/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/safe015_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-60655ea [2020-09-15 23:42:06,101 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-15 23:42:06,106 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-15 23:42:06,148 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-15 23:42:06,149 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-15 23:42:06,156 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-15 23:42:06,159 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-15 23:42:06,163 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-15 23:42:06,166 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-15 23:42:06,169 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-15 23:42:06,170 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-15 23:42:06,171 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-15 23:42:06,171 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-15 23:42:06,174 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-15 23:42:06,176 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-15 23:42:06,178 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-15 23:42:06,179 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-15 23:42:06,180 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-15 23:42:06,181 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-15 23:42:06,189 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-15 23:42:06,191 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-15 23:42:06,193 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-15 23:42:06,194 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-15 23:42:06,194 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-15 23:42:06,212 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-15 23:42:06,212 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-15 23:42:06,212 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-15 23:42:06,214 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-15 23:42:06,214 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-15 23:42:06,221 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-15 23:42:06,221 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-15 23:42:06,222 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-15 23:42:06,223 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-15 23:42:06,224 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-15 23:42:06,224 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-15 23:42:06,225 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-15 23:42:06,225 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-15 23:42:06,226 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-15 23:42:06,226 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-15 23:42:06,227 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-15 23:42:06,228 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-15 23:42:06,228 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 [2020-09-15 23:42:06,253 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-15 23:42:06,254 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-15 23:42:06,255 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-15 23:42:06,255 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-15 23:42:06,255 INFO L138 SettingsManager]: * Use SBE=true [2020-09-15 23:42:06,256 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-15 23:42:06,256 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-15 23:42:06,256 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-15 23:42:06,256 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-15 23:42:06,256 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-15 23:42:06,257 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-15 23:42:06,257 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-15 23:42:06,257 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-15 23:42:06,257 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-15 23:42:06,257 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-15 23:42:06,258 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-15 23:42:06,258 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-15 23:42:06,258 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-15 23:42:06,258 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-15 23:42:06,258 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-15 23:42:06,259 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-15 23:42:06,259 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-15 23:42:06,259 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-15 23:42:06,259 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-15 23:42:06,259 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-15 23:42:06,260 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-15 23:42:06,260 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-15 23:42:06,260 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-15 23:42:06,260 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-15 23:42:06,260 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-15 23:42:06,261 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-15 23:42:06,689 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-15 23:42:06,715 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-15 23:42:06,719 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-15 23:42:06,723 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-15 23:42:06,724 INFO L275 PluginConnector]: CDTParser initialized [2020-09-15 23:42:06,726 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe015_pso.oepc.i [2020-09-15 23:42:06,817 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/58f9dbd79/574a30a7e5df4e559195b9e7aba39675/FLAG0766c4183 [2020-09-15 23:42:07,445 INFO L306 CDTParser]: Found 1 translation units. [2020-09-15 23:42:07,446 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe015_pso.oepc.i [2020-09-15 23:42:07,479 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/58f9dbd79/574a30a7e5df4e559195b9e7aba39675/FLAG0766c4183 [2020-09-15 23:42:07,707 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/58f9dbd79/574a30a7e5df4e559195b9e7aba39675 [2020-09-15 23:42:07,723 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-15 23:42:07,730 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-15 23:42:07,734 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-15 23:42:07,734 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-15 23:42:07,742 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-15 23:42:07,743 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 11:42:07" (1/1) ... [2020-09-15 23:42:07,748 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@120a6ddc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:42:07, skipping insertion in model container [2020-09-15 23:42:07,749 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 11:42:07" (1/1) ... [2020-09-15 23:42:07,759 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-15 23:42:07,838 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-15 23:42:08,434 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-15 23:42:08,451 INFO L203 MainTranslator]: Completed pre-run [2020-09-15 23:42:08,497 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-15 23:42:08,592 INFO L208 MainTranslator]: Completed translation [2020-09-15 23:42:08,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:42:08 WrapperNode [2020-09-15 23:42:08,594 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-15 23:42:08,595 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-15 23:42:08,595 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-15 23:42:08,596 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-15 23:42:08,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:42:08" (1/1) ... [2020-09-15 23:42:08,630 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:42:08" (1/1) ... [2020-09-15 23:42:08,662 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-15 23:42:08,662 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-15 23:42:08,662 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-15 23:42:08,663 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-15 23:42:08,675 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:42:08" (1/1) ... [2020-09-15 23:42:08,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:42:08" (1/1) ... [2020-09-15 23:42:08,679 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:42:08" (1/1) ... [2020-09-15 23:42:08,685 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:42:08" (1/1) ... [2020-09-15 23:42:08,692 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:42:08" (1/1) ... [2020-09-15 23:42:08,696 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:42:08" (1/1) ... [2020-09-15 23:42:08,698 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:42:08" (1/1) ... [2020-09-15 23:42:08,702 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-15 23:42:08,703 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-15 23:42:08,703 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-15 23:42:08,703 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-15 23:42:08,705 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:42:08" (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 [2020-09-15 23:42:08,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-15 23:42:08,786 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-15 23:42:08,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-15 23:42:08,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-15 23:42:08,786 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-15 23:42:08,787 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-15 23:42:08,787 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-15 23:42:08,787 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-15 23:42:08,787 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-15 23:42:08,788 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-15 23:42:08,788 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-15 23:42:08,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-15 23:42:08,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-15 23:42:08,791 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-15 23:42:09,255 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-15 23:42:09,255 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-15 23:42:09,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 11:42:09 BoogieIcfgContainer [2020-09-15 23:42:09,261 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-15 23:42:09,263 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-15 23:42:09,263 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-15 23:42:09,267 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-15 23:42:09,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 11:42:07" (1/3) ... [2020-09-15 23:42:09,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@436d3cf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 11:42:09, skipping insertion in model container [2020-09-15 23:42:09,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:42:08" (2/3) ... [2020-09-15 23:42:09,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@436d3cf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 11:42:09, skipping insertion in model container [2020-09-15 23:42:09,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 11:42:09" (3/3) ... [2020-09-15 23:42:09,272 INFO L109 eAbstractionObserver]: Analyzing ICFG safe015_pso.oepc.i [2020-09-15 23:42:09,285 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-15 23:42:09,285 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-15 23:42:09,297 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-15 23:42:09,299 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-15 23:42:09,331 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:42:09,331 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:42:09,331 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:42:09,332 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:42:09,332 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:42:09,332 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:42:09,333 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:42:09,333 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:42:09,333 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:42:09,334 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:42:09,334 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:42:09,334 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:42:09,335 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:42:09,335 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:42:09,335 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:42:09,336 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:42:09,336 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:42:09,336 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:42:09,341 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:42:09,342 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:42:09,342 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:42:09,342 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:42:09,351 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:42:09,351 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:42:09,352 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:42:09,352 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:42:09,355 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:42:09,356 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:42:09,356 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:42:09,356 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:42:09,383 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-15 23:42:09,413 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-15 23:42:09,414 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-15 23:42:09,414 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-15 23:42:09,414 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-15 23:42:09,414 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-15 23:42:09,415 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-15 23:42:09,415 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-15 23:42:09,415 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-15 23:42:09,436 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-09-15 23:42:09,439 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-09-15 23:42:09,493 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-09-15 23:42:09,493 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-15 23:42:09,500 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-15 23:42:09,503 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-09-15 23:42:09,524 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-09-15 23:42:09,525 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-15 23:42:09,526 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-15 23:42:09,528 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-09-15 23:42:09,530 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-15 23:42:11,153 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2826 [2020-09-15 23:42:11,153 INFO L214 etLargeBlockEncoding]: Total number of compositions: 58 [2020-09-15 23:42:11,158 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-09-15 23:42:11,188 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-09-15 23:42:11,190 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-09-15 23:42:11,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-15 23:42:11,200 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:42:11,201 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:42:11,202 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:42:11,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:42:11,209 INFO L82 PathProgramCache]: Analyzing trace with hash -2122060928, now seen corresponding path program 1 times [2020-09-15 23:42:11,231 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:42:11,232 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772853966] [2020-09-15 23:42:11,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:42:11,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:42:11,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:42:11,493 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772853966] [2020-09-15 23:42:11,494 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:42:11,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-15 23:42:11,495 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1982951576] [2020-09-15 23:42:11,499 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:42:11,503 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:42:11,524 INFO L274 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-09-15 23:42:11,524 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:42:11,539 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 23:42:11,540 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-15 23:42:11,540 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:42:11,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-15 23:42:11,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 23:42:11,558 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-09-15 23:42:11,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:42:11,611 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-09-15 23:42:11,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-15 23:42:11,613 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-09-15 23:42:11,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:42:11,633 INFO L225 Difference]: With dead ends: 282 [2020-09-15 23:42:11,633 INFO L226 Difference]: Without dead ends: 218 [2020-09-15 23:42:11,635 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 23:42:11,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-09-15 23:42:11,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-09-15 23:42:11,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-09-15 23:42:11,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-09-15 23:42:11,731 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-09-15 23:42:11,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:42:11,733 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-09-15 23:42:11,733 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-15 23:42:11,734 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-09-15 23:42:11,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-15 23:42:11,736 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:42:11,736 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:42:11,737 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-15 23:42:11,737 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:42:11,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:42:11,738 INFO L82 PathProgramCache]: Analyzing trace with hash -1372085576, now seen corresponding path program 1 times [2020-09-15 23:42:11,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:42:11,742 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158492731] [2020-09-15 23:42:11,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:42:11,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:42:11,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:42:11,821 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158492731] [2020-09-15 23:42:11,821 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:42:11,821 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 23:42:11,822 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2021561733] [2020-09-15 23:42:11,822 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:42:11,823 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:42:11,825 INFO L274 McrAutomatonBuilder]: Finished intersection with 13 states and 15 transitions. [2020-09-15 23:42:11,825 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:42:11,847 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 23:42:11,849 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-15 23:42:11,849 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:42:11,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-15 23:42:11,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 23:42:11,850 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 3 states. [2020-09-15 23:42:11,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:42:11,873 INFO L93 Difference]: Finished difference Result 202 states and 544 transitions. [2020-09-15 23:42:11,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-15 23:42:11,877 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-09-15 23:42:11,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:42:11,880 INFO L225 Difference]: With dead ends: 202 [2020-09-15 23:42:11,880 INFO L226 Difference]: Without dead ends: 202 [2020-09-15 23:42:11,881 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 23:42:11,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-09-15 23:42:11,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-09-15 23:42:11,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-09-15 23:42:11,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 544 transitions. [2020-09-15 23:42:11,900 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 544 transitions. Word has length 9 [2020-09-15 23:42:11,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:42:11,901 INFO L479 AbstractCegarLoop]: Abstraction has 202 states and 544 transitions. [2020-09-15 23:42:11,901 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-15 23:42:11,901 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-09-15 23:42:11,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-15 23:42:11,902 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:42:11,902 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:42:11,903 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-15 23:42:11,903 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:42:11,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:42:11,903 INFO L82 PathProgramCache]: Analyzing trace with hash 365373016, now seen corresponding path program 1 times [2020-09-15 23:42:11,904 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:42:11,904 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549013897] [2020-09-15 23:42:11,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:42:11,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:42:11,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:42:11,974 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549013897] [2020-09-15 23:42:11,974 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:42:11,975 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-15 23:42:11,975 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [124416026] [2020-09-15 23:42:11,975 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:42:11,976 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:42:11,978 INFO L274 McrAutomatonBuilder]: Finished intersection with 17 states and 22 transitions. [2020-09-15 23:42:11,978 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:42:12,000 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 23:42:12,001 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-15 23:42:12,001 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:42:12,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-15 23:42:12,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 23:42:12,002 INFO L87 Difference]: Start difference. First operand 202 states and 544 transitions. Second operand 3 states. [2020-09-15 23:42:12,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:42:12,010 INFO L93 Difference]: Finished difference Result 198 states and 530 transitions. [2020-09-15 23:42:12,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-15 23:42:12,011 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-09-15 23:42:12,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:42:12,013 INFO L225 Difference]: With dead ends: 198 [2020-09-15 23:42:12,013 INFO L226 Difference]: Without dead ends: 198 [2020-09-15 23:42:12,013 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 23:42:12,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-09-15 23:42:12,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2020-09-15 23:42:12,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-09-15 23:42:12,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 530 transitions. [2020-09-15 23:42:12,030 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 530 transitions. Word has length 10 [2020-09-15 23:42:12,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:42:12,030 INFO L479 AbstractCegarLoop]: Abstraction has 198 states and 530 transitions. [2020-09-15 23:42:12,030 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-15 23:42:12,030 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 530 transitions. [2020-09-15 23:42:12,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-15 23:42:12,032 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:42:12,032 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:42:12,032 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-15 23:42:12,033 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:42:12,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:42:12,033 INFO L82 PathProgramCache]: Analyzing trace with hash -1571968161, now seen corresponding path program 1 times [2020-09-15 23:42:12,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:42:12,034 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831236387] [2020-09-15 23:42:12,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:42:12,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:42:12,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:42:12,129 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831236387] [2020-09-15 23:42:12,129 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:42:12,129 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-15 23:42:12,129 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2022323548] [2020-09-15 23:42:12,130 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:42:12,131 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:42:12,133 INFO L274 McrAutomatonBuilder]: Finished intersection with 31 states and 55 transitions. [2020-09-15 23:42:12,134 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:42:12,268 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 23:42:12,269 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-15 23:42:12,269 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:42:12,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-15 23:42:12,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 23:42:12,270 INFO L87 Difference]: Start difference. First operand 198 states and 530 transitions. Second operand 3 states. [2020-09-15 23:42:12,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:42:12,278 INFO L93 Difference]: Finished difference Result 192 states and 511 transitions. [2020-09-15 23:42:12,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-15 23:42:12,278 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-09-15 23:42:12,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:42:12,280 INFO L225 Difference]: With dead ends: 192 [2020-09-15 23:42:12,281 INFO L226 Difference]: Without dead ends: 192 [2020-09-15 23:42:12,281 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 23:42:12,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-09-15 23:42:12,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2020-09-15 23:42:12,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2020-09-15 23:42:12,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 511 transitions. [2020-09-15 23:42:12,296 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 511 transitions. Word has length 11 [2020-09-15 23:42:12,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:42:12,296 INFO L479 AbstractCegarLoop]: Abstraction has 192 states and 511 transitions. [2020-09-15 23:42:12,296 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-15 23:42:12,296 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 511 transitions. [2020-09-15 23:42:12,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-15 23:42:12,298 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:42:12,298 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:42:12,298 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-15 23:42:12,299 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:42:12,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:42:12,299 INFO L82 PathProgramCache]: Analyzing trace with hash -1486373385, now seen corresponding path program 1 times [2020-09-15 23:42:12,299 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:42:12,300 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71754905] [2020-09-15 23:42:12,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:42:12,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:42:12,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:42:12,377 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71754905] [2020-09-15 23:42:12,377 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:42:12,377 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 23:42:12,378 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1255098390] [2020-09-15 23:42:12,378 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:42:12,380 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:42:12,384 INFO L274 McrAutomatonBuilder]: Finished intersection with 35 states and 63 transitions. [2020-09-15 23:42:12,384 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:42:12,436 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 23:42:12,467 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 23:42:12,485 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 23:42:12,506 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 23:42:12,526 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 23:42:12,622 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 23:42:12,667 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 23:42:12,703 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [3186#(not (= 3 ~__unbuffered_cnt~0))] [2020-09-15 23:42:12,703 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-15 23:42:12,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:42:12,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-15 23:42:12,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-15 23:42:12,704 INFO L87 Difference]: Start difference. First operand 192 states and 511 transitions. Second operand 5 states. [2020-09-15 23:42:12,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:42:12,784 INFO L93 Difference]: Finished difference Result 187 states and 470 transitions. [2020-09-15 23:42:12,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-15 23:42:12,785 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-09-15 23:42:12,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:42:12,786 INFO L225 Difference]: With dead ends: 187 [2020-09-15 23:42:12,786 INFO L226 Difference]: Without dead ends: 123 [2020-09-15 23:42:12,787 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 5 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-15 23:42:12,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-09-15 23:42:12,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2020-09-15 23:42:12,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-09-15 23:42:12,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 272 transitions. [2020-09-15 23:42:12,793 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 272 transitions. Word has length 12 [2020-09-15 23:42:12,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:42:12,793 INFO L479 AbstractCegarLoop]: Abstraction has 123 states and 272 transitions. [2020-09-15 23:42:12,794 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-15 23:42:12,794 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 272 transitions. [2020-09-15 23:42:12,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-15 23:42:12,795 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:42:12,795 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:42:12,795 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-15 23:42:12,796 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:42:12,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:42:12,796 INFO L82 PathProgramCache]: Analyzing trace with hash 1920279248, now seen corresponding path program 1 times [2020-09-15 23:42:12,796 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:42:12,797 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236517686] [2020-09-15 23:42:12,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:42:12,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:42:12,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:42:12,845 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236517686] [2020-09-15 23:42:12,845 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:42:12,846 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 23:42:12,846 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1756044572] [2020-09-15 23:42:12,846 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:42:12,848 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:42:12,850 INFO L274 McrAutomatonBuilder]: Finished intersection with 23 states and 30 transitions. [2020-09-15 23:42:12,850 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:42:12,856 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 23:42:12,856 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-15 23:42:12,857 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:42:12,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-15 23:42:12,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 23:42:12,857 INFO L87 Difference]: Start difference. First operand 123 states and 272 transitions. Second operand 3 states. [2020-09-15 23:42:12,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:42:12,866 INFO L93 Difference]: Finished difference Result 155 states and 330 transitions. [2020-09-15 23:42:12,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-15 23:42:12,866 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-09-15 23:42:12,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:42:12,867 INFO L225 Difference]: With dead ends: 155 [2020-09-15 23:42:12,867 INFO L226 Difference]: Without dead ends: 124 [2020-09-15 23:42:12,868 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 23:42:12,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-09-15 23:42:12,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 122. [2020-09-15 23:42:12,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-09-15 23:42:12,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 257 transitions. [2020-09-15 23:42:12,873 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 257 transitions. Word has length 14 [2020-09-15 23:42:12,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:42:12,873 INFO L479 AbstractCegarLoop]: Abstraction has 122 states and 257 transitions. [2020-09-15 23:42:12,873 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-15 23:42:12,873 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 257 transitions. [2020-09-15 23:42:12,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-15 23:42:12,875 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:42:12,875 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:42:12,875 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-15 23:42:12,875 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:42:12,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:42:12,876 INFO L82 PathProgramCache]: Analyzing trace with hash 451653261, now seen corresponding path program 1 times [2020-09-15 23:42:12,876 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:42:12,876 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862620238] [2020-09-15 23:42:12,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:42:12,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:42:12,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:42:12,941 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862620238] [2020-09-15 23:42:12,942 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:42:12,942 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-15 23:42:12,943 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [977169700] [2020-09-15 23:42:12,943 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:42:12,944 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:42:12,951 INFO L274 McrAutomatonBuilder]: Finished intersection with 49 states and 91 transitions. [2020-09-15 23:42:12,952 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:42:13,027 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 23:42:13,028 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-15 23:42:13,028 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:42:13,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-15 23:42:13,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-15 23:42:13,029 INFO L87 Difference]: Start difference. First operand 122 states and 257 transitions. Second operand 4 states. [2020-09-15 23:42:13,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:42:13,051 INFO L93 Difference]: Finished difference Result 154 states and 308 transitions. [2020-09-15 23:42:13,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-15 23:42:13,052 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-09-15 23:42:13,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:42:13,053 INFO L225 Difference]: With dead ends: 154 [2020-09-15 23:42:13,053 INFO L226 Difference]: Without dead ends: 116 [2020-09-15 23:42:13,054 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-15 23:42:13,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-09-15 23:42:13,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 114. [2020-09-15 23:42:13,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-09-15 23:42:13,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 222 transitions. [2020-09-15 23:42:13,058 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 222 transitions. Word has length 15 [2020-09-15 23:42:13,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:42:13,059 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 222 transitions. [2020-09-15 23:42:13,059 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-15 23:42:13,059 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 222 transitions. [2020-09-15 23:42:13,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-15 23:42:13,060 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:42:13,060 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:42:13,060 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-15 23:42:13,060 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:42:13,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:42:13,061 INFO L82 PathProgramCache]: Analyzing trace with hash -600886075, now seen corresponding path program 1 times [2020-09-15 23:42:13,061 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:42:13,062 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641857241] [2020-09-15 23:42:13,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:42:13,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:42:13,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:42:13,169 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641857241] [2020-09-15 23:42:13,169 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:42:13,169 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-15 23:42:13,169 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1352437346] [2020-09-15 23:42:13,170 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:42:13,172 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:42:13,178 INFO L274 McrAutomatonBuilder]: Finished intersection with 43 states and 75 transitions. [2020-09-15 23:42:13,178 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:42:13,191 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 23:42:13,262 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 4 new interpolants: [4421#(not (= 3 ~__unbuffered_cnt~0)), 4422#(not (= ~__unbuffered_cnt~0 2)), 4423#(not (= ~__unbuffered_cnt~0 1)), 4424#(<= ~__unbuffered_cnt~0 0)] [2020-09-15 23:42:13,263 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-15 23:42:13,263 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:42:13,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-15 23:42:13,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-09-15 23:42:13,264 INFO L87 Difference]: Start difference. First operand 114 states and 222 transitions. Second operand 10 states. [2020-09-15 23:42:13,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:42:13,341 INFO L93 Difference]: Finished difference Result 110 states and 212 transitions. [2020-09-15 23:42:13,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-15 23:42:13,342 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 15 [2020-09-15 23:42:13,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:42:13,343 INFO L225 Difference]: With dead ends: 110 [2020-09-15 23:42:13,343 INFO L226 Difference]: Without dead ends: 38 [2020-09-15 23:42:13,343 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-09-15 23:42:13,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-15 23:42:13,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-09-15 23:42:13,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-09-15 23:42:13,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 62 transitions. [2020-09-15 23:42:13,345 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 62 transitions. Word has length 15 [2020-09-15 23:42:13,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:42:13,347 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 62 transitions. [2020-09-15 23:42:13,347 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-15 23:42:13,347 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 62 transitions. [2020-09-15 23:42:13,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-15 23:42:13,348 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:42:13,348 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:42:13,349 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-15 23:42:13,349 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:42:13,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:42:13,349 INFO L82 PathProgramCache]: Analyzing trace with hash 13395029, now seen corresponding path program 1 times [2020-09-15 23:42:13,350 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:42:13,350 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417920247] [2020-09-15 23:42:13,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:42:13,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:42:13,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:42:13,438 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417920247] [2020-09-15 23:42:13,438 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:42:13,438 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-15 23:42:13,438 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1830153214] [2020-09-15 23:42:13,439 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:42:13,456 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:42:13,464 INFO L274 McrAutomatonBuilder]: Finished intersection with 37 states and 54 transitions. [2020-09-15 23:42:13,464 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:42:13,487 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 23:42:13,487 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-15 23:42:13,488 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:42:13,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-15 23:42:13,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-15 23:42:13,488 INFO L87 Difference]: Start difference. First operand 38 states and 62 transitions. Second operand 4 states. [2020-09-15 23:42:13,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:42:13,511 INFO L93 Difference]: Finished difference Result 56 states and 90 transitions. [2020-09-15 23:42:13,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-15 23:42:13,511 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-09-15 23:42:13,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:42:13,512 INFO L225 Difference]: With dead ends: 56 [2020-09-15 23:42:13,512 INFO L226 Difference]: Without dead ends: 35 [2020-09-15 23:42:13,513 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-15 23:42:13,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-09-15 23:42:13,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-09-15 23:42:13,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-09-15 23:42:13,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 56 transitions. [2020-09-15 23:42:13,515 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 56 transitions. Word has length 17 [2020-09-15 23:42:13,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:42:13,515 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 56 transitions. [2020-09-15 23:42:13,515 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-15 23:42:13,515 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 56 transitions. [2020-09-15 23:42:13,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-15 23:42:13,516 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:42:13,516 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:42:13,516 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-15 23:42:13,516 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:42:13,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:42:13,517 INFO L82 PathProgramCache]: Analyzing trace with hash 265740449, now seen corresponding path program 2 times [2020-09-15 23:42:13,517 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:42:13,518 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553467734] [2020-09-15 23:42:13,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:42:13,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:42:13,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:42:13,600 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553467734] [2020-09-15 23:42:13,600 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:42:13,600 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 23:42:13,601 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1562173628] [2020-09-15 23:42:13,601 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:42:13,602 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:42:13,608 INFO L274 McrAutomatonBuilder]: Finished intersection with 34 states and 47 transitions. [2020-09-15 23:42:13,608 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:42:13,631 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 23:42:13,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-15 23:42:13,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:42:13,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-15 23:42:13,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-15 23:42:13,632 INFO L87 Difference]: Start difference. First operand 35 states and 56 transitions. Second operand 4 states. [2020-09-15 23:42:13,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:42:13,648 INFO L93 Difference]: Finished difference Result 34 states and 55 transitions. [2020-09-15 23:42:13,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-15 23:42:13,649 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-09-15 23:42:13,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:42:13,649 INFO L225 Difference]: With dead ends: 34 [2020-09-15 23:42:13,649 INFO L226 Difference]: Without dead ends: 0 [2020-09-15 23:42:13,650 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-15 23:42:13,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-15 23:42:13,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-15 23:42:13,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-15 23:42:13,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-15 23:42:13,650 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-09-15 23:42:13,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:42:13,651 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-15 23:42:13,651 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-15 23:42:13,651 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-15 23:42:13,651 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-15 23:42:13,651 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-15 23:42:13,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 11:42:13 BasicIcfg [2020-09-15 23:42:13,660 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-15 23:42:13,664 INFO L168 Benchmark]: Toolchain (without parser) took 5937.14 ms. Allocated memory was 147.8 MB in the beginning and 275.8 MB in the end (delta: 127.9 MB). Free memory was 102.5 MB in the beginning and 216.8 MB in the end (delta: -114.3 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2020-09-15 23:42:13,665 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-15 23:42:13,665 INFO L168 Benchmark]: CACSL2BoogieTranslator took 860.21 ms. Allocated memory was 147.8 MB in the beginning and 205.0 MB in the end (delta: 57.1 MB). Free memory was 101.9 MB in the beginning and 161.5 MB in the end (delta: -59.6 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. [2020-09-15 23:42:13,671 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.79 ms. Allocated memory is still 205.0 MB. Free memory was 161.5 MB in the beginning and 159.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-09-15 23:42:13,673 INFO L168 Benchmark]: Boogie Preprocessor took 40.26 ms. Allocated memory is still 205.0 MB. Free memory was 159.6 MB in the beginning and 157.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-09-15 23:42:13,674 INFO L168 Benchmark]: RCFGBuilder took 558.55 ms. Allocated memory is still 205.0 MB. Free memory was 157.7 MB in the beginning and 135.6 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2020-09-15 23:42:13,675 INFO L168 Benchmark]: TraceAbstraction took 4397.25 ms. Allocated memory was 205.0 MB in the beginning and 275.8 MB in the end (delta: 70.8 MB). Free memory was 135.6 MB in the beginning and 216.8 MB in the end (delta: -81.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-15 23:42:13,687 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 860.21 ms. Allocated memory was 147.8 MB in the beginning and 205.0 MB in the end (delta: 57.1 MB). Free memory was 101.9 MB in the beginning and 161.5 MB in the end (delta: -59.6 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 66.79 ms. Allocated memory is still 205.0 MB. Free memory was 161.5 MB in the beginning and 159.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 40.26 ms. Allocated memory is still 205.0 MB. Free memory was 159.6 MB in the beginning and 157.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 558.55 ms. Allocated memory is still 205.0 MB. Free memory was 157.7 MB in the beginning and 135.6 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4397.25 ms. Allocated memory was 205.0 MB in the beginning and 275.8 MB in the end (delta: 70.8 MB). Free memory was 135.6 MB in the beginning and 216.8 MB in the end (delta: -81.2 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 LbeTime: 1.7s, 77 ProgramPointsBefore, 31 ProgramPointsAfterwards, 69 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 8 FixpointIterations, 13 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 655 VarBasedMoverChecksPositive, 29 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2826 CheckedPairsTotal, 58 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, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.2s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 196 SDtfs, 125 SDslu, 232 SDs, 0 SdLazy, 133 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 184 GetRequests, 151 SyntacticMatches, 5 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 128 NumberOfCodeBlocks, 128 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 118 ConstructedInterpolants, 0 QuantifiedInterpolants, 3872 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...