/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/parallel-misc-2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.abstract-por-f0ea240 [2022-02-10 22:34:11,351 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-10 22:34:11,353 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-10 22:34:11,417 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-10 22:34:11,417 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-10 22:34:11,418 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-10 22:34:11,419 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-10 22:34:11,427 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-10 22:34:11,428 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-10 22:34:11,433 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-10 22:34:11,433 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-10 22:34:11,434 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-10 22:34:11,434 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-10 22:34:11,435 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-10 22:34:11,435 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-10 22:34:11,436 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-10 22:34:11,436 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-10 22:34:11,437 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-10 22:34:11,437 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-10 22:34:11,438 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-10 22:34:11,439 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-10 22:34:11,441 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-10 22:34:11,444 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-10 22:34:11,445 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-10 22:34:11,451 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-10 22:34:11,452 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-10 22:34:11,452 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-10 22:34:11,453 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-10 22:34:11,453 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-10 22:34:11,454 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-10 22:34:11,454 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-10 22:34:11,454 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-10 22:34:11,455 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-10 22:34:11,456 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-10 22:34:11,457 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-10 22:34:11,457 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-10 22:34:11,457 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-10 22:34:11,457 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-10 22:34:11,457 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-10 22:34:11,458 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-10 22:34:11,458 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-10 22:34:11,459 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.epf [2022-02-10 22:34:11,483 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-10 22:34:11,483 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-10 22:34:11,484 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-10 22:34:11,484 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-10 22:34:11,484 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-10 22:34:11,485 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-10 22:34:11,485 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-10 22:34:11,485 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-10 22:34:11,485 INFO L138 SettingsManager]: * Use SBE=true [2022-02-10 22:34:11,485 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-10 22:34:11,486 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-10 22:34:11,486 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-10 22:34:11,486 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-10 22:34:11,486 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-10 22:34:11,486 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-10 22:34:11,486 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-10 22:34:11,486 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-10 22:34:11,486 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-10 22:34:11,486 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-10 22:34:11,487 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-10 22:34:11,487 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-10 22:34:11,487 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-10 22:34:11,487 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-10 22:34:11,487 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-10 22:34:11,488 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-10 22:34:11,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 22:34:11,488 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-10 22:34:11,488 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-10 22:34:11,488 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-10 22:34:11,488 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-10 22:34:11,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-10 22:34:11,488 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-10 22:34:11,489 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-10 22:34:11,489 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-10 22:34:11,690 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-10 22:34:11,707 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-10 22:34:11,709 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-10 22:34:11,710 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-10 22:34:11,710 INFO L275 PluginConnector]: CDTParser initialized [2022-02-10 22:34:11,711 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-misc-2.wvr.c [2022-02-10 22:34:11,747 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33551c0fa/152dc08820e946cc9804635965de004f/FLAGd3e4084b6 [2022-02-10 22:34:12,107 INFO L306 CDTParser]: Found 1 translation units. [2022-02-10 22:34:12,108 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-2.wvr.c [2022-02-10 22:34:12,123 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33551c0fa/152dc08820e946cc9804635965de004f/FLAGd3e4084b6 [2022-02-10 22:34:12,147 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33551c0fa/152dc08820e946cc9804635965de004f [2022-02-10 22:34:12,149 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-10 22:34:12,151 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-10 22:34:12,152 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-10 22:34:12,152 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-10 22:34:12,155 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-10 22:34:12,155 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 10:34:12" (1/1) ... [2022-02-10 22:34:12,156 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d7d722a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:34:12, skipping insertion in model container [2022-02-10 22:34:12,156 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 10:34:12" (1/1) ... [2022-02-10 22:34:12,160 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-10 22:34:12,175 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-10 22:34:12,328 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-2.wvr.c[2554,2567] [2022-02-10 22:34:12,330 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 22:34:12,336 INFO L203 MainTranslator]: Completed pre-run [2022-02-10 22:34:12,360 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-2.wvr.c[2554,2567] [2022-02-10 22:34:12,361 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 22:34:12,369 INFO L208 MainTranslator]: Completed translation [2022-02-10 22:34:12,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:34:12 WrapperNode [2022-02-10 22:34:12,370 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-10 22:34:12,371 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-10 22:34:12,371 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-10 22:34:12,371 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-10 22:34:12,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:34:12" (1/1) ... [2022-02-10 22:34:12,381 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:34:12" (1/1) ... [2022-02-10 22:34:12,400 INFO L137 Inliner]: procedures = 21, calls = 28, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 66 [2022-02-10 22:34:12,401 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-10 22:34:12,401 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-10 22:34:12,401 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-10 22:34:12,402 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-10 22:34:12,406 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:34:12" (1/1) ... [2022-02-10 22:34:12,406 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:34:12" (1/1) ... [2022-02-10 22:34:12,409 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:34:12" (1/1) ... [2022-02-10 22:34:12,409 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:34:12" (1/1) ... [2022-02-10 22:34:12,422 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:34:12" (1/1) ... [2022-02-10 22:34:12,424 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:34:12" (1/1) ... [2022-02-10 22:34:12,427 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:34:12" (1/1) ... [2022-02-10 22:34:12,429 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-10 22:34:12,430 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-10 22:34:12,430 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-10 22:34:12,430 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-10 22:34:12,431 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:34:12" (1/1) ... [2022-02-10 22:34:12,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 22:34:12,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:34:12,464 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-10 22:34:12,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-10 22:34:12,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-10 22:34:12,491 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-10 22:34:12,491 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-10 22:34:12,491 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-10 22:34:12,491 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-10 22:34:12,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-10 22:34:12,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-10 22:34:12,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-10 22:34:12,492 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-02-10 22:34:12,492 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-02-10 22:34:12,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-10 22:34:12,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-10 22:34:12,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-10 22:34:12,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-10 22:34:12,493 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-10 22:34:12,560 INFO L234 CfgBuilder]: Building ICFG [2022-02-10 22:34:12,561 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-10 22:34:12,756 INFO L275 CfgBuilder]: Performing block encoding [2022-02-10 22:34:12,770 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-10 22:34:12,771 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-10 22:34:12,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 10:34:12 BoogieIcfgContainer [2022-02-10 22:34:12,772 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-10 22:34:12,773 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-10 22:34:12,773 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-10 22:34:12,776 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-10 22:34:12,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.02 10:34:12" (1/3) ... [2022-02-10 22:34:12,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dbca1cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 10:34:12, skipping insertion in model container [2022-02-10 22:34:12,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:34:12" (2/3) ... [2022-02-10 22:34:12,777 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dbca1cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 10:34:12, skipping insertion in model container [2022-02-10 22:34:12,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 10:34:12" (3/3) ... [2022-02-10 22:34:12,778 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-misc-2.wvr.c [2022-02-10 22:34:12,781 WARN L154 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-10 22:34:12,781 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-10 22:34:12,781 INFO L168 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-10 22:34:12,781 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-10 22:34:12,804 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:34:12,804 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:34:12,804 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:34:12,804 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:34:12,805 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:34:12,805 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:34:12,805 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:34:12,805 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:34:12,805 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:34:12,806 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:34:12,806 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:34:12,806 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:34:12,806 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:34:12,806 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:34:12,807 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:34:12,807 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:34:12,807 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:34:12,807 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:34:12,808 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:34:12,808 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:34:12,808 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:34:12,809 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:34:12,809 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:34:12,809 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:34:12,811 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:34:12,811 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:34:12,811 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:34:12,811 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:34:12,812 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:34:12,812 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:34:12,812 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:34:12,812 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:34:12,815 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-02-10 22:34:12,844 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 22:34:12,848 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 [2022-02-10 22:34:12,848 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-10 22:34:12,856 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 103 places, 104 transitions, 224 flow [2022-02-10 22:34:12,908 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 636 states, 635 states have (on average 2.8) internal successors, (1778), 635 states have internal predecessors, (1778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:12,911 INFO L276 IsEmpty]: Start isEmpty. Operand has 636 states, 635 states have (on average 2.8) internal successors, (1778), 635 states have internal predecessors, (1778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:12,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-02-10 22:34:12,928 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:34:12,928 INFO L515 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] [2022-02-10 22:34:12,929 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:34:12,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:34:12,932 INFO L85 PathProgramCache]: Analyzing trace with hash 91702260, now seen corresponding path program 1 times [2022-02-10 22:34:12,938 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:34:12,939 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461240411] [2022-02-10 22:34:12,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:34:12,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:34:13,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:34:13,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:34:13,058 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:34:13,058 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461240411] [2022-02-10 22:34:13,058 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461240411] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:34:13,058 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:34:13,059 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-10 22:34:13,060 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640910315] [2022-02-10 22:34:13,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:34:13,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-10 22:34:13,063 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:34:13,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-10 22:34:13,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 22:34:13,089 INFO L87 Difference]: Start difference. First operand has 636 states, 635 states have (on average 2.8) internal successors, (1778), 635 states have internal predecessors, (1778), 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 34.5) internal successors, (69), 2 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:13,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:34:13,131 INFO L93 Difference]: Finished difference Result 636 states and 1679 transitions. [2022-02-10 22:34:13,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 22:34:13,136 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 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 69 [2022-02-10 22:34:13,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:34:13,148 INFO L225 Difference]: With dead ends: 636 [2022-02-10 22:34:13,148 INFO L226 Difference]: Without dead ends: 634 [2022-02-10 22:34:13,149 INFO L933 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 [2022-02-10 22:34:13,151 INFO L934 BasicCegarLoop]: 83 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:34:13,152 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 83 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:34:13,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2022-02-10 22:34:13,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 634. [2022-02-10 22:34:13,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 634 states, 633 states have (on average 2.6492890995260665) internal successors, (1677), 633 states have internal predecessors, (1677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:13,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 1677 transitions. [2022-02-10 22:34:13,233 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 1677 transitions. Word has length 69 [2022-02-10 22:34:13,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:34:13,234 INFO L470 AbstractCegarLoop]: Abstraction has 634 states and 1677 transitions. [2022-02-10 22:34:13,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:13,234 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 1677 transitions. [2022-02-10 22:34:13,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-02-10 22:34:13,241 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:34:13,242 INFO L515 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] [2022-02-10 22:34:13,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-10 22:34:13,242 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:34:13,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:34:13,245 INFO L85 PathProgramCache]: Analyzing trace with hash -638556778, now seen corresponding path program 1 times [2022-02-10 22:34:13,246 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:34:13,249 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870571015] [2022-02-10 22:34:13,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:34:13,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:34:13,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:34:13,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:34:13,542 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:34:13,542 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870571015] [2022-02-10 22:34:13,542 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870571015] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:34:13,542 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:34:13,542 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-10 22:34:13,542 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967907399] [2022-02-10 22:34:13,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:34:13,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 22:34:13,543 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:34:13,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 22:34:13,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:34:13,544 INFO L87 Difference]: Start difference. First operand 634 states and 1677 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:13,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:34:13,682 INFO L93 Difference]: Finished difference Result 899 states and 2413 transitions. [2022-02-10 22:34:13,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-10 22:34:13,683 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 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 69 [2022-02-10 22:34:13,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:34:13,687 INFO L225 Difference]: With dead ends: 899 [2022-02-10 22:34:13,688 INFO L226 Difference]: Without dead ends: 848 [2022-02-10 22:34:13,688 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:34:13,689 INFO L934 BasicCegarLoop]: 75 mSDtfsCounter, 76 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:34:13,689 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 324 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:34:13,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2022-02-10 22:34:13,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 689. [2022-02-10 22:34:13,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 689 states, 688 states have (on average 2.627906976744186) internal successors, (1808), 688 states have internal predecessors, (1808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:13,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 1808 transitions. [2022-02-10 22:34:13,716 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 1808 transitions. Word has length 69 [2022-02-10 22:34:13,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:34:13,716 INFO L470 AbstractCegarLoop]: Abstraction has 689 states and 1808 transitions. [2022-02-10 22:34:13,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:13,716 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 1808 transitions. [2022-02-10 22:34:13,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-02-10 22:34:13,718 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:34:13,718 INFO L515 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] [2022-02-10 22:34:13,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-10 22:34:13,718 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:34:13,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:34:13,719 INFO L85 PathProgramCache]: Analyzing trace with hash -849231512, now seen corresponding path program 1 times [2022-02-10 22:34:13,719 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:34:13,720 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159649515] [2022-02-10 22:34:13,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:34:13,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:34:13,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:34:13,893 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:34:13,894 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:34:13,894 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159649515] [2022-02-10 22:34:13,894 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159649515] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:34:13,894 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:34:13,894 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-10 22:34:13,894 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949310223] [2022-02-10 22:34:13,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:34:13,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-10 22:34:13,895 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:34:13,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-10 22:34:13,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-10 22:34:13,896 INFO L87 Difference]: Start difference. First operand 689 states and 1808 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:14,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:34:14,027 INFO L93 Difference]: Finished difference Result 1079 states and 2914 transitions. [2022-02-10 22:34:14,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-10 22:34:14,028 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 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 76 [2022-02-10 22:34:14,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:34:14,034 INFO L225 Difference]: With dead ends: 1079 [2022-02-10 22:34:14,035 INFO L226 Difference]: Without dead ends: 1046 [2022-02-10 22:34:14,035 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-02-10 22:34:14,040 INFO L934 BasicCegarLoop]: 92 mSDtfsCounter, 168 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:34:14,041 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 276 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:34:14,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2022-02-10 22:34:14,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 656. [2022-02-10 22:34:14,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 656 states, 655 states have (on average 2.645801526717557) internal successors, (1733), 655 states have internal predecessors, (1733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:14,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 656 states to 656 states and 1733 transitions. [2022-02-10 22:34:14,058 INFO L78 Accepts]: Start accepts. Automaton has 656 states and 1733 transitions. Word has length 76 [2022-02-10 22:34:14,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:34:14,059 INFO L470 AbstractCegarLoop]: Abstraction has 656 states and 1733 transitions. [2022-02-10 22:34:14,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:14,060 INFO L276 IsEmpty]: Start isEmpty. Operand 656 states and 1733 transitions. [2022-02-10 22:34:14,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-02-10 22:34:14,062 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:34:14,062 INFO L515 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] [2022-02-10 22:34:14,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-10 22:34:14,062 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:34:14,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:34:14,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1336332093, now seen corresponding path program 1 times [2022-02-10 22:34:14,063 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:34:14,063 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759147280] [2022-02-10 22:34:14,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:34:14,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:34:14,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:34:14,233 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:34:14,233 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:34:14,233 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759147280] [2022-02-10 22:34:14,233 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759147280] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:34:14,233 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:34:14,233 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-10 22:34:14,233 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101993880] [2022-02-10 22:34:14,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:34:14,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-10 22:34:14,234 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:34:14,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-10 22:34:14,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-10 22:34:14,235 INFO L87 Difference]: Start difference. First operand 656 states and 1733 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:14,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:34:14,345 INFO L93 Difference]: Finished difference Result 1243 states and 3316 transitions. [2022-02-10 22:34:14,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-10 22:34:14,345 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 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 76 [2022-02-10 22:34:14,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:34:14,351 INFO L225 Difference]: With dead ends: 1243 [2022-02-10 22:34:14,352 INFO L226 Difference]: Without dead ends: 1243 [2022-02-10 22:34:14,353 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-02-10 22:34:14,362 INFO L934 BasicCegarLoop]: 83 mSDtfsCounter, 219 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:34:14,363 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 249 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:34:14,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1243 states. [2022-02-10 22:34:14,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1243 to 703. [2022-02-10 22:34:14,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 702 states have (on average 2.6552706552706553) internal successors, (1864), 702 states have internal predecessors, (1864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:14,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 1864 transitions. [2022-02-10 22:34:14,382 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 1864 transitions. Word has length 76 [2022-02-10 22:34:14,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:34:14,383 INFO L470 AbstractCegarLoop]: Abstraction has 703 states and 1864 transitions. [2022-02-10 22:34:14,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:14,383 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 1864 transitions. [2022-02-10 22:34:14,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-02-10 22:34:14,385 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:34:14,386 INFO L515 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] [2022-02-10 22:34:14,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-10 22:34:14,388 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:34:14,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:34:14,392 INFO L85 PathProgramCache]: Analyzing trace with hash -83304769, now seen corresponding path program 2 times [2022-02-10 22:34:14,392 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:34:14,392 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62388898] [2022-02-10 22:34:14,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:34:14,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:34:14,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:34:14,519 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:34:14,519 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:34:14,519 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62388898] [2022-02-10 22:34:14,519 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62388898] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:34:14,519 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:34:14,520 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-10 22:34:14,520 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889950628] [2022-02-10 22:34:14,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:34:14,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-10 22:34:14,520 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:34:14,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-10 22:34:14,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-10 22:34:14,521 INFO L87 Difference]: Start difference. First operand 703 states and 1864 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:14,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:34:14,610 INFO L93 Difference]: Finished difference Result 1021 states and 2763 transitions. [2022-02-10 22:34:14,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-10 22:34:14,611 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 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 76 [2022-02-10 22:34:14,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:34:14,615 INFO L225 Difference]: With dead ends: 1021 [2022-02-10 22:34:14,615 INFO L226 Difference]: Without dead ends: 1009 [2022-02-10 22:34:14,615 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-02-10 22:34:14,615 INFO L934 BasicCegarLoop]: 91 mSDtfsCounter, 189 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:34:14,616 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [189 Valid, 263 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:34:14,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1009 states. [2022-02-10 22:34:14,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1009 to 691. [2022-02-10 22:34:14,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 690 states have (on average 2.6536231884057973) internal successors, (1831), 690 states have internal predecessors, (1831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:14,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 1831 transitions. [2022-02-10 22:34:14,647 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 1831 transitions. Word has length 76 [2022-02-10 22:34:14,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:34:14,647 INFO L470 AbstractCegarLoop]: Abstraction has 691 states and 1831 transitions. [2022-02-10 22:34:14,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:14,648 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 1831 transitions. [2022-02-10 22:34:14,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-02-10 22:34:14,649 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:34:14,649 INFO L515 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] [2022-02-10 22:34:14,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-10 22:34:14,649 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:34:14,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:34:14,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1050345588, now seen corresponding path program 2 times [2022-02-10 22:34:14,650 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:34:14,650 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124251478] [2022-02-10 22:34:14,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:34:14,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:34:14,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:34:14,771 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:34:14,771 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:34:14,771 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124251478] [2022-02-10 22:34:14,772 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124251478] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:34:14,772 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:34:14,772 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-10 22:34:14,772 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062897319] [2022-02-10 22:34:14,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:34:14,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-10 22:34:14,773 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:34:14,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-10 22:34:14,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-10 22:34:14,773 INFO L87 Difference]: Start difference. First operand 691 states and 1831 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:14,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:34:14,865 INFO L93 Difference]: Finished difference Result 1035 states and 2804 transitions. [2022-02-10 22:34:14,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-10 22:34:14,865 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 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 76 [2022-02-10 22:34:14,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:34:14,869 INFO L225 Difference]: With dead ends: 1035 [2022-02-10 22:34:14,869 INFO L226 Difference]: Without dead ends: 1035 [2022-02-10 22:34:14,869 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-02-10 22:34:14,871 INFO L934 BasicCegarLoop]: 82 mSDtfsCounter, 108 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:34:14,871 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 295 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:34:14,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1035 states. [2022-02-10 22:34:14,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1035 to 735. [2022-02-10 22:34:14,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 735 states, 734 states have (on average 2.664850136239782) internal successors, (1956), 734 states have internal predecessors, (1956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:14,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 1956 transitions. [2022-02-10 22:34:14,888 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 1956 transitions. Word has length 76 [2022-02-10 22:34:14,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:34:14,889 INFO L470 AbstractCegarLoop]: Abstraction has 735 states and 1956 transitions. [2022-02-10 22:34:14,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:14,889 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 1956 transitions. [2022-02-10 22:34:14,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-02-10 22:34:14,891 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:34:14,891 INFO L515 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] [2022-02-10 22:34:14,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-10 22:34:14,891 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:34:14,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:34:14,891 INFO L85 PathProgramCache]: Analyzing trace with hash -352237017, now seen corresponding path program 1 times [2022-02-10 22:34:14,891 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:34:14,891 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181237181] [2022-02-10 22:34:14,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:34:14,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:34:14,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:34:15,114 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:34:15,114 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:34:15,115 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181237181] [2022-02-10 22:34:15,115 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181237181] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:34:15,115 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [695834601] [2022-02-10 22:34:15,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:34:15,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:34:15,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:34:15,123 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) [2022-02-10 22:34:15,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-10 22:34:15,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:34:15,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 13 conjunts are in the unsatisfiable core [2022-02-10 22:34:15,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:34:15,584 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:34:15,584 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:34:15,958 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:34:15,958 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [695834601] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:34:15,958 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:34:15,958 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 18 [2022-02-10 22:34:15,958 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919314570] [2022-02-10 22:34:15,958 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:34:15,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:34:15,959 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:34:15,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:34:15,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:34:15,960 INFO L87 Difference]: Start difference. First operand 735 states and 1956 transitions. Second operand has 18 states, 18 states have (on average 7.333333333333333) internal successors, (132), 18 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:16,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:34:16,292 INFO L93 Difference]: Finished difference Result 1491 states and 4136 transitions. [2022-02-10 22:34:16,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-10 22:34:16,293 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.333333333333333) internal successors, (132), 18 states have internal predecessors, (132), 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 83 [2022-02-10 22:34:16,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:34:16,299 INFO L225 Difference]: With dead ends: 1491 [2022-02-10 22:34:16,299 INFO L226 Difference]: Without dead ends: 1491 [2022-02-10 22:34:16,299 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 154 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=133, Invalid=373, Unknown=0, NotChecked=0, Total=506 [2022-02-10 22:34:16,299 INFO L934 BasicCegarLoop]: 123 mSDtfsCounter, 463 mSDsluCounter, 793 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 855 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:34:16,300 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [463 Valid, 855 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:34:16,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1491 states. [2022-02-10 22:34:16,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1491 to 1167. [2022-02-10 22:34:16,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1167 states, 1166 states have (on average 2.739279588336192) internal successors, (3194), 1166 states have internal predecessors, (3194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:16,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1167 states to 1167 states and 3194 transitions. [2022-02-10 22:34:16,325 INFO L78 Accepts]: Start accepts. Automaton has 1167 states and 3194 transitions. Word has length 83 [2022-02-10 22:34:16,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:34:16,325 INFO L470 AbstractCegarLoop]: Abstraction has 1167 states and 3194 transitions. [2022-02-10 22:34:16,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.333333333333333) internal successors, (132), 18 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:16,325 INFO L276 IsEmpty]: Start isEmpty. Operand 1167 states and 3194 transitions. [2022-02-10 22:34:16,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-10 22:34:16,328 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:34:16,328 INFO L515 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] [2022-02-10 22:34:16,347 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-02-10 22:34:16,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:34:16,536 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:34:16,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:34:16,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1047508780, now seen corresponding path program 2 times [2022-02-10 22:34:16,536 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:34:16,536 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172635323] [2022-02-10 22:34:16,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:34:16,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:34:16,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:34:16,589 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:34:16,589 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:34:16,589 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172635323] [2022-02-10 22:34:16,589 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172635323] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:34:16,590 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:34:16,590 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-10 22:34:16,590 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23467173] [2022-02-10 22:34:16,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:34:16,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-10 22:34:16,590 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:34:16,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-10 22:34:16,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-10 22:34:16,591 INFO L87 Difference]: Start difference. First operand 1167 states and 3194 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:16,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:34:16,618 INFO L93 Difference]: Finished difference Result 1968 states and 5296 transitions. [2022-02-10 22:34:16,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-10 22:34:16,618 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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 90 [2022-02-10 22:34:16,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:34:16,624 INFO L225 Difference]: With dead ends: 1968 [2022-02-10 22:34:16,624 INFO L226 Difference]: Without dead ends: 1968 [2022-02-10 22:34:16,625 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-10 22:34:16,625 INFO L934 BasicCegarLoop]: 138 mSDtfsCounter, 76 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:34:16,625 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 317 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:34:16,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1968 states. [2022-02-10 22:34:16,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1968 to 1761. [2022-02-10 22:34:16,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1761 states, 1760 states have (on average 2.7397727272727272) internal successors, (4822), 1760 states have internal predecessors, (4822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:16,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1761 states to 1761 states and 4822 transitions. [2022-02-10 22:34:16,655 INFO L78 Accepts]: Start accepts. Automaton has 1761 states and 4822 transitions. Word has length 90 [2022-02-10 22:34:16,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:34:16,655 INFO L470 AbstractCegarLoop]: Abstraction has 1761 states and 4822 transitions. [2022-02-10 22:34:16,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:16,655 INFO L276 IsEmpty]: Start isEmpty. Operand 1761 states and 4822 transitions. [2022-02-10 22:34:16,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-10 22:34:16,658 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:34:16,659 INFO L515 BasicCegarLoop]: trace histogram [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] [2022-02-10 22:34:16,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-10 22:34:16,659 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:34:16,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:34:16,659 INFO L85 PathProgramCache]: Analyzing trace with hash 850035468, now seen corresponding path program 1 times [2022-02-10 22:34:16,659 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:34:16,659 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426190246] [2022-02-10 22:34:16,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:34:16,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:34:16,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:34:16,784 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-02-10 22:34:16,785 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:34:16,785 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426190246] [2022-02-10 22:34:16,785 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426190246] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:34:16,785 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1994750292] [2022-02-10 22:34:16,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:34:16,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:34:16,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:34:16,786 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:34:16,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-10 22:34:16,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:34:16,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 13 conjunts are in the unsatisfiable core [2022-02-10 22:34:16,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:34:17,174 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-02-10 22:34:17,174 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:34:17,610 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-02-10 22:34:17,611 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1994750292] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:34:17,611 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:34:17,611 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 18 [2022-02-10 22:34:17,611 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410575343] [2022-02-10 22:34:17,611 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:34:17,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:34:17,611 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:34:17,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:34:17,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:34:17,612 INFO L87 Difference]: Start difference. First operand 1761 states and 4822 transitions. Second operand has 18 states, 18 states have (on average 7.111111111111111) internal successors, (128), 18 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:18,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:34:18,131 INFO L93 Difference]: Finished difference Result 3833 states and 10750 transitions. [2022-02-10 22:34:18,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-10 22:34:18,132 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.111111111111111) internal successors, (128), 18 states have internal predecessors, (128), 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 90 [2022-02-10 22:34:18,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:34:18,145 INFO L225 Difference]: With dead ends: 3833 [2022-02-10 22:34:18,145 INFO L226 Difference]: Without dead ends: 3833 [2022-02-10 22:34:18,146 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 169 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=179, Invalid=523, Unknown=0, NotChecked=0, Total=702 [2022-02-10 22:34:18,146 INFO L934 BasicCegarLoop]: 124 mSDtfsCounter, 698 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 698 SdHoareTripleChecker+Valid, 734 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:34:18,146 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [698 Valid, 734 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:34:18,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3833 states. [2022-02-10 22:34:18,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3833 to 2777. [2022-02-10 22:34:18,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2777 states, 2776 states have (on average 2.805835734870317) internal successors, (7789), 2776 states have internal predecessors, (7789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:18,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2777 states to 2777 states and 7789 transitions. [2022-02-10 22:34:18,200 INFO L78 Accepts]: Start accepts. Automaton has 2777 states and 7789 transitions. Word has length 90 [2022-02-10 22:34:18,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:34:18,200 INFO L470 AbstractCegarLoop]: Abstraction has 2777 states and 7789 transitions. [2022-02-10 22:34:18,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.111111111111111) internal successors, (128), 18 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:18,201 INFO L276 IsEmpty]: Start isEmpty. Operand 2777 states and 7789 transitions. [2022-02-10 22:34:18,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-02-10 22:34:18,206 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:34:18,206 INFO L515 BasicCegarLoop]: trace histogram [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] [2022-02-10 22:34:18,223 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-10 22:34:18,422 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,SelfDestructingSolverStorable8 [2022-02-10 22:34:18,423 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:34:18,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:34:18,423 INFO L85 PathProgramCache]: Analyzing trace with hash 395024114, now seen corresponding path program 2 times [2022-02-10 22:34:18,423 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:34:18,423 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910994983] [2022-02-10 22:34:18,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:34:18,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:34:18,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:34:18,466 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-02-10 22:34:18,466 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:34:18,466 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910994983] [2022-02-10 22:34:18,467 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910994983] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:34:18,467 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:34:18,467 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-10 22:34:18,467 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400171338] [2022-02-10 22:34:18,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:34:18,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-10 22:34:18,467 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:34:18,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-10 22:34:18,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-10 22:34:18,468 INFO L87 Difference]: Start difference. First operand 2777 states and 7789 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:18,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:34:18,546 INFO L93 Difference]: Finished difference Result 5843 states and 16327 transitions. [2022-02-10 22:34:18,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-10 22:34:18,546 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 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 97 [2022-02-10 22:34:18,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:34:18,575 INFO L225 Difference]: With dead ends: 5843 [2022-02-10 22:34:18,576 INFO L226 Difference]: Without dead ends: 5843 [2022-02-10 22:34:18,576 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-10 22:34:18,577 INFO L934 BasicCegarLoop]: 127 mSDtfsCounter, 81 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:34:18,577 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 298 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:34:18,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5843 states. [2022-02-10 22:34:18,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5843 to 5063. [2022-02-10 22:34:18,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5063 states, 5062 states have (on average 2.851244567364678) internal successors, (14433), 5062 states have internal predecessors, (14433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:18,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5063 states to 5063 states and 14433 transitions. [2022-02-10 22:34:18,702 INFO L78 Accepts]: Start accepts. Automaton has 5063 states and 14433 transitions. Word has length 97 [2022-02-10 22:34:18,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:34:18,702 INFO L470 AbstractCegarLoop]: Abstraction has 5063 states and 14433 transitions. [2022-02-10 22:34:18,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:18,703 INFO L276 IsEmpty]: Start isEmpty. Operand 5063 states and 14433 transitions. [2022-02-10 22:34:18,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-02-10 22:34:18,713 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:34:18,713 INFO L515 BasicCegarLoop]: trace histogram [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] [2022-02-10 22:34:18,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-10 22:34:18,713 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:34:18,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:34:18,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1148970286, now seen corresponding path program 1 times [2022-02-10 22:34:18,714 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:34:18,714 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649225529] [2022-02-10 22:34:18,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:34:18,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:34:18,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:34:18,831 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:34:18,831 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:34:18,831 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649225529] [2022-02-10 22:34:18,831 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649225529] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:34:18,832 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1339388655] [2022-02-10 22:34:18,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:34:18,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:34:18,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:34:18,848 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:34:18,895 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-10 22:34:18,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:34:18,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 18 conjunts are in the unsatisfiable core [2022-02-10 22:34:18,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:34:19,154 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:34:19,154 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:34:19,315 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:34:19,316 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1339388655] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:34:19,316 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:34:19,316 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 11 [2022-02-10 22:34:19,316 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983359619] [2022-02-10 22:34:19,316 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:34:19,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:34:19,317 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:34:19,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:34:19,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:34:19,317 INFO L87 Difference]: Start difference. First operand 5063 states and 14433 transitions. Second operand has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:19,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:34:19,591 INFO L93 Difference]: Finished difference Result 7556 states and 21146 transitions. [2022-02-10 22:34:19,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-10 22:34:19,591 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 states have internal predecessors, (101), 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 97 [2022-02-10 22:34:19,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:34:19,605 INFO L225 Difference]: With dead ends: 7556 [2022-02-10 22:34:19,605 INFO L226 Difference]: Without dead ends: 7505 [2022-02-10 22:34:19,606 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 192 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2022-02-10 22:34:19,606 INFO L934 BasicCegarLoop]: 148 mSDtfsCounter, 167 mSDsluCounter, 1029 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 1116 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:34:19,606 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 1116 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:34:19,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7505 states. [2022-02-10 22:34:19,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7505 to 6726. [2022-02-10 22:34:19,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6726 states, 6725 states have (on average 2.850260223048327) internal successors, (19168), 6725 states have internal predecessors, (19168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:19,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6726 states to 6726 states and 19168 transitions. [2022-02-10 22:34:19,715 INFO L78 Accepts]: Start accepts. Automaton has 6726 states and 19168 transitions. Word has length 97 [2022-02-10 22:34:19,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:34:19,716 INFO L470 AbstractCegarLoop]: Abstraction has 6726 states and 19168 transitions. [2022-02-10 22:34:19,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:19,716 INFO L276 IsEmpty]: Start isEmpty. Operand 6726 states and 19168 transitions. [2022-02-10 22:34:19,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-02-10 22:34:19,728 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:34:19,729 INFO L515 BasicCegarLoop]: trace histogram [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] [2022-02-10 22:34:19,759 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-10 22:34:19,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:34:19,960 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:34:19,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:34:19,960 INFO L85 PathProgramCache]: Analyzing trace with hash 795269086, now seen corresponding path program 2 times [2022-02-10 22:34:19,961 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:34:19,961 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112115234] [2022-02-10 22:34:19,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:34:19,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:34:19,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:34:20,104 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:34:20,104 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:34:20,104 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112115234] [2022-02-10 22:34:20,104 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112115234] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:34:20,104 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1444797095] [2022-02-10 22:34:20,104 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-10 22:34:20,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:34:20,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:34:20,105 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:34:20,107 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-10 22:34:20,158 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-10 22:34:20,158 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:34:20,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 18 conjunts are in the unsatisfiable core [2022-02-10 22:34:20,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:34:20,371 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:34:20,371 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:34:20,515 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:34:20,516 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1444797095] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:34:20,516 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:34:20,516 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 12 [2022-02-10 22:34:20,518 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500299678] [2022-02-10 22:34:20,518 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:34:20,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-10 22:34:20,519 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:34:20,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-10 22:34:20,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-02-10 22:34:20,519 INFO L87 Difference]: Start difference. First operand 6726 states and 19168 transitions. Second operand has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:20,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:34:20,828 INFO L93 Difference]: Finished difference Result 11441 states and 32093 transitions. [2022-02-10 22:34:20,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-10 22:34:20,828 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 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 97 [2022-02-10 22:34:20,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:34:20,852 INFO L225 Difference]: With dead ends: 11441 [2022-02-10 22:34:20,852 INFO L226 Difference]: Without dead ends: 11390 [2022-02-10 22:34:20,853 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 191 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2022-02-10 22:34:20,853 INFO L934 BasicCegarLoop]: 173 mSDtfsCounter, 261 mSDsluCounter, 1254 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 1350 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:34:20,854 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [261 Valid, 1350 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:34:20,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11390 states. [2022-02-10 22:34:20,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11390 to 8603. [2022-02-10 22:34:20,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8603 states, 8602 states have (on average 2.862822599395489) internal successors, (24626), 8602 states have internal predecessors, (24626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:21,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8603 states to 8603 states and 24626 transitions. [2022-02-10 22:34:21,014 INFO L78 Accepts]: Start accepts. Automaton has 8603 states and 24626 transitions. Word has length 97 [2022-02-10 22:34:21,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:34:21,015 INFO L470 AbstractCegarLoop]: Abstraction has 8603 states and 24626 transitions. [2022-02-10 22:34:21,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:21,015 INFO L276 IsEmpty]: Start isEmpty. Operand 8603 states and 24626 transitions. [2022-02-10 22:34:21,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-02-10 22:34:21,028 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:34:21,029 INFO L515 BasicCegarLoop]: trace histogram [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] [2022-02-10 22:34:21,046 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-10 22:34:21,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:34:21,245 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:34:21,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:34:21,245 INFO L85 PathProgramCache]: Analyzing trace with hash 880971410, now seen corresponding path program 3 times [2022-02-10 22:34:21,245 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:34:21,245 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531339078] [2022-02-10 22:34:21,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:34:21,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:34:21,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:34:21,391 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:34:21,391 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:34:21,391 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531339078] [2022-02-10 22:34:21,391 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531339078] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:34:21,391 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [694328513] [2022-02-10 22:34:21,391 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-10 22:34:21,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:34:21,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:34:21,416 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) [2022-02-10 22:34:21,418 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-10 22:34:21,544 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-02-10 22:34:21,544 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:34:21,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 18 conjunts are in the unsatisfiable core [2022-02-10 22:34:21,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:34:21,774 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:34:21,774 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:34:21,927 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:34:21,927 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [694328513] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:34:21,927 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:34:21,927 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 11 [2022-02-10 22:34:21,928 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084199537] [2022-02-10 22:34:21,928 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:34:21,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:34:21,928 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:34:21,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:34:21,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:34:21,929 INFO L87 Difference]: Start difference. First operand 8603 states and 24626 transitions. Second operand has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:22,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:34:22,111 INFO L93 Difference]: Finished difference Result 12530 states and 35392 transitions. [2022-02-10 22:34:22,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-10 22:34:22,111 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 states have internal predecessors, (101), 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 97 [2022-02-10 22:34:22,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:34:22,138 INFO L225 Difference]: With dead ends: 12530 [2022-02-10 22:34:22,138 INFO L226 Difference]: Without dead ends: 12479 [2022-02-10 22:34:22,139 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 192 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2022-02-10 22:34:22,139 INFO L934 BasicCegarLoop]: 156 mSDtfsCounter, 258 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 822 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:34:22,139 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [258 Valid, 822 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:34:22,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12479 states. [2022-02-10 22:34:22,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12479 to 11126. [2022-02-10 22:34:22,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11126 states, 11125 states have (on average 2.8750561797752807) internal successors, (31985), 11125 states have internal predecessors, (31985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:22,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11126 states to 11126 states and 31985 transitions. [2022-02-10 22:34:22,373 INFO L78 Accepts]: Start accepts. Automaton has 11126 states and 31985 transitions. Word has length 97 [2022-02-10 22:34:22,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:34:22,373 INFO L470 AbstractCegarLoop]: Abstraction has 11126 states and 31985 transitions. [2022-02-10 22:34:22,374 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:22,374 INFO L276 IsEmpty]: Start isEmpty. Operand 11126 states and 31985 transitions. [2022-02-10 22:34:22,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-02-10 22:34:22,393 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:34:22,393 INFO L515 BasicCegarLoop]: trace histogram [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] [2022-02-10 22:34:22,425 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-02-10 22:34:22,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-02-10 22:34:22,626 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:34:22,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:34:22,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1405878532, now seen corresponding path program 4 times [2022-02-10 22:34:22,627 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:34:22,627 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448069417] [2022-02-10 22:34:22,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:34:22,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:34:22,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:34:22,766 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:34:22,766 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:34:22,766 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448069417] [2022-02-10 22:34:22,767 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448069417] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:34:22,767 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [305299655] [2022-02-10 22:34:22,767 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-10 22:34:22,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:34:22,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:34:22,790 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) [2022-02-10 22:34:22,791 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-10 22:34:22,848 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-10 22:34:22,848 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:34:22,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 18 conjunts are in the unsatisfiable core [2022-02-10 22:34:22,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:34:23,041 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:34:23,041 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:34:23,182 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:34:23,182 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [305299655] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:34:23,182 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:34:23,182 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 12 [2022-02-10 22:34:23,183 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001447737] [2022-02-10 22:34:23,183 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:34:23,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-10 22:34:23,183 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:34:23,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-10 22:34:23,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-02-10 22:34:23,184 INFO L87 Difference]: Start difference. First operand 11126 states and 31985 transitions. Second operand has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:23,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:34:23,420 INFO L93 Difference]: Finished difference Result 16322 states and 46218 transitions. [2022-02-10 22:34:23,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-10 22:34:23,421 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 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 97 [2022-02-10 22:34:23,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:34:23,455 INFO L225 Difference]: With dead ends: 16322 [2022-02-10 22:34:23,455 INFO L226 Difference]: Without dead ends: 16271 [2022-02-10 22:34:23,455 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 191 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2022-02-10 22:34:23,456 INFO L934 BasicCegarLoop]: 188 mSDtfsCounter, 272 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 1192 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:34:23,456 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [272 Valid, 1192 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:34:23,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16271 states. [2022-02-10 22:34:23,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16271 to 12925. [2022-02-10 22:34:23,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12925 states, 12924 states have (on average 2.8837821108016093) internal successors, (37270), 12924 states have internal predecessors, (37270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:23,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12925 states to 12925 states and 37270 transitions. [2022-02-10 22:34:23,958 INFO L78 Accepts]: Start accepts. Automaton has 12925 states and 37270 transitions. Word has length 97 [2022-02-10 22:34:23,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:34:23,958 INFO L470 AbstractCegarLoop]: Abstraction has 12925 states and 37270 transitions. [2022-02-10 22:34:23,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:23,958 INFO L276 IsEmpty]: Start isEmpty. Operand 12925 states and 37270 transitions. [2022-02-10 22:34:23,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-02-10 22:34:23,980 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:34:23,980 INFO L515 BasicCegarLoop]: trace histogram [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] [2022-02-10 22:34:23,999 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-02-10 22:34:24,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:34:24,199 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:34:24,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:34:24,200 INFO L85 PathProgramCache]: Analyzing trace with hash -663022990, now seen corresponding path program 1 times [2022-02-10 22:34:24,200 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:34:24,200 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171063076] [2022-02-10 22:34:24,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:34:24,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:34:24,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:34:24,339 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-02-10 22:34:24,339 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:34:24,339 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171063076] [2022-02-10 22:34:24,339 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171063076] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:34:24,339 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:34:24,339 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-10 22:34:24,340 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558692453] [2022-02-10 22:34:24,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:34:24,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-10 22:34:24,340 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:34:24,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-10 22:34:24,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-10 22:34:24,341 INFO L87 Difference]: Start difference. First operand 12925 states and 37270 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:24,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:34:24,449 INFO L93 Difference]: Finished difference Result 12783 states and 36086 transitions. [2022-02-10 22:34:24,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-10 22:34:24,463 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 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 97 [2022-02-10 22:34:24,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:34:24,498 INFO L225 Difference]: With dead ends: 12783 [2022-02-10 22:34:24,499 INFO L226 Difference]: Without dead ends: 12783 [2022-02-10 22:34:24,501 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-10 22:34:24,502 INFO L934 BasicCegarLoop]: 131 mSDtfsCounter, 82 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:34:24,504 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 305 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:34:24,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12783 states. [2022-02-10 22:34:24,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12783 to 11322. [2022-02-10 22:34:24,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11322 states, 11321 states have (on average 2.8554014663015637) internal successors, (32326), 11321 states have internal predecessors, (32326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:24,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11322 states to 11322 states and 32326 transitions. [2022-02-10 22:34:24,771 INFO L78 Accepts]: Start accepts. Automaton has 11322 states and 32326 transitions. Word has length 97 [2022-02-10 22:34:24,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:34:24,771 INFO L470 AbstractCegarLoop]: Abstraction has 11322 states and 32326 transitions. [2022-02-10 22:34:24,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:24,772 INFO L276 IsEmpty]: Start isEmpty. Operand 11322 states and 32326 transitions. [2022-02-10 22:34:24,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-02-10 22:34:24,788 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:34:24,789 INFO L515 BasicCegarLoop]: trace histogram [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] [2022-02-10 22:34:24,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-10 22:34:24,789 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:34:24,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:34:24,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1249554398, now seen corresponding path program 5 times [2022-02-10 22:34:24,789 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:34:24,789 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450910943] [2022-02-10 22:34:24,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:34:24,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:34:24,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:34:24,894 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:34:24,894 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:34:24,894 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450910943] [2022-02-10 22:34:24,895 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450910943] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:34:24,895 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1228036730] [2022-02-10 22:34:24,895 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-10 22:34:24,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:34:24,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:34:24,896 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) [2022-02-10 22:34:24,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-10 22:34:25,007 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2022-02-10 22:34:25,007 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:34:25,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 18 conjunts are in the unsatisfiable core [2022-02-10 22:34:25,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:34:25,328 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:34:25,329 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:34:25,506 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:34:25,507 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1228036730] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:34:25,507 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:34:25,507 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 12 [2022-02-10 22:34:25,507 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517733374] [2022-02-10 22:34:25,507 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:34:25,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-10 22:34:25,508 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:34:25,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-10 22:34:25,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-02-10 22:34:25,509 INFO L87 Difference]: Start difference. First operand 11322 states and 32326 transitions. Second operand has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:25,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:34:25,802 INFO L93 Difference]: Finished difference Result 17155 states and 48106 transitions. [2022-02-10 22:34:25,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-10 22:34:25,802 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 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 97 [2022-02-10 22:34:25,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:34:25,834 INFO L225 Difference]: With dead ends: 17155 [2022-02-10 22:34:25,834 INFO L226 Difference]: Without dead ends: 17104 [2022-02-10 22:34:25,834 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 191 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2022-02-10 22:34:25,835 INFO L934 BasicCegarLoop]: 180 mSDtfsCounter, 272 mSDsluCounter, 996 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 1110 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:34:25,835 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [272 Valid, 1110 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:34:25,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17104 states. [2022-02-10 22:34:26,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17104 to 10198. [2022-02-10 22:34:26,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10198 states, 10197 states have (on average 2.8494655290771798) internal successors, (29056), 10197 states have internal predecessors, (29056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:26,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10198 states to 10198 states and 29056 transitions. [2022-02-10 22:34:26,098 INFO L78 Accepts]: Start accepts. Automaton has 10198 states and 29056 transitions. Word has length 97 [2022-02-10 22:34:26,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:34:26,099 INFO L470 AbstractCegarLoop]: Abstraction has 10198 states and 29056 transitions. [2022-02-10 22:34:26,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:26,099 INFO L276 IsEmpty]: Start isEmpty. Operand 10198 states and 29056 transitions. [2022-02-10 22:34:26,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-02-10 22:34:26,113 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:34:26,114 INFO L515 BasicCegarLoop]: trace histogram [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] [2022-02-10 22:34:26,132 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-02-10 22:34:26,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:34:26,319 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:34:26,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:34:26,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1971095186, now seen corresponding path program 6 times [2022-02-10 22:34:26,319 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:34:26,319 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514174784] [2022-02-10 22:34:26,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:34:26,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:34:26,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:34:26,446 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:34:26,447 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:34:26,447 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514174784] [2022-02-10 22:34:26,447 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514174784] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:34:26,447 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2088158358] [2022-02-10 22:34:26,447 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-10 22:34:26,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:34:26,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:34:26,454 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) [2022-02-10 22:34:26,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-10 22:34:26,614 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-02-10 22:34:26,614 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:34:26,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 18 conjunts are in the unsatisfiable core [2022-02-10 22:34:26,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:34:26,852 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:34:26,852 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:34:27,026 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:34:27,026 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2088158358] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:34:27,026 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:34:27,026 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 11 [2022-02-10 22:34:27,027 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739474079] [2022-02-10 22:34:27,027 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:34:27,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:34:27,028 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:34:27,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:34:27,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:34:27,029 INFO L87 Difference]: Start difference. First operand 10198 states and 29056 transitions. Second operand has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:27,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:34:27,287 INFO L93 Difference]: Finished difference Result 12383 states and 34885 transitions. [2022-02-10 22:34:27,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-10 22:34:27,287 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 states have internal predecessors, (101), 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 97 [2022-02-10 22:34:27,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:34:27,305 INFO L225 Difference]: With dead ends: 12383 [2022-02-10 22:34:27,305 INFO L226 Difference]: Without dead ends: 12332 [2022-02-10 22:34:27,306 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 192 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2022-02-10 22:34:27,306 INFO L934 BasicCegarLoop]: 157 mSDtfsCounter, 248 mSDsluCounter, 924 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 1023 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:34:27,306 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [248 Valid, 1023 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:34:27,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12332 states. [2022-02-10 22:34:27,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12332 to 11306. [2022-02-10 22:34:27,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11306 states, 11305 states have (on average 2.8598850066342325) internal successors, (32331), 11305 states have internal predecessors, (32331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:27,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11306 states to 11306 states and 32331 transitions. [2022-02-10 22:34:27,605 INFO L78 Accepts]: Start accepts. Automaton has 11306 states and 32331 transitions. Word has length 97 [2022-02-10 22:34:27,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:34:27,606 INFO L470 AbstractCegarLoop]: Abstraction has 11306 states and 32331 transitions. [2022-02-10 22:34:27,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:27,606 INFO L276 IsEmpty]: Start isEmpty. Operand 11306 states and 32331 transitions. [2022-02-10 22:34:27,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-02-10 22:34:27,625 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:34:27,625 INFO L515 BasicCegarLoop]: trace histogram [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] [2022-02-10 22:34:27,631 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-02-10 22:34:27,832 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,SelfDestructingSolverStorable16 [2022-02-10 22:34:27,832 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:34:27,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:34:27,832 INFO L85 PathProgramCache]: Analyzing trace with hash -951593220, now seen corresponding path program 7 times [2022-02-10 22:34:27,832 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:34:27,832 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467245380] [2022-02-10 22:34:27,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:34:27,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:34:27,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:34:27,944 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:34:27,944 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:34:27,944 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467245380] [2022-02-10 22:34:27,944 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467245380] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:34:27,945 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2111583846] [2022-02-10 22:34:27,945 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-10 22:34:27,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:34:27,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:34:27,946 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) [2022-02-10 22:34:27,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-02-10 22:34:27,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:34:28,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 18 conjunts are in the unsatisfiable core [2022-02-10 22:34:28,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:34:28,208 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:34:28,208 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:34:28,366 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:34:28,366 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2111583846] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:34:28,366 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:34:28,366 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 12 [2022-02-10 22:34:28,366 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994010907] [2022-02-10 22:34:28,366 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:34:28,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-10 22:34:28,367 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:34:28,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-10 22:34:28,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-02-10 22:34:28,368 INFO L87 Difference]: Start difference. First operand 11306 states and 32331 transitions. Second operand has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:28,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:34:28,687 INFO L93 Difference]: Finished difference Result 14985 states and 41796 transitions. [2022-02-10 22:34:28,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-10 22:34:28,687 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 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 97 [2022-02-10 22:34:28,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:34:28,713 INFO L225 Difference]: With dead ends: 14985 [2022-02-10 22:34:28,713 INFO L226 Difference]: Without dead ends: 14934 [2022-02-10 22:34:28,713 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 191 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2022-02-10 22:34:28,714 INFO L934 BasicCegarLoop]: 189 mSDtfsCounter, 240 mSDsluCounter, 1275 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 1385 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:34:28,715 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [240 Valid, 1385 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:34:28,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14934 states. [2022-02-10 22:34:28,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14934 to 9330. [2022-02-10 22:34:28,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9330 states, 9329 states have (on average 2.836424054025083) internal successors, (26461), 9329 states have internal predecessors, (26461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:28,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9330 states to 9330 states and 26461 transitions. [2022-02-10 22:34:28,871 INFO L78 Accepts]: Start accepts. Automaton has 9330 states and 26461 transitions. Word has length 97 [2022-02-10 22:34:28,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:34:28,871 INFO L470 AbstractCegarLoop]: Abstraction has 9330 states and 26461 transitions. [2022-02-10 22:34:28,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:28,871 INFO L276 IsEmpty]: Start isEmpty. Operand 9330 states and 26461 transitions. [2022-02-10 22:34:28,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-02-10 22:34:28,953 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:34:28,953 INFO L515 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2022-02-10 22:34:28,969 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-02-10 22:34:29,167 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,SelfDestructingSolverStorable17 [2022-02-10 22:34:29,168 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:34:29,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:34:29,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1886658527, now seen corresponding path program 8 times [2022-02-10 22:34:29,168 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:34:29,168 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027323481] [2022-02-10 22:34:29,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:34:29,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:34:29,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:34:29,469 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:34:29,469 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:34:29,469 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027323481] [2022-02-10 22:34:29,469 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027323481] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:34:29,469 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1025276269] [2022-02-10 22:34:29,469 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-10 22:34:29,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:34:29,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:34:29,474 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:34:29,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-02-10 22:34:29,659 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-10 22:34:29,659 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:34:29,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 20 conjunts are in the unsatisfiable core [2022-02-10 22:34:29,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:34:30,258 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-02-10 22:34:30,259 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:34:31,746 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-02-10 22:34:31,747 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1025276269] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:34:31,747 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:34:31,747 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 13] total 37 [2022-02-10 22:34:31,747 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745018465] [2022-02-10 22:34:31,747 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:34:31,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-02-10 22:34:31,748 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:34:31,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-02-10 22:34:31,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=1213, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:34:31,748 INFO L87 Difference]: Start difference. First operand 9330 states and 26461 transitions. Second operand has 37 states, 37 states have (on average 5.621621621621622) internal successors, (208), 37 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:35:08,112 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-02-10 22:35:11,672 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-02-10 22:35:27,517 WARN L228 SmtUtils]: Spent 6.53s on a formula simplification. DAG size of input: 61 DAG size of output: 56 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-10 22:35:38,410 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-02-10 22:35:48,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:35:48,236 INFO L93 Difference]: Finished difference Result 37512 states and 105475 transitions. [2022-02-10 22:35:48,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2022-02-10 22:35:48,237 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 5.621621621621622) internal successors, (208), 37 states have internal predecessors, (208), 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 104 [2022-02-10 22:35:48,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:35:48,308 INFO L225 Difference]: With dead ends: 37512 [2022-02-10 22:35:48,309 INFO L226 Difference]: Without dead ends: 36736 [2022-02-10 22:35:48,316 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 382 GetRequests, 195 SyntacticMatches, 9 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11264 ImplicationChecksByTransitivity, 58.1s TimeCoverageRelationStatistics Valid=2454, Invalid=29760, Unknown=6, NotChecked=0, Total=32220 [2022-02-10 22:35:48,317 INFO L934 BasicCegarLoop]: 691 mSDtfsCounter, 3103 mSDsluCounter, 14907 mSDsCounter, 0 mSdLazyCounter, 5646 mSolverCounterSat, 168 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3103 SdHoareTripleChecker+Valid, 14164 SdHoareTripleChecker+Invalid, 6719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 5646 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 902 IncrementalHoareTripleChecker+Unchecked, 19.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:35:48,317 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [3103 Valid, 14164 Invalid, 6719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 5646 Invalid, 3 Unknown, 902 Unchecked, 19.3s Time] [2022-02-10 22:35:48,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36736 states. [2022-02-10 22:35:48,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36736 to 33210. [2022-02-10 22:35:48,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33210 states, 33209 states have (on average 2.830527868951188) internal successors, (93999), 33209 states have internal predecessors, (93999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:35:48,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33210 states to 33210 states and 93999 transitions. [2022-02-10 22:35:48,978 INFO L78 Accepts]: Start accepts. Automaton has 33210 states and 93999 transitions. Word has length 104 [2022-02-10 22:35:48,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:35:48,978 INFO L470 AbstractCegarLoop]: Abstraction has 33210 states and 93999 transitions. [2022-02-10 22:35:48,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 5.621621621621622) internal successors, (208), 37 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:35:48,979 INFO L276 IsEmpty]: Start isEmpty. Operand 33210 states and 93999 transitions. [2022-02-10 22:35:49,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-02-10 22:35:49,022 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:35:49,022 INFO L515 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2022-02-10 22:35:49,026 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-02-10 22:35:49,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:35:49,223 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:35:49,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:35:49,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1431746242, now seen corresponding path program 9 times [2022-02-10 22:35:49,224 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:35:49,224 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376236556] [2022-02-10 22:35:49,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:35:49,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:35:49,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:35:49,597 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:35:49,597 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:35:49,597 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376236556] [2022-02-10 22:35:49,597 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376236556] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:35:49,597 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1430646911] [2022-02-10 22:35:49,597 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-10 22:35:49,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:35:49,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:35:49,599 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:35:49,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-02-10 22:35:49,789 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-02-10 22:35:49,790 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:35:49,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 21 conjunts are in the unsatisfiable core [2022-02-10 22:35:49,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:35:50,327 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 1 proven. 25 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:35:50,328 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:35:54,106 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 1 proven. 25 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:35:54,106 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1430646911] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:35:54,106 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:35:54,106 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12, 12] total 35 [2022-02-10 22:35:54,106 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442708257] [2022-02-10 22:35:54,106 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:35:54,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-02-10 22:35:54,107 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:35:54,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-02-10 22:35:54,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=1069, Unknown=1, NotChecked=0, Total=1190 [2022-02-10 22:35:54,108 INFO L87 Difference]: Start difference. First operand 33210 states and 93999 transitions. Second operand has 35 states, 35 states have (on average 6.171428571428572) internal successors, (216), 35 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:36:07,554 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-02-10 22:36:54,888 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-02-10 22:37:17,841 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-02-10 22:37:19,367 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-02-10 22:38:12,321 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-02-10 22:38:13,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:38:13,200 INFO L93 Difference]: Finished difference Result 86920 states and 241455 transitions. [2022-02-10 22:38:13,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-02-10 22:38:13,201 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 6.171428571428572) internal successors, (216), 35 states have internal predecessors, (216), 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 104 [2022-02-10 22:38:13,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:38:13,392 INFO L225 Difference]: With dead ends: 86920 [2022-02-10 22:38:13,393 INFO L226 Difference]: Without dead ends: 86920 [2022-02-10 22:38:13,418 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4101 ImplicationChecksByTransitivity, 122.3s TimeCoverageRelationStatistics Valid=1628, Invalid=13128, Unknown=6, NotChecked=0, Total=14762 [2022-02-10 22:38:13,418 INFO L934 BasicCegarLoop]: 305 mSDtfsCounter, 3411 mSDsluCounter, 6389 mSDsCounter, 0 mSdLazyCounter, 2886 mSolverCounterSat, 191 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3411 SdHoareTripleChecker+Valid, 5910 SdHoareTripleChecker+Invalid, 3079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 2886 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:38:13,419 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [3411 Valid, 5910 Invalid, 3079 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 2886 Invalid, 2 Unknown, 0 Unchecked, 20.2s Time] [2022-02-10 22:38:13,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86920 states. [2022-02-10 22:38:14,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86920 to 59162. [2022-02-10 22:38:14,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59162 states, 59161 states have (on average 2.845371105965078) internal successors, (168335), 59161 states have internal predecessors, (168335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:38:15,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59162 states to 59162 states and 168335 transitions. [2022-02-10 22:38:15,093 INFO L78 Accepts]: Start accepts. Automaton has 59162 states and 168335 transitions. Word has length 104 [2022-02-10 22:38:15,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:38:15,093 INFO L470 AbstractCegarLoop]: Abstraction has 59162 states and 168335 transitions. [2022-02-10 22:38:15,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 6.171428571428572) internal successors, (216), 35 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:38:15,093 INFO L276 IsEmpty]: Start isEmpty. Operand 59162 states and 168335 transitions. [2022-02-10 22:38:15,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-02-10 22:38:15,345 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:38:15,345 INFO L515 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 4, 4, 3, 3, 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] [2022-02-10 22:38:15,349 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-02-10 22:38:15,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:38:15,550 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:38:15,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:38:15,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1271728951, now seen corresponding path program 10 times [2022-02-10 22:38:15,550 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:38:15,550 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324296906] [2022-02-10 22:38:15,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:38:15,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:38:15,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:38:21,912 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 72 proven. 75 refuted. 3 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:38:21,913 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:38:21,913 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324296906] [2022-02-10 22:38:21,913 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324296906] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:38:21,913 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [221273943] [2022-02-10 22:38:21,913 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-10 22:38:21,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:38:21,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:38:21,927 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:38:21,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-02-10 22:38:22,450 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-10 22:38:22,450 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:38:22,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 23 conjunts are in the unsatisfiable core [2022-02-10 22:38:22,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:38:23,401 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 70 proven. 16 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-02-10 22:38:23,402 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:38:32,507 WARN L838 $PredicateComparison]: unable to prove that (forall ((~N~0 Int)) (let ((.cse0 (* 2 ~N~0))) (or (< (mod c_~i2~0 4294967296) (mod .cse0 4294967296)) (<= (+ ~N~0 (* 2147483648 (div (+ |c_thread1Thread1of1ForFork0_#t~post3| 2) 4294967296))) (let ((.cse1 (div .cse0 4294967296))) (+ 2147483647 (* (div (+ (* (- 2) ~N~0) |c_thread1Thread1of1ForFork0_#t~post3| 2 (* 4294967296 .cse1)) 4294967296) 2147483648) (* .cse1 2147483648))))))) is different from false [2022-02-10 22:38:49,551 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 70 proven. 15 refuted. 0 times theorem prover too weak. 64 trivial. 1 not checked. [2022-02-10 22:38:49,551 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [221273943] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:38:49,552 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:38:49,552 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 14, 14] total 48 [2022-02-10 22:38:49,552 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719676678] [2022-02-10 22:38:49,552 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:38:49,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-02-10 22:38:49,552 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:38:49,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-02-10 22:38:49,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=206, Invalid=1954, Unknown=6, NotChecked=90, Total=2256 [2022-02-10 22:38:49,563 INFO L87 Difference]: Start difference. First operand 59162 states and 168335 transitions. Second operand has 48 states, 48 states have (on average 4.854166666666667) internal successors, (233), 48 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:41:38,838 WARN L228 SmtUtils]: Spent 32.33s on a formula simplification. DAG size of input: 92 DAG size of output: 58 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-10 22:42:10,792 WARN L228 SmtUtils]: Spent 8.32s on a formula simplification that was a NOOP. DAG size: 74 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-10 22:42:29,587 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-02-10 22:43:32,029 WARN L228 SmtUtils]: Spent 24.90s on a formula simplification that was a NOOP. DAG size: 93 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-10 22:44:44,406 WARN L228 SmtUtils]: Spent 9.35s on a formula simplification that was a NOOP. DAG size: 80 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-10 22:46:31,769 WARN L228 SmtUtils]: Spent 15.87s on a formula simplification. DAG size of input: 73 DAG size of output: 66 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-10 22:47:29,754 WARN L228 SmtUtils]: Spent 6.47s on a formula simplification that was a NOOP. DAG size: 62 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) Received shutdown request... [2022-02-10 22:48:49,088 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 [2022-02-10 22:48:49,089 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-10 22:48:50,094 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-02-10 22:48:50,289 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2022-02-10 22:48:50,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-02-10 22:48:50,297 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 256 SyntacticMatches, 14 SemanticMatches, 91 ConstructedPredicates, 1 IntricatePredicates, 2 DeprecatedPredicates, 2863 ImplicationChecksByTransitivity, 611.3s TimeCoverageRelationStatistics Valid=1067, Invalid=7138, Unknown=171, NotChecked=180, Total=8556 [2022-02-10 22:48:50,297 INFO L934 BasicCegarLoop]: 131 mSDtfsCounter, 1226 mSDsluCounter, 3434 mSDsCounter, 0 mSdLazyCounter, 1049 mSolverCounterSat, 23 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1226 SdHoareTripleChecker+Valid, 3198 SdHoareTripleChecker+Invalid, 2270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1049 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 1197 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-02-10 22:48:50,298 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1226 Valid, 3198 Invalid, 2270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1049 Invalid, 1 Unknown, 1197 Unchecked, 5.6s Time] [2022-02-10 22:48:50,298 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-02-10 22:48:50,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-10 22:48:50,299 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was constructing difference of abstraction (59162states) and FLOYD_HOARE automaton (currently 59 states, 48 states before enhancement),while executing Executor. [2022-02-10 22:48:50,303 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 [2022-02-10 22:48:50,307 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-02-10 22:48:50,307 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-02-10 22:48:50,309 INFO L733 BasicCegarLoop]: Path program histogram: [10, 2, 2, 2, 2, 1, 1, 1] [2022-02-10 22:48:50,310 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-10 22:48:50,310 INFO L184 ceAbstractionStarter]: Computing trace abstraction results [2022-02-10 22:48:50,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.02 10:48:50 BasicIcfg [2022-02-10 22:48:50,312 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-10 22:48:50,312 INFO L158 Benchmark]: Toolchain (without parser) took 878160.81ms. Allocated memory was 231.7MB in the beginning and 3.0GB in the end (delta: 2.7GB). Free memory was 206.1MB in the beginning and 2.2GB in the end (delta: -2.0GB). Peak memory consumption was 746.8MB. Max. memory is 8.0GB. [2022-02-10 22:48:50,312 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 231.7MB. Free memory is still 192.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-10 22:48:50,312 INFO L158 Benchmark]: CACSL2BoogieTranslator took 217.88ms. Allocated memory is still 231.7MB. Free memory was 206.1MB in the beginning and 203.0MB in the end (delta: 3.0MB). Peak memory consumption was 9.9MB. Max. memory is 8.0GB. [2022-02-10 22:48:50,312 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.23ms. Allocated memory is still 231.7MB. Free memory was 203.0MB in the beginning and 201.5MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-10 22:48:50,313 INFO L158 Benchmark]: Boogie Preprocessor took 27.85ms. Allocated memory is still 231.7MB. Free memory was 201.5MB in the beginning and 200.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-10 22:48:50,313 INFO L158 Benchmark]: RCFGBuilder took 342.76ms. Allocated memory is still 231.7MB. Free memory was 200.0MB in the beginning and 187.1MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-02-10 22:48:50,313 INFO L158 Benchmark]: TraceAbstraction took 877538.42ms. Allocated memory was 231.7MB in the beginning and 3.0GB in the end (delta: 2.7GB). Free memory was 186.7MB in the beginning and 2.2GB in the end (delta: -2.0GB). Peak memory consumption was 728.5MB. Max. memory is 8.0GB. [2022-02-10 22:48:50,314 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 231.7MB. Free memory is still 192.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 217.88ms. Allocated memory is still 231.7MB. Free memory was 206.1MB in the beginning and 203.0MB in the end (delta: 3.0MB). Peak memory consumption was 9.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 30.23ms. Allocated memory is still 231.7MB. Free memory was 203.0MB in the beginning and 201.5MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 27.85ms. Allocated memory is still 231.7MB. Free memory was 201.5MB in the beginning and 200.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 342.76ms. Allocated memory is still 231.7MB. Free memory was 200.0MB in the beginning and 187.1MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 877538.42ms. Allocated memory was 231.7MB in the beginning and 3.0GB in the end (delta: 2.7GB). Free memory was 186.7MB in the beginning and 2.2GB in the end (delta: -2.0GB). Peak memory consumption was 728.5MB. Max. memory is 8.0GB. * 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: 99]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (59162states) and FLOYD_HOARE automaton (currently 59 states, 48 states before enhancement),while executing Executor. - TimeoutResultAtElement [Line: 94]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (59162states) and FLOYD_HOARE automaton (currently 59 states, 48 states before enhancement),while executing Executor. - TimeoutResultAtElement [Line: 93]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (59162states) and FLOYD_HOARE automaton (currently 59 states, 48 states before enhancement),while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 121 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 877.5s, OverallIterations: 21, TraceHistogramMax: 7, PathProgramHistogramMax: 10, EmptinessCheckTime: 0.5s, AutomataDifference: 820.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 6 mSolverCounterUnknown, 11618 SdHoareTripleChecker+Valid, 47.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11618 mSDsluCounter, 35269 SdHoareTripleChecker+Invalid, 45.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 2099 IncrementalHoareTripleChecker+Unchecked, 35106 mSDsCounter, 537 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12325 IncrementalHoareTripleChecker+Invalid, 14967 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 537 mSolverCounterUnsat, 3467 mSDtfsCounter, 12325 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2934 GetRequests, 2324 SyntacticMatches, 41 SemanticMatches, 568 ConstructedPredicates, 1 IntricatePredicates, 2 DeprecatedPredicates, 18571 ImplicationChecksByTransitivity, 793.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=59162occurred in iteration=20, InterpolantAutomatonStates: 402, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.7s AutomataMinimizationTime, 20 MinimizatonAttempts, 58620 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 46.4s InterpolantComputationTime, 3110 NumberOfCodeBlocks, 3110 NumberOfCodeBlocksAsserted, 51 NumberOfCheckSat, 4257 ConstructedInterpolants, 88 QuantifiedInterpolants, 30673 SizeOfPredicates, 137 NumberOfNonLiveVariables, 2455 ConjunctsInSsa, 216 ConjunctsInUnsatCore, 45 InterpolantComputations, 9 PerfectInterpolantSequences, 497/1047 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