/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/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin001_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-60655ea [2020-09-16 01:16:34,115 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-16 01:16:34,119 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-16 01:16:34,146 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-16 01:16:34,147 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-16 01:16:34,149 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-16 01:16:34,158 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-16 01:16:34,160 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-16 01:16:34,163 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-16 01:16:34,164 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-16 01:16:34,165 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-16 01:16:34,169 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-16 01:16:34,169 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-16 01:16:34,170 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-16 01:16:34,174 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-16 01:16:34,177 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-16 01:16:34,178 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-16 01:16:34,178 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-16 01:16:34,182 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-16 01:16:34,186 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-16 01:16:34,190 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-16 01:16:34,191 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-16 01:16:34,194 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-16 01:16:34,195 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-16 01:16:34,206 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-16 01:16:34,212 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-16 01:16:34,215 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-16 01:16:34,216 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-16 01:16:34,217 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-16 01:16:34,218 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-16 01:16:34,218 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-16 01:16:34,218 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-16 01:16:34,219 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-16 01:16:34,219 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-16 01:16:34,220 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-16 01:16:34,222 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-16 01:16:34,223 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-09-16 01:16:34,274 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-16 01:16:34,275 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-16 01:16:34,277 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-16 01:16:34,278 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-16 01:16:34,278 INFO L138 SettingsManager]: * Use SBE=true [2020-09-16 01:16:34,278 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-16 01:16:34,278 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-16 01:16:34,278 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-16 01:16:34,279 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-16 01:16:34,279 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-16 01:16:34,280 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-16 01:16:34,280 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-16 01:16:34,281 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-16 01:16:34,281 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-16 01:16:34,281 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-16 01:16:34,281 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-16 01:16:34,282 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-16 01:16:34,282 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-16 01:16:34,282 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-16 01:16:34,282 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-16 01:16:34,282 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-16 01:16:34,283 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-16 01:16:34,283 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-16 01:16:34,283 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-16 01:16:34,283 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-16 01:16:34,283 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-16 01:16:34,284 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-16 01:16:34,284 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-16 01:16:34,284 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-16 01:16:34,284 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-16 01:16:34,284 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-16 01:16:34,749 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-16 01:16:34,766 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-16 01:16:34,770 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-16 01:16:34,772 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-16 01:16:34,773 INFO L275 PluginConnector]: CDTParser initialized [2020-09-16 01:16:34,774 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin001_pso.oepc.i [2020-09-16 01:16:34,854 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bbd1c92ff/a15892a9320b4bbcab8b69065d0b0ed8/FLAG4cb6c5df4 [2020-09-16 01:16:35,576 INFO L306 CDTParser]: Found 1 translation units. [2020-09-16 01:16:35,577 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/thin001_pso.oepc.i [2020-09-16 01:16:35,603 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bbd1c92ff/a15892a9320b4bbcab8b69065d0b0ed8/FLAG4cb6c5df4 [2020-09-16 01:16:35,752 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bbd1c92ff/a15892a9320b4bbcab8b69065d0b0ed8 [2020-09-16 01:16:35,769 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-16 01:16:35,777 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-16 01:16:35,780 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-16 01:16:35,781 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-16 01:16:35,787 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-16 01:16:35,788 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 01:16:35" (1/1) ... [2020-09-16 01:16:35,796 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12fc44ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:16:35, skipping insertion in model container [2020-09-16 01:16:35,796 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 01:16:35" (1/1) ... [2020-09-16 01:16:35,808 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-16 01:16:35,883 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-16 01:16:36,410 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-16 01:16:36,426 INFO L203 MainTranslator]: Completed pre-run [2020-09-16 01:16:36,502 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-16 01:16:36,596 INFO L208 MainTranslator]: Completed translation [2020-09-16 01:16:36,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:16:36 WrapperNode [2020-09-16 01:16:36,598 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-16 01:16:36,599 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-16 01:16:36,599 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-16 01:16:36,599 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-16 01:16:36,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:16:36" (1/1) ... [2020-09-16 01:16:36,633 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:16:36" (1/1) ... [2020-09-16 01:16:36,659 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-16 01:16:36,659 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-16 01:16:36,659 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-16 01:16:36,659 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-16 01:16:36,669 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:16:36" (1/1) ... [2020-09-16 01:16:36,669 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:16:36" (1/1) ... [2020-09-16 01:16:36,673 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:16:36" (1/1) ... [2020-09-16 01:16:36,673 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:16:36" (1/1) ... [2020-09-16 01:16:36,680 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:16:36" (1/1) ... [2020-09-16 01:16:36,683 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:16:36" (1/1) ... [2020-09-16 01:16:36,685 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:16:36" (1/1) ... [2020-09-16 01:16:36,689 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-16 01:16:36,690 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-16 01:16:36,690 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-16 01:16:36,690 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-16 01:16:36,691 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:16:36" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-16 01:16:36,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-16 01:16:36,781 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-16 01:16:36,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-16 01:16:36,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-16 01:16:36,782 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-16 01:16:36,782 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-16 01:16:36,782 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-16 01:16:36,783 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-16 01:16:36,783 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-16 01:16:36,783 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-16 01:16:36,783 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-16 01:16:36,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-16 01:16:36,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-16 01:16:36,786 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-16 01:16:37,186 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-16 01:16:37,187 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-16 01:16:37,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 01:16:37 BoogieIcfgContainer [2020-09-16 01:16:37,192 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-16 01:16:37,194 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-16 01:16:37,194 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-16 01:16:37,198 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-16 01:16:37,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 01:16:35" (1/3) ... [2020-09-16 01:16:37,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13123a57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 01:16:37, skipping insertion in model container [2020-09-16 01:16:37,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:16:36" (2/3) ... [2020-09-16 01:16:37,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13123a57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 01:16:37, skipping insertion in model container [2020-09-16 01:16:37,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 01:16:37" (3/3) ... [2020-09-16 01:16:37,203 INFO L109 eAbstractionObserver]: Analyzing ICFG thin001_pso.oepc.i [2020-09-16 01:16:37,215 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-16 01:16:37,215 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-16 01:16:37,226 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-16 01:16:37,227 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-16 01:16:37,266 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:16:37,266 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:16:37,266 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:16:37,267 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:16:37,267 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:16:37,267 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:16:37,268 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:16:37,268 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:16:37,268 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:16:37,269 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:16:37,269 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:16:37,269 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:16:37,270 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:16:37,270 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:16:37,270 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:16:37,270 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:16:37,271 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:16:37,271 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:16:37,276 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:16:37,276 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:16:37,277 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:16:37,277 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:16:37,284 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:16:37,284 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:16:37,284 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:16:37,285 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:16:37,288 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:16:37,289 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:16:37,289 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:16:37,289 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:16:37,315 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-16 01:16:37,343 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-16 01:16:37,344 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-16 01:16:37,344 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-16 01:16:37,344 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-16 01:16:37,344 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-16 01:16:37,345 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-16 01:16:37,345 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-16 01:16:37,345 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-16 01:16:37,365 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 71 transitions, 157 flow [2020-09-16 01:16:37,367 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-09-16 01:16:37,420 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-09-16 01:16:37,420 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-16 01:16:37,429 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-16 01:16:37,432 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-09-16 01:16:37,455 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-09-16 01:16:37,455 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-16 01:16:37,456 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-16 01:16:37,458 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-09-16 01:16:37,459 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-16 01:16:38,760 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-09-16 01:16:38,868 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2463 [2020-09-16 01:16:38,869 INFO L214 etLargeBlockEncoding]: Total number of compositions: 57 [2020-09-16 01:16:38,878 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-09-16 01:16:38,924 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-09-16 01:16:38,927 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-09-16 01:16:38,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-16 01:16:38,939 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 01:16:38,940 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 01:16:38,940 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 01:16:38,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 01:16:38,948 INFO L82 PathProgramCache]: Analyzing trace with hash -691335731, now seen corresponding path program 1 times [2020-09-16 01:16:38,971 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 01:16:38,972 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046305054] [2020-09-16 01:16:38,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 01:16:39,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 01:16:39,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 01:16:39,189 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046305054] [2020-09-16 01:16:39,190 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 01:16:39,190 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-16 01:16:39,191 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2035890921] [2020-09-16 01:16:39,193 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 01:16:39,196 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 01:16:39,214 INFO L274 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-09-16 01:16:39,214 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 01:16:39,217 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 01:16:39,218 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-16 01:16:39,219 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 01:16:39,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-16 01:16:39,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-16 01:16:39,242 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-09-16 01:16:39,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 01:16:39,269 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-09-16 01:16:39,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-16 01:16:39,270 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-09-16 01:16:39,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 01:16:39,290 INFO L225 Difference]: With dead ends: 362 [2020-09-16 01:16:39,290 INFO L226 Difference]: Without dead ends: 298 [2020-09-16 01:16:39,292 INFO L675 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 [2020-09-16 01:16:39,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-09-16 01:16:39,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-09-16 01:16:39,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-09-16 01:16:39,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-09-16 01:16:39,390 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-09-16 01:16:39,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 01:16:39,391 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-09-16 01:16:39,391 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-16 01:16:39,392 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-09-16 01:16:39,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-16 01:16:39,393 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 01:16:39,393 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 01:16:39,394 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-16 01:16:39,394 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 01:16:39,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 01:16:39,394 INFO L82 PathProgramCache]: Analyzing trace with hash 43425274, now seen corresponding path program 1 times [2020-09-16 01:16:39,395 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 01:16:39,395 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76017580] [2020-09-16 01:16:39,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 01:16:39,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 01:16:39,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 01:16:39,558 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76017580] [2020-09-16 01:16:39,558 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 01:16:39,558 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-16 01:16:39,559 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [687987924] [2020-09-16 01:16:39,559 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 01:16:39,562 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 01:16:39,569 INFO L274 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-09-16 01:16:39,569 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 01:16:39,569 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 01:16:39,571 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-16 01:16:39,571 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 01:16:39,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-16 01:16:39,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-16 01:16:39,572 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-09-16 01:16:39,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 01:16:39,627 INFO L93 Difference]: Finished difference Result 330 states and 912 transitions. [2020-09-16 01:16:39,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-16 01:16:39,628 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-09-16 01:16:39,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 01:16:39,634 INFO L225 Difference]: With dead ends: 330 [2020-09-16 01:16:39,634 INFO L226 Difference]: Without dead ends: 266 [2020-09-16 01:16:39,635 INFO L675 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 [2020-09-16 01:16:39,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-09-16 01:16:39,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-09-16 01:16:39,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-09-16 01:16:39,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 752 transitions. [2020-09-16 01:16:39,679 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 752 transitions. Word has length 9 [2020-09-16 01:16:39,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 01:16:39,679 INFO L479 AbstractCegarLoop]: Abstraction has 266 states and 752 transitions. [2020-09-16 01:16:39,679 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-16 01:16:39,679 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 752 transitions. [2020-09-16 01:16:39,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-16 01:16:39,681 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 01:16:39,681 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 01:16:39,682 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-16 01:16:39,682 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 01:16:39,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 01:16:39,682 INFO L82 PathProgramCache]: Analyzing trace with hash 1345064228, now seen corresponding path program 1 times [2020-09-16 01:16:39,683 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 01:16:39,683 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148375176] [2020-09-16 01:16:39,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 01:16:39,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 01:16:39,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 01:16:39,824 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148375176] [2020-09-16 01:16:39,824 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 01:16:39,824 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-16 01:16:39,825 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [404876189] [2020-09-16 01:16:39,825 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 01:16:39,826 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 01:16:39,827 INFO L274 McrAutomatonBuilder]: Finished intersection with 12 states and 12 transitions. [2020-09-16 01:16:39,828 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 01:16:39,836 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 01:16:39,836 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-16 01:16:39,836 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 01:16:39,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-16 01:16:39,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-16 01:16:39,837 INFO L87 Difference]: Start difference. First operand 266 states and 752 transitions. Second operand 5 states. [2020-09-16 01:16:39,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 01:16:39,912 INFO L93 Difference]: Finished difference Result 290 states and 786 transitions. [2020-09-16 01:16:39,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-16 01:16:39,912 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-09-16 01:16:39,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 01:16:39,915 INFO L225 Difference]: With dead ends: 290 [2020-09-16 01:16:39,915 INFO L226 Difference]: Without dead ends: 242 [2020-09-16 01:16:39,916 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-16 01:16:39,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-09-16 01:16:39,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2020-09-16 01:16:39,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-09-16 01:16:39,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 670 transitions. [2020-09-16 01:16:39,935 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 670 transitions. Word has length 10 [2020-09-16 01:16:39,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 01:16:39,941 INFO L479 AbstractCegarLoop]: Abstraction has 242 states and 670 transitions. [2020-09-16 01:16:39,941 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-16 01:16:39,941 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 670 transitions. [2020-09-16 01:16:39,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-16 01:16:39,948 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 01:16:39,948 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 01:16:39,948 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-16 01:16:39,949 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 01:16:39,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 01:16:39,949 INFO L82 PathProgramCache]: Analyzing trace with hash 1654538757, now seen corresponding path program 1 times [2020-09-16 01:16:39,950 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 01:16:39,950 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872289333] [2020-09-16 01:16:39,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 01:16:39,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 01:16:40,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 01:16:40,039 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872289333] [2020-09-16 01:16:40,039 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 01:16:40,039 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-16 01:16:40,039 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2052490215] [2020-09-16 01:16:40,040 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 01:16:40,041 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 01:16:40,043 INFO L274 McrAutomatonBuilder]: Finished intersection with 20 states and 28 transitions. [2020-09-16 01:16:40,043 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 01:16:40,102 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 01:16:40,103 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-16 01:16:40,103 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 01:16:40,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-16 01:16:40,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-16 01:16:40,104 INFO L87 Difference]: Start difference. First operand 242 states and 670 transitions. Second operand 4 states. [2020-09-16 01:16:40,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 01:16:40,128 INFO L93 Difference]: Finished difference Result 260 states and 694 transitions. [2020-09-16 01:16:40,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-16 01:16:40,129 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-09-16 01:16:40,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 01:16:40,131 INFO L225 Difference]: With dead ends: 260 [2020-09-16 01:16:40,131 INFO L226 Difference]: Without dead ends: 224 [2020-09-16 01:16:40,132 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-16 01:16:40,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2020-09-16 01:16:40,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2020-09-16 01:16:40,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-09-16 01:16:40,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 610 transitions. [2020-09-16 01:16:40,142 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 610 transitions. Word has length 11 [2020-09-16 01:16:40,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 01:16:40,143 INFO L479 AbstractCegarLoop]: Abstraction has 224 states and 610 transitions. [2020-09-16 01:16:40,143 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-16 01:16:40,143 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 610 transitions. [2020-09-16 01:16:40,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-16 01:16:40,145 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 01:16:40,145 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 01:16:40,145 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-16 01:16:40,146 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 01:16:40,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 01:16:40,146 INFO L82 PathProgramCache]: Analyzing trace with hash 368404844, now seen corresponding path program 1 times [2020-09-16 01:16:40,146 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 01:16:40,147 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900318090] [2020-09-16 01:16:40,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 01:16:40,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 01:16:40,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 01:16:40,235 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900318090] [2020-09-16 01:16:40,235 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 01:16:40,236 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-16 01:16:40,236 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [52359948] [2020-09-16 01:16:40,236 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 01:16:40,237 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 01:16:40,241 INFO L274 McrAutomatonBuilder]: Finished intersection with 32 states and 58 transitions. [2020-09-16 01:16:40,242 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 01:16:40,391 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 01:16:40,392 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-16 01:16:40,392 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 01:16:40,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-16 01:16:40,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-16 01:16:40,393 INFO L87 Difference]: Start difference. First operand 224 states and 610 transitions. Second operand 5 states. [2020-09-16 01:16:40,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 01:16:40,461 INFO L93 Difference]: Finished difference Result 293 states and 773 transitions. [2020-09-16 01:16:40,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-16 01:16:40,465 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-09-16 01:16:40,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 01:16:40,466 INFO L225 Difference]: With dead ends: 293 [2020-09-16 01:16:40,467 INFO L226 Difference]: Without dead ends: 146 [2020-09-16 01:16:40,468 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-16 01:16:40,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-09-16 01:16:40,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-09-16 01:16:40,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-09-16 01:16:40,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 358 transitions. [2020-09-16 01:16:40,476 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 358 transitions. Word has length 12 [2020-09-16 01:16:40,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 01:16:40,476 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 358 transitions. [2020-09-16 01:16:40,476 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-16 01:16:40,476 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 358 transitions. [2020-09-16 01:16:40,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-16 01:16:40,482 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 01:16:40,483 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 01:16:40,483 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-16 01:16:40,483 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 01:16:40,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 01:16:40,484 INFO L82 PathProgramCache]: Analyzing trace with hash 257080554, now seen corresponding path program 1 times [2020-09-16 01:16:40,484 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 01:16:40,484 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367942435] [2020-09-16 01:16:40,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 01:16:40,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 01:16:40,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 01:16:40,623 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367942435] [2020-09-16 01:16:40,623 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 01:16:40,624 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-16 01:16:40,627 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [36760753] [2020-09-16 01:16:40,627 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 01:16:40,629 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 01:16:40,635 INFO L274 McrAutomatonBuilder]: Finished intersection with 34 states and 56 transitions. [2020-09-16 01:16:40,635 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 01:16:40,789 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 01:16:40,789 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-16 01:16:40,789 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 01:16:40,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-16 01:16:40,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-16 01:16:40,790 INFO L87 Difference]: Start difference. First operand 146 states and 358 transitions. Second operand 5 states. [2020-09-16 01:16:40,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 01:16:40,842 INFO L93 Difference]: Finished difference Result 176 states and 423 transitions. [2020-09-16 01:16:40,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-16 01:16:40,843 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-09-16 01:16:40,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 01:16:40,844 INFO L225 Difference]: With dead ends: 176 [2020-09-16 01:16:40,844 INFO L226 Difference]: Without dead ends: 98 [2020-09-16 01:16:40,845 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-16 01:16:40,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-09-16 01:16:40,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2020-09-16 01:16:40,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-09-16 01:16:40,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 218 transitions. [2020-09-16 01:16:40,850 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 218 transitions. Word has length 13 [2020-09-16 01:16:40,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 01:16:40,851 INFO L479 AbstractCegarLoop]: Abstraction has 98 states and 218 transitions. [2020-09-16 01:16:40,851 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-16 01:16:40,851 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 218 transitions. [2020-09-16 01:16:40,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-16 01:16:40,852 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 01:16:40,853 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 01:16:40,853 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-16 01:16:40,853 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 01:16:40,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 01:16:40,853 INFO L82 PathProgramCache]: Analyzing trace with hash -647415272, now seen corresponding path program 1 times [2020-09-16 01:16:40,854 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 01:16:40,855 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229453926] [2020-09-16 01:16:40,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 01:16:40,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 01:16:40,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 01:16:40,960 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229453926] [2020-09-16 01:16:40,960 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 01:16:40,960 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-16 01:16:40,961 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2092949469] [2020-09-16 01:16:40,961 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 01:16:40,962 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 01:16:40,967 INFO L274 McrAutomatonBuilder]: Finished intersection with 32 states and 48 transitions. [2020-09-16 01:16:40,968 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 01:16:41,058 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 01:16:41,059 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-16 01:16:41,059 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 01:16:41,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-16 01:16:41,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-16 01:16:41,060 INFO L87 Difference]: Start difference. First operand 98 states and 218 transitions. Second operand 5 states. [2020-09-16 01:16:41,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 01:16:41,107 INFO L93 Difference]: Finished difference Result 86 states and 186 transitions. [2020-09-16 01:16:41,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-16 01:16:41,108 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-09-16 01:16:41,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 01:16:41,108 INFO L225 Difference]: With dead ends: 86 [2020-09-16 01:16:41,109 INFO L226 Difference]: Without dead ends: 0 [2020-09-16 01:16:41,109 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-16 01:16:41,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-16 01:16:41,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-16 01:16:41,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-16 01:16:41,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-16 01:16:41,111 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-09-16 01:16:41,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 01:16:41,111 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-16 01:16:41,111 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-16 01:16:41,111 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-16 01:16:41,111 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-16 01:16:41,112 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-16 01:16:41,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 01:16:41 BasicIcfg [2020-09-16 01:16:41,123 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-16 01:16:41,129 INFO L168 Benchmark]: Toolchain (without parser) took 5353.26 ms. Allocated memory was 142.1 MB in the beginning and 244.3 MB in the end (delta: 102.2 MB). Free memory was 103.9 MB in the beginning and 129.0 MB in the end (delta: -25.2 MB). Peak memory consumption was 77.1 MB. Max. memory is 7.1 GB. [2020-09-16 01:16:41,130 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 142.1 MB. Free memory was 123.6 MB in the beginning and 123.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-16 01:16:41,140 INFO L168 Benchmark]: CACSL2BoogieTranslator took 818.07 ms. Allocated memory was 142.1 MB in the beginning and 203.9 MB in the end (delta: 61.9 MB). Free memory was 103.2 MB in the beginning and 161.7 MB in the end (delta: -58.4 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2020-09-16 01:16:41,141 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.89 ms. Allocated memory is still 203.9 MB. Free memory was 161.7 MB in the beginning and 159.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-16 01:16:41,141 INFO L168 Benchmark]: Boogie Preprocessor took 30.31 ms. Allocated memory is still 203.9 MB. Free memory was 159.6 MB in the beginning and 157.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-09-16 01:16:41,144 INFO L168 Benchmark]: RCFGBuilder took 502.94 ms. Allocated memory is still 203.9 MB. Free memory was 157.8 MB in the beginning and 135.9 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. [2020-09-16 01:16:41,145 INFO L168 Benchmark]: TraceAbstraction took 3928.95 ms. Allocated memory was 203.9 MB in the beginning and 244.3 MB in the end (delta: 40.4 MB). Free memory was 135.2 MB in the beginning and 129.0 MB in the end (delta: 6.2 MB). Peak memory consumption was 46.6 MB. Max. memory is 7.1 GB. [2020-09-16 01:16:41,155 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 142.1 MB. Free memory was 123.6 MB in the beginning and 123.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 818.07 ms. Allocated memory was 142.1 MB in the beginning and 203.9 MB in the end (delta: 61.9 MB). Free memory was 103.2 MB in the beginning and 161.7 MB in the end (delta: -58.4 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 59.89 ms. Allocated memory is still 203.9 MB. Free memory was 161.7 MB in the beginning and 159.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.31 ms. Allocated memory is still 203.9 MB. Free memory was 159.6 MB in the beginning and 157.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 502.94 ms. Allocated memory is still 203.9 MB. Free memory was 157.8 MB in the beginning and 135.9 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3928.95 ms. Allocated memory was 203.9 MB in the beginning and 244.3 MB in the end (delta: 40.4 MB). Free memory was 135.2 MB in the beginning and 129.0 MB in the end (delta: 6.2 MB). Peak memory consumption was 46.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 79 ProgramPointsBefore, 32 ProgramPointsAfterwards, 71 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 668 VarBasedMoverChecksPositive, 20 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2463 CheckedPairsTotal, 57 TotalNumberOfCompositions - PositiveResult [Line: 7]: 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, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.7s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 151 SDtfs, 152 SDslu, 225 SDs, 0 SdLazy, 66 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 96 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 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, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 77 NumberOfCodeBlocks, 77 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 70 ConstructedInterpolants, 0 QuantifiedInterpolants, 2725 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...