/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/safe016_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-bf4350c [2020-09-18 01:01:23,507 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-18 01:01:23,512 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-18 01:01:23,553 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-18 01:01:23,554 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-18 01:01:23,565 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-18 01:01:23,567 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-18 01:01:23,570 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-18 01:01:23,571 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-18 01:01:23,573 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-18 01:01:23,574 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-18 01:01:23,576 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-18 01:01:23,577 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-18 01:01:23,580 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-18 01:01:23,583 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-18 01:01:23,584 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-18 01:01:23,586 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-18 01:01:23,588 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-18 01:01:23,590 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-18 01:01:23,597 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-18 01:01:23,598 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-18 01:01:23,600 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-18 01:01:23,601 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-18 01:01:23,602 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-18 01:01:23,606 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-18 01:01:23,606 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-18 01:01:23,606 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-18 01:01:23,609 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-18 01:01:23,610 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-18 01:01:23,612 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-18 01:01:23,612 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-18 01:01:23,613 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-18 01:01:23,613 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-18 01:01:23,614 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-18 01:01:23,615 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-18 01:01:23,615 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-18 01:01:23,616 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-18 01:01:23,616 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-18 01:01:23,617 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-18 01:01:23,618 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-18 01:01:23,619 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-18 01:01:23,620 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-09-18 01:01:23,665 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-18 01:01:23,666 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-18 01:01:23,668 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-18 01:01:23,668 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-18 01:01:23,668 INFO L138 SettingsManager]: * Use SBE=true [2020-09-18 01:01:23,669 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-18 01:01:23,669 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-18 01:01:23,669 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-18 01:01:23,669 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-18 01:01:23,669 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-18 01:01:23,670 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-18 01:01:23,671 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-18 01:01:23,671 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-18 01:01:23,671 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-18 01:01:23,672 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-18 01:01:23,672 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-18 01:01:23,672 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-18 01:01:23,672 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-18 01:01:23,672 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-18 01:01:23,673 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-18 01:01:23,673 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-18 01:01:23,673 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-18 01:01:23,673 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-18 01:01:23,673 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-18 01:01:23,674 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-18 01:01:23,674 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-18 01:01:23,674 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-18 01:01:23,674 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-18 01:01:23,674 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-18 01:01:23,675 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-18 01:01:23,675 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-18 01:01:24,110 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-18 01:01:24,135 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-18 01:01:24,145 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-18 01:01:24,147 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-18 01:01:24,148 INFO L275 PluginConnector]: CDTParser initialized [2020-09-18 01:01:24,151 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_tso.oepc.i [2020-09-18 01:01:24,224 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3847b6569/146761c1b80e4ba89a9ae3a5bb70ab9e/FLAG166bc0189 [2020-09-18 01:01:24,832 INFO L306 CDTParser]: Found 1 translation units. [2020-09-18 01:01:24,832 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_tso.oepc.i [2020-09-18 01:01:24,850 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3847b6569/146761c1b80e4ba89a9ae3a5bb70ab9e/FLAG166bc0189 [2020-09-18 01:01:25,070 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3847b6569/146761c1b80e4ba89a9ae3a5bb70ab9e [2020-09-18 01:01:25,082 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-18 01:01:25,088 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-18 01:01:25,089 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-18 01:01:25,089 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-18 01:01:25,093 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-18 01:01:25,095 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 01:01:25" (1/1) ... [2020-09-18 01:01:25,099 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f1de271 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:01:25, skipping insertion in model container [2020-09-18 01:01:25,099 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 01:01:25" (1/1) ... [2020-09-18 01:01:25,109 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-18 01:01:25,165 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-18 01:01:25,659 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-18 01:01:25,676 INFO L203 MainTranslator]: Completed pre-run [2020-09-18 01:01:25,771 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-18 01:01:25,869 INFO L208 MainTranslator]: Completed translation [2020-09-18 01:01:25,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:01:25 WrapperNode [2020-09-18 01:01:25,870 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-18 01:01:25,871 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-18 01:01:25,871 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-18 01:01:25,871 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-18 01:01:25,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:01:25" (1/1) ... [2020-09-18 01:01:25,899 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:01:25" (1/1) ... [2020-09-18 01:01:25,923 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-18 01:01:25,924 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-18 01:01:25,924 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-18 01:01:25,924 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-18 01:01:25,933 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:01:25" (1/1) ... [2020-09-18 01:01:25,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:01:25" (1/1) ... [2020-09-18 01:01:25,937 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:01:25" (1/1) ... [2020-09-18 01:01:25,937 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:01:25" (1/1) ... [2020-09-18 01:01:25,944 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:01:25" (1/1) ... [2020-09-18 01:01:25,947 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:01:25" (1/1) ... [2020-09-18 01:01:25,950 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:01:25" (1/1) ... [2020-09-18 01:01:25,953 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-18 01:01:25,954 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-18 01:01:25,954 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-18 01:01:25,954 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-18 01:01:25,955 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:01:25" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-18 01:01:26,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-18 01:01:26,028 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-18 01:01:26,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-18 01:01:26,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-18 01:01:26,029 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-18 01:01:26,029 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-18 01:01:26,029 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-18 01:01:26,030 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-18 01:01:26,030 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-18 01:01:26,030 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-18 01:01:26,030 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-09-18 01:01:26,030 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-09-18 01:01:26,031 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-18 01:01:26,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-18 01:01:26,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-18 01:01:26,034 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-18 01:01:26,463 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-18 01:01:26,463 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-18 01:01:26,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 01:01:26 BoogieIcfgContainer [2020-09-18 01:01:26,469 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-18 01:01:26,474 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-18 01:01:26,474 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-18 01:01:26,478 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-18 01:01:26,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 01:01:25" (1/3) ... [2020-09-18 01:01:26,479 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ee8a244 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 01:01:26, skipping insertion in model container [2020-09-18 01:01:26,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:01:25" (2/3) ... [2020-09-18 01:01:26,479 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ee8a244 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 01:01:26, skipping insertion in model container [2020-09-18 01:01:26,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 01:01:26" (3/3) ... [2020-09-18 01:01:26,482 INFO L109 eAbstractionObserver]: Analyzing ICFG safe016_tso.oepc.i [2020-09-18 01:01:26,494 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-18 01:01:26,494 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-18 01:01:26,504 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-18 01:01:26,506 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-18 01:01:26,538 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:01:26,538 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:01:26,538 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:01:26,539 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:01:26,539 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:01:26,539 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:01:26,540 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:01:26,540 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:01:26,540 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:01:26,540 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:01:26,541 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:01:26,541 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:01:26,542 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:01:26,542 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:01:26,542 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:01:26,542 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:01:26,543 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:01:26,543 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:01:26,543 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:01:26,544 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:01:26,544 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:01:26,544 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:01:26,544 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:01:26,545 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:01:26,549 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:01:26,549 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:01:26,550 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:01:26,550 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:01:26,560 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:01:26,560 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:01:26,560 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:01:26,561 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:01:26,563 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:01:26,564 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:01:26,564 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:01:26,564 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:01:26,566 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:01:26,567 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:01:26,567 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:01:26,567 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:01:26,590 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-09-18 01:01:26,613 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-18 01:01:26,613 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-18 01:01:26,613 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-18 01:01:26,614 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-18 01:01:26,614 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-18 01:01:26,614 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-18 01:01:26,614 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-18 01:01:26,614 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-18 01:01:26,631 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 80 transitions, 180 flow [2020-09-18 01:01:26,634 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 91 places, 80 transitions, 180 flow [2020-09-18 01:01:26,680 INFO L129 PetriNetUnfolder]: 2/76 cut-off events. [2020-09-18 01:01:26,680 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-18 01:01:26,686 INFO L80 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 76 events. 2/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-09-18 01:01:26,690 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 91 places, 80 transitions, 180 flow [2020-09-18 01:01:26,713 INFO L129 PetriNetUnfolder]: 2/76 cut-off events. [2020-09-18 01:01:26,713 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-18 01:01:26,714 INFO L80 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 76 events. 2/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-09-18 01:01:26,717 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1822 [2020-09-18 01:01:26,718 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-18 01:01:28,037 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2020-09-18 01:01:28,128 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2895 [2020-09-18 01:01:28,128 INFO L214 etLargeBlockEncoding]: Total number of compositions: 62 [2020-09-18 01:01:28,133 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 27 transitions, 74 flow [2020-09-18 01:01:28,194 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 850 states. [2020-09-18 01:01:28,197 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states. [2020-09-18 01:01:28,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-18 01:01:28,210 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 01:01:28,211 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 01:01:28,212 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 01:01:28,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 01:01:28,219 INFO L82 PathProgramCache]: Analyzing trace with hash -1118879254, now seen corresponding path program 1 times [2020-09-18 01:01:28,246 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 01:01:28,247 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870225015] [2020-09-18 01:01:28,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 01:01:28,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 01:01:28,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 01:01:28,467 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870225015] [2020-09-18 01:01:28,468 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 01:01:28,469 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-18 01:01:28,470 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1170830905] [2020-09-18 01:01:28,471 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 01:01:28,476 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 01:01:28,503 INFO L274 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-09-18 01:01:28,503 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 01:01:28,514 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 01:01:28,519 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-18 01:01:28,519 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 01:01:28,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-18 01:01:28,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-18 01:01:28,543 INFO L87 Difference]: Start difference. First operand 850 states. Second operand 2 states. [2020-09-18 01:01:28,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 01:01:28,596 INFO L93 Difference]: Finished difference Result 850 states and 2994 transitions. [2020-09-18 01:01:28,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-18 01:01:28,599 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-09-18 01:01:28,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 01:01:28,636 INFO L225 Difference]: With dead ends: 850 [2020-09-18 01:01:28,636 INFO L226 Difference]: Without dead ends: 706 [2020-09-18 01:01:28,638 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 [2020-09-18 01:01:28,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-09-18 01:01:28,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2020-09-18 01:01:28,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2020-09-18 01:01:28,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 2442 transitions. [2020-09-18 01:01:28,802 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 2442 transitions. Word has length 10 [2020-09-18 01:01:28,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 01:01:28,803 INFO L479 AbstractCegarLoop]: Abstraction has 706 states and 2442 transitions. [2020-09-18 01:01:28,803 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-18 01:01:28,803 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 2442 transitions. [2020-09-18 01:01:28,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-18 01:01:28,806 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 01:01:28,807 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 01:01:28,807 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-18 01:01:28,807 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 01:01:28,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 01:01:28,808 INFO L82 PathProgramCache]: Analyzing trace with hash -325524913, now seen corresponding path program 1 times [2020-09-18 01:01:28,808 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 01:01:28,808 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942014077] [2020-09-18 01:01:28,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 01:01:28,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 01:01:28,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 01:01:28,969 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942014077] [2020-09-18 01:01:28,970 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 01:01:28,970 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-18 01:01:28,970 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [937239265] [2020-09-18 01:01:28,970 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 01:01:28,971 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 01:01:28,973 INFO L274 McrAutomatonBuilder]: Finished intersection with 12 states and 11 transitions. [2020-09-18 01:01:28,973 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 01:01:28,974 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 01:01:28,975 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 01:01:28,975 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 01:01:28,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 01:01:28,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 01:01:28,976 INFO L87 Difference]: Start difference. First operand 706 states and 2442 transitions. Second operand 4 states. [2020-09-18 01:01:29,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 01:01:29,026 INFO L93 Difference]: Finished difference Result 802 states and 2662 transitions. [2020-09-18 01:01:29,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-18 01:01:29,027 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-09-18 01:01:29,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 01:01:29,033 INFO L225 Difference]: With dead ends: 802 [2020-09-18 01:01:29,033 INFO L226 Difference]: Without dead ends: 658 [2020-09-18 01:01:29,035 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 [2020-09-18 01:01:29,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2020-09-18 01:01:29,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 658. [2020-09-18 01:01:29,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 658 states. [2020-09-18 01:01:29,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 2230 transitions. [2020-09-18 01:01:29,074 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 2230 transitions. Word has length 11 [2020-09-18 01:01:29,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 01:01:29,075 INFO L479 AbstractCegarLoop]: Abstraction has 658 states and 2230 transitions. [2020-09-18 01:01:29,075 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 01:01:29,075 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 2230 transitions. [2020-09-18 01:01:29,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-18 01:01:29,077 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 01:01:29,078 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 01:01:29,078 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-18 01:01:29,078 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 01:01:29,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 01:01:29,079 INFO L82 PathProgramCache]: Analyzing trace with hash -1502334909, now seen corresponding path program 1 times [2020-09-18 01:01:29,079 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 01:01:29,079 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100266248] [2020-09-18 01:01:29,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 01:01:29,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 01:01:29,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 01:01:29,174 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100266248] [2020-09-18 01:01:29,175 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 01:01:29,175 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-18 01:01:29,175 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [52658139] [2020-09-18 01:01:29,175 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 01:01:29,178 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 01:01:29,179 INFO L274 McrAutomatonBuilder]: Finished intersection with 14 states and 14 transitions. [2020-09-18 01:01:29,180 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 01:01:29,191 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 01:01:29,192 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 01:01:29,192 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 01:01:29,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 01:01:29,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 01:01:29,193 INFO L87 Difference]: Start difference. First operand 658 states and 2230 transitions. Second operand 4 states. [2020-09-18 01:01:29,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 01:01:29,236 INFO L93 Difference]: Finished difference Result 738 states and 2404 transitions. [2020-09-18 01:01:29,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-18 01:01:29,237 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-09-18 01:01:29,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 01:01:29,242 INFO L225 Difference]: With dead ends: 738 [2020-09-18 01:01:29,242 INFO L226 Difference]: Without dead ends: 618 [2020-09-18 01:01:29,243 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-18 01:01:29,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2020-09-18 01:01:29,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 618. [2020-09-18 01:01:29,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 618 states. [2020-09-18 01:01:29,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 2058 transitions. [2020-09-18 01:01:29,291 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 2058 transitions. Word has length 12 [2020-09-18 01:01:29,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 01:01:29,291 INFO L479 AbstractCegarLoop]: Abstraction has 618 states and 2058 transitions. [2020-09-18 01:01:29,291 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 01:01:29,292 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 2058 transitions. [2020-09-18 01:01:29,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-18 01:01:29,294 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 01:01:29,295 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 01:01:29,295 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-18 01:01:29,295 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 01:01:29,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 01:01:29,295 INFO L82 PathProgramCache]: Analyzing trace with hash 672248787, now seen corresponding path program 1 times [2020-09-18 01:01:29,296 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 01:01:29,296 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520719779] [2020-09-18 01:01:29,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 01:01:29,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 01:01:29,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 01:01:29,379 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520719779] [2020-09-18 01:01:29,379 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 01:01:29,379 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-18 01:01:29,380 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [201925137] [2020-09-18 01:01:29,380 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 01:01:29,381 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 01:01:29,384 INFO L274 McrAutomatonBuilder]: Finished intersection with 22 states and 30 transitions. [2020-09-18 01:01:29,384 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 01:01:29,432 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 01:01:29,432 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 01:01:29,433 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 01:01:29,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 01:01:29,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 01:01:29,434 INFO L87 Difference]: Start difference. First operand 618 states and 2058 transitions. Second operand 4 states. [2020-09-18 01:01:29,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 01:01:29,459 INFO L93 Difference]: Finished difference Result 658 states and 2130 transitions. [2020-09-18 01:01:29,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-18 01:01:29,459 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-09-18 01:01:29,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 01:01:29,464 INFO L225 Difference]: With dead ends: 658 [2020-09-18 01:01:29,465 INFO L226 Difference]: Without dead ends: 578 [2020-09-18 01:01:29,466 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-18 01:01:29,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2020-09-18 01:01:29,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 578. [2020-09-18 01:01:29,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 578 states. [2020-09-18 01:01:29,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 1906 transitions. [2020-09-18 01:01:29,487 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 1906 transitions. Word has length 13 [2020-09-18 01:01:29,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 01:01:29,487 INFO L479 AbstractCegarLoop]: Abstraction has 578 states and 1906 transitions. [2020-09-18 01:01:29,487 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 01:01:29,488 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 1906 transitions. [2020-09-18 01:01:29,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-18 01:01:29,489 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 01:01:29,489 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 01:01:29,490 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-18 01:01:29,490 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 01:01:29,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 01:01:29,490 INFO L82 PathProgramCache]: Analyzing trace with hash 796896076, now seen corresponding path program 1 times [2020-09-18 01:01:29,491 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 01:01:29,491 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502279085] [2020-09-18 01:01:29,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 01:01:29,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 01:01:29,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 01:01:29,564 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502279085] [2020-09-18 01:01:29,564 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 01:01:29,564 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-18 01:01:29,564 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1326530429] [2020-09-18 01:01:29,564 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 01:01:29,566 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 01:01:29,568 INFO L274 McrAutomatonBuilder]: Finished intersection with 28 states and 43 transitions. [2020-09-18 01:01:29,569 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 01:01:29,617 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 01:01:29,617 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 01:01:29,617 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 01:01:29,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 01:01:29,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 01:01:29,618 INFO L87 Difference]: Start difference. First operand 578 states and 1906 transitions. Second operand 4 states. [2020-09-18 01:01:29,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 01:01:29,670 INFO L93 Difference]: Finished difference Result 814 states and 2558 transitions. [2020-09-18 01:01:29,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-18 01:01:29,671 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-09-18 01:01:29,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 01:01:29,676 INFO L225 Difference]: With dead ends: 814 [2020-09-18 01:01:29,676 INFO L226 Difference]: Without dead ends: 618 [2020-09-18 01:01:29,677 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-18 01:01:29,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2020-09-18 01:01:29,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 538. [2020-09-18 01:01:29,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2020-09-18 01:01:29,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1706 transitions. [2020-09-18 01:01:29,697 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1706 transitions. Word has length 14 [2020-09-18 01:01:29,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 01:01:29,698 INFO L479 AbstractCegarLoop]: Abstraction has 538 states and 1706 transitions. [2020-09-18 01:01:29,698 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 01:01:29,698 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1706 transitions. [2020-09-18 01:01:29,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-18 01:01:29,699 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 01:01:29,700 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 01:01:29,700 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-18 01:01:29,700 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 01:01:29,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 01:01:29,700 INFO L82 PathProgramCache]: Analyzing trace with hash 1106275611, now seen corresponding path program 1 times [2020-09-18 01:01:29,701 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 01:01:29,701 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602041730] [2020-09-18 01:01:29,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 01:01:29,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 01:01:29,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 01:01:29,777 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602041730] [2020-09-18 01:01:29,777 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 01:01:29,777 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-18 01:01:29,778 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1286986647] [2020-09-18 01:01:29,778 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 01:01:29,780 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 01:01:29,782 INFO L274 McrAutomatonBuilder]: Finished intersection with 26 states and 38 transitions. [2020-09-18 01:01:29,783 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 01:01:29,832 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 01:01:29,833 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-18 01:01:29,833 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 01:01:29,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-18 01:01:29,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-18 01:01:29,834 INFO L87 Difference]: Start difference. First operand 538 states and 1706 transitions. Second operand 5 states. [2020-09-18 01:01:29,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 01:01:29,876 INFO L93 Difference]: Finished difference Result 838 states and 2616 transitions. [2020-09-18 01:01:29,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-18 01:01:29,877 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-09-18 01:01:29,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 01:01:29,882 INFO L225 Difference]: With dead ends: 838 [2020-09-18 01:01:29,882 INFO L226 Difference]: Without dead ends: 490 [2020-09-18 01:01:29,882 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-18 01:01:29,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2020-09-18 01:01:29,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 490. [2020-09-18 01:01:29,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2020-09-18 01:01:29,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 1516 transitions. [2020-09-18 01:01:29,900 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 1516 transitions. Word has length 14 [2020-09-18 01:01:29,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 01:01:29,901 INFO L479 AbstractCegarLoop]: Abstraction has 490 states and 1516 transitions. [2020-09-18 01:01:29,901 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-18 01:01:29,901 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 1516 transitions. [2020-09-18 01:01:29,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-18 01:01:29,903 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 01:01:29,903 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 01:01:29,903 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-18 01:01:29,903 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 01:01:29,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 01:01:29,904 INFO L82 PathProgramCache]: Analyzing trace with hash -635139139, now seen corresponding path program 2 times [2020-09-18 01:01:29,904 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 01:01:29,905 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016137717] [2020-09-18 01:01:29,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 01:01:29,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 01:01:29,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 01:01:29,981 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016137717] [2020-09-18 01:01:29,981 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 01:01:29,981 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-18 01:01:29,982 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [867006805] [2020-09-18 01:01:29,982 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 01:01:29,983 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 01:01:29,986 INFO L274 McrAutomatonBuilder]: Finished intersection with 28 states and 42 transitions. [2020-09-18 01:01:29,987 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 01:01:30,049 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 01:01:30,049 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 01:01:30,049 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 01:01:30,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 01:01:30,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 01:01:30,050 INFO L87 Difference]: Start difference. First operand 490 states and 1516 transitions. Second operand 4 states. [2020-09-18 01:01:30,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 01:01:30,074 INFO L93 Difference]: Finished difference Result 514 states and 1556 transitions. [2020-09-18 01:01:30,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-18 01:01:30,074 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-09-18 01:01:30,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 01:01:30,078 INFO L225 Difference]: With dead ends: 514 [2020-09-18 01:01:30,078 INFO L226 Difference]: Without dead ends: 466 [2020-09-18 01:01:30,079 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-18 01:01:30,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2020-09-18 01:01:30,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 466. [2020-09-18 01:01:30,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 466 states. [2020-09-18 01:01:30,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 1428 transitions. [2020-09-18 01:01:30,110 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 1428 transitions. Word has length 14 [2020-09-18 01:01:30,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 01:01:30,111 INFO L479 AbstractCegarLoop]: Abstraction has 466 states and 1428 transitions. [2020-09-18 01:01:30,111 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 01:01:30,111 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 1428 transitions. [2020-09-18 01:01:30,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-18 01:01:30,112 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 01:01:30,112 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 01:01:30,113 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-18 01:01:30,113 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 01:01:30,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 01:01:30,113 INFO L82 PathProgramCache]: Analyzing trace with hash -1523462552, now seen corresponding path program 1 times [2020-09-18 01:01:30,114 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 01:01:30,114 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163431071] [2020-09-18 01:01:30,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 01:01:30,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 01:01:30,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 01:01:30,178 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163431071] [2020-09-18 01:01:30,178 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 01:01:30,178 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-18 01:01:30,178 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1049557070] [2020-09-18 01:01:30,178 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 01:01:30,180 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 01:01:30,184 INFO L274 McrAutomatonBuilder]: Finished intersection with 38 states and 61 transitions. [2020-09-18 01:01:30,184 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 01:01:30,207 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 01:01:30,208 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 01:01:30,208 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 01:01:30,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 01:01:30,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 01:01:30,208 INFO L87 Difference]: Start difference. First operand 466 states and 1428 transitions. Second operand 4 states. [2020-09-18 01:01:30,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 01:01:30,240 INFO L93 Difference]: Finished difference Result 686 states and 2008 transitions. [2020-09-18 01:01:30,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-18 01:01:30,241 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-09-18 01:01:30,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 01:01:30,244 INFO L225 Difference]: With dead ends: 686 [2020-09-18 01:01:30,244 INFO L226 Difference]: Without dead ends: 490 [2020-09-18 01:01:30,245 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-18 01:01:30,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2020-09-18 01:01:30,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 442. [2020-09-18 01:01:30,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2020-09-18 01:01:30,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 1272 transitions. [2020-09-18 01:01:30,259 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 1272 transitions. Word has length 15 [2020-09-18 01:01:30,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 01:01:30,259 INFO L479 AbstractCegarLoop]: Abstraction has 442 states and 1272 transitions. [2020-09-18 01:01:30,259 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 01:01:30,259 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 1272 transitions. [2020-09-18 01:01:30,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-18 01:01:30,260 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 01:01:30,261 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 01:01:30,261 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-18 01:01:30,261 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 01:01:30,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 01:01:30,261 INFO L82 PathProgramCache]: Analyzing trace with hash -1081767860, now seen corresponding path program 1 times [2020-09-18 01:01:30,262 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 01:01:30,262 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431799652] [2020-09-18 01:01:30,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 01:01:30,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 01:01:30,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 01:01:30,332 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431799652] [2020-09-18 01:01:30,333 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 01:01:30,333 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-18 01:01:30,333 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2062234027] [2020-09-18 01:01:30,333 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 01:01:30,335 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 01:01:30,340 INFO L274 McrAutomatonBuilder]: Finished intersection with 46 states and 85 transitions. [2020-09-18 01:01:30,340 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 01:01:30,472 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 01:01:30,473 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-18 01:01:30,473 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 01:01:30,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-18 01:01:30,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-18 01:01:30,474 INFO L87 Difference]: Start difference. First operand 442 states and 1272 transitions. Second operand 5 states. [2020-09-18 01:01:30,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 01:01:30,509 INFO L93 Difference]: Finished difference Result 578 states and 1616 transitions. [2020-09-18 01:01:30,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-18 01:01:30,510 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-09-18 01:01:30,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 01:01:30,512 INFO L225 Difference]: With dead ends: 578 [2020-09-18 01:01:30,512 INFO L226 Difference]: Without dead ends: 254 [2020-09-18 01:01:30,512 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-18 01:01:30,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-09-18 01:01:30,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 254. [2020-09-18 01:01:30,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-09-18 01:01:30,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 691 transitions. [2020-09-18 01:01:30,520 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 691 transitions. Word has length 15 [2020-09-18 01:01:30,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 01:01:30,520 INFO L479 AbstractCegarLoop]: Abstraction has 254 states and 691 transitions. [2020-09-18 01:01:30,521 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-18 01:01:30,521 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 691 transitions. [2020-09-18 01:01:30,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-18 01:01:30,522 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 01:01:30,522 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 01:01:30,522 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-18 01:01:30,522 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 01:01:30,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 01:01:30,522 INFO L82 PathProgramCache]: Analyzing trace with hash 807678122, now seen corresponding path program 2 times [2020-09-18 01:01:30,523 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 01:01:30,523 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941496447] [2020-09-18 01:01:30,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 01:01:30,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 01:01:30,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 01:01:30,580 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941496447] [2020-09-18 01:01:30,580 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 01:01:30,580 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-18 01:01:30,580 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [249972648] [2020-09-18 01:01:30,581 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 01:01:30,582 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 01:01:30,586 INFO L274 McrAutomatonBuilder]: Finished intersection with 34 states and 55 transitions. [2020-09-18 01:01:30,586 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 01:01:30,609 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 01:01:30,627 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 01:01:30,635 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 01:01:30,650 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 01:01:30,657 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 01:01:30,668 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 01:01:30,671 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 01:01:30,672 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 01:01:30,672 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 01:01:30,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 01:01:30,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 01:01:30,673 INFO L87 Difference]: Start difference. First operand 254 states and 691 transitions. Second operand 4 states. [2020-09-18 01:01:30,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 01:01:30,702 INFO L93 Difference]: Finished difference Result 182 states and 467 transitions. [2020-09-18 01:01:30,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-18 01:01:30,702 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-09-18 01:01:30,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 01:01:30,703 INFO L225 Difference]: With dead ends: 182 [2020-09-18 01:01:30,703 INFO L226 Difference]: Without dead ends: 0 [2020-09-18 01:01:30,703 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-18 01:01:30,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-18 01:01:30,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-18 01:01:30,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-18 01:01:30,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-18 01:01:30,704 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-09-18 01:01:30,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 01:01:30,705 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-18 01:01:30,705 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 01:01:30,705 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-18 01:01:30,705 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-18 01:01:30,705 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-18 01:01:30,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 01:01:30 BasicIcfg [2020-09-18 01:01:30,770 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-18 01:01:30,772 INFO L168 Benchmark]: Toolchain (without parser) took 5688.64 ms. Allocated memory was 141.0 MB in the beginning and 286.3 MB in the end (delta: 145.2 MB). Free memory was 103.3 MB in the beginning and 135.9 MB in the end (delta: -32.7 MB). Peak memory consumption was 112.5 MB. Max. memory is 7.1 GB. [2020-09-18 01:01:30,773 INFO L168 Benchmark]: CDTParser took 0.20 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: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-18 01:01:30,774 INFO L168 Benchmark]: CACSL2BoogieTranslator took 781.42 ms. Allocated memory was 141.0 MB in the beginning and 205.5 MB in the end (delta: 64.5 MB). Free memory was 102.6 MB in the beginning and 162.6 MB in the end (delta: -59.9 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2020-09-18 01:01:30,775 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.49 ms. Allocated memory is still 205.5 MB. Free memory was 162.6 MB in the beginning and 160.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-09-18 01:01:30,776 INFO L168 Benchmark]: Boogie Preprocessor took 29.77 ms. Allocated memory is still 205.5 MB. Free memory was 160.5 MB in the beginning and 158.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-18 01:01:30,776 INFO L168 Benchmark]: RCFGBuilder took 515.46 ms. Allocated memory is still 205.5 MB. Free memory was 158.5 MB in the beginning and 135.0 MB in the end (delta: 23.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. [2020-09-18 01:01:30,777 INFO L168 Benchmark]: TraceAbstraction took 4296.90 ms. Allocated memory was 205.5 MB in the beginning and 286.3 MB in the end (delta: 80.7 MB). Free memory was 134.3 MB in the beginning and 135.9 MB in the end (delta: -1.6 MB). Peak memory consumption was 79.1 MB. Max. memory is 7.1 GB. [2020-09-18 01:01:30,782 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 781.42 ms. Allocated memory was 141.0 MB in the beginning and 205.5 MB in the end (delta: 64.5 MB). Free memory was 102.6 MB in the beginning and 162.6 MB in the end (delta: -59.9 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 52.49 ms. Allocated memory is still 205.5 MB. Free memory was 162.6 MB in the beginning and 160.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.77 ms. Allocated memory is still 205.5 MB. Free memory was 160.5 MB in the beginning and 158.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 515.46 ms. Allocated memory is still 205.5 MB. Free memory was 158.5 MB in the beginning and 135.0 MB in the end (delta: 23.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4296.90 ms. Allocated memory was 205.5 MB in the beginning and 286.3 MB in the end (delta: 80.7 MB). Free memory was 134.3 MB in the beginning and 135.9 MB in the end (delta: -1.6 MB). Peak memory consumption was 79.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.4s, 91 ProgramPointsBefore, 39 ProgramPointsAfterwards, 80 TransitionsBefore, 27 TransitionsAfterwards, 1822 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 927 VarBasedMoverChecksPositive, 22 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2895 CheckedPairsTotal, 62 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, 79 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.0s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 285 SDtfs, 193 SDslu, 390 SDs, 0 SdLazy, 111 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 154 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s 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: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 128 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 133 NumberOfCodeBlocks, 133 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 123 ConstructedInterpolants, 0 QuantifiedInterpolants, 4741 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...