/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/pthread-wmm/safe009_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 11:07:25,696 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 11:07:25,700 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 11:07:25,759 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 11:07:25,760 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 11:07:25,765 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 11:07:25,768 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 11:07:25,776 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 11:07:25,780 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 11:07:25,788 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 11:07:25,790 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 11:07:25,791 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 11:07:25,792 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 11:07:25,795 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 11:07:25,797 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 11:07:25,799 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 11:07:25,801 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 11:07:25,806 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 11:07:25,814 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 11:07:25,822 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 11:07:25,824 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 11:07:25,826 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 11:07:25,828 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 11:07:25,831 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 11:07:25,854 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 11:07:25,861 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 11:07:25,863 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 11:07:25,865 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 11:07:25,866 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 11:07:25,867 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 11:07:25,867 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 11:07:25,868 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 11:07:25,869 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 11:07:25,869 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 11:07:25,870 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 11:07:25,871 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 11:07:25,872 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 11:07:25,932 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 11:07:25,932 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 11:07:25,937 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 11:07:25,938 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 11:07:25,938 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 11:07:25,938 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 11:07:25,938 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 11:07:25,939 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 11:07:25,939 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 11:07:25,939 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 11:07:25,941 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 11:07:25,941 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 11:07:25,941 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 11:07:25,941 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 11:07:25,942 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 11:07:25,942 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 11:07:25,942 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 11:07:25,942 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 11:07:25,943 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 11:07:25,943 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 11:07:25,943 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 11:07:25,944 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 11:07:25,944 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 11:07:25,944 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 11:07:25,944 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 11:07:25,945 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 11:07:26,390 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 11:07:26,423 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 11:07:26,427 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 11:07:26,429 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 11:07:26,429 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 11:07:26,431 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe009_tso.oepc.i [2020-12-22 11:07:26,513 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d903ed22/1aa66f7ab13546348c80341b84c4ab0e/FLAG65155d7b9 [2020-12-22 11:07:27,198 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 11:07:27,200 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe009_tso.oepc.i [2020-12-22 11:07:27,220 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d903ed22/1aa66f7ab13546348c80341b84c4ab0e/FLAG65155d7b9 [2020-12-22 11:07:27,456 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d903ed22/1aa66f7ab13546348c80341b84c4ab0e [2020-12-22 11:07:27,462 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 11:07:27,464 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 11:07:27,466 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 11:07:27,466 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 11:07:27,470 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 11:07:27,472 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:07:27" (1/1) ... [2020-12-22 11:07:27,474 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45a17e4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:27, skipping insertion in model container [2020-12-22 11:07:27,474 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:07:27" (1/1) ... [2020-12-22 11:07:27,483 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 11:07:27,550 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 11:07:27,732 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe009_tso.oepc.i[950,963] [2020-12-22 11:07:27,922 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:07:27,933 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 11:07:27,949 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe009_tso.oepc.i[950,963] [2020-12-22 11:07:27,982 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:07:28,088 INFO L208 MainTranslator]: Completed translation [2020-12-22 11:07:28,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:28 WrapperNode [2020-12-22 11:07:28,089 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 11:07:28,090 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 11:07:28,090 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 11:07:28,091 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 11:07:28,101 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:28" (1/1) ... [2020-12-22 11:07:28,118 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:28" (1/1) ... [2020-12-22 11:07:28,147 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 11:07:28,148 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 11:07:28,148 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 11:07:28,148 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 11:07:28,157 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:28" (1/1) ... [2020-12-22 11:07:28,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:28" (1/1) ... [2020-12-22 11:07:28,161 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:28" (1/1) ... [2020-12-22 11:07:28,162 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:28" (1/1) ... [2020-12-22 11:07:28,168 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:28" (1/1) ... [2020-12-22 11:07:28,171 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:28" (1/1) ... [2020-12-22 11:07:28,173 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:28" (1/1) ... [2020-12-22 11:07:28,177 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 11:07:28,178 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 11:07:28,178 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 11:07:28,178 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 11:07:28,179 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:28" (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 [2020-12-22 11:07:28,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 11:07:28,285 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-22 11:07:28,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 11:07:28,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 11:07:28,285 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-22 11:07:28,285 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-22 11:07:28,286 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-22 11:07:28,286 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-22 11:07:28,286 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-22 11:07:28,286 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-22 11:07:28,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 11:07:28,287 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-22 11:07:28,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 11:07:28,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 11:07:28,289 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-22 11:07:28,754 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 11:07:28,755 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-22 11:07:28,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:07:28 BoogieIcfgContainer [2020-12-22 11:07:28,759 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 11:07:28,762 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 11:07:28,762 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 11:07:28,766 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 11:07:28,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:07:27" (1/3) ... [2020-12-22 11:07:28,768 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@540f1027 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:07:28, skipping insertion in model container [2020-12-22 11:07:28,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:28" (2/3) ... [2020-12-22 11:07:28,769 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@540f1027 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:07:28, skipping insertion in model container [2020-12-22 11:07:28,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:07:28" (3/3) ... [2020-12-22 11:07:28,771 INFO L111 eAbstractionObserver]: Analyzing ICFG safe009_tso.oepc.i [2020-12-22 11:07:28,786 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-22 11:07:28,786 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 11:07:28,793 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-22 11:07:28,794 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-22 11:07:28,861 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:28,861 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:28,862 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:28,862 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:28,863 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:28,864 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:28,864 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:28,864 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:28,865 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:28,865 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:28,865 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:28,866 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:28,868 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:28,868 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:28,868 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:28,868 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:28,869 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:28,869 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:28,869 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:28,870 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:28,870 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:28,871 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:28,871 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:28,871 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:28,872 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:28,872 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:28,872 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:28,873 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:28,876 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:28,876 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:28,877 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:28,877 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:28,878 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:28,879 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:28,879 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:28,879 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:28,882 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:28,883 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:28,884 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:28,884 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:28,893 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:28,894 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:28,899 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:28,901 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:28,907 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:28,908 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:28,908 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:28,908 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:28,913 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-22 11:07:28,936 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-22 11:07:28,981 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 11:07:28,981 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 11:07:28,981 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 11:07:28,982 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 11:07:28,982 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 11:07:28,982 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 11:07:28,983 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 11:07:28,983 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 11:07:29,002 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-22 11:07:29,007 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 73 transitions, 161 flow [2020-12-22 11:07:29,012 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 73 transitions, 161 flow [2020-12-22 11:07:29,014 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 73 transitions, 161 flow [2020-12-22 11:07:29,101 INFO L129 PetriNetUnfolder]: 2/70 cut-off events. [2020-12-22 11:07:29,102 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-12-22 11:07:29,117 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 70 events. 2/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-12-22 11:07:29,124 INFO L116 LiptonReduction]: Number of co-enabled transitions 1220 [2020-12-22 11:07:32,107 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-12-22 11:07:32,393 WARN L197 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-12-22 11:07:32,504 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-12-22 11:07:32,727 WARN L197 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-12-22 11:07:32,920 INFO L131 LiptonReduction]: Checked pairs total: 2044 [2020-12-22 11:07:32,920 INFO L133 LiptonReduction]: Total number of compositions: 61 [2020-12-22 11:07:32,928 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-12-22 11:07:32,956 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 282 states. [2020-12-22 11:07:32,958 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states. [2020-12-22 11:07:32,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-22 11:07:32,966 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:07:32,967 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:07:32,967 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:07:32,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:07:32,974 INFO L82 PathProgramCache]: Analyzing trace with hash 622846231, now seen corresponding path program 1 times [2020-12-22 11:07:32,985 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:07:32,985 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747616262] [2020-12-22 11:07:32,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:07:33,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:07:33,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:07:33,201 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747616262] [2020-12-22 11:07:33,202 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:07:33,203 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:07:33,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533882764] [2020-12-22 11:07:33,208 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 11:07:33,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:07:33,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 11:07:33,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 11:07:33,228 INFO L87 Difference]: Start difference. First operand 282 states. Second operand 2 states. [2020-12-22 11:07:33,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:07:33,269 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-12-22 11:07:33,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 11:07:33,273 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-12-22 11:07:33,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:07:33,300 INFO L225 Difference]: With dead ends: 282 [2020-12-22 11:07:33,301 INFO L226 Difference]: Without dead ends: 234 [2020-12-22 11:07:33,303 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 11:07:33,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2020-12-22 11:07:33,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2020-12-22 11:07:33,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-12-22 11:07:33,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 656 transitions. [2020-12-22 11:07:33,387 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 656 transitions. Word has length 8 [2020-12-22 11:07:33,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:07:33,388 INFO L481 AbstractCegarLoop]: Abstraction has 234 states and 656 transitions. [2020-12-22 11:07:33,388 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 11:07:33,388 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 656 transitions. [2020-12-22 11:07:33,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-22 11:07:33,390 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:07:33,390 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:07:33,391 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 11:07:33,391 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:07:33,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:07:33,392 INFO L82 PathProgramCache]: Analyzing trace with hash 2128318799, now seen corresponding path program 1 times [2020-12-22 11:07:33,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:07:33,392 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614101301] [2020-12-22 11:07:33,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:07:33,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:07:33,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:07:33,566 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614101301] [2020-12-22 11:07:33,566 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:07:33,567 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:07:33,567 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842416052] [2020-12-22 11:07:33,568 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:07:33,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:07:33,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:07:33,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:07:33,570 INFO L87 Difference]: Start difference. First operand 234 states and 656 transitions. Second operand 4 states. [2020-12-22 11:07:33,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:07:33,654 INFO L93 Difference]: Finished difference Result 402 states and 1050 transitions. [2020-12-22 11:07:33,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:07:33,655 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-12-22 11:07:33,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:07:33,662 INFO L225 Difference]: With dead ends: 402 [2020-12-22 11:07:33,662 INFO L226 Difference]: Without dead ends: 308 [2020-12-22 11:07:33,663 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:07:33,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2020-12-22 11:07:33,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 264. [2020-12-22 11:07:33,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2020-12-22 11:07:33,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 712 transitions. [2020-12-22 11:07:33,719 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 712 transitions. Word has length 9 [2020-12-22 11:07:33,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:07:33,720 INFO L481 AbstractCegarLoop]: Abstraction has 264 states and 712 transitions. [2020-12-22 11:07:33,720 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:07:33,720 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 712 transitions. [2020-12-22 11:07:33,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 11:07:33,722 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:07:33,722 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:07:33,722 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 11:07:33,722 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:07:33,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:07:33,730 INFO L82 PathProgramCache]: Analyzing trace with hash 503221834, now seen corresponding path program 1 times [2020-12-22 11:07:33,730 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:07:33,731 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355328661] [2020-12-22 11:07:33,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:07:33,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:07:33,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:07:33,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355328661] [2020-12-22 11:07:33,907 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:07:33,907 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:07:33,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675611583] [2020-12-22 11:07:33,908 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:07:33,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:07:33,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:07:33,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:07:33,909 INFO L87 Difference]: Start difference. First operand 264 states and 712 transitions. Second operand 5 states. [2020-12-22 11:07:33,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:07:33,969 INFO L93 Difference]: Finished difference Result 345 states and 864 transitions. [2020-12-22 11:07:33,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 11:07:33,970 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-12-22 11:07:33,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:07:33,973 INFO L225 Difference]: With dead ends: 345 [2020-12-22 11:07:33,973 INFO L226 Difference]: Without dead ends: 278 [2020-12-22 11:07:33,974 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-22 11:07:33,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-12-22 11:07:33,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 246. [2020-12-22 11:07:33,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2020-12-22 11:07:33,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 648 transitions. [2020-12-22 11:07:33,988 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 648 transitions. Word has length 10 [2020-12-22 11:07:33,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:07:33,988 INFO L481 AbstractCegarLoop]: Abstraction has 246 states and 648 transitions. [2020-12-22 11:07:33,988 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:07:33,989 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 648 transitions. [2020-12-22 11:07:33,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 11:07:33,990 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:07:33,991 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:07:33,991 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 11:07:33,991 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:07:33,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:07:33,992 INFO L82 PathProgramCache]: Analyzing trace with hash 1553300282, now seen corresponding path program 1 times [2020-12-22 11:07:33,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:07:33,992 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416174673] [2020-12-22 11:07:33,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:07:34,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:07:34,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:07:34,106 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416174673] [2020-12-22 11:07:34,106 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:07:34,107 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:07:34,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596129089] [2020-12-22 11:07:34,107 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:07:34,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:07:34,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:07:34,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:07:34,112 INFO L87 Difference]: Start difference. First operand 246 states and 648 transitions. Second operand 5 states. [2020-12-22 11:07:34,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:07:34,169 INFO L93 Difference]: Finished difference Result 298 states and 740 transitions. [2020-12-22 11:07:34,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 11:07:34,170 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-12-22 11:07:34,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:07:34,173 INFO L225 Difference]: With dead ends: 298 [2020-12-22 11:07:34,173 INFO L226 Difference]: Without dead ends: 254 [2020-12-22 11:07:34,174 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-22 11:07:34,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-12-22 11:07:34,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 222. [2020-12-22 11:07:34,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2020-12-22 11:07:34,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 576 transitions. [2020-12-22 11:07:34,185 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 576 transitions. Word has length 10 [2020-12-22 11:07:34,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:07:34,186 INFO L481 AbstractCegarLoop]: Abstraction has 222 states and 576 transitions. [2020-12-22 11:07:34,186 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:07:34,186 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 576 transitions. [2020-12-22 11:07:34,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-22 11:07:34,188 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:07:34,188 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:07:34,188 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 11:07:34,188 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:07:34,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:07:34,189 INFO L82 PathProgramCache]: Analyzing trace with hash -1580065377, now seen corresponding path program 1 times [2020-12-22 11:07:34,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:07:34,190 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488180645] [2020-12-22 11:07:34,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:07:34,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:07:34,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:07:34,252 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488180645] [2020-12-22 11:07:34,252 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:07:34,252 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:07:34,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256796991] [2020-12-22 11:07:34,253 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:07:34,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:07:34,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:07:34,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:07:34,254 INFO L87 Difference]: Start difference. First operand 222 states and 576 transitions. Second operand 5 states. [2020-12-22 11:07:34,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:07:34,297 INFO L93 Difference]: Finished difference Result 266 states and 662 transitions. [2020-12-22 11:07:34,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 11:07:34,297 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-12-22 11:07:34,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:07:34,300 INFO L225 Difference]: With dead ends: 266 [2020-12-22 11:07:34,300 INFO L226 Difference]: Without dead ends: 242 [2020-12-22 11:07:34,300 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-22 11:07:34,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-12-22 11:07:34,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 210. [2020-12-22 11:07:34,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2020-12-22 11:07:34,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 538 transitions. [2020-12-22 11:07:34,309 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 538 transitions. Word has length 11 [2020-12-22 11:07:34,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:07:34,310 INFO L481 AbstractCegarLoop]: Abstraction has 210 states and 538 transitions. [2020-12-22 11:07:34,310 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:07:34,310 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 538 transitions. [2020-12-22 11:07:34,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-22 11:07:34,311 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:07:34,311 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:07:34,311 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 11:07:34,311 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:07:34,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:07:34,312 INFO L82 PathProgramCache]: Analyzing trace with hash -1430850506, now seen corresponding path program 1 times [2020-12-22 11:07:34,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:07:34,312 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278815582] [2020-12-22 11:07:34,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:07:34,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:07:34,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:07:34,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278815582] [2020-12-22 11:07:34,373 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:07:34,373 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:07:34,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982760867] [2020-12-22 11:07:34,374 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 11:07:34,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:07:34,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 11:07:34,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:07:34,375 INFO L87 Difference]: Start difference. First operand 210 states and 538 transitions. Second operand 6 states. [2020-12-22 11:07:34,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:07:34,420 INFO L93 Difference]: Finished difference Result 300 states and 745 transitions. [2020-12-22 11:07:34,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:07:34,420 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2020-12-22 11:07:34,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:07:34,422 INFO L225 Difference]: With dead ends: 300 [2020-12-22 11:07:34,422 INFO L226 Difference]: Without dead ends: 180 [2020-12-22 11:07:34,423 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-12-22 11:07:34,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-12-22 11:07:34,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 156. [2020-12-22 11:07:34,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-12-22 11:07:34,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 390 transitions. [2020-12-22 11:07:34,429 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 390 transitions. Word has length 12 [2020-12-22 11:07:34,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:07:34,430 INFO L481 AbstractCegarLoop]: Abstraction has 156 states and 390 transitions. [2020-12-22 11:07:34,430 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 11:07:34,430 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 390 transitions. [2020-12-22 11:07:34,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-22 11:07:34,431 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:07:34,431 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:07:34,431 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 11:07:34,431 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:07:34,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:07:34,432 INFO L82 PathProgramCache]: Analyzing trace with hash -1400741867, now seen corresponding path program 1 times [2020-12-22 11:07:34,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:07:34,432 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356280701] [2020-12-22 11:07:34,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:07:34,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:07:34,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:07:34,480 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356280701] [2020-12-22 11:07:34,481 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:07:34,481 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:07:34,481 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086425711] [2020-12-22 11:07:34,482 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:07:34,482 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:07:34,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:07:34,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:07:34,483 INFO L87 Difference]: Start difference. First operand 156 states and 390 transitions. Second operand 5 states. [2020-12-22 11:07:34,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:07:34,528 INFO L93 Difference]: Finished difference Result 254 states and 611 transitions. [2020-12-22 11:07:34,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 11:07:34,529 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-12-22 11:07:34,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:07:34,530 INFO L225 Difference]: With dead ends: 254 [2020-12-22 11:07:34,530 INFO L226 Difference]: Without dead ends: 144 [2020-12-22 11:07:34,531 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 11:07:34,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-12-22 11:07:34,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 120. [2020-12-22 11:07:34,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-12-22 11:07:34,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 282 transitions. [2020-12-22 11:07:34,537 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 282 transitions. Word has length 12 [2020-12-22 11:07:34,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:07:34,537 INFO L481 AbstractCegarLoop]: Abstraction has 120 states and 282 transitions. [2020-12-22 11:07:34,537 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:07:34,537 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 282 transitions. [2020-12-22 11:07:34,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-22 11:07:34,538 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:07:34,538 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:07:34,538 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 11:07:34,538 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:07:34,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:07:34,539 INFO L82 PathProgramCache]: Analyzing trace with hash -1013965314, now seen corresponding path program 2 times [2020-12-22 11:07:34,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:07:34,539 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903723605] [2020-12-22 11:07:34,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:07:34,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:07:34,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:07:34,589 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903723605] [2020-12-22 11:07:34,589 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:07:34,589 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:07:34,590 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184544676] [2020-12-22 11:07:34,590 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:07:34,590 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:07:34,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:07:34,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:07:34,591 INFO L87 Difference]: Start difference. First operand 120 states and 282 transitions. Second operand 5 states. [2020-12-22 11:07:34,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:07:34,631 INFO L93 Difference]: Finished difference Result 134 states and 299 transitions. [2020-12-22 11:07:34,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:07:34,631 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-12-22 11:07:34,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:07:34,632 INFO L225 Difference]: With dead ends: 134 [2020-12-22 11:07:34,632 INFO L226 Difference]: Without dead ends: 56 [2020-12-22 11:07:34,633 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 11:07:34,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-12-22 11:07:34,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-12-22 11:07:34,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-12-22 11:07:34,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 113 transitions. [2020-12-22 11:07:34,636 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 113 transitions. Word has length 12 [2020-12-22 11:07:34,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:07:34,636 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 113 transitions. [2020-12-22 11:07:34,636 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:07:34,637 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 113 transitions. [2020-12-22 11:07:34,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-22 11:07:34,637 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:07:34,637 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:07:34,637 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 11:07:34,637 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:07:34,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:07:34,638 INFO L82 PathProgramCache]: Analyzing trace with hash 776645246, now seen corresponding path program 1 times [2020-12-22 11:07:34,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:07:34,639 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168320344] [2020-12-22 11:07:34,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:07:34,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:07:34,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:07:34,691 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168320344] [2020-12-22 11:07:34,691 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:07:34,691 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:07:34,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35900303] [2020-12-22 11:07:34,691 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:07:34,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:07:34,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:07:34,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:07:34,693 INFO L87 Difference]: Start difference. First operand 56 states and 113 transitions. Second operand 4 states. [2020-12-22 11:07:34,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:07:34,738 INFO L93 Difference]: Finished difference Result 58 states and 102 transitions. [2020-12-22 11:07:34,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 11:07:34,739 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-12-22 11:07:34,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:07:34,740 INFO L225 Difference]: With dead ends: 58 [2020-12-22 11:07:34,740 INFO L226 Difference]: Without dead ends: 45 [2020-12-22 11:07:34,740 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 [2020-12-22 11:07:34,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-12-22 11:07:34,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-12-22 11:07:34,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-12-22 11:07:34,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 78 transitions. [2020-12-22 11:07:34,743 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 78 transitions. Word has length 13 [2020-12-22 11:07:34,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:07:34,743 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 78 transitions. [2020-12-22 11:07:34,744 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:07:34,744 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 78 transitions. [2020-12-22 11:07:34,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-22 11:07:34,744 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:07:34,744 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:07:34,745 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 11:07:34,745 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:07:34,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:07:34,745 INFO L82 PathProgramCache]: Analyzing trace with hash -809970744, now seen corresponding path program 1 times [2020-12-22 11:07:34,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:07:34,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025838989] [2020-12-22 11:07:34,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:07:34,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:07:34,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:07:34,859 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025838989] [2020-12-22 11:07:34,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:07:34,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:07:34,860 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473953498] [2020-12-22 11:07:34,860 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:07:34,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:07:34,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:07:34,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:07:34,862 INFO L87 Difference]: Start difference. First operand 45 states and 78 transitions. Second operand 5 states. [2020-12-22 11:07:34,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:07:34,904 INFO L93 Difference]: Finished difference Result 35 states and 51 transitions. [2020-12-22 11:07:34,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:07:34,905 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-12-22 11:07:34,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:07:34,906 INFO L225 Difference]: With dead ends: 35 [2020-12-22 11:07:34,906 INFO L226 Difference]: Without dead ends: 27 [2020-12-22 11:07:34,907 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-22 11:07:34,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-12-22 11:07:34,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-12-22 11:07:34,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-12-22 11:07:34,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2020-12-22 11:07:34,909 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 14 [2020-12-22 11:07:34,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:07:34,909 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2020-12-22 11:07:34,909 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:07:34,909 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2020-12-22 11:07:34,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-22 11:07:34,910 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:07:34,910 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:07:34,910 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 11:07:34,910 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:07:34,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:07:34,911 INFO L82 PathProgramCache]: Analyzing trace with hash -145595207, now seen corresponding path program 1 times [2020-12-22 11:07:34,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:07:34,912 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863526798] [2020-12-22 11:07:34,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:07:34,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:07:35,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:07:35,003 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863526798] [2020-12-22 11:07:35,003 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:07:35,004 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 11:07:35,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364701960] [2020-12-22 11:07:35,004 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 11:07:35,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:07:35,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 11:07:35,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:07:35,006 INFO L87 Difference]: Start difference. First operand 27 states and 36 transitions. Second operand 6 states. [2020-12-22 11:07:35,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:07:35,049 INFO L93 Difference]: Finished difference Result 21 states and 28 transitions. [2020-12-22 11:07:35,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:07:35,050 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-12-22 11:07:35,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:07:35,051 INFO L225 Difference]: With dead ends: 21 [2020-12-22 11:07:35,051 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 11:07:35,051 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-12-22 11:07:35,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 11:07:35,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 11:07:35,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 11:07:35,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 11:07:35,052 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-12-22 11:07:35,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:07:35,052 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 11:07:35,052 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 11:07:35,054 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 11:07:35,054 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 11:07:35,054 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 11:07:35,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 11:07:35 BasicIcfg [2020-12-22 11:07:35,058 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 11:07:35,059 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 11:07:35,059 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 11:07:35,059 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 11:07:35,060 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:07:28" (3/4) ... [2020-12-22 11:07:35,065 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 11:07:35,075 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-12-22 11:07:35,075 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-12-22 11:07:35,075 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-12-22 11:07:35,083 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-12-22 11:07:35,083 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-22 11:07:35,083 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 11:07:35,084 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 11:07:35,150 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/pthread-wmm/safe009_tso.oepc.i-witness.graphml [2020-12-22 11:07:35,150 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 11:07:35,152 INFO L168 Benchmark]: Toolchain (without parser) took 7688.05 ms. Allocated memory was 151.0 MB in the beginning and 220.2 MB in the end (delta: 69.2 MB). Free memory was 124.7 MB in the beginning and 163.5 MB in the end (delta: -38.8 MB). Peak memory consumption was 30.6 MB. Max. memory is 8.0 GB. [2020-12-22 11:07:35,156 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory is still 124.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 11:07:35,158 INFO L168 Benchmark]: CACSL2BoogieTranslator took 623.10 ms. Allocated memory is still 151.0 MB. Free memory was 124.5 MB in the beginning and 125.2 MB in the end (delta: -694.6 kB). Peak memory consumption was 27.0 MB. Max. memory is 8.0 GB. [2020-12-22 11:07:35,159 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.75 ms. Allocated memory is still 151.0 MB. Free memory was 125.2 MB in the beginning and 123.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:07:35,161 INFO L168 Benchmark]: Boogie Preprocessor took 29.24 ms. Allocated memory is still 151.0 MB. Free memory was 123.1 MB in the beginning and 121.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:07:35,162 INFO L168 Benchmark]: RCFGBuilder took 581.19 ms. Allocated memory is still 151.0 MB. Free memory was 121.5 MB in the beginning and 99.5 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-12-22 11:07:35,162 INFO L168 Benchmark]: TraceAbstraction took 6296.54 ms. Allocated memory was 151.0 MB in the beginning and 220.2 MB in the end (delta: 69.2 MB). Free memory was 98.9 MB in the beginning and 166.1 MB in the end (delta: -67.2 MB). Peak memory consumption was 2.5 MB. Max. memory is 8.0 GB. [2020-12-22 11:07:35,163 INFO L168 Benchmark]: Witness Printer took 91.87 ms. Allocated memory is still 220.2 MB. Free memory was 166.1 MB in the beginning and 163.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:07:35,171 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory is still 124.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 623.10 ms. Allocated memory is still 151.0 MB. Free memory was 124.5 MB in the beginning and 125.2 MB in the end (delta: -694.6 kB). Peak memory consumption was 27.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 56.75 ms. Allocated memory is still 151.0 MB. Free memory was 125.2 MB in the beginning and 123.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 29.24 ms. Allocated memory is still 151.0 MB. Free memory was 123.1 MB in the beginning and 121.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 581.19 ms. Allocated memory is still 151.0 MB. Free memory was 121.5 MB in the beginning and 99.5 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6296.54 ms. Allocated memory was 151.0 MB in the beginning and 220.2 MB in the end (delta: 69.2 MB). Free memory was 98.9 MB in the beginning and 166.1 MB in the end (delta: -67.2 MB). Peak memory consumption was 2.5 MB. Max. memory is 8.0 GB. * Witness Printer took 91.87 ms. Allocated memory is still 220.2 MB. Free memory was 166.1 MB in the beginning and 163.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 799 VarBasedMoverChecksPositive, 35 VarBasedMoverChecksNegative, 7 SemBasedMoverChecksPositive, 28 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 65 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.9s, 81 PlacesBefore, 31 PlacesAfterwards, 73 TransitionsBefore, 22 TransitionsAfterwards, 1220 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 61 TotalNumberOfCompositions, 2044 MoverChecksTotal - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 72 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.0s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.9s, HoareTripleCheckerStatistics: 236 SDtfs, 261 SDslu, 362 SDs, 0 SdLazy, 136 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=282occurred 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: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 188 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 126 NumberOfCodeBlocks, 126 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 115 ConstructedInterpolants, 0 QuantifiedInterpolants, 5242 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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...