/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithoutDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/parallel-misc-4.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-10 14:02:10,770 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-10 14:02:10,772 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-10 14:02:10,869 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-10 14:02:10,869 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-10 14:02:10,870 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-10 14:02:10,874 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-10 14:02:10,879 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-10 14:02:10,881 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-10 14:02:10,884 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-10 14:02:10,885 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-10 14:02:10,886 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-10 14:02:10,886 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-10 14:02:10,887 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-10 14:02:10,888 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-10 14:02:10,889 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-10 14:02:10,890 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-10 14:02:10,891 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-10 14:02:10,893 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-10 14:02:10,898 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-10 14:02:10,899 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-10 14:02:10,901 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-10 14:02:10,902 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-10 14:02:10,903 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-10 14:02:10,909 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-10 14:02:10,913 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-10 14:02:10,913 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-10 14:02:10,915 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-10 14:02:10,916 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-10 14:02:10,917 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-10 14:02:10,918 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-10 14:02:10,918 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-10 14:02:10,918 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-10 14:02:10,919 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-10 14:02:10,919 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-10 14:02:10,920 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-10 14:02:10,921 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithoutDepranks-Lazy.epf [2022-02-10 14:02:10,948 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-10 14:02:10,949 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-10 14:02:10,949 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-10 14:02:10,949 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-10 14:02:10,950 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-10 14:02:10,950 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-10 14:02:10,950 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-10 14:02:10,950 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-10 14:02:10,950 INFO L138 SettingsManager]: * Use SBE=true [2022-02-10 14:02:10,951 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-10 14:02:10,951 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-10 14:02:10,951 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-10 14:02:10,951 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-10 14:02:10,951 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-10 14:02:10,952 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-10 14:02:10,952 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-10 14:02:10,952 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-10 14:02:10,952 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-10 14:02:10,952 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-10 14:02:10,952 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-10 14:02:10,952 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-10 14:02:10,952 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-10 14:02:10,952 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-10 14:02:10,952 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-10 14:02:10,952 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-10 14:02:10,953 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 14:02:10,953 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-10 14:02:10,953 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-10 14:02:10,953 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-10 14:02:10,953 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-10 14:02:10,953 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-10 14:02:10,953 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-10 14:02:10,953 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-10 14:02:10,953 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-10 14:02:10,953 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-10 14:02:10,954 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-02-10 14:02:10,954 INFO L138 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-10 14:02:11,189 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-10 14:02:11,216 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-10 14:02:11,218 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-10 14:02:11,218 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-10 14:02:11,219 INFO L275 PluginConnector]: CDTParser initialized [2022-02-10 14:02:11,220 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-misc-4.wvr.c [2022-02-10 14:02:11,264 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c3493622/802c610dfa2040bd9b38515a6af3b35d/FLAG3b3498b3a [2022-02-10 14:02:11,668 INFO L306 CDTParser]: Found 1 translation units. [2022-02-10 14:02:11,669 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-4.wvr.c [2022-02-10 14:02:11,678 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c3493622/802c610dfa2040bd9b38515a6af3b35d/FLAG3b3498b3a [2022-02-10 14:02:12,063 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c3493622/802c610dfa2040bd9b38515a6af3b35d [2022-02-10 14:02:12,065 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-10 14:02:12,066 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-10 14:02:12,069 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-10 14:02:12,069 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-10 14:02:12,071 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-10 14:02:12,072 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 02:02:12" (1/1) ... [2022-02-10 14:02:12,073 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2185d6de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 02:02:12, skipping insertion in model container [2022-02-10 14:02:12,073 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 02:02:12" (1/1) ... [2022-02-10 14:02:12,109 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-10 14:02:12,127 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-10 14:02:12,318 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-4.wvr.c[2950,2963] [2022-02-10 14:02:12,321 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 14:02:12,327 INFO L203 MainTranslator]: Completed pre-run [2022-02-10 14:02:12,346 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-4.wvr.c[2950,2963] [2022-02-10 14:02:12,347 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 14:02:12,358 INFO L208 MainTranslator]: Completed translation [2022-02-10 14:02:12,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 02:02:12 WrapperNode [2022-02-10 14:02:12,359 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-10 14:02:12,360 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-10 14:02:12,360 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-10 14:02:12,360 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-10 14:02:12,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 02:02:12" (1/1) ... [2022-02-10 14:02:12,373 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 02:02:12" (1/1) ... [2022-02-10 14:02:12,389 INFO L137 Inliner]: procedures = 22, calls = 43, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 71 [2022-02-10 14:02:12,389 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-10 14:02:12,390 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-10 14:02:12,390 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-10 14:02:12,390 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-10 14:02:12,396 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 02:02:12" (1/1) ... [2022-02-10 14:02:12,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 02:02:12" (1/1) ... [2022-02-10 14:02:12,398 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 02:02:12" (1/1) ... [2022-02-10 14:02:12,398 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 02:02:12" (1/1) ... [2022-02-10 14:02:12,401 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 02:02:12" (1/1) ... [2022-02-10 14:02:12,403 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 02:02:12" (1/1) ... [2022-02-10 14:02:12,404 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 02:02:12" (1/1) ... [2022-02-10 14:02:12,405 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-10 14:02:12,406 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-10 14:02:12,406 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-10 14:02:12,406 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-10 14:02:12,416 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 02:02:12" (1/1) ... [2022-02-10 14:02:12,421 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 14:02:12,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 14:02:12,452 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) [2022-02-10 14:02:12,470 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 [2022-02-10 14:02:12,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-10 14:02:12,486 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-10 14:02:12,487 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-10 14:02:12,487 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-10 14:02:12,487 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-10 14:02:12,488 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-10 14:02:12,488 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-10 14:02:12,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-10 14:02:12,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-10 14:02:12,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-10 14:02:12,488 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-02-10 14:02:12,488 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-02-10 14:02:12,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-10 14:02:12,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-10 14:02:12,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-10 14:02:12,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-10 14:02:12,490 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-10 14:02:12,567 INFO L234 CfgBuilder]: Building ICFG [2022-02-10 14:02:12,569 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-10 14:02:12,780 INFO L275 CfgBuilder]: Performing block encoding [2022-02-10 14:02:12,801 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-10 14:02:12,801 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-10 14:02:12,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 02:02:12 BoogieIcfgContainer [2022-02-10 14:02:12,803 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-10 14:02:12,804 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-10 14:02:12,804 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-10 14:02:12,807 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-10 14:02:12,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.02 02:02:12" (1/3) ... [2022-02-10 14:02:12,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ea1fd30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 02:02:12, skipping insertion in model container [2022-02-10 14:02:12,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 02:02:12" (2/3) ... [2022-02-10 14:02:12,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ea1fd30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 02:02:12, skipping insertion in model container [2022-02-10 14:02:12,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 02:02:12" (3/3) ... [2022-02-10 14:02:12,809 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-misc-4.wvr.c [2022-02-10 14:02:12,812 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-10 14:02:12,812 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-10 14:02:12,812 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-10 14:02:12,812 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-10 14:02:12,850 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~lv_assert~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 14:02:12,850 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~lv_assert~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 14:02:12,851 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~lv_assert~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 14:02:12,851 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~lv_assert~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 14:02:12,851 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~lv_assert~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 14:02:12,859 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~lv_assert~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 14:02:12,859 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 14:02:12,860 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 14:02:12,860 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 14:02:12,860 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 14:02:12,860 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 14:02:12,861 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 14:02:12,861 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 14:02:12,861 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 14:02:12,861 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~lv_assert~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 14:02:12,861 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~lv_assert~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 14:02:12,862 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~lv_assert~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 14:02:12,862 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~lv_assert~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 14:02:12,862 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~lv_assert~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 14:02:12,862 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~lv_assert~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 14:02:12,863 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~lv_assert~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 14:02:12,863 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~lv_assert~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 14:02:12,863 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 14:02:12,863 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 14:02:12,863 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 14:02:12,863 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 14:02:12,864 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~lv_assert~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 14:02:12,864 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~lv_assert~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 14:02:12,865 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 14:02:12,865 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 14:02:12,865 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 14:02:12,865 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 14:02:12,868 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 14:02:12,869 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 14:02:12,869 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 14:02:12,869 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~lv_assert~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 14:02:12,870 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 14:02:12,870 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 14:02:12,870 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 14:02:12,870 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 14:02:12,870 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~lv_assert~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 14:02:12,870 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 14:02:12,874 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-02-10 14:02:12,932 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-10 14:02:12,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 14:02:12,935 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) [2022-02-10 14:02:12,936 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 [2022-02-10 14:02:12,956 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 14:02:12,961 INFO L339 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, mLazyFiniteAutomaton=true, 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, mLoopAccelerationTechnique=FAST_UPR [2022-02-10 14:02:12,961 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-02-10 14:02:13,233 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 125 transitions and produced 126 states. [2022-02-10 14:02:13,235 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 14:02:13,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 14:02:13,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1449306712, now seen corresponding path program 1 times [2022-02-10 14:02:13,247 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 14:02:13,247 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965270417] [2022-02-10 14:02:13,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 14:02:13,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 14:02:13,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 14:02:13,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 14:02:13,431 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 14:02:13,431 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965270417] [2022-02-10 14:02:13,432 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965270417] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 14:02:13,432 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 14:02:13,432 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-10 14:02:13,434 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080951358] [2022-02-10 14:02:13,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 14:02:13,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-10 14:02:13,440 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 14:02:13,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-10 14:02:13,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 14:02:13,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 14:02:13,462 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 14:02:13,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 37.0) internal successors, (74), 2 states have internal predecessors, (74), 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) [2022-02-10 14:02:13,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 14:02:13,625 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 125 transitions and produced 126 states. [2022-02-10 14:02:13,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 14:02:13,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-10 14:02:13,627 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 14:02:13,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 14:02:13,630 INFO L85 PathProgramCache]: Analyzing trace with hash -519419097, now seen corresponding path program 1 times [2022-02-10 14:02:13,630 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 14:02:13,630 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524978056] [2022-02-10 14:02:13,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 14:02:13,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 14:02:13,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 14:02:13,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 14:02:13,924 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 14:02:13,924 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524978056] [2022-02-10 14:02:13,925 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524978056] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 14:02:13,925 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 14:02:13,925 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-10 14:02:13,925 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316785749] [2022-02-10 14:02:13,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 14:02:13,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-10 14:02:13,926 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 14:02:13,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-10 14:02:13,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-10 14:02:13,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 14:02:13,927 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 14:02:13,927 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 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) [2022-02-10 14:02:13,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 14:02:13,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 14:02:16,060 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 329 transitions and produced 325 states. [2022-02-10 14:02:16,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 14:02:16,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-10 14:02:16,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-10 14:02:16,062 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 14:02:16,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 14:02:16,063 INFO L85 PathProgramCache]: Analyzing trace with hash 787804558, now seen corresponding path program 1 times [2022-02-10 14:02:16,063 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 14:02:16,063 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755398652] [2022-02-10 14:02:16,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 14:02:16,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 14:02:16,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 14:02:16,235 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2022-02-10 14:02:16,236 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 14:02:16,236 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755398652] [2022-02-10 14:02:16,236 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755398652] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 14:02:16,236 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 14:02:16,236 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-10 14:02:16,236 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976759524] [2022-02-10 14:02:16,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 14:02:16,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-10 14:02:16,237 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 14:02:16,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-10 14:02:16,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-10 14:02:16,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 14:02:16,238 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 14:02:16,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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) [2022-02-10 14:02:16,238 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 14:02:16,238 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-10 14:02:16,238 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 14:02:19,037 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 528 transitions and produced 524 states. [2022-02-10 14:02:19,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 14:02:19,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-10 14:02:19,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-10 14:02:19,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-10 14:02:19,039 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 14:02:19,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 14:02:19,040 INFO L85 PathProgramCache]: Analyzing trace with hash 2002194596, now seen corresponding path program 1 times [2022-02-10 14:02:19,040 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 14:02:19,040 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311432581] [2022-02-10 14:02:19,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 14:02:19,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 14:02:19,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 14:02:19,289 INFO L134 CoverageAnalysis]: Checked inductivity of 961 backedges. 595 proven. 9 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2022-02-10 14:02:19,289 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 14:02:19,289 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311432581] [2022-02-10 14:02:19,289 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311432581] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 14:02:19,289 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1109975713] [2022-02-10 14:02:19,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 14:02:19,290 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 14:02:19,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 14:02:19,303 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 14:02:19,327 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-10 14:02:19,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 14:02:19,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 6 conjunts are in the unsatisfiable core [2022-02-10 14:02:19,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 14:02:19,695 INFO L134 CoverageAnalysis]: Checked inductivity of 961 backedges. 500 proven. 104 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2022-02-10 14:02:19,696 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 14:02:19,955 INFO L134 CoverageAnalysis]: Checked inductivity of 961 backedges. 504 proven. 100 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2022-02-10 14:02:19,955 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1109975713] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 14:02:19,955 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 14:02:19,956 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2022-02-10 14:02:19,956 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455298693] [2022-02-10 14:02:19,956 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 14:02:19,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 14:02:19,957 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 14:02:19,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 14:02:19,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-02-10 14:02:19,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 14:02:19,957 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 14:02:19,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 7 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) [2022-02-10 14:02:19,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 14:02:19,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-10 14:02:19,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-10 14:02:19,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 14:02:35,887 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2447 transitions and produced 2372 states. [2022-02-10 14:02:35,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 14:02:35,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-10 14:02:35,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-10 14:02:35,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-10 14:02:35,910 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-10 14:02:36,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-02-10 14:02:36,105 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 14:02:36,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 14:02:36,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1526198430, now seen corresponding path program 1 times [2022-02-10 14:02:36,106 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 14:02:36,106 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528178669] [2022-02-10 14:02:36,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 14:02:36,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 14:02:36,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 14:02:37,045 INFO L134 CoverageAnalysis]: Checked inductivity of 22882 backedges. 11602 proven. 472 refuted. 0 times theorem prover too weak. 10808 trivial. 0 not checked. [2022-02-10 14:02:37,045 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 14:02:37,046 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528178669] [2022-02-10 14:02:37,046 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528178669] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 14:02:37,046 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [806551986] [2022-02-10 14:02:37,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 14:02:37,046 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 14:02:37,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 14:02:37,060 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 14:02:37,062 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-10 14:02:37,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 14:02:37,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 1099 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-10 14:02:37,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 14:02:38,075 INFO L134 CoverageAnalysis]: Checked inductivity of 22882 backedges. 11510 proven. 619 refuted. 0 times theorem prover too weak. 10753 trivial. 0 not checked. [2022-02-10 14:02:38,075 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 14:02:38,963 INFO L134 CoverageAnalysis]: Checked inductivity of 22882 backedges. 11602 proven. 472 refuted. 0 times theorem prover too weak. 10808 trivial. 0 not checked. [2022-02-10 14:02:38,964 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [806551986] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 14:02:38,965 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 14:02:38,965 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 4] total 7 [2022-02-10 14:02:38,966 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761670813] [2022-02-10 14:02:38,966 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 14:02:38,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 14:02:38,967 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 14:02:38,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 14:02:38,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-02-10 14:02:38,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 14:02:38,967 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 14:02:38,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 7 states have internal predecessors, (130), 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) [2022-02-10 14:02:38,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 14:02:38,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-10 14:02:38,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-10 14:02:38,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-02-10 14:02:38,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 14:02:57,903 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2864 transitions and produced 2818 states. [2022-02-10 14:02:57,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 14:02:57,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-10 14:02:57,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-10 14:02:57,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-10 14:02:57,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-10 14:02:57,929 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-10 14:02:58,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 14:02:58,127 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 14:02:58,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 14:02:58,128 INFO L85 PathProgramCache]: Analyzing trace with hash -304840619, now seen corresponding path program 1 times [2022-02-10 14:02:58,128 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 14:02:58,128 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117427281] [2022-02-10 14:02:58,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 14:02:58,130 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 14:02:58,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 14:02:59,424 INFO L134 CoverageAnalysis]: Checked inductivity of 33378 backedges. 14439 proven. 9945 refuted. 0 times theorem prover too weak. 8994 trivial. 0 not checked. [2022-02-10 14:02:59,425 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 14:02:59,425 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117427281] [2022-02-10 14:02:59,428 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117427281] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 14:02:59,428 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1131719624] [2022-02-10 14:02:59,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 14:02:59,428 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 14:02:59,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 14:02:59,430 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 14:02:59,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-10 14:02:59,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 14:02:59,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 1281 conjuncts, 143 conjunts are in the unsatisfiable core [2022-02-10 14:02:59,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 14:03:00,785 INFO L134 CoverageAnalysis]: Checked inductivity of 33378 backedges. 13743 proven. 10874 refuted. 0 times theorem prover too weak. 8761 trivial. 0 not checked. [2022-02-10 14:03:00,785 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 14:03:02,009 INFO L134 CoverageAnalysis]: Checked inductivity of 33378 backedges. 14491 proven. 10038 refuted. 0 times theorem prover too weak. 8849 trivial. 0 not checked. [2022-02-10 14:03:02,010 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1131719624] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 14:03:02,010 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 14:03:02,010 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 14, 13] total 27 [2022-02-10 14:03:02,011 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039485276] [2022-02-10 14:03:02,011 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 14:03:02,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-02-10 14:03:02,012 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 14:03:02,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-02-10 14:03:02,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=523, Unknown=0, NotChecked=0, Total=702 [2022-02-10 14:03:02,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 14:03:02,015 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 14:03:02,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 7.518518518518518) internal successors, (203), 27 states have internal predecessors, (203), 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) [2022-02-10 14:03:02,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 14:03:02,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-10 14:03:02,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-10 14:03:02,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-02-10 14:03:02,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-02-10 14:03:02,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.