/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe025_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 17:10:06,281 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 17:10:06,284 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 17:10:06,340 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 17:10:06,341 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 17:10:06,345 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 17:10:06,349 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 17:10:06,358 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 17:10:06,361 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 17:10:06,367 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 17:10:06,368 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 17:10:06,370 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 17:10:06,371 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 17:10:06,374 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 17:10:06,376 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 17:10:06,378 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 17:10:06,380 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 17:10:06,383 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 17:10:06,390 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 17:10:06,395 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 17:10:06,398 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 17:10:06,401 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 17:10:06,402 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 17:10:06,403 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 17:10:06,406 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-09 17:10:06,406 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-09 17:10:06,407 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-09 17:10:06,408 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-09 17:10:06,408 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-09 17:10:06,409 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-09 17:10:06,410 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 17:10:06,411 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 17:10:06,412 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 17:10:06,412 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 17:10:06,414 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 17:10:06,414 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 17:10:06,415 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 17:10:06,415 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 17:10:06,415 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 17:10:06,416 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 17:10:06,417 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 17:10:06,418 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf [2020-11-09 17:10:06,460 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 17:10:06,460 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 17:10:06,461 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 17:10:06,462 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 17:10:06,462 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 17:10:06,462 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 17:10:06,462 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 17:10:06,463 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 17:10:06,463 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 17:10:06,463 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 17:10:06,463 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 17:10:06,463 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 17:10:06,464 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 17:10:06,464 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 17:10:06,464 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 17:10:06,464 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 17:10:06,464 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 17:10:06,465 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 17:10:06,465 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 17:10:06,465 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 17:10:06,465 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 17:10:06,465 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 17:10:06,466 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 17:10:06,466 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 17:10:06,466 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 17:10:06,466 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 17:10:06,466 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 17:10:06,467 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-11-09 17:10:06,467 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 17:10:06,467 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 17:10:06,467 INFO L138 SettingsManager]: * Interpolant automaton=MCR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 17:10:06,835 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 17:10:06,868 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 17:10:06,872 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 17:10:06,873 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 17:10:06,874 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 17:10:06,875 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe025_pso.oepc.i [2020-11-09 17:10:06,981 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61f80cbe6/d339675602884d59acaa2ccb138aa97c/FLAG7227780e6 [2020-11-09 17:10:07,927 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 17:10:07,927 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe025_pso.oepc.i [2020-11-09 17:10:07,953 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61f80cbe6/d339675602884d59acaa2ccb138aa97c/FLAG7227780e6 [2020-11-09 17:10:08,143 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61f80cbe6/d339675602884d59acaa2ccb138aa97c [2020-11-09 17:10:08,148 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 17:10:08,155 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 17:10:08,157 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 17:10:08,157 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 17:10:08,161 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 17:10:08,162 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:10:08" (1/1) ... [2020-11-09 17:10:08,165 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e4180ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:08, skipping insertion in model container [2020-11-09 17:10:08,165 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:10:08" (1/1) ... [2020-11-09 17:10:08,174 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 17:10:08,218 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 17:10:08,640 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 17:10:08,654 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 17:10:08,763 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 17:10:08,908 INFO L208 MainTranslator]: Completed translation [2020-11-09 17:10:08,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:08 WrapperNode [2020-11-09 17:10:08,909 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 17:10:08,910 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 17:10:08,911 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 17:10:08,911 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 17:10:08,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:08" (1/1) ... [2020-11-09 17:10:08,937 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:08" (1/1) ... [2020-11-09 17:10:08,963 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 17:10:08,964 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 17:10:08,965 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 17:10:08,965 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 17:10:08,976 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:08" (1/1) ... [2020-11-09 17:10:08,976 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:08" (1/1) ... [2020-11-09 17:10:08,979 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:08" (1/1) ... [2020-11-09 17:10:08,980 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:08" (1/1) ... [2020-11-09 17:10:08,986 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:08" (1/1) ... [2020-11-09 17:10:08,989 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:08" (1/1) ... [2020-11-09 17:10:08,991 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:08" (1/1) ... [2020-11-09 17:10:08,995 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 17:10:08,996 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 17:10:08,996 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 17:10:08,996 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 17:10:08,997 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:08" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 17:10:09,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 17:10:09,084 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 17:10:09,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 17:10:09,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 17:10:09,085 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 17:10:09,086 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 17:10:09,087 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 17:10:09,087 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 17:10:09,088 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-09 17:10:09,088 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-09 17:10:09,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 17:10:09,088 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 17:10:09,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 17:10:09,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 17:10:09,091 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-09 17:10:09,704 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 17:10:09,704 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 17:10:09,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:10:09 BoogieIcfgContainer [2020-11-09 17:10:09,707 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 17:10:09,708 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 17:10:09,709 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 17:10:09,712 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 17:10:09,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:10:08" (1/3) ... [2020-11-09 17:10:09,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@318f54ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:10:09, skipping insertion in model container [2020-11-09 17:10:09,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:08" (2/3) ... [2020-11-09 17:10:09,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@318f54ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:10:09, skipping insertion in model container [2020-11-09 17:10:09,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:10:09" (3/3) ... [2020-11-09 17:10:09,716 INFO L111 eAbstractionObserver]: Analyzing ICFG safe025_pso.oepc.i [2020-11-09 17:10:09,732 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 17:10:09,733 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 17:10:09,736 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 17:10:09,737 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 17:10:09,777 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:09,778 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:09,778 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:09,778 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:09,778 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:09,778 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:09,779 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:09,779 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:09,779 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:09,779 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:09,780 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:09,780 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:09,780 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:09,781 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:09,781 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:09,781 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:09,781 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:09,781 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:09,781 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:09,782 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:09,782 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:09,782 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:09,782 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:09,783 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:09,783 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:09,783 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:09,783 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:09,784 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:09,784 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:09,784 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:09,784 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:09,784 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:09,785 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:09,785 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:09,785 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:09,785 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:09,788 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:09,788 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:09,788 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:09,789 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:09,800 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:09,800 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:09,800 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:09,801 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:09,804 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:09,804 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:09,804 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:09,804 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:09,807 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 17:10:09,820 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-09 17:10:09,845 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 17:10:09,845 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 17:10:09,845 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 17:10:09,845 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 17:10:09,846 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 17:10:09,846 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 17:10:09,846 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 17:10:09,846 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 17:10:09,859 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 17:10:09,860 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 79 transitions, 173 flow [2020-11-09 17:10:09,863 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 79 transitions, 173 flow [2020-11-09 17:10:09,865 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 79 transitions, 173 flow [2020-11-09 17:10:09,925 INFO L129 PetriNetUnfolder]: 3/76 cut-off events. [2020-11-09 17:10:09,925 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 17:10:09,930 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 76 events. 3/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-11-09 17:10:09,933 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-11-09 17:10:13,259 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2020-11-09 17:10:13,422 WARN L194 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 42 [2020-11-09 17:10:14,276 WARN L194 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2020-11-09 17:10:14,404 WARN L194 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 17:10:14,668 WARN L194 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2020-11-09 17:10:14,798 WARN L194 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 17:10:14,985 INFO L131 LiptonReduction]: Checked pairs total: 2926 [2020-11-09 17:10:14,986 INFO L133 LiptonReduction]: Total number of compositions: 72 [2020-11-09 17:10:14,995 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-11-09 17:10:15,040 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-11-09 17:10:15,042 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-11-09 17:10:15,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-09 17:10:15,053 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:10:15,054 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:10:15,055 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:10:15,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:10:15,061 INFO L82 PathProgramCache]: Analyzing trace with hash -1098074663, now seen corresponding path program 1 times [2020-11-09 17:10:15,084 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:10:15,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471966652] [2020-11-09 17:10:15,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:10:15,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:10:15,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:10:15,343 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471966652] [2020-11-09 17:10:15,344 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:10:15,345 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 17:10:15,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [655096773] [2020-11-09 17:10:15,346 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:10:15,350 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:10:15,365 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-11-09 17:10:15,365 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:10:15,370 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:10:15,371 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 17:10:15,372 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:10:15,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 17:10:15,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:10:15,390 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-11-09 17:10:15,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:10:15,444 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-11-09 17:10:15,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 17:10:15,446 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-11-09 17:10:15,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:10:15,462 INFO L225 Difference]: With dead ends: 282 [2020-11-09 17:10:15,462 INFO L226 Difference]: Without dead ends: 218 [2020-11-09 17:10:15,464 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:10:15,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-11-09 17:10:15,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-11-09 17:10:15,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-11-09 17:10:15,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-11-09 17:10:15,547 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-11-09 17:10:15,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:10:15,549 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-11-09 17:10:15,549 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 17:10:15,549 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-11-09 17:10:15,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-09 17:10:15,550 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:10:15,551 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:10:15,551 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 17:10:15,551 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:10:15,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:10:15,552 INFO L82 PathProgramCache]: Analyzing trace with hash 305615834, now seen corresponding path program 1 times [2020-11-09 17:10:15,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:10:15,558 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791624042] [2020-11-09 17:10:15,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:10:15,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:10:15,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:10:15,673 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791624042] [2020-11-09 17:10:15,673 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:10:15,674 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:10:15,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [801029740] [2020-11-09 17:10:15,674 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:10:15,677 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:10:15,679 INFO L252 McrAutomatonBuilder]: Finished intersection with 13 states and 15 transitions. [2020-11-09 17:10:15,679 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:10:15,708 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:10:15,709 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 17:10:15,710 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:10:15,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 17:10:15,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:10:15,712 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 3 states. [2020-11-09 17:10:15,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:10:15,743 INFO L93 Difference]: Finished difference Result 202 states and 544 transitions. [2020-11-09 17:10:15,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 17:10:15,748 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-11-09 17:10:15,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:10:15,751 INFO L225 Difference]: With dead ends: 202 [2020-11-09 17:10:15,751 INFO L226 Difference]: Without dead ends: 202 [2020-11-09 17:10:15,753 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:10:15,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-11-09 17:10:15,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-11-09 17:10:15,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-11-09 17:10:15,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 544 transitions. [2020-11-09 17:10:15,788 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 544 transitions. Word has length 9 [2020-11-09 17:10:15,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:10:15,789 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 544 transitions. [2020-11-09 17:10:15,789 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 17:10:15,789 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-11-09 17:10:15,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-09 17:10:15,792 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:10:15,792 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:10:15,794 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 17:10:15,795 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:10:15,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:10:15,795 INFO L82 PathProgramCache]: Analyzing trace with hash 839872088, now seen corresponding path program 1 times [2020-11-09 17:10:15,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:10:15,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769412598] [2020-11-09 17:10:15,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:10:15,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:10:15,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:10:15,897 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769412598] [2020-11-09 17:10:15,897 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:10:15,897 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 17:10:15,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1123511454] [2020-11-09 17:10:15,898 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:10:15,903 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:10:15,905 INFO L252 McrAutomatonBuilder]: Finished intersection with 17 states and 22 transitions. [2020-11-09 17:10:15,905 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:10:15,947 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:10:15,947 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 17:10:15,948 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:10:15,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 17:10:15,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:10:15,949 INFO L87 Difference]: Start difference. First operand 202 states and 544 transitions. Second operand 3 states. [2020-11-09 17:10:15,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:10:15,957 INFO L93 Difference]: Finished difference Result 194 states and 518 transitions. [2020-11-09 17:10:15,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 17:10:15,959 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-11-09 17:10:15,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:10:15,961 INFO L225 Difference]: With dead ends: 194 [2020-11-09 17:10:15,961 INFO L226 Difference]: Without dead ends: 194 [2020-11-09 17:10:15,962 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:10:15,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2020-11-09 17:10:15,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2020-11-09 17:10:15,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2020-11-09 17:10:15,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 518 transitions. [2020-11-09 17:10:15,974 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 518 transitions. Word has length 10 [2020-11-09 17:10:15,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:10:15,975 INFO L481 AbstractCegarLoop]: Abstraction has 194 states and 518 transitions. [2020-11-09 17:10:15,975 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 17:10:15,975 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 518 transitions. [2020-11-09 17:10:15,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 17:10:15,976 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:10:15,977 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:10:15,977 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 17:10:15,977 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:10:15,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:10:15,978 INFO L82 PathProgramCache]: Analyzing trace with hash 266199867, now seen corresponding path program 1 times [2020-11-09 17:10:15,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:10:15,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736735956] [2020-11-09 17:10:15,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:10:16,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:10:16,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:10:16,129 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736735956] [2020-11-09 17:10:16,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:10:16,130 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:10:16,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1113976375] [2020-11-09 17:10:16,130 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:10:16,131 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:10:16,133 INFO L252 McrAutomatonBuilder]: Finished intersection with 19 states and 25 transitions. [2020-11-09 17:10:16,133 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:10:16,164 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:10:16,201 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:10:16,225 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:10:16,225 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:10:16,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:10:16,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:10:16,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:10:16,228 INFO L87 Difference]: Start difference. First operand 194 states and 518 transitions. Second operand 4 states. [2020-11-09 17:10:16,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:10:16,296 INFO L93 Difference]: Finished difference Result 225 states and 557 transitions. [2020-11-09 17:10:16,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 17:10:16,299 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-09 17:10:16,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:10:16,301 INFO L225 Difference]: With dead ends: 225 [2020-11-09 17:10:16,301 INFO L226 Difference]: Without dead ends: 161 [2020-11-09 17:10:16,302 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:10:16,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2020-11-09 17:10:16,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2020-11-09 17:10:16,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2020-11-09 17:10:16,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 386 transitions. [2020-11-09 17:10:16,318 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 386 transitions. Word has length 11 [2020-11-09 17:10:16,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:10:16,319 INFO L481 AbstractCegarLoop]: Abstraction has 161 states and 386 transitions. [2020-11-09 17:10:16,319 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:10:16,319 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 386 transitions. [2020-11-09 17:10:16,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-09 17:10:16,320 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:10:16,320 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:10:16,321 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 17:10:16,321 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:10:16,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:10:16,322 INFO L82 PathProgramCache]: Analyzing trace with hash -297551950, now seen corresponding path program 1 times [2020-11-09 17:10:16,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:10:16,324 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701140370] [2020-11-09 17:10:16,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:10:16,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:10:16,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:10:16,484 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701140370] [2020-11-09 17:10:16,484 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:10:16,485 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:10:16,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [15625932] [2020-11-09 17:10:16,485 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:10:16,487 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:10:16,489 INFO L252 McrAutomatonBuilder]: Finished intersection with 21 states and 28 transitions. [2020-11-09 17:10:16,489 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:10:16,587 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [3158#(<= ~__unbuffered_cnt~0 0)] [2020-11-09 17:10:16,587 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-09 17:10:16,587 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:10:16,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-09 17:10:16,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-09 17:10:16,588 INFO L87 Difference]: Start difference. First operand 161 states and 386 transitions. Second operand 6 states. [2020-11-09 17:10:16,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:10:16,694 INFO L93 Difference]: Finished difference Result 160 states and 362 transitions. [2020-11-09 17:10:16,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 17:10:16,695 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2020-11-09 17:10:16,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:10:16,696 INFO L225 Difference]: With dead ends: 160 [2020-11-09 17:10:16,696 INFO L226 Difference]: Without dead ends: 123 [2020-11-09 17:10:16,697 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-09 17:10:16,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-11-09 17:10:16,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2020-11-09 17:10:16,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-11-09 17:10:16,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 272 transitions. [2020-11-09 17:10:16,704 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 272 transitions. Word has length 12 [2020-11-09 17:10:16,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:10:16,705 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 272 transitions. [2020-11-09 17:10:16,705 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-09 17:10:16,705 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 272 transitions. [2020-11-09 17:10:16,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-09 17:10:16,706 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:10:16,706 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:10:16,707 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 17:10:16,707 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:10:16,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:10:16,707 INFO L82 PathProgramCache]: Analyzing trace with hash 1813731877, now seen corresponding path program 1 times [2020-11-09 17:10:16,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:10:16,711 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956281592] [2020-11-09 17:10:16,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:10:16,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:10:16,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:10:16,849 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956281592] [2020-11-09 17:10:16,849 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:10:16,849 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 17:10:16,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [559882256] [2020-11-09 17:10:16,850 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:10:16,852 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:10:16,855 INFO L252 McrAutomatonBuilder]: Finished intersection with 23 states and 30 transitions. [2020-11-09 17:10:16,855 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:10:16,932 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [3573#(<= ~__unbuffered_cnt~0 0)] [2020-11-09 17:10:16,932 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-09 17:10:16,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:10:16,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-09 17:10:16,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-09 17:10:16,934 INFO L87 Difference]: Start difference. First operand 123 states and 272 transitions. Second operand 7 states. [2020-11-09 17:10:17,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:10:17,068 INFO L93 Difference]: Finished difference Result 118 states and 260 transitions. [2020-11-09 17:10:17,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 17:10:17,069 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-11-09 17:10:17,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:10:17,070 INFO L225 Difference]: With dead ends: 118 [2020-11-09 17:10:17,070 INFO L226 Difference]: Without dead ends: 108 [2020-11-09 17:10:17,071 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-11-09 17:10:17,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-11-09 17:10:17,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2020-11-09 17:10:17,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-11-09 17:10:17,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 242 transitions. [2020-11-09 17:10:17,078 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 242 transitions. Word has length 14 [2020-11-09 17:10:17,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:10:17,079 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 242 transitions. [2020-11-09 17:10:17,079 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-09 17:10:17,079 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 242 transitions. [2020-11-09 17:10:17,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 17:10:17,084 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:10:17,086 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:10:17,086 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 17:10:17,087 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:10:17,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:10:17,087 INFO L82 PathProgramCache]: Analyzing trace with hash 1641541318, now seen corresponding path program 1 times [2020-11-09 17:10:17,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:10:17,096 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898355123] [2020-11-09 17:10:17,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:10:17,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:10:17,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:10:17,194 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898355123] [2020-11-09 17:10:17,194 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:10:17,194 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:10:17,194 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [437949354] [2020-11-09 17:10:17,195 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:10:17,199 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:10:17,212 INFO L252 McrAutomatonBuilder]: Finished intersection with 54 states and 100 transitions. [2020-11-09 17:10:17,213 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:10:17,433 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:10:17,434 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:10:17,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:10:17,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:10:17,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:10:17,438 INFO L87 Difference]: Start difference. First operand 108 states and 242 transitions. Second operand 4 states. [2020-11-09 17:10:17,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:10:17,474 INFO L93 Difference]: Finished difference Result 133 states and 289 transitions. [2020-11-09 17:10:17,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 17:10:17,475 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-09 17:10:17,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:10:17,476 INFO L225 Difference]: With dead ends: 133 [2020-11-09 17:10:17,476 INFO L226 Difference]: Without dead ends: 54 [2020-11-09 17:10:17,476 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:10:17,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-11-09 17:10:17,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-11-09 17:10:17,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-11-09 17:10:17,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 98 transitions. [2020-11-09 17:10:17,479 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 98 transitions. Word has length 17 [2020-11-09 17:10:17,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:10:17,480 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 98 transitions. [2020-11-09 17:10:17,480 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:10:17,480 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 98 transitions. [2020-11-09 17:10:17,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 17:10:17,481 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:10:17,481 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:10:17,481 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-09 17:10:17,481 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:10:17,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:10:17,482 INFO L82 PathProgramCache]: Analyzing trace with hash -2114303388, now seen corresponding path program 2 times [2020-11-09 17:10:17,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:10:17,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820042010] [2020-11-09 17:10:17,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:10:17,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:10:17,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:10:17,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820042010] [2020-11-09 17:10:17,560 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:10:17,560 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:10:17,560 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2095791673] [2020-11-09 17:10:17,560 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:10:17,562 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:10:17,568 INFO L252 McrAutomatonBuilder]: Finished intersection with 30 states and 41 transitions. [2020-11-09 17:10:17,569 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:10:17,606 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:10:17,606 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:10:17,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:10:17,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:10:17,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:10:17,608 INFO L87 Difference]: Start difference. First operand 54 states and 98 transitions. Second operand 4 states. [2020-11-09 17:10:17,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:10:17,629 INFO L93 Difference]: Finished difference Result 63 states and 111 transitions. [2020-11-09 17:10:17,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 17:10:17,629 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-09 17:10:17,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:10:17,629 INFO L225 Difference]: With dead ends: 63 [2020-11-09 17:10:17,630 INFO L226 Difference]: Without dead ends: 38 [2020-11-09 17:10:17,630 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:10:17,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-11-09 17:10:17,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-11-09 17:10:17,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-11-09 17:10:17,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 62 transitions. [2020-11-09 17:10:17,633 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 62 transitions. Word has length 17 [2020-11-09 17:10:17,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:10:17,633 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 62 transitions. [2020-11-09 17:10:17,633 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:10:17,633 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 62 transitions. [2020-11-09 17:10:17,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 17:10:17,634 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:10:17,634 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:10:17,634 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-09 17:10:17,635 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:10:17,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:10:17,635 INFO L82 PathProgramCache]: Analyzing trace with hash 1534085368, now seen corresponding path program 3 times [2020-11-09 17:10:17,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:10:17,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521983164] [2020-11-09 17:10:17,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:10:17,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:10:17,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:10:17,707 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521983164] [2020-11-09 17:10:17,707 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:10:17,707 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:10:17,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [613550260] [2020-11-09 17:10:17,708 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:10:17,712 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:10:17,717 INFO L252 McrAutomatonBuilder]: Finished intersection with 24 states and 29 transitions. [2020-11-09 17:10:17,718 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:10:17,741 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:10:17,742 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:10:17,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:10:17,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:10:17,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:10:17,745 INFO L87 Difference]: Start difference. First operand 38 states and 62 transitions. Second operand 4 states. [2020-11-09 17:10:17,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:10:17,771 INFO L93 Difference]: Finished difference Result 51 states and 83 transitions. [2020-11-09 17:10:17,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 17:10:17,772 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-09 17:10:17,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:10:17,772 INFO L225 Difference]: With dead ends: 51 [2020-11-09 17:10:17,773 INFO L226 Difference]: Without dead ends: 30 [2020-11-09 17:10:17,773 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:10:17,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-11-09 17:10:17,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-11-09 17:10:17,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-09 17:10:17,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2020-11-09 17:10:17,775 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 17 [2020-11-09 17:10:17,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:10:17,775 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2020-11-09 17:10:17,775 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:10:17,776 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-11-09 17:10:17,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 17:10:17,776 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:10:17,776 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:10:17,776 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-09 17:10:17,777 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:10:17,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:10:17,777 INFO L82 PathProgramCache]: Analyzing trace with hash 172930902, now seen corresponding path program 4 times [2020-11-09 17:10:17,779 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:10:17,779 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057643854] [2020-11-09 17:10:17,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:10:17,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:10:17,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:10:17,839 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057643854] [2020-11-09 17:10:17,840 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:10:17,840 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:10:17,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1351128471] [2020-11-09 17:10:17,842 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:10:17,843 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:10:17,848 INFO L252 McrAutomatonBuilder]: Finished intersection with 24 states and 29 transitions. [2020-11-09 17:10:17,848 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:10:17,872 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:10:17,872 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:10:17,872 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:10:17,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:10:17,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:10:17,873 INFO L87 Difference]: Start difference. First operand 30 states and 44 transitions. Second operand 4 states. [2020-11-09 17:10:17,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:10:17,896 INFO L93 Difference]: Finished difference Result 29 states and 43 transitions. [2020-11-09 17:10:17,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 17:10:17,896 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-09 17:10:17,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:10:17,897 INFO L225 Difference]: With dead ends: 29 [2020-11-09 17:10:17,897 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 17:10:17,897 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:10:17,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 17:10:17,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 17:10:17,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 17:10:17,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 17:10:17,898 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-11-09 17:10:17,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:10:17,898 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 17:10:17,898 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:10:17,898 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 17:10:17,899 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 17:10:17,899 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-09 17:10:17,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:10:17 BasicIcfg [2020-11-09 17:10:17,906 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 17:10:17,909 INFO L168 Benchmark]: Toolchain (without parser) took 9757.45 ms. Allocated memory was 161.5 MB in the beginning and 194.0 MB in the end (delta: 32.5 MB). Free memory was 136.7 MB in the beginning and 81.2 MB in the end (delta: 55.5 MB). Peak memory consumption was 88.3 MB. Max. memory is 8.0 GB. [2020-11-09 17:10:17,910 INFO L168 Benchmark]: CDTParser took 0.72 ms. Allocated memory is still 125.8 MB. Free memory was 102.0 MB in the beginning and 101.8 MB in the end (delta: 131.1 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 17:10:17,911 INFO L168 Benchmark]: CACSL2BoogieTranslator took 752.94 ms. Allocated memory is still 161.5 MB. Free memory was 136.0 MB in the beginning and 136.8 MB in the end (delta: -726.6 kB). Peak memory consumption was 28.9 MB. Max. memory is 8.0 GB. [2020-11-09 17:10:17,917 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.40 ms. Allocated memory is still 161.5 MB. Free memory was 136.8 MB in the beginning and 134.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 17:10:17,919 INFO L168 Benchmark]: Boogie Preprocessor took 30.86 ms. Allocated memory is still 161.5 MB. Free memory was 134.8 MB in the beginning and 133.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 17:10:17,919 INFO L168 Benchmark]: RCFGBuilder took 710.79 ms. Allocated memory is still 161.5 MB. Free memory was 133.3 MB in the beginning and 111.7 MB in the end (delta: 21.6 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-11-09 17:10:17,921 INFO L168 Benchmark]: TraceAbstraction took 8198.14 ms. Allocated memory was 161.5 MB in the beginning and 194.0 MB in the end (delta: 32.5 MB). Free memory was 111.3 MB in the beginning and 81.2 MB in the end (delta: 30.1 MB). Peak memory consumption was 62.5 MB. Max. memory is 8.0 GB. [2020-11-09 17:10:17,931 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.72 ms. Allocated memory is still 125.8 MB. Free memory was 102.0 MB in the beginning and 101.8 MB in the end (delta: 131.1 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 752.94 ms. Allocated memory is still 161.5 MB. Free memory was 136.0 MB in the beginning and 136.8 MB in the end (delta: -726.6 kB). Peak memory consumption was 28.9 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 53.40 ms. Allocated memory is still 161.5 MB. Free memory was 136.8 MB in the beginning and 134.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 30.86 ms. Allocated memory is still 161.5 MB. Free memory was 134.8 MB in the beginning and 133.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 710.79 ms. Allocated memory is still 161.5 MB. Free memory was 133.3 MB in the beginning and 111.7 MB in the end (delta: 21.6 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 8198.14 ms. Allocated memory was 161.5 MB in the beginning and 194.0 MB in the end (delta: 32.5 MB). Free memory was 111.3 MB in the beginning and 81.2 MB in the end (delta: 30.1 MB). Peak memory consumption was 62.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 787 VarBasedMoverChecksPositive, 27 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 52 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 5.1s, 86 PlacesBefore, 31 PlacesAfterwards, 79 TransitionsBefore, 22 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 72 TotalNumberOfCompositions, 2926 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.0s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.1s, HoareTripleCheckerStatistics: 206 SDtfs, 132 SDslu, 271 SDs, 0 SdLazy, 135 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 124 GetRequests, 89 SyntacticMatches, 6 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 132 NumberOfCodeBlocks, 132 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 122 ConstructedInterpolants, 0 QuantifiedInterpolants, 4352 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...