./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-min-max-dec.wvr.c --full-output --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking COUNTEREXAMPLE --traceabstraction.criterion.for.conditional.commutativity.checking RANDOM --traceabstraction.probability.for.random.criterion 50 --traceabstraction.seed.for.random.criterion 213 -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-dec.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 67ced8cbf918778cce3ae5cae291c50696df3950945fdf68713903c29ac269e1 --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking COUNTEREXAMPLE --traceabstraction.criterion.for.conditional.commutativity.checking RANDOM --traceabstraction.probability.for.random.criterion 50 --traceabstraction.seed.for.random.criterion 213 -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 06:01:26,333 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-18 06:01:26,412 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-10-18 06:01:26,417 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-18 06:01:26,417 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-18 06:01:26,443 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-18 06:01:26,444 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-18 06:01:26,445 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-18 06:01:26,445 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-18 06:01:26,446 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-18 06:01:26,446 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-18 06:01:26,447 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-18 06:01:26,447 INFO L153 SettingsManager]: * Use SBE=true [2024-10-18 06:01:26,447 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-18 06:01:26,448 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-18 06:01:26,448 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-18 06:01:26,448 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-18 06:01:26,449 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-18 06:01:26,451 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-18 06:01:26,452 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-18 06:01:26,452 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-18 06:01:26,453 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-18 06:01:26,453 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-18 06:01:26,453 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-18 06:01:26,453 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-18 06:01:26,454 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-18 06:01:26,454 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-18 06:01:26,454 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-18 06:01:26,454 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-18 06:01:26,455 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-18 06:01:26,455 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-18 06:01:26,455 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-18 06:01:26,455 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-18 06:01:26,456 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-10-18 06:01:26,456 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-18 06:01:26,456 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-18 06:01:26,457 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-18 06:01:26,457 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-18 06:01:26,458 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-18 06:01:26,458 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-18 06:01:26,458 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-18 06:01:26,459 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 -> 67ced8cbf918778cce3ae5cae291c50696df3950945fdf68713903c29ac269e1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional conditional commutativity checking -> COUNTEREXAMPLE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Criterion for conditional commutativity checking -> RANDOM Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Probability for random criterion as percentage -> 50 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Seed for random criterion -> 213 [2024-10-18 06:01:26,738 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-18 06:01:26,767 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-18 06:01:26,771 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-18 06:01:26,772 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-18 06:01:26,772 INFO L274 PluginConnector]: CDTParser initialized [2024-10-18 06:01:26,774 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-min-max-dec.wvr.c [2024-10-18 06:01:28,271 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-18 06:01:28,456 INFO L384 CDTParser]: Found 1 translation units. [2024-10-18 06:01:28,457 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-min-max-dec.wvr.c [2024-10-18 06:01:28,467 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/2b2e84130/b457168e344f4fac94e4501f5431d6a6/FLAGf8126459e [2024-10-18 06:01:28,480 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/2b2e84130/b457168e344f4fac94e4501f5431d6a6 [2024-10-18 06:01:28,482 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-18 06:01:28,484 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-18 06:01:28,485 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-18 06:01:28,485 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-18 06:01:28,489 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-18 06:01:28,490 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.10 06:01:28" (1/1) ... [2024-10-18 06:01:28,491 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f575f51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 06:01:28, skipping insertion in model container [2024-10-18 06:01:28,491 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.10 06:01:28" (1/1) ... [2024-10-18 06:01:28,515 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-18 06:01:28,756 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-dec.wvr.c[3071,3084] [2024-10-18 06:01:28,771 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-18 06:01:28,784 INFO L200 MainTranslator]: Completed pre-run [2024-10-18 06:01:28,808 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-min-max-dec.wvr.c[3071,3084] [2024-10-18 06:01:28,811 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-18 06:01:28,828 INFO L204 MainTranslator]: Completed translation [2024-10-18 06:01:28,829 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 06:01:28 WrapperNode [2024-10-18 06:01:28,830 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-18 06:01:28,832 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-18 06:01:28,832 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-18 06:01:28,833 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-18 06:01:28,840 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 06:01:28" (1/1) ... [2024-10-18 06:01:28,848 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 06:01:28" (1/1) ... [2024-10-18 06:01:28,877 INFO L138 Inliner]: procedures = 25, calls = 43, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 117 [2024-10-18 06:01:28,877 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-18 06:01:28,878 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-18 06:01:28,878 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-18 06:01:28,879 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-18 06:01:28,888 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 06:01:28" (1/1) ... [2024-10-18 06:01:28,889 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 06:01:28" (1/1) ... [2024-10-18 06:01:28,892 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 06:01:28" (1/1) ... [2024-10-18 06:01:28,892 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 06:01:28" (1/1) ... [2024-10-18 06:01:28,899 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 06:01:28" (1/1) ... [2024-10-18 06:01:28,903 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 06:01:28" (1/1) ... [2024-10-18 06:01:28,904 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 06:01:28" (1/1) ... [2024-10-18 06:01:28,906 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 06:01:28" (1/1) ... [2024-10-18 06:01:28,908 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-18 06:01:28,909 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-18 06:01:28,909 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-18 06:01:28,910 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-18 06:01:28,910 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 06:01:28" (1/1) ... [2024-10-18 06:01:28,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-18 06:01:28,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 06:01:28,954 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 06:01:28,957 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 06:01:29,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-18 06:01:29,005 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-18 06:01:29,006 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-18 06:01:29,006 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-18 06:01:29,007 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-18 06:01:29,007 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-18 06:01:29,007 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-18 06:01:29,008 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-10-18 06:01:29,008 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-10-18 06:01:29,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-18 06:01:29,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-18 06:01:29,009 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-18 06:01:29,010 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-18 06:01:29,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-18 06:01:29,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-18 06:01:29,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-18 06:01:29,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-18 06:01:29,013 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 06:01:29,118 INFO L238 CfgBuilder]: Building ICFG [2024-10-18 06:01:29,120 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-18 06:01:29,393 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-18 06:01:29,393 INFO L287 CfgBuilder]: Performing block encoding [2024-10-18 06:01:29,682 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-18 06:01:29,682 INFO L314 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-18 06:01:29,683 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.10 06:01:29 BoogieIcfgContainer [2024-10-18 06:01:29,683 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-18 06:01:29,687 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-18 06:01:29,687 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-18 06:01:29,690 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-18 06:01:29,690 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.10 06:01:28" (1/3) ... [2024-10-18 06:01:29,691 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7733a8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.10 06:01:29, skipping insertion in model container [2024-10-18 06:01:29,691 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 06:01:28" (2/3) ... [2024-10-18 06:01:29,692 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7733a8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.10 06:01:29, skipping insertion in model container [2024-10-18 06:01:29,692 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.10 06:01:29" (3/3) ... [2024-10-18 06:01:29,694 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-min-max-dec.wvr.c [2024-10-18 06:01:29,716 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-18 06:01:29,716 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-18 06:01:29,716 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-18 06:01:29,778 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-18 06:01:29,834 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-18 06:01:29,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-18 06:01:29,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 06:01:29,838 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 06:01:29,840 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 06:01:29,940 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-18 06:01:29,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 06:01:29,962 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-18 06:01:29,971 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;@105ab3f2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=COUNTEREXAMPLE, mConComCheckerCriterion=RANDOM, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=50, mConComCheckerRandomSeed=213, mConComCheckerConditionCriterion=false [2024-10-18 06:01:29,972 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-10-18 06:01:31,702 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 06:01:31,868 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 61 treesize of output 51 [2024-10-18 06:01:31,884 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-18 06:01:31,887 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 46 treesize of output 26 [2024-10-18 06:01:31,922 INFO L85 PathProgramCache]: Analyzing trace with hash -244029565, now seen corresponding path program 1 times [2024-10-18 06:01:31,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 06:01:31,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 06:01:32,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 06:01:32,315 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-18 06:01:32,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 06:01:32,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 06:01:32,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 06:01:32,448 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-18 06:01:32,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-18 06:01:32,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-18 06:01:32,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-18 06:01:32,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 06:01:32,488 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 06:01:32,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 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 06:01:32,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 06:01:32,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 06:01:32,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,SelfDestructingSolverStorable0 [2024-10-18 06:01:32,580 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 06:01:32,696 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 78 treesize of output 66 [2024-10-18 06:01:32,704 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-18 06:01:32,705 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 66 treesize of output 40 [2024-10-18 06:01:34,809 INFO L85 PathProgramCache]: Analyzing trace with hash 565391465, now seen corresponding path program 1 times [2024-10-18 06:01:34,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 06:01:34,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 06:01:34,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 06:01:34,988 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-18 06:01:34,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 06:01:34,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 06:01:35,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 06:01:35,103 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-18 06:01:35,213 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 106 treesize of output 90 [2024-10-18 06:01:35,221 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-18 06:01:35,221 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 95 treesize of output 57 [2024-10-18 06:01:35,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1816611674, now seen corresponding path program 1 times [2024-10-18 06:01:35,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 06:01:35,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 06:01:35,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 06:01:35,423 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-18 06:01:35,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 06:01:35,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 06:01:35,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 06:01:35,575 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-18 06:01:35,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 06:01:35,579 INFO L85 PathProgramCache]: Analyzing trace with hash -656874439, now seen corresponding path program 1 times [2024-10-18 06:01:35,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 06:01:35,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283185252] [2024-10-18 06:01:35,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 06:01:35,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 06:01:35,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 06:01:35,791 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 06:01:35,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 06:01:35,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283185252] [2024-10-18 06:01:35,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283185252] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-18 06:01:35,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2002511874] [2024-10-18 06:01:35,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 06:01:35,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 06:01:35,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 06:01:35,813 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 06:01:35,815 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 06:01:35,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 06:01:35,948 INFO L255 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-18 06:01:35,954 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 06:01:36,114 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 06:01:36,115 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-18 06:01:36,230 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 06:01:36,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2002511874] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-18 06:01:36,231 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-18 06:01:36,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2024-10-18 06:01:36,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519326188] [2024-10-18 06:01:36,233 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-18 06:01:36,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-18 06:01:36,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 06:01:36,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-18 06:01:36,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-10-18 06:01:36,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 06:01:36,239 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 06:01:36,240 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 06:01:36,240 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 06:01:36,240 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 06:01:36,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 06:01:36,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 06:01:36,477 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 06:01:36,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,SelfDestructingSolverStorable3,3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2,SelfDestructingSolverStorable6,SelfDestructingSolverStorable5 [2024-10-18 06:01:36,660 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 06:01:36,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 06:01:36,661 INFO L85 PathProgramCache]: Analyzing trace with hash 176981916, now seen corresponding path program 2 times [2024-10-18 06:01:36,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 06:01:36,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092289462] [2024-10-18 06:01:36,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 06:01:36,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 06:01:36,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 06:01:37,075 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 06:01:37,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 06:01:37,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092289462] [2024-10-18 06:01:37,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092289462] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-18 06:01:37,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [750649922] [2024-10-18 06:01:37,076 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-18 06:01:37,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 06:01:37,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 06:01:37,078 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 06:01:37,080 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 06:01:37,203 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-18 06:01:37,203 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-18 06:01:37,205 INFO L255 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-18 06:01:37,208 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 06:01:37,244 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 15 treesize of output 7 [2024-10-18 06:01:37,363 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 06:01:37,363 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-18 06:01:37,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [750649922] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 06:01:37,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-18 06:01:37,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [15] total 19 [2024-10-18 06:01:37,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134011016] [2024-10-18 06:01:37,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 06:01:37,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-18 06:01:37,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 06:01:37,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-18 06:01:37,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2024-10-18 06:01:37,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 06:01:37,368 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 06:01:37,368 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 06:01:37,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 06:01:37,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 06:01:37,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 06:01:39,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 06:01:39,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 06:01:39,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-18 06:01:39,406 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 06:01:39,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 06:01:39,591 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 06:01:39,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 06:01:39,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1421207449, now seen corresponding path program 3 times [2024-10-18 06:01:39,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 06:01:39,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504267815] [2024-10-18 06:01:39,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 06:01:39,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 06:01:39,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 06:01:40,159 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 50 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 06:01:40,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 06:01:40,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504267815] [2024-10-18 06:01:40,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504267815] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-18 06:01:40,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1136073557] [2024-10-18 06:01:40,161 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-18 06:01:40,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 06:01:40,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 06:01:40,164 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 06:01:40,165 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 06:01:40,263 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-10-18 06:01:40,263 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-18 06:01:40,265 INFO L255 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-18 06:01:40,267 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 06:01:40,382 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2024-10-18 06:01:40,382 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-18 06:01:40,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1136073557] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 06:01:40,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-18 06:01:40,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [17] total 19 [2024-10-18 06:01:40,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025067777] [2024-10-18 06:01:40,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 06:01:40,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-18 06:01:40,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 06:01:40,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-18 06:01:40,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2024-10-18 06:01:40,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 06:01:40,385 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 06:01:40,385 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 06:01:40,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 06:01:40,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 06:01:40,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-18 06:01:40,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 06:01:41,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 06:01:41,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 06:01:41,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-18 06:01:41,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 06:01:41,215 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-18 06:01:41,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 06:01:41,402 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 06:01:41,457 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 42 treesize of output 34 [2024-10-18 06:01:41,465 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-18 06:01:41,465 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 33 treesize of output 23 [2024-10-18 06:01:41,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1590380782, now seen corresponding path program 1 times [2024-10-18 06:01:41,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 06:01:41,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 06:01:41,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 06:01:41,508 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 06:01:41,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 06:01:41,643 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 78 treesize of output 66 [2024-10-18 06:01:41,652 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-18 06:01:41,652 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 66 treesize of output 40 [2024-10-18 06:01:43,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1208661026, now seen corresponding path program 1 times [2024-10-18 06:01:43,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 06:01:43,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 06:01:43,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 06:01:44,161 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 06:01:44,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 06:01:44,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 06:01:44,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 06:01:44,390 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 06:01:44,496 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 89 treesize of output 75 [2024-10-18 06:01:44,502 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-18 06:01:44,502 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 75 treesize of output 43 [2024-10-18 06:01:44,519 INFO L85 PathProgramCache]: Analyzing trace with hash -686744225, now seen corresponding path program 1 times [2024-10-18 06:01:44,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 06:01:44,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 06:01:44,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 06:01:44,937 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-18 06:01:44,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 06:01:44,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 06:01:44,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 06:01:45,163 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-18 06:01:45,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 06:01:45,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1626288739, now seen corresponding path program 4 times [2024-10-18 06:01:45,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 06:01:45,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13501753] [2024-10-18 06:01:45,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 06:01:45,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 06:01:45,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 06:01:45,570 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 50 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 06:01:45,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 06:01:45,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13501753] [2024-10-18 06:01:45,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13501753] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-18 06:01:45,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [152539151] [2024-10-18 06:01:45,574 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-18 06:01:45,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 06:01:45,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 06:01:45,576 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 06:01:45,579 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 06:01:45,683 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-18 06:01:45,683 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-18 06:01:45,685 INFO L255 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-18 06:01:45,687 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 06:01:46,022 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 64 proven. 23 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-18 06:01:46,023 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-18 06:01:46,238 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 56 proven. 27 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-18 06:01:46,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [152539151] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-18 06:01:46,239 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-18 06:01:46,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 11, 9] total 34 [2024-10-18 06:01:46,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384835424] [2024-10-18 06:01:46,239 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-18 06:01:46,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-10-18 06:01:46,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 06:01:46,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-10-18 06:01:46,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=968, Unknown=0, NotChecked=0, Total=1122 [2024-10-18 06:01:46,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 06:01:46,242 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 06:01:46,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 5.147058823529412) internal successors, (175), 34 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 06:01:46,242 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 06:01:46,242 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 06:01:46,242 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-18 06:01:46,242 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 06:01:46,242 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 06:01:52,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 06:01:52,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 06:01:52,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-18 06:01:52,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 06:01:52,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-10-18 06:01:52,907 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-18 06:01:53,095 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,SelfDestructingSolverStorable10,SelfDestructingSolverStorable11,SelfDestructingSolverStorable12,SelfDestructingSolverStorable9,SelfDestructingSolverStorable13,SelfDestructingSolverStorable14 [2024-10-18 06:01:53,096 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 06:01:53,141 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 42 treesize of output 34 [2024-10-18 06:01:53,148 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-18 06:01:53,148 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 33 treesize of output 23 [2024-10-18 06:01:53,155 INFO L85 PathProgramCache]: Analyzing trace with hash 793964294, now seen corresponding path program 1 times [2024-10-18 06:01:53,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 06:01:53,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 06:01:53,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 06:01:53,174 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 06:01:53,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 06:01:53,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 06:01:53,213 INFO L85 PathProgramCache]: Analyzing trace with hash -903448220, now seen corresponding path program 5 times [2024-10-18 06:01:53,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 06:01:53,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735079174] [2024-10-18 06:01:53,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 06:01:53,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 06:01:53,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 06:01:53,830 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 35 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 06:01:53,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 06:01:53,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735079174] [2024-10-18 06:01:53,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735079174] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-18 06:01:53,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [704469069] [2024-10-18 06:01:53,831 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-18 06:01:53,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 06:01:53,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 06:01:53,832 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 06:01:53,833 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 06:01:54,126 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2024-10-18 06:01:54,127 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-18 06:01:54,129 INFO L255 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-18 06:01:54,131 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 06:01:54,437 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 104 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-18 06:01:54,438 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-18 06:01:54,694 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 104 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-18 06:01:54,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [704469069] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-18 06:01:54,694 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-18 06:01:54,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 11, 11] total 42 [2024-10-18 06:01:54,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925550850] [2024-10-18 06:01:54,695 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-18 06:01:54,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2024-10-18 06:01:54,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 06:01:54,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2024-10-18 06:01:54,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=262, Invalid=1544, Unknown=0, NotChecked=0, Total=1806 [2024-10-18 06:01:54,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 06:01:54,698 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 06:01:54,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 4.883720930232558) internal successors, (210), 42 states have internal predecessors, (210), 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 06:01:54,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 06:01:54,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 06:01:54,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-18 06:01:54,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 06:01:54,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2024-10-18 06:01:54,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 06:01:55,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 06:01:55,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 06:01:55,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-18 06:01:55,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 06:01:55,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-10-18 06:01:55,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-18 06:01:55,378 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 06:01:55,566 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,SelfDestructingSolverStorable15,SelfDestructingSolverStorable16 [2024-10-18 06:01:55,567 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 06:01:55,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 06:01:55,578 INFO L85 PathProgramCache]: Analyzing trace with hash -390742588, now seen corresponding path program 6 times [2024-10-18 06:01:55,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 06:01:55,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564654178] [2024-10-18 06:01:55,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 06:01:55,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 06:01:55,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 06:01:56,296 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2024-10-18 06:01:56,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 06:01:56,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564654178] [2024-10-18 06:01:56,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564654178] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-18 06:01:56,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2017804716] [2024-10-18 06:01:56,298 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-18 06:01:56,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 06:01:56,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 06:01:56,300 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 06:01:56,301 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 06:01:56,598 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2024-10-18 06:01:56,598 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-18 06:01:56,602 INFO L255 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-10-18 06:01:56,604 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 06:01:56,804 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 06:01:56,822 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 06:01:56,887 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2024-10-18 06:01:56,887 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-18 06:01:57,650 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2024-10-18 06:01:57,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2017804716] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-18 06:01:57,650 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-18 06:01:57,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 8] total 23 [2024-10-18 06:01:57,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943417662] [2024-10-18 06:01:57,650 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-18 06:01:57,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-18 06:01:57,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 06:01:57,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-18 06:01:57,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=396, Unknown=0, NotChecked=0, Total=506 [2024-10-18 06:01:57,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 06:01:57,655 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 06:01:57,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.826086956521739) internal successors, (134), 23 states have internal predecessors, (134), 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 06:01:57,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 06:01:57,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 06:01:57,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-18 06:01:57,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 06:01:57,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2024-10-18 06:01:57,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-10-18 06:01:57,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 06:02:05,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 06:02:05,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 06:02:05,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-18 06:02:05,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 06:02:05,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-10-18 06:02:05,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-18 06:02:05,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-10-18 06:02:05,438 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-18 06:02:05,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-10-18 06:02:05,625 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 06:02:05,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 06:02:05,637 INFO L85 PathProgramCache]: Analyzing trace with hash -2033446550, now seen corresponding path program 7 times [2024-10-18 06:02:05,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 06:02:05,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851569676] [2024-10-18 06:02:05,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 06:02:05,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 06:02:05,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 06:02:06,272 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 116 proven. 73 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-18 06:02:06,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 06:02:06,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851569676] [2024-10-18 06:02:06,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851569676] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-18 06:02:06,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [297201812] [2024-10-18 06:02:06,273 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-18 06:02:06,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 06:02:06,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 06:02:06,275 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 06:02:06,277 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 06:02:06,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 06:02:06,412 INFO L255 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-18 06:02:06,414 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 06:02:06,880 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 155 proven. 15 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-10-18 06:02:06,880 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-18 06:02:07,270 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 155 proven. 15 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-10-18 06:02:07,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [297201812] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-18 06:02:07,270 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-18 06:02:07,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 14, 14] total 47 [2024-10-18 06:02:07,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141865928] [2024-10-18 06:02:07,271 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-18 06:02:07,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-10-18 06:02:07,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 06:02:07,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-10-18 06:02:07,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=374, Invalid=1882, Unknown=0, NotChecked=0, Total=2256 [2024-10-18 06:02:07,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 06:02:07,274 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 06:02:07,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 4.520833333333333) internal successors, (217), 47 states have internal predecessors, (217), 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 06:02:07,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 06:02:07,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 06:02:07,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-18 06:02:07,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 06:02:07,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2024-10-18 06:02:07,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-10-18 06:02:07,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2024-10-18 06:02:07,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 06:02:08,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 06:02:08,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 06:02:08,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-18 06:02:08,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 06:02:08,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-10-18 06:02:08,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-18 06:02:08,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-10-18 06:02:08,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-18 06:02:08,341 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-18 06:02:08,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 06:02:08,529 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 06:02:08,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 06:02:08,543 INFO L85 PathProgramCache]: Analyzing trace with hash -698183091, now seen corresponding path program 8 times [2024-10-18 06:02:08,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 06:02:08,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390949754] [2024-10-18 06:02:08,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 06:02:08,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 06:02:08,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 06:02:08,935 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 26 proven. 154 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-18 06:02:08,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 06:02:08,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390949754] [2024-10-18 06:02:08,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390949754] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-18 06:02:08,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [31879447] [2024-10-18 06:02:08,936 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-18 06:02:08,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 06:02:08,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 06:02:08,940 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 06:02:08,941 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 06:02:09,084 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-18 06:02:09,084 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-18 06:02:09,087 INFO L255 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-10-18 06:02:09,089 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 06:02:09,566 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 169 proven. 21 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-18 06:02:09,566 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-18 06:02:10,044 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 169 proven. 21 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-18 06:02:10,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [31879447] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-18 06:02:10,045 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-18 06:02:10,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 16, 16] total 43 [2024-10-18 06:02:10,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171103588] [2024-10-18 06:02:10,046 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-18 06:02:10,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-10-18 06:02:10,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 06:02:10,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-10-18 06:02:10,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=319, Invalid=1573, Unknown=0, NotChecked=0, Total=1892 [2024-10-18 06:02:10,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 06:02:10,048 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 06:02:10,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 5.431818181818182) internal successors, (239), 43 states have internal predecessors, (239), 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 06:02:10,048 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 06:02:10,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 06:02:10,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-18 06:02:10,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 06:02:10,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2024-10-18 06:02:10,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-10-18 06:02:10,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2024-10-18 06:02:10,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-10-18 06:02:10,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 06:02:13,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 06:02:13,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 06:02:13,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-18 06:02:13,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 06:02:13,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-10-18 06:02:13,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-18 06:02:13,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-10-18 06:02:13,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-18 06:02:13,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-18 06:02:13,621 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-10-18 06:02:13,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 06:02:13,806 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 06:02:13,845 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 42 treesize of output 34 [2024-10-18 06:02:13,850 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-18 06:02:13,850 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 33 treesize of output 23 [2024-10-18 06:02:13,858 INFO L85 PathProgramCache]: Analyzing trace with hash 372313353, now seen corresponding path program 1 times [2024-10-18 06:02:13,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 06:02:13,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 06:02:13,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 06:02:13,985 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 7 proven. 15 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-10-18 06:02:13,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 06:02:13,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 06:02:14,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 06:02:14,037 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 7 proven. 15 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-10-18 06:02:14,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 06:02:14,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1715046802, now seen corresponding path program 9 times [2024-10-18 06:02:14,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 06:02:14,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747762886] [2024-10-18 06:02:14,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 06:02:14,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 06:02:14,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 06:02:15,629 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 162 proven. 304 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 06:02:15,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 06:02:15,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747762886] [2024-10-18 06:02:15,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747762886] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-18 06:02:15,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [985473523] [2024-10-18 06:02:15,630 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-18 06:02:15,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 06:02:15,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 06:02:15,632 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 06:02:15,634 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 06:02:16,019 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2024-10-18 06:02:16,020 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-18 06:02:16,023 INFO L255 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-10-18 06:02:16,025 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 06:02:16,656 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 418 proven. 28 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-10-18 06:02:16,656 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-18 06:02:17,278 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 297 proven. 149 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-10-18 06:02:17,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [985473523] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-18 06:02:17,278 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-18 06:02:17,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 18, 18] total 74 [2024-10-18 06:02:17,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002221614] [2024-10-18 06:02:17,279 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-18 06:02:17,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2024-10-18 06:02:17,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 06:02:17,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2024-10-18 06:02:17,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=701, Invalid=4849, Unknown=0, NotChecked=0, Total=5550 [2024-10-18 06:02:17,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 06:02:17,282 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 06:02:17,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 75 states have (on average 4.093333333333334) internal successors, (307), 74 states have internal predecessors, (307), 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 06:02:17,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 06:02:17,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 06:02:17,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-18 06:02:17,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 06:02:17,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2024-10-18 06:02:17,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-10-18 06:02:17,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2024-10-18 06:02:17,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-10-18 06:02:17,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-10-18 06:02:17,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 06:02:20,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 06:02:20,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 06:02:20,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-18 06:02:20,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 06:02:20,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-10-18 06:02:20,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-18 06:02:20,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-10-18 06:02:20,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-18 06:02:20,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-18 06:02:20,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-18 06:02:20,198 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-10-18 06:02:20,383 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,SelfDestructingSolverStorable20,SelfDestructingSolverStorable21,SelfDestructingSolverStorable22 [2024-10-18 06:02:20,384 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 06:02:20,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 06:02:20,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1864500687, now seen corresponding path program 10 times [2024-10-18 06:02:20,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 06:02:20,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136337874] [2024-10-18 06:02:20,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 06:02:20,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 06:02:20,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 06:02:21,005 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 252 proven. 206 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-18 06:02:21,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 06:02:21,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136337874] [2024-10-18 06:02:21,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136337874] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-18 06:02:21,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1495470336] [2024-10-18 06:02:21,006 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-18 06:02:21,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 06:02:21,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 06:02:21,008 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 06:02:21,009 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 06:02:21,157 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-18 06:02:21,158 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-18 06:02:21,164 INFO L255 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-10-18 06:02:21,167 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 06:02:21,945 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 49 proven. 388 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-10-18 06:02:21,945 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-18 06:02:22,168 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 133 proven. 30 refuted. 0 times theorem prover too weak. 311 trivial. 0 not checked. [2024-10-18 06:02:22,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1495470336] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-18 06:02:22,168 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-18 06:02:22,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 25, 7] total 48 [2024-10-18 06:02:22,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386538854] [2024-10-18 06:02:22,169 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-18 06:02:22,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-10-18 06:02:22,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 06:02:22,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-10-18 06:02:22,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=218, Invalid=2038, Unknown=0, NotChecked=0, Total=2256 [2024-10-18 06:02:22,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 06:02:22,172 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 06:02:22,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 5.458333333333333) internal successors, (262), 48 states have internal predecessors, (262), 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 06:02:22,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 06:02:22,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 06:02:22,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-18 06:02:22,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 06:02:22,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2024-10-18 06:02:22,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-10-18 06:02:22,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2024-10-18 06:02:22,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-10-18 06:02:22,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-10-18 06:02:22,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-10-18 06:02:22,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 06:03:00,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 06:03:00,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 06:03:00,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-18 06:03:00,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 06:03:00,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-10-18 06:03:00,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-18 06:03:00,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-10-18 06:03:00,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-18 06:03:00,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-18 06:03:00,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-18 06:03:00,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2024-10-18 06:03:00,340 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 06:03:00,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,12 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 06:03:00,528 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 06:03:00,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 06:03:00,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1634988405, now seen corresponding path program 11 times [2024-10-18 06:03:00,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 06:03:00,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166564697] [2024-10-18 06:03:00,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 06:03:00,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 06:03:00,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 06:03:01,274 INFO L134 CoverageAnalysis]: Checked inductivity of 1257 backedges. 421 proven. 574 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2024-10-18 06:03:01,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 06:03:01,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166564697] [2024-10-18 06:03:01,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166564697] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-18 06:03:01,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1252822981] [2024-10-18 06:03:01,276 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-18 06:03:01,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 06:03:01,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 06:03:01,278 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 06:03:01,278 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 06:03:11,601 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 21 check-sat command(s) [2024-10-18 06:03:11,601 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-18 06:03:11,618 INFO L255 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-10-18 06:03:11,621 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 06:03:12,981 INFO L134 CoverageAnalysis]: Checked inductivity of 1257 backedges. 91 proven. 1120 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-10-18 06:03:12,981 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-18 06:03:13,261 INFO L134 CoverageAnalysis]: Checked inductivity of 1257 backedges. 96 proven. 213 refuted. 0 times theorem prover too weak. 948 trivial. 0 not checked. [2024-10-18 06:03:13,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1252822981] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-18 06:03:13,261 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-18 06:03:13,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 41, 7] total 66 [2024-10-18 06:03:13,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767806923] [2024-10-18 06:03:13,262 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-18 06:03:13,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2024-10-18 06:03:13,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 06:03:13,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2024-10-18 06:03:13,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=380, Invalid=3910, Unknown=0, NotChecked=0, Total=4290 [2024-10-18 06:03:13,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 06:03:13,265 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 06:03:13,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 5.0) internal successors, (330), 66 states have internal predecessors, (330), 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 06:03:13,266 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 06:03:13,266 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 06:03:13,266 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-18 06:03:13,266 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 06:03:13,266 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2024-10-18 06:03:13,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-10-18 06:03:13,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2024-10-18 06:03:13,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-10-18 06:03:13,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-10-18 06:03:13,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-10-18 06:03:13,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 138 states. [2024-10-18 06:03:13,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.