/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/thin002_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 11:15:03,031 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 11:15:03,036 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 11:15:03,099 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 11:15:03,100 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 11:15:03,104 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 11:15:03,109 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 11:15:03,118 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 11:15:03,122 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 11:15:03,129 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 11:15:03,131 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 11:15:03,132 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 11:15:03,133 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 11:15:03,136 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 11:15:03,139 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 11:15:03,141 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 11:15:03,154 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 11:15:03,158 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 11:15:03,165 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 11:15:03,174 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 11:15:03,176 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 11:15:03,178 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 11:15:03,180 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 11:15:03,184 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 11:15:03,188 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 11:15:03,196 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 11:15:03,197 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 11:15:03,200 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 11:15:03,201 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 11:15:03,202 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 11:15:03,203 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 11:15:03,204 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 11:15:03,204 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 11:15:03,204 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 11:15:03,206 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 11:15:03,207 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 11:15:03,208 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 11:15:03,278 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 11:15:03,278 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 11:15:03,282 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 11:15:03,283 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 11:15:03,283 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 11:15:03,283 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 11:15:03,284 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 11:15:03,284 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 11:15:03,284 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 11:15:03,285 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 11:15:03,286 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 11:15:03,287 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 11:15:03,287 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 11:15:03,287 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 11:15:03,287 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 11:15:03,288 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 11:15:03,288 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 11:15:03,288 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 11:15:03,289 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 11:15:03,289 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 11:15:03,289 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 11:15:03,290 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 11:15:03,290 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 11:15:03,290 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 11:15:03,291 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 11:15:03,291 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 11:15:03,695 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 11:15:03,722 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 11:15:03,726 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 11:15:03,727 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 11:15:03,728 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 11:15:03,729 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/thin002_tso.oepc.i [2020-12-22 11:15:03,829 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be76bf552/9f1e4373018445acb663d9b90cda2d41/FLAG3de7318c8 [2020-12-22 11:15:04,593 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 11:15:04,594 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/thin002_tso.oepc.i [2020-12-22 11:15:04,618 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be76bf552/9f1e4373018445acb663d9b90cda2d41/FLAG3de7318c8 [2020-12-22 11:15:04,849 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be76bf552/9f1e4373018445acb663d9b90cda2d41 [2020-12-22 11:15:04,853 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 11:15:04,855 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 11:15:04,857 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 11:15:04,857 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 11:15:04,862 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 11:15:04,863 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:15:04" (1/1) ... [2020-12-22 11:15:04,865 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f09fb2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:15:04, skipping insertion in model container [2020-12-22 11:15:04,865 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:15:04" (1/1) ... [2020-12-22 11:15:04,875 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 11:15:04,946 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 11:15:05,170 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/thin002_tso.oepc.i[950,963] [2020-12-22 11:15:05,455 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:15:05,469 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 11:15:05,489 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/thin002_tso.oepc.i[950,963] [2020-12-22 11:15:05,524 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:15:05,698 INFO L208 MainTranslator]: Completed translation [2020-12-22 11:15:05,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:15:05 WrapperNode [2020-12-22 11:15:05,699 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 11:15:05,701 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 11:15:05,701 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 11:15:05,701 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 11:15:05,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:15:05" (1/1) ... [2020-12-22 11:15:05,728 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:15:05" (1/1) ... [2020-12-22 11:15:05,753 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 11:15:05,754 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 11:15:05,754 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 11:15:05,754 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 11:15:05,764 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:15:05" (1/1) ... [2020-12-22 11:15:05,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:15:05" (1/1) ... [2020-12-22 11:15:05,768 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:15:05" (1/1) ... [2020-12-22 11:15:05,768 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:15:05" (1/1) ... [2020-12-22 11:15:05,775 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:15:05" (1/1) ... [2020-12-22 11:15:05,778 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:15:05" (1/1) ... [2020-12-22 11:15:05,780 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:15:05" (1/1) ... [2020-12-22 11:15:05,783 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 11:15:05,784 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 11:15:05,785 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 11:15:05,785 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 11:15:05,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:15:05" (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 11:15:05,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 11:15:05,891 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-22 11:15:05,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 11:15:05,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 11:15:05,892 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-22 11:15:05,892 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-22 11:15:05,892 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-22 11:15:05,892 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-22 11:15:05,892 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-22 11:15:05,893 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-22 11:15:05,893 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-12-22 11:15:05,893 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-12-22 11:15:05,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 11:15:05,894 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-22 11:15:05,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 11:15:05,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 11:15:05,896 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 11:15:06,447 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 11:15:06,448 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-22 11:15:06,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:15:06 BoogieIcfgContainer [2020-12-22 11:15:06,451 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 11:15:06,453 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 11:15:06,453 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 11:15:06,456 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 11:15:06,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:15:04" (1/3) ... [2020-12-22 11:15:06,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e3bd3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:15:06, skipping insertion in model container [2020-12-22 11:15:06,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:15:05" (2/3) ... [2020-12-22 11:15:06,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e3bd3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:15:06, skipping insertion in model container [2020-12-22 11:15:06,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:15:06" (3/3) ... [2020-12-22 11:15:06,460 INFO L111 eAbstractionObserver]: Analyzing ICFG thin002_tso.oepc.i [2020-12-22 11:15:06,468 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-22 11:15:06,468 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 11:15:06,474 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-22 11:15:06,475 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-22 11:15:06,520 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,521 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,521 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,521 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,522 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,522 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,522 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,522 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,523 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,523 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,524 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,524 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,524 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,525 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,525 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,525 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,525 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,526 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,526 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,526 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,526 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,527 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,527 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,527 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,528 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,528 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,528 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,528 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,529 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,529 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,529 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,529 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,530 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,530 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,530 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,530 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,531 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,531 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,531 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,531 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,532 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,532 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,532 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,532 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,533 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,533 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,533 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,533 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,536 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,536 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,537 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,537 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,542 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,542 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,543 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,543 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,545 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,546 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,546 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,546 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,548 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,549 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,549 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,549 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:06,551 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-22 11:15:06,572 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-12-22 11:15:06,598 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 11:15:06,599 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 11:15:06,599 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 11:15:06,599 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 11:15:06,599 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 11:15:06,600 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 11:15:06,600 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 11:15:06,600 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 11:15:06,615 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-22 11:15:06,618 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 102 places, 91 transitions, 202 flow [2020-12-22 11:15:06,622 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 102 places, 91 transitions, 202 flow [2020-12-22 11:15:06,624 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 102 places, 91 transitions, 202 flow [2020-12-22 11:15:06,679 INFO L129 PetriNetUnfolder]: 2/87 cut-off events. [2020-12-22 11:15:06,680 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-12-22 11:15:06,685 INFO L84 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 87 events. 2/87 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 70 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 70. Up to 2 conditions per place. [2020-12-22 11:15:06,690 INFO L116 LiptonReduction]: Number of co-enabled transitions 2064 [2020-12-22 11:15:10,183 WARN L197 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2020-12-22 11:15:10,297 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-12-22 11:15:10,557 WARN L197 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2020-12-22 11:15:10,672 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-12-22 11:15:10,681 INFO L131 LiptonReduction]: Checked pairs total: 4338 [2020-12-22 11:15:10,682 INFO L133 LiptonReduction]: Total number of compositions: 72 [2020-12-22 11:15:10,693 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 29 transitions, 78 flow [2020-12-22 11:15:10,820 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1450 states. [2020-12-22 11:15:10,823 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states. [2020-12-22 11:15:10,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 11:15:10,837 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:15:10,838 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:15:10,838 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:15:10,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:15:10,852 INFO L82 PathProgramCache]: Analyzing trace with hash -1256759632, now seen corresponding path program 1 times [2020-12-22 11:15:10,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:15:10,864 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093677770] [2020-12-22 11:15:10,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:15:11,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:15:11,146 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 11:15:11,147 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093677770] [2020-12-22 11:15:11,148 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:15:11,148 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:15:11,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597765196] [2020-12-22 11:15:11,155 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 11:15:11,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:15:11,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 11:15:11,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 11:15:11,176 INFO L87 Difference]: Start difference. First operand 1450 states. Second operand 2 states. [2020-12-22 11:15:11,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:15:11,253 INFO L93 Difference]: Finished difference Result 1450 states and 5376 transitions. [2020-12-22 11:15:11,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 11:15:11,255 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-12-22 11:15:11,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:15:11,288 INFO L225 Difference]: With dead ends: 1450 [2020-12-22 11:15:11,289 INFO L226 Difference]: Without dead ends: 1194 [2020-12-22 11:15:11,291 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 11:15:11,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1194 states. [2020-12-22 11:15:11,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1194 to 1194. [2020-12-22 11:15:11,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1194 states. [2020-12-22 11:15:11,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 4352 transitions. [2020-12-22 11:15:11,454 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 4352 transitions. Word has length 10 [2020-12-22 11:15:11,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:15:11,455 INFO L481 AbstractCegarLoop]: Abstraction has 1194 states and 4352 transitions. [2020-12-22 11:15:11,456 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 11:15:11,456 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 4352 transitions. [2020-12-22 11:15:11,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-22 11:15:11,459 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:15:11,459 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:15:11,459 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 11:15:11,459 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:15:11,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:15:11,460 INFO L82 PathProgramCache]: Analyzing trace with hash -304847029, now seen corresponding path program 1 times [2020-12-22 11:15:11,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:15:11,461 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816156271] [2020-12-22 11:15:11,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:15:11,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:15:11,617 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 11:15:11,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816156271] [2020-12-22 11:15:11,619 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:15:11,619 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:15:11,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577910391] [2020-12-22 11:15:11,621 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:15:11,622 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:15:11,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:15:11,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:15:11,625 INFO L87 Difference]: Start difference. First operand 1194 states and 4352 transitions. Second operand 4 states. [2020-12-22 11:15:11,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:15:11,699 INFO L93 Difference]: Finished difference Result 1448 states and 5111 transitions. [2020-12-22 11:15:11,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:15:11,700 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-12-22 11:15:11,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:15:11,712 INFO L225 Difference]: With dead ends: 1448 [2020-12-22 11:15:11,712 INFO L226 Difference]: Without dead ends: 1192 [2020-12-22 11:15:11,713 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 11:15:11,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1192 states. [2020-12-22 11:15:11,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1192 to 1192. [2020-12-22 11:15:11,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1192 states. [2020-12-22 11:15:11,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1192 states to 1192 states and 4342 transitions. [2020-12-22 11:15:11,778 INFO L78 Accepts]: Start accepts. Automaton has 1192 states and 4342 transitions. Word has length 11 [2020-12-22 11:15:11,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:15:11,778 INFO L481 AbstractCegarLoop]: Abstraction has 1192 states and 4342 transitions. [2020-12-22 11:15:11,778 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:15:11,778 INFO L276 IsEmpty]: Start isEmpty. Operand 1192 states and 4342 transitions. [2020-12-22 11:15:11,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-22 11:15:11,785 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:15:11,785 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:15:11,785 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 11:15:11,787 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:15:11,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:15:11,798 INFO L82 PathProgramCache]: Analyzing trace with hash -835567243, now seen corresponding path program 1 times [2020-12-22 11:15:11,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:15:11,799 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552345425] [2020-12-22 11:15:11,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:15:11,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:15:11,963 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 11:15:11,965 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552345425] [2020-12-22 11:15:11,966 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:15:11,966 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:15:11,966 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708229404] [2020-12-22 11:15:11,967 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:15:11,967 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:15:11,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:15:11,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:15:11,973 INFO L87 Difference]: Start difference. First operand 1192 states and 4342 transitions. Second operand 5 states. [2020-12-22 11:15:12,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:15:12,023 INFO L93 Difference]: Finished difference Result 1318 states and 4624 transitions. [2020-12-22 11:15:12,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:15:12,024 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-12-22 11:15:12,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:15:12,034 INFO L225 Difference]: With dead ends: 1318 [2020-12-22 11:15:12,034 INFO L226 Difference]: Without dead ends: 1066 [2020-12-22 11:15:12,034 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:15:12,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2020-12-22 11:15:12,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1066. [2020-12-22 11:15:12,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1066 states. [2020-12-22 11:15:12,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 3808 transitions. [2020-12-22 11:15:12,080 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 3808 transitions. Word has length 12 [2020-12-22 11:15:12,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:15:12,081 INFO L481 AbstractCegarLoop]: Abstraction has 1066 states and 3808 transitions. [2020-12-22 11:15:12,081 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:15:12,081 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 3808 transitions. [2020-12-22 11:15:12,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-22 11:15:12,082 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:15:12,082 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:15:12,083 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 11:15:12,083 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:15:12,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:15:12,084 INFO L82 PathProgramCache]: Analyzing trace with hash -862200397, now seen corresponding path program 1 times [2020-12-22 11:15:12,084 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:15:12,084 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126239752] [2020-12-22 11:15:12,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:15:12,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:15:12,228 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 11:15:12,228 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126239752] [2020-12-22 11:15:12,229 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:15:12,229 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:15:12,230 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442766725] [2020-12-22 11:15:12,230 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:15:12,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:15:12,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:15:12,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:15:12,232 INFO L87 Difference]: Start difference. First operand 1066 states and 3808 transitions. Second operand 5 states. [2020-12-22 11:15:12,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:15:12,338 INFO L93 Difference]: Finished difference Result 1927 states and 6692 transitions. [2020-12-22 11:15:12,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 11:15:12,339 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-12-22 11:15:12,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:15:12,352 INFO L225 Difference]: With dead ends: 1927 [2020-12-22 11:15:12,353 INFO L226 Difference]: Without dead ends: 1384 [2020-12-22 11:15:12,353 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-22 11:15:12,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1384 states. [2020-12-22 11:15:12,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1384 to 1384. [2020-12-22 11:15:12,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1384 states. [2020-12-22 11:15:12,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1384 states to 1384 states and 4860 transitions. [2020-12-22 11:15:12,418 INFO L78 Accepts]: Start accepts. Automaton has 1384 states and 4860 transitions. Word has length 12 [2020-12-22 11:15:12,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:15:12,418 INFO L481 AbstractCegarLoop]: Abstraction has 1384 states and 4860 transitions. [2020-12-22 11:15:12,418 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:15:12,418 INFO L276 IsEmpty]: Start isEmpty. Operand 1384 states and 4860 transitions. [2020-12-22 11:15:12,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-22 11:15:12,421 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:15:12,421 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:15:12,421 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 11:15:12,421 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:15:12,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:15:12,422 INFO L82 PathProgramCache]: Analyzing trace with hash -959570637, now seen corresponding path program 1 times [2020-12-22 11:15:12,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:15:12,422 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269868857] [2020-12-22 11:15:12,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:15:12,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:15:12,493 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 11:15:12,493 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269868857] [2020-12-22 11:15:12,494 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:15:12,494 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:15:12,494 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205165111] [2020-12-22 11:15:12,495 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 11:15:12,495 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:15:12,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 11:15:12,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:15:12,497 INFO L87 Difference]: Start difference. First operand 1384 states and 4860 transitions. Second operand 6 states. [2020-12-22 11:15:12,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:15:12,568 INFO L93 Difference]: Finished difference Result 1579 states and 5434 transitions. [2020-12-22 11:15:12,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:15:12,568 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-12-22 11:15:12,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:15:12,574 INFO L225 Difference]: With dead ends: 1579 [2020-12-22 11:15:12,574 INFO L226 Difference]: Without dead ends: 556 [2020-12-22 11:15:12,575 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-12-22 11:15:12,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2020-12-22 11:15:12,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2020-12-22 11:15:12,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2020-12-22 11:15:12,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 1826 transitions. [2020-12-22 11:15:12,599 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 1826 transitions. Word has length 13 [2020-12-22 11:15:12,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:15:12,599 INFO L481 AbstractCegarLoop]: Abstraction has 556 states and 1826 transitions. [2020-12-22 11:15:12,599 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 11:15:12,600 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 1826 transitions. [2020-12-22 11:15:12,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-22 11:15:12,601 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:15:12,601 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:15:12,601 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 11:15:12,601 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:15:12,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:15:12,602 INFO L82 PathProgramCache]: Analyzing trace with hash 638958007, now seen corresponding path program 1 times [2020-12-22 11:15:12,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:15:12,602 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745203200] [2020-12-22 11:15:12,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:15:12,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:15:12,722 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 11:15:12,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745203200] [2020-12-22 11:15:12,723 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:15:12,723 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:15:12,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980500856] [2020-12-22 11:15:12,724 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 11:15:12,724 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:15:12,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 11:15:12,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:15:12,727 INFO L87 Difference]: Start difference. First operand 556 states and 1826 transitions. Second operand 6 states. [2020-12-22 11:15:12,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:15:12,783 INFO L93 Difference]: Finished difference Result 700 states and 2230 transitions. [2020-12-22 11:15:12,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:15:12,784 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-12-22 11:15:12,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:15:12,787 INFO L225 Difference]: With dead ends: 700 [2020-12-22 11:15:12,787 INFO L226 Difference]: Without dead ends: 316 [2020-12-22 11:15:12,788 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-12-22 11:15:12,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2020-12-22 11:15:12,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 316. [2020-12-22 11:15:12,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 316 states. [2020-12-22 11:15:12,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 934 transitions. [2020-12-22 11:15:12,802 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 934 transitions. Word has length 14 [2020-12-22 11:15:12,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:15:12,802 INFO L481 AbstractCegarLoop]: Abstraction has 316 states and 934 transitions. [2020-12-22 11:15:12,802 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 11:15:12,802 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 934 transitions. [2020-12-22 11:15:12,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-22 11:15:12,804 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:15:12,804 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:15:12,804 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 11:15:12,804 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:15:12,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:15:12,806 INFO L82 PathProgramCache]: Analyzing trace with hash 2113265253, now seen corresponding path program 1 times [2020-12-22 11:15:12,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:15:12,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111605341] [2020-12-22 11:15:12,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:15:12,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:15:12,898 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 11:15:12,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111605341] [2020-12-22 11:15:12,899 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:15:12,899 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:15:12,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23421897] [2020-12-22 11:15:12,899 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:15:12,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:15:12,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:15:12,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:15:12,901 INFO L87 Difference]: Start difference. First operand 316 states and 934 transitions. Second operand 5 states. [2020-12-22 11:15:12,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:15:12,930 INFO L93 Difference]: Finished difference Result 340 states and 974 transitions. [2020-12-22 11:15:12,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:15:12,931 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-12-22 11:15:12,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:15:12,933 INFO L225 Difference]: With dead ends: 340 [2020-12-22 11:15:12,933 INFO L226 Difference]: Without dead ends: 292 [2020-12-22 11:15:12,934 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:15:12,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2020-12-22 11:15:12,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2020-12-22 11:15:12,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2020-12-22 11:15:12,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 846 transitions. [2020-12-22 11:15:12,970 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 846 transitions. Word has length 16 [2020-12-22 11:15:12,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:15:12,970 INFO L481 AbstractCegarLoop]: Abstraction has 292 states and 846 transitions. [2020-12-22 11:15:12,970 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:15:12,970 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 846 transitions. [2020-12-22 11:15:12,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-22 11:15:12,971 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:15:12,971 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:15:12,971 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 11:15:12,971 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:15:12,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:15:12,972 INFO L82 PathProgramCache]: Analyzing trace with hash 1420368766, now seen corresponding path program 1 times [2020-12-22 11:15:12,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:15:12,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506046692] [2020-12-22 11:15:12,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:15:13,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:15:13,078 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 11:15:13,079 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506046692] [2020-12-22 11:15:13,079 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:15:13,079 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:15:13,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262588518] [2020-12-22 11:15:13,080 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 11:15:13,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:15:13,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 11:15:13,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:15:13,081 INFO L87 Difference]: Start difference. First operand 292 states and 846 transitions. Second operand 6 states. [2020-12-22 11:15:13,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:15:13,128 INFO L93 Difference]: Finished difference Result 352 states and 1006 transitions. [2020-12-22 11:15:13,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:15:13,129 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-12-22 11:15:13,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:15:13,130 INFO L225 Difference]: With dead ends: 352 [2020-12-22 11:15:13,130 INFO L226 Difference]: Without dead ends: 154 [2020-12-22 11:15:13,131 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-12-22 11:15:13,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-12-22 11:15:13,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2020-12-22 11:15:13,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-12-22 11:15:13,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 410 transitions. [2020-12-22 11:15:13,137 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 410 transitions. Word has length 17 [2020-12-22 11:15:13,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:15:13,138 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 410 transitions. [2020-12-22 11:15:13,138 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 11:15:13,138 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 410 transitions. [2020-12-22 11:15:13,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-22 11:15:13,138 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:15:13,139 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:15:13,139 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 11:15:13,139 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:15:13,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:15:13,140 INFO L82 PathProgramCache]: Analyzing trace with hash -673573280, now seen corresponding path program 1 times [2020-12-22 11:15:13,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:15:13,140 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887268118] [2020-12-22 11:15:13,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:15:13,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:15:13,199 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 11:15:13,200 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887268118] [2020-12-22 11:15:13,200 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:15:13,200 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:15:13,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127039289] [2020-12-22 11:15:13,201 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 11:15:13,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:15:13,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 11:15:13,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:15:13,202 INFO L87 Difference]: Start difference. First operand 154 states and 410 transitions. Second operand 6 states. [2020-12-22 11:15:13,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:15:13,239 INFO L93 Difference]: Finished difference Result 130 states and 334 transitions. [2020-12-22 11:15:13,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:15:13,239 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-12-22 11:15:13,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:15:13,240 INFO L225 Difference]: With dead ends: 130 [2020-12-22 11:15:13,240 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 11:15:13,240 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-12-22 11:15:13,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 11:15:13,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 11:15:13,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 11:15:13,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 11:15:13,241 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-12-22 11:15:13,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:15:13,241 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 11:15:13,242 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 11:15:13,242 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 11:15:13,242 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 11:15:13,242 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 11:15:13,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 11:15:13 BasicIcfg [2020-12-22 11:15:13,246 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 11:15:13,247 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 11:15:13,247 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 11:15:13,247 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 11:15:13,248 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:15:06" (3/4) ... [2020-12-22 11:15:13,252 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 11:15:13,260 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-12-22 11:15:13,260 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-12-22 11:15:13,260 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-12-22 11:15:13,261 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2020-12-22 11:15:13,267 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2020-12-22 11:15:13,267 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-22 11:15:13,267 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 11:15:13,268 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 11:15:13,316 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/pthread-wmm/thin002_tso.oepc.i-witness.graphml [2020-12-22 11:15:13,316 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 11:15:13,318 INFO L168 Benchmark]: Toolchain (without parser) took 8462.47 ms. Allocated memory was 156.2 MB in the beginning and 225.4 MB in the end (delta: 69.2 MB). Free memory was 130.4 MB in the beginning and 154.6 MB in the end (delta: -24.2 MB). Peak memory consumption was 46.5 MB. Max. memory is 8.0 GB. [2020-12-22 11:15:13,318 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 156.2 MB. Free memory was 129.0 MB in the beginning and 128.9 MB in the end (delta: 80.1 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 11:15:13,319 INFO L168 Benchmark]: CACSL2BoogieTranslator took 842.88 ms. Allocated memory is still 156.2 MB. Free memory was 130.2 MB in the beginning and 130.6 MB in the end (delta: -409.4 kB). Peak memory consumption was 27.0 MB. Max. memory is 8.0 GB. [2020-12-22 11:15:13,319 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.71 ms. Allocated memory is still 156.2 MB. Free memory was 130.6 MB in the beginning and 128.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:15:13,320 INFO L168 Benchmark]: Boogie Preprocessor took 29.56 ms. Allocated memory is still 156.2 MB. Free memory was 128.5 MB in the beginning and 126.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:15:13,321 INFO L168 Benchmark]: RCFGBuilder took 666.43 ms. Allocated memory is still 156.2 MB. Free memory was 126.9 MB in the beginning and 102.3 MB in the end (delta: 24.6 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:15:13,321 INFO L168 Benchmark]: TraceAbstraction took 6793.84 ms. Allocated memory was 156.2 MB in the beginning and 225.4 MB in the end (delta: 69.2 MB). Free memory was 101.8 MB in the beginning and 157.8 MB in the end (delta: -56.0 MB). Peak memory consumption was 14.2 MB. Max. memory is 8.0 GB. [2020-12-22 11:15:13,322 INFO L168 Benchmark]: Witness Printer took 69.26 ms. Allocated memory is still 225.4 MB. Free memory was 157.8 MB in the beginning and 154.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:15:13,325 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 156.2 MB. Free memory was 129.0 MB in the beginning and 128.9 MB in the end (delta: 80.1 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 842.88 ms. Allocated memory is still 156.2 MB. Free memory was 130.2 MB in the beginning and 130.6 MB in the end (delta: -409.4 kB). Peak memory consumption was 27.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 52.71 ms. Allocated memory is still 156.2 MB. Free memory was 130.6 MB in the beginning and 128.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 29.56 ms. Allocated memory is still 156.2 MB. Free memory was 128.5 MB in the beginning and 126.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 666.43 ms. Allocated memory is still 156.2 MB. Free memory was 126.9 MB in the beginning and 102.3 MB in the end (delta: 24.6 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6793.84 ms. Allocated memory was 156.2 MB in the beginning and 225.4 MB in the end (delta: 69.2 MB). Free memory was 101.8 MB in the beginning and 157.8 MB in the end (delta: -56.0 MB). Peak memory consumption was 14.2 MB. Max. memory is 8.0 GB. * Witness Printer took 69.26 ms. Allocated memory is still 225.4 MB. Free memory was 157.8 MB in the beginning and 154.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1519 VarBasedMoverChecksPositive, 57 VarBasedMoverChecksNegative, 13 SemBasedMoverChecksPositive, 44 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.5s, 204 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.0s, 102 PlacesBefore, 41 PlacesAfterwards, 91 TransitionsBefore, 29 TransitionsAfterwards, 2064 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 72 TotalNumberOfCompositions, 4338 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 5 procedures, 90 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.6s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.2s, HoareTripleCheckerStatistics: 273 SDtfs, 376 SDslu, 456 SDs, 0 SdLazy, 106 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1450occurred 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: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 123 NumberOfCodeBlocks, 123 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 114 ConstructedInterpolants, 0 QuantifiedInterpolants, 8206 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...