/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe021_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 17:09:10,585 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 17:09:10,590 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 17:09:10,647 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 17:09:10,648 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 17:09:10,652 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 17:09:10,655 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 17:09:10,662 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 17:09:10,665 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 17:09:10,670 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 17:09:10,672 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 17:09:10,673 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 17:09:10,673 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 17:09:10,676 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 17:09:10,678 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 17:09:10,680 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 17:09:10,681 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 17:09:10,685 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 17:09:10,703 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 17:09:10,705 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 17:09:10,709 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 17:09:10,710 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 17:09:10,711 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 17:09:10,714 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 17:09:10,720 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-09 17:09:10,729 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 17:09:10,730 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 17:09:10,731 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 17:09:10,733 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 17:09:10,733 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 17:09:10,734 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 17:09:10,734 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 17:09:10,735 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 17:09:10,735 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 17:09:10,736 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 17:09:10,737 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 17:09:10,738 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-SP.epf [2020-11-09 17:09:10,794 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 17:09:10,794 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 17:09:10,798 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 17:09:10,798 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 17:09:10,798 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 17:09:10,799 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 17:09:10,799 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 17:09:10,799 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 17:09:10,799 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 17:09:10,800 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 17:09:10,801 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 17:09:10,801 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 17:09:10,801 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 17:09:10,801 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 17:09:10,802 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 17:09:10,802 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 17:09:10,802 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 17:09:10,802 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 17:09:10,802 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 17:09:10,802 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 17:09:10,803 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 17:09:10,803 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 17:09:10,803 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 17:09:10,804 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 17:09:10,804 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 17:09:10,804 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 17:09:10,804 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 17:09:10,804 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-11-09 17:09:10,804 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 17:09:10,805 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 17:09:10,805 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 17:09:11,163 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 17:09:11,190 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 17:09:11,193 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 17:09:11,194 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 17:09:11,195 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 17:09:11,196 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe021_tso.oepc.i [2020-11-09 17:09:11,282 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5f2cdb8b/296aa331f202478ca082a343dd24d570/FLAG737b075d5 [2020-11-09 17:09:11,903 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 17:09:11,911 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe021_tso.oepc.i [2020-11-09 17:09:11,929 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5f2cdb8b/296aa331f202478ca082a343dd24d570/FLAG737b075d5 [2020-11-09 17:09:12,197 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5f2cdb8b/296aa331f202478ca082a343dd24d570 [2020-11-09 17:09:12,199 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 17:09:12,205 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 17:09:12,207 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 17:09:12,207 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 17:09:12,211 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 17:09:12,212 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:09:12" (1/1) ... [2020-11-09 17:09:12,219 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11efd914 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:09:12, skipping insertion in model container [2020-11-09 17:09:12,219 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:09:12" (1/1) ... [2020-11-09 17:09:12,232 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 17:09:12,293 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 17:09:12,616 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 17:09:12,626 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 17:09:12,688 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 17:09:12,809 INFO L208 MainTranslator]: Completed translation [2020-11-09 17:09:12,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:09:12 WrapperNode [2020-11-09 17:09:12,810 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 17:09:12,811 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 17:09:12,812 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 17:09:12,812 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 17:09:12,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:09:12" (1/1) ... [2020-11-09 17:09:12,841 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:09:12" (1/1) ... [2020-11-09 17:09:12,863 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 17:09:12,864 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 17:09:12,864 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 17:09:12,865 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 17:09:12,873 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:09:12" (1/1) ... [2020-11-09 17:09:12,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:09:12" (1/1) ... [2020-11-09 17:09:12,877 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:09:12" (1/1) ... [2020-11-09 17:09:12,877 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:09:12" (1/1) ... [2020-11-09 17:09:12,883 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:09:12" (1/1) ... [2020-11-09 17:09:12,885 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:09:12" (1/1) ... [2020-11-09 17:09:12,887 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:09:12" (1/1) ... [2020-11-09 17:09:12,890 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 17:09:12,891 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 17:09:12,891 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 17:09:12,891 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 17:09:12,892 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:09:12" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 17:09:12,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 17:09:12,974 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 17:09:12,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 17:09:12,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 17:09:12,975 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 17:09:12,975 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 17:09:12,975 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 17:09:12,975 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 17:09:12,975 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-09 17:09:12,976 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-09 17:09:12,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 17:09:12,976 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 17:09:12,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 17:09:12,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 17:09:12,978 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-09 17:09:13,581 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 17:09:13,581 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 17:09:13,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:09:13 BoogieIcfgContainer [2020-11-09 17:09:13,584 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 17:09:13,586 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 17:09:13,586 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 17:09:13,589 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 17:09:13,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:09:12" (1/3) ... [2020-11-09 17:09:13,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2582ed79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:09:13, skipping insertion in model container [2020-11-09 17:09:13,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:09:12" (2/3) ... [2020-11-09 17:09:13,592 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2582ed79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:09:13, skipping insertion in model container [2020-11-09 17:09:13,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:09:13" (3/3) ... [2020-11-09 17:09:13,594 INFO L111 eAbstractionObserver]: Analyzing ICFG safe021_tso.oepc.i [2020-11-09 17:09:13,612 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 17:09:13,612 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 17:09:13,616 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 17:09:13,617 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 17:09:13,668 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:13,668 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:13,669 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:13,669 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:13,669 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:13,669 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:13,669 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:13,670 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:13,670 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:13,670 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:13,671 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:13,671 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:13,672 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:13,672 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:13,672 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:13,672 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:13,673 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:13,673 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:13,673 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:13,673 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:13,674 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:13,674 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:13,674 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:13,674 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:13,678 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:13,678 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:13,678 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:13,678 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:13,679 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:13,680 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:13,680 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:13,680 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:13,680 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:13,681 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:13,682 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:13,682 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:13,690 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:13,690 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:13,691 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:13,691 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:13,702 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:13,702 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:13,703 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:13,703 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:13,711 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:13,712 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:13,712 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:13,712 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:13,715 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 17:09:13,733 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-09 17:09:13,773 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 17:09:13,774 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 17:09:13,774 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 17:09:13,774 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 17:09:13,774 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 17:09:13,774 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 17:09:13,775 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 17:09:13,775 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 17:09:13,787 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 17:09:13,788 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 79 transitions, 173 flow [2020-11-09 17:09:13,791 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 79 transitions, 173 flow [2020-11-09 17:09:13,793 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 79 transitions, 173 flow [2020-11-09 17:09:13,840 INFO L129 PetriNetUnfolder]: 3/76 cut-off events. [2020-11-09 17:09:13,840 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 17:09:13,845 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 76 events. 3/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-11-09 17:09:13,848 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-11-09 17:09:17,183 WARN L194 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-11-09 17:09:17,305 WARN L194 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 17:09:17,430 WARN L194 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-11-09 17:09:17,639 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 39 [2020-11-09 17:09:18,028 WARN L194 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2020-11-09 17:09:18,140 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 17:09:18,404 WARN L194 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2020-11-09 17:09:18,537 WARN L194 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 17:09:18,562 INFO L131 LiptonReduction]: Checked pairs total: 3181 [2020-11-09 17:09:18,563 INFO L133 LiptonReduction]: Total number of compositions: 74 [2020-11-09 17:09:18,570 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-11-09 17:09:18,599 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-11-09 17:09:18,601 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-11-09 17:09:18,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-09 17:09:18,609 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:09:18,610 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:09:18,611 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:09:18,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:09:18,617 INFO L82 PathProgramCache]: Analyzing trace with hash 2101373786, now seen corresponding path program 1 times [2020-11-09 17:09:18,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:09:18,642 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518433940] [2020-11-09 17:09:18,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:09:18,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:09:18,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:09:18,895 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518433940] [2020-11-09 17:09:18,896 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:09:18,896 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 17:09:18,897 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [12475406] [2020-11-09 17:09:18,898 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:09:18,901 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:09:18,916 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-11-09 17:09:18,916 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:09:18,921 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:09:18,922 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 17:09:18,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:09:18,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 17:09:18,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:09:18,940 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-11-09 17:09:18,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:09:18,982 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-11-09 17:09:18,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 17:09:18,985 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-11-09 17:09:18,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:09:19,001 INFO L225 Difference]: With dead ends: 282 [2020-11-09 17:09:19,001 INFO L226 Difference]: Without dead ends: 218 [2020-11-09 17:09:19,003 INFO L677 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 [2020-11-09 17:09:19,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-11-09 17:09:19,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-11-09 17:09:19,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-11-09 17:09:19,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-11-09 17:09:19,079 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-11-09 17:09:19,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:09:19,081 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-11-09 17:09:19,081 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 17:09:19,081 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-11-09 17:09:19,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-09 17:09:19,083 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:09:19,083 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:09:19,083 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 17:09:19,083 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:09:19,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:09:19,084 INFO L82 PathProgramCache]: Analyzing trace with hash 718076695, now seen corresponding path program 1 times [2020-11-09 17:09:19,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:09:19,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107919079] [2020-11-09 17:09:19,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:09:19,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:09:19,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:09:19,225 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107919079] [2020-11-09 17:09:19,225 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:09:19,225 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:09:19,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1556421619] [2020-11-09 17:09:19,226 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:09:19,227 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:09:19,229 INFO L252 McrAutomatonBuilder]: Finished intersection with 11 states and 11 transitions. [2020-11-09 17:09:19,230 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:09:19,240 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:09:19,241 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:09:19,242 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:09:19,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:09:19,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:09:19,243 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 4 states. [2020-11-09 17:09:19,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:09:19,280 INFO L93 Difference]: Finished difference Result 242 states and 634 transitions. [2020-11-09 17:09:19,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 17:09:19,281 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-11-09 17:09:19,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:09:19,283 INFO L225 Difference]: With dead ends: 242 [2020-11-09 17:09:19,283 INFO L226 Difference]: Without dead ends: 146 [2020-11-09 17:09:19,284 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:09:19,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-11-09 17:09:19,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-11-09 17:09:19,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-11-09 17:09:19,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 362 transitions. [2020-11-09 17:09:19,300 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 362 transitions. Word has length 9 [2020-11-09 17:09:19,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:09:19,300 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 362 transitions. [2020-11-09 17:09:19,300 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:09:19,300 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 362 transitions. [2020-11-09 17:09:19,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 17:09:19,302 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:09:19,302 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:09:19,302 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 17:09:19,303 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:09:19,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:09:19,303 INFO L82 PathProgramCache]: Analyzing trace with hash -676988276, now seen corresponding path program 1 times [2020-11-09 17:09:19,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:09:19,305 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103403152] [2020-11-09 17:09:19,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:09:19,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:09:19,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:09:19,399 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103403152] [2020-11-09 17:09:19,399 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:09:19,400 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:09:19,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [951099539] [2020-11-09 17:09:19,400 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:09:19,402 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:09:19,404 INFO L252 McrAutomatonBuilder]: Finished intersection with 19 states and 25 transitions. [2020-11-09 17:09:19,405 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:09:19,491 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:09:19,538 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:09:19,585 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:09:19,608 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:09:19,608 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:09:19,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:09:19,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:09:19,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:09:19,609 INFO L87 Difference]: Start difference. First operand 146 states and 362 transitions. Second operand 4 states. [2020-11-09 17:09:19,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:09:19,650 INFO L93 Difference]: Finished difference Result 165 states and 377 transitions. [2020-11-09 17:09:19,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 17:09:19,651 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-09 17:09:19,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:09:19,652 INFO L225 Difference]: With dead ends: 165 [2020-11-09 17:09:19,653 INFO L226 Difference]: Without dead ends: 125 [2020-11-09 17:09:19,653 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:09:19,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-11-09 17:09:19,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2020-11-09 17:09:19,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-11-09 17:09:19,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 284 transitions. [2020-11-09 17:09:19,663 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 284 transitions. Word has length 11 [2020-11-09 17:09:19,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:09:19,664 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 284 transitions. [2020-11-09 17:09:19,664 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:09:19,664 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 284 transitions. [2020-11-09 17:09:19,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-09 17:09:19,666 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:09:19,666 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:09:19,666 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 17:09:19,666 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:09:19,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:09:19,667 INFO L82 PathProgramCache]: Analyzing trace with hash 524604256, now seen corresponding path program 1 times [2020-11-09 17:09:19,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:09:19,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079547159] [2020-11-09 17:09:19,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:09:19,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:09:19,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:09:19,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079547159] [2020-11-09 17:09:19,742 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:09:19,742 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:09:19,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1255674403] [2020-11-09 17:09:19,742 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:09:19,744 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:09:19,746 INFO L252 McrAutomatonBuilder]: Finished intersection with 21 states and 28 transitions. [2020-11-09 17:09:19,746 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:09:19,755 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:09:19,816 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 2 new interpolants: [2372#(not (= 3 ~__unbuffered_cnt~0)), 2373#(not (= ~__unbuffered_cnt~0 2))] [2020-11-09 17:09:19,817 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-09 17:09:19,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:09:19,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-09 17:09:19,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-09 17:09:19,818 INFO L87 Difference]: Start difference. First operand 125 states and 284 transitions. Second operand 7 states. [2020-11-09 17:09:19,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:09:19,915 INFO L93 Difference]: Finished difference Result 109 states and 239 transitions. [2020-11-09 17:09:19,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-09 17:09:19,916 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2020-11-09 17:09:19,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:09:19,918 INFO L225 Difference]: With dead ends: 109 [2020-11-09 17:09:19,918 INFO L226 Difference]: Without dead ends: 84 [2020-11-09 17:09:19,919 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-09 17:09:19,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-11-09 17:09:19,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2020-11-09 17:09:19,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-11-09 17:09:19,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 176 transitions. [2020-11-09 17:09:19,925 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 176 transitions. Word has length 12 [2020-11-09 17:09:19,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:09:19,926 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 176 transitions. [2020-11-09 17:09:19,926 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-09 17:09:19,926 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 176 transitions. [2020-11-09 17:09:19,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 17:09:19,927 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:09:19,927 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:09:19,927 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 17:09:19,928 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:09:19,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:09:19,928 INFO L82 PathProgramCache]: Analyzing trace with hash 1724594669, now seen corresponding path program 1 times [2020-11-09 17:09:19,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:09:19,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982686593] [2020-11-09 17:09:19,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:09:19,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:09:19,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:09:19,983 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982686593] [2020-11-09 17:09:19,983 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:09:19,983 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:09:19,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [886058342] [2020-11-09 17:09:19,984 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:09:19,986 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:09:19,995 INFO L252 McrAutomatonBuilder]: Finished intersection with 61 states and 107 transitions. [2020-11-09 17:09:19,996 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:09:20,178 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:09:20,179 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:09:20,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:09:20,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:09:20,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:09:20,180 INFO L87 Difference]: Start difference. First operand 84 states and 176 transitions. Second operand 4 states. [2020-11-09 17:09:20,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:09:20,203 INFO L93 Difference]: Finished difference Result 97 states and 197 transitions. [2020-11-09 17:09:20,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 17:09:20,203 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-09 17:09:20,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:09:20,204 INFO L225 Difference]: With dead ends: 97 [2020-11-09 17:09:20,204 INFO L226 Difference]: Without dead ends: 36 [2020-11-09 17:09:20,205 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:09:20,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-11-09 17:09:20,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-11-09 17:09:20,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-11-09 17:09:20,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 56 transitions. [2020-11-09 17:09:20,208 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 56 transitions. Word has length 17 [2020-11-09 17:09:20,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:09:20,208 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 56 transitions. [2020-11-09 17:09:20,208 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:09:20,208 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 56 transitions. [2020-11-09 17:09:20,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 17:09:20,209 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:09:20,209 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:09:20,209 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 17:09:20,210 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:09:20,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:09:20,210 INFO L82 PathProgramCache]: Analyzing trace with hash -737350579, now seen corresponding path program 2 times [2020-11-09 17:09:20,212 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:09:20,212 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478472938] [2020-11-09 17:09:20,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:09:20,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:09:20,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:09:20,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478472938] [2020-11-09 17:09:20,259 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:09:20,259 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:09:20,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1629501020] [2020-11-09 17:09:20,259 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:09:20,261 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:09:20,266 INFO L252 McrAutomatonBuilder]: Finished intersection with 30 states and 41 transitions. [2020-11-09 17:09:20,266 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:09:20,272 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:09:20,273 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 17:09:20,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:09:20,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 17:09:20,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:09:20,274 INFO L87 Difference]: Start difference. First operand 36 states and 56 transitions. Second operand 3 states. [2020-11-09 17:09:20,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:09:20,282 INFO L93 Difference]: Finished difference Result 35 states and 55 transitions. [2020-11-09 17:09:20,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 17:09:20,283 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-11-09 17:09:20,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:09:20,283 INFO L225 Difference]: With dead ends: 35 [2020-11-09 17:09:20,283 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 17:09:20,284 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:09:20,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 17:09:20,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 17:09:20,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 17:09:20,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 17:09:20,285 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-11-09 17:09:20,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:09:20,285 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 17:09:20,285 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 17:09:20,285 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 17:09:20,285 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 17:09:20,285 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 17:09:20,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:09:20 BasicIcfg [2020-11-09 17:09:20,289 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 17:09:20,291 INFO L168 Benchmark]: Toolchain (without parser) took 8089.17 ms. Allocated memory was 155.2 MB in the beginning and 224.4 MB in the end (delta: 69.2 MB). Free memory was 129.4 MB in the beginning and 170.2 MB in the end (delta: -40.8 MB). Peak memory consumption was 29.3 MB. Max. memory is 8.0 GB. [2020-11-09 17:09:20,292 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 155.2 MB. Free memory was 127.3 MB in the beginning and 127.2 MB in the end (delta: 84.5 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 17:09:20,293 INFO L168 Benchmark]: CACSL2BoogieTranslator took 603.38 ms. Allocated memory is still 155.2 MB. Free memory was 128.8 MB in the beginning and 135.3 MB in the end (delta: -6.5 MB). Peak memory consumption was 33.4 MB. Max. memory is 8.0 GB. [2020-11-09 17:09:20,293 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.29 ms. Allocated memory is still 155.2 MB. Free memory was 135.3 MB in the beginning and 133.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 17:09:20,294 INFO L168 Benchmark]: Boogie Preprocessor took 26.09 ms. Allocated memory is still 155.2 MB. Free memory was 133.2 MB in the beginning and 131.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 17:09:20,295 INFO L168 Benchmark]: RCFGBuilder took 693.19 ms. Allocated memory is still 155.2 MB. Free memory was 131.6 MB in the beginning and 109.0 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-11-09 17:09:20,296 INFO L168 Benchmark]: TraceAbstraction took 6703.47 ms. Allocated memory was 155.2 MB in the beginning and 224.4 MB in the end (delta: 69.2 MB). Free memory was 108.5 MB in the beginning and 170.2 MB in the end (delta: -61.7 MB). Peak memory consumption was 7.5 MB. Max. memory is 8.0 GB. [2020-11-09 17:09:20,300 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 155.2 MB. Free memory was 127.3 MB in the beginning and 127.2 MB in the end (delta: 84.5 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 603.38 ms. Allocated memory is still 155.2 MB. Free memory was 128.8 MB in the beginning and 135.3 MB in the end (delta: -6.5 MB). Peak memory consumption was 33.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 52.29 ms. Allocated memory is still 155.2 MB. Free memory was 135.3 MB in the beginning and 133.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 26.09 ms. Allocated memory is still 155.2 MB. Free memory was 133.2 MB in the beginning and 131.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 693.19 ms. Allocated memory is still 155.2 MB. Free memory was 131.6 MB in the beginning and 109.0 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6703.47 ms. Allocated memory was 155.2 MB in the beginning and 224.4 MB in the end (delta: 69.2 MB). Free memory was 108.5 MB in the beginning and 170.2 MB in the end (delta: -61.7 MB). Peak memory consumption was 7.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 821 VarBasedMoverChecksPositive, 29 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 59 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.7s, 86 PlacesBefore, 31 PlacesAfterwards, 79 TransitionsBefore, 22 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 2 ChoiceCompositions, 74 TotalNumberOfCompositions, 3181 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.8s, HoareTripleCheckerStatistics: 118 SDtfs, 94 SDslu, 153 SDs, 0 SdLazy, 76 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 55 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 74 NumberOfCodeBlocks, 74 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 2427 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...