/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/safe007_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-507b705 [2020-09-11 23:31:48,732 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-11 23:31:48,736 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-11 23:31:48,763 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-11 23:31:48,764 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-11 23:31:48,765 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-11 23:31:48,766 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-11 23:31:48,768 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-11 23:31:48,769 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-11 23:31:48,770 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-11 23:31:48,771 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-11 23:31:48,772 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-11 23:31:48,773 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-11 23:31:48,774 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-11 23:31:48,775 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-11 23:31:48,776 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-11 23:31:48,777 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-11 23:31:48,778 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-11 23:31:48,779 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-11 23:31:48,781 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-11 23:31:48,783 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-11 23:31:48,784 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-11 23:31:48,785 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-11 23:31:48,786 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-11 23:31:48,788 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-11 23:31:48,791 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-11 23:31:48,792 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-11 23:31:48,792 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-11 23:31:48,793 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-11 23:31:48,794 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-11 23:31:48,794 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-11 23:31:48,795 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-11 23:31:48,795 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-11 23:31:48,796 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-11 23:31:48,796 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-11 23:31:48,797 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-11 23:31:48,798 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 [2020-09-11 23:31:48,824 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-11 23:31:48,825 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-11 23:31:48,826 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-11 23:31:48,826 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-11 23:31:48,826 INFO L138 SettingsManager]: * Use SBE=true [2020-09-11 23:31:48,827 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-11 23:31:48,827 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-11 23:31:48,827 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-11 23:31:48,827 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-11 23:31:48,828 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-11 23:31:48,828 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-11 23:31:48,828 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-11 23:31:48,828 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-11 23:31:48,828 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-11 23:31:48,829 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-11 23:31:48,829 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-11 23:31:48,829 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-11 23:31:48,829 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-11 23:31:48,829 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-11 23:31:48,830 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-11 23:31:48,830 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-11 23:31:48,830 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-11 23:31:48,830 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-11 23:31:48,830 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-11 23:31:48,831 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-11 23:31:48,831 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-11 23:31:48,831 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-11 23:31:48,831 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-11 23:31:48,831 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-11 23:31:48,832 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-11 23:31:48,832 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-11 23:31:49,263 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-11 23:31:49,292 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-11 23:31:49,296 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-11 23:31:49,298 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-11 23:31:49,299 INFO L275 PluginConnector]: CDTParser initialized [2020-09-11 23:31:49,301 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe007_tso.oepc.i [2020-09-11 23:31:49,393 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3c409188f/7a398d051d09445f9c242684a99a0284/FLAGed5cb2c55 [2020-09-11 23:31:50,094 INFO L306 CDTParser]: Found 1 translation units. [2020-09-11 23:31:50,095 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe007_tso.oepc.i [2020-09-11 23:31:50,125 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3c409188f/7a398d051d09445f9c242684a99a0284/FLAGed5cb2c55 [2020-09-11 23:31:50,352 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3c409188f/7a398d051d09445f9c242684a99a0284 [2020-09-11 23:31:50,365 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-11 23:31:50,371 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-11 23:31:50,372 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-11 23:31:50,373 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-11 23:31:50,377 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-11 23:31:50,378 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 11:31:50" (1/1) ... [2020-09-11 23:31:50,382 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c86ed0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:31:50, skipping insertion in model container [2020-09-11 23:31:50,383 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 11:31:50" (1/1) ... [2020-09-11 23:31:50,392 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-11 23:31:50,449 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-11 23:31:50,994 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-11 23:31:51,013 INFO L203 MainTranslator]: Completed pre-run [2020-09-11 23:31:51,079 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-11 23:31:51,153 INFO L208 MainTranslator]: Completed translation [2020-09-11 23:31:51,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:31:51 WrapperNode [2020-09-11 23:31:51,154 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-11 23:31:51,155 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-11 23:31:51,155 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-11 23:31:51,155 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-11 23:31:51,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:31:51" (1/1) ... [2020-09-11 23:31:51,187 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:31:51" (1/1) ... [2020-09-11 23:31:51,214 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-11 23:31:51,214 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-11 23:31:51,214 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-11 23:31:51,214 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-11 23:31:51,226 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:31:51" (1/1) ... [2020-09-11 23:31:51,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:31:51" (1/1) ... [2020-09-11 23:31:51,230 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:31:51" (1/1) ... [2020-09-11 23:31:51,230 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:31:51" (1/1) ... [2020-09-11 23:31:51,237 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:31:51" (1/1) ... [2020-09-11 23:31:51,240 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:31:51" (1/1) ... [2020-09-11 23:31:51,243 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:31:51" (1/1) ... [2020-09-11 23:31:51,246 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-11 23:31:51,246 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-11 23:31:51,247 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-11 23:31:51,247 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-11 23:31:51,248 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:31:51" (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 [2020-09-11 23:31:51,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-11 23:31:51,338 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-11 23:31:51,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-11 23:31:51,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-11 23:31:51,339 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-11 23:31:51,339 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-11 23:31:51,339 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-11 23:31:51,339 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-11 23:31:51,340 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-11 23:31:51,340 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-11 23:31:51,340 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-11 23:31:51,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-11 23:31:51,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-11 23:31:51,343 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-11 23:31:51,757 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-11 23:31:51,757 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-11 23:31:51,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 11:31:51 BoogieIcfgContainer [2020-09-11 23:31:51,762 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-11 23:31:51,764 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-11 23:31:51,764 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-11 23:31:51,768 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-11 23:31:51,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.09 11:31:50" (1/3) ... [2020-09-11 23:31:51,769 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@284d06e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 11:31:51, skipping insertion in model container [2020-09-11 23:31:51,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:31:51" (2/3) ... [2020-09-11 23:31:51,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@284d06e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 11:31:51, skipping insertion in model container [2020-09-11 23:31:51,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 11:31:51" (3/3) ... [2020-09-11 23:31:51,772 INFO L109 eAbstractionObserver]: Analyzing ICFG safe007_tso.oepc.i [2020-09-11 23:31:51,784 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-11 23:31:51,784 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-11 23:31:51,795 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-11 23:31:51,796 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-11 23:31:51,828 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:31:51,828 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:31:51,829 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:31:51,829 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:31:51,829 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:31:51,830 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:31:51,830 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:31:51,830 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:31:51,831 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:31:51,831 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:31:51,831 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:31:51,831 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:31:51,832 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:31:51,832 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:31:51,832 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:31:51,833 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:31:51,833 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:31:51,833 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:31:51,838 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:31:51,838 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:31:51,838 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:31:51,839 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:31:51,847 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:31:51,847 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:31:51,847 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:31:51,848 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:31:51,850 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:31:51,851 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:31:51,851 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:31:51,851 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:31:51,876 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-11 23:31:51,900 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-11 23:31:51,901 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-11 23:31:51,901 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-11 23:31:51,901 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-11 23:31:51,901 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-11 23:31:51,901 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-11 23:31:51,902 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-11 23:31:51,902 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-11 23:31:51,919 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 71 transitions, 157 flow [2020-09-11 23:31:51,921 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-09-11 23:31:51,967 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-09-11 23:31:51,967 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-11 23:31:51,973 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. [2020-09-11 23:31:51,976 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-09-11 23:31:51,998 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-09-11 23:31:51,998 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-11 23:31:51,999 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. [2020-09-11 23:31:52,001 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-09-11 23:31:52,003 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-11 23:31:53,160 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-09-11 23:31:53,266 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2463 [2020-09-11 23:31:53,266 INFO L214 etLargeBlockEncoding]: Total number of compositions: 57 [2020-09-11 23:31:53,271 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-09-11 23:31:53,313 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-09-11 23:31:53,315 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-09-11 23:31:53,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-11 23:31:53,326 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:31:53,327 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:31:53,327 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:31:53,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:31:53,335 INFO L82 PathProgramCache]: Analyzing trace with hash -691335731, now seen corresponding path program 1 times [2020-09-11 23:31:53,357 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:31:53,358 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162916804] [2020-09-11 23:31:53,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:31:53,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:31:53,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 23:31:53,571 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162916804] [2020-09-11 23:31:53,571 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:31:53,572 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 23:31:53,573 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [704691892] [2020-09-11 23:31:53,574 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:31:53,577 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:31:53,594 INFO L274 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-09-11 23:31:53,594 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:31:53,597 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 23:31:53,597 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-11 23:31:53,598 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:31:53,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-11 23:31:53,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-11 23:31:53,619 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-09-11 23:31:53,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:31:53,646 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-09-11 23:31:53,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-11 23:31:53,648 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-09-11 23:31:53,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:31:53,666 INFO L225 Difference]: With dead ends: 362 [2020-09-11 23:31:53,667 INFO L226 Difference]: Without dead ends: 298 [2020-09-11 23:31:53,668 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 [2020-09-11 23:31:53,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-09-11 23:31:53,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-09-11 23:31:53,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-09-11 23:31:53,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-09-11 23:31:53,758 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-09-11 23:31:53,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:31:53,762 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-09-11 23:31:53,762 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-11 23:31:53,762 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-09-11 23:31:53,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-11 23:31:53,764 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:31:53,764 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:31:53,764 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-11 23:31:53,767 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:31:53,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:31:53,767 INFO L82 PathProgramCache]: Analyzing trace with hash 43425274, now seen corresponding path program 1 times [2020-09-11 23:31:53,768 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:31:53,768 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251422115] [2020-09-11 23:31:53,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:31:53,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:31:53,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 23:31:53,969 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251422115] [2020-09-11 23:31:53,969 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:31:53,969 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 23:31:53,970 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1845202145] [2020-09-11 23:31:53,970 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:31:53,971 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:31:53,972 INFO L274 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-09-11 23:31:53,973 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:31:53,973 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 23:31:53,974 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-11 23:31:53,975 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:31:53,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-11 23:31:53,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-11 23:31:53,976 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-09-11 23:31:54,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:31:54,011 INFO L93 Difference]: Finished difference Result 330 states and 912 transitions. [2020-09-11 23:31:54,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-11 23:31:54,012 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-09-11 23:31:54,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:31:54,015 INFO L225 Difference]: With dead ends: 330 [2020-09-11 23:31:54,015 INFO L226 Difference]: Without dead ends: 266 [2020-09-11 23:31:54,016 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 [2020-09-11 23:31:54,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-09-11 23:31:54,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-09-11 23:31:54,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-09-11 23:31:54,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 752 transitions. [2020-09-11 23:31:54,039 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 752 transitions. Word has length 9 [2020-09-11 23:31:54,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:31:54,039 INFO L479 AbstractCegarLoop]: Abstraction has 266 states and 752 transitions. [2020-09-11 23:31:54,039 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-11 23:31:54,039 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 752 transitions. [2020-09-11 23:31:54,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-11 23:31:54,041 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:31:54,041 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:31:54,042 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-11 23:31:54,042 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:31:54,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:31:54,042 INFO L82 PathProgramCache]: Analyzing trace with hash 1345064228, now seen corresponding path program 1 times [2020-09-11 23:31:54,043 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:31:54,043 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064489539] [2020-09-11 23:31:54,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:31:54,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:31:54,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 23:31:54,156 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064489539] [2020-09-11 23:31:54,156 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:31:54,156 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 23:31:54,157 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [636497941] [2020-09-11 23:31:54,157 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:31:54,158 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:31:54,159 INFO L274 McrAutomatonBuilder]: Finished intersection with 12 states and 12 transitions. [2020-09-11 23:31:54,160 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:31:54,168 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 23:31:54,169 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-11 23:31:54,169 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:31:54,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-11 23:31:54,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-11 23:31:54,170 INFO L87 Difference]: Start difference. First operand 266 states and 752 transitions. Second operand 5 states. [2020-09-11 23:31:54,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:31:54,238 INFO L93 Difference]: Finished difference Result 290 states and 786 transitions. [2020-09-11 23:31:54,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-11 23:31:54,239 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-09-11 23:31:54,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:31:54,242 INFO L225 Difference]: With dead ends: 290 [2020-09-11 23:31:54,242 INFO L226 Difference]: Without dead ends: 242 [2020-09-11 23:31:54,242 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 [2020-09-11 23:31:54,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-09-11 23:31:54,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2020-09-11 23:31:54,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-09-11 23:31:54,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 670 transitions. [2020-09-11 23:31:54,258 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 670 transitions. Word has length 10 [2020-09-11 23:31:54,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:31:54,259 INFO L479 AbstractCegarLoop]: Abstraction has 242 states and 670 transitions. [2020-09-11 23:31:54,259 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-11 23:31:54,259 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 670 transitions. [2020-09-11 23:31:54,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-11 23:31:54,261 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:31:54,261 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:31:54,261 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-11 23:31:54,261 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:31:54,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:31:54,262 INFO L82 PathProgramCache]: Analyzing trace with hash 1654538757, now seen corresponding path program 1 times [2020-09-11 23:31:54,262 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:31:54,263 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101136765] [2020-09-11 23:31:54,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:31:54,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:31:54,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 23:31:54,349 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101136765] [2020-09-11 23:31:54,350 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:31:54,350 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 23:31:54,351 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [409147058] [2020-09-11 23:31:54,351 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:31:54,352 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:31:54,356 INFO L274 McrAutomatonBuilder]: Finished intersection with 20 states and 28 transitions. [2020-09-11 23:31:54,356 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:31:54,431 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 23:31:54,431 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-11 23:31:54,432 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:31:54,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-11 23:31:54,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-11 23:31:54,432 INFO L87 Difference]: Start difference. First operand 242 states and 670 transitions. Second operand 4 states. [2020-09-11 23:31:54,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:31:54,455 INFO L93 Difference]: Finished difference Result 260 states and 694 transitions. [2020-09-11 23:31:54,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-11 23:31:54,456 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-09-11 23:31:54,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:31:54,458 INFO L225 Difference]: With dead ends: 260 [2020-09-11 23:31:54,458 INFO L226 Difference]: Without dead ends: 224 [2020-09-11 23:31:54,459 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-11 23:31:54,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2020-09-11 23:31:54,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2020-09-11 23:31:54,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-09-11 23:31:54,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 610 transitions. [2020-09-11 23:31:54,470 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 610 transitions. Word has length 11 [2020-09-11 23:31:54,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:31:54,470 INFO L479 AbstractCegarLoop]: Abstraction has 224 states and 610 transitions. [2020-09-11 23:31:54,470 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-11 23:31:54,470 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 610 transitions. [2020-09-11 23:31:54,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-11 23:31:54,472 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:31:54,473 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:31:54,473 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-11 23:31:54,473 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:31:54,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:31:54,473 INFO L82 PathProgramCache]: Analyzing trace with hash 368404844, now seen corresponding path program 1 times [2020-09-11 23:31:54,474 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:31:54,474 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426225247] [2020-09-11 23:31:54,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:31:54,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:31:54,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 23:31:54,553 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426225247] [2020-09-11 23:31:54,553 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:31:54,553 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 23:31:54,553 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2087985310] [2020-09-11 23:31:54,554 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:31:54,555 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:31:54,559 INFO L274 McrAutomatonBuilder]: Finished intersection with 32 states and 58 transitions. [2020-09-11 23:31:54,559 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:31:54,710 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 23:31:54,711 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-11 23:31:54,711 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:31:54,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-11 23:31:54,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-11 23:31:54,712 INFO L87 Difference]: Start difference. First operand 224 states and 610 transitions. Second operand 5 states. [2020-09-11 23:31:54,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:31:54,784 INFO L93 Difference]: Finished difference Result 293 states and 773 transitions. [2020-09-11 23:31:54,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-11 23:31:54,786 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-09-11 23:31:54,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:31:54,787 INFO L225 Difference]: With dead ends: 293 [2020-09-11 23:31:54,787 INFO L226 Difference]: Without dead ends: 146 [2020-09-11 23:31:54,787 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-11 23:31:54,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-09-11 23:31:54,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-09-11 23:31:54,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-09-11 23:31:54,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 358 transitions. [2020-09-11 23:31:54,793 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 358 transitions. Word has length 12 [2020-09-11 23:31:54,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:31:54,794 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 358 transitions. [2020-09-11 23:31:54,794 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-11 23:31:54,794 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 358 transitions. [2020-09-11 23:31:54,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-11 23:31:54,795 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:31:54,796 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:31:54,796 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-11 23:31:54,796 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:31:54,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:31:54,796 INFO L82 PathProgramCache]: Analyzing trace with hash 257080554, now seen corresponding path program 1 times [2020-09-11 23:31:54,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:31:54,797 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221941544] [2020-09-11 23:31:54,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:31:54,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:31:54,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 23:31:54,872 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221941544] [2020-09-11 23:31:54,873 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:31:54,873 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 23:31:54,874 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1215719046] [2020-09-11 23:31:54,874 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:31:54,876 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:31:54,880 INFO L274 McrAutomatonBuilder]: Finished intersection with 34 states and 56 transitions. [2020-09-11 23:31:54,880 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:31:55,020 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 23:31:55,021 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-11 23:31:55,021 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:31:55,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-11 23:31:55,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-11 23:31:55,022 INFO L87 Difference]: Start difference. First operand 146 states and 358 transitions. Second operand 5 states. [2020-09-11 23:31:55,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:31:55,089 INFO L93 Difference]: Finished difference Result 188 states and 451 transitions. [2020-09-11 23:31:55,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-11 23:31:55,090 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-09-11 23:31:55,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:31:55,091 INFO L225 Difference]: With dead ends: 188 [2020-09-11 23:31:55,091 INFO L226 Difference]: Without dead ends: 74 [2020-09-11 23:31:55,091 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-11 23:31:55,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-09-11 23:31:55,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-09-11 23:31:55,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-09-11 23:31:55,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 164 transitions. [2020-09-11 23:31:55,096 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 164 transitions. Word has length 13 [2020-09-11 23:31:55,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:31:55,096 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 164 transitions. [2020-09-11 23:31:55,097 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-11 23:31:55,097 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 164 transitions. [2020-09-11 23:31:55,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-11 23:31:55,098 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:31:55,098 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:31:55,098 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-11 23:31:55,098 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:31:55,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:31:55,099 INFO L82 PathProgramCache]: Analyzing trace with hash -2118870046, now seen corresponding path program 1 times [2020-09-11 23:31:55,099 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:31:55,100 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669991980] [2020-09-11 23:31:55,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:31:55,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:31:55,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 23:31:55,214 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669991980] [2020-09-11 23:31:55,214 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:31:55,215 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 23:31:55,215 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [714609209] [2020-09-11 23:31:55,215 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:31:55,217 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:31:55,220 INFO L274 McrAutomatonBuilder]: Finished intersection with 20 states and 24 transitions. [2020-09-11 23:31:55,220 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:31:55,229 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 23:31:55,230 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-11 23:31:55,230 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:31:55,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-11 23:31:55,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-11 23:31:55,231 INFO L87 Difference]: Start difference. First operand 74 states and 164 transitions. Second operand 5 states. [2020-09-11 23:31:55,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:31:55,272 INFO L93 Difference]: Finished difference Result 62 states and 132 transitions. [2020-09-11 23:31:55,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-11 23:31:55,273 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-09-11 23:31:55,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:31:55,273 INFO L225 Difference]: With dead ends: 62 [2020-09-11 23:31:55,273 INFO L226 Difference]: Without dead ends: 0 [2020-09-11 23:31:55,274 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-11 23:31:55,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-11 23:31:55,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-11 23:31:55,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-11 23:31:55,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-11 23:31:55,275 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-09-11 23:31:55,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:31:55,275 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-11 23:31:55,275 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-11 23:31:55,276 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-11 23:31:55,276 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-11 23:31:55,276 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-11 23:31:55,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.09 11:31:55 BasicIcfg [2020-09-11 23:31:55,281 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-11 23:31:55,284 INFO L168 Benchmark]: Toolchain (without parser) took 4917.00 ms. Allocated memory was 139.5 MB in the beginning and 246.9 MB in the end (delta: 107.5 MB). Free memory was 100.9 MB in the beginning and 143.9 MB in the end (delta: -43.0 MB). Peak memory consumption was 64.5 MB. Max. memory is 7.1 GB. [2020-09-11 23:31:55,285 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-11 23:31:55,286 INFO L168 Benchmark]: CACSL2BoogieTranslator took 782.13 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 100.2 MB in the beginning and 158.6 MB in the end (delta: -58.3 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2020-09-11 23:31:55,287 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.95 ms. Allocated memory is still 201.9 MB. Free memory was 158.6 MB in the beginning and 156.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-09-11 23:31:55,288 INFO L168 Benchmark]: Boogie Preprocessor took 32.02 ms. Allocated memory is still 201.9 MB. Free memory was 156.0 MB in the beginning and 154.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-09-11 23:31:55,288 INFO L168 Benchmark]: RCFGBuilder took 516.08 ms. Allocated memory is still 201.9 MB. Free memory was 154.7 MB in the beginning and 132.3 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2020-09-11 23:31:55,289 INFO L168 Benchmark]: TraceAbstraction took 3517.54 ms. Allocated memory was 201.9 MB in the beginning and 246.9 MB in the end (delta: 45.1 MB). Free memory was 131.7 MB in the beginning and 143.9 MB in the end (delta: -12.2 MB). Peak memory consumption was 32.8 MB. Max. memory is 7.1 GB. [2020-09-11 23:31:55,294 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 782.13 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 100.2 MB in the beginning and 158.6 MB in the end (delta: -58.3 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 58.95 ms. Allocated memory is still 201.9 MB. Free memory was 158.6 MB in the beginning and 156.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 32.02 ms. Allocated memory is still 201.9 MB. Free memory was 156.0 MB in the beginning and 154.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 516.08 ms. Allocated memory is still 201.9 MB. Free memory was 154.7 MB in the beginning and 132.3 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3517.54 ms. Allocated memory was 201.9 MB in the beginning and 246.9 MB in the end (delta: 45.1 MB). Free memory was 131.7 MB in the beginning and 143.9 MB in the end (delta: -12.2 MB). Peak memory consumption was 32.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.3s, 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: 3.3s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 151 SDtfs, 154 SDslu, 227 SDs, 0 SdLazy, 66 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 111 GetRequests, 82 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, 0.1s 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...