/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe000_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 21:59:19,610 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 21:59:19,614 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 21:59:19,659 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 21:59:19,659 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 21:59:19,669 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 21:59:19,671 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 21:59:19,673 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 21:59:19,675 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 21:59:19,676 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 21:59:19,677 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 21:59:19,678 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 21:59:19,679 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 21:59:19,679 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 21:59:19,682 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 21:59:19,684 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 21:59:19,685 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 21:59:19,688 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 21:59:19,691 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 21:59:19,694 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 21:59:19,696 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 21:59:19,699 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 21:59:19,700 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 21:59:19,702 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 21:59:19,708 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-21 21:59:19,708 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-21 21:59:19,708 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-21 21:59:19,711 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-21 21:59:19,711 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-21 21:59:19,713 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-21 21:59:19,713 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-21 21:59:19,714 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-21 21:59:19,714 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-21 21:59:19,715 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-21 21:59:19,716 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-21 21:59:19,716 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-21 21:59:19,717 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-21 21:59:19,717 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-21 21:59:19,717 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 21:59:19,719 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 21:59:19,720 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 21:59:19,721 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-21 21:59:19,763 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 21:59:19,763 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 21:59:19,765 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 21:59:19,765 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 21:59:19,766 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 21:59:19,766 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 21:59:19,766 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 21:59:19,767 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 21:59:19,767 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 21:59:19,767 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 21:59:19,768 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 21:59:19,768 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 21:59:19,769 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 21:59:19,769 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 21:59:19,769 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 21:59:19,769 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 21:59:19,769 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 21:59:19,770 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 21:59:19,770 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 21:59:19,770 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 21:59:19,770 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 21:59:19,770 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 21:59:19,771 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 21:59:19,771 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-21 21:59:19,771 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 21:59:19,771 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 21:59:19,771 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 21:59:19,772 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 21:59:19,772 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-21 21:59:19,772 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-21 21:59:20,046 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 21:59:20,061 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 21:59:20,064 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 21:59:20,065 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 21:59:20,066 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 21:59:20,069 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe000_tso.opt.i [2020-10-21 21:59:20,140 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/349869ff6/82fd0cc876174b94854346feadaa5e63/FLAGe0e407354 [2020-10-21 21:59:20,629 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 21:59:20,629 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe000_tso.opt.i [2020-10-21 21:59:20,643 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/349869ff6/82fd0cc876174b94854346feadaa5e63/FLAGe0e407354 [2020-10-21 21:59:20,925 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/349869ff6/82fd0cc876174b94854346feadaa5e63 [2020-10-21 21:59:20,933 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 21:59:20,940 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 21:59:20,941 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 21:59:20,941 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 21:59:20,944 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 21:59:20,945 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 09:59:20" (1/1) ... [2020-10-21 21:59:20,948 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7993f11e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:59:20, skipping insertion in model container [2020-10-21 21:59:20,948 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 09:59:20" (1/1) ... [2020-10-21 21:59:20,955 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 21:59:21,003 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 21:59:21,475 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 21:59:21,484 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 21:59:21,530 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 21:59:21,606 INFO L208 MainTranslator]: Completed translation [2020-10-21 21:59:21,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:59:21 WrapperNode [2020-10-21 21:59:21,607 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 21:59:21,608 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 21:59:21,608 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 21:59:21,608 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 21:59:21,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:59:21" (1/1) ... [2020-10-21 21:59:21,633 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:59:21" (1/1) ... [2020-10-21 21:59:21,656 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 21:59:21,657 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 21:59:21,657 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 21:59:21,657 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 21:59:21,664 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:59:21" (1/1) ... [2020-10-21 21:59:21,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:59:21" (1/1) ... [2020-10-21 21:59:21,667 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:59:21" (1/1) ... [2020-10-21 21:59:21,668 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:59:21" (1/1) ... [2020-10-21 21:59:21,674 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:59:21" (1/1) ... [2020-10-21 21:59:21,676 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:59:21" (1/1) ... [2020-10-21 21:59:21,678 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:59:21" (1/1) ... [2020-10-21 21:59:21,681 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 21:59:21,682 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 21:59:21,682 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 21:59:21,682 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 21:59:21,683 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:59:21" (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 [2020-10-21 21:59:21,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 21:59:21,751 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-21 21:59:21,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 21:59:21,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 21:59:21,752 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-21 21:59:21,752 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-21 21:59:21,752 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-21 21:59:21,752 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-21 21:59:21,752 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-21 21:59:21,753 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-21 21:59:21,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 21:59:21,753 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-21 21:59:21,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 21:59:21,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 21:59:21,755 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-21 21:59:22,150 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 21:59:22,151 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-21 21:59:22,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 09:59:22 BoogieIcfgContainer [2020-10-21 21:59:22,153 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 21:59:22,155 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 21:59:22,155 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 21:59:22,158 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 21:59:22,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 09:59:20" (1/3) ... [2020-10-21 21:59:22,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c8c4a84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 09:59:22, skipping insertion in model container [2020-10-21 21:59:22,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:59:21" (2/3) ... [2020-10-21 21:59:22,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c8c4a84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 09:59:22, skipping insertion in model container [2020-10-21 21:59:22,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 09:59:22" (3/3) ... [2020-10-21 21:59:22,162 INFO L111 eAbstractionObserver]: Analyzing ICFG safe000_tso.opt.i [2020-10-21 21:59:22,173 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 21:59:22,174 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-21 21:59:22,181 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-21 21:59:22,182 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 21:59:22,210 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:22,211 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:22,211 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:22,211 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:22,212 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:22,212 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:22,212 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:22,213 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:22,213 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:22,213 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:22,213 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:22,214 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:22,214 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:22,214 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:22,214 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:22,214 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:22,215 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:22,215 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:22,219 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:22,219 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:22,219 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:22,219 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:22,225 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:22,225 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:22,226 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:22,226 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:22,229 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:22,229 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:22,229 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:22,230 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:22,234 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-21 21:59:22,247 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-21 21:59:22,268 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 21:59:22,268 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 21:59:22,268 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-21 21:59:22,268 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 21:59:22,268 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 21:59:22,269 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 21:59:22,269 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 21:59:22,269 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 21:59:22,283 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-21 21:59:22,285 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 79 transitions, 173 flow [2020-10-21 21:59:22,288 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 79 transitions, 173 flow [2020-10-21 21:59:22,290 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 86 places, 79 transitions, 173 flow [2020-10-21 21:59:22,338 INFO L129 PetriNetUnfolder]: 3/76 cut-off events. [2020-10-21 21:59:22,338 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-21 21:59:22,343 INFO L80 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 76 events. 3/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-10-21 21:59:22,346 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-10-21 21:59:24,110 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-10-21 21:59:24,201 INFO L131 LiptonReduction]: Checked pairs total: 2779 [2020-10-21 21:59:24,202 INFO L133 LiptonReduction]: Total number of compositions: 70 [2020-10-21 21:59:24,208 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-10-21 21:59:24,238 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-10-21 21:59:24,240 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-21 21:59:24,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-21 21:59:24,248 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:59:24,248 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:59:24,249 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:59:24,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:59:24,254 INFO L82 PathProgramCache]: Analyzing trace with hash -460323677, now seen corresponding path program 1 times [2020-10-21 21:59:24,264 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:59:24,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169403495] [2020-10-21 21:59:24,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:59:24,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:59:24,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:59:24,431 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169403495] [2020-10-21 21:59:24,431 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:59:24,432 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 21:59:24,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104576092] [2020-10-21 21:59:24,435 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-21 21:59:24,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:59:24,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-21 21:59:24,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-21 21:59:24,448 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-10-21 21:59:24,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:59:24,480 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-10-21 21:59:24,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-21 21:59:24,481 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-21 21:59:24,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:59:24,498 INFO L225 Difference]: With dead ends: 362 [2020-10-21 21:59:24,499 INFO L226 Difference]: Without dead ends: 298 [2020-10-21 21:59:24,500 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 [2020-10-21 21:59:24,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-21 21:59:24,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-21 21:59:24,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-21 21:59:24,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-10-21 21:59:24,591 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-10-21 21:59:24,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:59:24,592 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-10-21 21:59:24,592 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-21 21:59:24,592 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-10-21 21:59:24,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-21 21:59:24,594 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:59:24,597 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:59:24,598 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 21:59:24,598 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:59:24,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:59:24,598 INFO L82 PathProgramCache]: Analyzing trace with hash -1385173359, now seen corresponding path program 1 times [2020-10-21 21:59:24,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:59:24,599 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273424180] [2020-10-21 21:59:24,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:59:24,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:59:24,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:59:24,774 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273424180] [2020-10-21 21:59:24,774 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:59:24,774 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 21:59:24,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213097264] [2020-10-21 21:59:24,776 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 21:59:24,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:59:24,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 21:59:24,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-21 21:59:24,777 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 5 states. [2020-10-21 21:59:24,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:59:24,840 INFO L93 Difference]: Finished difference Result 330 states and 912 transitions. [2020-10-21 21:59:24,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-21 21:59:24,841 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-10-21 21:59:24,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:59:24,844 INFO L225 Difference]: With dead ends: 330 [2020-10-21 21:59:24,844 INFO L226 Difference]: Without dead ends: 266 [2020-10-21 21:59:24,845 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-21 21:59:24,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-10-21 21:59:24,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-10-21 21:59:24,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-10-21 21:59:24,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 752 transitions. [2020-10-21 21:59:24,867 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 752 transitions. Word has length 9 [2020-10-21 21:59:24,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:59:24,867 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 752 transitions. [2020-10-21 21:59:24,867 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 21:59:24,867 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 752 transitions. [2020-10-21 21:59:24,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-21 21:59:24,869 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:59:24,869 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:59:24,869 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-21 21:59:24,869 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:59:24,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:59:24,870 INFO L82 PathProgramCache]: Analyzing trace with hash 9178769, now seen corresponding path program 1 times [2020-10-21 21:59:24,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:59:24,870 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659073858] [2020-10-21 21:59:24,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:59:24,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:59:24,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:59:24,943 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659073858] [2020-10-21 21:59:24,943 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:59:24,943 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 21:59:24,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686662339] [2020-10-21 21:59:24,944 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 21:59:24,944 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:59:24,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 21:59:24,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-21 21:59:24,945 INFO L87 Difference]: Start difference. First operand 266 states and 752 transitions. Second operand 5 states. [2020-10-21 21:59:24,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:59:24,994 INFO L93 Difference]: Finished difference Result 290 states and 786 transitions. [2020-10-21 21:59:24,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-21 21:59:24,995 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-21 21:59:24,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:59:24,997 INFO L225 Difference]: With dead ends: 290 [2020-10-21 21:59:24,997 INFO L226 Difference]: Without dead ends: 242 [2020-10-21 21:59:24,997 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-21 21:59:24,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-10-21 21:59:25,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2020-10-21 21:59:25,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-10-21 21:59:25,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 670 transitions. [2020-10-21 21:59:25,011 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 670 transitions. Word has length 10 [2020-10-21 21:59:25,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:59:25,012 INFO L481 AbstractCegarLoop]: Abstraction has 242 states and 670 transitions. [2020-10-21 21:59:25,012 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 21:59:25,012 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 670 transitions. [2020-10-21 21:59:25,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-21 21:59:25,014 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:59:25,014 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:59:25,014 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-21 21:59:25,014 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:59:25,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:59:25,015 INFO L82 PathProgramCache]: Analyzing trace with hash 1127596450, now seen corresponding path program 1 times [2020-10-21 21:59:25,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:59:25,015 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28324989] [2020-10-21 21:59:25,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:59:25,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:59:25,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:59:25,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28324989] [2020-10-21 21:59:25,087 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:59:25,087 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 21:59:25,087 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616129014] [2020-10-21 21:59:25,087 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 21:59:25,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:59:25,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 21:59:25,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 21:59:25,088 INFO L87 Difference]: Start difference. First operand 242 states and 670 transitions. Second operand 4 states. [2020-10-21 21:59:25,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:59:25,106 INFO L93 Difference]: Finished difference Result 260 states and 694 transitions. [2020-10-21 21:59:25,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 21:59:25,106 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-21 21:59:25,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:59:25,108 INFO L225 Difference]: With dead ends: 260 [2020-10-21 21:59:25,108 INFO L226 Difference]: Without dead ends: 224 [2020-10-21 21:59:25,109 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 [2020-10-21 21:59:25,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2020-10-21 21:59:25,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2020-10-21 21:59:25,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-10-21 21:59:25,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 610 transitions. [2020-10-21 21:59:25,118 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 610 transitions. Word has length 11 [2020-10-21 21:59:25,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:59:25,118 INFO L481 AbstractCegarLoop]: Abstraction has 224 states and 610 transitions. [2020-10-21 21:59:25,119 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 21:59:25,119 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 610 transitions. [2020-10-21 21:59:25,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-21 21:59:25,120 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:59:25,121 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:59:25,121 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-21 21:59:25,121 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:59:25,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:59:25,121 INFO L82 PathProgramCache]: Analyzing trace with hash 1343804868, now seen corresponding path program 1 times [2020-10-21 21:59:25,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:59:25,122 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521270883] [2020-10-21 21:59:25,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:59:25,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:59:25,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:59:25,180 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521270883] [2020-10-21 21:59:25,180 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:59:25,180 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 21:59:25,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453182098] [2020-10-21 21:59:25,181 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 21:59:25,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:59:25,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 21:59:25,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-21 21:59:25,182 INFO L87 Difference]: Start difference. First operand 224 states and 610 transitions. Second operand 5 states. [2020-10-21 21:59:25,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:59:25,219 INFO L93 Difference]: Finished difference Result 293 states and 773 transitions. [2020-10-21 21:59:25,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-21 21:59:25,220 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-21 21:59:25,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:59:25,221 INFO L225 Difference]: With dead ends: 293 [2020-10-21 21:59:25,221 INFO L226 Difference]: Without dead ends: 146 [2020-10-21 21:59:25,222 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-21 21:59:25,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-10-21 21:59:25,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-10-21 21:59:25,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-10-21 21:59:25,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 358 transitions. [2020-10-21 21:59:25,227 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 358 transitions. Word has length 12 [2020-10-21 21:59:25,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:59:25,228 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 358 transitions. [2020-10-21 21:59:25,228 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 21:59:25,228 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 358 transitions. [2020-10-21 21:59:25,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-21 21:59:25,229 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:59:25,229 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:59:25,229 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-21 21:59:25,229 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:59:25,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:59:25,230 INFO L82 PathProgramCache]: Analyzing trace with hash -365258832, now seen corresponding path program 1 times [2020-10-21 21:59:25,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:59:25,230 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487584854] [2020-10-21 21:59:25,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:59:25,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:59:25,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:59:25,308 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487584854] [2020-10-21 21:59:25,308 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:59:25,308 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 21:59:25,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620933841] [2020-10-21 21:59:25,309 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 21:59:25,309 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:59:25,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 21:59:25,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 21:59:25,309 INFO L87 Difference]: Start difference. First operand 146 states and 358 transitions. Second operand 4 states. [2020-10-21 21:59:25,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:59:25,351 INFO L93 Difference]: Finished difference Result 160 states and 379 transitions. [2020-10-21 21:59:25,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 21:59:25,351 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-21 21:59:25,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:59:25,353 INFO L225 Difference]: With dead ends: 160 [2020-10-21 21:59:25,353 INFO L226 Difference]: Without dead ends: 142 [2020-10-21 21:59:25,353 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 [2020-10-21 21:59:25,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2020-10-21 21:59:25,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2020-10-21 21:59:25,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-10-21 21:59:25,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 344 transitions. [2020-10-21 21:59:25,359 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 344 transitions. Word has length 13 [2020-10-21 21:59:25,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:59:25,359 INFO L481 AbstractCegarLoop]: Abstraction has 142 states and 344 transitions. [2020-10-21 21:59:25,360 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 21:59:25,360 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 344 transitions. [2020-10-21 21:59:25,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-21 21:59:25,364 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:59:25,364 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:59:25,364 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-21 21:59:25,365 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:59:25,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:59:25,365 INFO L82 PathProgramCache]: Analyzing trace with hash 1116620912, now seen corresponding path program 1 times [2020-10-21 21:59:25,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:59:25,366 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420708429] [2020-10-21 21:59:25,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:59:25,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:59:25,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:59:25,446 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420708429] [2020-10-21 21:59:25,446 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:59:25,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 21:59:25,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216112222] [2020-10-21 21:59:25,447 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 21:59:25,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:59:25,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 21:59:25,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-21 21:59:25,449 INFO L87 Difference]: Start difference. First operand 142 states and 344 transitions. Second operand 5 states. [2020-10-21 21:59:25,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:59:25,489 INFO L93 Difference]: Finished difference Result 186 states and 444 transitions. [2020-10-21 21:59:25,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 21:59:25,489 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-21 21:59:25,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:59:25,490 INFO L225 Difference]: With dead ends: 186 [2020-10-21 21:59:25,491 INFO L226 Difference]: Without dead ends: 74 [2020-10-21 21:59:25,491 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-21 21:59:25,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-10-21 21:59:25,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-10-21 21:59:25,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-21 21:59:25,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 164 transitions. [2020-10-21 21:59:25,495 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 164 transitions. Word has length 14 [2020-10-21 21:59:25,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:59:25,495 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 164 transitions. [2020-10-21 21:59:25,496 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 21:59:25,496 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 164 transitions. [2020-10-21 21:59:25,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-21 21:59:25,496 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:59:25,496 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:59:25,497 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-21 21:59:25,497 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:59:25,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:59:25,497 INFO L82 PathProgramCache]: Analyzing trace with hash 1047574954, now seen corresponding path program 1 times [2020-10-21 21:59:25,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:59:25,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000786645] [2020-10-21 21:59:25,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:59:25,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:59:25,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:59:25,579 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000786645] [2020-10-21 21:59:25,580 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:59:25,580 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-21 21:59:25,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675726200] [2020-10-21 21:59:25,581 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-21 21:59:25,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:59:25,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-21 21:59:25,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-21 21:59:25,582 INFO L87 Difference]: Start difference. First operand 74 states and 164 transitions. Second operand 6 states. [2020-10-21 21:59:25,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:59:25,665 INFO L93 Difference]: Finished difference Result 62 states and 132 transitions. [2020-10-21 21:59:25,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-21 21:59:25,665 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-21 21:59:25,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:59:25,666 INFO L225 Difference]: With dead ends: 62 [2020-10-21 21:59:25,666 INFO L226 Difference]: Without dead ends: 0 [2020-10-21 21:59:25,666 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-21 21:59:25,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-21 21:59:25,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-21 21:59:25,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-21 21:59:25,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-21 21:59:25,668 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-10-21 21:59:25,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:59:25,668 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-21 21:59:25,668 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-21 21:59:25,668 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-21 21:59:25,668 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-21 21:59:25,669 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-21 21:59:25,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 09:59:25 BasicIcfg [2020-10-21 21:59:25,676 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-21 21:59:25,679 INFO L168 Benchmark]: Toolchain (without parser) took 4743.44 ms. Allocated memory was 140.5 MB in the beginning and 282.6 MB in the end (delta: 142.1 MB). Free memory was 102.5 MB in the beginning and 250.4 MB in the end (delta: -147.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-21 21:59:25,681 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-21 21:59:25,682 INFO L168 Benchmark]: CACSL2BoogieTranslator took 666.71 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 101.5 MB in the beginning and 159.8 MB in the end (delta: -58.3 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. [2020-10-21 21:59:25,683 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.68 ms. Allocated memory is still 203.9 MB. Free memory was 159.8 MB in the beginning and 157.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-21 21:59:25,684 INFO L168 Benchmark]: Boogie Preprocessor took 24.71 ms. Allocated memory is still 203.9 MB. Free memory was 157.8 MB in the beginning and 155.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-21 21:59:25,687 INFO L168 Benchmark]: RCFGBuilder took 471.43 ms. Allocated memory is still 203.9 MB. Free memory was 155.8 MB in the beginning and 132.2 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. [2020-10-21 21:59:25,688 INFO L168 Benchmark]: TraceAbstraction took 3521.52 ms. Allocated memory was 203.9 MB in the beginning and 282.6 MB in the end (delta: 78.6 MB). Free memory was 131.6 MB in the beginning and 250.4 MB in the end (delta: -118.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-21 21:59:25,695 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 666.71 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 101.5 MB in the beginning and 159.8 MB in the end (delta: -58.3 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.68 ms. Allocated memory is still 203.9 MB. Free memory was 159.8 MB in the beginning and 157.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.71 ms. Allocated memory is still 203.9 MB. Free memory was 157.8 MB in the beginning and 155.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 471.43 ms. Allocated memory is still 203.9 MB. Free memory was 155.8 MB in the beginning and 132.2 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3521.52 ms. Allocated memory was 203.9 MB in the beginning and 282.6 MB in the end (delta: 78.6 MB). Free memory was 131.6 MB in the beginning and 250.4 MB in the end (delta: -118.8 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 963 VarBasedMoverChecksPositive, 32 VarBasedMoverChecksNegative, 6 SemBasedMoverChecksPositive, 26 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 68 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.9s, 86 PlacesBefore, 32 PlacesAfterwards, 79 TransitionsBefore, 23 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 70 TotalNumberOfCompositions, 2779 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: 3.4s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 158 SDtfs, 188 SDslu, 257 SDs, 0 SdLazy, 127 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred 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, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 83 ConstructedInterpolants, 0 QuantifiedInterpolants, 3559 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...