/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-17 23:30:45,598 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-17 23:30:45,600 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-17 23:30:45,676 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-17 23:30:45,677 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-17 23:30:45,679 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-17 23:30:45,684 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-17 23:30:45,687 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-17 23:30:45,688 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-17 23:30:45,692 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-17 23:30:45,693 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-17 23:30:45,693 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-17 23:30:45,694 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-17 23:30:45,694 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-17 23:30:45,695 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-17 23:30:45,696 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-17 23:30:45,696 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-17 23:30:45,697 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-17 23:30:45,698 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-17 23:30:45,699 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-17 23:30:45,700 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-17 23:30:45,702 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-17 23:30:45,704 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-17 23:30:45,705 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-17 23:30:45,715 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-17 23:30:45,723 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-17 23:30:45,723 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-17 23:30:45,724 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-17 23:30:45,724 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 [2022-01-17 23:30:45,753 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-17 23:30:45,753 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-17 23:30:45,753 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-17 23:30:45,754 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-17 23:30:45,754 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-17 23:30:45,754 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-17 23:30:45,755 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-17 23:30:45,755 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-17 23:30:45,755 INFO L138 SettingsManager]: * Use SBE=true [2022-01-17 23:30:45,755 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-17 23:30:45,756 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-17 23:30:45,756 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-17 23:30:45,756 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-17 23:30:45,756 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-17 23:30:45,756 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-17 23:30:45,756 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-17 23:30:45,756 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-17 23:30:45,757 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-17 23:30:45,757 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-17 23:30:45,757 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-17 23:30:45,757 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-17 23:30:45,757 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-17 23:30:45,757 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-17 23:30:45,757 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-17 23:30:45,757 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-17 23:30:45,758 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-17 23:30:45,758 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-17 23:30:45,758 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-17 23:30:45,758 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-17 23:30:45,758 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-17 23:30:45,758 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-17 23:30:45,758 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-17 23:30:45,759 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-17 23:30:45,759 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-17 23:30:45,959 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-17 23:30:45,974 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-17 23:30:45,975 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-17 23:30:45,976 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-17 23:30:45,979 INFO L275 PluginConnector]: CDTParser initialized [2022-01-17 23:30:45,980 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-1.i [2022-01-17 23:30:46,039 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ede6814cd/57d12768aa8a4dc1a8c1aa4639a97fbc/FLAG7869bfe82 [2022-01-17 23:30:46,469 INFO L306 CDTParser]: Found 1 translation units. [2022-01-17 23:30:46,469 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-1.i [2022-01-17 23:30:46,488 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ede6814cd/57d12768aa8a4dc1a8c1aa4639a97fbc/FLAG7869bfe82 [2022-01-17 23:30:46,500 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ede6814cd/57d12768aa8a4dc1a8c1aa4639a97fbc [2022-01-17 23:30:46,502 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-17 23:30:46,504 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-17 23:30:46,506 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-17 23:30:46,507 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-17 23:30:46,510 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-17 23:30:46,511 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.01 11:30:46" (1/1) ... [2022-01-17 23:30:46,511 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@211b896 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:30:46, skipping insertion in model container [2022-01-17 23:30:46,512 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.01 11:30:46" (1/1) ... [2022-01-17 23:30:46,517 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-17 23:30:46,568 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-17 23:30:46,731 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-1.i[820,833] [2022-01-17 23:30:47,048 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-17 23:30:47,061 INFO L203 MainTranslator]: Completed pre-run [2022-01-17 23:30:47,068 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-1.i[820,833] [2022-01-17 23:30:47,101 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-17 23:30:47,158 INFO L208 MainTranslator]: Completed translation [2022-01-17 23:30:47,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:30:47 WrapperNode [2022-01-17 23:30:47,158 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-17 23:30:47,159 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-17 23:30:47,159 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-17 23:30:47,159 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-17 23:30:47,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:30:47" (1/1) ... [2022-01-17 23:30:47,184 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:30:47" (1/1) ... [2022-01-17 23:30:47,201 INFO L137 Inliner]: procedures = 364, calls = 25, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 67 [2022-01-17 23:30:47,201 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-17 23:30:47,202 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-17 23:30:47,202 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-17 23:30:47,202 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-17 23:30:47,208 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:30:47" (1/1) ... [2022-01-17 23:30:47,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:30:47" (1/1) ... [2022-01-17 23:30:47,211 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:30:47" (1/1) ... [2022-01-17 23:30:47,211 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:30:47" (1/1) ... [2022-01-17 23:30:47,215 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:30:47" (1/1) ... [2022-01-17 23:30:47,219 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:30:47" (1/1) ... [2022-01-17 23:30:47,220 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:30:47" (1/1) ... [2022-01-17 23:30:47,222 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-17 23:30:47,223 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-17 23:30:47,223 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-17 23:30:47,223 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-17 23:30:47,224 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:30:47" (1/1) ... [2022-01-17 23:30:47,230 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-17 23:30:47,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-17 23:30:47,255 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-17 23:30:47,258 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-17 23:30:47,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-17 23:30:47,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-17 23:30:47,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-17 23:30:47,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-17 23:30:47,282 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-01-17 23:30:47,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-17 23:30:47,282 INFO L130 BoogieDeclarations]: Found specification of procedure thread_function_mutex [2022-01-17 23:30:47,282 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_function_mutex [2022-01-17 23:30:47,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-17 23:30:47,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-17 23:30:47,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-17 23:30:47,284 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-17 23:30:47,375 INFO L234 CfgBuilder]: Building ICFG [2022-01-17 23:30:47,376 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-17 23:30:47,568 INFO L275 CfgBuilder]: Performing block encoding [2022-01-17 23:30:47,574 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-17 23:30:47,574 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-17 23:30:47,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.01 11:30:47 BoogieIcfgContainer [2022-01-17 23:30:47,575 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-17 23:30:47,577 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-17 23:30:47,577 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-17 23:30:47,583 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-17 23:30:47,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.01 11:30:46" (1/3) ... [2022-01-17 23:30:47,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d2e18a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.01 11:30:47, skipping insertion in model container [2022-01-17 23:30:47,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:30:47" (2/3) ... [2022-01-17 23:30:47,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d2e18a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.01 11:30:47, skipping insertion in model container [2022-01-17 23:30:47,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.01 11:30:47" (3/3) ... [2022-01-17 23:30:47,585 INFO L111 eAbstractionObserver]: Analyzing ICFG pthread-demo-datarace-1.i [2022-01-17 23:30:47,589 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-17 23:30:47,590 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-17 23:30:47,590 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-17 23:30:47,590 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-17 23:30:47,622 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:47,622 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:47,622 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:47,623 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:47,623 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:47,623 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:47,623 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:47,623 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:47,624 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:47,624 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:47,624 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:47,624 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:47,624 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:47,624 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:47,624 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:47,625 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:47,625 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:47,625 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:47,626 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:47,626 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:47,626 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:47,626 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:47,626 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:47,627 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:47,627 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:47,627 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:47,627 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:47,627 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:47,628 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:47,628 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:47,628 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:47,628 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:47,628 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:47,629 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:47,629 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:47,629 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:47,629 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:47,629 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:47,629 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:47,630 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:47,630 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:47,630 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:47,630 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:47,630 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:47,630 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:47,631 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:47,633 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:47,634 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:47,634 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:47,634 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:47,634 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:47,634 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:47,634 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:47,635 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:47,635 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:30:47,638 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-01-17 23:30:47,672 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-17 23:30:47,678 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-17 23:30:47,678 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-17 23:30:47,688 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 94 places, 97 transitions, 202 flow [2022-01-17 23:30:47,734 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 353 states, 352 states have (on average 2.0255681818181817) internal successors, (713), 352 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:47,739 INFO L276 IsEmpty]: Start isEmpty. Operand has 353 states, 352 states have (on average 2.0255681818181817) internal successors, (713), 352 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:47,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-17 23:30:47,753 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:47,754 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:47,754 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-17 23:30:47,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:47,759 INFO L85 PathProgramCache]: Analyzing trace with hash -412203326, now seen corresponding path program 1 times [2022-01-17 23:30:47,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:47,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287410505] [2022-01-17 23:30:47,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:47,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:47,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:48,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:48,022 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:48,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287410505] [2022-01-17 23:30:48,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287410505] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:48,023 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:48,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-17 23:30:48,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099541658] [2022-01-17 23:30:48,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:48,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-17 23:30:48,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:48,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-17 23:30:48,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-17 23:30:48,065 INFO L87 Difference]: Start difference. First operand has 353 states, 352 states have (on average 2.0255681818181817) internal successors, (713), 352 states have internal predecessors, (713), 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 29.0) internal successors, (58), 2 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:48,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:48,108 INFO L93 Difference]: Finished difference Result 351 states and 657 transitions. [2022-01-17 23:30:48,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-17 23:30:48,111 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 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 58 [2022-01-17 23:30:48,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:48,135 INFO L225 Difference]: With dead ends: 351 [2022-01-17 23:30:48,136 INFO L226 Difference]: Without dead ends: 297 [2022-01-17 23:30:48,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-17 23:30:48,140 INFO L933 BasicCegarLoop]: 78 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:48,141 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 78 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-17 23:30:48,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2022-01-17 23:30:48,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 297. [2022-01-17 23:30:48,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 296 states have (on average 1.8547297297297298) internal successors, (549), 296 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:48,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 549 transitions. [2022-01-17 23:30:48,210 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 549 transitions. Word has length 58 [2022-01-17 23:30:48,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:48,211 INFO L470 AbstractCegarLoop]: Abstraction has 297 states and 549 transitions. [2022-01-17 23:30:48,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:48,212 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 549 transitions. [2022-01-17 23:30:48,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-17 23:30:48,220 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:48,220 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:48,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-17 23:30:48,221 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-17 23:30:48,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:48,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1088740258, now seen corresponding path program 1 times [2022-01-17 23:30:48,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:48,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223455458] [2022-01-17 23:30:48,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:48,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:48,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:48,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:48,330 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:48,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223455458] [2022-01-17 23:30:48,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223455458] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:48,330 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:48,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-17 23:30:48,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373951617] [2022-01-17 23:30:48,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:48,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-17 23:30:48,332 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:48,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-17 23:30:48,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-17 23:30:48,333 INFO L87 Difference]: Start difference. First operand 297 states and 549 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:48,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:48,368 INFO L93 Difference]: Finished difference Result 437 states and 829 transitions. [2022-01-17 23:30:48,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-17 23:30:48,369 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 58 [2022-01-17 23:30:48,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:48,371 INFO L225 Difference]: With dead ends: 437 [2022-01-17 23:30:48,371 INFO L226 Difference]: Without dead ends: 437 [2022-01-17 23:30:48,374 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-17 23:30:48,376 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 23 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:48,377 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 156 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-17 23:30:48,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2022-01-17 23:30:48,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 311. [2022-01-17 23:30:48,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 310 states have (on average 1.8612903225806452) internal successors, (577), 310 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:48,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 577 transitions. [2022-01-17 23:30:48,392 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 577 transitions. Word has length 58 [2022-01-17 23:30:48,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:48,393 INFO L470 AbstractCegarLoop]: Abstraction has 311 states and 577 transitions. [2022-01-17 23:30:48,393 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:48,393 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 577 transitions. [2022-01-17 23:30:48,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-01-17 23:30:48,394 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:48,394 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:48,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-17 23:30:48,395 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-17 23:30:48,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:48,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1826468594, now seen corresponding path program 1 times [2022-01-17 23:30:48,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:48,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471299847] [2022-01-17 23:30:48,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:48,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:48,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:48,487 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:48,487 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:48,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471299847] [2022-01-17 23:30:48,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471299847] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:48,488 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:48,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-17 23:30:48,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733611294] [2022-01-17 23:30:48,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:48,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-17 23:30:48,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:48,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-17 23:30:48,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-17 23:30:48,491 INFO L87 Difference]: Start difference. First operand 311 states and 577 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 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) [2022-01-17 23:30:48,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:48,519 INFO L93 Difference]: Finished difference Result 444 states and 843 transitions. [2022-01-17 23:30:48,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-17 23:30:48,519 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 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 [2022-01-17 23:30:48,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:48,522 INFO L225 Difference]: With dead ends: 444 [2022-01-17 23:30:48,522 INFO L226 Difference]: Without dead ends: 444 [2022-01-17 23:30:48,524 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-17 23:30:48,528 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 24 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:48,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 159 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-17 23:30:48,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2022-01-17 23:30:48,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 330. [2022-01-17 23:30:48,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 329 states have (on average 1.8693009118541033) internal successors, (615), 329 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:48,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 615 transitions. [2022-01-17 23:30:48,543 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 615 transitions. Word has length 69 [2022-01-17 23:30:48,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:48,545 INFO L470 AbstractCegarLoop]: Abstraction has 330 states and 615 transitions. [2022-01-17 23:30:48,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 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) [2022-01-17 23:30:48,546 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 615 transitions. [2022-01-17 23:30:48,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-17 23:30:48,547 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:48,548 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:48,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-17 23:30:48,548 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-17 23:30:48,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:48,549 INFO L85 PathProgramCache]: Analyzing trace with hash 88002593, now seen corresponding path program 1 times [2022-01-17 23:30:48,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:48,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195959485] [2022-01-17 23:30:48,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:48,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:48,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:48,664 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:48,665 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:48,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195959485] [2022-01-17 23:30:48,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195959485] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-17 23:30:48,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1043067877] [2022-01-17 23:30:48,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:48,666 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-17 23:30:48,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-17 23:30:48,668 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-17 23:30:48,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-17 23:30:48,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:48,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-17 23:30:48,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-17 23:30:48,989 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:48,989 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-17 23:30:49,126 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:49,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1043067877] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-17 23:30:49,127 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-17 23:30:49,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-01-17 23:30:49,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545561906] [2022-01-17 23:30:49,127 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-17 23:30:49,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-17 23:30:49,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:49,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-17 23:30:49,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-01-17 23:30:49,129 INFO L87 Difference]: Start difference. First operand 330 states and 615 transitions. Second operand has 10 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:49,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:49,202 INFO L93 Difference]: Finished difference Result 634 states and 1223 transitions. [2022-01-17 23:30:49,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-17 23:30:49,203 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 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 77 [2022-01-17 23:30:49,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:49,206 INFO L225 Difference]: With dead ends: 634 [2022-01-17 23:30:49,206 INFO L226 Difference]: Without dead ends: 634 [2022-01-17 23:30:49,206 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-01-17 23:30:49,213 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 303 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:49,214 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [303 Valid, 518 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-17 23:30:49,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2022-01-17 23:30:49,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 634. [2022-01-17 23:30:49,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 634 states, 633 states have (on average 1.9320695102685623) internal successors, (1223), 633 states have internal predecessors, (1223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:49,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 1223 transitions. [2022-01-17 23:30:49,235 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 1223 transitions. Word has length 77 [2022-01-17 23:30:49,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:49,236 INFO L470 AbstractCegarLoop]: Abstraction has 634 states and 1223 transitions. [2022-01-17 23:30:49,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:49,237 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 1223 transitions. [2022-01-17 23:30:49,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-01-17 23:30:49,238 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:49,239 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:49,263 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-01-17 23:30:49,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-17 23:30:49,463 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-17 23:30:49,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:49,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1150192967, now seen corresponding path program 2 times [2022-01-17 23:30:49,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:49,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197963781] [2022-01-17 23:30:49,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:49,464 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:49,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:49,532 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-01-17 23:30:49,533 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:49,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197963781] [2022-01-17 23:30:49,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197963781] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:49,533 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:49,533 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-17 23:30:49,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224058332] [2022-01-17 23:30:49,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:49,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-17 23:30:49,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:49,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-17 23:30:49,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-17 23:30:49,535 INFO L87 Difference]: Start difference. First operand 634 states and 1223 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:49,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:49,553 INFO L93 Difference]: Finished difference Result 580 states and 1088 transitions. [2022-01-17 23:30:49,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-17 23:30:49,553 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 93 [2022-01-17 23:30:49,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:49,556 INFO L225 Difference]: With dead ends: 580 [2022-01-17 23:30:49,556 INFO L226 Difference]: Without dead ends: 580 [2022-01-17 23:30:49,557 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-17 23:30:49,557 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 21 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:49,558 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 152 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-17 23:30:49,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2022-01-17 23:30:49,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2022-01-17 23:30:49,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 579 states have (on average 1.8791018998272884) internal successors, (1088), 579 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:49,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 1088 transitions. [2022-01-17 23:30:49,572 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 1088 transitions. Word has length 93 [2022-01-17 23:30:49,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:49,572 INFO L470 AbstractCegarLoop]: Abstraction has 580 states and 1088 transitions. [2022-01-17 23:30:49,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:49,573 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 1088 transitions. [2022-01-17 23:30:49,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-01-17 23:30:49,574 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:49,574 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:49,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-17 23:30:49,575 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-17 23:30:49,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:49,575 INFO L85 PathProgramCache]: Analyzing trace with hash 746770257, now seen corresponding path program 3 times [2022-01-17 23:30:49,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:49,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783313736] [2022-01-17 23:30:49,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:49,576 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:49,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:49,654 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-01-17 23:30:49,654 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:49,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783313736] [2022-01-17 23:30:49,654 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783313736] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-17 23:30:49,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1303032560] [2022-01-17 23:30:49,655 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-17 23:30:49,655 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-17 23:30:49,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-17 23:30:49,656 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-17 23:30:49,657 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-17 23:30:49,740 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-01-17 23:30:49,740 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-17 23:30:49,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-17 23:30:49,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-17 23:30:49,933 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-01-17 23:30:49,934 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-17 23:30:50,104 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-01-17 23:30:50,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1303032560] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-17 23:30:50,105 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-17 23:30:50,105 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-01-17 23:30:50,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62495673] [2022-01-17 23:30:50,105 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-17 23:30:50,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-17 23:30:50,106 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:50,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-17 23:30:50,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-01-17 23:30:50,107 INFO L87 Difference]: Start difference. First operand 580 states and 1088 transitions. Second operand has 10 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:50,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:50,205 INFO L93 Difference]: Finished difference Result 1154 states and 2182 transitions. [2022-01-17 23:30:50,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-17 23:30:50,205 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 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 93 [2022-01-17 23:30:50,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:50,210 INFO L225 Difference]: With dead ends: 1154 [2022-01-17 23:30:50,211 INFO L226 Difference]: Without dead ends: 1154 [2022-01-17 23:30:50,211 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-01-17 23:30:50,212 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 171 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:50,212 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 572 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-17 23:30:50,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1154 states. [2022-01-17 23:30:50,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1154 to 1154. [2022-01-17 23:30:50,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1154 states, 1153 states have (on average 1.8924544666088465) internal successors, (2182), 1153 states have internal predecessors, (2182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:50,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1154 states to 1154 states and 2182 transitions. [2022-01-17 23:30:50,237 INFO L78 Accepts]: Start accepts. Automaton has 1154 states and 2182 transitions. Word has length 93 [2022-01-17 23:30:50,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:50,242 INFO L470 AbstractCegarLoop]: Abstraction has 1154 states and 2182 transitions. [2022-01-17 23:30:50,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:50,242 INFO L276 IsEmpty]: Start isEmpty. Operand 1154 states and 2182 transitions. [2022-01-17 23:30:50,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-01-17 23:30:50,245 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:50,245 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:50,274 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-17 23:30:50,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-01-17 23:30:50,460 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-17 23:30:50,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:50,460 INFO L85 PathProgramCache]: Analyzing trace with hash -27559221, now seen corresponding path program 4 times [2022-01-17 23:30:50,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:50,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047877763] [2022-01-17 23:30:50,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:50,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:50,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:50,560 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 11 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:50,561 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:50,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047877763] [2022-01-17 23:30:50,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047877763] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-17 23:30:50,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1573104021] [2022-01-17 23:30:50,561 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-17 23:30:50,561 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-17 23:30:50,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-17 23:30:50,562 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-17 23:30:50,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-17 23:30:50,656 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-17 23:30:50,657 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-17 23:30:50,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-17 23:30:50,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-17 23:30:50,847 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 11 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:50,848 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-17 23:30:51,074 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 11 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:51,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1573104021] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-17 23:30:51,074 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-17 23:30:51,074 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-01-17 23:30:51,075 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648419699] [2022-01-17 23:30:51,075 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-17 23:30:51,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:30:51,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:51,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:30:51,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:30:51,076 INFO L87 Difference]: Start difference. First operand 1154 states and 2182 transitions. Second operand has 18 states, 18 states have (on average 10.61111111111111) internal successors, (191), 18 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:51,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:51,255 INFO L93 Difference]: Finished difference Result 2302 states and 4370 transitions. [2022-01-17 23:30:51,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-17 23:30:51,256 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.61111111111111) internal successors, (191), 18 states have internal predecessors, (191), 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 115 [2022-01-17 23:30:51,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:51,265 INFO L225 Difference]: With dead ends: 2302 [2022-01-17 23:30:51,265 INFO L226 Difference]: Without dead ends: 2302 [2022-01-17 23:30:51,266 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=280, Invalid=590, Unknown=0, NotChecked=0, Total=870 [2022-01-17 23:30:51,267 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 680 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 680 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:51,267 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [680 Valid, 615 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-17 23:30:51,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2302 states. [2022-01-17 23:30:51,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2302 to 2302. [2022-01-17 23:30:51,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2302 states, 2301 states have (on average 1.899174272055628) internal successors, (4370), 2301 states have internal predecessors, (4370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:51,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2302 states to 2302 states and 4370 transitions. [2022-01-17 23:30:51,310 INFO L78 Accepts]: Start accepts. Automaton has 2302 states and 4370 transitions. Word has length 115 [2022-01-17 23:30:51,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:51,310 INFO L470 AbstractCegarLoop]: Abstraction has 2302 states and 4370 transitions. [2022-01-17 23:30:51,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.61111111111111) internal successors, (191), 18 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:51,311 INFO L276 IsEmpty]: Start isEmpty. Operand 2302 states and 4370 transitions. [2022-01-17 23:30:51,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-01-17 23:30:51,317 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:51,317 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:51,343 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-01-17 23:30:51,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-17 23:30:51,543 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-17 23:30:51,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:51,544 INFO L85 PathProgramCache]: Analyzing trace with hash -617723337, now seen corresponding path program 5 times [2022-01-17 23:30:51,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:51,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147907771] [2022-01-17 23:30:51,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:51,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:51,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:51,639 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 148 proven. 60 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-01-17 23:30:51,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:51,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147907771] [2022-01-17 23:30:51,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147907771] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-17 23:30:51,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1972121352] [2022-01-17 23:30:51,639 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-01-17 23:30:51,639 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-17 23:30:51,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-17 23:30:51,641 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-17 23:30:51,670 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-17 23:30:51,741 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2022-01-17 23:30:51,741 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-17 23:30:51,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-17 23:30:51,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-17 23:30:51,977 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 148 proven. 60 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-01-17 23:30:51,977 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-17 23:30:52,241 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 148 proven. 60 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-01-17 23:30:52,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1972121352] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-17 23:30:52,242 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-17 23:30:52,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-01-17 23:30:52,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571332157] [2022-01-17 23:30:52,243 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-17 23:30:52,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:30:52,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:52,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:30:52,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:30:52,244 INFO L87 Difference]: Start difference. First operand 2302 states and 4370 transitions. Second operand has 18 states, 18 states have (on average 11.38888888888889) internal successors, (205), 18 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:52,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:52,436 INFO L93 Difference]: Finished difference Result 4518 states and 8550 transitions. [2022-01-17 23:30:52,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-17 23:30:52,436 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 11.38888888888889) internal successors, (205), 18 states have internal predecessors, (205), 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 159 [2022-01-17 23:30:52,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:52,452 INFO L225 Difference]: With dead ends: 4518 [2022-01-17 23:30:52,452 INFO L226 Difference]: Without dead ends: 4518 [2022-01-17 23:30:52,453 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 321 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=280, Invalid=590, Unknown=0, NotChecked=0, Total=870 [2022-01-17 23:30:52,453 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 810 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 810 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:52,453 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [810 Valid, 750 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-17 23:30:52,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4518 states. [2022-01-17 23:30:52,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4518 to 4518. [2022-01-17 23:30:52,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4518 states, 4517 states have (on average 1.8928492362187292) internal successors, (8550), 4517 states have internal predecessors, (8550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:52,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4518 states to 4518 states and 8550 transitions. [2022-01-17 23:30:52,555 INFO L78 Accepts]: Start accepts. Automaton has 4518 states and 8550 transitions. Word has length 159 [2022-01-17 23:30:52,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:52,556 INFO L470 AbstractCegarLoop]: Abstraction has 4518 states and 8550 transitions. [2022-01-17 23:30:52,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 11.38888888888889) internal successors, (205), 18 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:52,556 INFO L276 IsEmpty]: Start isEmpty. Operand 4518 states and 8550 transitions. [2022-01-17 23:30:52,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-01-17 23:30:52,566 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:52,566 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:52,593 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-17 23:30:52,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-17 23:30:52,779 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-17 23:30:52,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:52,780 INFO L85 PathProgramCache]: Analyzing trace with hash -695670005, now seen corresponding path program 6 times [2022-01-17 23:30:52,780 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:52,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40743092] [2022-01-17 23:30:52,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:52,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:52,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:52,983 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 31 proven. 382 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:52,984 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:52,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40743092] [2022-01-17 23:30:52,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40743092] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-17 23:30:52,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [61663847] [2022-01-17 23:30:52,984 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-01-17 23:30:52,984 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-17 23:30:52,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-17 23:30:52,986 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-17 23:30:52,987 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-17 23:30:53,137 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2022-01-17 23:30:53,137 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-17 23:30:53,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 16 conjunts are in the unsatisfiable core [2022-01-17 23:30:53,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-17 23:30:53,483 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 31 proven. 382 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:53,483 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-17 23:30:54,007 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 31 proven. 382 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:54,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [61663847] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-17 23:30:54,007 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-17 23:30:54,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-01-17 23:30:54,007 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053666389] [2022-01-17 23:30:54,008 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-17 23:30:54,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-17 23:30:54,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:54,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-17 23:30:54,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-01-17 23:30:54,010 INFO L87 Difference]: Start difference. First operand 4518 states and 8550 transitions. Second operand has 34 states, 34 states have (on average 10.088235294117647) internal successors, (343), 34 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:54,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:54,626 INFO L93 Difference]: Finished difference Result 9054 states and 17118 transitions. [2022-01-17 23:30:54,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-17 23:30:54,627 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 10.088235294117647) internal successors, (343), 34 states have internal predecessors, (343), 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 191 [2022-01-17 23:30:54,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:54,664 INFO L225 Difference]: With dead ends: 9054 [2022-01-17 23:30:54,664 INFO L226 Difference]: Without dead ends: 9054 [2022-01-17 23:30:54,665 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 827 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=1192, Invalid=2590, Unknown=0, NotChecked=0, Total=3782 [2022-01-17 23:30:54,666 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 1871 mSDsluCounter, 1021 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1871 SdHoareTripleChecker+Valid, 1114 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:54,666 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1871 Valid, 1114 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-17 23:30:54,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9054 states. [2022-01-17 23:30:54,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9054 to 9054. [2022-01-17 23:30:54,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9054 states, 9053 states have (on average 1.8908649066607754) internal successors, (17118), 9053 states have internal predecessors, (17118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:54,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9054 states to 9054 states and 17118 transitions. [2022-01-17 23:30:54,888 INFO L78 Accepts]: Start accepts. Automaton has 9054 states and 17118 transitions. Word has length 191 [2022-01-17 23:30:54,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:54,889 INFO L470 AbstractCegarLoop]: Abstraction has 9054 states and 17118 transitions. [2022-01-17 23:30:54,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 10.088235294117647) internal successors, (343), 34 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:54,889 INFO L276 IsEmpty]: Start isEmpty. Operand 9054 states and 17118 transitions. [2022-01-17 23:30:54,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2022-01-17 23:30:54,910 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:54,910 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:54,934 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-01-17 23:30:55,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-17 23:30:55,131 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-17 23:30:55,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:55,133 INFO L85 PathProgramCache]: Analyzing trace with hash 447962103, now seen corresponding path program 7 times [2022-01-17 23:30:55,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:55,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352845233] [2022-01-17 23:30:55,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:55,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:55,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:55,354 INFO L134 CoverageAnalysis]: Checked inductivity of 1345 backedges. 652 proven. 406 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2022-01-17 23:30:55,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:55,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352845233] [2022-01-17 23:30:55,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352845233] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-17 23:30:55,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1314934919] [2022-01-17 23:30:55,354 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-01-17 23:30:55,355 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-17 23:30:55,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-17 23:30:55,356 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-17 23:30:55,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-17 23:30:55,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:55,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 676 conjuncts, 16 conjunts are in the unsatisfiable core [2022-01-17 23:30:55,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-17 23:30:55,940 INFO L134 CoverageAnalysis]: Checked inductivity of 1345 backedges. 652 proven. 406 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2022-01-17 23:30:55,940 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-17 23:30:56,581 INFO L134 CoverageAnalysis]: Checked inductivity of 1345 backedges. 652 proven. 406 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2022-01-17 23:30:56,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1314934919] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-17 23:30:56,581 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-17 23:30:56,581 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-01-17 23:30:56,581 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255275925] [2022-01-17 23:30:56,582 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-17 23:30:56,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-17 23:30:56,582 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:56,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-17 23:30:56,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-01-17 23:30:56,584 INFO L87 Difference]: Start difference. First operand 9054 states and 17118 transitions. Second operand has 34 states, 34 states have (on average 10.5) internal successors, (357), 34 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:57,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:57,279 INFO L93 Difference]: Finished difference Result 17966 states and 33862 transitions. [2022-01-17 23:30:57,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-17 23:30:57,279 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 10.5) internal successors, (357), 34 states have internal predecessors, (357), 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 279 [2022-01-17 23:30:57,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:57,328 INFO L225 Difference]: With dead ends: 17966 [2022-01-17 23:30:57,328 INFO L226 Difference]: Without dead ends: 17966 [2022-01-17 23:30:57,329 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 629 GetRequests, 569 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 827 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1192, Invalid=2590, Unknown=0, NotChecked=0, Total=3782 [2022-01-17 23:30:57,330 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 2523 mSDsluCounter, 1065 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2523 SdHoareTripleChecker+Valid, 1161 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:57,330 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2523 Valid, 1161 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-17 23:30:57,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17966 states. [2022-01-17 23:30:57,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17966 to 17966. [2022-01-17 23:30:57,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17966 states, 17965 states have (on average 1.8848872808238242) internal successors, (33862), 17965 states have internal predecessors, (33862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:57,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17966 states to 17966 states and 33862 transitions. [2022-01-17 23:30:57,726 INFO L78 Accepts]: Start accepts. Automaton has 17966 states and 33862 transitions. Word has length 279 [2022-01-17 23:30:57,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:57,727 INFO L470 AbstractCegarLoop]: Abstraction has 17966 states and 33862 transitions. [2022-01-17 23:30:57,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 10.5) internal successors, (357), 34 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:57,728 INFO L276 IsEmpty]: Start isEmpty. Operand 17966 states and 33862 transitions. [2022-01-17 23:30:57,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2022-01-17 23:30:57,775 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:57,775 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:57,802 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-01-17 23:30:57,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-17 23:30:58,000 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-17 23:30:58,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:58,000 INFO L85 PathProgramCache]: Analyzing trace with hash 970632075, now seen corresponding path program 8 times [2022-01-17 23:30:58,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:58,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898566596] [2022-01-17 23:30:58,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:58,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:58,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:58,593 INFO L134 CoverageAnalysis]: Checked inductivity of 2025 backedges. 71 proven. 1954 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:58,593 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:58,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898566596] [2022-01-17 23:30:58,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898566596] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-17 23:30:58,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1391115143] [2022-01-17 23:30:58,594 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-17 23:30:58,594 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-17 23:30:58,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-17 23:30:58,595 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-17 23:30:58,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-01-17 23:30:58,803 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-17 23:30:58,803 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-17 23:30:58,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 844 conjuncts, 32 conjunts are in the unsatisfiable core [2022-01-17 23:30:58,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-17 23:30:59,990 INFO L134 CoverageAnalysis]: Checked inductivity of 2025 backedges. 57 proven. 1968 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:59,991 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-17 23:31:00,849 INFO L134 CoverageAnalysis]: Checked inductivity of 2025 backedges. 57 proven. 1968 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:00,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1391115143] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-17 23:31:00,849 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-17 23:31:00,850 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 72 [2022-01-17 23:31:00,850 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917020290] [2022-01-17 23:31:00,850 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-17 23:31:00,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2022-01-17 23:31:00,851 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:00,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2022-01-17 23:31:00,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=727, Invalid=4385, Unknown=0, NotChecked=0, Total=5112 [2022-01-17 23:31:00,853 INFO L87 Difference]: Start difference. First operand 17966 states and 33862 transitions. Second operand has 72 states, 72 states have (on average 9.972222222222221) internal successors, (718), 72 states have internal predecessors, (718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:37:31,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:37:31,112 INFO L93 Difference]: Finished difference Result 26156 states and 49207 transitions. [2022-01-17 23:37:31,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2774 states. [2022-01-17 23:37:31,113 INFO L78 Accepts]: Start accepts. Automaton has has 72 states, 72 states have (on average 9.972222222222221) internal successors, (718), 72 states have internal predecessors, (718), 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 343 [2022-01-17 23:37:31,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:37:31,192 INFO L225 Difference]: With dead ends: 26156 [2022-01-17 23:37:31,193 INFO L226 Difference]: Without dead ends: 26156 [2022-01-17 23:37:31,946 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4449 GetRequests, 1642 SyntacticMatches, 1 SemanticMatches, 2806 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4086993 ImplicationChecksByTransitivity, 370.1s TimeCoverageRelationStatistics Valid=1304691, Invalid=6577365, Unknown=0, NotChecked=0, Total=7882056 [2022-01-17 23:37:31,947 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 49604 mSDsluCounter, 2693 mSDsCounter, 0 mSdLazyCounter, 907 mSolverCounterSat, 4948 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49604 SdHoareTripleChecker+Valid, 2794 SdHoareTripleChecker+Invalid, 5855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4948 IncrementalHoareTripleChecker+Valid, 907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:37:31,947 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49604 Valid, 2794 Invalid, 5855 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4948 Valid, 907 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-01-17 23:37:31,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26156 states. [2022-01-17 23:37:32,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26156 to 25013. [2022-01-17 23:37:32,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25013 states, 25012 states have (on average 1.8831360946745561) internal successors, (47101), 25012 states have internal predecessors, (47101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:37:32,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25013 states to 25013 states and 47101 transitions. [2022-01-17 23:37:32,388 INFO L78 Accepts]: Start accepts. Automaton has 25013 states and 47101 transitions. Word has length 343 [2022-01-17 23:37:32,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:37:32,389 INFO L470 AbstractCegarLoop]: Abstraction has 25013 states and 47101 transitions. [2022-01-17 23:37:32,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 72 states have (on average 9.972222222222221) internal successors, (718), 72 states have internal predecessors, (718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:37:32,390 INFO L276 IsEmpty]: Start isEmpty. Operand 25013 states and 47101 transitions. [2022-01-17 23:37:32,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2022-01-17 23:37:32,447 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:37:32,447 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:37:32,475 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-01-17 23:37:32,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-17 23:37:32,663 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-17 23:37:32,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:37:32,664 INFO L85 PathProgramCache]: Analyzing trace with hash -453903054, now seen corresponding path program 9 times [2022-01-17 23:37:32,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:37:32,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104261801] [2022-01-17 23:37:32,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:37:32,664 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:37:32,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:37:33,472 INFO L134 CoverageAnalysis]: Checked inductivity of 2876 backedges. 572 proven. 2236 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2022-01-17 23:37:33,473 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:37:33,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104261801] [2022-01-17 23:37:33,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104261801] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-17 23:37:33,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684753237] [2022-01-17 23:37:33,473 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-17 23:37:33,473 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-17 23:37:33,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-17 23:37:33,474 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-17 23:37:33,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-01-17 23:37:33,954 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 17 check-sat command(s) [2022-01-17 23:37:33,955 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-17 23:37:33,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 975 conjuncts, 34 conjunts are in the unsatisfiable core [2022-01-17 23:37:33,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-17 23:37:34,585 INFO L134 CoverageAnalysis]: Checked inductivity of 2876 backedges. 572 proven. 2236 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2022-01-17 23:37:34,586 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-17 23:37:35,252 INFO L134 CoverageAnalysis]: Checked inductivity of 2876 backedges. 572 proven. 2236 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2022-01-17 23:37:35,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [684753237] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-17 23:37:35,252 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-17 23:37:35,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35, 35] total 43 [2022-01-17 23:37:35,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360644512] [2022-01-17 23:37:35,252 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-17 23:37:35,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-01-17 23:37:35,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:37:35,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-01-17 23:37:35,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=483, Invalid=1323, Unknown=0, NotChecked=0, Total=1806 [2022-01-17 23:37:35,254 INFO L87 Difference]: Start difference. First operand 25013 states and 47101 transitions. Second operand has 43 states, 43 states have (on average 10.372093023255815) internal successors, (446), 43 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:37:36,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:37:36,251 INFO L93 Difference]: Finished difference Result 30921 states and 58197 transitions. [2022-01-17 23:37:36,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-01-17 23:37:36,255 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 10.372093023255815) internal successors, (446), 43 states have internal predecessors, (446), 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 394 [2022-01-17 23:37:36,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:37:36,313 INFO L225 Difference]: With dead ends: 30921 [2022-01-17 23:37:36,313 INFO L226 Difference]: Without dead ends: 30921 [2022-01-17 23:37:36,314 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 859 GetRequests, 779 SyntacticMatches, 1 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1261 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=2044, Invalid=4436, Unknown=0, NotChecked=0, Total=6480 [2022-01-17 23:37:36,315 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 2562 mSDsluCounter, 1277 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2562 SdHoareTripleChecker+Valid, 1369 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-17 23:37:36,315 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2562 Valid, 1369 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-17 23:37:36,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30921 states. [2022-01-17 23:37:36,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30921 to 30921. [2022-01-17 23:37:36,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30921 states, 30920 states have (on average 1.8821798188874515) internal successors, (58197), 30920 states have internal predecessors, (58197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:37:36,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30921 states to 30921 states and 58197 transitions. [2022-01-17 23:37:36,815 INFO L78 Accepts]: Start accepts. Automaton has 30921 states and 58197 transitions. Word has length 394 [2022-01-17 23:37:36,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:37:36,816 INFO L470 AbstractCegarLoop]: Abstraction has 30921 states and 58197 transitions. [2022-01-17 23:37:36,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 10.372093023255815) internal successors, (446), 43 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:37:36,816 INFO L276 IsEmpty]: Start isEmpty. Operand 30921 states and 58197 transitions. [2022-01-17 23:37:36,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-01-17 23:37:36,983 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:37:36,984 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:37:37,007 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-01-17 23:37:37,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-01-17 23:37:37,184 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-17 23:37:37,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:37:37,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1784322982, now seen corresponding path program 10 times [2022-01-17 23:37:37,185 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:37:37,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977338588] [2022-01-17 23:37:37,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:37:37,185 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:37:37,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:37:40,106 INFO L134 CoverageAnalysis]: Checked inductivity of 3650 backedges. 0 proven. 3650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:37:40,106 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:37:40,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977338588] [2022-01-17 23:37:40,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977338588] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-17 23:37:40,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1518383544] [2022-01-17 23:37:40,107 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-17 23:37:40,107 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-17 23:37:40,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-17 23:37:40,108 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-17 23:37:40,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-01-17 23:37:40,401 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-17 23:37:40,401 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-17 23:37:40,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 1079 conjuncts, 165 conjunts are in the unsatisfiable core [2022-01-17 23:37:40,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-17 23:37:42,068 INFO L134 CoverageAnalysis]: Checked inductivity of 3650 backedges. 0 proven. 3650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:37:42,069 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-17 23:37:43,719 INFO L134 CoverageAnalysis]: Checked inductivity of 3650 backedges. 0 proven. 3650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:37:43,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1518383544] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-17 23:37:43,719 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-17 23:37:43,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [85, 85, 85] total 87 [2022-01-17 23:37:43,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976414198] [2022-01-17 23:37:43,720 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-17 23:37:43,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 87 states [2022-01-17 23:37:43,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:37:43,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2022-01-17 23:37:43,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=7309, Unknown=0, NotChecked=0, Total=7482 [2022-01-17 23:37:43,722 INFO L87 Difference]: Start difference. First operand 30921 states and 58197 transitions. Second operand has 87 states, 87 states have (on average 5.080459770114943) internal successors, (442), 87 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:39:05,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:39:05,453 INFO L93 Difference]: Finished difference Result 764550 states and 1465032 transitions. [2022-01-17 23:39:05,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 981 states. [2022-01-17 23:39:05,453 INFO L78 Accepts]: Start accepts. Automaton has has 87 states, 87 states have (on average 5.080459770114943) internal successors, (442), 87 states have internal predecessors, (442), 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 438 [2022-01-17 23:39:05,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:39:07,568 INFO L225 Difference]: With dead ends: 764550 [2022-01-17 23:39:07,568 INFO L226 Difference]: Without dead ends: 764290 [2022-01-17 23:39:07,637 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1858 GetRequests, 868 SyntacticMatches, 6 SemanticMatches, 984 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 405331 ImplicationChecksByTransitivity, 33.0s TimeCoverageRelationStatistics Valid=3949, Invalid=967261, Unknown=0, NotChecked=0, Total=971210 [2022-01-17 23:39:07,637 INFO L933 BasicCegarLoop]: 13882 mSDtfsCounter, 16494 mSDsluCounter, 1124995 mSDsCounter, 0 mSdLazyCounter, 154652 mSolverCounterSat, 977 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16494 SdHoareTripleChecker+Valid, 1137193 SdHoareTripleChecker+Invalid, 155629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.9s SdHoareTripleChecker+Time, 977 IncrementalHoareTripleChecker+Valid, 154652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.0s IncrementalHoareTripleChecker+Time [2022-01-17 23:39:07,637 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16494 Valid, 1137193 Invalid, 155629 Unknown, 0 Unchecked, 0.9s Time], IncrementalHoareTripleChecker [977 Valid, 154652 Invalid, 0 Unknown, 0 Unchecked, 44.0s Time] [2022-01-17 23:39:08,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764290 states. [2022-01-17 23:39:13,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764290 to 32595. [2022-01-17 23:39:13,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32595 states, 32594 states have (on average 1.8841197766460085) internal successors, (61411), 32594 states have internal predecessors, (61411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:39:13,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32595 states to 32595 states and 61411 transitions. [2022-01-17 23:39:13,661 INFO L78 Accepts]: Start accepts. Automaton has 32595 states and 61411 transitions. Word has length 438 [2022-01-17 23:39:13,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:39:13,662 INFO L470 AbstractCegarLoop]: Abstraction has 32595 states and 61411 transitions. [2022-01-17 23:39:13,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 87 states, 87 states have (on average 5.080459770114943) internal successors, (442), 87 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:39:13,662 INFO L276 IsEmpty]: Start isEmpty. Operand 32595 states and 61411 transitions. [2022-01-17 23:39:13,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-01-17 23:39:13,747 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:39:13,747 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:39:13,774 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-01-17 23:39:13,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-01-17 23:39:13,959 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-17 23:39:13,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:39:13,960 INFO L85 PathProgramCache]: Analyzing trace with hash -2051785962, now seen corresponding path program 11 times [2022-01-17 23:39:13,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:39:13,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412510663] [2022-01-17 23:39:13,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:39:13,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:39:14,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:39:17,017 INFO L134 CoverageAnalysis]: Checked inductivity of 3650 backedges. 0 proven. 3650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:39:17,018 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:39:17,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412510663] [2022-01-17 23:39:17,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412510663] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-17 23:39:17,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1162831638] [2022-01-17 23:39:17,018 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-01-17 23:39:17,018 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-17 23:39:17,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-17 23:39:17,019 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) [2022-01-17 23:39:17,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-01-17 23:39:17,398 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 21 check-sat command(s) [2022-01-17 23:39:17,398 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-17 23:39:17,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 1079 conjuncts, 165 conjunts are in the unsatisfiable core [2022-01-17 23:39:17,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-17 23:39:18,956 INFO L134 CoverageAnalysis]: Checked inductivity of 3650 backedges. 0 proven. 3650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:39:18,956 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-17 23:39:20,422 INFO L134 CoverageAnalysis]: Checked inductivity of 3650 backedges. 0 proven. 3650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:39:20,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1162831638] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-17 23:39:20,422 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-17 23:39:20,423 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [85, 85, 85] total 87 [2022-01-17 23:39:20,423 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495015504] [2022-01-17 23:39:20,423 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-17 23:39:20,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 87 states [2022-01-17 23:39:20,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:39:20,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2022-01-17 23:39:20,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=7309, Unknown=0, NotChecked=0, Total=7482 [2022-01-17 23:39:20,425 INFO L87 Difference]: Start difference. First operand 32595 states and 61411 transitions. Second operand has 87 states, 87 states have (on average 5.080459770114943) internal successors, (442), 87 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:40:40,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:40:40,050 INFO L93 Difference]: Finished difference Result 746382 states and 1431433 transitions. [2022-01-17 23:40:40,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 938 states. [2022-01-17 23:40:40,051 INFO L78 Accepts]: Start accepts. Automaton has has 87 states, 87 states have (on average 5.080459770114943) internal successors, (442), 87 states have internal predecessors, (442), 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 438 [2022-01-17 23:40:40,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:40:42,117 INFO L225 Difference]: With dead ends: 746382 [2022-01-17 23:40:42,117 INFO L226 Difference]: Without dead ends: 746369 [2022-01-17 23:40:42,332 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1816 GetRequests, 868 SyntacticMatches, 6 SemanticMatches, 942 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368506 ImplicationChecksByTransitivity, 31.8s TimeCoverageRelationStatistics Valid=3610, Invalid=886582, Unknown=0, NotChecked=0, Total=890192 [2022-01-17 23:40:42,333 INFO L933 BasicCegarLoop]: 13826 mSDtfsCounter, 16117 mSDsluCounter, 1147131 mSDsCounter, 0 mSdLazyCounter, 155287 mSolverCounterSat, 970 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16117 SdHoareTripleChecker+Valid, 1159315 SdHoareTripleChecker+Invalid, 156257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.1s SdHoareTripleChecker+Time, 970 IncrementalHoareTripleChecker+Valid, 155287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:40:42,333 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16117 Valid, 1159315 Invalid, 156257 Unknown, 0 Unchecked, 1.1s Time], IncrementalHoareTripleChecker [970 Valid, 155287 Invalid, 0 Unknown, 0 Unchecked, 43.5s Time] [2022-01-17 23:40:43,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746369 states. [2022-01-17 23:40:47,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746369 to 32679. [2022-01-17 23:40:47,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32679 states, 32678 states have (on average 1.8846624640430871) internal successors, (61587), 32678 states have internal predecessors, (61587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:40:47,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32679 states to 32679 states and 61587 transitions. [2022-01-17 23:40:47,565 INFO L78 Accepts]: Start accepts. Automaton has 32679 states and 61587 transitions. Word has length 438 [2022-01-17 23:40:47,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:40:47,567 INFO L470 AbstractCegarLoop]: Abstraction has 32679 states and 61587 transitions. [2022-01-17 23:40:47,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 87 states, 87 states have (on average 5.080459770114943) internal successors, (442), 87 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:40:47,567 INFO L276 IsEmpty]: Start isEmpty. Operand 32679 states and 61587 transitions. [2022-01-17 23:40:47,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-01-17 23:40:47,864 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:40:47,864 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:40:47,923 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-01-17 23:40:48,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-01-17 23:40:48,065 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-17 23:40:48,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:40:48,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1995053348, now seen corresponding path program 12 times [2022-01-17 23:40:48,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:40:48,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629225367] [2022-01-17 23:40:48,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:40:48,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:40:48,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:40:50,865 INFO L134 CoverageAnalysis]: Checked inductivity of 3650 backedges. 0 proven. 3650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:40:50,865 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:40:50,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629225367] [2022-01-17 23:40:50,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629225367] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-17 23:40:50,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [248583577] [2022-01-17 23:40:50,866 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-01-17 23:40:50,866 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-17 23:40:50,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-17 23:40:50,869 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) [2022-01-17 23:40:50,870 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-01-17 23:40:51,403 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 21 check-sat command(s) [2022-01-17 23:40:51,403 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-17 23:40:51,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 1079 conjuncts, 165 conjunts are in the unsatisfiable core [2022-01-17 23:40:51,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-17 23:40:52,795 INFO L134 CoverageAnalysis]: Checked inductivity of 3650 backedges. 0 proven. 3650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:40:52,795 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-17 23:40:54,195 INFO L134 CoverageAnalysis]: Checked inductivity of 3650 backedges. 0 proven. 3650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:40:54,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [248583577] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-17 23:40:54,196 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-17 23:40:54,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [85, 85, 85] total 87 [2022-01-17 23:40:54,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760163508] [2022-01-17 23:40:54,196 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-17 23:40:54,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 87 states [2022-01-17 23:40:54,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:40:54,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2022-01-17 23:40:54,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=7309, Unknown=0, NotChecked=0, Total=7482 [2022-01-17 23:40:54,199 INFO L87 Difference]: Start difference. First operand 32679 states and 61587 transitions. Second operand has 87 states, 87 states have (on average 5.080459770114943) internal successors, (442), 87 states have internal predecessors, (442), 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) Received shutdown request... [2022-01-17 23:41:45,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 638 states. [2022-01-17 23:41:45,848 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-17 23:41:45,849 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-17 23:41:45,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1560 GetRequests, 868 SyntacticMatches, 6 SemanticMatches, 686 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181504 ImplicationChecksByTransitivity, 22.3s TimeCoverageRelationStatistics Valid=2577, Invalid=470079, Unknown=0, NotChecked=0, Total=472656 [2022-01-17 23:41:45,855 INFO L933 BasicCegarLoop]: 9017 mSDtfsCounter, 9709 mSDsluCounter, 738515 mSDsCounter, 0 mSdLazyCounter, 101364 mSolverCounterSat, 668 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9709 SdHoareTripleChecker+Valid, 747489 SdHoareTripleChecker+Invalid, 102032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.5s SdHoareTripleChecker+Time, 668 IncrementalHoareTripleChecker+Valid, 101364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:41:45,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9709 Valid, 747489 Invalid, 102032 Unknown, 0 Unchecked, 0.5s Time], IncrementalHoareTripleChecker [668 Valid, 101364 Invalid, 0 Unknown, 0 Unchecked, 28.7s Time] [2022-01-17 23:41:45,856 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-01-17 23:41:45,875 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-01-17 23:41:46,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-01-17 23:41:46,058 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was constructing difference of abstraction (32679states) and FLOYD_HOARE automaton (currently 638 states, 87 states before enhancement),while ReachableStatesComputation was computing reachable states (269867 states constructed, input type IntersectNwa). [2022-01-17 23:41:46,059 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-01-17 23:41:46,061 INFO L732 BasicCegarLoop]: Path program histogram: [12, 1, 1, 1] [2022-01-17 23:41:46,063 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-17 23:41:46,063 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-17 23:41:46,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.01 11:41:46 BasicIcfg [2022-01-17 23:41:46,067 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-17 23:41:46,067 INFO L158 Benchmark]: Toolchain (without parser) took 659564.55ms. Allocated memory was 383.8MB in the beginning and 7.8GB in the end (delta: 7.5GB). Free memory was 327.5MB in the beginning and 4.6GB in the end (delta: -4.3GB). Peak memory consumption was 3.2GB. Max. memory is 16.0GB. [2022-01-17 23:41:46,067 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 383.8MB. Free memory is still 346.4MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-17 23:41:46,068 INFO L158 Benchmark]: CACSL2BoogieTranslator took 652.04ms. Allocated memory is still 383.8MB. Free memory was 327.3MB in the beginning and 327.5MB in the end (delta: -201.3kB). Peak memory consumption was 16.5MB. Max. memory is 16.0GB. [2022-01-17 23:41:46,068 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.57ms. Allocated memory is still 383.8MB. Free memory was 327.5MB in the beginning and 325.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-17 23:41:46,068 INFO L158 Benchmark]: Boogie Preprocessor took 20.32ms. Allocated memory is still 383.8MB. Free memory was 325.4MB in the beginning and 324.4MB in the end (delta: 995.8kB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-17 23:41:46,068 INFO L158 Benchmark]: RCFGBuilder took 352.49ms. Allocated memory is still 383.8MB. Free memory was 324.4MB in the beginning and 309.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2022-01-17 23:41:46,069 INFO L158 Benchmark]: TraceAbstraction took 658490.41ms. Allocated memory was 383.8MB in the beginning and 7.8GB in the end (delta: 7.5GB). Free memory was 308.7MB in the beginning and 4.6GB in the end (delta: -4.3GB). Peak memory consumption was 3.2GB. Max. memory is 16.0GB. [2022-01-17 23:41:46,070 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 383.8MB. Free memory is still 346.4MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 652.04ms. Allocated memory is still 383.8MB. Free memory was 327.3MB in the beginning and 327.5MB in the end (delta: -201.3kB). Peak memory consumption was 16.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 42.57ms. Allocated memory is still 383.8MB. Free memory was 327.5MB in the beginning and 325.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 20.32ms. Allocated memory is still 383.8MB. Free memory was 325.4MB in the beginning and 324.4MB in the end (delta: 995.8kB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 352.49ms. Allocated memory is still 383.8MB. Free memory was 324.4MB in the beginning and 309.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 658490.41ms. Allocated memory was 383.8MB in the beginning and 7.8GB in the end (delta: 7.5GB). Free memory was 308.7MB in the beginning and 4.6GB in the end (delta: -4.3GB). Peak memory consumption was 3.2GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 13]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (32679states) and FLOYD_HOARE automaton (currently 638 states, 87 states before enhancement),while ReachableStatesComputation was computing reachable states (269867 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 1343]: 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 (32679states) and FLOYD_HOARE automaton (currently 638 states, 87 states before enhancement),while ReachableStatesComputation was computing reachable states (269867 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 110 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 658.4s, OverallIterations: 15, TraceHistogramMax: 20, PathProgramHistogramMax: 12, EmptinessCheckTime: 0.7s, AutomataDifference: 611.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 100912 SdHoareTripleChecker+Valid, 119.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 100912 mSDsluCounter, 3053435 SdHoareTripleChecker+Invalid, 99.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3018963 mSDsCounter, 7763 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 412797 IncrementalHoareTripleChecker+Invalid, 420560 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7763 mSolverCounterUnsat, 37920 mSDtfsCounter, 412797 mSolverCounterSat, 2.6s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12563 GetRequests, 6843 SyntacticMatches, 20 SemanticMatches, 5700 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5045633 ImplicationChecksByTransitivity, 460.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32679occurred in iteration=14, InterpolantAutomatonStates: 4914, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 13.1s AutomataMinimizationTime, 14 MinimizatonAttempts, 1446768 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 26.6s InterpolantComputationTime, 6208 NumberOfCodeBlocks, 6112 NumberOfCodeBlocksAsserted, 96 NumberOfCheckSat, 9136 ConstructedInterpolants, 0 QuantifiedInterpolants, 36331 SizeOfPredicates, 232 NumberOfNonLiveVariables, 7047 ConjunctsInSsa, 617 ConjunctsInUnsatCore, 37 InterpolantComputations, 4 PerfectInterpolantSequences, 5776/53930 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