:10:22,470 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-18 17:10:22,471 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-18 17:10:22,471 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-18 17:10:22,471 INFO L153 SettingsManager]: * Use SBE=true [2024-10-18 17:10:22,472 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-18 17:10:22,472 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-18 17:10:22,475 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-18 17:10:22,476 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-18 17:10:22,478 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-18 17:10:22,478 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-18 17:10:22,479 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-18 17:10:22,479 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-18 17:10:22,479 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-18 17:10:22,479 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-18 17:10:22,481 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-18 17:10:22,481 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-18 17:10:22,482 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-18 17:10:22,482 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-18 17:10:22,482 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-18 17:10:22,482 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-18 17:10:22,483 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-18 17:10:22,483 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-18 17:10:22,483 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-18 17:10:22,483 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-18 17:10:22,484 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-10-18 17:10:22,484 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-18 17:10:22,484 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-18 17:10:22,485 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-18 17:10:22,485 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-18 17:10:22,485 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-18 17:10:22,486 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-18 17:10:22,486 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-18 17:10:22,486 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 38e3acb82ec05e672eff9207911c10948d6c695f982992ce82b68981a799bba7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional conditional commutativity checking -> IA Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Criterion for conditional commutativity checking -> LOOP [2024-10-18 17:10:22,739 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-18 17:10:22,762 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-18 17:10:22,766 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-18 17:10:22,767 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-18 17:10:22,768 INFO L274 PluginConnector]: CDTParser initialized [2024-10-18 17:10:22,769 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-difference-det.wvr.c [2024-10-18 17:10:24,149 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-18 17:10:24,345 INFO L384 CDTParser]: Found 1 translation units. [2024-10-18 17:10:24,346 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-difference-det.wvr.c [2024-10-18 17:10:24,354 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/ef4df0693/542c6e8c1d424cbbab17349e0f67d433/FLAG0434a4c65 [2024-10-18 17:10:24,726 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/ef4df0693/542c6e8c1d424cbbab17349e0f67d433 [2024-10-18 17:10:24,729 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-18 17:10:24,730 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-18 17:10:24,734 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-18 17:10:24,734 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-18 17:10:24,739 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-18 17:10:24,740 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.10 05:10:24" (1/1) ... [2024-10-18 17:10:24,741 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dcc105e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 05:10:24, skipping insertion in model container [2024-10-18 17:10:24,741 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.10 05:10:24" (1/1) ... [2024-10-18 17:10:24,762 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-18 17:10:24,976 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-difference-det.wvr.c[2559,2572] [2024-10-18 17:10:24,981 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-18 17:10:24,992 INFO L200 MainTranslator]: Completed pre-run [2024-10-18 17:10:25,016 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-difference-det.wvr.c[2559,2572] [2024-10-18 17:10:25,020 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-18 17:10:25,042 INFO L204 MainTranslator]: Completed translation [2024-10-18 17:10:25,042 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 05:10:25 WrapperNode [2024-10-18 17:10:25,042 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-18 17:10:25,043 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-18 17:10:25,044 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-18 17:10:25,044 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-18 17:10:25,051 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 05:10:25" (1/1) ... [2024-10-18 17:10:25,064 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 05:10:25" (1/1) ... [2024-10-18 17:10:25,088 INFO L138 Inliner]: procedures = 22, calls = 21, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 101 [2024-10-18 17:10:25,088 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-18 17:10:25,089 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-18 17:10:25,089 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-18 17:10:25,089 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-18 17:10:25,098 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 05:10:25" (1/1) ... [2024-10-18 17:10:25,098 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 05:10:25" (1/1) ... [2024-10-18 17:10:25,101 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 05:10:25" (1/1) ... [2024-10-18 17:10:25,101 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 05:10:25" (1/1) ... [2024-10-18 17:10:25,106 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 05:10:25" (1/1) ... [2024-10-18 17:10:25,109 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 05:10:25" (1/1) ... [2024-10-18 17:10:25,110 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 05:10:25" (1/1) ... [2024-10-18 17:10:25,111 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 05:10:25" (1/1) ... [2024-10-18 17:10:25,113 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-18 17:10:25,115 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-18 17:10:25,115 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-18 17:10:25,115 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-18 17:10:25,116 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 05:10:25" (1/1) ... [2024-10-18 17:10:25,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-18 17:10:25,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 17:10:25,146 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-10-18 17:10:25,150 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-10-18 17:10:25,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-18 17:10:25,188 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-18 17:10:25,188 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-18 17:10:25,188 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-18 17:10:25,188 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-18 17:10:25,188 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-18 17:10:25,188 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-18 17:10:25,189 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-10-18 17:10:25,189 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-10-18 17:10:25,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-18 17:10:25,189 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-18 17:10:25,189 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-18 17:10:25,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-18 17:10:25,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-18 17:10:25,191 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-18 17:10:25,273 INFO L238 CfgBuilder]: Building ICFG [2024-10-18 17:10:25,275 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-18 17:10:25,459 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-18 17:10:25,460 INFO L287 CfgBuilder]: Performing block encoding [2024-10-18 17:10:25,627 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-18 17:10:25,628 INFO L314 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-18 17:10:25,628 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.10 05:10:25 BoogieIcfgContainer [2024-10-18 17:10:25,628 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-18 17:10:25,631 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-18 17:10:25,631 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-18 17:10:25,634 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-18 17:10:25,635 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.10 05:10:24" (1/3) ... [2024-10-18 17:10:25,636 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29242809 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.10 05:10:25, skipping insertion in model container [2024-10-18 17:10:25,636 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 05:10:25" (2/3) ... [2024-10-18 17:10:25,637 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29242809 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.10 05:10:25, skipping insertion in model container [2024-10-18 17:10:25,637 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.10 05:10:25" (3/3) ... [2024-10-18 17:10:25,639 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-difference-det.wvr.c [2024-10-18 17:10:25,656 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-18 17:10:25,656 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-18 17:10:25,657 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-18 17:10:25,725 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-18 17:10:25,767 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-18 17:10:25,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-18 17:10:25,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 17:10:25,770 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-18 17:10:25,772 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-10-18 17:10:25,855 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-18 17:10:25,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 17:10:25,877 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-18 17:10:25,884 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7818acc1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=LOOP, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-10-18 17:10:25,884 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-10-18 17:10:26,899 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-18 17:10:26,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 17:10:26,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1982951018, now seen corresponding path program 1 times [2024-10-18 17:10:26,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 17:10:26,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164880028] [2024-10-18 17:10:26,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:10:26,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:10:27,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:10:27,511 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 4 proven. 23 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-18 17:10:27,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 17:10:27,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164880028] [2024-10-18 17:10:27,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164880028] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-18 17:10:27,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1548207591] [2024-10-18 17:10:27,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:10:27,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 17:10:27,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 17:10:27,518 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-18 17:10:27,519 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-18 17:10:27,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:10:27,634 INFO L255 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-18 17:10:27,641 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 17:10:27,948 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 4 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 17:10:27,950 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-18 17:10:28,082 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-10-18 17:10:28,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1548207591] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-18 17:10:28,083 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-18 17:10:28,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11, 6] total 17 [2024-10-18 17:10:28,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306820066] [2024-10-18 17:10:28,086 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-18 17:10:28,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-18 17:10:28,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 17:10:28,186 INFO L85 PathProgramCache]: Analyzing trace with hash -905993412, now seen corresponding path program 1 times [2024-10-18 17:10:28,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:10:28,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:10:28,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:10:28,298 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-18 17:10:28,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:10:28,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:10:28,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:10:28,364 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-18 17:10:28,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-18 17:10:28,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2024-10-18 17:10:28,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 17:10:28,394 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 17:10:28,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.470588235294118) internal successors, (93), 17 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 17:10:28,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 17:10:29,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-18 17:10:29,151 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-18 17:10:29,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2,SelfDestructingSolverStorable1,SelfDestructingSolverStorable0 [2024-10-18 17:10:29,335 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-18 17:10:29,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 17:10:29,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1926328923, now seen corresponding path program 2 times [2024-10-18 17:10:29,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 17:10:29,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482344830] [2024-10-18 17:10:29,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:10:29,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:10:29,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:10:29,678 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 83 proven. 56 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-10-18 17:10:29,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 17:10:29,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482344830] [2024-10-18 17:10:29,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482344830] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-18 17:10:29,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1399467353] [2024-10-18 17:10:29,681 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-18 17:10:29,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 17:10:29,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 17:10:29,683 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-18 17:10:29,686 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-18 17:10:29,792 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-18 17:10:29,793 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-18 17:10:29,795 INFO L255 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-18 17:10:29,797 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 17:10:30,094 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 83 proven. 104 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-18 17:10:30,095 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-18 17:10:30,244 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 83 proven. 16 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-10-18 17:10:30,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1399467353] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-18 17:10:30,244 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-18 17:10:30,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 13, 6] total 19 [2024-10-18 17:10:30,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591741539] [2024-10-18 17:10:30,245 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-18 17:10:30,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-18 17:10:30,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 17:10:30,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-18 17:10:30,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2024-10-18 17:10:30,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 17:10:30,360 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 17:10:30,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.578947368421052) internal successors, (125), 19 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 17:10:30,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-10-18 17:10:30,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 17:10:31,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-18 17:10:31,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-10-18 17:10:31,172 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-18 17:10:31,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 17:10:31,356 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-18 17:10:31,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 17:10:31,356 INFO L85 PathProgramCache]: Analyzing trace with hash -442284837, now seen corresponding path program 3 times [2024-10-18 17:10:31,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 17:10:31,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448086899] [2024-10-18 17:10:31,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:10:31,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:10:31,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:10:31,686 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 91 proven. 150 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-10-18 17:10:31,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 17:10:31,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448086899] [2024-10-18 17:10:31,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448086899] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-18 17:10:31,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1808455886] [2024-10-18 17:10:31,687 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-18 17:10:31,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 17:10:31,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 17:10:31,689 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-18 17:10:31,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-18 17:10:31,802 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2024-10-18 17:10:31,802 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-18 17:10:31,806 INFO L255 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-18 17:10:31,809 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 17:10:32,249 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 75 proven. 278 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-18 17:10:32,251 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-18 17:10:32,481 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 95 proven. 88 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-10-18 17:10:32,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1808455886] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-18 17:10:32,481 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-18 17:10:32,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 17, 7] total 24 [2024-10-18 17:10:32,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346640604] [2024-10-18 17:10:32,482 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-18 17:10:32,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-10-18 17:10:32,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 17:10:32,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1519714064, now seen corresponding path program 1 times [2024-10-18 17:10:32,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:10:32,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:10:32,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:10:32,712 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2024-10-18 17:10:32,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:10:32,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:10:32,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:10:32,781 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2024-10-18 17:10:32,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1617970802, now seen corresponding path program 1 times [2024-10-18 17:10:32,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:10:32,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:10:32,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:10:32,912 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2024-10-18 17:10:32,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:10:32,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:10:32,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:10:32,978 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2024-10-18 17:10:32,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-10-18 17:10:32,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=643, Unknown=0, NotChecked=0, Total=756 [2024-10-18 17:10:32,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 17:10:32,999 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 17:10:32,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 7.892857142857143) internal successors, (221), 28 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 17:10:32,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-10-18 17:10:32,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2024-10-18 17:10:32,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 17:10:35,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-18 17:10:35,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-10-18 17:10:35,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2024-10-18 17:10:35,905 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-18 17:10:36,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,SelfDestructingSolverStorable8,SelfDestructingSolverStorable7,SelfDestructingSolverStorable6,SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 17:10:36,091 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-18 17:10:36,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 17:10:36,092 INFO L85 PathProgramCache]: Analyzing trace with hash 44091559, now seen corresponding path program 4 times [2024-10-18 17:10:36,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 17:10:36,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787530263] [2024-10-18 17:10:36,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:10:36,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:10:36,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:10:36,339 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 54 proven. 88 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2024-10-18 17:10:36,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 17:10:36,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787530263] [2024-10-18 17:10:36,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787530263] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-18 17:10:36,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1657856188] [2024-10-18 17:10:36,340 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-18 17:10:36,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 17:10:36,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 17:10:36,342 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-18 17:10:36,344 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-18 17:10:36,428 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-18 17:10:36,429 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-18 17:10:36,430 INFO L255 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-18 17:10:36,452 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 17:10:36,867 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 54 proven. 228 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-18 17:10:36,867 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-18 17:10:37,031 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 54 proven. 24 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2024-10-18 17:10:37,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1657856188] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-18 17:10:37,031 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-18 17:10:37,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 17, 6] total 23 [2024-10-18 17:10:37,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679521473] [2024-10-18 17:10:37,032 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-18 17:10:37,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-18 17:10:37,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 17:10:37,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-18 17:10:37,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=418, Unknown=0, NotChecked=0, Total=506 [2024-10-18 17:10:37,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 17:10:37,107 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 17:10:37,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 6.3478260869565215) internal successors, (146), 23 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 17:10:37,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-10-18 17:10:37,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2024-10-18 17:10:37,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 77 states. [2024-10-18 17:10:37,108 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 17:10:37,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-18 17:10:37,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-10-18 17:10:37,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2024-10-18 17:10:37,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-18 17:10:37,872 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-18 17:10:38,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-18 17:10:38,057 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-18 17:10:38,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 17:10:38,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1828165110, now seen corresponding path program 5 times [2024-10-18 17:10:38,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 17:10:38,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698133056] [2024-10-18 17:10:38,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:10:38,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:10:38,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:10:38,608 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 125 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2024-10-18 17:10:38,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 17:10:38,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698133056] [2024-10-18 17:10:38,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698133056] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-18 17:10:38,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1875828838] [2024-10-18 17:10:38,609 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-18 17:10:38,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 17:10:38,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 17:10:38,615 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-18 17:10:38,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-18 17:10:38,718 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2024-10-18 17:10:38,718 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-18 17:10:38,721 INFO L255 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 62 conjuncts are in the unsatisfiable core [2024-10-18 17:10:38,724 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 17:10:39,074 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 100 proven. 44 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-10-18 17:10:39,074 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-18 17:10:39,497 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 17 proven. 118 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2024-10-18 17:10:39,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1875828838] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-18 17:10:39,498 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-18 17:10:39,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 18 [2024-10-18 17:10:39,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991913449] [2024-10-18 17:10:39,498 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-18 17:10:39,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-18 17:10:39,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 17:10:40,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-18 17:10:40,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2024-10-18 17:10:40,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 17:10:40,370 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 17:10:40,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.894736842105263) internal successors, (131), 18 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 17:10:40,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-10-18 17:10:40,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2024-10-18 17:10:40,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 77 states. [2024-10-18 17:10:40,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-10-18 17:10:40,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 17:10:40,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-18 17:10:40,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-10-18 17:10:40,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2024-10-18 17:10:40,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-18 17:10:40,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-18 17:10:40,684 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-18 17:10:40,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 17:10:40,872 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-18 17:10:40,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 17:10:40,872 INFO L85 PathProgramCache]: Analyzing trace with hash 464481216, now seen corresponding path program 6 times [2024-10-18 17:10:40,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 17:10:40,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130282074] [2024-10-18 17:10:40,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:10:40,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:10:40,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:10:41,216 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 32 proven. 104 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2024-10-18 17:10:41,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 17:10:41,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130282074] [2024-10-18 17:10:41,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130282074] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-18 17:10:41,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [653730557] [2024-10-18 17:10:41,217 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-18 17:10:41,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 17:10:41,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 17:10:41,219 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-18 17:10:41,220 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-18 17:10:41,306 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2024-10-18 17:10:41,306 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-18 17:10:41,308 INFO L255 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-10-18 17:10:41,311 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 17:10:41,817 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 32 proven. 401 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 17:10:41,817 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-18 17:10:42,064 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 32 proven. 36 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2024-10-18 17:10:42,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [653730557] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-18 17:10:42,065 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-18 17:10:42,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 24, 7] total 34 [2024-10-18 17:10:42,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959775547] [2024-10-18 17:10:42,065 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-18 17:10:42,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-10-18 17:10:42,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 17:10:42,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-10-18 17:10:42,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=959, Unknown=0, NotChecked=0, Total=1122 [2024-10-18 17:10:42,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 17:10:42,152 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 17:10:42,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 5.823529411764706) internal successors, (198), 34 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 17:10:42,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-10-18 17:10:42,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2024-10-18 17:10:42,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 77 states. [2024-10-18 17:10:42,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-10-18 17:10:42,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-10-18 17:10:42,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 17:10:56,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-18 17:10:56,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-10-18 17:10:56,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 168 states. [2024-10-18 17:10:56,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-10-18 17:10:56,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-18 17:10:56,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2024-10-18 17:10:56,513 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2024-10-18 17:10:56,514 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2024-10-18 17:10:56,515 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-10-18 17:10:56,516 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-10-18 17:10:56,516 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-10-18 17:10:56,535 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-18 17:10:56,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-10-18 17:10:56,726 INFO L414 BasicCegarLoop]: Path program histogram: [6, 1, 1, 1] [2024-10-18 17:10:56,730 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-18 17:10:56,730 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-18 17:10:56,732 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.10 05:10:56 BasicIcfg [2024-10-18 17:10:56,733 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-18 17:10:56,733 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-18 17:10:56,733 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-18 17:10:56,733 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-18 17:10:56,734 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.10 05:10:25" (3/4) ... [2024-10-18 17:10:56,735 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-18 17:10:56,738 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-10-18 17:10:56,738 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-10-18 17:10:56,738 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-10-18 17:10:56,738 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread4 [2024-10-18 17:10:56,742 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 52 nodes and edges [2024-10-18 17:10:56,743 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-10-18 17:10:56,743 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-10-18 17:10:56,743 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-18 17:10:56,821 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.graphml [2024-10-18 17:10:56,822 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.yml [2024-10-18 17:10:56,822 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-18 17:10:56,822 INFO L158 Benchmark]: Toolchain (without parser) took 32092.49ms. Allocated memory was 134.2MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 66.6MB in the beginning and 807.4MB in the end (delta: -740.7MB). Peak memory consumption was 373.2MB. Max. memory is 16.1GB. [2024-10-18 17:10:56,823 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 134.2MB. Free memory was 99.3MB in the beginning and 99.1MB in the end (delta: 178.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-18 17:10:56,823 INFO L158 Benchmark]: CACSL2BoogieTranslator took 308.80ms. Allocated memory was 134.2MB in the beginning and 174.1MB in the end (delta: 39.8MB). Free memory was 66.4MB in the beginning and 142.2MB in the end (delta: -75.8MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. [2024-10-18 17:10:56,823 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.16ms. Allocated memory is still 174.1MB. Free memory was 142.2MB in the beginning and 140.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-18 17:10:56,823 INFO L158 Benchmark]: Boogie Preprocessor took 24.50ms. Allocated memory is still 174.1MB. Free memory was 140.1MB in the beginning and 138.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-18 17:10:56,824 INFO L158 Benchmark]: RCFGBuilder took 513.98ms. Allocated memory is still 174.1MB. Free memory was 138.4MB in the beginning and 111.1MB in the end (delta: 27.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-10-18 17:10:56,824 INFO L158 Benchmark]: TraceAbstraction took 31101.52ms. Allocated memory was 174.1MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 109.9MB in the beginning and 811.6MB in the end (delta: -701.7MB). Peak memory consumption was 443.2MB. Max. memory is 16.1GB. [2024-10-18 17:10:56,824 INFO L158 Benchmark]: Witness Printer took 88.81ms. Allocated memory is still 1.2GB. Free memory was 811.6MB in the beginning and 807.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-18 17:10:56,826 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 134.2MB. Free memory was 99.3MB in the beginning and 99.1MB in the end (delta: 178.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 308.80ms. Allocated memory was 134.2MB in the beginning and 174.1MB in the end (delta: 39.8MB). Free memory was 66.4MB in the beginning and 142.2MB in the end (delta: -75.8MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.16ms. Allocated memory is still 174.1MB. Free memory was 142.2MB in the beginning and 140.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.50ms. Allocated memory is still 174.1MB. Free memory was 140.1MB in the beginning and 138.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 513.98ms. Allocated memory is still 174.1MB. Free memory was 138.4MB in the beginning and 111.1MB in the end (delta: 27.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 31101.52ms. Allocated memory was 174.1MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 109.9MB in the beginning and 811.6MB in the end (delta: -701.7MB). Peak memory consumption was 443.2MB. Max. memory is 16.1GB. * Witness Printer took 88.81ms. Allocated memory is still 1.2GB. Free memory was 811.6MB in the beginning and 807.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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: 802970, independent: 747056, independent conditional: 745828, independent unconditional: 1228, dependent: 55914, dependent conditional: 55906, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 747122, independent: 747056, independent conditional: 745828, independent unconditional: 1228, dependent: 66, dependent conditional: 58, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ ConditionTransformingIndependenceRelation.Independence Queries: [ total: 747122, independent: 747056, independent conditional: 745828, independent unconditional: 1228, dependent: 66, dependent conditional: 58, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 747122, independent: 747056, independent conditional: 745828, independent unconditional: 1228, dependent: 66, dependent conditional: 58, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 810133, independent: 747056, independent conditional: 745828, independent unconditional: 1228, dependent: 63077, dependent conditional: 63061, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 810133, independent: 747056, independent conditional: 31630, independent unconditional: 715426, dependent: 63077, dependent conditional: 3518, dependent unconditional: 59559, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 810133, independent: 747056, independent conditional: 31630, independent unconditional: 715426, dependent: 63077, dependent conditional: 3518, dependent unconditional: 59559, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1162, independent: 1146, independent conditional: 141, independent unconditional: 1005, dependent: 16, dependent conditional: 8, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1162, independent: 1000, independent conditional: 0, independent unconditional: 1000, dependent: 162, dependent conditional: 0, dependent unconditional: 162, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 162, independent: 146, independent conditional: 141, independent unconditional: 5, dependent: 16, dependent conditional: 8, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 162, independent: 146, independent conditional: 141, independent unconditional: 5, dependent: 16, dependent conditional: 8, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1847, independent: 1253, independent conditional: 990, independent unconditional: 263, dependent: 594, dependent conditional: 53, dependent unconditional: 542, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 810133, independent: 745910, independent conditional: 31489, independent unconditional: 714421, dependent: 63061, dependent conditional: 3510, dependent unconditional: 59551, unknown: 1162, unknown conditional: 149, unknown unconditional: 1013] , Statistics on independence cache: Total cache size (in pairs): 1162, Positive cache size: 1146, Positive conditional cache size: 141, Positive unconditional cache size: 1005, Negative cache size: 16, Negative conditional cache size: 8, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 773741, Maximal queried relation: 4, ConditionTransformingIndependenceRelation.Independence Queries: [ total: 810133, independent: 747056, independent conditional: 745828, independent unconditional: 1228, dependent: 63077, dependent conditional: 63061, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 810133, independent: 747056, independent conditional: 31630, independent unconditional: 715426, dependent: 63077, dependent conditional: 3518, dependent unconditional: 59559, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 810133, independent: 747056, independent conditional: 31630, independent unconditional: 715426, dependent: 63077, dependent conditional: 3518, dependent unconditional: 59559, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1162, independent: 1146, independent conditional: 141, independent unconditional: 1005, dependent: 16, dependent conditional: 8, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1162, independent: 1000, independent conditional: 0, independent unconditional: 1000, dependent: 162, dependent conditional: 0, dependent unconditional: 162, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 162, independent: 146, independent conditional: 141, independent unconditional: 5, dependent: 16, dependent conditional: 8, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 162, independent: 146, independent conditional: 141, independent unconditional: 5, dependent: 16, dependent conditional: 8, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1847, independent: 1253, independent conditional: 990, independent unconditional: 263, dependent: 594, dependent conditional: 53, dependent unconditional: 542, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 810133, independent: 745910, independent conditional: 31489, independent unconditional: 714421, dependent: 63061, dependent conditional: 3510, dependent unconditional: 59551, unknown: 1162, unknown conditional: 149, unknown unconditional: 1013] , Statistics on independence cache: Total cache size (in pairs): 1162, Positive cache size: 1146, Positive conditional cache size: 141, Positive unconditional cache size: 1005, Negative cache size: 16, Negative conditional cache size: 8, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 773741 ], Independence queries for same thread: 55848, Persistent sets #1 benchmarks: Persistent set computation time: 1.0s, Number of persistent set computation: 1373, Number of trivial persistent sets: 1107, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1233, independent: 1225, independent conditional: 0, independent unconditional: 1225, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 802970, independent: 747056, independent conditional: 745828, independent unconditional: 1228, dependent: 55914, dependent conditional: 55906, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 747122, independent: 747056, independent conditional: 745828, independent unconditional: 1228, dependent: 66, dependent conditional: 58, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ ConditionTransformingIndependenceRelation.Independence Queries: [ total: 747122, independent: 747056, independent conditional: 745828, independent unconditional: 1228, dependent: 66, dependent conditional: 58, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 747122, independent: 747056, independent conditional: 745828, independent unconditional: 1228, dependent: 66, dependent conditional: 58, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 810133, independent: 747056, independent conditional: 745828, independent unconditional: 1228, dependent: 63077, dependent conditional: 63061, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 810133, independent: 747056, independent conditional: 31630, independent unconditional: 715426, dependent: 63077, dependent conditional: 3518, dependent unconditional: 59559, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 810133, independent: 747056, independent conditional: 31630, independent unconditional: 715426, dependent: 63077, dependent conditional: 3518, dependent unconditional: 59559, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1162, independent: 1146, independent conditional: 141, independent unconditional: 1005, dependent: 16, dependent conditional: 8, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1162, independent: 1000, independent conditional: 0, independent unconditional: 1000, dependent: 162, dependent conditional: 0, dependent unconditional: 162, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 162, independent: 146, independent conditional: 141, independent unconditional: 5, dependent: 16, dependent conditional: 8, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 162, independent: 146, independent conditional: 141, independent unconditional: 5, dependent: 16, dependent conditional: 8, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1847, independent: 1253, independent conditional: 990, independent unconditional: 263, dependent: 594, dependent conditional: 53, dependent unconditional: 542, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 810133, independent: 745910, independent conditional: 31489, independent unconditional: 714421, dependent: 63061, dependent conditional: 3510, dependent unconditional: 59551, unknown: 1162, unknown conditional: 149, unknown unconditional: 1013] , Statistics on independence cache: Total cache size (in pairs): 1162, Positive cache size: 1146, Positive conditional cache size: 141, Positive unconditional cache size: 1005, Negative cache size: 16, Negative conditional cache size: 8, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 773741, Maximal queried relation: 4, ConditionTransformingIndependenceRelation.Independence Queries: [ total: 810133, independent: 747056, independent conditional: 745828, independent unconditional: 1228, dependent: 63077, dependent conditional: 63061, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 810133, independent: 747056, independent conditional: 31630, independent unconditional: 715426, dependent: 63077, dependent conditional: 3518, dependent unconditional: 59559, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 810133, independent: 747056, independent conditional: 31630, independent unconditional: 715426, dependent: 63077, dependent conditional: 3518, dependent unconditional: 59559, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1162, independent: 1146, independent conditional: 141, independent unconditional: 1005, dependent: 16, dependent conditional: 8, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1162, independent: 1000, independent conditional: 0, independent unconditional: 1000, dependent: 162, dependent conditional: 0, dependent unconditional: 162, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 162, independent: 146, independent conditional: 141, independent unconditional: 5, dependent: 16, dependent conditional: 8, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 162, independent: 146, independent conditional: 141, independent unconditional: 5, dependent: 16, dependent conditional: 8, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1847, independent: 1253, independent conditional: 990, independent unconditional: 263, dependent: 594, dependent conditional: 53, dependent unconditional: 542, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 810133, independent: 745910, independent conditional: 31489, independent unconditional: 714421, dependent: 63061, dependent conditional: 3510, dependent unconditional: 59551, unknown: 1162, unknown conditional: 149, unknown unconditional: 1013] , Statistics on independence cache: Total cache size (in pairs): 1162, Positive cache size: 1146, Positive conditional cache size: 141, Positive unconditional cache size: 1005, Negative cache size: 16, Negative conditional cache size: 8, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 773741 ], Independence queries for same thread: 55848 - PositiveResult [Line: 99]: 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: ULTIMATE.start with 1 thread instances CFG has 9 procedures, 61 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 30.9s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 6, EmptinessCheckTime: 20.8s, 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: 361, 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: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 5.8s InterpolantComputationTime, 1206 NumberOfCodeBlocks, 1201 NumberOfCodeBlocksAsserted, 39 NumberOfCheckSat, 1791 ConstructedInterpolants, 0 QuantifiedInterpolants, 8741 SizeOfPredicates, 12 NumberOfNonLiveVariables, 1791 ConjunctsInSsa, 139 ConjunctsInUnsatCore, 18 InterpolantComputations, 0 PerfectInterpolantSequences, 2960/4884 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: ConditionalCommutativityOverallTime: 1.9s, ConditionalCommutativityCheckTime: 1.3s, ConditionalCommutativityIAIntegrations: 2, ConditionalCommutativityDFSRestarts: 0, ConditionalCommutativityCommutingCounterexamples: 0, ConditionalCommutativityConditionCalculations: 3, ConditionalCommutativityTraceChecks: 3, ConditionalCommutativityImperfectProofs: 1 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-18 17:10:56,856 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2024-10-18 17:10:57,052 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