/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/safe027_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-60655ea [2020-09-16 00:32:41,930 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-16 00:32:41,933 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-16 00:32:41,970 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-16 00:32:41,970 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-16 00:32:41,978 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-16 00:32:41,982 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-16 00:32:41,986 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-16 00:32:41,989 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-16 00:32:41,992 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-16 00:32:41,993 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-16 00:32:41,995 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-16 00:32:41,995 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-16 00:32:41,998 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-16 00:32:42,000 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-16 00:32:42,002 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-16 00:32:42,004 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-16 00:32:42,005 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-16 00:32:42,007 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-16 00:32:42,017 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-16 00:32:42,020 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-16 00:32:42,021 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-16 00:32:42,022 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-16 00:32:42,023 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-16 00:32:42,035 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-16 00:32:42,047 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-16 00:32:42,048 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-16 00:32:42,049 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-16 00:32:42,052 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-16 00:32:42,053 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-16 00:32:42,053 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-16 00:32:42,054 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-16 00:32:42,054 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-16 00:32:42,055 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-16 00:32:42,057 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-16 00:32:42,058 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-16 00:32:42,058 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-09-16 00:32:42,109 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-16 00:32:42,110 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-16 00:32:42,111 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-16 00:32:42,111 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-16 00:32:42,111 INFO L138 SettingsManager]: * Use SBE=true [2020-09-16 00:32:42,112 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-16 00:32:42,112 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-16 00:32:42,112 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-16 00:32:42,112 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-16 00:32:42,112 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-16 00:32:42,113 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-16 00:32:42,113 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-16 00:32:42,113 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-16 00:32:42,113 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-16 00:32:42,113 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-16 00:32:42,114 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-16 00:32:42,114 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-16 00:32:42,114 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-16 00:32:42,114 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-16 00:32:42,114 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-16 00:32:42,115 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-16 00:32:42,115 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-16 00:32:42,115 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-16 00:32:42,115 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-16 00:32:42,115 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-16 00:32:42,116 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-16 00:32:42,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-16 00:32:42,116 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-16 00:32:42,116 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-16 00:32:42,116 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-16 00:32:42,117 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-16 00:32:42,555 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-16 00:32:42,582 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-16 00:32:42,587 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-16 00:32:42,589 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-16 00:32:42,590 INFO L275 PluginConnector]: CDTParser initialized [2020-09-16 00:32:42,591 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc.i [2020-09-16 00:32:42,685 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f1aef2c4e/36f62b99b0c34e08b5bb66552e3af712/FLAG4db3b801d [2020-09-16 00:32:43,315 INFO L306 CDTParser]: Found 1 translation units. [2020-09-16 00:32:43,316 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc.i [2020-09-16 00:32:43,334 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f1aef2c4e/36f62b99b0c34e08b5bb66552e3af712/FLAG4db3b801d [2020-09-16 00:32:43,570 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f1aef2c4e/36f62b99b0c34e08b5bb66552e3af712 [2020-09-16 00:32:43,583 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-16 00:32:43,587 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-16 00:32:43,589 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-16 00:32:43,589 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-16 00:32:43,593 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-16 00:32:43,595 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 12:32:43" (1/1) ... [2020-09-16 00:32:43,599 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ece116e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:32:43, skipping insertion in model container [2020-09-16 00:32:43,600 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 12:32:43" (1/1) ... [2020-09-16 00:32:43,609 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-16 00:32:43,661 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-16 00:32:44,229 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-16 00:32:44,252 INFO L203 MainTranslator]: Completed pre-run [2020-09-16 00:32:44,301 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-16 00:32:44,396 INFO L208 MainTranslator]: Completed translation [2020-09-16 00:32:44,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:32:44 WrapperNode [2020-09-16 00:32:44,398 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-16 00:32:44,398 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-16 00:32:44,399 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-16 00:32:44,399 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-16 00:32:44,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:32:44" (1/1) ... [2020-09-16 00:32:44,431 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:32:44" (1/1) ... [2020-09-16 00:32:44,456 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-16 00:32:44,457 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-16 00:32:44,457 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-16 00:32:44,457 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-16 00:32:44,467 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:32:44" (1/1) ... [2020-09-16 00:32:44,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:32:44" (1/1) ... [2020-09-16 00:32:44,471 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:32:44" (1/1) ... [2020-09-16 00:32:44,471 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:32:44" (1/1) ... [2020-09-16 00:32:44,479 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:32:44" (1/1) ... [2020-09-16 00:32:44,482 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:32:44" (1/1) ... [2020-09-16 00:32:44,484 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:32:44" (1/1) ... [2020-09-16 00:32:44,488 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-16 00:32:44,488 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-16 00:32:44,489 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-16 00:32:44,489 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-16 00:32:44,490 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:32:44" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-16 00:32:44,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-16 00:32:44,570 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-16 00:32:44,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-16 00:32:44,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-16 00:32:44,571 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-16 00:32:44,571 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-16 00:32:44,571 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-16 00:32:44,572 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-16 00:32:44,572 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-16 00:32:44,572 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-16 00:32:44,572 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-09-16 00:32:44,572 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-09-16 00:32:44,573 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-16 00:32:44,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-16 00:32:44,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-16 00:32:44,576 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-16 00:32:45,069 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-16 00:32:45,070 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-16 00:32:45,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 12:32:45 BoogieIcfgContainer [2020-09-16 00:32:45,080 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-16 00:32:45,082 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-16 00:32:45,082 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-16 00:32:45,086 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-16 00:32:45,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 12:32:43" (1/3) ... [2020-09-16 00:32:45,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22d0c6a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 12:32:45, skipping insertion in model container [2020-09-16 00:32:45,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:32:44" (2/3) ... [2020-09-16 00:32:45,089 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22d0c6a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 12:32:45, skipping insertion in model container [2020-09-16 00:32:45,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 12:32:45" (3/3) ... [2020-09-16 00:32:45,091 INFO L109 eAbstractionObserver]: Analyzing ICFG safe027_pso.oepc.i [2020-09-16 00:32:45,103 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-16 00:32:45,103 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-16 00:32:45,114 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-16 00:32:45,116 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-16 00:32:45,149 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:32:45,149 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:32:45,149 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:32:45,150 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:32:45,150 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:32:45,150 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:32:45,151 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:32:45,151 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:32:45,151 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:32:45,152 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:32:45,152 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:32:45,152 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:32:45,153 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:32:45,153 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:32:45,153 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:32:45,153 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:32:45,154 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:32:45,154 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:32:45,155 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:32:45,155 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:32:45,155 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:32:45,155 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:32:45,156 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:32:45,156 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:32:45,161 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:32:45,161 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:32:45,162 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:32:45,162 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:32:45,170 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:32:45,170 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:32:45,170 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:32:45,171 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:32:45,173 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:32:45,173 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:32:45,174 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:32:45,174 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:32:45,176 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:32:45,177 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:32:45,177 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:32:45,177 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:32:45,203 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-09-16 00:32:45,233 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-16 00:32:45,233 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-16 00:32:45,233 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-16 00:32:45,233 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-16 00:32:45,233 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-16 00:32:45,234 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-16 00:32:45,234 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-16 00:32:45,234 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-16 00:32:45,254 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 82 transitions, 184 flow [2020-09-16 00:32:45,257 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 93 places, 82 transitions, 184 flow [2020-09-16 00:32:45,313 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2020-09-16 00:32:45,313 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-16 00:32:45,322 INFO L80 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-09-16 00:32:45,330 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 93 places, 82 transitions, 184 flow [2020-09-16 00:32:45,381 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2020-09-16 00:32:45,381 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-16 00:32:45,382 INFO L80 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-09-16 00:32:45,387 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1822 [2020-09-16 00:32:45,389 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-16 00:32:46,836 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-09-16 00:32:46,929 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2807 [2020-09-16 00:32:46,929 INFO L214 etLargeBlockEncoding]: Total number of compositions: 63 [2020-09-16 00:32:46,934 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 27 transitions, 74 flow [2020-09-16 00:32:47,003 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 850 states. [2020-09-16 00:32:47,006 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states. [2020-09-16 00:32:47,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-16 00:32:47,019 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 00:32:47,020 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 00:32:47,021 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 00:32:47,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 00:32:47,029 INFO L82 PathProgramCache]: Analyzing trace with hash 91051740, now seen corresponding path program 1 times [2020-09-16 00:32:47,052 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 00:32:47,053 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61564644] [2020-09-16 00:32:47,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 00:32:47,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 00:32:47,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 00:32:47,295 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61564644] [2020-09-16 00:32:47,296 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 00:32:47,296 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-16 00:32:47,297 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1153636344] [2020-09-16 00:32:47,298 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 00:32:47,303 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 00:32:47,321 INFO L274 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-09-16 00:32:47,321 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 00:32:47,324 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 00:32:47,325 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-16 00:32:47,325 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 00:32:47,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-16 00:32:47,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-16 00:32:47,349 INFO L87 Difference]: Start difference. First operand 850 states. Second operand 2 states. [2020-09-16 00:32:47,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 00:32:47,392 INFO L93 Difference]: Finished difference Result 850 states and 2994 transitions. [2020-09-16 00:32:47,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-16 00:32:47,394 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-09-16 00:32:47,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 00:32:47,427 INFO L225 Difference]: With dead ends: 850 [2020-09-16 00:32:47,427 INFO L226 Difference]: Without dead ends: 706 [2020-09-16 00:32:47,429 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-16 00:32:47,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-09-16 00:32:47,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2020-09-16 00:32:47,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2020-09-16 00:32:47,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 2442 transitions. [2020-09-16 00:32:47,586 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 2442 transitions. Word has length 10 [2020-09-16 00:32:47,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 00:32:47,589 INFO L479 AbstractCegarLoop]: Abstraction has 706 states and 2442 transitions. [2020-09-16 00:32:47,589 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-16 00:32:47,589 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 2442 transitions. [2020-09-16 00:32:47,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-16 00:32:47,593 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 00:32:47,593 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 00:32:47,594 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-16 00:32:47,594 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 00:32:47,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 00:32:47,595 INFO L82 PathProgramCache]: Analyzing trace with hash -1472387704, now seen corresponding path program 1 times [2020-09-16 00:32:47,596 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 00:32:47,597 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580270260] [2020-09-16 00:32:47,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 00:32:47,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 00:32:47,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 00:32:47,780 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580270260] [2020-09-16 00:32:47,780 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 00:32:47,780 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-16 00:32:47,781 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [565632760] [2020-09-16 00:32:47,781 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 00:32:47,782 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 00:32:47,784 INFO L274 McrAutomatonBuilder]: Finished intersection with 12 states and 11 transitions. [2020-09-16 00:32:47,784 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 00:32:47,785 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 00:32:47,787 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-16 00:32:47,787 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 00:32:47,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-16 00:32:47,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-16 00:32:47,788 INFO L87 Difference]: Start difference. First operand 706 states and 2442 transitions. Second operand 4 states. [2020-09-16 00:32:47,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 00:32:47,833 INFO L93 Difference]: Finished difference Result 778 states and 2592 transitions. [2020-09-16 00:32:47,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-16 00:32:47,834 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-09-16 00:32:47,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 00:32:47,841 INFO L225 Difference]: With dead ends: 778 [2020-09-16 00:32:47,841 INFO L226 Difference]: Without dead ends: 634 [2020-09-16 00:32:47,842 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-16 00:32:47,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2020-09-16 00:32:47,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 634. [2020-09-16 00:32:47,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 634 states. [2020-09-16 00:32:47,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 2148 transitions. [2020-09-16 00:32:47,871 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 2148 transitions. Word has length 11 [2020-09-16 00:32:47,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 00:32:47,871 INFO L479 AbstractCegarLoop]: Abstraction has 634 states and 2148 transitions. [2020-09-16 00:32:47,872 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-16 00:32:47,872 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 2148 transitions. [2020-09-16 00:32:47,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-16 00:32:47,874 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 00:32:47,874 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 00:32:47,875 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-16 00:32:47,875 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 00:32:47,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 00:32:47,875 INFO L82 PathProgramCache]: Analyzing trace with hash 1606888751, now seen corresponding path program 1 times [2020-09-16 00:32:47,876 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 00:32:47,876 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623089349] [2020-09-16 00:32:47,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 00:32:47,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 00:32:47,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 00:32:47,989 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623089349] [2020-09-16 00:32:47,990 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 00:32:47,990 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-16 00:32:47,990 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1897476815] [2020-09-16 00:32:47,990 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 00:32:47,992 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 00:32:47,994 INFO L274 McrAutomatonBuilder]: Finished intersection with 20 states and 26 transitions. [2020-09-16 00:32:47,995 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 00:32:48,054 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 00:32:48,054 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-16 00:32:48,054 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 00:32:48,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-16 00:32:48,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-16 00:32:48,055 INFO L87 Difference]: Start difference. First operand 634 states and 2148 transitions. Second operand 5 states. [2020-09-16 00:32:48,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 00:32:48,147 INFO L93 Difference]: Finished difference Result 814 states and 2703 transitions. [2020-09-16 00:32:48,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-16 00:32:48,148 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-09-16 00:32:48,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 00:32:48,152 INFO L225 Difference]: With dead ends: 814 [2020-09-16 00:32:48,152 INFO L226 Difference]: Without dead ends: 394 [2020-09-16 00:32:48,152 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-16 00:32:48,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2020-09-16 00:32:48,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2020-09-16 00:32:48,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-09-16 00:32:48,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1266 transitions. [2020-09-16 00:32:48,169 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 1266 transitions. Word has length 12 [2020-09-16 00:32:48,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 00:32:48,169 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 1266 transitions. [2020-09-16 00:32:48,169 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-16 00:32:48,170 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 1266 transitions. [2020-09-16 00:32:48,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-16 00:32:48,173 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 00:32:48,173 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 00:32:48,173 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-16 00:32:48,174 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 00:32:48,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 00:32:48,174 INFO L82 PathProgramCache]: Analyzing trace with hash -1921114608, now seen corresponding path program 1 times [2020-09-16 00:32:48,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 00:32:48,175 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935178932] [2020-09-16 00:32:48,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 00:32:48,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 00:32:48,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 00:32:48,290 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935178932] [2020-09-16 00:32:48,290 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 00:32:48,291 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-16 00:32:48,291 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [230654425] [2020-09-16 00:32:48,291 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 00:32:48,293 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 00:32:48,295 INFO L274 McrAutomatonBuilder]: Finished intersection with 16 states and 17 transitions. [2020-09-16 00:32:48,295 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 00:32:48,307 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 00:32:48,307 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-16 00:32:48,307 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 00:32:48,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-16 00:32:48,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-16 00:32:48,308 INFO L87 Difference]: Start difference. First operand 394 states and 1266 transitions. Second operand 4 states. [2020-09-16 00:32:48,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 00:32:48,337 INFO L93 Difference]: Finished difference Result 430 states and 1332 transitions. [2020-09-16 00:32:48,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-16 00:32:48,338 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-09-16 00:32:48,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 00:32:48,342 INFO L225 Difference]: With dead ends: 430 [2020-09-16 00:32:48,342 INFO L226 Difference]: Without dead ends: 358 [2020-09-16 00:32:48,342 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-16 00:32:48,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2020-09-16 00:32:48,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 358. [2020-09-16 00:32:48,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2020-09-16 00:32:48,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 1128 transitions. [2020-09-16 00:32:48,357 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 1128 transitions. Word has length 13 [2020-09-16 00:32:48,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 00:32:48,357 INFO L479 AbstractCegarLoop]: Abstraction has 358 states and 1128 transitions. [2020-09-16 00:32:48,357 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-16 00:32:48,357 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 1128 transitions. [2020-09-16 00:32:48,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-16 00:32:48,358 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 00:32:48,359 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 00:32:48,359 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-16 00:32:48,359 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 00:32:48,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 00:32:48,359 INFO L82 PathProgramCache]: Analyzing trace with hash -1081404616, now seen corresponding path program 1 times [2020-09-16 00:32:48,360 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 00:32:48,360 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378405612] [2020-09-16 00:32:48,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 00:32:48,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 00:32:48,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 00:32:48,452 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378405612] [2020-09-16 00:32:48,452 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 00:32:48,452 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-16 00:32:48,453 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1555993785] [2020-09-16 00:32:48,453 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 00:32:48,455 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 00:32:48,460 INFO L274 McrAutomatonBuilder]: Finished intersection with 24 states and 34 transitions. [2020-09-16 00:32:48,460 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 00:32:48,523 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 00:32:48,524 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-16 00:32:48,524 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 00:32:48,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-16 00:32:48,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-16 00:32:48,525 INFO L87 Difference]: Start difference. First operand 358 states and 1128 transitions. Second operand 5 states. [2020-09-16 00:32:48,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 00:32:48,597 INFO L93 Difference]: Finished difference Result 496 states and 1517 transitions. [2020-09-16 00:32:48,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-16 00:32:48,598 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-09-16 00:32:48,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 00:32:48,601 INFO L225 Difference]: With dead ends: 496 [2020-09-16 00:32:48,601 INFO L226 Difference]: Without dead ends: 262 [2020-09-16 00:32:48,601 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-16 00:32:48,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-09-16 00:32:48,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2020-09-16 00:32:48,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-09-16 00:32:48,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 771 transitions. [2020-09-16 00:32:48,611 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 771 transitions. Word has length 14 [2020-09-16 00:32:48,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 00:32:48,612 INFO L479 AbstractCegarLoop]: Abstraction has 262 states and 771 transitions. [2020-09-16 00:32:48,612 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-16 00:32:48,612 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 771 transitions. [2020-09-16 00:32:48,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-16 00:32:48,613 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 00:32:48,613 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 00:32:48,613 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-16 00:32:48,614 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 00:32:48,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 00:32:48,614 INFO L82 PathProgramCache]: Analyzing trace with hash -1257194017, now seen corresponding path program 1 times [2020-09-16 00:32:48,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 00:32:48,615 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294706151] [2020-09-16 00:32:48,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 00:32:48,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 00:32:48,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 00:32:48,690 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294706151] [2020-09-16 00:32:48,691 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 00:32:48,691 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-16 00:32:48,691 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [97535561] [2020-09-16 00:32:48,691 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 00:32:48,693 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 00:32:48,699 INFO L274 McrAutomatonBuilder]: Finished intersection with 34 states and 55 transitions. [2020-09-16 00:32:48,699 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 00:32:48,730 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-16 00:32:48,768 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-16 00:32:48,780 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-16 00:32:48,824 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-16 00:32:48,856 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-16 00:32:48,890 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-16 00:32:48,911 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-16 00:32:48,927 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-16 00:32:48,934 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [9912#(not (= 4 ~__unbuffered_cnt~0))] [2020-09-16 00:32:48,934 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-16 00:32:48,934 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 00:32:48,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-16 00:32:48,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-16 00:32:48,935 INFO L87 Difference]: Start difference. First operand 262 states and 771 transitions. Second operand 5 states. [2020-09-16 00:32:49,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 00:32:49,008 INFO L93 Difference]: Finished difference Result 263 states and 689 transitions. [2020-09-16 00:32:49,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-16 00:32:49,009 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-09-16 00:32:49,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 00:32:49,010 INFO L225 Difference]: With dead ends: 263 [2020-09-16 00:32:49,011 INFO L226 Difference]: Without dead ends: 182 [2020-09-16 00:32:49,011 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-16 00:32:49,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-09-16 00:32:49,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2020-09-16 00:32:49,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-09-16 00:32:49,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 443 transitions. [2020-09-16 00:32:49,017 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 443 transitions. Word has length 15 [2020-09-16 00:32:49,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 00:32:49,018 INFO L479 AbstractCegarLoop]: Abstraction has 182 states and 443 transitions. [2020-09-16 00:32:49,018 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-16 00:32:49,018 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 443 transitions. [2020-09-16 00:32:49,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-16 00:32:49,019 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 00:32:49,019 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 00:32:49,019 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-16 00:32:49,020 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 00:32:49,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 00:32:49,020 INFO L82 PathProgramCache]: Analyzing trace with hash -981483084, now seen corresponding path program 1 times [2020-09-16 00:32:49,020 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 00:32:49,021 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631133589] [2020-09-16 00:32:49,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 00:32:49,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 00:32:49,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 00:32:49,122 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631133589] [2020-09-16 00:32:49,122 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 00:32:49,122 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-16 00:32:49,123 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [362615500] [2020-09-16 00:32:49,123 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 00:32:49,125 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 00:32:49,132 INFO L274 McrAutomatonBuilder]: Finished intersection with 45 states and 77 transitions. [2020-09-16 00:32:49,132 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 00:32:49,165 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-16 00:32:49,182 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-16 00:32:49,205 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-16 00:32:49,282 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [10550#(<= ~__unbuffered_cnt~0 0)] [2020-09-16 00:32:49,283 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-16 00:32:49,283 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 00:32:49,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-16 00:32:49,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-16 00:32:49,284 INFO L87 Difference]: Start difference. First operand 182 states and 443 transitions. Second operand 7 states. [2020-09-16 00:32:49,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 00:32:49,361 INFO L93 Difference]: Finished difference Result 165 states and 373 transitions. [2020-09-16 00:32:49,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-16 00:32:49,362 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2020-09-16 00:32:49,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 00:32:49,364 INFO L225 Difference]: With dead ends: 165 [2020-09-16 00:32:49,364 INFO L226 Difference]: Without dead ends: 132 [2020-09-16 00:32:49,364 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 6 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-09-16 00:32:49,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-09-16 00:32:49,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2020-09-16 00:32:49,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-09-16 00:32:49,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 295 transitions. [2020-09-16 00:32:49,369 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 295 transitions. Word has length 17 [2020-09-16 00:32:49,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 00:32:49,370 INFO L479 AbstractCegarLoop]: Abstraction has 132 states and 295 transitions. [2020-09-16 00:32:49,370 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-16 00:32:49,370 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 295 transitions. [2020-09-16 00:32:49,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-16 00:32:49,371 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 00:32:49,371 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 00:32:49,371 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-16 00:32:49,371 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 00:32:49,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 00:32:49,372 INFO L82 PathProgramCache]: Analyzing trace with hash 1311703103, now seen corresponding path program 1 times [2020-09-16 00:32:49,372 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 00:32:49,372 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883996632] [2020-09-16 00:32:49,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 00:32:49,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 00:32:49,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 00:32:49,466 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883996632] [2020-09-16 00:32:49,466 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 00:32:49,466 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-16 00:32:49,467 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1370246816] [2020-09-16 00:32:49,467 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 00:32:49,470 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 00:32:49,478 INFO L274 McrAutomatonBuilder]: Finished intersection with 46 states and 75 transitions. [2020-09-16 00:32:49,479 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 00:32:49,492 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-16 00:32:49,583 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [10989#(<= ~__unbuffered_cnt~0 0)] [2020-09-16 00:32:49,584 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-16 00:32:49,584 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 00:32:49,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-16 00:32:49,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-09-16 00:32:49,585 INFO L87 Difference]: Start difference. First operand 132 states and 295 transitions. Second operand 8 states. [2020-09-16 00:32:49,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 00:32:49,684 INFO L93 Difference]: Finished difference Result 121 states and 271 transitions. [2020-09-16 00:32:49,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-16 00:32:49,685 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2020-09-16 00:32:49,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 00:32:49,686 INFO L225 Difference]: With dead ends: 121 [2020-09-16 00:32:49,686 INFO L226 Difference]: Without dead ends: 112 [2020-09-16 00:32:49,687 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-09-16 00:32:49,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-09-16 00:32:49,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2020-09-16 00:32:49,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-09-16 00:32:49,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 255 transitions. [2020-09-16 00:32:49,691 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 255 transitions. Word has length 19 [2020-09-16 00:32:49,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 00:32:49,692 INFO L479 AbstractCegarLoop]: Abstraction has 112 states and 255 transitions. [2020-09-16 00:32:49,692 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-16 00:32:49,692 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 255 transitions. [2020-09-16 00:32:49,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-16 00:32:49,693 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 00:32:49,693 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 00:32:49,693 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-16 00:32:49,693 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 00:32:49,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 00:32:49,694 INFO L82 PathProgramCache]: Analyzing trace with hash 188961609, now seen corresponding path program 1 times [2020-09-16 00:32:49,694 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 00:32:49,695 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575623603] [2020-09-16 00:32:49,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 00:32:49,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 00:32:49,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 00:32:49,796 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575623603] [2020-09-16 00:32:49,796 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 00:32:49,797 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-16 00:32:49,798 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1378828312] [2020-09-16 00:32:49,798 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 00:32:49,801 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 00:32:49,810 INFO L274 McrAutomatonBuilder]: Finished intersection with 48 states and 77 transitions. [2020-09-16 00:32:49,811 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 00:32:49,894 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 00:32:49,894 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-16 00:32:49,894 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 00:32:49,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-16 00:32:49,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-16 00:32:49,895 INFO L87 Difference]: Start difference. First operand 112 states and 255 transitions. Second operand 5 states. [2020-09-16 00:32:49,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 00:32:49,937 INFO L93 Difference]: Finished difference Result 146 states and 329 transitions. [2020-09-16 00:32:49,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-16 00:32:49,938 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-09-16 00:32:49,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 00:32:49,939 INFO L225 Difference]: With dead ends: 146 [2020-09-16 00:32:49,940 INFO L226 Difference]: Without dead ends: 52 [2020-09-16 00:32:49,940 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-16 00:32:49,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-09-16 00:32:49,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-09-16 00:32:49,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-09-16 00:32:49,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 98 transitions. [2020-09-16 00:32:49,943 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 98 transitions. Word has length 21 [2020-09-16 00:32:49,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 00:32:49,944 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 98 transitions. [2020-09-16 00:32:49,944 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-16 00:32:49,944 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 98 transitions. [2020-09-16 00:32:49,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-16 00:32:49,945 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 00:32:49,945 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 00:32:49,945 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-16 00:32:49,946 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 00:32:49,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 00:32:49,946 INFO L82 PathProgramCache]: Analyzing trace with hash -62971415, now seen corresponding path program 2 times [2020-09-16 00:32:49,947 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 00:32:49,947 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436627870] [2020-09-16 00:32:49,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 00:32:49,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 00:32:50,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 00:32:50,027 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436627870] [2020-09-16 00:32:50,028 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 00:32:50,028 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-16 00:32:50,028 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1350642839] [2020-09-16 00:32:50,029 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 00:32:50,053 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 00:32:50,059 INFO L274 McrAutomatonBuilder]: Finished intersection with 27 states and 31 transitions. [2020-09-16 00:32:50,059 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 00:32:50,082 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 00:32:50,083 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-16 00:32:50,083 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 00:32:50,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-16 00:32:50,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-16 00:32:50,084 INFO L87 Difference]: Start difference. First operand 52 states and 98 transitions. Second operand 5 states. [2020-09-16 00:32:50,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 00:32:50,120 INFO L93 Difference]: Finished difference Result 51 states and 97 transitions. [2020-09-16 00:32:50,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-16 00:32:50,121 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-09-16 00:32:50,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 00:32:50,121 INFO L225 Difference]: With dead ends: 51 [2020-09-16 00:32:50,121 INFO L226 Difference]: Without dead ends: 0 [2020-09-16 00:32:50,122 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-16 00:32:50,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-16 00:32:50,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-16 00:32:50,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-16 00:32:50,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-16 00:32:50,123 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-09-16 00:32:50,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 00:32:50,123 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-16 00:32:50,123 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-16 00:32:50,123 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-16 00:32:50,124 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-16 00:32:50,124 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-16 00:32:50,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 12:32:50 BasicIcfg [2020-09-16 00:32:50,130 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-16 00:32:50,133 INFO L168 Benchmark]: Toolchain (without parser) took 6547.69 ms. Allocated memory was 141.0 MB in the beginning and 283.6 MB in the end (delta: 142.6 MB). Free memory was 102.8 MB in the beginning and 237.7 MB in the end (delta: -134.9 MB). Peak memory consumption was 7.7 MB. Max. memory is 7.1 GB. [2020-09-16 00:32:50,134 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-09-16 00:32:50,135 INFO L168 Benchmark]: CACSL2BoogieTranslator took 809.15 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 102.1 MB in the beginning and 161.4 MB in the end (delta: -59.3 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. [2020-09-16 00:32:50,136 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.00 ms. Allocated memory is still 204.5 MB. Free memory was 161.4 MB in the beginning and 159.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-09-16 00:32:50,137 INFO L168 Benchmark]: Boogie Preprocessor took 31.26 ms. Allocated memory is still 204.5 MB. Free memory was 159.5 MB in the beginning and 158.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-09-16 00:32:50,137 INFO L168 Benchmark]: RCFGBuilder took 591.85 ms. Allocated memory is still 204.5 MB. Free memory was 157.5 MB in the beginning and 134.0 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. [2020-09-16 00:32:50,138 INFO L168 Benchmark]: TraceAbstraction took 5047.88 ms. Allocated memory was 204.5 MB in the beginning and 283.6 MB in the end (delta: 79.2 MB). Free memory was 133.3 MB in the beginning and 237.7 MB in the end (delta: -104.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-16 00:32:50,142 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 809.15 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 102.1 MB in the beginning and 161.4 MB in the end (delta: -59.3 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 58.00 ms. Allocated memory is still 204.5 MB. Free memory was 161.4 MB in the beginning and 159.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 31.26 ms. Allocated memory is still 204.5 MB. Free memory was 159.5 MB in the beginning and 158.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 591.85 ms. Allocated memory is still 204.5 MB. Free memory was 157.5 MB in the beginning and 134.0 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5047.88 ms. Allocated memory was 204.5 MB in the beginning and 283.6 MB in the end (delta: 79.2 MB). Free memory was 133.3 MB in the beginning and 237.7 MB in the end (delta: -104.3 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: 1.6s, 93 ProgramPointsBefore, 39 ProgramPointsAfterwards, 82 TransitionsBefore, 27 TransitionsAfterwards, 1822 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 933 VarBasedMoverChecksPositive, 19 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2807 CheckedPairsTotal, 63 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 5 procedures, 81 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.8s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 245 SDtfs, 258 SDslu, 466 SDs, 0 SdLazy, 201 SolverSat, 47 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 170 GetRequests, 112 SyntacticMatches, 12 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=850occurred 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: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 153 NumberOfCodeBlocks, 153 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 143 ConstructedInterpolants, 0 QuantifiedInterpolants, 6535 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...