./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-1.i --full-output --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking COUNTEREXAMPLE --traceabstraction.criterion.for.conditional.commutativity.checking LOOP -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b86fb0b7 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-1.i -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 81147b3e42a82bd92b2fd1c17836bc41bf8598e66ad2317620561a8ac507fa9a --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking COUNTEREXAMPLE --traceabstraction.criterion.for.conditional.commutativity.checking LOOP -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.conditional-comm-b86fb0b-m [2024-10-17 14:47:46,420 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-17 14:47:46,478 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-10-17 14:47:46,483 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-17 14:47:46,484 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-17 14:47:46,508 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-17 14:47:46,510 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-17 14:47:46,510 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-17 14:47:46,511 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-17 14:47:46,512 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-17 14:47:46,513 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-17 14:47:46,513 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-17 14:47:46,513 INFO L153 SettingsManager]: * Use SBE=true [2024-10-17 14:47:46,514 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-17 14:47:46,514 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-17 14:47:46,515 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-17 14:47:46,516 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-17 14:47:46,516 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-17 14:47:46,516 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-17 14:47:46,516 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-17 14:47:46,516 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-17 14:47:46,518 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-17 14:47:46,518 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-17 14:47:46,518 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-17 14:47:46,519 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-17 14:47:46,519 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-17 14:47:46,521 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-17 14:47:46,521 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-17 14:47:46,521 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-17 14:47:46,521 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-17 14:47:46,521 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-17 14:47:46,522 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-17 14:47:46,522 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-17 14:47:46,522 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-10-17 14:47:46,522 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-17 14:47:46,522 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-17 14:47:46,522 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-17 14:47:46,522 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-17 14:47:46,523 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-17 14:47:46,523 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-17 14:47:46,523 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-17 14:47:46,524 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81147b3e42a82bd92b2fd1c17836bc41bf8598e66ad2317620561a8ac507fa9a Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional conditional commutativity checking -> COUNTEREXAMPLE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Criterion for conditional commutativity checking -> LOOP [2024-10-17 14:47:46,717 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-17 14:47:46,742 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-17 14:47:46,746 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-17 14:47:46,747 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-17 14:47:46,747 INFO L274 PluginConnector]: CDTParser initialized [2024-10-17 14:47:46,748 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-1.i [2024-10-17 14:47:48,039 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-17 14:47:48,280 INFO L384 CDTParser]: Found 1 translation units. [2024-10-17 14:47:48,282 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-1.i [2024-10-17 14:47:48,305 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/ee150bf1c/68912075f75940ccb14967c9354910f9/FLAGb67b25d09 [2024-10-17 14:47:48,605 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/ee150bf1c/68912075f75940ccb14967c9354910f9 [2024-10-17 14:47:48,607 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-17 14:47:48,608 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-17 14:47:48,609 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-17 14:47:48,609 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-17 14:47:48,614 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-17 14:47:48,615 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 02:47:48" (1/1) ... [2024-10-17 14:47:48,615 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77998396 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 02:47:48, skipping insertion in model container [2024-10-17 14:47:48,615 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 02:47:48" (1/1) ... [2024-10-17 14:47:48,652 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-17 14:47:48,808 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-1.i[820,833] [2024-10-17 14:47:49,063 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-17 14:47:49,072 INFO L200 MainTranslator]: Completed pre-run [2024-10-17 14:47:49,081 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-1.i[820,833] [2024-10-17 14:47:49,115 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-17 14:47:49,237 INFO L204 MainTranslator]: Completed translation [2024-10-17 14:47:49,238 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 02:47:49 WrapperNode [2024-10-17 14:47:49,238 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-17 14:47:49,239 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-17 14:47:49,239 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-17 14:47:49,240 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-17 14:47:49,246 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 02:47:49" (1/1) ... [2024-10-17 14:47:49,268 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 02:47:49" (1/1) ... [2024-10-17 14:47:49,291 INFO L138 Inliner]: procedures = 364, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 63 [2024-10-17 14:47:49,291 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-17 14:47:49,292 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-17 14:47:49,292 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-17 14:47:49,292 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-17 14:47:49,299 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 02:47:49" (1/1) ... [2024-10-17 14:47:49,300 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 02:47:49" (1/1) ... [2024-10-17 14:47:49,305 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 02:47:49" (1/1) ... [2024-10-17 14:47:49,306 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 02:47:49" (1/1) ... [2024-10-17 14:47:49,313 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 02:47:49" (1/1) ... [2024-10-17 14:47:49,320 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 02:47:49" (1/1) ... [2024-10-17 14:47:49,321 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 02:47:49" (1/1) ... [2024-10-17 14:47:49,322 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 02:47:49" (1/1) ... [2024-10-17 14:47:49,327 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-17 14:47:49,328 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-17 14:47:49,328 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-17 14:47:49,328 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-17 14:47:49,329 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 02:47:49" (1/1) ... [2024-10-17 14:47:49,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-17 14:47:49,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 14:47:49,369 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-10-17 14:47:49,372 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-10-17 14:47:49,409 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-17 14:47:49,409 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-17 14:47:49,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-17 14:47:49,410 INFO L130 BoogieDeclarations]: Found specification of procedure thread_function_mutex [2024-10-17 14:47:49,410 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_function_mutex [2024-10-17 14:47:49,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-17 14:47:49,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-17 14:47:49,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-17 14:47:49,412 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-17 14:47:49,534 INFO L238 CfgBuilder]: Building ICFG [2024-10-17 14:47:49,537 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-17 14:47:49,675 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-17 14:47:49,676 INFO L287 CfgBuilder]: Performing block encoding [2024-10-17 14:47:49,762 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-17 14:47:49,762 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-17 14:47:49,763 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 02:47:49 BoogieIcfgContainer [2024-10-17 14:47:49,763 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-17 14:47:49,765 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-17 14:47:49,765 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-17 14:47:49,768 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-17 14:47:49,768 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 02:47:48" (1/3) ... [2024-10-17 14:47:49,769 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d9f26fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 02:47:49, skipping insertion in model container [2024-10-17 14:47:49,769 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 02:47:49" (2/3) ... [2024-10-17 14:47:49,770 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d9f26fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 02:47:49, skipping insertion in model container [2024-10-17 14:47:49,770 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 02:47:49" (3/3) ... [2024-10-17 14:47:49,771 INFO L112 eAbstractionObserver]: Analyzing ICFG pthread-demo-datarace-1.i [2024-10-17 14:47:49,785 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-17 14:47:49,785 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-17 14:47:49,785 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-17 14:47:49,805 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-17 14:47:49,850 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-17 14:47:49,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-17 14:47:49,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 14:47:49,852 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-17 14:47:49,853 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-10-17 14:47:49,915 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-17 14:47:49,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 14:47:49,931 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-17 14:47:49,936 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;@7f333d9f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=COUNTEREXAMPLE, mConComCheckerCriterion=LOOP, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-10-17 14:47:49,936 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-17 14:47:50,181 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-17 14:47:50,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 14:47:50,184 INFO L85 PathProgramCache]: Analyzing trace with hash -308849241, now seen corresponding path program 1 times [2024-10-17 14:47:50,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 14:47:50,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809255123] [2024-10-17 14:47:50,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 14:47:50,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 14:47:50,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 14:47:50,450 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 14:47:50,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 14:47:50,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809255123] [2024-10-17 14:47:50,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809255123] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 14:47:50,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 14:47:50,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-17 14:47:50,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014339929] [2024-10-17 14:47:50,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 14:47:50,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-17 14:47:50,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 14:47:50,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-17 14:47:50,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-17 14:47:50,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 14:47:50,484 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 14:47:50,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 14:47:50,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 14:47:50,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 14:47:50,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-17 14:47:50,542 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-17 14:47:50,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 14:47:50,543 INFO L85 PathProgramCache]: Analyzing trace with hash -394817015, now seen corresponding path program 1 times [2024-10-17 14:47:50,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 14:47:50,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45323030] [2024-10-17 14:47:50,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 14:47:50,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 14:47:50,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 14:47:50,660 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 14:47:50,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 14:47:50,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45323030] [2024-10-17 14:47:50,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45323030] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 14:47:50,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [660769033] [2024-10-17 14:47:50,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 14:47:50,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 14:47:50,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 14:47:50,664 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-17 14:47:50,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-17 14:47:50,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 14:47:50,759 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-17 14:47:50,762 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 14:47:50,812 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 14:47:50,812 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 14:47:50,849 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 14:47:50,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [660769033] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 14:47:50,850 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 14:47:50,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-10-17 14:47:50,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795084526] [2024-10-17 14:47:50,851 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 14:47:50,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-17 14:47:50,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 14:47:50,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-17 14:47:50,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-17 14:47:50,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 14:47:50,853 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 14:47:50,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 14:47:50,853 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 14:47:50,853 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 14:47:50,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 14:47:50,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 14:47:50,979 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-17 14:47:51,168 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,SelfDestructingSolverStorable1 [2024-10-17 14:47:51,169 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-17 14:47:51,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 14:47:51,171 INFO L85 PathProgramCache]: Analyzing trace with hash 514676783, now seen corresponding path program 2 times [2024-10-17 14:47:51,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 14:47:51,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541436230] [2024-10-17 14:47:51,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 14:47:51,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 14:47:51,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 14:47:51,383 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 5 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 14:47:51,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 14:47:51,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541436230] [2024-10-17 14:47:51,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541436230] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 14:47:51,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1724145842] [2024-10-17 14:47:51,384 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-17 14:47:51,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 14:47:51,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 14:47:51,386 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-17 14:47:51,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-17 14:47:51,484 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-17 14:47:51,484 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 14:47:51,485 INFO L255 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-17 14:47:51,487 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 14:47:51,552 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 5 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 14:47:51,552 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 14:47:51,636 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 5 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 14:47:51,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1724145842] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 14:47:51,636 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 14:47:51,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-10-17 14:47:51,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527267610] [2024-10-17 14:47:51,636 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 14:47:51,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-17 14:47:51,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 14:47:51,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-17 14:47:51,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-10-17 14:47:51,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 14:47:51,638 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 14:47:51,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.692307692307692) internal successors, (113), 13 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 14:47:51,638 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 14:47:51,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-17 14:47:51,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 14:47:51,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 14:47:51,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 14:47:51,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-17 14:47:51,888 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-17 14:47:52,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 14:47:52,077 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-17 14:47:52,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 14:47:52,078 INFO L85 PathProgramCache]: Analyzing trace with hash -2015301381, now seen corresponding path program 3 times [2024-10-17 14:47:52,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 14:47:52,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856896528] [2024-10-17 14:47:52,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 14:47:52,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 14:47:52,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 14:47:52,376 INFO L134 CoverageAnalysis]: Checked inductivity of 521 backedges. 11 proven. 510 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 14:47:52,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 14:47:52,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856896528] [2024-10-17 14:47:52,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856896528] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 14:47:52,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [671196011] [2024-10-17 14:47:52,377 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-17 14:47:52,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 14:47:52,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 14:47:52,379 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-17 14:47:52,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-17 14:47:52,590 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2024-10-17 14:47:52,590 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 14:47:52,592 INFO L255 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-17 14:47:52,596 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 14:47:52,870 INFO L134 CoverageAnalysis]: Checked inductivity of 521 backedges. 0 proven. 521 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 14:47:52,871 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 14:47:53,242 INFO L134 CoverageAnalysis]: Checked inductivity of 521 backedges. 0 proven. 521 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 14:47:53,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [671196011] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 14:47:53,243 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 14:47:53,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14, 14] total 33 [2024-10-17 14:47:53,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898397980] [2024-10-17 14:47:53,244 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 14:47:53,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-10-17 14:47:53,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 14:47:53,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-10-17 14:47:53,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=308, Invalid=748, Unknown=0, NotChecked=0, Total=1056 [2024-10-17 14:47:53,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 14:47:53,249 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 14:47:53,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 9.333333333333334) internal successors, (308), 33 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 14:47:53,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 14:47:53,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-17 14:47:53,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-10-17 14:47:53,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 14:47:53,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 14:47:53,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 14:47:53,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-17 14:47:53,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-10-17 14:47:53,849 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-17 14:47:54,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 14:47:54,038 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-17 14:47:54,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 14:47:54,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1455873890, now seen corresponding path program 4 times [2024-10-17 14:47:54,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 14:47:54,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794031652] [2024-10-17 14:47:54,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 14:47:54,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 14:47:54,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 14:47:56,632 INFO L134 CoverageAnalysis]: Checked inductivity of 1940 backedges. 0 proven. 1940 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 14:47:56,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 14:47:56,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794031652] [2024-10-17 14:47:56,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794031652] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 14:47:56,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [689623794] [2024-10-17 14:47:56,634 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-17 14:47:56,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 14:47:56,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 14:47:56,641 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) [2024-10-17 14:47:56,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-17 14:47:56,841 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-17 14:47:56,841 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 14:47:56,845 INFO L255 TraceCheckSpWp]: Trace formula consists of 878 conjuncts, 128 conjuncts are in the unsatisfiable core [2024-10-17 14:47:56,850 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 14:47:57,126 INFO L134 CoverageAnalysis]: Checked inductivity of 1940 backedges. 0 proven. 1940 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 14:47:57,126 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 14:47:57,378 INFO L134 CoverageAnalysis]: Checked inductivity of 1940 backedges. 0 proven. 1940 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 14:47:57,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [689623794] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 14:47:57,379 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 14:47:57,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 43, 43] total 44 [2024-10-17 14:47:57,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789892763] [2024-10-17 14:47:57,379 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 14:47:57,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2024-10-17 14:47:57,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 14:47:57,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2024-10-17 14:47:57,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1892, Unknown=0, NotChecked=0, Total=1980 [2024-10-17 14:47:57,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 14:47:57,381 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 14:47:57,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 4.711111111111111) internal successors, (212), 44 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 14:47:57,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 14:47:57,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-17 14:47:57,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-10-17 14:47:57,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2024-10-17 14:47:57,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 14:48:00,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 14:48:00,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 14:48:00,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-17 14:48:00,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-10-17 14:48:00,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-10-17 14:48:00,425 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-17 14:48:00,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 14:48:00,614 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-17 14:48:00,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 14:48:00,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1649008388, now seen corresponding path program 5 times [2024-10-17 14:48:00,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 14:48:00,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569593379] [2024-10-17 14:48:00,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 14:48:00,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 14:48:00,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 14:48:01,213 INFO L134 CoverageAnalysis]: Checked inductivity of 2142 backedges. 2045 proven. 96 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-17 14:48:01,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 14:48:01,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569593379] [2024-10-17 14:48:01,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569593379] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 14:48:01,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2089303903] [2024-10-17 14:48:01,214 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-17 14:48:01,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 14:48:01,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 14:48:01,216 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) [2024-10-17 14:48:01,220 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-17 14:48:01,490 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 22 check-sat command(s) [2024-10-17 14:48:01,491 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 14:48:01,493 INFO L255 TraceCheckSpWp]: Trace formula consists of 918 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-17 14:48:01,497 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 14:48:01,684 INFO L134 CoverageAnalysis]: Checked inductivity of 2142 backedges. 2141 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-17 14:48:01,684 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-17 14:48:01,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2089303903] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 14:48:01,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-17 14:48:01,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [23] total 24 [2024-10-17 14:48:01,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368106097] [2024-10-17 14:48:01,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 14:48:01,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-17 14:48:01,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 14:48:01,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-17 14:48:01,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=256, Invalid=296, Unknown=0, NotChecked=0, Total=552 [2024-10-17 14:48:01,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 14:48:01,689 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 14:48:01,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 9.565217391304348) internal successors, (220), 23 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 14:48:01,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 14:48:01,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-17 14:48:01,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-10-17 14:48:01,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2024-10-17 14:48:01,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2024-10-17 14:48:01,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 14:48:02,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 14:48:02,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 14:48:02,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-17 14:48:02,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-10-17 14:48:02,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-10-17 14:48:02,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-17 14:48:02,080 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-17 14:48:02,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 14:48:02,271 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-17 14:48:02,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 14:48:02,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1173193893, now seen corresponding path program 6 times [2024-10-17 14:48:02,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 14:48:02,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256321594] [2024-10-17 14:48:02,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 14:48:02,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 14:48:02,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 14:48:02,807 INFO L134 CoverageAnalysis]: Checked inductivity of 2041 backedges. 1849 proven. 192 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 14:48:02,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 14:48:02,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256321594] [2024-10-17 14:48:02,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256321594] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 14:48:02,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [522136044] [2024-10-17 14:48:02,810 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-17 14:48:02,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 14:48:02,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 14:48:02,813 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) [2024-10-17 14:48:02,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-17 14:48:03,205 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 21 check-sat command(s) [2024-10-17 14:48:03,206 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 14:48:03,208 INFO L255 TraceCheckSpWp]: Trace formula consists of 897 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-17 14:48:03,211 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 14:48:03,389 INFO L134 CoverageAnalysis]: Checked inductivity of 2041 backedges. 2041 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 14:48:03,389 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-17 14:48:03,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [522136044] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 14:48:03,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-17 14:48:03,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [23] total 24 [2024-10-17 14:48:03,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252330214] [2024-10-17 14:48:03,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 14:48:03,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-17 14:48:03,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 14:48:03,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-17 14:48:03,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=256, Invalid=296, Unknown=0, NotChecked=0, Total=552 [2024-10-17 14:48:03,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 14:48:03,393 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 14:48:03,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 9.347826086956522) internal successors, (215), 23 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 14:48:03,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 14:48:03,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-17 14:48:03,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-10-17 14:48:03,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2024-10-17 14:48:03,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2024-10-17 14:48:03,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-10-17 14:48:03,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 14:48:03,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 14:48:03,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 14:48:03,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-17 14:48:03,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-10-17 14:48:03,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-10-17 14:48:03,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-17 14:48:03,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-17 14:48:03,830 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-17 14:48:04,019 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,SelfDestructingSolverStorable6 [2024-10-17 14:48:04,020 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-17 14:48:04,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 14:48:04,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1886786925, now seen corresponding path program 7 times [2024-10-17 14:48:04,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 14:48:04,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592184781] [2024-10-17 14:48:04,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 14:48:04,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 14:48:04,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 14:48:04,581 INFO L134 CoverageAnalysis]: Checked inductivity of 1844 backedges. 20 proven. 1824 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 14:48:04,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 14:48:04,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592184781] [2024-10-17 14:48:04,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592184781] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 14:48:04,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1022179560] [2024-10-17 14:48:04,584 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-17 14:48:04,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 14:48:04,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 14:48:04,586 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-17 14:48:04,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-17 14:48:04,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 14:48:04,779 INFO L255 TraceCheckSpWp]: Trace formula consists of 859 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-10-17 14:48:04,782 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 14:48:04,951 INFO L134 CoverageAnalysis]: Checked inductivity of 1844 backedges. 20 proven. 1824 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 14:48:04,952 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 14:48:05,286 INFO L134 CoverageAnalysis]: Checked inductivity of 1844 backedges. 20 proven. 1824 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 14:48:05,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1022179560] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 14:48:05,286 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 14:48:05,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 23 [2024-10-17 14:48:05,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640447116] [2024-10-17 14:48:05,288 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 14:48:05,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-17 14:48:05,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 14:48:05,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-17 14:48:05,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2024-10-17 14:48:05,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 14:48:05,289 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 14:48:05,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 9.391304347826088) internal successors, (216), 23 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 14:48:05,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 14:48:05,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-17 14:48:05,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-10-17 14:48:05,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2024-10-17 14:48:05,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2024-10-17 14:48:05,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-10-17 14:48:05,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-10-17 14:48:05,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 14:48:13,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 14:48:13,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 14:48:13,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-17 14:48:13,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 253 states. [2024-10-17 14:48:13,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-10-17 14:48:13,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-17 14:48:13,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-17 14:48:13,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-17 14:48:13,287 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-10-17 14:48:13,288 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2024-10-17 14:48:13,303 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-17 14:48:13,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 14:48:13,497 INFO L414 BasicCegarLoop]: Path program histogram: [7, 1] [2024-10-17 14:48:13,501 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-17 14:48:13,501 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-17 14:48:13,505 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.10 02:48:13 BasicIcfg [2024-10-17 14:48:13,505 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-17 14:48:13,506 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-17 14:48:13,506 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-17 14:48:13,506 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-17 14:48:13,506 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 02:47:49" (3/4) ... [2024-10-17 14:48:13,508 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-17 14:48:13,510 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread_function_mutex [2024-10-17 14:48:13,513 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 44 nodes and edges [2024-10-17 14:48:13,513 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-10-17 14:48:13,513 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-10-17 14:48:13,513 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-17 14:48:13,596 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.graphml [2024-10-17 14:48:13,597 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.yml [2024-10-17 14:48:13,597 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-17 14:48:13,598 INFO L158 Benchmark]: Toolchain (without parser) took 24989.41ms. Allocated memory was 159.4MB in the beginning and 559.9MB in the end (delta: 400.6MB). Free memory was 83.9MB in the beginning and 381.5MB in the end (delta: -297.6MB). Peak memory consumption was 104.9MB. Max. memory is 16.1GB. [2024-10-17 14:48:13,598 INFO L158 Benchmark]: CDTParser took 0.51ms. Allocated memory is still 159.4MB. Free memory is still 109.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-17 14:48:13,598 INFO L158 Benchmark]: CACSL2BoogieTranslator took 629.49ms. Allocated memory was 159.4MB in the beginning and 203.4MB in the end (delta: 44.0MB). Free memory was 83.7MB in the beginning and 155.5MB in the end (delta: -71.8MB). Peak memory consumption was 40.4MB. Max. memory is 16.1GB. [2024-10-17 14:48:13,598 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.22ms. Allocated memory is still 203.4MB. Free memory was 155.5MB in the beginning and 152.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-17 14:48:13,598 INFO L158 Benchmark]: Boogie Preprocessor took 35.89ms. Allocated memory is still 203.4MB. Free memory was 152.4MB in the beginning and 151.3MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-17 14:48:13,598 INFO L158 Benchmark]: RCFGBuilder took 434.73ms. Allocated memory is still 203.4MB. Free memory was 151.3MB in the beginning and 128.2MB in the end (delta: 23.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-17 14:48:13,599 INFO L158 Benchmark]: TraceAbstraction took 23740.35ms. Allocated memory was 203.4MB in the beginning and 559.9MB in the end (delta: 356.5MB). Free memory was 126.1MB in the beginning and 385.7MB in the end (delta: -259.6MB). Peak memory consumption was 98.0MB. Max. memory is 16.1GB. [2024-10-17 14:48:13,599 INFO L158 Benchmark]: Witness Printer took 91.40ms. Allocated memory is still 559.9MB. Free memory was 385.7MB in the beginning and 381.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-17 14:48:13,601 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51ms. Allocated memory is still 159.4MB. Free memory is still 109.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 629.49ms. Allocated memory was 159.4MB in the beginning and 203.4MB in the end (delta: 44.0MB). Free memory was 83.7MB in the beginning and 155.5MB in the end (delta: -71.8MB). Peak memory consumption was 40.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.22ms. Allocated memory is still 203.4MB. Free memory was 155.5MB in the beginning and 152.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.89ms. Allocated memory is still 203.4MB. Free memory was 152.4MB in the beginning and 151.3MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 434.73ms. Allocated memory is still 203.4MB. Free memory was 151.3MB in the beginning and 128.2MB in the end (delta: 23.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 23740.35ms. Allocated memory was 203.4MB in the beginning and 559.9MB in the end (delta: 356.5MB). Free memory was 126.1MB in the beginning and 385.7MB in the end (delta: -259.6MB). Peak memory consumption was 98.0MB. Max. memory is 16.1GB. * Witness Printer took 91.40ms. Allocated memory is still 559.9MB. Free memory was 385.7MB in the beginning and 381.5MB 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: 28639, independent: 25571, independent conditional: 25443, independent unconditional: 128, dependent: 3068, dependent conditional: 3062, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 27832, independent: 25571, independent conditional: 25443, independent unconditional: 128, dependent: 2261, dependent conditional: 2255, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ ConditionTransformingIndependenceRelation.Independence Queries: [ total: 27832, independent: 25571, independent conditional: 25443, independent unconditional: 128, dependent: 2261, dependent conditional: 2255, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 27832, independent: 25571, independent conditional: 25443, independent unconditional: 128, dependent: 2261, dependent conditional: 2255, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 45887, independent: 25571, independent conditional: 25443, independent unconditional: 128, dependent: 20316, dependent conditional: 20304, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 45887, independent: 25571, independent conditional: 0, independent unconditional: 25571, dependent: 20316, dependent conditional: 761, dependent unconditional: 19555, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 45887, independent: 25571, independent conditional: 0, independent unconditional: 25571, dependent: 20316, dependent conditional: 761, dependent unconditional: 19555, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 183, independent: 100, independent conditional: 0, independent unconditional: 100, dependent: 83, dependent conditional: 77, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 183, independent: 96, independent conditional: 0, independent unconditional: 96, dependent: 87, dependent conditional: 0, dependent unconditional: 87, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 87, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 83, dependent conditional: 77, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 87, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 83, dependent conditional: 77, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 719, independent: 64, independent conditional: 0, independent unconditional: 64, dependent: 655, dependent conditional: 529, dependent unconditional: 126, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 45887, independent: 25471, independent conditional: 0, independent unconditional: 25471, dependent: 20233, dependent conditional: 684, dependent unconditional: 19549, unknown: 183, unknown conditional: 77, unknown unconditional: 106] , Statistics on independence cache: Total cache size (in pairs): 183, Positive cache size: 100, Positive conditional cache size: 0, Positive unconditional cache size: 100, Negative cache size: 83, Negative conditional cache size: 77, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 44986, Maximal queried relation: 8, ConditionTransformingIndependenceRelation.Independence Queries: [ total: 45887, independent: 25571, independent conditional: 25443, independent unconditional: 128, dependent: 20316, dependent conditional: 20304, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 45887, independent: 25571, independent conditional: 0, independent unconditional: 25571, dependent: 20316, dependent conditional: 761, dependent unconditional: 19555, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 45887, independent: 25571, independent conditional: 0, independent unconditional: 25571, dependent: 20316, dependent conditional: 761, dependent unconditional: 19555, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 183, independent: 100, independent conditional: 0, independent unconditional: 100, dependent: 83, dependent conditional: 77, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 183, independent: 96, independent conditional: 0, independent unconditional: 96, dependent: 87, dependent conditional: 0, dependent unconditional: 87, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 87, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 83, dependent conditional: 77, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 87, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 83, dependent conditional: 77, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 719, independent: 64, independent conditional: 0, independent unconditional: 64, dependent: 655, dependent conditional: 529, dependent unconditional: 126, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 45887, independent: 25471, independent conditional: 0, independent unconditional: 25471, dependent: 20233, dependent conditional: 684, dependent unconditional: 19549, unknown: 183, unknown conditional: 77, unknown unconditional: 106] , Statistics on independence cache: Total cache size (in pairs): 183, Positive cache size: 100, Positive conditional cache size: 0, Positive unconditional cache size: 100, Negative cache size: 83, Negative conditional cache size: 77, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 44986 ], Independence queries for same thread: 807, Persistent sets #1 benchmarks: Persistent set computation time: 0.2s, Number of persistent set computation: 80, Number of trivial persistent sets: 74, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 134, independent: 128, independent conditional: 0, independent unconditional: 128, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 28639, independent: 25571, independent conditional: 25443, independent unconditional: 128, dependent: 3068, dependent conditional: 3062, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 27832, independent: 25571, independent conditional: 25443, independent unconditional: 128, dependent: 2261, dependent conditional: 2255, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ ConditionTransformingIndependenceRelation.Independence Queries: [ total: 27832, independent: 25571, independent conditional: 25443, independent unconditional: 128, dependent: 2261, dependent conditional: 2255, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 27832, independent: 25571, independent conditional: 25443, independent unconditional: 128, dependent: 2261, dependent conditional: 2255, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 45887, independent: 25571, independent conditional: 25443, independent unconditional: 128, dependent: 20316, dependent conditional: 20304, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 45887, independent: 25571, independent conditional: 0, independent unconditional: 25571, dependent: 20316, dependent conditional: 761, dependent unconditional: 19555, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 45887, independent: 25571, independent conditional: 0, independent unconditional: 25571, dependent: 20316, dependent conditional: 761, dependent unconditional: 19555, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 183, independent: 100, independent conditional: 0, independent unconditional: 100, dependent: 83, dependent conditional: 77, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 183, independent: 96, independent conditional: 0, independent unconditional: 96, dependent: 87, dependent conditional: 0, dependent unconditional: 87, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 87, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 83, dependent conditional: 77, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 87, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 83, dependent conditional: 77, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 719, independent: 64, independent conditional: 0, independent unconditional: 64, dependent: 655, dependent conditional: 529, dependent unconditional: 126, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 45887, independent: 25471, independent conditional: 0, independent unconditional: 25471, dependent: 20233, dependent conditional: 684, dependent unconditional: 19549, unknown: 183, unknown conditional: 77, unknown unconditional: 106] , Statistics on independence cache: Total cache size (in pairs): 183, Positive cache size: 100, Positive conditional cache size: 0, Positive unconditional cache size: 100, Negative cache size: 83, Negative conditional cache size: 77, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 44986, Maximal queried relation: 8, ConditionTransformingIndependenceRelation.Independence Queries: [ total: 45887, independent: 25571, independent conditional: 25443, independent unconditional: 128, dependent: 20316, dependent conditional: 20304, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 45887, independent: 25571, independent conditional: 0, independent unconditional: 25571, dependent: 20316, dependent conditional: 761, dependent unconditional: 19555, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 45887, independent: 25571, independent conditional: 0, independent unconditional: 25571, dependent: 20316, dependent conditional: 761, dependent unconditional: 19555, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 183, independent: 100, independent conditional: 0, independent unconditional: 100, dependent: 83, dependent conditional: 77, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 183, independent: 96, independent conditional: 0, independent unconditional: 96, dependent: 87, dependent conditional: 0, dependent unconditional: 87, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 87, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 83, dependent conditional: 77, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 87, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 83, dependent conditional: 77, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 719, independent: 64, independent conditional: 0, independent unconditional: 64, dependent: 655, dependent conditional: 529, dependent unconditional: 126, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 45887, independent: 25471, independent conditional: 0, independent unconditional: 25471, dependent: 20233, dependent conditional: 684, dependent unconditional: 19549, unknown: 183, unknown conditional: 77, unknown unconditional: 106] , Statistics on independence cache: Total cache size (in pairs): 183, Positive cache size: 100, Positive conditional cache size: 0, Positive unconditional cache size: 100, Negative cache size: 83, Negative conditional cache size: 77, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 44986 ], Independence queries for same thread: 807 - PositiveResult [Line: 13]: 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 3 procedures, 30 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 23.6s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 7, EmptinessCheckTime: 13.0s, 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: 386, 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: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 7.1s InterpolantComputationTime, 2105 NumberOfCodeBlocks, 2105 NumberOfCodeBlocksAsserted, 69 NumberOfCheckSat, 2695 ConstructedInterpolants, 0 QuantifiedInterpolants, 7765 SizeOfPredicates, 22 NumberOfNonLiveVariables, 4449 ConjunctsInSsa, 215 ConjunctsInUnsatCore, 20 InterpolantComputations, 3 PerfectInterpolantSequences, 8171/21573 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: 0.0s, ConditionalCommutativityCheckTime: 0.0s, ConditionalCommutativityIAIntegrations: 0, ConditionalCommutativityDFSRestarts: 0, ConditionalCommutativityCommutingCounterexamples: 0, ConditionalCommutativityConditionCalculations: 0, ConditionalCommutativityTraceChecks: 0, ConditionalCommutativityImperfectProofs: 0 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-17 14:48:13,627 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 [2024-10-17 14:48:13,840 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE