/usr/bin/java -Xmx16000000000 -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-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-prod-cons.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 12:52:11,362 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 12:52:11,364 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 12:52:11,419 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-18 12:52:11,419 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-18 12:52:11,420 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-18 12:52:11,421 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-18 12:52:11,422 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-18 12:52:11,423 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-18 12:52:11,423 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-18 12:52:11,424 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-18 12:52:11,424 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-18 12:52:11,425 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 12:52:11,425 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 12:52:11,426 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 12:52:11,427 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 12:52:11,427 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 12:52:11,428 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 12:52:11,429 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 12:52:11,430 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 12:52:11,437 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 12:52:11,442 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 12:52:11,443 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 12:52:11,443 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 12:52:11,445 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-18 12:52:11,445 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-18 12:52:11,445 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-18 12:52:11,446 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-18 12:52:11,446 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-18 12:52:11,446 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-18 12:52:11,447 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-18 12:52:11,447 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-18 12:52:11,448 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-18 12:52:11,448 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-18 12:52:11,449 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-18 12:52:11,449 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-18 12:52:11,449 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-18 12:52:11,449 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-18 12:52:11,450 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 12:52:11,450 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 12:52:11,452 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 12:52:11,453 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-FA-NoLbe-Separate.epf [2022-01-18 12:52:11,472 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 12:52:11,472 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 12:52:11,472 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 12:52:11,472 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 12:52:11,472 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 12:52:11,473 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 12:52:11,473 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 12:52:11,473 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 12:52:11,473 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 12:52:11,473 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 12:52:11,473 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 12:52:11,473 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 12:52:11,474 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 12:52:11,474 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 12:52:11,474 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 12:52:11,474 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 12:52:11,474 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 12:52:11,474 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 12:52:11,474 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 12:52:11,474 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 12:52:11,474 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 12:52:11,474 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 12:52:11,474 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 12:52:11,475 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 12:52:11,475 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 12:52:11,475 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 12:52:11,475 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 12:52:11,475 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 12:52:11,475 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 12:52:11,475 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 12:52:11,475 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 12:52:11,475 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 12:52:11,476 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 12:52:11,476 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2022-01-18 12:52:11,476 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 12:52:11,646 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 12:52:11,660 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 12:52:11,662 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 12:52:11,662 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 12:52:11,663 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 12:52:11,663 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-prod-cons.wvr.c [2022-01-18 12:52:11,712 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/867869630/2b5ddd139d3f4c8a975185b3de9e2672/FLAG4df65f690 [2022-01-18 12:52:12,079 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 12:52:12,080 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-prod-cons.wvr.c [2022-01-18 12:52:12,089 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/867869630/2b5ddd139d3f4c8a975185b3de9e2672/FLAG4df65f690 [2022-01-18 12:52:12,495 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/867869630/2b5ddd139d3f4c8a975185b3de9e2672 [2022-01-18 12:52:12,500 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 12:52:12,501 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 12:52:12,511 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 12:52:12,511 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 12:52:12,513 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 12:52:12,514 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 12:52:12" (1/1) ... [2022-01-18 12:52:12,515 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d01b401 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:52:12, skipping insertion in model container [2022-01-18 12:52:12,515 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 12:52:12" (1/1) ... [2022-01-18 12:52:12,527 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 12:52:12,538 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 12:52:12,720 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/popl20-prod-cons.wvr.c[3056,3069] [2022-01-18 12:52:12,727 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 12:52:12,731 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 12:52:12,758 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/popl20-prod-cons.wvr.c[3056,3069] [2022-01-18 12:52:12,760 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 12:52:12,769 INFO L208 MainTranslator]: Completed translation [2022-01-18 12:52:12,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:52:12 WrapperNode [2022-01-18 12:52:12,769 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 12:52:12,770 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 12:52:12,770 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 12:52:12,770 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 12:52:12,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:52:12" (1/1) ... [2022-01-18 12:52:12,789 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:52:12" (1/1) ... [2022-01-18 12:52:12,808 INFO L137 Inliner]: procedures = 25, calls = 50, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 166 [2022-01-18 12:52:12,808 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 12:52:12,809 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 12:52:12,809 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 12:52:12,809 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 12:52:12,814 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:52:12" (1/1) ... [2022-01-18 12:52:12,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:52:12" (1/1) ... [2022-01-18 12:52:12,816 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:52:12" (1/1) ... [2022-01-18 12:52:12,816 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:52:12" (1/1) ... [2022-01-18 12:52:12,821 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:52:12" (1/1) ... [2022-01-18 12:52:12,824 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:52:12" (1/1) ... [2022-01-18 12:52:12,825 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:52:12" (1/1) ... [2022-01-18 12:52:12,826 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 12:52:12,827 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 12:52:12,827 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 12:52:12,827 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 12:52:12,839 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:52:12" (1/1) ... [2022-01-18 12:52:12,844 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 12:52:12,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 12:52:12,861 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) [2022-01-18 12:52:12,881 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 [2022-01-18 12:52:12,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 12:52:12,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 12:52:12,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 12:52:12,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-18 12:52:12,889 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-18 12:52:12,889 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-18 12:52:12,889 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-18 12:52:12,890 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-18 12:52:12,890 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-18 12:52:12,891 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-18 12:52:12,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 12:52:12,891 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-18 12:52:12,891 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-18 12:52:12,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-18 12:52:12,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 12:52:12,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 12:52:12,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 12:52:12,892 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 12:52:12,970 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 12:52:12,971 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 12:52:13,136 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 12:52:13,209 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 12:52:13,209 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-01-18 12:52:13,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 12:52:13 BoogieIcfgContainer [2022-01-18 12:52:13,211 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 12:52:13,213 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 12:52:13,213 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 12:52:13,220 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 12:52:13,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 12:52:12" (1/3) ... [2022-01-18 12:52:13,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30dee292 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 12:52:13, skipping insertion in model container [2022-01-18 12:52:13,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:52:12" (2/3) ... [2022-01-18 12:52:13,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30dee292 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 12:52:13, skipping insertion in model container [2022-01-18 12:52:13,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 12:52:13" (3/3) ... [2022-01-18 12:52:13,222 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-prod-cons.wvr.c [2022-01-18 12:52:13,225 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 12:52:13,226 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 12:52:13,226 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 12:52:13,226 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 12:52:13,269 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,270 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,270 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,270 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,270 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,271 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,271 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,271 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,271 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,271 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,271 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,271 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,272 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,272 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,272 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,272 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,272 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,272 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,273 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,273 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,282 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,283 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,283 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,283 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,283 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,284 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,284 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,284 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,284 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,284 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,284 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,284 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,284 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,284 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,285 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~temp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,285 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~temp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,285 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,285 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,285 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,286 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,286 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,286 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,286 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,286 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,286 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,286 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,287 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,287 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,287 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,287 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~temp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,291 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,292 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,292 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,292 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,292 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~temp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,292 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,293 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~temp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,293 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~temp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,293 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,293 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,293 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,293 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,294 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,294 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,296 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,296 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,296 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,296 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,297 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,297 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,297 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,297 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,297 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,297 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,297 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,298 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,298 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~temp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,298 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,298 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,298 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,298 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,298 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,298 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:52:13,301 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-01-18 12:52:13,329 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 12:52:13,333 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 12:52:13,333 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-18 12:52:13,341 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 155 places, 156 transitions, 336 flow [2022-01-18 12:52:13,473 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2453 states, 2452 states have (on average 3.480016313213703) internal successors, (8533), 2452 states have internal predecessors, (8533), 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) [2022-01-18 12:52:13,482 INFO L276 IsEmpty]: Start isEmpty. Operand has 2453 states, 2452 states have (on average 3.480016313213703) internal successors, (8533), 2452 states have internal predecessors, (8533), 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) [2022-01-18 12:52:13,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-01-18 12:52:13,516 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:52:13,517 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:52:13,517 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 12:52:13,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:52:13,524 INFO L85 PathProgramCache]: Analyzing trace with hash -2134475998, now seen corresponding path program 1 times [2022-01-18 12:52:13,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:52:13,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153883988] [2022-01-18 12:52:13,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:52:13,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:52:13,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:52:13,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 12:52:13,767 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:52:13,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153883988] [2022-01-18 12:52:13,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153883988] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:52:13,768 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:52:13,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 12:52:13,769 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556114326] [2022-01-18 12:52:13,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:52:13,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-18 12:52:13,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:52:13,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-18 12:52:13,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 12:52:13,819 INFO L87 Difference]: Start difference. First operand has 2453 states, 2452 states have (on average 3.480016313213703) internal successors, (8533), 2452 states have internal predecessors, (8533), 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) Second operand has 2 states, 2 states have (on average 56.0) internal successors, (112), 2 states have internal predecessors, (112), 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) [2022-01-18 12:52:13,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:52:13,907 INFO L93 Difference]: Finished difference Result 2453 states and 8070 transitions. [2022-01-18 12:52:13,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-18 12:52:13,909 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 56.0) internal successors, (112), 2 states have internal predecessors, (112), 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) Word has length 112 [2022-01-18 12:52:13,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:52:13,944 INFO L225 Difference]: With dead ends: 2453 [2022-01-18 12:52:13,944 INFO L226 Difference]: Without dead ends: 2449 [2022-01-18 12:52:13,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 12:52:13,948 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 12:52:13,949 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 127 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 12:52:13,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2449 states. [2022-01-18 12:52:14,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2449 to 2449. [2022-01-18 12:52:14,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2449 states, 2448 states have (on average 3.2949346405228757) internal successors, (8066), 2448 states have internal predecessors, (8066), 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) [2022-01-18 12:52:14,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2449 states to 2449 states and 8066 transitions. [2022-01-18 12:52:14,071 INFO L78 Accepts]: Start accepts. Automaton has 2449 states and 8066 transitions. Word has length 112 [2022-01-18 12:52:14,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:52:14,071 INFO L470 AbstractCegarLoop]: Abstraction has 2449 states and 8066 transitions. [2022-01-18 12:52:14,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 56.0) internal successors, (112), 2 states have internal predecessors, (112), 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) [2022-01-18 12:52:14,072 INFO L276 IsEmpty]: Start isEmpty. Operand 2449 states and 8066 transitions. [2022-01-18 12:52:14,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-01-18 12:52:14,079 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:52:14,079 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:52:14,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 12:52:14,080 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 12:52:14,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:52:14,082 INFO L85 PathProgramCache]: Analyzing trace with hash -198236285, now seen corresponding path program 1 times [2022-01-18 12:52:14,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:52:14,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234936264] [2022-01-18 12:52:14,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:52:14,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:52:14,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:52:14,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 12:52:14,404 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:52:14,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234936264] [2022-01-18 12:52:14,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234936264] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:52:14,405 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:52:14,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 12:52:14,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893297389] [2022-01-18 12:52:14,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:52:14,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 12:52:14,407 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:52:14,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 12:52:14,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-18 12:52:14,408 INFO L87 Difference]: Start difference. First operand 2449 states and 8066 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 8 states have internal predecessors, (112), 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) [2022-01-18 12:52:14,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:52:14,695 INFO L93 Difference]: Finished difference Result 3433 states and 11469 transitions. [2022-01-18 12:52:14,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 12:52:14,695 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 8 states have internal predecessors, (112), 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) Word has length 112 [2022-01-18 12:52:14,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:52:14,705 INFO L225 Difference]: With dead ends: 3433 [2022-01-18 12:52:14,705 INFO L226 Difference]: Without dead ends: 2164 [2022-01-18 12:52:14,708 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2022-01-18 12:52:14,709 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 259 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:52:14,709 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [259 Valid, 610 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:52:14,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2164 states. [2022-01-18 12:52:14,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2164 to 2164. [2022-01-18 12:52:14,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2164 states, 2163 states have (on average 3.1673601479426723) internal successors, (6851), 2163 states have internal predecessors, (6851), 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) [2022-01-18 12:52:14,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2164 states to 2164 states and 6851 transitions. [2022-01-18 12:52:14,755 INFO L78 Accepts]: Start accepts. Automaton has 2164 states and 6851 transitions. Word has length 112 [2022-01-18 12:52:14,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:52:14,757 INFO L470 AbstractCegarLoop]: Abstraction has 2164 states and 6851 transitions. [2022-01-18 12:52:14,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 8 states have internal predecessors, (112), 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) [2022-01-18 12:52:14,757 INFO L276 IsEmpty]: Start isEmpty. Operand 2164 states and 6851 transitions. [2022-01-18 12:52:14,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-01-18 12:52:14,765 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:52:14,766 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:52:14,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 12:52:14,766 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 12:52:14,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:52:14,767 INFO L85 PathProgramCache]: Analyzing trace with hash -50241742, now seen corresponding path program 1 times [2022-01-18 12:52:14,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:52:14,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813761596] [2022-01-18 12:52:14,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:52:14,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:52:14,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:52:14,853 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 12:52:14,854 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:52:14,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813761596] [2022-01-18 12:52:14,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813761596] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 12:52:14,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1027080401] [2022-01-18 12:52:14,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:52:14,855 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:52:14,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 12:52:14,856 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 12:52:14,896 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-18 12:52:14,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:52:14,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-18 12:52:14,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 12:52:15,178 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 12:52:15,178 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 12:52:15,313 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 12:52:15,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1027080401] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 12:52:15,313 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 12:52:15,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 5] total 8 [2022-01-18 12:52:15,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25517787] [2022-01-18 12:52:15,314 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 12:52:15,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 12:52:15,314 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:52:15,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 12:52:15,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-18 12:52:15,315 INFO L87 Difference]: Start difference. First operand 2164 states and 6851 transitions. Second operand has 8 states, 8 states have (on average 23.25) internal successors, (186), 8 states have internal predecessors, (186), 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) [2022-01-18 12:52:15,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:52:15,389 INFO L93 Difference]: Finished difference Result 2869 states and 9286 transitions. [2022-01-18 12:52:15,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 12:52:15,390 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 23.25) internal successors, (186), 8 states have internal predecessors, (186), 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) Word has length 116 [2022-01-18 12:52:15,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:52:15,400 INFO L225 Difference]: With dead ends: 2869 [2022-01-18 12:52:15,400 INFO L226 Difference]: Without dead ends: 2305 [2022-01-18 12:52:15,400 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 228 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-01-18 12:52:15,401 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 256 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 12:52:15,401 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [256 Valid, 495 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 12:52:15,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2305 states. [2022-01-18 12:52:15,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2305 to 2305. [2022-01-18 12:52:15,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2305 states, 2304 states have (on average 3.1236979166666665) internal successors, (7197), 2304 states have internal predecessors, (7197), 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) [2022-01-18 12:52:15,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2305 states to 2305 states and 7197 transitions. [2022-01-18 12:52:15,446 INFO L78 Accepts]: Start accepts. Automaton has 2305 states and 7197 transitions. Word has length 116 [2022-01-18 12:52:15,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:52:15,446 INFO L470 AbstractCegarLoop]: Abstraction has 2305 states and 7197 transitions. [2022-01-18 12:52:15,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 23.25) internal successors, (186), 8 states have internal predecessors, (186), 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) [2022-01-18 12:52:15,447 INFO L276 IsEmpty]: Start isEmpty. Operand 2305 states and 7197 transitions. [2022-01-18 12:52:15,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-01-18 12:52:15,452 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:52:15,452 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:52:15,480 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-18 12:52:15,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:52:15,668 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 12:52:15,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:52:15,668 INFO L85 PathProgramCache]: Analyzing trace with hash 102358740, now seen corresponding path program 2 times [2022-01-18 12:52:15,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:52:15,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348290502] [2022-01-18 12:52:15,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:52:15,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:52:15,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:52:15,788 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 12:52:15,789 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:52:15,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348290502] [2022-01-18 12:52:15,789 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348290502] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:52:15,789 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:52:15,789 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 12:52:15,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518667012] [2022-01-18 12:52:15,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:52:15,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 12:52:15,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:52:15,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 12:52:15,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 12:52:15,790 INFO L87 Difference]: Start difference. First operand 2305 states and 7197 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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) [2022-01-18 12:52:15,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:52:15,814 INFO L93 Difference]: Finished difference Result 2493 states and 7603 transitions. [2022-01-18 12:52:15,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 12:52:15,815 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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) Word has length 116 [2022-01-18 12:52:15,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:52:15,824 INFO L225 Difference]: With dead ends: 2493 [2022-01-18 12:52:15,824 INFO L226 Difference]: Without dead ends: 2343 [2022-01-18 12:52:15,824 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 12:52:15,825 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 25 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 12:52:15,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 180 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 12:52:15,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2343 states. [2022-01-18 12:52:15,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2343 to 2343. [2022-01-18 12:52:15,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2343 states, 2342 states have (on average 3.066609735269001) internal successors, (7182), 2342 states have internal predecessors, (7182), 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) [2022-01-18 12:52:15,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2343 states to 2343 states and 7182 transitions. [2022-01-18 12:52:15,866 INFO L78 Accepts]: Start accepts. Automaton has 2343 states and 7182 transitions. Word has length 116 [2022-01-18 12:52:15,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:52:15,866 INFO L470 AbstractCegarLoop]: Abstraction has 2343 states and 7182 transitions. [2022-01-18 12:52:15,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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) [2022-01-18 12:52:15,866 INFO L276 IsEmpty]: Start isEmpty. Operand 2343 states and 7182 transitions. [2022-01-18 12:52:15,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-01-18 12:52:15,895 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:52:15,895 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:52:15,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 12:52:15,895 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 12:52:15,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:52:15,896 INFO L85 PathProgramCache]: Analyzing trace with hash 743330443, now seen corresponding path program 1 times [2022-01-18 12:52:15,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:52:15,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428575931] [2022-01-18 12:52:15,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:52:15,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:52:15,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:52:15,941 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 12:52:15,941 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:52:15,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428575931] [2022-01-18 12:52:15,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428575931] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:52:15,941 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:52:15,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 12:52:15,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596136905] [2022-01-18 12:52:15,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:52:15,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 12:52:15,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:52:15,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 12:52:15,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-18 12:52:15,942 INFO L87 Difference]: Start difference. First operand 2343 states and 7182 transitions. Second operand has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 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) [2022-01-18 12:52:15,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:52:15,998 INFO L93 Difference]: Finished difference Result 2594 states and 7748 transitions. [2022-01-18 12:52:15,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 12:52:15,998 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 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) Word has length 123 [2022-01-18 12:52:15,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:52:16,006 INFO L225 Difference]: With dead ends: 2594 [2022-01-18 12:52:16,006 INFO L226 Difference]: Without dead ends: 2349 [2022-01-18 12:52:16,007 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-01-18 12:52:16,007 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 334 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 12:52:16,007 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [334 Valid, 355 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 12:52:16,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2349 states. [2022-01-18 12:52:16,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2349 to 2344. [2022-01-18 12:52:16,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2344 states, 2343 states have (on average 3.0657276995305165) internal successors, (7183), 2343 states have internal predecessors, (7183), 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) [2022-01-18 12:52:16,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2344 states to 2344 states and 7183 transitions. [2022-01-18 12:52:16,046 INFO L78 Accepts]: Start accepts. Automaton has 2344 states and 7183 transitions. Word has length 123 [2022-01-18 12:52:16,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:52:16,046 INFO L470 AbstractCegarLoop]: Abstraction has 2344 states and 7183 transitions. [2022-01-18 12:52:16,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 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) [2022-01-18 12:52:16,046 INFO L276 IsEmpty]: Start isEmpty. Operand 2344 states and 7183 transitions. [2022-01-18 12:52:16,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 12:52:16,050 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:52:16,050 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:52:16,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-18 12:52:16,051 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 12:52:16,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:52:16,051 INFO L85 PathProgramCache]: Analyzing trace with hash -129850157, now seen corresponding path program 1 times [2022-01-18 12:52:16,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:52:16,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013477001] [2022-01-18 12:52:16,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:52:16,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:52:16,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:52:16,845 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 12:52:16,846 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:52:16,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013477001] [2022-01-18 12:52:16,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013477001] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 12:52:16,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [805779479] [2022-01-18 12:52:16,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:52:16,846 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:52:16,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 12:52:16,850 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) [2022-01-18 12:52:16,851 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-18 12:52:16,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:52:16,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 51 conjunts are in the unsatisfiable core [2022-01-18 12:52:16,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 12:52:17,724 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 [2022-01-18 12:52:18,188 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 [2022-01-18 12:52:18,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 12:52:18,621 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 [2022-01-18 12:52:18,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 12:52:18,728 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 [2022-01-18 12:52:18,870 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 23 treesize of output 7 [2022-01-18 12:52:19,002 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 12:52:19,002 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 12:52:19,156 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_121 (Array Int Int))) (<= (+ c_~d~0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_121) c_~queue~0.base) (+ c_~queue~0.offset (* c_~front~0 4)))) c_~W~0)) is different from false [2022-01-18 12:52:19,189 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_120 (Array Int Int)) (v_ArrVal_121 (Array Int Int))) (<= (+ c_~d~0 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_120) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_121) c_~queue~0.base) (+ c_~queue~0.offset (* c_~front~0 4)))) c_~W~0)) is different from false [2022-01-18 12:52:20,441 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 12:52:20,442 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 62 treesize of output 50 [2022-01-18 12:52:20,451 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 12:52:20,451 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 362 treesize of output 354 [2022-01-18 12:52:20,457 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 314 treesize of output 266 [2022-01-18 12:52:20,466 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 12:52:20,467 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 290 treesize of output 288 [2022-01-18 12:52:20,472 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 254 treesize of output 230 [2022-01-18 12:52:21,865 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-01-18 12:52:21,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [805779479] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 12:52:21,865 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 12:52:21,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 31, 31] total 81 [2022-01-18 12:52:21,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682012592] [2022-01-18 12:52:21,866 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 12:52:21,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 81 states [2022-01-18 12:52:21,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:52:21,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2022-01-18 12:52:21,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=494, Invalid=5647, Unknown=29, NotChecked=310, Total=6480 [2022-01-18 12:52:21,868 INFO L87 Difference]: Start difference. First operand 2344 states and 7183 transitions. Second operand has 81 states, 81 states have (on average 4.049382716049383) internal successors, (328), 81 states have internal predecessors, (328), 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) [2022-01-18 12:52:30,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:52:30,020 INFO L93 Difference]: Finished difference Result 12074 states and 38046 transitions. [2022-01-18 12:52:30,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-01-18 12:52:30,021 INFO L78 Accepts]: Start accepts. Automaton has has 81 states, 81 states have (on average 4.049382716049383) internal successors, (328), 81 states have internal predecessors, (328), 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) Word has length 130 [2022-01-18 12:52:30,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:52:30,054 INFO L225 Difference]: With dead ends: 12074 [2022-01-18 12:52:30,054 INFO L226 Difference]: Without dead ends: 8978 [2022-01-18 12:52:30,058 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 218 SyntacticMatches, 21 SemanticMatches, 149 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 8025 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=2810, Invalid=19178, Unknown=72, NotChecked=590, Total=22650 [2022-01-18 12:52:30,059 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 4924 mSDsluCounter, 8027 mSDsCounter, 0 mSdLazyCounter, 3050 mSolverCounterSat, 285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4924 SdHoareTripleChecker+Valid, 7188 SdHoareTripleChecker+Invalid, 6645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 3050 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3310 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-01-18 12:52:30,059 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4924 Valid, 7188 Invalid, 6645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 3050 Invalid, 0 Unknown, 3310 Unchecked, 1.5s Time] [2022-01-18 12:52:30,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8978 states. [2022-01-18 12:52:30,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8978 to 3351. [2022-01-18 12:52:30,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3351 states, 3350 states have (on average 2.9692537313432834) internal successors, (9947), 3350 states have internal predecessors, (9947), 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) [2022-01-18 12:52:30,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3351 states to 3351 states and 9947 transitions. [2022-01-18 12:52:30,157 INFO L78 Accepts]: Start accepts. Automaton has 3351 states and 9947 transitions. Word has length 130 [2022-01-18 12:52:30,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:52:30,157 INFO L470 AbstractCegarLoop]: Abstraction has 3351 states and 9947 transitions. [2022-01-18 12:52:30,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 81 states, 81 states have (on average 4.049382716049383) internal successors, (328), 81 states have internal predecessors, (328), 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) [2022-01-18 12:52:30,157 INFO L276 IsEmpty]: Start isEmpty. Operand 3351 states and 9947 transitions. [2022-01-18 12:52:30,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 12:52:30,163 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:52:30,163 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:52:30,197 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-01-18 12:52:30,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-01-18 12:52:30,380 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 12:52:30,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:52:30,380 INFO L85 PathProgramCache]: Analyzing trace with hash 526565270, now seen corresponding path program 2 times [2022-01-18 12:52:30,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:52:30,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174000309] [2022-01-18 12:52:30,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:52:30,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:52:30,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:52:30,451 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 12:52:30,452 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:52:30,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174000309] [2022-01-18 12:52:30,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174000309] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 12:52:30,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1527327256] [2022-01-18 12:52:30,452 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 12:52:30,452 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:52:30,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 12:52:30,453 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) [2022-01-18 12:52:30,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-18 12:52:30,534 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 12:52:30,534 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 12:52:30,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-18 12:52:30,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 12:52:30,703 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 12:52:30,703 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 12:52:31,026 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 12:52:31,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1527327256] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 12:52:31,027 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 12:52:31,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 5] total 7 [2022-01-18 12:52:31,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443133010] [2022-01-18 12:52:31,027 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 12:52:31,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 12:52:31,027 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:52:31,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 12:52:31,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-18 12:52:31,028 INFO L87 Difference]: Start difference. First operand 3351 states and 9947 transitions. Second operand has 7 states, 7 states have (on average 31.0) internal successors, (217), 7 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:52:31,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:52:31,085 INFO L93 Difference]: Finished difference Result 8023 states and 24433 transitions. [2022-01-18 12:52:31,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 12:52:31,085 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 31.0) internal successors, (217), 7 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-01-18 12:52:31,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:52:31,106 INFO L225 Difference]: With dead ends: 8023 [2022-01-18 12:52:31,107 INFO L226 Difference]: Without dead ends: 7585 [2022-01-18 12:52:31,107 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-01-18 12:52:31,108 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 328 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 12:52:31,108 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [328 Valid, 316 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 12:52:31,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7585 states. [2022-01-18 12:52:31,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7585 to 5663. [2022-01-18 12:52:31,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5663 states, 5662 states have (on average 2.978099611444719) internal successors, (16862), 5662 states have internal predecessors, (16862), 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) [2022-01-18 12:52:31,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5663 states to 5663 states and 16862 transitions. [2022-01-18 12:52:31,243 INFO L78 Accepts]: Start accepts. Automaton has 5663 states and 16862 transitions. Word has length 134 [2022-01-18 12:52:31,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:52:31,243 INFO L470 AbstractCegarLoop]: Abstraction has 5663 states and 16862 transitions. [2022-01-18 12:52:31,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 31.0) internal successors, (217), 7 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:52:31,244 INFO L276 IsEmpty]: Start isEmpty. Operand 5663 states and 16862 transitions. [2022-01-18 12:52:31,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 12:52:31,263 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:52:31,264 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:52:31,291 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-18 12:52:31,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:52:31,482 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 12:52:31,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:52:31,483 INFO L85 PathProgramCache]: Analyzing trace with hash -2146157939, now seen corresponding path program 3 times [2022-01-18 12:52:31,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:52:31,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365109848] [2022-01-18 12:52:31,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:52:31,483 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:52:31,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:52:32,708 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 12:52:32,708 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:52:32,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365109848] [2022-01-18 12:52:32,708 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365109848] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 12:52:32,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1942189085] [2022-01-18 12:52:32,708 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-18 12:52:32,709 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:52:32,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 12:52:32,739 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) [2022-01-18 12:52:32,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-18 12:52:32,835 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-01-18 12:52:32,835 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 12:52:32,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 35 conjunts are in the unsatisfiable core [2022-01-18 12:52:32,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 12:52:33,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 12:52:33,793 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 [2022-01-18 12:52:33,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 12:52:33,870 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 [2022-01-18 12:52:33,948 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 23 treesize of output 7 [2022-01-18 12:52:34,056 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 12:52:34,056 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 12:52:34,172 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_191 (Array Int Int))) (<= (+ c_~d~0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_191) c_~queue~0.base) (+ c_~queue~0.offset (* c_~front~0 4)))) c_~W~0)) is different from false [2022-01-18 12:52:34,208 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_191 (Array Int Int)) (v_ArrVal_190 (Array Int Int))) (<= (+ (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_190) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_191) c_~queue~0.base) (+ c_~queue~0.offset (* c_~front~0 4))) c_~d~0) c_~W~0)) is different from false [2022-01-18 12:52:34,239 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 12:52:34,239 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 174 treesize of output 166 [2022-01-18 12:52:34,242 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 146 treesize of output 122 [2022-01-18 12:52:34,245 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 122 treesize of output 110 [2022-01-18 12:52:35,201 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 1 not checked. [2022-01-18 12:52:35,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1942189085] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 12:52:35,201 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 12:52:35,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 23, 23] total 66 [2022-01-18 12:52:35,202 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415116432] [2022-01-18 12:52:35,202 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 12:52:35,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-01-18 12:52:35,202 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:52:35,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-01-18 12:52:35,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=326, Invalid=3712, Unknown=2, NotChecked=250, Total=4290 [2022-01-18 12:52:35,204 INFO L87 Difference]: Start difference. First operand 5663 states and 16862 transitions. Second operand has 66 states, 66 states have (on average 5.0606060606060606) internal successors, (334), 66 states have internal predecessors, (334), 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) [2022-01-18 12:52:42,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:52:42,358 INFO L93 Difference]: Finished difference Result 15626 states and 47003 transitions. [2022-01-18 12:52:42,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-01-18 12:52:42,359 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 66 states have (on average 5.0606060606060606) internal successors, (334), 66 states have internal predecessors, (334), 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) Word has length 137 [2022-01-18 12:52:42,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:52:42,392 INFO L225 Difference]: With dead ends: 15626 [2022-01-18 12:52:42,392 INFO L226 Difference]: Without dead ends: 12635 [2022-01-18 12:52:42,396 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 238 SyntacticMatches, 8 SemanticMatches, 135 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 6005 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=2342, Invalid=15754, Unknown=2, NotChecked=534, Total=18632 [2022-01-18 12:52:42,396 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 2793 mSDsluCounter, 8060 mSDsCounter, 0 mSdLazyCounter, 2854 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2793 SdHoareTripleChecker+Valid, 7428 SdHoareTripleChecker+Invalid, 4768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 2854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1818 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-18 12:52:42,396 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2793 Valid, 7428 Invalid, 4768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 2854 Invalid, 0 Unknown, 1818 Unchecked, 1.4s Time] [2022-01-18 12:52:42,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12635 states. [2022-01-18 12:52:42,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12635 to 4902. [2022-01-18 12:52:42,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4902 states, 4901 states have (on average 3.0246888390124465) internal successors, (14824), 4901 states have internal predecessors, (14824), 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) [2022-01-18 12:52:42,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4902 states to 4902 states and 14824 transitions. [2022-01-18 12:52:42,526 INFO L78 Accepts]: Start accepts. Automaton has 4902 states and 14824 transitions. Word has length 137 [2022-01-18 12:52:42,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:52:42,526 INFO L470 AbstractCegarLoop]: Abstraction has 4902 states and 14824 transitions. [2022-01-18 12:52:42,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 5.0606060606060606) internal successors, (334), 66 states have internal predecessors, (334), 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) [2022-01-18 12:52:42,526 INFO L276 IsEmpty]: Start isEmpty. Operand 4902 states and 14824 transitions. [2022-01-18 12:52:42,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-18 12:52:42,534 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:52:42,534 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:52:42,565 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-18 12:52:42,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:52:42,766 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 12:52:42,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:52:42,766 INFO L85 PathProgramCache]: Analyzing trace with hash -385964561, now seen corresponding path program 4 times [2022-01-18 12:52:42,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:52:42,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691642467] [2022-01-18 12:52:42,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:52:42,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:52:42,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:52:42,832 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-01-18 12:52:42,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:52:42,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691642467] [2022-01-18 12:52:42,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691642467] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 12:52:42,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [985260257] [2022-01-18 12:52:42,832 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-18 12:52:42,832 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:52:42,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 12:52:42,848 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) [2022-01-18 12:52:42,882 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-18 12:52:42,943 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-18 12:52:42,943 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 12:52:42,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 9 conjunts are in the unsatisfiable core [2022-01-18 12:52:42,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 12:52:43,076 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-01-18 12:52:43,077 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 12:52:43,231 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-01-18 12:52:43,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [985260257] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 12:52:43,232 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 12:52:43,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-01-18 12:52:43,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027248208] [2022-01-18 12:52:43,232 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 12:52:43,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 12:52:43,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:52:43,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 12:52:43,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2022-01-18 12:52:43,233 INFO L87 Difference]: Start difference. First operand 4902 states and 14824 transitions. Second operand has 19 states, 19 states have (on average 10.0) internal successors, (190), 19 states have internal predecessors, (190), 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) [2022-01-18 12:52:43,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:52:43,343 INFO L93 Difference]: Finished difference Result 5761 states and 16994 transitions. [2022-01-18 12:52:43,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 12:52:43,343 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 10.0) internal successors, (190), 19 states have internal predecessors, (190), 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) Word has length 141 [2022-01-18 12:52:43,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:52:43,352 INFO L225 Difference]: With dead ends: 5761 [2022-01-18 12:52:43,352 INFO L226 Difference]: Without dead ends: 4914 [2022-01-18 12:52:43,352 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=197, Invalid=559, Unknown=0, NotChecked=0, Total=756 [2022-01-18 12:52:43,354 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 534 mSDsluCounter, 967 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 1049 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 12:52:43,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [534 Valid, 1049 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 12:52:43,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4914 states. [2022-01-18 12:52:43,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4914 to 4909. [2022-01-18 12:52:43,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4909 states, 4908 states have (on average 3.021801140994295) internal successors, (14831), 4908 states have internal predecessors, (14831), 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) [2022-01-18 12:52:43,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4909 states to 4909 states and 14831 transitions. [2022-01-18 12:52:43,416 INFO L78 Accepts]: Start accepts. Automaton has 4909 states and 14831 transitions. Word has length 141 [2022-01-18 12:52:43,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:52:43,416 INFO L470 AbstractCegarLoop]: Abstraction has 4909 states and 14831 transitions. [2022-01-18 12:52:43,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 10.0) internal successors, (190), 19 states have internal predecessors, (190), 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) [2022-01-18 12:52:43,416 INFO L276 IsEmpty]: Start isEmpty. Operand 4909 states and 14831 transitions. [2022-01-18 12:52:43,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-01-18 12:52:43,423 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:52:43,423 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:52:43,449 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-01-18 12:52:43,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:52:43,640 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 12:52:43,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:52:43,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1959922121, now seen corresponding path program 5 times [2022-01-18 12:52:43,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:52:43,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889334789] [2022-01-18 12:52:43,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:52:43,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:52:43,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:52:45,138 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 12:52:45,138 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:52:45,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889334789] [2022-01-18 12:52:45,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889334789] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 12:52:45,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [961143217] [2022-01-18 12:52:45,138 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-01-18 12:52:45,138 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:52:45,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 12:52:45,139 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) [2022-01-18 12:52:45,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-18 12:52:45,240 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-01-18 12:52:45,241 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 12:52:45,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 68 conjunts are in the unsatisfiable core [2022-01-18 12:52:45,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 12:52:45,287 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 [2022-01-18 12:52:45,318 INFO L353 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-01-18 12:52:45,318 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-01-18 12:52:45,665 INFO L353 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-01-18 12:52:45,666 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 16 treesize of output 18 [2022-01-18 12:52:47,272 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 29 [2022-01-18 12:52:47,463 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 29 treesize of output 29 [2022-01-18 12:52:48,026 INFO L353 Elim1Store]: treesize reduction 48, result has 5.9 percent of original size [2022-01-18 12:52:48,026 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 16 [2022-01-18 12:52:48,195 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 12:52:48,196 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 12:52:48,525 WARN L838 $PredicateComparison]: unable to prove that (or (= (mod c_~v_assert~0 256) 0) (forall ((v_ArrVal_263 (Array Int Int))) (<= (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_263) c_~queue~0.base)) (.cse1 (* c_~front~0 4))) (+ (select .cse0 (+ c_~queue~0.offset .cse1)) c_~d~0 (select .cse0 (+ c_~queue~0.offset .cse1 4)))) c_~W~0))) is different from false [2022-01-18 12:52:48,545 WARN L838 $PredicateComparison]: unable to prove that (or (= (mod c_~v_assert~0 256) 0) (forall ((v_ArrVal_263 (Array Int Int)) (v_ArrVal_262 (Array Int Int))) (<= (let ((.cse0 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_262) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_263) c_~queue~0.base)) (.cse1 (* c_~front~0 4))) (+ c_~d~0 (select .cse0 (+ c_~queue~0.offset .cse1)) (select .cse0 (+ c_~queue~0.offset .cse1 4)))) c_~W~0))) is different from false [2022-01-18 12:52:48,889 INFO L353 Elim1Store]: treesize reduction 47, result has 53.0 percent of original size [2022-01-18 12:52:48,889 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 134 treesize of output 153 [2022-01-18 12:52:48,900 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-01-18 12:52:48,900 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 67 [2022-01-18 12:52:48,912 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-01-18 12:52:48,913 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 39 treesize of output 26 [2022-01-18 12:52:52,709 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 13 treesize of output 11 [2022-01-18 12:52:52,731 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 5 not checked. [2022-01-18 12:52:52,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [961143217] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 12:52:52,731 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 12:52:52,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 36, 36] total 98 [2022-01-18 12:52:52,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532080800] [2022-01-18 12:52:52,732 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 12:52:52,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2022-01-18 12:52:52,732 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:52:52,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2022-01-18 12:52:52,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=636, Invalid=8490, Unknown=2, NotChecked=378, Total=9506 [2022-01-18 12:52:52,734 INFO L87 Difference]: Start difference. First operand 4909 states and 14831 transitions. Second operand has 98 states, 98 states have (on average 3.8877551020408165) internal successors, (381), 98 states have internal predecessors, (381), 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) [2022-01-18 12:54:24,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:54:24,141 INFO L93 Difference]: Finished difference Result 96349 states and 307125 transitions. [2022-01-18 12:54:24,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 434 states. [2022-01-18 12:54:24,142 INFO L78 Accepts]: Start accepts. Automaton has has 98 states, 98 states have (on average 3.8877551020408165) internal successors, (381), 98 states have internal predecessors, (381), 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) Word has length 148 [2022-01-18 12:54:24,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:54:24,459 INFO L225 Difference]: With dead ends: 96349 [2022-01-18 12:54:24,459 INFO L226 Difference]: Without dead ends: 86076 [2022-01-18 12:54:24,473 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1027 GetRequests, 364 SyntacticMatches, 143 SemanticMatches, 520 ConstructedPredicates, 2 IntricatePredicates, 18 DeprecatedPredicates, 134878 ImplicationChecksByTransitivity, 79.5s TimeCoverageRelationStatistics Valid=34522, Invalid=235364, Unknown=2, NotChecked=2074, Total=271962 [2022-01-18 12:54:24,474 INFO L933 BasicCegarLoop]: 804 mSDtfsCounter, 11790 mSDsluCounter, 35463 mSDsCounter, 0 mSdLazyCounter, 14172 mSolverCounterSat, 1144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11790 SdHoareTripleChecker+Valid, 30519 SdHoareTripleChecker+Invalid, 37015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1144 IncrementalHoareTripleChecker+Valid, 14172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 21699 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-01-18 12:54:24,475 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11790 Valid, 30519 Invalid, 37015 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1144 Valid, 14172 Invalid, 0 Unknown, 21699 Unchecked, 7.6s Time] [2022-01-18 12:54:24,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86076 states. [2022-01-18 12:54:25,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86076 to 25870. [2022-01-18 12:54:25,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25870 states, 25869 states have (on average 3.307549576713441) internal successors, (85563), 25869 states have internal predecessors, (85563), 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) [2022-01-18 12:54:25,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25870 states to 25870 states and 85563 transitions. [2022-01-18 12:54:25,651 INFO L78 Accepts]: Start accepts. Automaton has 25870 states and 85563 transitions. Word has length 148 [2022-01-18 12:54:25,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:54:25,652 INFO L470 AbstractCegarLoop]: Abstraction has 25870 states and 85563 transitions. [2022-01-18 12:54:25,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 98 states, 98 states have (on average 3.8877551020408165) internal successors, (381), 98 states have internal predecessors, (381), 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) [2022-01-18 12:54:25,652 INFO L276 IsEmpty]: Start isEmpty. Operand 25870 states and 85563 transitions. [2022-01-18 12:54:25,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-01-18 12:54:25,688 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:54:25,688 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:54:25,719 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-01-18 12:54:25,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:54:25,917 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 12:54:25,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:54:25,917 INFO L85 PathProgramCache]: Analyzing trace with hash -864539759, now seen corresponding path program 6 times [2022-01-18 12:54:25,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:54:25,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564286304] [2022-01-18 12:54:25,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:54:25,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:54:25,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:54:26,928 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 12:54:26,928 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:54:26,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564286304] [2022-01-18 12:54:26,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564286304] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 12:54:26,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [204062795] [2022-01-18 12:54:26,929 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-01-18 12:54:26,929 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:54:26,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 12:54:26,930 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) [2022-01-18 12:54:26,930 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-01-18 12:54:27,073 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-01-18 12:54:27,073 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 12:54:27,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 61 conjunts are in the unsatisfiable core [2022-01-18 12:54:27,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 12:54:29,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 12:54:29,021 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 29 treesize of output 29 [2022-01-18 12:54:29,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 12:54:29,177 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 29 treesize of output 29 [2022-01-18 12:54:29,541 INFO L353 Elim1Store]: treesize reduction 48, result has 5.9 percent of original size [2022-01-18 12:54:29,542 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 16 [2022-01-18 12:54:29,669 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 12:54:29,669 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 12:54:30,149 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_301 (Array Int Int))) (<= (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_301) c_~queue~0.base)) (.cse1 (* c_~front~0 4))) (+ c_~d~0 (select .cse0 (+ c_~queue~0.offset .cse1 4)) (select .cse0 (+ c_~queue~0.offset .cse1)))) c_~W~0)) is different from false [2022-01-18 12:54:30,188 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_300 (Array Int Int)) (v_ArrVal_301 (Array Int Int))) (<= (let ((.cse0 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_300) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_301) c_~queue~0.base)) (.cse1 (* c_~front~0 4))) (+ c_~d~0 (select .cse0 (+ c_~queue~0.offset .cse1)) (select .cse0 (+ c_~queue~0.offset .cse1 4)))) c_~W~0)) is different from false [2022-01-18 12:54:30,712 INFO L353 Elim1Store]: treesize reduction 47, result has 53.0 percent of original size [2022-01-18 12:54:30,713 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 134 treesize of output 153 [2022-01-18 12:54:30,721 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-01-18 12:54:30,721 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 67 [2022-01-18 12:54:30,728 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-01-18 12:54:30,728 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 39 treesize of output 26 [2022-01-18 12:54:34,343 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 5 not checked. [2022-01-18 12:54:34,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [204062795] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 12:54:34,344 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 12:54:34,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 36, 36] total 97 [2022-01-18 12:54:34,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173781758] [2022-01-18 12:54:34,344 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 12:54:34,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 97 states [2022-01-18 12:54:34,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:54:34,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2022-01-18 12:54:34,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=708, Invalid=8228, Unknown=2, NotChecked=374, Total=9312 [2022-01-18 12:54:34,347 INFO L87 Difference]: Start difference. First operand 25870 states and 85563 transitions. Second operand has 97 states, 97 states have (on average 3.9278350515463916) internal successors, (381), 97 states have internal predecessors, (381), 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) [2022-01-18 12:54:53,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:54:53,240 INFO L93 Difference]: Finished difference Result 54993 states and 179174 transitions. [2022-01-18 12:54:53,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2022-01-18 12:54:53,240 INFO L78 Accepts]: Start accepts. Automaton has has 97 states, 97 states have (on average 3.9278350515463916) internal successors, (381), 97 states have internal predecessors, (381), 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) Word has length 148 [2022-01-18 12:54:53,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:54:53,381 INFO L225 Difference]: With dead ends: 54993 [2022-01-18 12:54:53,382 INFO L226 Difference]: Without dead ends: 54183 [2022-01-18 12:54:53,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 250 SyntacticMatches, 28 SemanticMatches, 211 ConstructedPredicates, 2 IntricatePredicates, 8 DeprecatedPredicates, 16359 ImplicationChecksByTransitivity, 18.6s TimeCoverageRelationStatistics Valid=5870, Invalid=38400, Unknown=48, NotChecked=838, Total=45156 [2022-01-18 12:54:53,388 INFO L933 BasicCegarLoop]: 373 mSDtfsCounter, 5151 mSDsluCounter, 17319 mSDsCounter, 0 mSdLazyCounter, 6021 mSolverCounterSat, 402 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5151 SdHoareTripleChecker+Valid, 14789 SdHoareTripleChecker+Invalid, 15255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 402 IncrementalHoareTripleChecker+Valid, 6021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8832 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-18 12:54:53,388 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5151 Valid, 14789 Invalid, 15255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [402 Valid, 6021 Invalid, 0 Unknown, 8832 Unchecked, 2.4s Time] [2022-01-18 12:54:53,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54183 states. [2022-01-18 12:54:54,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54183 to 27711. [2022-01-18 12:54:54,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27711 states, 27710 states have (on average 3.3056658246120536) internal successors, (91600), 27710 states have internal predecessors, (91600), 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) [2022-01-18 12:54:54,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27711 states to 27711 states and 91600 transitions. [2022-01-18 12:54:54,256 INFO L78 Accepts]: Start accepts. Automaton has 27711 states and 91600 transitions. Word has length 148 [2022-01-18 12:54:54,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:54:54,256 INFO L470 AbstractCegarLoop]: Abstraction has 27711 states and 91600 transitions. [2022-01-18 12:54:54,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 97 states, 97 states have (on average 3.9278350515463916) internal successors, (381), 97 states have internal predecessors, (381), 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) [2022-01-18 12:54:54,256 INFO L276 IsEmpty]: Start isEmpty. Operand 27711 states and 91600 transitions. [2022-01-18 12:54:54,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-01-18 12:54:54,327 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:54:54,327 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:54:54,377 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-01-18 12:54:54,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:54:54,543 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 12:54:54,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:54:54,544 INFO L85 PathProgramCache]: Analyzing trace with hash -837744407, now seen corresponding path program 7 times [2022-01-18 12:54:54,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:54:54,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583017063] [2022-01-18 12:54:54,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:54:54,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:54:54,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:54:56,121 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 12:54:56,122 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:54:56,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583017063] [2022-01-18 12:54:56,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583017063] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 12:54:56,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [333182886] [2022-01-18 12:54:56,122 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-01-18 12:54:56,122 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:54:56,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 12:54:56,123 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) [2022-01-18 12:54:56,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-01-18 12:54:56,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:54:56,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 70 conjunts are in the unsatisfiable core [2022-01-18 12:54:56,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 12:54:56,741 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 [2022-01-18 12:54:56,875 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 [2022-01-18 12:54:57,324 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 [2022-01-18 12:54:57,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 12:54:57,985 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 29 treesize of output 29 [2022-01-18 12:54:58,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 12:54:58,243 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 42 treesize of output 40 [2022-01-18 12:54:58,385 INFO L353 Elim1Store]: treesize reduction 48, result has 5.9 percent of original size [2022-01-18 12:54:58,386 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 16 [2022-01-18 12:54:58,542 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 12:54:58,542 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 12:54:58,740 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_344 (Array Int Int))) (<= (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_344) c_~queue~0.base) (+ c_~queue~0.offset (* c_~front~0 4))) c_~d~0 |c_thread2Thread1of1ForFork2_~temp~0#1|) c_~W~0)) is different from false [2022-01-18 12:54:58,744 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_344 (Array Int Int))) (<= (let ((.cse0 (* c_~front~0 4))) (+ c_~d~0 (select (select |c_#memory_int| c_~queue~0.base) (+ c_~queue~0.offset .cse0)) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_344) c_~queue~0.base) (+ c_~queue~0.offset .cse0 4)))) c_~W~0)) is different from false [2022-01-18 12:54:58,763 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_344 (Array Int Int)) (v_ArrVal_343 (Array Int Int))) (<= (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_343)) (.cse1 (* c_~front~0 4))) (+ (select (select .cse0 c_~queue~0.base) (+ c_~queue~0.offset .cse1)) (select (select (store .cse0 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_344) c_~queue~0.base) (+ c_~queue~0.offset .cse1 4)) c_~d~0)) c_~W~0)) is different from false [2022-01-18 12:55:01,441 INFO L353 Elim1Store]: treesize reduction 39, result has 40.0 percent of original size [2022-01-18 12:55:01,442 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 2 case distinctions, treesize of input 149 treesize of output 94 [2022-01-18 12:55:01,472 INFO L353 Elim1Store]: treesize reduction 47, result has 53.0 percent of original size [2022-01-18 12:55:01,473 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 1958 treesize of output 1794 [2022-01-18 12:55:01,489 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-18 12:55:01,490 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 1694 treesize of output 1390 [2022-01-18 12:55:01,534 INFO L353 Elim1Store]: treesize reduction 47, result has 53.0 percent of original size [2022-01-18 12:55:01,535 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 1438 treesize of output 1326 [2022-01-18 12:55:01,552 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 1238 treesize of output 1014 [2022-01-18 12:55:06,874 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 8 not checked. [2022-01-18 12:55:06,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [333182886] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 12:55:06,874 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 12:55:06,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 38, 39] total 103 [2022-01-18 12:55:06,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163289853] [2022-01-18 12:55:06,875 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 12:55:06,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 103 states [2022-01-18 12:55:06,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:55:06,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2022-01-18 12:55:06,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=707, Invalid=9177, Unknown=28, NotChecked=594, Total=10506 [2022-01-18 12:55:06,876 INFO L87 Difference]: Start difference. First operand 27711 states and 91600 transitions. Second operand has 103 states, 103 states have (on average 3.592233009708738) internal successors, (370), 103 states have internal predecessors, (370), 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) [2022-01-18 12:55:45,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:55:45,308 INFO L93 Difference]: Finished difference Result 51506 states and 167748 transitions. [2022-01-18 12:55:45,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-01-18 12:55:45,308 INFO L78 Accepts]: Start accepts. Automaton has has 103 states, 103 states have (on average 3.592233009708738) internal successors, (370), 103 states have internal predecessors, (370), 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) Word has length 148 [2022-01-18 12:55:45,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:55:45,401 INFO L225 Difference]: With dead ends: 51506 [2022-01-18 12:55:45,401 INFO L226 Difference]: Without dead ends: 44690 [2022-01-18 12:55:45,403 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 546 GetRequests, 273 SyntacticMatches, 51 SemanticMatches, 222 ConstructedPredicates, 3 IntricatePredicates, 3 DeprecatedPredicates, 18101 ImplicationChecksByTransitivity, 38.3s TimeCoverageRelationStatistics Valid=7249, Invalid=41127, Unknown=256, NotChecked=1320, Total=49952 [2022-01-18 12:55:45,403 INFO L933 BasicCegarLoop]: 356 mSDtfsCounter, 7761 mSDsluCounter, 17211 mSDsCounter, 0 mSdLazyCounter, 6481 mSolverCounterSat, 581 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7761 SdHoareTripleChecker+Valid, 15160 SdHoareTripleChecker+Invalid, 14445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 581 IncrementalHoareTripleChecker+Valid, 6481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 7383 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:55:45,403 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7761 Valid, 15160 Invalid, 14445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [581 Valid, 6481 Invalid, 0 Unknown, 7383 Unchecked, 3.1s Time] [2022-01-18 12:55:45,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44690 states. [2022-01-18 12:55:45,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44690 to 29779. [2022-01-18 12:55:45,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29779 states, 29778 states have (on average 3.273994223923702) internal successors, (97493), 29778 states have internal predecessors, (97493), 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) [2022-01-18 12:55:45,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29779 states to 29779 states and 97493 transitions. [2022-01-18 12:55:45,943 INFO L78 Accepts]: Start accepts. Automaton has 29779 states and 97493 transitions. Word has length 148 [2022-01-18 12:55:45,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:55:45,945 INFO L470 AbstractCegarLoop]: Abstraction has 29779 states and 97493 transitions. [2022-01-18 12:55:45,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 103 states, 103 states have (on average 3.592233009708738) internal successors, (370), 103 states have internal predecessors, (370), 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) [2022-01-18 12:55:45,945 INFO L276 IsEmpty]: Start isEmpty. Operand 29779 states and 97493 transitions. [2022-01-18 12:55:45,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-01-18 12:55:45,985 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:55:45,985 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:55:46,002 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-01-18 12:55:46,193 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,SelfDestructingSolverStorable11 [2022-01-18 12:55:46,193 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 12:55:46,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:55:46,193 INFO L85 PathProgramCache]: Analyzing trace with hash -293535479, now seen corresponding path program 8 times [2022-01-18 12:55:46,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:55:46,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726837705] [2022-01-18 12:55:46,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:55:46,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:55:46,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:55:48,239 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 12:55:48,239 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:55:48,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726837705] [2022-01-18 12:55:48,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726837705] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 12:55:48,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1248952951] [2022-01-18 12:55:48,240 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 12:55:48,240 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:55:48,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 12:55:48,243 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) [2022-01-18 12:55:48,244 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-01-18 12:55:48,343 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 12:55:48,343 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 12:55:48,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 71 conjunts are in the unsatisfiable core [2022-01-18 12:55:48,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 12:55:49,347 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 [2022-01-18 12:55:49,876 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 [2022-01-18 12:55:50,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 12:55:50,773 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 29 treesize of output 29 [2022-01-18 12:55:51,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 12:55:51,136 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 42 treesize of output 40 [2022-01-18 12:55:51,223 INFO L353 Elim1Store]: treesize reduction 48, result has 5.9 percent of original size [2022-01-18 12:55:51,223 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 16 [2022-01-18 12:55:51,406 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 12:55:51,406 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 12:55:51,518 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_385 (Array Int Int))) (<= (+ c_~d~0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_385) c_~queue~0.base) (+ c_~queue~0.offset (* c_~front~0 4)))) c_~W~0)) is different from false [2022-01-18 12:55:51,521 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_385 (Array Int Int))) (<= (+ c_~d~0 |c_thread2Thread1of1ForFork2_~temp~0#1| (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_385) c_~queue~0.base) (+ c_~queue~0.offset (* c_~front~0 4)))) c_~W~0)) is different from false [2022-01-18 12:55:51,524 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_385 (Array Int Int))) (<= (let ((.cse0 (* c_~front~0 4))) (+ c_~d~0 (select (select |c_#memory_int| c_~queue~0.base) (+ c_~queue~0.offset .cse0)) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_385) c_~queue~0.base) (+ c_~queue~0.offset .cse0 4)))) c_~W~0)) is different from false [2022-01-18 12:55:51,541 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_384 (Array Int Int)) (v_ArrVal_385 (Array Int Int))) (<= (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_384)) (.cse1 (* c_~front~0 4))) (+ c_~d~0 (select (select (store .cse0 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_385) c_~queue~0.base) (+ c_~queue~0.offset .cse1 4)) (select (select .cse0 c_~queue~0.base) (+ c_~queue~0.offset .cse1)))) c_~W~0)) is different from false [2022-01-18 12:55:53,653 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 12:55:53,653 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 117 treesize of output 81 [2022-01-18 12:55:53,682 INFO L353 Elim1Store]: treesize reduction 47, result has 53.0 percent of original size [2022-01-18 12:55:53,682 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 15286 treesize of output 13722 [2022-01-18 12:55:53,717 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-18 12:55:53,718 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13622 treesize of output 11190 [2022-01-18 12:55:53,754 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 11190 treesize of output 9398 [2022-01-18 12:55:53,814 INFO L353 Elim1Store]: treesize reduction 47, result has 53.0 percent of original size [2022-01-18 12:55:53,815 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 9446 treesize of output 8270 Received shutdown request... [2022-01-18 13:06:41,971 WARN L244 SmtUtils]: Removed 1 from assertion stack [2022-01-18 13:06:41,973 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-01-18 13:06:41,990 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-01-18 13:06:41,993 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-18 13:06:42,018 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-18 13:06:42,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-01-18 13:06:42,177 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was analyzing trace of length 149 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-1 context. [2022-01-18 13:06:42,179 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-01-18 13:06:42,179 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-01-18 13:06:42,179 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-01-18 13:06:42,181 INFO L732 BasicCegarLoop]: Path program histogram: [8, 2, 1, 1, 1] [2022-01-18 13:06:42,183 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 13:06:42,183 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 13:06:42,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 01:06:42 BasicIcfg [2022-01-18 13:06:42,184 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 13:06:42,184 INFO L158 Benchmark]: Toolchain (without parser) took 869683.87ms. Allocated memory was 476.1MB in the beginning and 3.8GB in the end (delta: 3.3GB). Free memory was 419.8MB in the beginning and 3.1GB in the end (delta: -2.7GB). Peak memory consumption was 2.8GB. Max. memory is 16.0GB. [2022-01-18 13:06:42,185 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 476.1MB. Free memory is still 436.9MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 13:06:42,185 INFO L158 Benchmark]: CACSL2BoogieTranslator took 258.29ms. Allocated memory was 476.1MB in the beginning and 620.8MB in the end (delta: 144.7MB). Free memory was 419.6MB in the beginning and 591.5MB in the end (delta: -171.9MB). Peak memory consumption was 8.7MB. Max. memory is 16.0GB. [2022-01-18 13:06:42,185 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.22ms. Allocated memory is still 620.8MB. Free memory was 591.5MB in the beginning and 589.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 13:06:42,185 INFO L158 Benchmark]: Boogie Preprocessor took 17.78ms. Allocated memory is still 620.8MB. Free memory was 589.5MB in the beginning and 588.4MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 13:06:42,185 INFO L158 Benchmark]: RCFGBuilder took 384.78ms. Allocated memory is still 620.8MB. Free memory was 588.4MB in the beginning and 567.5MB in the end (delta: 21.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2022-01-18 13:06:42,186 INFO L158 Benchmark]: TraceAbstraction took 868971.63ms. Allocated memory was 620.8MB in the beginning and 3.8GB in the end (delta: 3.2GB). Free memory was 567.5MB in the beginning and 3.1GB in the end (delta: -2.5GB). Peak memory consumption was 2.8GB. Max. memory is 16.0GB. [2022-01-18 13:06:42,187 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 476.1MB. Free memory is still 436.9MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 258.29ms. Allocated memory was 476.1MB in the beginning and 620.8MB in the end (delta: 144.7MB). Free memory was 419.6MB in the beginning and 591.5MB in the end (delta: -171.9MB). Peak memory consumption was 8.7MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 38.22ms. Allocated memory is still 620.8MB. Free memory was 591.5MB in the beginning and 589.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 17.78ms. Allocated memory is still 620.8MB. Free memory was 589.5MB in the beginning and 588.4MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 384.78ms. Allocated memory is still 620.8MB. Free memory was 588.4MB in the beginning and 567.5MB in the end (delta: 21.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * TraceAbstraction took 868971.63ms. Allocated memory was 620.8MB in the beginning and 3.8GB in the end (delta: 3.2GB). Free memory was 567.5MB in the beginning and 3.1GB in the end (delta: -2.5GB). Peak memory consumption was 2.8GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 116]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 149 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-1 context. - TimeoutResultAtElement [Line: 110]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 149 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-1 context. - TimeoutResultAtElement [Line: 109]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 149 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-1 context. - TimeoutResultAtElement [Line: 108]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 149 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 173 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 868.9s, OverallIterations: 13, TraceHistogramMax: 2, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.3s, AutomataDifference: 165.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 34155 SdHoareTripleChecker+Valid, 16.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 34155 mSDsluCounter, 78216 SdHoareTripleChecker+Invalid, 13.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 43042 IncrementalHoareTripleChecker+Unchecked, 88452 mSDsCounter, 2547 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 33084 IncrementalHoareTripleChecker+Invalid, 78673 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2547 mSolverCounterUnsat, 2911 mSDtfsCounter, 33084 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3665 GetRequests, 2117 SyntacticMatches, 252 SemanticMatches, 1296 ConstructedPredicates, 11 IntricatePredicates, 29 DeprecatedPredicates, 183534 ImplicationChecksByTransitivity, 152.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29779occurred in iteration=12, InterpolantAutomatonStates: 888, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.3s AutomataMinimizationTime, 12 MinimizatonAttempts, 116881 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 40.3s InterpolantComputationTime, 2667 NumberOfCodeBlocks, 2644 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 3741 ConstructedInterpolants, 344 QuantifiedInterpolants, 62043 SizeOfPredicates, 193 NumberOfNonLiveVariables, 2625 ConjunctsInSsa, 310 ConjunctsInUnsatCore, 28 InterpolantComputations, 4 PerfectInterpolantSequences, 81/336 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown