./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-min-max-inc.wvr.c --full-output --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking IA --traceabstraction.criterion.for.conditional.commutativity.checking LOOP -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b86fb0b7 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/weaver/popl20-min-max-inc.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 55079ed406966de8cb8f01bd4828043af39842b101d9722a0d33cee3b1fc3a52 --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking IA --traceabstraction.criterion.for.conditional.commutativity.checking LOOP -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.conditional-comm-b86fb0b-m [2024-10-18 17:12:45,783 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-18 17:12:45,842 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-10-18 17:12:45,848 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-18 17:12:45,850 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-18 17:12:45,877 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-18 17:12:45,877 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-18 17:12:45,878 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-18 17:12:45,878 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-18 17:12:45,879 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-18 17:12:45,880 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-18 17:12:45,880 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-18 17:12:45,880 INFO L153 SettingsManager]: * Use SBE=true [2024-10-18 17:12:45,881 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-18 17:12:45,882 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-18 17:12:45,882 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-18 17:12:45,883 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-18 17:12:45,883 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-18 17:12:45,883 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-18 17:12:45,883 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-18 17:12:45,883 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-18 17:12:45,886 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-18 17:12:45,887 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-18 17:12:45,887 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-18 17:12:45,887 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-18 17:12:45,887 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-18 17:12:45,887 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-18 17:12:45,888 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-18 17:12:45,888 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-18 17:12:45,888 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-18 17:12:45,888 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-18 17:12:45,888 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-18 17:12:45,888 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-18 17:12:45,889 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-10-18 17:12:45,889 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-18 17:12:45,889 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-18 17:12:45,889 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-18 17:12:45,889 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-18 17:12:45,889 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-18 17:12:45,889 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-18 17:12:45,890 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-18 17:12:45,892 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 55079ed406966de8cb8f01bd4828043af39842b101d9722a0d33cee3b1fc3a52 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional conditional commutativity checking -> IA Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Criterion for conditional commutativity checking -> LOOP [2024-10-18 17:12:46,085 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-18 17:12:46,100 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-18 17:12:46,105 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-18 17:12:46,106 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-18 17:12:46,106 INFO L274 PluginConnector]: CDTParser initialized [2024-10-18 17:12:46,107 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-min-max-inc.wvr.c [2024-10-18 17:12:47,396 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-18 17:12:47,559 INFO L384 CDTParser]: Found 1 translation units. [2024-10-18 17:12:47,559 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-min-max-inc.wvr.c [2024-10-18 17:12:47,566 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/53a847128/f429ef2d130047b190fe0dd5f6887fd0/FLAGd872e55eb [2024-10-18 17:12:47,577 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/53a847128/f429ef2d130047b190fe0dd5f6887fd0 [2024-10-18 17:12:47,579 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-18 17:12:47,580 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-18 17:12:47,582 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-18 17:12:47,582 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-18 17:12:47,586 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-18 17:12:47,587 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.10 05:12:47" (1/1) ... [2024-10-18 17:12:47,588 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7723b7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 05:12:47, skipping insertion in model container [2024-10-18 17:12:47,588 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.10 05:12:47" (1/1) ... [2024-10-18 17:12:47,605 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-18 17:12:47,781 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-min-max-inc.wvr.c[3070,3083] [2024-10-18 17:12:47,792 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-18 17:12:47,800 INFO L200 MainTranslator]: Completed pre-run [2024-10-18 17:12:47,824 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-min-max-inc.wvr.c[3070,3083] [2024-10-18 17:12:47,829 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-18 17:12:47,846 INFO L204 MainTranslator]: Completed translation [2024-10-18 17:12:47,846 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 05:12:47 WrapperNode [2024-10-18 17:12:47,847 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-18 17:12:47,848 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-18 17:12:47,848 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-18 17:12:47,848 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-18 17:12:47,854 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 05:12:47" (1/1) ... [2024-10-18 17:12:47,866 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 05:12:47" (1/1) ... [2024-10-18 17:12:47,889 INFO L138 Inliner]: procedures = 25, calls = 43, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 117 [2024-10-18 17:12:47,891 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-18 17:12:47,891 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-18 17:12:47,892 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-18 17:12:47,892 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-18 17:12:47,898 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 05:12:47" (1/1) ... [2024-10-18 17:12:47,898 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 05:12:47" (1/1) ... [2024-10-18 17:12:47,906 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 05:12:47" (1/1) ... [2024-10-18 17:12:47,906 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 05:12:47" (1/1) ... [2024-10-18 17:12:47,916 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 05:12:47" (1/1) ... [2024-10-18 17:12:47,919 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 05:12:47" (1/1) ... [2024-10-18 17:12:47,920 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 05:12:47" (1/1) ... [2024-10-18 17:12:47,921 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 05:12:47" (1/1) ... [2024-10-18 17:12:47,922 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-18 17:12:47,923 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-18 17:12:47,923 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-18 17:12:47,923 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-18 17:12:47,924 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 05:12:47" (1/1) ... [2024-10-18 17:12:47,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-18 17:12:47,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 17:12:47,961 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-10-18 17:12:47,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-10-18 17:12:48,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-18 17:12:48,021 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-18 17:12:48,021 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-18 17:12:48,022 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-18 17:12:48,022 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-18 17:12:48,022 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-18 17:12:48,023 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-18 17:12:48,023 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-10-18 17:12:48,023 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-10-18 17:12:48,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-18 17:12:48,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-18 17:12:48,024 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-18 17:12:48,025 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-18 17:12:48,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-18 17:12:48,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-18 17:12:48,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-18 17:12:48,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-18 17:12:48,027 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-18 17:12:48,133 INFO L238 CfgBuilder]: Building ICFG [2024-10-18 17:12:48,135 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-18 17:12:48,427 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-18 17:12:48,427 INFO L287 CfgBuilder]: Performing block encoding [2024-10-18 17:12:48,580 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-18 17:12:48,580 INFO L314 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-18 17:12:48,581 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.10 05:12:48 BoogieIcfgContainer [2024-10-18 17:12:48,581 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-18 17:12:48,584 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-18 17:12:48,584 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-18 17:12:48,587 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-18 17:12:48,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.10 05:12:47" (1/3) ... [2024-10-18 17:12:48,588 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49d2836d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.10 05:12:48, skipping insertion in model container [2024-10-18 17:12:48,588 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 05:12:47" (2/3) ... [2024-10-18 17:12:48,588 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49d2836d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.10 05:12:48, skipping insertion in model container [2024-10-18 17:12:48,588 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.10 05:12:48" (3/3) ... [2024-10-18 17:12:48,589 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-min-max-inc.wvr.c [2024-10-18 17:12:48,605 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-18 17:12:48,605 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-18 17:12:48,605 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-18 17:12:48,653 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-18 17:12:48,694 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-18 17:12:48,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-18 17:12:48,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 17:12:48,699 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-18 17:12:48,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-10-18 17:12:48,802 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-18 17:12:48,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 17:12:48,821 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-18 17:12:48,827 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;@6b147132, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=LOOP, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-10-18 17:12:48,827 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-10-18 17:12:50,093 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-18 17:12:50,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 17:12:50,095 INFO L85 PathProgramCache]: Analyzing trace with hash -1653604356, now seen corresponding path program 1 times [2024-10-18 17:12:50,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 17:12:50,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674889124] [2024-10-18 17:12:50,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:12:50,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:12:50,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:12:50,490 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-10-18 17:12:50,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 17:12:50,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674889124] [2024-10-18 17:12:50,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674889124] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 17:12:50,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 17:12:50,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-18 17:12:50,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095380186] [2024-10-18 17:12:50,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 17:12:50,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-18 17:12:50,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 17:12:50,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-18 17:12:50,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-18 17:12:50,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 17:12:50,849 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 17:12:50,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 17:12:50,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 17:12:50,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 17:12:50,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-18 17:12:50,920 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-18 17:12:50,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 17:12:50,921 INFO L85 PathProgramCache]: Analyzing trace with hash -656874439, now seen corresponding path program 1 times [2024-10-18 17:12:50,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 17:12:50,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373400576] [2024-10-18 17:12:50,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:12:50,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:12:50,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:12:51,118 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 28 proven. 5 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-18 17:12:51,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 17:12:51,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373400576] [2024-10-18 17:12:51,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373400576] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-18 17:12:51,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1935605021] [2024-10-18 17:12:51,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:12:51,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 17:12:51,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 17:12:51,121 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-18 17:12:51,130 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-18 17:12:51,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:12:51,225 INFO L255 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-18 17:12:51,229 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 17:12:51,371 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 25 proven. 1 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-10-18 17:12:51,372 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-18 17:12:51,447 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 25 proven. 1 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-10-18 17:12:51,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1935605021] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-18 17:12:51,448 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-18 17:12:51,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2024-10-18 17:12:51,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784462562] [2024-10-18 17:12:51,449 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-18 17:12:51,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-18 17:12:51,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 17:12:51,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-18 17:12:51,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-10-18 17:12:51,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 17:12:51,728 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 17:12:51,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.066666666666666) internal successors, (106), 14 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 17:12:51,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 17:12:51,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 17:12:51,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 17:12:51,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 17:12:51,905 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-18 17:12:52,088 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 [2024-10-18 17:12:52,088 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-18 17:12:52,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 17:12:52,089 INFO L85 PathProgramCache]: Analyzing trace with hash 176981916, now seen corresponding path program 2 times [2024-10-18 17:12:52,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 17:12:52,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213839323] [2024-10-18 17:12:52,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:12:52,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:12:52,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:12:52,466 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 25 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 17:12:52,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 17:12:52,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213839323] [2024-10-18 17:12:52,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213839323] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-18 17:12:52,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1873173032] [2024-10-18 17:12:52,467 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-18 17:12:52,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 17:12:52,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 17:12:52,470 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-18 17:12:52,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-18 17:12:52,561 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-18 17:12:52,562 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-18 17:12:52,565 INFO L255 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-18 17:12:52,567 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 17:12:52,620 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-10-18 17:12:52,695 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-10-18 17:12:52,696 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-18 17:12:52,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1873173032] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 17:12:52,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-18 17:12:52,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [15] total 19 [2024-10-18 17:12:52,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138212577] [2024-10-18 17:12:52,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 17:12:52,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-18 17:12:52,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 17:12:52,828 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 64 [2024-10-18 17:12:52,837 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-18 17:12:52,837 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 38 [2024-10-18 17:12:54,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1370706532, now seen corresponding path program 1 times [2024-10-18 17:12:54,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:12:54,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:12:54,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:12:55,030 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-18 17:12:55,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:12:55,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:12:55,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:12:55,087 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-18 17:12:55,165 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 88 [2024-10-18 17:12:55,173 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-18 17:12:55,173 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 93 treesize of output 55 [2024-10-18 17:12:55,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1828126247, now seen corresponding path program 1 times [2024-10-18 17:12:55,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:12:55,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:12:55,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 17:12:55,236 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 17:12:55,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 17:12:55,347 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 64 [2024-10-18 17:12:55,358 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-18 17:12:55,359 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 38 [2024-10-18 17:12:57,466 INFO L85 PathProgramCache]: Analyzing trace with hash 837336069, now seen corresponding path program 1 times [2024-10-18 17:12:57,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:12:57,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:12:57,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:12:57,531 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-18 17:12:57,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:12:57,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:12:57,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:12:57,576 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-18 17:12:57,654 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 88 [2024-10-18 17:12:57,659 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-18 17:12:57,660 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 93 treesize of output 55 [2024-10-18 17:12:57,676 INFO L85 PathProgramCache]: Analyzing trace with hash 187611655, now seen corresponding path program 1 times [2024-10-18 17:12:57,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:12:57,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:12:57,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:12:57,800 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-18 17:12:57,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:12:57,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:12:57,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:12:57,917 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-18 17:12:57,988 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 73 [2024-10-18 17:12:57,994 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-18 17:12:57,994 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 41 [2024-10-18 17:12:58,012 INFO L85 PathProgramCache]: Analyzing trace with hash -44343907, now seen corresponding path program 1 times [2024-10-18 17:12:58,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:12:58,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:12:58,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:12:58,089 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-18 17:12:58,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:12:58,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:12:58,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:12:58,173 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-18 17:12:58,244 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 64 [2024-10-18 17:12:58,249 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-18 17:12:58,250 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 38 [2024-10-18 17:13:00,318 INFO L85 PathProgramCache]: Analyzing trace with hash -88988816, now seen corresponding path program 1 times [2024-10-18 17:13:00,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:13:00,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:13:00,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:13:00,410 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-18 17:13:00,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:13:00,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:13:00,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:13:00,508 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-18 17:13:00,576 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 73 [2024-10-18 17:13:00,581 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-18 17:13:00,581 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 41 [2024-10-18 17:13:00,598 INFO L85 PathProgramCache]: Analyzing trace with hash -88988815, now seen corresponding path program 1 times [2024-10-18 17:13:00,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:13:00,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:13:00,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:13:00,711 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-18 17:13:00,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:13:00,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:13:00,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:13:00,772 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-18 17:13:00,840 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 64 [2024-10-18 17:13:00,845 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-18 17:13:00,845 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 38 [2024-10-18 17:13:02,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1033850514, now seen corresponding path program 1 times [2024-10-18 17:13:02,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:13:02,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:13:02,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:13:03,174 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-18 17:13:03,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:13:03,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:13:03,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:13:03,291 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-18 17:13:03,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-18 17:13:03,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=839, Unknown=0, NotChecked=0, Total=930 [2024-10-18 17:13:03,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 17:13:03,293 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 17:13:03,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 17:13:03,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 17:13:03,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 17:13:03,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 17:13:04,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 17:13:04,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 17:13:04,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 17:13:04,540 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-18 17:13:04,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,SelfDestructingSolverStorable3,SelfDestructingSolverStorable2,SelfDestructingSolverStorable8,SelfDestructingSolverStorable7,SelfDestructingSolverStorable6,SelfDestructingSolverStorable5,SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11,SelfDestructingSolverStorable12,SelfDestructingSolverStorable9,SelfDestructingSolverStorable13,SelfDestructingSolverStorable14,SelfDestructingSolverStorable15,SelfDestructingSolverStorable16,SelfDestructingSolverStorable17 [2024-10-18 17:13:04,728 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-18 17:13:04,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 17:13:04,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1268425228, now seen corresponding path program 3 times [2024-10-18 17:13:04,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 17:13:04,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163503682] [2024-10-18 17:13:04,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:13:04,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:13:04,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:13:04,909 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 31 proven. 5 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-18 17:13:04,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 17:13:04,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163503682] [2024-10-18 17:13:04,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163503682] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-18 17:13:04,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1498325334] [2024-10-18 17:13:04,910 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-18 17:13:04,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 17:13:04,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 17:13:04,912 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-18 17:13:04,913 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-18 17:13:05,000 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-10-18 17:13:05,000 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-18 17:13:05,003 INFO L255 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-18 17:13:05,005 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 17:13:05,093 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-10-18 17:13:05,093 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-18 17:13:05,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1498325334] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 17:13:05,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-18 17:13:05,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-10-18 17:13:05,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70554777] [2024-10-18 17:13:05,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 17:13:05,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-18 17:13:05,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 17:13:05,257 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 73 [2024-10-18 17:13:05,265 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-18 17:13:05,266 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 41 [2024-10-18 17:13:05,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1734723641, now seen corresponding path program 1 times [2024-10-18 17:13:05,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:13:05,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:13:05,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 17:13:05,310 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 17:13:05,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 17:13:05,448 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 64 [2024-10-18 17:13:05,454 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-18 17:13:05,455 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 38 [2024-10-18 17:13:07,492 INFO L85 PathProgramCache]: Analyzing trace with hash 732026382, now seen corresponding path program 1 times [2024-10-18 17:13:07,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:13:07,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:13:07,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:13:07,626 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-18 17:13:07,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:13:07,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:13:07,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:13:07,705 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-18 17:13:07,803 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 88 [2024-10-18 17:13:07,809 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-18 17:13:07,809 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 93 treesize of output 55 [2024-10-18 17:13:07,826 INFO L85 PathProgramCache]: Analyzing trace with hash 732026385, now seen corresponding path program 1 times [2024-10-18 17:13:07,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:13:07,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:13:07,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:13:07,886 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-18 17:13:07,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:13:07,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:13:07,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:13:07,943 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-18 17:13:08,040 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 64 [2024-10-18 17:13:08,046 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-18 17:13:08,047 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 38 [2024-10-18 17:13:10,100 INFO L85 PathProgramCache]: Analyzing trace with hash 2113720336, now seen corresponding path program 1 times [2024-10-18 17:13:10,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:13:10,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:13:10,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:13:10,153 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-18 17:13:10,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:13:10,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:13:10,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:13:10,203 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-18 17:13:10,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-18 17:13:10,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2024-10-18 17:13:10,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 17:13:10,205 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 17:13:10,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 17:13:10,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 17:13:10,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 17:13:10,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-18 17:13:10,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 17:13:11,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 17:13:11,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 17:13:11,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 17:13:11,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 17:13:11,059 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-18 17:13:11,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,SelfDestructingSolverStorable19,SelfDestructingSolverStorable20,SelfDestructingSolverStorable21,SelfDestructingSolverStorable22,SelfDestructingSolverStorable23,SelfDestructingSolverStorable24,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-10-18 17:13:11,246 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-18 17:13:11,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 17:13:11,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1700161619, now seen corresponding path program 4 times [2024-10-18 17:13:11,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 17:13:11,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774198119] [2024-10-18 17:13:11,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:13:11,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:13:11,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:13:11,322 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-18 17:13:11,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 17:13:11,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774198119] [2024-10-18 17:13:11,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774198119] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-18 17:13:11,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [797284758] [2024-10-18 17:13:11,323 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-18 17:13:11,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 17:13:11,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 17:13:11,328 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-18 17:13:11,330 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-18 17:13:11,412 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-18 17:13:11,412 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-18 17:13:11,413 INFO L255 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-18 17:13:11,415 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 17:13:11,513 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-18 17:13:11,513 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-18 17:13:11,582 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-18 17:13:11,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [797284758] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-18 17:13:11,582 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-18 17:13:11,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 15 [2024-10-18 17:13:11,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404404125] [2024-10-18 17:13:11,583 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-18 17:13:11,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-18 17:13:11,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 17:13:11,740 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 73 [2024-10-18 17:13:11,747 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-18 17:13:11,747 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 41 [2024-10-18 17:13:11,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1619519740, now seen corresponding path program 1 times [2024-10-18 17:13:11,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:13:11,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:13:11,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 17:13:11,780 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 17:13:11,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 17:13:11,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-18 17:13:11,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2024-10-18 17:13:11,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 17:13:11,841 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 17:13:11,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 17:13:11,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 17:13:11,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 17:13:11,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-18 17:13:11,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 17:13:11,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 17:13:15,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 17:13:15,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 17:13:15,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 17:13:15,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 17:13:15,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-18 17:13:15,293 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-18 17:13:15,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26,SelfDestructingSolverStorable27 [2024-10-18 17:13:15,484 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-18 17:13:15,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 17:13:15,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1787760768, now seen corresponding path program 5 times [2024-10-18 17:13:15,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 17:13:15,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464880198] [2024-10-18 17:13:15,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:13:15,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:13:15,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:13:15,861 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 32 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 17:13:15,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 17:13:15,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464880198] [2024-10-18 17:13:15,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464880198] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-18 17:13:15,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1151941178] [2024-10-18 17:13:15,862 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-18 17:13:15,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 17:13:15,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 17:13:15,863 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-18 17:13:15,864 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-18 17:13:16,035 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2024-10-18 17:13:16,036 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-18 17:13:16,037 INFO L255 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-18 17:13:16,042 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 17:13:16,361 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 12 proven. 83 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-18 17:13:16,361 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-18 17:13:16,491 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 50 proven. 14 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-18 17:13:16,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1151941178] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-18 17:13:16,492 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-18 17:13:16,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 14, 7] total 39 [2024-10-18 17:13:16,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360117344] [2024-10-18 17:13:16,492 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-18 17:13:16,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-10-18 17:13:16,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 17:13:16,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-10-18 17:13:16,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=1303, Unknown=0, NotChecked=0, Total=1482 [2024-10-18 17:13:16,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 17:13:16,547 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 17:13:16,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 4.487179487179487) internal successors, (175), 39 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 17:13:16,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 17:13:16,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 17:13:16,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-18 17:13:16,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 17:13:16,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-10-18 17:13:16,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 17:13:18,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 17:13:18,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 17:13:18,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 17:13:18,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 17:13:18,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-18 17:13:18,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-18 17:13:18,279 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-18 17:13:18,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-10-18 17:13:18,467 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-18 17:13:18,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 17:13:18,468 INFO L85 PathProgramCache]: Analyzing trace with hash 473365057, now seen corresponding path program 6 times [2024-10-18 17:13:18,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 17:13:18,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744652247] [2024-10-18 17:13:18,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:13:18,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:13:18,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:13:18,620 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 91 proven. 22 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-18 17:13:18,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 17:13:18,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744652247] [2024-10-18 17:13:18,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744652247] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-18 17:13:18,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [552783462] [2024-10-18 17:13:18,621 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-18 17:13:18,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 17:13:18,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 17:13:18,622 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-18 17:13:18,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-18 17:13:18,712 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-10-18 17:13:18,712 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-18 17:13:18,713 INFO L255 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-18 17:13:18,714 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 17:13:18,813 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-10-18 17:13:18,813 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-18 17:13:18,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [552783462] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 17:13:18,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-18 17:13:18,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 12 [2024-10-18 17:13:18,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242599182] [2024-10-18 17:13:18,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 17:13:18,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-18 17:13:18,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 17:13:18,956 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 64 [2024-10-18 17:13:18,962 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-18 17:13:18,962 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 38 [2024-10-18 17:13:21,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1501003877, now seen corresponding path program 1 times [2024-10-18 17:13:21,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:13:21,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:13:21,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:13:21,164 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 60 proven. 19 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-18 17:13:21,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:13:21,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:13:21,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:13:21,244 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 60 proven. 19 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-18 17:13:21,333 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 88 [2024-10-18 17:13:21,337 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-18 17:13:21,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 93 treesize of output 55 [2024-10-18 17:13:21,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1491695714, now seen corresponding path program 1 times [2024-10-18 17:13:21,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:13:21,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:13:21,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:13:21,459 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 44 proven. 34 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-18 17:13:21,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:13:21,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:13:21,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:13:21,529 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 44 proven. 34 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-18 17:13:21,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-18 17:13:21,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2024-10-18 17:13:21,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 17:13:21,531 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 17:13:21,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 17:13:21,531 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 17:13:21,531 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 17:13:21,531 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-18 17:13:21,531 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 17:13:21,531 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-10-18 17:13:21,531 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-10-18 17:13:21,531 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 17:13:24,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 17:13:24,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 17:13:24,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 17:13:24,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 17:13:24,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-18 17:13:24,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-10-18 17:13:24,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 17:13:24,885 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-18 17:13:25,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30,SelfDestructingSolverStorable31,SelfDestructingSolverStorable32,SelfDestructingSolverStorable33 [2024-10-18 17:13:25,074 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-18 17:13:25,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 17:13:25,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1875138488, now seen corresponding path program 7 times [2024-10-18 17:13:25,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 17:13:25,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901705281] [2024-10-18 17:13:25,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:13:25,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:13:25,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:13:25,566 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 44 proven. 118 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 17:13:25,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 17:13:25,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901705281] [2024-10-18 17:13:25,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901705281] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-18 17:13:25,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1094174108] [2024-10-18 17:13:25,567 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-18 17:13:25,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 17:13:25,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 17:13:25,568 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) [2024-10-18 17:13:25,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-18 17:13:25,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:13:25,676 INFO L255 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-18 17:13:25,677 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 17:13:25,922 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 111 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-10-18 17:13:25,922 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-18 17:13:26,184 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 111 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-10-18 17:13:26,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1094174108] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-18 17:13:26,184 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-18 17:13:26,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 10, 10] total 42 [2024-10-18 17:13:26,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785551713] [2024-10-18 17:13:26,185 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-18 17:13:26,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2024-10-18 17:13:26,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 17:13:26,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2024-10-18 17:13:26,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=232, Invalid=1574, Unknown=0, NotChecked=0, Total=1806 [2024-10-18 17:13:26,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 17:13:26,506 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 17:13:26,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 4.232558139534884) internal successors, (182), 42 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 17:13:26,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 17:13:26,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 17:13:26,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-18 17:13:26,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 17:13:26,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-10-18 17:13:26,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2024-10-18 17:13:26,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 17:13:26,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 17:13:27,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 17:13:27,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 17:13:27,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 17:13:27,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 17:13:27,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-18 17:13:27,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-10-18 17:13:27,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 17:13:27,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-18 17:13:27,162 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-10-18 17:13:27,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 17:13:27,351 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-18 17:13:27,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 17:13:27,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1749359227, now seen corresponding path program 8 times [2024-10-18 17:13:27,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 17:13:27,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475052346] [2024-10-18 17:13:27,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:13:27,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:13:27,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:13:27,586 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 117 proven. 32 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-18 17:13:27,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 17:13:27,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475052346] [2024-10-18 17:13:27,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475052346] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-18 17:13:27,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1993895703] [2024-10-18 17:13:27,587 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-18 17:13:27,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 17:13:27,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 17:13:27,592 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-18 17:13:27,593 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-18 17:13:27,707 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-18 17:13:27,708 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-18 17:13:27,710 INFO L255 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-18 17:13:27,711 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 17:13:27,962 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 134 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-18 17:13:27,962 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-18 17:13:28,178 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 134 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-18 17:13:28,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1993895703] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-18 17:13:28,179 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-18 17:13:28,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 32 [2024-10-18 17:13:28,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790129899] [2024-10-18 17:13:28,180 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-18 17:13:28,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-10-18 17:13:28,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 17:13:28,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-10-18 17:13:28,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=220, Invalid=836, Unknown=0, NotChecked=0, Total=1056 [2024-10-18 17:13:28,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 17:13:28,554 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 17:13:28,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 5.666666666666667) internal successors, (187), 32 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 17:13:28,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 17:13:28,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 17:13:28,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-18 17:13:28,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 17:13:28,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-10-18 17:13:28,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2024-10-18 17:13:28,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 17:13:28,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-18 17:13:28,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 17:13:29,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 17:13:29,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 17:13:29,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 17:13:29,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 17:13:29,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-18 17:13:29,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-10-18 17:13:29,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 17:13:29,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-18 17:13:29,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-18 17:13:29,239 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-18 17:13:29,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-10-18 17:13:29,427 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-18 17:13:29,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 17:13:29,427 INFO L85 PathProgramCache]: Analyzing trace with hash -2145169432, now seen corresponding path program 9 times [2024-10-18 17:13:29,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 17:13:29,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66919359] [2024-10-18 17:13:29,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:13:29,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:13:29,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:13:29,637 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 93 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 17:13:29,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 17:13:29,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66919359] [2024-10-18 17:13:29,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66919359] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-18 17:13:29,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [696486858] [2024-10-18 17:13:29,638 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-18 17:13:29,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 17:13:29,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 17:13:29,643 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-18 17:13:29,644 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-18 17:13:29,782 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-10-18 17:13:29,782 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-18 17:13:29,784 INFO L255 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-18 17:13:29,786 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 17:13:29,957 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-10-18 17:13:29,984 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-10-18 17:13:30,077 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2024-10-18 17:13:30,077 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-18 17:13:30,658 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2024-10-18 17:13:30,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [696486858] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-18 17:13:30,659 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-18 17:13:30,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10, 8] total 30 [2024-10-18 17:13:30,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843801899] [2024-10-18 17:13:30,659 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-18 17:13:30,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-10-18 17:13:30,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 17:13:31,003 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 64 [2024-10-18 17:13:31,008 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-18 17:13:31,008 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 38 [2024-10-18 17:13:33,096 INFO L85 PathProgramCache]: Analyzing trace with hash -502293558, now seen corresponding path program 1 times [2024-10-18 17:13:33,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:13:33,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:13:33,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:13:33,284 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 8 proven. 45 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-10-18 17:13:33,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:13:33,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:13:33,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:13:33,373 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 8 proven. 45 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-10-18 17:13:33,471 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 88 [2024-10-18 17:13:33,479 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-18 17:13:33,479 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 93 treesize of output 55 [2024-10-18 17:13:33,503 INFO L85 PathProgramCache]: Analyzing trace with hash -177272551, now seen corresponding path program 1 times [2024-10-18 17:13:33,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:13:33,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:13:33,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:13:33,737 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 73 proven. 16 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-18 17:13:33,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:13:33,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:13:33,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:13:33,836 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 73 proven. 16 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-18 17:13:33,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-10-18 17:13:33,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=1569, Unknown=0, NotChecked=0, Total=1722 [2024-10-18 17:13:33,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 17:13:33,841 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 17:13:33,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 6.066666666666666) internal successors, (182), 30 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 17:13:33,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 17:13:33,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 17:13:33,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-18 17:13:33,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 17:13:33,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-10-18 17:13:33,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2024-10-18 17:13:33,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 17:13:33,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-18 17:13:33,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-10-18 17:13:33,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 17:13:42,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 17:13:42,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 17:13:42,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 17:13:42,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 17:13:42,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-18 17:13:42,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-10-18 17:13:42,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 17:13:42,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-18 17:13:42,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-18 17:13:42,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-10-18 17:13:42,318 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-10-18 17:13:42,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40,SelfDestructingSolverStorable36,SelfDestructingSolverStorable37,SelfDestructingSolverStorable38,SelfDestructingSolverStorable39 [2024-10-18 17:13:42,509 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-18 17:13:42,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 17:13:42,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1824546422, now seen corresponding path program 10 times [2024-10-18 17:13:42,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 17:13:42,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590223975] [2024-10-18 17:13:42,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:13:42,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:13:42,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:13:42,856 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 174 proven. 40 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-18 17:13:42,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 17:13:42,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590223975] [2024-10-18 17:13:42,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590223975] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-18 17:13:42,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [951634983] [2024-10-18 17:13:42,857 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-18 17:13:42,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 17:13:42,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 17:13:42,859 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-18 17:13:42,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-18 17:13:42,978 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-18 17:13:42,978 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-18 17:13:42,979 INFO L255 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-18 17:13:42,980 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 17:13:43,333 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 34 proven. 159 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-18 17:13:43,334 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-18 17:13:43,476 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 80 proven. 20 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2024-10-18 17:13:43,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [951634983] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-18 17:13:43,476 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-18 17:13:43,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18, 7] total 39 [2024-10-18 17:13:43,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702931110] [2024-10-18 17:13:43,477 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-18 17:13:43,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-10-18 17:13:43,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 17:13:43,817 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 64 [2024-10-18 17:13:43,821 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-18 17:13:43,822 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 38 [2024-10-18 17:13:45,913 INFO L85 PathProgramCache]: Analyzing trace with hash 825242776, now seen corresponding path program 1 times [2024-10-18 17:13:45,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:13:45,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:13:45,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:13:46,152 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 9 proven. 51 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-10-18 17:13:46,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:13:46,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:13:46,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:13:46,247 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 9 proven. 51 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-10-18 17:13:46,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-10-18 17:13:46,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=227, Invalid=1843, Unknown=0, NotChecked=0, Total=2070 [2024-10-18 17:13:46,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 17:13:46,278 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 17:13:46,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 5.435897435897436) internal successors, (212), 39 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) [2024-10-18 17:13:46,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 17:13:46,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 17:13:46,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-18 17:13:46,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 17:13:46,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-10-18 17:13:46,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2024-10-18 17:13:46,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 17:13:46,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-18 17:13:46,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-10-18 17:13:46,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2024-10-18 17:13:46,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 17:14:00,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 17:14:00,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 17:14:00,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 17:14:00,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 17:14:00,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-18 17:14:00,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-10-18 17:14:00,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 17:14:00,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-18 17:14:00,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-18 17:14:00,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-10-18 17:14:00,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2024-10-18 17:14:00,831 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-10-18 17:14:01,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,SelfDestructingSolverStorable42,SelfDestructingSolverStorable43,12 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 17:14:01,023 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-18 17:14:01,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 17:14:01,023 INFO L85 PathProgramCache]: Analyzing trace with hash -361734835, now seen corresponding path program 11 times [2024-10-18 17:14:01,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 17:14:01,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659281849] [2024-10-18 17:14:01,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:14:01,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:14:01,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:14:02,209 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 180 proven. 348 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 17:14:02,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 17:14:02,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659281849] [2024-10-18 17:14:02,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659281849] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-18 17:14:02,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [477505300] [2024-10-18 17:14:02,210 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-18 17:14:02,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 17:14:02,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 17:14:02,212 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-18 17:14:02,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-18 17:14:04,049 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2024-10-18 17:14:04,049 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-18 17:14:04,057 INFO L255 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-10-18 17:14:04,059 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 17:14:04,900 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 124 proven. 376 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-18 17:14:04,900 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-18 17:14:05,283 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 49 proven. 295 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-10-18 17:14:05,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [477505300] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-18 17:14:05,283 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-18 17:14:05,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 25, 11] total 74 [2024-10-18 17:14:05,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140042140] [2024-10-18 17:14:05,284 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-18 17:14:05,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 74 states [2024-10-18 17:14:05,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 17:14:05,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2024-10-18 17:14:05,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=470, Invalid=4932, Unknown=0, NotChecked=0, Total=5402 [2024-10-18 17:14:05,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 17:14:05,536 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 17:14:05,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 74 states, 74 states have (on average 3.918918918918919) internal successors, (290), 74 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 17:14:05,537 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 17:14:05,537 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 17:14:05,537 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-18 17:14:05,537 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 17:14:05,538 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-10-18 17:14:05,538 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2024-10-18 17:14:05,538 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 17:14:05,538 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-18 17:14:05,538 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-10-18 17:14:05,538 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2024-10-18 17:14:05,538 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2024-10-18 17:14:05,538 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 17:14:13,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 17:14:13,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 17:14:13,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 17:14:13,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 17:14:13,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-18 17:14:13,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-10-18 17:14:13,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 17:14:13,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-18 17:14:13,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-18 17:14:13,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-10-18 17:14:13,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2024-10-18 17:14:13,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-10-18 17:14:13,765 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-10-18 17:14:13,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2024-10-18 17:14:13,953 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-18 17:14:13,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 17:14:13,954 INFO L85 PathProgramCache]: Analyzing trace with hash -329912922, now seen corresponding path program 12 times [2024-10-18 17:14:13,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 17:14:13,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431986386] [2024-10-18 17:14:13,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:14:13,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:14:13,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:14:15,184 INFO L134 CoverageAnalysis]: Checked inductivity of 601 backedges. 285 proven. 316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 17:14:15,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 17:14:15,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431986386] [2024-10-18 17:14:15,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431986386] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-18 17:14:15,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1547789318] [2024-10-18 17:14:15,185 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-18 17:14:15,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 17:14:15,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 17:14:15,187 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-18 17:14:15,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-18 17:14:15,680 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2024-10-18 17:14:15,681 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-18 17:14:15,683 INFO L255 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-10-18 17:14:15,685 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 17:14:15,860 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-10-18 17:14:15,895 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-10-18 17:14:16,049 INFO L134 CoverageAnalysis]: Checked inductivity of 601 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 568 trivial. 0 not checked. [2024-10-18 17:14:16,049 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-18 17:14:16,716 INFO L134 CoverageAnalysis]: Checked inductivity of 601 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 568 trivial. 0 not checked. [2024-10-18 17:14:16,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1547789318] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-18 17:14:16,717 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-18 17:14:16,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 8, 7] total 60 [2024-10-18 17:14:16,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530815039] [2024-10-18 17:14:16,717 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-18 17:14:16,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2024-10-18 17:14:16,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 17:14:16,915 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 88 [2024-10-18 17:14:16,921 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-18 17:14:16,921 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 93 treesize of output 55 [2024-10-18 17:14:16,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1281785366, now seen corresponding path program 1 times [2024-10-18 17:14:16,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:14:16,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:14:16,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 17:14:16,955 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 17:14:16,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 17:14:17,388 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 64 [2024-10-18 17:14:17,393 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-18 17:14:17,393 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 38 [2024-10-18 17:14:19,440 INFO L85 PathProgramCache]: Analyzing trace with hash 549506531, now seen corresponding path program 1 times [2024-10-18 17:14:19,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:14:19,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:14:19,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 17:14:19,565 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 17:14:19,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 17:14:19,796 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 64 [2024-10-18 17:14:19,801 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-18 17:14:19,801 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 38 [2024-10-18 17:14:21,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1302705232, now seen corresponding path program 1 times [2024-10-18 17:14:21,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:14:21,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:14:21,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:14:22,248 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 31 proven. 62 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2024-10-18 17:14:22,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 17:14:22,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 17:14:22,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 17:14:22,424 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 31 proven. 62 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2024-10-18 17:14:22,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2024-10-18 17:14:22,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=478, Invalid=3812, Unknown=0, NotChecked=0, Total=4290 [2024-10-18 17:14:22,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 17:14:22,526 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 17:14:22,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 60 states have (on average 3.783333333333333) internal successors, (227), 60 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 17:14:22,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 17:14:22,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 17:14:22,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-18 17:14:22,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 17:14:22,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-10-18 17:14:22,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2024-10-18 17:14:22,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 17:14:22,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-18 17:14:22,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-10-18 17:14:22,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2024-10-18 17:14:22,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2024-10-18 17:14:22,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2024-10-18 17:14:22,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.