/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe017_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 17:55:42,500 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 17:55:42,501 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 17:55:42,549 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-15 17:55:42,550 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-15 17:55:42,551 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-15 17:55:42,552 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-15 17:55:42,553 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-15 17:55:42,555 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-15 17:55:42,563 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-15 17:55:42,564 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-15 17:55:42,565 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-15 17:55:42,565 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-15 17:55:42,566 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-15 17:55:42,566 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-15 17:55:42,567 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-15 17:55:42,568 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-15 17:55:42,569 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-15 17:55:42,570 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-15 17:55:42,572 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-15 17:55:42,574 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-15 17:55:42,575 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-15 17:55:42,575 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-15 17:55:42,576 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-15 17:55:42,578 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-15 17:55:42,585 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-15 17:55:42,585 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-15 17:55:42,586 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-15 17:55:42,586 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2022-03-15 17:55:42,604 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 17:55:42,604 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 17:55:42,605 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 17:55:42,605 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 17:55:42,605 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 17:55:42,606 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 17:55:42,606 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 17:55:42,606 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 17:55:42,606 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 17:55:42,606 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 17:55:42,606 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 17:55:42,606 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 17:55:42,607 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 17:55:42,607 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 17:55:42,607 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 17:55:42,607 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 17:55:42,607 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 17:55:42,607 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 17:55:42,607 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 17:55:42,607 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 17:55:42,608 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 17:55:42,608 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 17:55:42,608 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 17:55:42,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 17:55:42,608 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 17:55:42,608 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-15 17:55:42,608 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 17:55:42,608 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 17:55:42,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 17:55:42,609 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2022-03-15 17:55:42,609 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2022-03-15 17:55:42,609 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 17:55:42,609 INFO L138 SettingsManager]: * Interpolant automaton=MCR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 17:55:42,816 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 17:55:42,838 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 17:55:42,840 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 17:55:42,841 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-15 17:55:42,842 INFO L275 PluginConnector]: CDTParser initialized [2022-03-15 17:55:42,842 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe017_tso.i [2022-03-15 17:55:42,901 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c8e8ad90/447009e51efc4f1cac510d0c311610e1/FLAG8264b696c [2022-03-15 17:55:43,328 INFO L306 CDTParser]: Found 1 translation units. [2022-03-15 17:55:43,328 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe017_tso.i [2022-03-15 17:55:43,346 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c8e8ad90/447009e51efc4f1cac510d0c311610e1/FLAG8264b696c [2022-03-15 17:55:43,682 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c8e8ad90/447009e51efc4f1cac510d0c311610e1 [2022-03-15 17:55:43,685 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 17:55:43,686 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-15 17:55:43,687 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-15 17:55:43,689 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-15 17:55:43,692 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-15 17:55:43,693 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 05:55:43" (1/1) ... [2022-03-15 17:55:43,695 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e93952 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 05:55:43, skipping insertion in model container [2022-03-15 17:55:43,695 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 05:55:43" (1/1) ... [2022-03-15 17:55:43,701 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-15 17:55:43,750 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-15 17:55:43,913 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-wmm/safe017_tso.i[945,958] [2022-03-15 17:55:44,023 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 17:55:44,029 INFO L203 MainTranslator]: Completed pre-run [2022-03-15 17:55:44,038 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-wmm/safe017_tso.i[945,958] [2022-03-15 17:55:44,064 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 17:55:44,095 INFO L208 MainTranslator]: Completed translation [2022-03-15 17:55:44,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 05:55:44 WrapperNode [2022-03-15 17:55:44,095 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-15 17:55:44,096 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 17:55:44,097 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 17:55:44,097 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 17:55:44,103 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 05:55:44" (1/1) ... [2022-03-15 17:55:44,114 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 05:55:44" (1/1) ... [2022-03-15 17:55:44,136 INFO L137 Inliner]: procedures = 176, calls = 51, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 69 [2022-03-15 17:55:44,137 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 17:55:44,138 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 17:55:44,138 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 17:55:44,138 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 17:55:44,144 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 05:55:44" (1/1) ... [2022-03-15 17:55:44,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 05:55:44" (1/1) ... [2022-03-15 17:55:44,161 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 05:55:44" (1/1) ... [2022-03-15 17:55:44,162 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 05:55:44" (1/1) ... [2022-03-15 17:55:44,166 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 05:55:44" (1/1) ... [2022-03-15 17:55:44,167 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 05:55:44" (1/1) ... [2022-03-15 17:55:44,168 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 05:55:44" (1/1) ... [2022-03-15 17:55:44,170 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 17:55:44,170 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 17:55:44,171 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 17:55:44,171 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 17:55:44,181 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 05:55:44" (1/1) ... [2022-03-15 17:55:44,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 17:55:44,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 17:55:44,207 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-15 17:55:44,232 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-15 17:55:44,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-15 17:55:44,247 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-15 17:55:44,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-15 17:55:44,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-15 17:55:44,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-15 17:55:44,247 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-03-15 17:55:44,247 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-03-15 17:55:44,248 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-03-15 17:55:44,248 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-03-15 17:55:44,249 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-03-15 17:55:44,250 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-03-15 17:55:44,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-15 17:55:44,250 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-15 17:55:44,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 17:55:44,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 17:55:44,251 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-15 17:55:44,358 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 17:55:44,359 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 17:55:44,555 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 17:55:44,579 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 17:55:44,579 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-15 17:55:44,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 05:55:44 BoogieIcfgContainer [2022-03-15 17:55:44,581 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 17:55:44,583 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 17:55:44,583 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 17:55:44,586 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 17:55:44,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 05:55:43" (1/3) ... [2022-03-15 17:55:44,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b675425 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 05:55:44, skipping insertion in model container [2022-03-15 17:55:44,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 05:55:44" (2/3) ... [2022-03-15 17:55:44,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b675425 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 05:55:44, skipping insertion in model container [2022-03-15 17:55:44,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 05:55:44" (3/3) ... [2022-03-15 17:55:44,588 INFO L111 eAbstractionObserver]: Analyzing ICFG safe017_tso.i [2022-03-15 17:55:44,592 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 17:55:44,592 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-15 17:55:44,592 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-15 17:55:44,593 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 17:55:44,634 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:55:44,634 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:55:44,634 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:55:44,634 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:55:44,635 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:55:44,635 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:55:44,635 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:55:44,635 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:55:44,636 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:55:44,636 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:55:44,636 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:55:44,636 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:55:44,637 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:55:44,637 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:55:44,637 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:55:44,637 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:55:44,637 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:55:44,638 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:55:44,638 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:55:44,638 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:55:44,638 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:55:44,638 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:55:44,639 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:55:44,639 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:55:44,639 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:55:44,639 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:55:44,640 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:55:44,640 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:55:44,640 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:55:44,640 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:55:44,640 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:55:44,640 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:55:44,641 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:55:44,641 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:55:44,641 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:55:44,641 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:55:44,644 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:55:44,644 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:55:44,644 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:55:44,645 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:55:44,647 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:55:44,647 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:55:44,647 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:55:44,647 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:55:44,648 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:55:44,648 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:55:44,649 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:55:44,649 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:55:44,649 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-03-15 17:55:44,700 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 17:55:44,713 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=MCR, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, 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=true, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 17:55:44,713 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-15 17:55:44,731 INFO L126 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-03-15 17:55:44,737 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 89 transitions, 193 flow [2022-03-15 17:55:44,740 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 97 places, 89 transitions, 193 flow [2022-03-15 17:55:44,741 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 97 places, 89 transitions, 193 flow [2022-03-15 17:55:44,802 INFO L129 PetriNetUnfolder]: 2/86 cut-off events. [2022-03-15 17:55:44,802 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-03-15 17:55:44,807 INFO L84 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 86 events. 2/86 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 44 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2022-03-15 17:55:44,811 INFO L116 LiptonReduction]: Number of co-enabled transitions 1518 [2022-03-15 17:55:47,004 INFO L131 LiptonReduction]: Checked pairs total: 2571 [2022-03-15 17:55:47,005 INFO L133 LiptonReduction]: Total number of compositions: 82 [2022-03-15 17:55:47,012 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 55 flow [2022-03-15 17:55:47,048 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 178 states, 177 states have (on average 2.7231638418079096) internal successors, (482), 177 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:55:47,051 INFO L276 IsEmpty]: Start isEmpty. Operand has 178 states, 177 states have (on average 2.7231638418079096) internal successors, (482), 177 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:55:47,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-03-15 17:55:47,056 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:55:47,057 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 17:55:47,058 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 17:55:47,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:55:47,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1464478550, now seen corresponding path program 1 times [2022-03-15 17:55:47,074 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:55:47,074 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009162217] [2022-03-15 17:55:47,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:55:47,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:55:47,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:55:47,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:55:47,302 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:55:47,303 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009162217] [2022-03-15 17:55:47,304 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009162217] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:55:47,304 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:55:47,304 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-03-15 17:55:47,305 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2086783134] [2022-03-15 17:55:47,306 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 17:55:47,310 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 17:55:47,321 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2022-03-15 17:55:47,322 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 17:55:47,325 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 17:55:47,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 17:55:47,327 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:55:47,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 17:55:47,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 17:55:47,358 INFO L87 Difference]: Start difference. First operand has 178 states, 177 states have (on average 2.7231638418079096) internal successors, (482), 177 states have internal predecessors, (482), 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 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:55:47,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:55:47,419 INFO L93 Difference]: Finished difference Result 269 states and 676 transitions. [2022-03-15 17:55:47,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 17:55:47,421 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2022-03-15 17:55:47,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:55:47,433 INFO L225 Difference]: With dead ends: 269 [2022-03-15 17:55:47,433 INFO L226 Difference]: Without dead ends: 237 [2022-03-15 17:55:47,434 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 17:55:47,438 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 3 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 17:55:47,439 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 4 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 17:55:47,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2022-03-15 17:55:47,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 209. [2022-03-15 17:55:47,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 208 states have (on average 2.5288461538461537) internal successors, (526), 208 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:55:47,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 526 transitions. [2022-03-15 17:55:47,479 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 526 transitions. Word has length 8 [2022-03-15 17:55:47,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:55:47,480 INFO L470 AbstractCegarLoop]: Abstraction has 209 states and 526 transitions. [2022-03-15 17:55:47,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:55:47,480 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 526 transitions. [2022-03-15 17:55:47,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-03-15 17:55:47,481 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:55:47,481 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 17:55:47,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 17:55:47,482 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 17:55:47,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:55:47,482 INFO L85 PathProgramCache]: Analyzing trace with hash 2064226872, now seen corresponding path program 1 times [2022-03-15 17:55:47,483 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:55:47,483 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883845247] [2022-03-15 17:55:47,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:55:47,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:55:47,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:55:47,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:55:47,601 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:55:47,601 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883845247] [2022-03-15 17:55:47,601 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883845247] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:55:47,601 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:55:47,601 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-15 17:55:47,601 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1775718810] [2022-03-15 17:55:47,602 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 17:55:47,602 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 17:55:47,604 INFO L252 McrAutomatonBuilder]: Finished intersection with 15 states and 19 transitions. [2022-03-15 17:55:47,604 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 17:55:47,767 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [1150#(or (not (= 2 ~x~0)) (not (= 2 ~__unbuffered_p2_EAX~0)))] [2022-03-15 17:55:47,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 17:55:47,768 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:55:47,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 17:55:47,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 17:55:47,769 INFO L87 Difference]: Start difference. First operand 209 states and 526 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:55:47,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:55:47,821 INFO L93 Difference]: Finished difference Result 242 states and 577 transitions. [2022-03-15 17:55:47,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 17:55:47,821 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 9 [2022-03-15 17:55:47,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:55:47,823 INFO L225 Difference]: With dead ends: 242 [2022-03-15 17:55:47,823 INFO L226 Difference]: Without dead ends: 242 [2022-03-15 17:55:47,823 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 17:55:47,824 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 29 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 17:55:47,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 7 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 17:55:47,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2022-03-15 17:55:47,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 182. [2022-03-15 17:55:47,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 181 states have (on average 2.5138121546961325) internal successors, (455), 181 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:55:47,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 455 transitions. [2022-03-15 17:55:47,836 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 455 transitions. Word has length 9 [2022-03-15 17:55:47,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:55:47,837 INFO L470 AbstractCegarLoop]: Abstraction has 182 states and 455 transitions. [2022-03-15 17:55:47,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:55:47,837 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 455 transitions. [2022-03-15 17:55:47,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-03-15 17:55:47,838 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:55:47,838 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 17:55:47,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-15 17:55:47,838 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 17:55:47,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:55:47,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1845767547, now seen corresponding path program 1 times [2022-03-15 17:55:47,840 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:55:47,840 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372196] [2022-03-15 17:55:47,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:55:47,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:55:47,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:55:47,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:55:47,906 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:55:47,907 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372196] [2022-03-15 17:55:47,907 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372196] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:55:47,907 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:55:47,907 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-15 17:55:47,907 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [656746678] [2022-03-15 17:55:47,907 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 17:55:47,908 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 17:55:47,909 INFO L252 McrAutomatonBuilder]: Finished intersection with 11 states and 11 transitions. [2022-03-15 17:55:47,909 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 17:55:47,922 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [1761#(or (not (= 2 ~y~0)) (not (= 2 ~x~0)))] [2022-03-15 17:55:47,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 17:55:47,923 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:55:47,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 17:55:47,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 17:55:47,923 INFO L87 Difference]: Start difference. First operand 182 states and 455 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:55:47,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:55:47,965 INFO L93 Difference]: Finished difference Result 214 states and 504 transitions. [2022-03-15 17:55:47,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-15 17:55:47,965 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 9 [2022-03-15 17:55:47,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:55:47,967 INFO L225 Difference]: With dead ends: 214 [2022-03-15 17:55:47,967 INFO L226 Difference]: Without dead ends: 190 [2022-03-15 17:55:47,967 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 17:55:47,968 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 23 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 17:55:47,969 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 4 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 17:55:47,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-03-15 17:55:47,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 162. [2022-03-15 17:55:47,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 161 states have (on average 2.409937888198758) internal successors, (388), 161 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:55:47,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 388 transitions. [2022-03-15 17:55:47,978 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 388 transitions. Word has length 9 [2022-03-15 17:55:47,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:55:47,978 INFO L470 AbstractCegarLoop]: Abstraction has 162 states and 388 transitions. [2022-03-15 17:55:47,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:55:47,979 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 388 transitions. [2022-03-15 17:55:47,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-03-15 17:55:47,980 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:55:47,980 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 17:55:47,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-15 17:55:47,980 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 17:55:47,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:55:47,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1384217472, now seen corresponding path program 1 times [2022-03-15 17:55:47,981 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:55:47,982 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434050730] [2022-03-15 17:55:47,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:55:47,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:55:47,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:55:48,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:55:48,029 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:55:48,029 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434050730] [2022-03-15 17:55:48,030 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434050730] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:55:48,030 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:55:48,030 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-15 17:55:48,030 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1687926200] [2022-03-15 17:55:48,030 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 17:55:48,031 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 17:55:48,032 INFO L252 McrAutomatonBuilder]: Finished intersection with 13 states and 14 transitions. [2022-03-15 17:55:48,032 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 17:55:48,056 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 17:55:48,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-15 17:55:48,057 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:55:48,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-15 17:55:48,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-03-15 17:55:48,057 INFO L87 Difference]: Start difference. First operand 162 states and 388 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:55:48,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:55:48,091 INFO L93 Difference]: Finished difference Result 184 states and 433 transitions. [2022-03-15 17:55:48,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-15 17:55:48,091 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 10 [2022-03-15 17:55:48,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:55:48,092 INFO L225 Difference]: With dead ends: 184 [2022-03-15 17:55:48,092 INFO L226 Difference]: Without dead ends: 184 [2022-03-15 17:55:48,093 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-03-15 17:55:48,094 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 16 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 17:55:48,094 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 5 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 17:55:48,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2022-03-15 17:55:48,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 160. [2022-03-15 17:55:48,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 159 states have (on average 2.3962264150943398) internal successors, (381), 159 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:55:48,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 381 transitions. [2022-03-15 17:55:48,101 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 381 transitions. Word has length 10 [2022-03-15 17:55:48,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:55:48,102 INFO L470 AbstractCegarLoop]: Abstraction has 160 states and 381 transitions. [2022-03-15 17:55:48,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:55:48,102 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 381 transitions. [2022-03-15 17:55:48,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-03-15 17:55:48,103 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:55:48,103 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 17:55:48,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-15 17:55:48,103 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 17:55:48,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:55:48,104 INFO L85 PathProgramCache]: Analyzing trace with hash -554035826, now seen corresponding path program 1 times [2022-03-15 17:55:48,105 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:55:48,105 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758039963] [2022-03-15 17:55:48,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:55:48,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:55:48,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:55:48,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:55:48,169 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:55:48,170 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758039963] [2022-03-15 17:55:48,170 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758039963] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:55:48,170 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:55:48,170 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 17:55:48,170 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [715980038] [2022-03-15 17:55:48,170 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 17:55:48,171 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 17:55:48,173 INFO L252 McrAutomatonBuilder]: Finished intersection with 23 states and 35 transitions. [2022-03-15 17:55:48,174 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 17:55:48,339 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [2813#(or (not (= 2 ~x~0)) (not (= 2 ~__unbuffered_p2_EAX~0)))] [2022-03-15 17:55:48,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 17:55:48,340 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:55:48,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 17:55:48,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-03-15 17:55:48,341 INFO L87 Difference]: Start difference. First operand 160 states and 381 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:55:48,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:55:48,394 INFO L93 Difference]: Finished difference Result 240 states and 533 transitions. [2022-03-15 17:55:48,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 17:55:48,395 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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 11 [2022-03-15 17:55:48,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:55:48,398 INFO L225 Difference]: With dead ends: 240 [2022-03-15 17:55:48,398 INFO L226 Difference]: Without dead ends: 160 [2022-03-15 17:55:48,399 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2022-03-15 17:55:48,401 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 29 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 17:55:48,401 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 8 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 17:55:48,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-03-15 17:55:48,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 136. [2022-03-15 17:55:48,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 135 states have (on average 2.274074074074074) internal successors, (307), 135 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:55:48,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 307 transitions. [2022-03-15 17:55:48,413 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 307 transitions. Word has length 11 [2022-03-15 17:55:48,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:55:48,414 INFO L470 AbstractCegarLoop]: Abstraction has 136 states and 307 transitions. [2022-03-15 17:55:48,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:55:48,414 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 307 transitions. [2022-03-15 17:55:48,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-03-15 17:55:48,418 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:55:48,419 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 17:55:48,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-15 17:55:48,419 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 17:55:48,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:55:48,419 INFO L85 PathProgramCache]: Analyzing trace with hash -552918896, now seen corresponding path program 2 times [2022-03-15 17:55:48,420 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:55:48,420 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081973989] [2022-03-15 17:55:48,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:55:48,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:55:48,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:55:48,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:55:48,483 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:55:48,483 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081973989] [2022-03-15 17:55:48,483 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081973989] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:55:48,483 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:55:48,483 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-15 17:55:48,483 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [503096797] [2022-03-15 17:55:48,484 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 17:55:48,485 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 17:55:48,487 INFO L252 McrAutomatonBuilder]: Finished intersection with 27 states and 45 transitions. [2022-03-15 17:55:48,487 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 17:55:48,731 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [3332#(not (= 3 ~__unbuffered_cnt~0))] [2022-03-15 17:55:48,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 17:55:48,731 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:55:48,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 17:55:48,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-15 17:55:48,732 INFO L87 Difference]: Start difference. First operand 136 states and 307 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:55:48,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:55:48,809 INFO L93 Difference]: Finished difference Result 133 states and 273 transitions. [2022-03-15 17:55:48,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 17:55:48,809 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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 11 [2022-03-15 17:55:48,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:55:48,810 INFO L225 Difference]: With dead ends: 133 [2022-03-15 17:55:48,810 INFO L226 Difference]: Without dead ends: 83 [2022-03-15 17:55:48,810 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-03-15 17:55:48,816 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 22 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 17:55:48,816 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 10 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 17:55:48,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-03-15 17:55:48,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2022-03-15 17:55:48,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 82 states have (on average 1.7926829268292683) internal successors, (147), 82 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:55:48,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 147 transitions. [2022-03-15 17:55:48,823 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 147 transitions. Word has length 11 [2022-03-15 17:55:48,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:55:48,823 INFO L470 AbstractCegarLoop]: Abstraction has 83 states and 147 transitions. [2022-03-15 17:55:48,823 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:55:48,824 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 147 transitions. [2022-03-15 17:55:48,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-03-15 17:55:48,826 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:55:48,826 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 17:55:48,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-15 17:55:48,826 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 17:55:48,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:55:48,826 INFO L85 PathProgramCache]: Analyzing trace with hash 2030738151, now seen corresponding path program 1 times [2022-03-15 17:55:48,827 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:55:48,827 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693302665] [2022-03-15 17:55:48,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:55:48,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:55:48,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:55:48,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:55:48,905 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:55:48,905 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693302665] [2022-03-15 17:55:48,905 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693302665] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:55:48,905 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:55:48,906 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-15 17:55:48,906 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [717924605] [2022-03-15 17:55:48,906 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 17:55:48,907 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 17:55:48,911 INFO L252 McrAutomatonBuilder]: Finished intersection with 35 states and 55 transitions. [2022-03-15 17:55:48,911 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 17:55:48,988 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 17:55:48,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 17:55:48,989 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:55:48,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 17:55:48,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-15 17:55:48,989 INFO L87 Difference]: Start difference. First operand 83 states and 147 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:55:49,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:55:49,044 INFO L93 Difference]: Finished difference Result 88 states and 147 transitions. [2022-03-15 17:55:49,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 17:55:49,044 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 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 14 [2022-03-15 17:55:49,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:55:49,045 INFO L225 Difference]: With dead ends: 88 [2022-03-15 17:55:49,045 INFO L226 Difference]: Without dead ends: 64 [2022-03-15 17:55:49,045 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-03-15 17:55:49,046 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 18 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 17:55:49,046 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 6 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 17:55:49,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-03-15 17:55:49,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 63. [2022-03-15 17:55:49,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 62 states have (on average 1.7096774193548387) internal successors, (106), 62 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:55:49,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 106 transitions. [2022-03-15 17:55:49,048 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 106 transitions. Word has length 14 [2022-03-15 17:55:49,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:55:49,048 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 106 transitions. [2022-03-15 17:55:49,048 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:55:49,049 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 106 transitions. [2022-03-15 17:55:49,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-03-15 17:55:49,049 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:55:49,049 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 17:55:49,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-15 17:55:49,049 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 17:55:49,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:55:49,050 INFO L85 PathProgramCache]: Analyzing trace with hash 2023991931, now seen corresponding path program 2 times [2022-03-15 17:55:49,051 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:55:49,051 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573288672] [2022-03-15 17:55:49,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:55:49,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:55:49,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:55:49,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 17:55:49,095 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:55:49,095 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573288672] [2022-03-15 17:55:49,095 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573288672] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:55:49,095 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:55:49,096 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-15 17:55:49,096 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1858910243] [2022-03-15 17:55:49,096 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 17:55:49,097 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 17:55:49,102 INFO L252 McrAutomatonBuilder]: Finished intersection with 45 states and 76 transitions. [2022-03-15 17:55:49,102 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 17:55:49,273 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [3863#(<= ~__unbuffered_cnt~0 0)] [2022-03-15 17:55:49,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-15 17:55:49,274 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:55:49,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-15 17:55:49,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-03-15 17:55:49,275 INFO L87 Difference]: Start difference. First operand 63 states and 106 transitions. Second operand has 7 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:55:49,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:55:49,322 INFO L93 Difference]: Finished difference Result 58 states and 100 transitions. [2022-03-15 17:55:49,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 17:55:49,322 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 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 14 [2022-03-15 17:55:49,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:55:49,322 INFO L225 Difference]: With dead ends: 58 [2022-03-15 17:55:49,323 INFO L226 Difference]: Without dead ends: 0 [2022-03-15 17:55:49,323 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-03-15 17:55:49,323 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 23 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 17:55:49,324 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 6 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 17:55:49,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-15 17:55:49,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-15 17:55:49,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:55:49,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-15 17:55:49,324 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2022-03-15 17:55:49,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:55:49,325 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-15 17:55:49,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:55:49,325 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-15 17:55:49,325 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-15 17:55:49,327 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-03-15 17:55:49,327 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-03-15 17:55:49,327 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-03-15 17:55:49,328 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-03-15 17:55:49,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-15 17:55:49,329 INFO L732 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1] [2022-03-15 17:55:49,331 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-15 17:55:49,331 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-15 17:55:49,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 05:55:49 BasicIcfg [2022-03-15 17:55:49,333 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-15 17:55:49,333 INFO L158 Benchmark]: Toolchain (without parser) took 5647.67ms. Allocated memory was 190.8MB in the beginning and 259.0MB in the end (delta: 68.2MB). Free memory was 133.9MB in the beginning and 125.5MB in the end (delta: 8.5MB). Peak memory consumption was 78.2MB. Max. memory is 8.0GB. [2022-03-15 17:55:49,333 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 190.8MB. Free memory is still 151.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 17:55:49,334 INFO L158 Benchmark]: CACSL2BoogieTranslator took 408.83ms. Allocated memory was 190.8MB in the beginning and 259.0MB in the end (delta: 68.2MB). Free memory was 133.7MB in the beginning and 221.1MB in the end (delta: -87.3MB). Peak memory consumption was 7.4MB. Max. memory is 8.0GB. [2022-03-15 17:55:49,334 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.44ms. Allocated memory is still 259.0MB. Free memory was 221.1MB in the beginning and 219.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-15 17:55:49,334 INFO L158 Benchmark]: Boogie Preprocessor took 32.32ms. Allocated memory is still 259.0MB. Free memory was 219.0MB in the beginning and 217.9MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-15 17:55:49,334 INFO L158 Benchmark]: RCFGBuilder took 411.04ms. Allocated memory is still 259.0MB. Free memory was 217.9MB in the beginning and 204.3MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-03-15 17:55:49,335 INFO L158 Benchmark]: TraceAbstraction took 4750.15ms. Allocated memory is still 259.0MB. Free memory was 204.3MB in the beginning and 125.5MB in the end (delta: 78.8MB). Peak memory consumption was 79.9MB. Max. memory is 8.0GB. [2022-03-15 17:55:49,336 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 190.8MB. Free memory is still 151.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 408.83ms. Allocated memory was 190.8MB in the beginning and 259.0MB in the end (delta: 68.2MB). Free memory was 133.7MB in the beginning and 221.1MB in the end (delta: -87.3MB). Peak memory consumption was 7.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 40.44ms. Allocated memory is still 259.0MB. Free memory was 221.1MB in the beginning and 219.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 32.32ms. Allocated memory is still 259.0MB. Free memory was 219.0MB in the beginning and 217.9MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 411.04ms. Allocated memory is still 259.0MB. Free memory was 217.9MB in the beginning and 204.3MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 4750.15ms. Allocated memory is still 259.0MB. Free memory was 204.3MB in the beginning and 125.5MB in the end (delta: 78.8MB). Peak memory consumption was 79.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.3s, 97 PlacesBefore, 30 PlacesAfterwards, 89 TransitionsBefore, 20 TransitionsAfterwards, 1518 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 49 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 2 ChoiceCompositions, 82 TotalNumberOfCompositions, 2571 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1381, positive: 1301, positive conditional: 0, positive unconditional: 1301, negative: 80, negative conditional: 0, negative unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 831, positive: 797, positive conditional: 0, positive unconditional: 797, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1381, positive: 504, positive conditional: 0, positive unconditional: 504, negative: 46, negative conditional: 0, negative unconditional: 46, unknown: 831, unknown conditional: 0, unknown unconditional: 831] , Statistics on independence cache: Total cache size (in pairs): 28, Positive cache size: 19, Positive conditional cache size: 0, Positive unconditional cache size: 19, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - 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 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 111 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 4.6s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 163 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 163 mSDsluCounter, 50 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 209 mSDsCounter, 40 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 401 IncrementalHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 40 mSolverCounterUnsat, 23 mSDtfsCounter, 401 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=209occurred in iteration=1, InterpolantAutomatonStates: 41, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 165 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 432 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-03-15 17:55:49,369 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...