/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-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/test-context1.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-03 23:24:24,732 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-03 23:24:24,733 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-03 23:24:24,779 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-03 23:24:24,780 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-03 23:24:24,783 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-03 23:24:24,786 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-03 23:24:24,792 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-03 23:24:24,794 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-03 23:24:24,799 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-03 23:24:24,800 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-03 23:24:24,801 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-03 23:24:24,801 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-03 23:24:24,802 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-03 23:24:24,803 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-03 23:24:24,803 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-03 23:24:24,804 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-03 23:24:24,805 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-03 23:24:24,806 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-03 23:24:24,807 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-03 23:24:24,808 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-03 23:24:24,812 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-03 23:24:24,812 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-03 23:24:24,813 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-03 23:24:24,815 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-03 23:24:24,815 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-03 23:24:24,815 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-03 23:24:24,816 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-03 23:24:24,816 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-03 23:24:24,817 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-03 23:24:24,817 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-03 23:24:24,818 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-03 23:24:24,818 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-03 23:24:24,819 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-03 23:24:24,821 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-03 23:24:24,822 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-03 23:24:24,822 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-03 23:24:24,822 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-03 23:24:24,823 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-03 23:24:24,823 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-03 23:24:24,824 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-03 23:24:24,825 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-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf [2022-03-03 23:24:24,862 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-03 23:24:24,862 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-03 23:24:24,863 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-03 23:24:24,863 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-03 23:24:24,864 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-03 23:24:24,864 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-03 23:24:24,864 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-03 23:24:24,864 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-03 23:24:24,864 INFO L138 SettingsManager]: * Use SBE=true [2022-03-03 23:24:24,865 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-03 23:24:24,865 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-03 23:24:24,866 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-03 23:24:24,866 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-03 23:24:24,866 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-03 23:24:24,866 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-03 23:24:24,866 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-03 23:24:24,866 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-03 23:24:24,866 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-03 23:24:24,866 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-03 23:24:24,867 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-03 23:24:24,867 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-03 23:24:24,867 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-03 23:24:24,867 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-03 23:24:24,867 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-03 23:24:24,867 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-03 23:24:24,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-03 23:24:24,867 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-03 23:24:24,868 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-03 23:24:24,868 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-03 23:24:24,868 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-03 23:24:24,868 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-03 23:24:24,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-03 23:24:24,868 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-03 23:24:24,869 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-03 23:24:24,869 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-03 23:24:24,869 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-03 23:24:24,869 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-03-03 23:24:24,869 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-03 23:24:24,869 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-03 23:24:25,115 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-03 23:24:25,137 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-03 23:24:25,139 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-03 23:24:25,140 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-03 23:24:25,141 INFO L275 PluginConnector]: CDTParser initialized [2022-03-03 23:24:25,141 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/test-context1.wvr.c [2022-03-03 23:24:25,206 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e70221ea/b74d7ba2e0064a6da43aefc5a5209e92/FLAG5549f33c5 [2022-03-03 23:24:25,600 INFO L306 CDTParser]: Found 1 translation units. [2022-03-03 23:24:25,601 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-context1.wvr.c [2022-03-03 23:24:25,612 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e70221ea/b74d7ba2e0064a6da43aefc5a5209e92/FLAG5549f33c5 [2022-03-03 23:24:25,993 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e70221ea/b74d7ba2e0064a6da43aefc5a5209e92 [2022-03-03 23:24:25,996 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-03 23:24:25,997 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-03 23:24:25,998 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-03 23:24:25,998 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-03 23:24:26,002 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-03 23:24:26,002 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 11:24:25" (1/1) ... [2022-03-03 23:24:26,003 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61c17c9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:24:26, skipping insertion in model container [2022-03-03 23:24:26,003 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 11:24:25" (1/1) ... [2022-03-03 23:24:26,008 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-03 23:24:26,022 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-03 23:24:26,266 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/test-context1.wvr.c[2433,2446] [2022-03-03 23:24:26,282 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-03 23:24:26,290 INFO L203 MainTranslator]: Completed pre-run [2022-03-03 23:24:26,323 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/test-context1.wvr.c[2433,2446] [2022-03-03 23:24:26,326 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-03 23:24:26,338 INFO L208 MainTranslator]: Completed translation [2022-03-03 23:24:26,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:24:26 WrapperNode [2022-03-03 23:24:26,338 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-03 23:24:26,339 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-03 23:24:26,339 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-03 23:24:26,340 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-03 23:24:26,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:24:26" (1/1) ... [2022-03-03 23:24:26,359 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:24:26" (1/1) ... [2022-03-03 23:24:26,390 INFO L137 Inliner]: procedures = 24, calls = 34, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 131 [2022-03-03 23:24:26,391 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-03 23:24:26,391 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-03 23:24:26,391 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-03 23:24:26,391 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-03 23:24:26,397 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:24:26" (1/1) ... [2022-03-03 23:24:26,397 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:24:26" (1/1) ... [2022-03-03 23:24:26,399 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:24:26" (1/1) ... [2022-03-03 23:24:26,399 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:24:26" (1/1) ... [2022-03-03 23:24:26,403 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:24:26" (1/1) ... [2022-03-03 23:24:26,405 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:24:26" (1/1) ... [2022-03-03 23:24:26,406 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:24:26" (1/1) ... [2022-03-03 23:24:26,408 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-03 23:24:26,409 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-03 23:24:26,409 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-03 23:24:26,409 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-03 23:24:26,410 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:24:26" (1/1) ... [2022-03-03 23:24:26,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-03 23:24:26,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 23:24:26,441 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) [2022-03-03 23:24:26,449 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 [2022-03-03 23:24:26,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-03 23:24:26,474 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-03 23:24:26,474 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-03 23:24:26,474 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-03 23:24:26,474 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-03 23:24:26,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-03 23:24:26,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-03 23:24:26,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-03 23:24:26,475 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-03 23:24:26,475 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-03 23:24:26,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-03 23:24:26,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-03 23:24:26,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-03 23:24:26,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-03 23:24:26,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-03 23:24:26,477 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-03 23:24:26,582 INFO L234 CfgBuilder]: Building ICFG [2022-03-03 23:24:26,583 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-03 23:24:26,821 INFO L275 CfgBuilder]: Performing block encoding [2022-03-03 23:24:26,909 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-03 23:24:26,909 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-03-03 23:24:26,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.03 11:24:26 BoogieIcfgContainer [2022-03-03 23:24:26,916 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-03 23:24:26,918 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-03 23:24:26,919 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-03 23:24:26,922 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-03 23:24:26,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 11:24:25" (1/3) ... [2022-03-03 23:24:26,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f72df71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 11:24:26, skipping insertion in model container [2022-03-03 23:24:26,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:24:26" (2/3) ... [2022-03-03 23:24:26,924 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f72df71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 11:24:26, skipping insertion in model container [2022-03-03 23:24:26,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.03 11:24:26" (3/3) ... [2022-03-03 23:24:26,925 INFO L111 eAbstractionObserver]: Analyzing ICFG test-context1.wvr.c [2022-03-03 23:24:26,930 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-03 23:24:26,930 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-03 23:24:26,930 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-03 23:24:26,931 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-03 23:24:26,981 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:26,982 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:26,983 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:26,983 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:26,983 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:26,983 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:26,983 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:26,983 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:26,984 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:26,984 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:26,984 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:26,984 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:26,985 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:26,985 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:26,985 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:26,985 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:26,986 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:26,986 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:26,986 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:26,987 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:26,989 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:26,990 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:26,991 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:26,991 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:26,991 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:26,991 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:26,992 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:26,992 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:26,992 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:26,993 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:26,993 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:26,993 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:26,993 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:26,994 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:26,994 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:26,994 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:26,994 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:26,995 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:26,995 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:26,995 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:26,995 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:26,995 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:27,000 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:27,000 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:27,001 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:27,001 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:27,001 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:27,001 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:27,001 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:27,003 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:27,003 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:27,003 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:27,004 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:27,004 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:27,004 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:27,004 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:27,004 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 23:24:27,012 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-03 23:24:27,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-03 23:24:27,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 23:24:27,051 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) [2022-03-03 23:24:27,052 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 [2022-03-03 23:24:27,080 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-03 23:24:27,088 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, mMcrOptimizeForkJoin=false, mMcrOverapproximateWrwc=false [2022-03-03 23:24:27,088 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-03 23:24:27,162 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 141 transitions and produced 142 states. [2022-03-03 23:24:27,164 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 23:24:27,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 23:24:27,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1806370259, now seen corresponding path program 1 times [2022-03-03 23:24:27,176 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 23:24:27,176 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933212158] [2022-03-03 23:24:27,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 23:24:27,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 23:24:27,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 23:24:27,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 23:24:27,344 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 23:24:27,344 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933212158] [2022-03-03 23:24:27,345 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933212158] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 23:24:27,345 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 23:24:27,346 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-03 23:24:27,347 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695816722] [2022-03-03 23:24:27,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 23:24:27,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-03 23:24:27,354 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 23:24:27,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-03 23:24:27,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-03 23:24:27,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:24:27,380 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-03 23:24:27,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 42.0) internal successors, (84), 2 states have internal predecessors, (84), 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) [2022-03-03 23:24:27,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:24:27,445 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 147 transitions and produced 148 states. [2022-03-03 23:24:27,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:24:27,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-03 23:24:27,446 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 23:24:27,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 23:24:27,446 INFO L85 PathProgramCache]: Analyzing trace with hash -485497018, now seen corresponding path program 1 times [2022-03-03 23:24:27,447 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 23:24:27,447 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499635374] [2022-03-03 23:24:27,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 23:24:27,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 23:24:27,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 23:24:27,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 23:24:27,634 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 23:24:27,634 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499635374] [2022-03-03 23:24:27,634 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499635374] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 23:24:27,634 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 23:24:27,634 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-03 23:24:27,635 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381987752] [2022-03-03 23:24:27,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 23:24:27,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-03 23:24:27,636 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 23:24:27,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-03 23:24:27,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-03 23:24:27,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:24:27,637 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-03 23:24:27,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 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) [2022-03-03 23:24:27,638 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:24:27,638 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:24:27,807 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 188 transitions and produced 180 states. [2022-03-03 23:24:27,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:24:27,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-03 23:24:27,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-03 23:24:27,808 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 23:24:27,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 23:24:27,809 INFO L85 PathProgramCache]: Analyzing trace with hash -561062654, now seen corresponding path program 1 times [2022-03-03 23:24:27,809 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 23:24:27,809 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249722397] [2022-03-03 23:24:27,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 23:24:27,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 23:24:27,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 23:24:27,925 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 23:24:27,925 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 23:24:27,926 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249722397] [2022-03-03 23:24:27,926 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249722397] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 23:24:27,926 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 23:24:27,926 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-03 23:24:27,926 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321654503] [2022-03-03 23:24:27,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 23:24:27,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 23:24:27,927 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 23:24:27,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 23:24:27,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 23:24:27,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:24:27,928 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-03 23:24:27,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2022-03-03 23:24:27,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:24:27,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-03 23:24:27,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:24:27,978 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 309 transitions and produced 259 states. [2022-03-03 23:24:27,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:24:27,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-03 23:24:27,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 23:24:27,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-03 23:24:27,979 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 23:24:27,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 23:24:27,980 INFO L85 PathProgramCache]: Analyzing trace with hash -212821246, now seen corresponding path program 1 times [2022-03-03 23:24:27,980 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 23:24:27,981 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290257975] [2022-03-03 23:24:27,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 23:24:27,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 23:24:28,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 23:24:28,152 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 23:24:28,152 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 23:24:28,152 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290257975] [2022-03-03 23:24:28,153 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290257975] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 23:24:28,153 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 23:24:28,153 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 23:24:28,153 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872064572] [2022-03-03 23:24:28,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 23:24:28,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 23:24:28,153 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 23:24:28,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 23:24:28,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 23:24:28,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:24:28,154 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-03 23:24:28,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 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) [2022-03-03 23:24:28,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:24:28,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-03 23:24:28,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-03 23:24:28,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:24:28,365 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1066 transitions and produced 620 states. [2022-03-03 23:24:28,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:24:28,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-03 23:24:28,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 23:24:28,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 23:24:28,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-03 23:24:28,366 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 23:24:28,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 23:24:28,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1803686423, now seen corresponding path program 1 times [2022-03-03 23:24:28,368 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 23:24:28,368 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574520035] [2022-03-03 23:24:28,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 23:24:28,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 23:24:28,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 23:24:28,770 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 23:24:28,771 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 23:24:28,771 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574520035] [2022-03-03 23:24:28,771 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574520035] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 23:24:28,771 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1393598684] [2022-03-03 23:24:28,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 23:24:28,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 23:24:28,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 23:24:28,773 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) [2022-03-03 23:24:28,774 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-03 23:24:28,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 23:24:28,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 26 conjunts are in the unsatisfiable core [2022-03-03 23:24:28,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 23:24:29,414 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-03-03 23:24:29,446 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 23:24:29,446 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 23:24:29,522 INFO L353 Elim1Store]: treesize reduction 14, result has 26.3 percent of original size [2022-03-03 23:24:29,525 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 13 [2022-03-03 23:24:29,660 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 23:24:29,664 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1393598684] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 23:24:29,664 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 23:24:29,664 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 7] total 15 [2022-03-03 23:24:29,665 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081352845] [2022-03-03 23:24:29,665 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 23:24:29,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-03-03 23:24:29,667 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 23:24:29,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-03-03 23:24:29,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2022-03-03 23:24:29,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:24:29,669 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-03 23:24:29,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 11.066666666666666) internal successors, (166), 15 states have internal predecessors, (166), 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) [2022-03-03 23:24:29,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:24:29,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-03 23:24:29,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-03 23:24:29,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-03 23:24:29,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:24:30,312 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1107 transitions and produced 652 states. [2022-03-03 23:24:30,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:24:30,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-03 23:24:30,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 23:24:30,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 23:24:30,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-03-03 23:24:30,337 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-03 23:24:30,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 23:24:30,528 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 23:24:30,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 23:24:30,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1012102289, now seen corresponding path program 2 times [2022-03-03 23:24:30,552 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 23:24:30,552 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619582379] [2022-03-03 23:24:30,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 23:24:30,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 23:24:30,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 23:24:30,620 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 23:24:30,621 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 23:24:30,621 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619582379] [2022-03-03 23:24:30,621 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619582379] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 23:24:30,621 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1022480914] [2022-03-03 23:24:30,622 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-03 23:24:30,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 23:24:30,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 23:24:30,623 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) [2022-03-03 23:24:30,640 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-03 23:24:30,719 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-03 23:24:30,719 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 23:24:30,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 4 conjunts are in the unsatisfiable core [2022-03-03 23:24:30,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 23:24:30,923 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 23:24:30,924 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 23:24:31,108 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 23:24:31,109 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1022480914] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 23:24:31,109 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 23:24:31,109 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 5 [2022-03-03 23:24:31,109 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97699787] [2022-03-03 23:24:31,110 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 23:24:31,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-03 23:24:31,110 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 23:24:31,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-03 23:24:31,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-03 23:24:31,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:24:31,111 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-03 23:24:31,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 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) [2022-03-03 23:24:31,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:24:31,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-03 23:24:31,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-03 23:24:31,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-03 23:24:31,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-03-03 23:24:31,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:24:31,703 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1335 transitions and produced 793 states. [2022-03-03 23:24:31,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:24:31,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-03 23:24:31,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 23:24:31,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 23:24:31,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-03-03 23:24:31,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-03 23:24:31,748 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-03 23:24:31,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 23:24:31,920 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 23:24:31,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 23:24:31,920 INFO L85 PathProgramCache]: Analyzing trace with hash 64819483, now seen corresponding path program 3 times [2022-03-03 23:24:31,920 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 23:24:31,920 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041285848] [2022-03-03 23:24:31,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 23:24:31,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 23:24:31,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 23:24:32,112 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-03-03 23:24:32,112 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 23:24:32,112 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041285848] [2022-03-03 23:24:32,112 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041285848] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 23:24:32,112 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [119553618] [2022-03-03 23:24:32,113 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-03 23:24:32,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 23:24:32,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 23:24:32,114 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) [2022-03-03 23:24:32,131 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-03 23:24:32,209 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-03-03 23:24:32,209 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 23:24:32,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 30 conjunts are in the unsatisfiable core [2022-03-03 23:24:32,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 23:24:32,645 INFO L353 Elim1Store]: treesize reduction 16, result has 15.8 percent of original size [2022-03-03 23:24:32,646 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 10 [2022-03-03 23:24:32,699 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-03 23:24:32,699 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 23:24:32,862 INFO L353 Elim1Store]: treesize reduction 8, result has 57.9 percent of original size [2022-03-03 23:24:32,862 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 19 [2022-03-03 23:24:33,172 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-03 23:24:33,172 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [119553618] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 23:24:33,172 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 23:24:33,172 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 12] total 27 [2022-03-03 23:24:33,173 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267654283] [2022-03-03 23:24:33,173 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 23:24:33,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-03-03 23:24:33,173 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 23:24:33,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-03-03 23:24:33,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=587, Unknown=0, NotChecked=0, Total=702 [2022-03-03 23:24:33,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:24:33,174 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-03 23:24:33,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 8.222222222222221) internal successors, (222), 27 states have internal predecessors, (222), 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) [2022-03-03 23:24:33,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:24:33,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-03 23:24:33,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-03 23:24:33,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-03 23:24:33,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-03-03 23:24:33,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-03 23:24:33,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:24:34,914 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2181 transitions and produced 1285 states. [2022-03-03 23:24:34,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:24:34,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-03 23:24:34,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 23:24:34,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 23:24:34,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-03-03 23:24:34,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-03 23:24:34,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-03 23:24:34,942 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-03 23:24:35,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 23:24:35,131 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 23:24:35,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 23:24:35,132 INFO L85 PathProgramCache]: Analyzing trace with hash 2084086221, now seen corresponding path program 4 times [2022-03-03 23:24:35,132 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 23:24:35,133 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801725200] [2022-03-03 23:24:35,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 23:24:35,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 23:24:35,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 23:24:35,286 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-03 23:24:35,287 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 23:24:35,287 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801725200] [2022-03-03 23:24:35,287 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801725200] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 23:24:35,287 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [536439628] [2022-03-03 23:24:35,287 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-03 23:24:35,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 23:24:35,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 23:24:35,293 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 23:24:35,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-03 23:24:35,372 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-03 23:24:35,372 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 23:24:35,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 11 conjunts are in the unsatisfiable core [2022-03-03 23:24:35,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 23:24:35,793 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-03-03 23:24:35,794 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 23:24:36,284 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-03-03 23:24:36,284 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [536439628] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 23:24:36,285 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 23:24:36,285 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 10] total 27 [2022-03-03 23:24:36,285 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407036224] [2022-03-03 23:24:36,285 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 23:24:36,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-03-03 23:24:36,285 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 23:24:36,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-03-03 23:24:36,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=566, Unknown=0, NotChecked=0, Total=702 [2022-03-03 23:24:36,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:24:36,286 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-03 23:24:36,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 8.481481481481481) internal successors, (229), 27 states have internal predecessors, (229), 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) [2022-03-03 23:24:36,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:24:36,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-03 23:24:36,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-03 23:24:36,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-03 23:24:36,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-03-03 23:24:36,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-03 23:24:36,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2022-03-03 23:24:36,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:24:37,464 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2937 transitions and produced 1400 states. [2022-03-03 23:24:37,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:24:37,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-03 23:24:37,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 23:24:37,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 23:24:37,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-03 23:24:37,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-03 23:24:37,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-03 23:24:37,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-03 23:24:37,481 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-03-03 23:24:37,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 23:24:37,667 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 23:24:37,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 23:24:37,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1212300237, now seen corresponding path program 5 times [2022-03-03 23:24:37,668 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 23:24:37,668 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439476739] [2022-03-03 23:24:37,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 23:24:37,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 23:24:37,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 23:24:37,922 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 23:24:37,922 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 23:24:37,922 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439476739] [2022-03-03 23:24:37,922 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439476739] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 23:24:37,922 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [858160572] [2022-03-03 23:24:37,923 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-03 23:24:37,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 23:24:37,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 23:24:37,924 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 23:24:37,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-03 23:24:38,009 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-03 23:24:38,009 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 23:24:38,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 43 conjunts are in the unsatisfiable core [2022-03-03 23:24:38,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 23:24:38,394 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-03-03 23:24:38,609 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-03 23:24:38,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 23:24:38,738 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-03-03 23:24:38,841 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-03-03 23:24:38,872 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 23:24:38,872 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 23:24:38,943 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_164 (Array Int Int))) (= 5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_164) c_~queue~0.base) (+ c_~queue~0.offset (* c_~front~0 4))))) is different from false [2022-03-03 23:24:39,054 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_164 (Array Int Int)) (v_ArrVal_163 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_163)) (.cse1 (* c_~front~0 4))) (or (not (= 5 (select (select .cse0 c_~queue~0.base) (+ (* c_~size~0 4) c_~queue~0.offset .cse1)))) (= 5 (select (select (store .cse0 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_164) c_~queue~0.base) (+ c_~queue~0.offset .cse1)))))) is different from false [2022-03-03 23:24:39,118 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_164 (Array Int Int)) (v_ArrVal_163 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_163)) (.cse1 (* c_~front~0 4))) (or (= 5 (select (select (store .cse0 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_164) |c_ULTIMATE.start_main_#t~ret9#1.base|) (+ .cse1 |c_ULTIMATE.start_main_#t~ret9#1.offset|))) (not (= 5 (select (select .cse0 |c_ULTIMATE.start_main_#t~ret9#1.base|) (+ (* c_~size~0 4) .cse1 |c_ULTIMATE.start_main_#t~ret9#1.offset|))))))) is different from false [2022-03-03 23:24:39,154 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_164 (Array Int Int)) (v_ArrVal_163 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_163)) (.cse1 (* c_~front~0 4))) (or (= (select (select (store .cse0 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_164) |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|) (+ .cse1 |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|)) 5) (not (= (select (select .cse0 |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|) (+ (* c_~size~0 4) .cse1 |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|)) 5))))) is different from false [2022-03-03 23:24:39,165 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_164 (Array Int Int)) (v_ArrVal_163 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_163)) (.cse1 (* c_~front~0 4))) (or (not (= (select (select .cse0 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|) (+ (* c_~size~0 4) .cse1 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)) 5)) (= 5 (select (select (store .cse0 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_164) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|) (+ .cse1 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)))))) is different from false [2022-03-03 23:24:39,230 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 23:24:39,231 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 60 treesize of output 48 [2022-03-03 23:24:39,240 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 23:24:39,240 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 184 treesize of output 176 [2022-03-03 23:24:39,249 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 23:24:39,250 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 93 treesize of output 91 [2022-03-03 23:24:39,257 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 94 [2022-03-03 23:24:39,636 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-03-03 23:24:39,636 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [858160572] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 23:24:39,636 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 23:24:39,637 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 18, 16] total 36 [2022-03-03 23:24:39,637 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213493553] [2022-03-03 23:24:39,637 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 23:24:39,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-03-03 23:24:39,637 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 23:24:39,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-03-03 23:24:39,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=794, Unknown=5, NotChecked=310, Total=1260 [2022-03-03 23:24:39,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:24:39,639 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-03 23:24:39,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 6.361111111111111) internal successors, (229), 36 states have internal predecessors, (229), 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) [2022-03-03 23:24:39,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:24:39,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-03 23:24:39,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-03 23:24:39,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-03 23:24:39,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-03 23:24:39,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-03 23:24:39,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2022-03-03 23:24:39,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-03-03 23:24:39,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:24:44,600 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 4793 transitions and produced 2303 states. [2022-03-03 23:24:44,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:24:44,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-03 23:24:44,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 23:24:44,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 23:24:44,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-03 23:24:44,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-03 23:24:44,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-03 23:24:44,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-03 23:24:44,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-03 23:24:44,618 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-03 23:24:44,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 23:24:44,802 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 23:24:44,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 23:24:44,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1019837402, now seen corresponding path program 6 times [2022-03-03 23:24:44,803 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 23:24:44,803 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850204005] [2022-03-03 23:24:44,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 23:24:44,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 23:24:44,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 23:24:45,085 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-03-03 23:24:45,085 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 23:24:45,085 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850204005] [2022-03-03 23:24:45,085 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850204005] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 23:24:45,085 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1862339617] [2022-03-03 23:24:45,086 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-03 23:24:45,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 23:24:45,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 23:24:45,087 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 23:24:45,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-03 23:24:45,228 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-03-03 23:24:45,228 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 23:24:45,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 24 conjunts are in the unsatisfiable core [2022-03-03 23:24:45,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 23:24:45,679 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-03 23:24:45,714 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-03-03 23:24:45,714 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 23:24:45,810 INFO L353 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-03-03 23:24:45,810 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 13 [2022-03-03 23:24:46,001 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-03-03 23:24:46,002 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1862339617] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 23:24:46,002 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 23:24:46,002 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11, 9] total 22 [2022-03-03 23:24:46,004 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999899826] [2022-03-03 23:24:46,004 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 23:24:46,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-03-03 23:24:46,007 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 23:24:46,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-03-03 23:24:46,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=394, Unknown=0, NotChecked=0, Total=462 [2022-03-03 23:24:46,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:24:46,008 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-03 23:24:46,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 10.136363636363637) internal successors, (223), 22 states have internal predecessors, (223), 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) [2022-03-03 23:24:46,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:24:46,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-03 23:24:46,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-03 23:24:46,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-03 23:24:46,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-03 23:24:46,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-03 23:24:46,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2022-03-03 23:24:46,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-03 23:24:46,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-03-03 23:24:46,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:24:49,651 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 4834 transitions and produced 2335 states. [2022-03-03 23:24:49,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:24:49,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-03 23:24:49,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 23:24:49,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 23:24:49,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-03 23:24:49,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-03 23:24:49,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-03 23:24:49,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-03 23:24:49,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-03 23:24:49,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-03 23:24:49,668 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-03-03 23:24:49,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 23:24:49,853 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 23:24:49,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 23:24:49,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1946643422, now seen corresponding path program 7 times [2022-03-03 23:24:49,853 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 23:24:49,854 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288076227] [2022-03-03 23:24:49,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 23:24:49,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 23:24:49,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 23:24:49,916 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-03-03 23:24:49,916 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 23:24:49,916 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288076227] [2022-03-03 23:24:49,916 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288076227] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 23:24:49,916 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [571532013] [2022-03-03 23:24:49,916 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-03 23:24:49,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 23:24:49,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 23:24:49,918 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 23:24:49,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-03 23:24:49,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 23:24:49,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 6 conjunts are in the unsatisfiable core [2022-03-03 23:24:49,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 23:24:50,162 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-03-03 23:24:50,162 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 23:24:50,321 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-03-03 23:24:50,321 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [571532013] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 23:24:50,322 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 23:24:50,322 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 6 [2022-03-03 23:24:50,322 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974113868] [2022-03-03 23:24:50,322 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 23:24:50,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-03 23:24:50,322 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 23:24:50,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-03 23:24:50,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-03-03 23:24:50,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:24:50,323 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-03 23:24:50,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.833333333333332) internal successors, (167), 6 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) [2022-03-03 23:24:50,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:24:50,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-03 23:24:50,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-03 23:24:50,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-03 23:24:50,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-03 23:24:50,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-03 23:24:50,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2022-03-03 23:24:50,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-03 23:24:50,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-03-03 23:24:50,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-03-03 23:24:50,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:24:53,692 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 5169 transitions and produced 2538 states. [2022-03-03 23:24:53,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:24:53,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-03 23:24:53,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 23:24:53,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 23:24:53,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-03 23:24:53,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-03 23:24:53,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-03 23:24:53,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-03 23:24:53,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-03 23:24:53,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-03 23:24:53,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-03 23:24:53,710 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-03-03 23:24:53,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-03-03 23:24:53,894 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 23:24:53,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 23:24:53,894 INFO L85 PathProgramCache]: Analyzing trace with hash -641584414, now seen corresponding path program 8 times [2022-03-03 23:24:53,894 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 23:24:53,895 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727822465] [2022-03-03 23:24:53,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 23:24:53,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 23:24:53,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 23:24:54,084 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-03-03 23:24:54,085 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 23:24:54,085 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727822465] [2022-03-03 23:24:54,085 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727822465] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 23:24:54,085 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1505179489] [2022-03-03 23:24:54,085 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-03 23:24:54,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 23:24:54,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 23:24:54,087 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 23:24:54,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-03 23:24:54,174 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-03 23:24:54,174 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 23:24:54,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 13 conjunts are in the unsatisfiable core [2022-03-03 23:24:54,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 23:24:54,807 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-03-03 23:24:54,808 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 23:24:55,359 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-03-03 23:24:55,359 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1505179489] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 23:24:55,359 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 23:24:55,360 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 37 [2022-03-03 23:24:55,360 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516050458] [2022-03-03 23:24:55,360 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 23:24:55,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-03-03 23:24:55,361 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 23:24:55,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-03-03 23:24:55,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=283, Invalid=1049, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 23:24:55,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:24:55,362 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-03 23:24:55,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 7.027027027027027) internal successors, (260), 37 states have internal predecessors, (260), 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) [2022-03-03 23:24:55,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:24:55,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-03 23:24:55,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-03 23:24:55,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-03 23:24:55,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-03 23:24:55,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-03 23:24:55,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2022-03-03 23:24:55,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-03 23:24:55,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-03-03 23:24:55,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-03-03 23:24:55,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-03-03 23:24:55,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:25:05,954 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 14284 transitions and produced 6215 states. [2022-03-03 23:25:05,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:25:05,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-03 23:25:05,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 23:25:05,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 23:25:05,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-03 23:25:05,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-03 23:25:05,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-03 23:25:05,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-03 23:25:05,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-03 23:25:05,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-03 23:25:05,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-03 23:25:05,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-03 23:25:05,974 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-03-03 23:25:06,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 23:25:06,162 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 23:25:06,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 23:25:06,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1990721562, now seen corresponding path program 9 times [2022-03-03 23:25:06,163 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 23:25:06,163 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467499955] [2022-03-03 23:25:06,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 23:25:06,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 23:25:06,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 23:25:06,478 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-03-03 23:25:06,478 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 23:25:06,478 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467499955] [2022-03-03 23:25:06,478 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467499955] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 23:25:06,478 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [240916354] [2022-03-03 23:25:06,479 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-03 23:25:06,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 23:25:06,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 23:25:06,480 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 23:25:06,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-03-03 23:25:06,571 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-03-03 23:25:06,571 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 23:25:06,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 51 conjunts are in the unsatisfiable core [2022-03-03 23:25:06,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 23:25:07,145 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-03-03 23:25:07,418 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-03 23:25:07,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 23:25:07,622 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 23 [2022-03-03 23:25:07,950 INFO L353 Elim1Store]: treesize reduction 16, result has 15.8 percent of original size [2022-03-03 23:25:07,951 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 10 [2022-03-03 23:25:07,981 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 23:25:07,982 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 23:25:09,824 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 23:25:09,824 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 60 treesize of output 48 [2022-03-03 23:25:09,835 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 23:25:09,835 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 106 treesize of output 106 [2022-03-03 23:25:09,843 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 48 [2022-03-03 23:25:09,855 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 23:25:09,856 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 58 [2022-03-03 23:25:11,586 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 23:25:11,586 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [240916354] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 23:25:11,586 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 23:25:11,587 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 27, 27] total 59 [2022-03-03 23:25:11,587 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484183383] [2022-03-03 23:25:11,587 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 23:25:11,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2022-03-03 23:25:11,587 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 23:25:11,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2022-03-03 23:25:11,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=327, Invalid=3084, Unknown=11, NotChecked=0, Total=3422 [2022-03-03 23:25:11,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:25:11,589 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-03 23:25:11,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 59 states have (on average 4.52542372881356) internal successors, (267), 59 states have internal predecessors, (267), 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) [2022-03-03 23:25:11,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:25:11,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-03 23:25:11,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-03 23:25:11,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-03 23:25:11,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-03 23:25:11,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-03 23:25:11,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2022-03-03 23:25:11,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-03 23:25:11,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-03-03 23:25:11,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-03-03 23:25:11,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-03-03 23:25:11,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-03-03 23:25:11,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:25:31,111 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 17132 transitions and produced 7577 states. [2022-03-03 23:25:31,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:25:31,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-03 23:25:31,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 23:25:31,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 23:25:31,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-03 23:25:31,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-03 23:25:31,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-03 23:25:31,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-03 23:25:31,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-03 23:25:31,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-03 23:25:31,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-03 23:25:31,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-03 23:25:31,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2022-03-03 23:25:31,128 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-03-03 23:25:31,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-03-03 23:25:31,313 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 23:25:31,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 23:25:31,313 INFO L85 PathProgramCache]: Analyzing trace with hash -383563337, now seen corresponding path program 10 times [2022-03-03 23:25:31,313 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 23:25:31,313 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38529286] [2022-03-03 23:25:31,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 23:25:31,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 23:25:31,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 23:25:31,691 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 23:25:31,691 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 23:25:31,691 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38529286] [2022-03-03 23:25:31,691 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38529286] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 23:25:31,691 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [980957371] [2022-03-03 23:25:31,692 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-03 23:25:31,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 23:25:31,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 23:25:31,693 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 23:25:31,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-03-03 23:25:31,783 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-03 23:25:31,783 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 23:25:31,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 44 conjunts are in the unsatisfiable core [2022-03-03 23:25:31,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 23:25:32,354 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-03-03 23:25:32,387 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-03 23:25:32,387 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 23:25:32,505 INFO L353 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-03-03 23:25:32,505 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 13 [2022-03-03 23:25:32,774 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-03 23:25:32,775 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [980957371] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 23:25:32,775 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 23:25:32,775 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 21, 11] total 31 [2022-03-03 23:25:32,775 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589733978] [2022-03-03 23:25:32,775 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 23:25:32,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-03-03 23:25:32,776 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 23:25:32,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-03-03 23:25:32,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=820, Unknown=0, NotChecked=0, Total=930 [2022-03-03 23:25:32,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:25:32,776 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-03 23:25:32,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 7.129032258064516) internal successors, (221), 31 states have internal predecessors, (221), 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) [2022-03-03 23:25:32,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:25:32,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-03 23:25:32,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-03 23:25:32,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-03 23:25:32,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-03 23:25:32,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-03 23:25:32,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2022-03-03 23:25:32,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-03 23:25:32,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-03-03 23:25:32,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-03-03 23:25:32,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-03-03 23:25:32,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2022-03-03 23:25:32,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 99 states. [2022-03-03 23:25:32,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:25:46,843 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 17225 transitions and produced 7641 states. [2022-03-03 23:25:46,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:25:46,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-03 23:25:46,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 23:25:46,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 23:25:46,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-03 23:25:46,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-03 23:25:46,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-03 23:25:46,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-03 23:25:46,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-03 23:25:46,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-03 23:25:46,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-03 23:25:46,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-03 23:25:46,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2022-03-03 23:25:46,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2022-03-03 23:25:46,862 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-03-03 23:25:47,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-03-03 23:25:47,045 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 23:25:47,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 23:25:47,045 INFO L85 PathProgramCache]: Analyzing trace with hash -396650255, now seen corresponding path program 11 times [2022-03-03 23:25:47,045 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 23:25:47,045 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447654951] [2022-03-03 23:25:47,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 23:25:47,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 23:25:47,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 23:25:47,107 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 22 proven. 12 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-03 23:25:47,107 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 23:25:47,108 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447654951] [2022-03-03 23:25:47,108 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447654951] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 23:25:47,108 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2061854054] [2022-03-03 23:25:47,108 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-03 23:25:47,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 23:25:47,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 23:25:47,112 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 23:25:47,113 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-03-03 23:25:47,226 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2022-03-03 23:25:47,226 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 23:25:47,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-03 23:25:47,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 23:25:47,439 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 22 proven. 12 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-03 23:25:47,440 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 23:25:47,616 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 22 proven. 12 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-03 23:25:47,616 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2061854054] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 23:25:47,616 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 23:25:47,616 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 7 [2022-03-03 23:25:47,616 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765458902] [2022-03-03 23:25:47,617 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 23:25:47,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-03 23:25:47,617 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 23:25:47,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-03 23:25:47,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-03-03 23:25:47,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:25:47,617 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-03 23:25:47,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 7 states have internal predecessors, (173), 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) [2022-03-03 23:25:47,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:25:47,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-03 23:25:47,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-03 23:25:47,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-03 23:25:47,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-03 23:25:47,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-03 23:25:47,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2022-03-03 23:25:47,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-03 23:25:47,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-03-03 23:25:47,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-03-03 23:25:47,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-03-03 23:25:47,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2022-03-03 23:25:47,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 100 states. [2022-03-03 23:25:47,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2022-03-03 23:25:47,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:26:00,015 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 17534 transitions and produced 7801 states. [2022-03-03 23:26:00,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:26:00,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-03 23:26:00,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 23:26:00,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 23:26:00,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-03 23:26:00,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-03 23:26:00,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-03 23:26:00,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-03 23:26:00,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-03 23:26:00,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-03 23:26:00,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-03 23:26:00,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-03 23:26:00,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2022-03-03 23:26:00,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2022-03-03 23:26:00,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-03 23:26:00,033 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-03-03 23:26:00,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-03-03 23:26:00,217 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 23:26:00,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 23:26:00,218 INFO L85 PathProgramCache]: Analyzing trace with hash 478875067, now seen corresponding path program 12 times [2022-03-03 23:26:00,218 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 23:26:00,218 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516525530] [2022-03-03 23:26:00,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 23:26:00,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 23:26:00,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 23:26:00,467 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 13 proven. 33 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-03-03 23:26:00,467 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 23:26:00,467 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516525530] [2022-03-03 23:26:00,468 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516525530] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 23:26:00,468 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [430079579] [2022-03-03 23:26:00,468 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-03 23:26:00,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 23:26:00,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 23:26:00,469 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 23:26:00,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-03-03 23:26:00,849 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-03-03 23:26:00,850 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 23:26:00,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 19 conjunts are in the unsatisfiable core [2022-03-03 23:26:00,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 23:26:01,402 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 22 proven. 24 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-03-03 23:26:01,403 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 23:26:01,990 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 13 proven. 33 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-03-03 23:26:01,990 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [430079579] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 23:26:01,990 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 23:26:01,991 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16, 16] total 44 [2022-03-03 23:26:01,991 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645887372] [2022-03-03 23:26:01,991 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 23:26:01,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-03-03 23:26:01,991 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 23:26:01,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-03-03 23:26:01,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=1567, Unknown=0, NotChecked=0, Total=1892 [2022-03-03 23:26:01,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:26:01,993 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-03 23:26:01,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 6.613636363636363) internal successors, (291), 44 states have internal predecessors, (291), 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) [2022-03-03 23:26:01,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-03 23:26:01,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-03 23:26:01,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-03 23:26:01,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-03 23:26:01,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-03 23:26:01,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-03 23:26:01,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2022-03-03 23:26:01,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-03 23:26:01,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-03-03 23:26:01,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-03-03 23:26:01,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-03-03 23:26:01,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2022-03-03 23:26:01,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 100 states. [2022-03-03 23:26:01,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2022-03-03 23:26:01,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-03 23:26:01,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.