/usr/bin/java -Xmx7000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --traceabstraction.prune.known.deadend.states.from.previous.iterations false -s ../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION --traceabstraction.number.of.independence.relations.to.use.for.por 2 --traceabstraction.abstraction.used.for.commutativity.in.por VARIABLES_GLOBAL '--traceabstraction.abstraction.used.for.commutativity.in.por.#2' NONE -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/parallel-ticket-6.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.dynamic-abstractions-e2ee32c-m [2023-09-07 16:34:31,622 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-09-07 16:34:31,691 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf [2023-09-07 16:34:31,694 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-09-07 16:34:31,695 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-09-07 16:34:31,695 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-09-07 16:34:31,712 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-07 16:34:31,713 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-07 16:34:31,713 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-07 16:34:31,714 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-07 16:34:31,714 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-07 16:34:31,715 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-07 16:34:31,715 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-09-07 16:34:31,715 INFO L153 SettingsManager]: * Use SBE=true [2023-09-07 16:34:31,716 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-07 16:34:31,716 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-07 16:34:31,716 INFO L153 SettingsManager]: * sizeof long=4 [2023-09-07 16:34:31,716 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-07 16:34:31,717 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-09-07 16:34:31,717 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-09-07 16:34:31,717 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-07 16:34:31,718 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-07 16:34:31,718 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-07 16:34:31,719 INFO L153 SettingsManager]: * sizeof long double=12 [2023-09-07 16:34:31,719 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-09-07 16:34:31,719 INFO L153 SettingsManager]: * Use constant arrays=true [2023-09-07 16:34:31,720 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-07 16:34:31,720 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-07 16:34:31,720 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-09-07 16:34:31,721 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-07 16:34:31,721 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-07 16:34:31,721 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-07 16:34:31,722 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-07 16:34:31,722 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-07 16:34:31,722 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-07 16:34:31,723 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-07 16:34:31,723 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-09-07 16:34:31,723 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-09-07 16:34:31,724 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-07 16:34:31,724 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2023-09-07 16:34:31,724 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/UAutomizer-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Number of independence relations to use for POR -> 2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstraction used for commutativity in POR -> VARIABLES_GLOBAL Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstraction used for commutativity in POR #2 -> NONE [2023-09-07 16:34:31,957 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-07 16:34:31,983 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-07 16:34:31,985 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-07 16:34:31,987 INFO L270 PluginConnector]: Initializing CDTParser... [2023-09-07 16:34:31,988 INFO L274 PluginConnector]: CDTParser initialized [2023-09-07 16:34:31,989 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-6.wvr.c [2023-09-07 16:34:33,134 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-09-07 16:34:33,358 INFO L384 CDTParser]: Found 1 translation units. [2023-09-07 16:34:33,359 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-6.wvr.c [2023-09-07 16:34:33,367 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25cd01383/c9c16ddb41cb4841aced9c7ad234bc40/FLAG08c87478b [2023-09-07 16:34:33,383 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25cd01383/c9c16ddb41cb4841aced9c7ad234bc40 [2023-09-07 16:34:33,388 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-07 16:34:33,391 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-09-07 16:34:33,394 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-07 16:34:33,394 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-07 16:34:33,398 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-07 16:34:33,399 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 04:34:33" (1/1) ... [2023-09-07 16:34:33,400 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12d34d02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:34:33, skipping insertion in model container [2023-09-07 16:34:33,400 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 04:34:33" (1/1) ... [2023-09-07 16:34:33,430 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-09-07 16:34:33,550 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-6.wvr.c[4400,4413] [2023-09-07 16:34:33,554 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-07 16:34:33,562 INFO L202 MainTranslator]: Completed pre-run [2023-09-07 16:34:33,585 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-6.wvr.c[4400,4413] [2023-09-07 16:34:33,586 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-07 16:34:33,592 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-09-07 16:34:33,593 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-09-07 16:34:33,598 INFO L206 MainTranslator]: Completed translation [2023-09-07 16:34:33,599 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:34:33 WrapperNode [2023-09-07 16:34:33,599 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-07 16:34:33,600 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-07 16:34:33,600 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-07 16:34:33,600 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-07 16:34:33,606 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:34:33" (1/1) ... [2023-09-07 16:34:33,613 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:34:33" (1/1) ... [2023-09-07 16:34:33,639 INFO L138 Inliner]: procedures = 25, calls = 100, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 288 [2023-09-07 16:34:33,639 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-07 16:34:33,640 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-07 16:34:33,640 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-07 16:34:33,640 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-09-07 16:34:33,648 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:34:33" (1/1) ... [2023-09-07 16:34:33,648 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:34:33" (1/1) ... [2023-09-07 16:34:33,651 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:34:33" (1/1) ... [2023-09-07 16:34:33,652 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:34:33" (1/1) ... [2023-09-07 16:34:33,658 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:34:33" (1/1) ... [2023-09-07 16:34:33,660 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:34:33" (1/1) ... [2023-09-07 16:34:33,662 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:34:33" (1/1) ... [2023-09-07 16:34:33,663 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:34:33" (1/1) ... [2023-09-07 16:34:33,666 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-07 16:34:33,666 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-07 16:34:33,667 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-09-07 16:34:33,667 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-09-07 16:34:33,667 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:34:33" (1/1) ... [2023-09-07 16:34:33,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-07 16:34:33,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 16:34:33,700 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-09-07 16:34:33,703 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-09-07 16:34:33,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-07 16:34:33,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-07 16:34:33,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-07 16:34:33,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-07 16:34:33,732 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-09-07 16:34:33,732 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-09-07 16:34:33,733 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-09-07 16:34:33,733 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-09-07 16:34:33,733 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-09-07 16:34:33,733 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-09-07 16:34:33,734 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-09-07 16:34:33,735 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-09-07 16:34:33,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-07 16:34:33,735 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2023-09-07 16:34:33,735 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2023-09-07 16:34:33,735 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2023-09-07 16:34:33,735 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2023-09-07 16:34:33,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-09-07 16:34:33,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-09-07 16:34:33,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-07 16:34:33,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-07 16:34:33,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-07 16:34:33,737 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-07 16:34:33,828 INFO L236 CfgBuilder]: Building ICFG [2023-09-07 16:34:33,830 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-07 16:34:34,078 INFO L277 CfgBuilder]: Performing block encoding [2023-09-07 16:34:34,167 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-07 16:34:34,167 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-07 16:34:34,169 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 04:34:34 BoogieIcfgContainer [2023-09-07 16:34:34,169 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-07 16:34:34,171 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-07 16:34:34,171 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-09-07 16:34:34,174 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-09-07 16:34:34,174 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 04:34:33" (1/3) ... [2023-09-07 16:34:34,175 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fde4b76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 04:34:34, skipping insertion in model container [2023-09-07 16:34:34,175 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:34:33" (2/3) ... [2023-09-07 16:34:34,175 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fde4b76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 04:34:34, skipping insertion in model container [2023-09-07 16:34:34,175 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 04:34:34" (3/3) ... [2023-09-07 16:34:34,176 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-6.wvr.c [2023-09-07 16:34:34,183 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-07 16:34:34,191 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-07 16:34:34,192 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-09-07 16:34:34,192 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-07 16:34:34,270 INFO L144 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2023-09-07 16:34:34,326 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 16:34:34,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-09-07 16:34:34,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 16:34:34,331 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-09-07 16:34:34,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-09-07 16:34:34,360 INFO L103 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 16:34:34,367 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-09-07 16:34:34,367 WARN L169 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-09-07 16:34:34,367 WARN L170 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-09-07 16:34:34,374 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2023-09-07 16:34:34,379 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@77a5617e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 16:34:34,379 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-09-07 16:34:35,020 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 16:34:35,025 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 16:34:35,026 INFO L85 PathProgramCache]: Analyzing trace with hash -2434382, now seen corresponding path program 1 times [2023-09-07 16:34:35,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 16:34:35,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910629223] [2023-09-07 16:34:35,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 16:34:35,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 16:34:35,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 16:34:35,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 16:34:35,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 16:34:35,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910629223] [2023-09-07 16:34:35,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910629223] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 16:34:35,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-07 16:34:35,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-07 16:34:35,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065453713] [2023-09-07 16:34:35,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 16:34:35,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-09-07 16:34:35,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 16:34:35,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-09-07 16:34:35,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-09-07 16:34:35,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 16:34:35,414 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 16:34:35,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 83.5) internal successors, (167), 2 states have internal predecessors, (167), 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) [2023-09-07 16:34:35,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 16:34:35,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 16:34:35,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-07 16:34:35,523 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 16:34:35,525 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 16:34:35,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1688779845, now seen corresponding path program 1 times [2023-09-07 16:34:35,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 16:34:35,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626310991] [2023-09-07 16:34:35,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 16:34:35,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 16:34:35,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 16:34:37,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 16:34:37,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 16:34:37,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626310991] [2023-09-07 16:34:37,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626310991] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 16:34:37,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-07 16:34:37,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-09-07 16:34:37,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231339513] [2023-09-07 16:34:37,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 16:34:37,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-09-07 16:34:37,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 16:34:37,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-09-07 16:34:37,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-09-07 16:34:37,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 16:34:37,489 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 16:34:37,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 13.75) internal successors, (165), 12 states have internal predecessors, (165), 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) [2023-09-07 16:34:37,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 16:34:37,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 16:34:56,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 16:34:56,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-09-07 16:34:56,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-07 16:34:56,377 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 16:34:56,377 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 16:34:56,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1463529713, now seen corresponding path program 2 times [2023-09-07 16:34:56,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 16:34:56,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978651843] [2023-09-07 16:34:56,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 16:34:56,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 16:34:56,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 16:34:56,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 16:34:56,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 16:34:56,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978651843] [2023-09-07 16:34:56,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978651843] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 16:34:56,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-07 16:34:56,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-09-07 16:34:56,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57692310] [2023-09-07 16:34:56,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 16:34:56,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-07 16:34:56,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 16:34:56,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-07 16:34:56,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-09-07 16:34:56,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 16:34:56,725 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 16:34:56,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 7 states have internal predecessors, (165), 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) [2023-09-07 16:34:56,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 16:34:56,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-09-07 16:34:56,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 16:35:24,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 16:35:24,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-09-07 16:35:24,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-07 16:35:24,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-07 16:35:24,154 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 16:35:24,154 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 16:35:24,154 INFO L85 PathProgramCache]: Analyzing trace with hash 157390975, now seen corresponding path program 3 times [2023-09-07 16:35:24,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 16:35:24,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009289377] [2023-09-07 16:35:24,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 16:35:24,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 16:35:24,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 16:35:24,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 16:35:24,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 16:35:24,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009289377] [2023-09-07 16:35:24,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009289377] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 16:35:24,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-07 16:35:24,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-09-07 16:35:24,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119484863] [2023-09-07 16:35:24,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 16:35:24,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-09-07 16:35:24,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 16:35:24,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-09-07 16:35:24,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-09-07 16:35:24,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 16:35:24,489 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 16:35:24,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.625) internal successors, (165), 8 states have internal predecessors, (165), 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) [2023-09-07 16:35:24,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 16:35:24,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-09-07 16:35:24,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-09-07 16:35:24,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 16:36:07,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 16:36:07,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-09-07 16:36:07,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-07 16:36:07,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-09-07 16:36:07,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-07 16:36:07,606 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 16:36:07,606 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 16:36:07,606 INFO L85 PathProgramCache]: Analyzing trace with hash 2042396691, now seen corresponding path program 4 times [2023-09-07 16:36:07,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 16:36:07,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592414474] [2023-09-07 16:36:07,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 16:36:07,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 16:36:07,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 16:36:07,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 16:36:07,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 16:36:07,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592414474] [2023-09-07 16:36:07,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592414474] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 16:36:07,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-07 16:36:07,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-09-07 16:36:07,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650532910] [2023-09-07 16:36:07,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 16:36:07,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-09-07 16:36:07,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 16:36:07,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-09-07 16:36:07,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-09-07 16:36:07,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 16:36:07,924 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 16:36:07,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.333333333333332) internal successors, (165), 9 states have internal predecessors, (165), 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) [2023-09-07 16:36:07,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 16:36:07,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-09-07 16:36:07,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-09-07 16:36:07,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-09-07 16:36:07,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.