/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-05 22:50:29,050 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-05 22:50:29,052 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-05 22:50:29,076 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-05 22:50:29,076 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-05 22:50:29,077 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-05 22:50:29,078 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-05 22:50:29,080 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-05 22:50:29,081 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-05 22:50:29,082 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-05 22:50:29,083 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-05 22:50:29,084 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-05 22:50:29,084 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-05 22:50:29,085 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-05 22:50:29,086 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-05 22:50:29,087 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-05 22:50:29,088 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-05 22:50:29,089 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-05 22:50:29,090 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-05 22:50:29,092 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-05 22:50:29,093 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-05 22:50:29,094 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-05 22:50:29,095 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-05 22:50:29,096 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-05 22:50:29,099 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-05 22:50:29,101 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-05 22:50:29,102 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-05 22:50:29,103 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-05 22:50:29,103 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-05 22:50:29,104 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-05 22:50:29,105 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-05 22:50:29,105 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-05 22:50:29,106 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-05 22:50:29,106 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-05 22:50:29,107 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-05 22:50:29,107 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-05 22:50:29,108 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-05 22:50:29,131 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-05 22:50:29,131 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-05 22:50:29,132 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-05 22:50:29,133 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-05 22:50:29,133 INFO L138 SettingsManager]: * Use SBE=true [2020-10-05 22:50:29,133 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-05 22:50:29,133 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-05 22:50:29,133 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-05 22:50:29,134 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-05 22:50:29,134 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-05 22:50:29,134 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-05 22:50:29,134 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-05 22:50:29,134 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-05 22:50:29,134 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-05 22:50:29,135 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-05 22:50:29,135 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-05 22:50:29,135 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-05 22:50:29,135 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-05 22:50:29,135 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-05 22:50:29,136 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-05 22:50:29,136 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-05 22:50:29,136 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-05 22:50:29,136 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-05 22:50:29,136 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-05 22:50:29,137 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-05 22:50:29,137 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-05 22:50:29,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-05 22:50:29,137 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-05 22:50:29,137 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-05 22:50:29,138 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-05 22:50:29,432 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-05 22:50:29,452 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-05 22:50:29,456 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-05 22:50:29,457 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-05 22:50:29,460 INFO L275 PluginConnector]: CDTParser initialized [2020-10-05 22:50:29,461 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc.i [2020-10-05 22:50:29,536 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f46312f7d/2d8d800a013d49e19adf05996173b67e/FLAG98eb12ef5 [2020-10-05 22:50:30,116 INFO L306 CDTParser]: Found 1 translation units. [2020-10-05 22:50:30,116 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc.i [2020-10-05 22:50:30,130 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f46312f7d/2d8d800a013d49e19adf05996173b67e/FLAG98eb12ef5 [2020-10-05 22:50:30,397 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f46312f7d/2d8d800a013d49e19adf05996173b67e [2020-10-05 22:50:30,406 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-05 22:50:30,408 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-05 22:50:30,409 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-05 22:50:30,410 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-05 22:50:30,413 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-05 22:50:30,414 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 10:50:30" (1/1) ... [2020-10-05 22:50:30,420 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d4b4fce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:50:30, skipping insertion in model container [2020-10-05 22:50:30,421 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 10:50:30" (1/1) ... [2020-10-05 22:50:30,430 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-05 22:50:30,471 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-05 22:50:30,891 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 22:50:30,904 INFO L203 MainTranslator]: Completed pre-run [2020-10-05 22:50:30,952 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 22:50:31,026 INFO L208 MainTranslator]: Completed translation [2020-10-05 22:50:31,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:50:31 WrapperNode [2020-10-05 22:50:31,027 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-05 22:50:31,028 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-05 22:50:31,028 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-05 22:50:31,028 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-05 22:50:31,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:50:31" (1/1) ... [2020-10-05 22:50:31,055 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:50:31" (1/1) ... [2020-10-05 22:50:31,079 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-05 22:50:31,080 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-05 22:50:31,080 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-05 22:50:31,080 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-05 22:50:31,089 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:50:31" (1/1) ... [2020-10-05 22:50:31,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:50:31" (1/1) ... [2020-10-05 22:50:31,093 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:50:31" (1/1) ... [2020-10-05 22:50:31,093 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:50:31" (1/1) ... [2020-10-05 22:50:31,100 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:50:31" (1/1) ... [2020-10-05 22:50:31,103 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:50:31" (1/1) ... [2020-10-05 22:50:31,105 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:50:31" (1/1) ... [2020-10-05 22:50:31,109 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-05 22:50:31,109 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-05 22:50:31,110 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-05 22:50:31,110 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-05 22:50:31,111 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:50:31" (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 [2020-10-05 22:50:31,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-05 22:50:31,181 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-05 22:50:31,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-05 22:50:31,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-05 22:50:31,181 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-05 22:50:31,181 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-05 22:50:31,181 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-05 22:50:31,182 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-05 22:50:31,182 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-05 22:50:31,182 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-05 22:50:31,182 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-05 22:50:31,182 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-05 22:50:31,182 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-05 22:50:31,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-05 22:50:31,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-05 22:50:31,185 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-05 22:50:31,680 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-05 22:50:31,681 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-05 22:50:31,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:50:31 BoogieIcfgContainer [2020-10-05 22:50:31,683 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-05 22:50:31,685 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-05 22:50:31,685 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-05 22:50:31,688 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-05 22:50:31,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.10 10:50:30" (1/3) ... [2020-10-05 22:50:31,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@631f1ce2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 10:50:31, skipping insertion in model container [2020-10-05 22:50:31,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:50:31" (2/3) ... [2020-10-05 22:50:31,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@631f1ce2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 10:50:31, skipping insertion in model container [2020-10-05 22:50:31,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:50:31" (3/3) ... [2020-10-05 22:50:31,692 INFO L109 eAbstractionObserver]: Analyzing ICFG safe019_pso.oepc.i [2020-10-05 22:50:31,702 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-05 22:50:31,703 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-05 22:50:31,710 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-05 22:50:31,711 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-05 22:50:31,740 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:31,741 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:31,741 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:31,741 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:31,742 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:31,742 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:31,743 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:31,743 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:31,743 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:31,743 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:31,744 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:31,744 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:31,745 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:31,745 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:31,745 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:31,745 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:31,746 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:31,746 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:31,747 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:31,747 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:31,747 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:31,747 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:31,748 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:31,748 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:31,752 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:31,753 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:31,753 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:31,753 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:31,759 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:31,759 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:31,759 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:31,760 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:31,765 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:31,765 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:31,765 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:31,766 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:31,769 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:31,769 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:31,769 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:31,769 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:31,786 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-05 22:50:31,809 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-05 22:50:31,809 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-05 22:50:31,809 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-05 22:50:31,809 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-05 22:50:31,809 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-05 22:50:31,810 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-05 22:50:31,810 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-05 22:50:31,810 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-05 22:50:31,827 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 81 transitions, 182 flow [2020-10-05 22:50:31,829 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 92 places, 81 transitions, 182 flow [2020-10-05 22:50:31,879 INFO L129 PetriNetUnfolder]: 2/77 cut-off events. [2020-10-05 22:50:31,879 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-05 22:50:31,886 INFO L80 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 77 events. 2/77 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. 0/74 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-10-05 22:50:31,889 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 92 places, 81 transitions, 182 flow [2020-10-05 22:50:31,921 INFO L129 PetriNetUnfolder]: 2/77 cut-off events. [2020-10-05 22:50:31,921 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-05 22:50:31,922 INFO L80 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 77 events. 2/77 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. 0/74 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-10-05 22:50:31,925 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1822 [2020-10-05 22:50:31,926 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-10-05 22:50:33,723 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-10-05 22:50:33,966 INFO L206 etLargeBlockEncoding]: Checked pairs total: 3093 [2020-10-05 22:50:33,967 INFO L214 etLargeBlockEncoding]: Total number of compositions: 65 [2020-10-05 22:50:33,970 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 25 transitions, 70 flow [2020-10-05 22:50:34,019 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 706 states. [2020-10-05 22:50:34,022 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states. [2020-10-05 22:50:34,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-05 22:50:34,032 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:50:34,033 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:50:34,034 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:50:34,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:50:34,040 INFO L82 PathProgramCache]: Analyzing trace with hash -2005095105, now seen corresponding path program 1 times [2020-10-05 22:50:34,051 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:50:34,052 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462090945] [2020-10-05 22:50:34,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:50:34,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:50:34,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:50:34,316 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462090945] [2020-10-05 22:50:34,317 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:50:34,318 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-05 22:50:34,319 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493484292] [2020-10-05 22:50:34,324 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:50:34,324 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:50:34,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:50:34,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:50:34,341 INFO L87 Difference]: Start difference. First operand 706 states. Second operand 3 states. [2020-10-05 22:50:34,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:50:34,404 INFO L93 Difference]: Finished difference Result 670 states and 2295 transitions. [2020-10-05 22:50:34,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:50:34,406 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-05 22:50:34,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:50:34,429 INFO L225 Difference]: With dead ends: 670 [2020-10-05 22:50:34,429 INFO L226 Difference]: Without dead ends: 526 [2020-10-05 22:50:34,430 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:50:34,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-10-05 22:50:34,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2020-10-05 22:50:34,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2020-10-05 22:50:34,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 1743 transitions. [2020-10-05 22:50:34,534 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 1743 transitions. Word has length 10 [2020-10-05 22:50:34,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:50:34,535 INFO L479 AbstractCegarLoop]: Abstraction has 526 states and 1743 transitions. [2020-10-05 22:50:34,536 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:50:34,536 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 1743 transitions. [2020-10-05 22:50:34,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-05 22:50:34,541 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:50:34,542 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:50:34,542 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-05 22:50:34,542 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:50:34,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:50:34,543 INFO L82 PathProgramCache]: Analyzing trace with hash -2027599793, now seen corresponding path program 1 times [2020-10-05 22:50:34,545 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:50:34,546 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946066820] [2020-10-05 22:50:34,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:50:34,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:50:34,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:50:34,669 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946066820] [2020-10-05 22:50:34,669 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:50:34,669 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:50:34,669 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52633668] [2020-10-05 22:50:34,671 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:50:34,671 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:50:34,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:50:34,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:50:34,672 INFO L87 Difference]: Start difference. First operand 526 states and 1743 transitions. Second operand 4 states. [2020-10-05 22:50:34,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:50:34,704 INFO L93 Difference]: Finished difference Result 682 states and 2180 transitions. [2020-10-05 22:50:34,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-05 22:50:34,704 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-05 22:50:34,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:50:34,709 INFO L225 Difference]: With dead ends: 682 [2020-10-05 22:50:34,709 INFO L226 Difference]: Without dead ends: 394 [2020-10-05 22:50:34,710 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 [2020-10-05 22:50:34,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2020-10-05 22:50:34,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2020-10-05 22:50:34,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-10-05 22:50:34,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1224 transitions. [2020-10-05 22:50:34,730 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 1224 transitions. Word has length 11 [2020-10-05 22:50:34,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:50:34,730 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 1224 transitions. [2020-10-05 22:50:34,731 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:50:34,731 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 1224 transitions. [2020-10-05 22:50:34,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-05 22:50:34,733 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:50:34,733 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:50:34,733 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-05 22:50:34,734 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:50:34,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:50:34,734 INFO L82 PathProgramCache]: Analyzing trace with hash -1004375926, now seen corresponding path program 1 times [2020-10-05 22:50:34,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:50:34,735 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012944957] [2020-10-05 22:50:34,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:50:34,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:50:34,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:50:34,788 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012944957] [2020-10-05 22:50:34,789 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:50:34,789 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-05 22:50:34,789 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315332692] [2020-10-05 22:50:34,790 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:50:34,790 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:50:34,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:50:34,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:50:34,791 INFO L87 Difference]: Start difference. First operand 394 states and 1224 transitions. Second operand 3 states. [2020-10-05 22:50:34,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:50:34,803 INFO L93 Difference]: Finished difference Result 386 states and 1190 transitions. [2020-10-05 22:50:34,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:50:34,804 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-05 22:50:34,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:50:34,808 INFO L225 Difference]: With dead ends: 386 [2020-10-05 22:50:34,808 INFO L226 Difference]: Without dead ends: 386 [2020-10-05 22:50:34,809 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:50:34,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2020-10-05 22:50:34,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 386. [2020-10-05 22:50:34,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 386 states. [2020-10-05 22:50:34,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 1190 transitions. [2020-10-05 22:50:34,824 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 1190 transitions. Word has length 12 [2020-10-05 22:50:34,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:50:34,824 INFO L479 AbstractCegarLoop]: Abstraction has 386 states and 1190 transitions. [2020-10-05 22:50:34,824 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:50:34,824 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 1190 transitions. [2020-10-05 22:50:34,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-05 22:50:34,827 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:50:34,827 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:50:34,827 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-05 22:50:34,827 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:50:34,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:50:34,828 INFO L82 PathProgramCache]: Analyzing trace with hash -1071238165, now seen corresponding path program 1 times [2020-10-05 22:50:34,828 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:50:34,828 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736382880] [2020-10-05 22:50:34,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:50:34,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:50:34,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:50:34,896 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736382880] [2020-10-05 22:50:34,896 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:50:34,899 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:50:34,900 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130072338] [2020-10-05 22:50:34,900 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:50:34,900 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:50:34,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:50:34,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:50:34,901 INFO L87 Difference]: Start difference. First operand 386 states and 1190 transitions. Second operand 3 states. [2020-10-05 22:50:34,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:50:34,928 INFO L93 Difference]: Finished difference Result 466 states and 1378 transitions. [2020-10-05 22:50:34,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:50:34,930 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-05 22:50:34,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:50:34,934 INFO L225 Difference]: With dead ends: 466 [2020-10-05 22:50:34,934 INFO L226 Difference]: Without dead ends: 402 [2020-10-05 22:50:34,934 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:50:34,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2020-10-05 22:50:34,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 370. [2020-10-05 22:50:34,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2020-10-05 22:50:34,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 1098 transitions. [2020-10-05 22:50:34,947 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 1098 transitions. Word has length 13 [2020-10-05 22:50:34,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:50:34,948 INFO L479 AbstractCegarLoop]: Abstraction has 370 states and 1098 transitions. [2020-10-05 22:50:34,948 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:50:34,948 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 1098 transitions. [2020-10-05 22:50:34,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-05 22:50:34,949 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:50:34,950 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:50:34,950 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-05 22:50:34,950 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:50:34,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:50:34,951 INFO L82 PathProgramCache]: Analyzing trace with hash -1070883463, now seen corresponding path program 1 times [2020-10-05 22:50:34,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:50:34,951 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280894349] [2020-10-05 22:50:34,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:50:34,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:50:34,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:50:34,984 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280894349] [2020-10-05 22:50:34,984 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:50:34,984 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-05 22:50:34,985 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191533258] [2020-10-05 22:50:34,985 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:50:34,985 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:50:34,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:50:34,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:50:34,986 INFO L87 Difference]: Start difference. First operand 370 states and 1098 transitions. Second operand 3 states. [2020-10-05 22:50:34,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:50:34,994 INFO L93 Difference]: Finished difference Result 358 states and 1054 transitions. [2020-10-05 22:50:34,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:50:34,994 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-05 22:50:34,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:50:34,997 INFO L225 Difference]: With dead ends: 358 [2020-10-05 22:50:34,997 INFO L226 Difference]: Without dead ends: 358 [2020-10-05 22:50:34,998 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:50:35,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2020-10-05 22:50:35,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 358. [2020-10-05 22:50:35,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2020-10-05 22:50:35,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 1054 transitions. [2020-10-05 22:50:35,009 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 1054 transitions. Word has length 13 [2020-10-05 22:50:35,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:50:35,010 INFO L479 AbstractCegarLoop]: Abstraction has 358 states and 1054 transitions. [2020-10-05 22:50:35,010 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:50:35,010 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 1054 transitions. [2020-10-05 22:50:35,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-05 22:50:35,011 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:50:35,012 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:50:35,012 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-05 22:50:35,012 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:50:35,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:50:35,012 INFO L82 PathProgramCache]: Analyzing trace with hash 1189218785, now seen corresponding path program 1 times [2020-10-05 22:50:35,013 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:50:35,013 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863953713] [2020-10-05 22:50:35,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:50:35,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:50:35,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:50:35,079 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863953713] [2020-10-05 22:50:35,079 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:50:35,079 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:50:35,079 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381054050] [2020-10-05 22:50:35,080 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:50:35,080 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:50:35,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:50:35,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:50:35,081 INFO L87 Difference]: Start difference. First operand 358 states and 1054 transitions. Second operand 4 states. [2020-10-05 22:50:35,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:50:35,108 INFO L93 Difference]: Finished difference Result 514 states and 1482 transitions. [2020-10-05 22:50:35,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-05 22:50:35,108 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-05 22:50:35,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:50:35,111 INFO L225 Difference]: With dead ends: 514 [2020-10-05 22:50:35,111 INFO L226 Difference]: Without dead ends: 274 [2020-10-05 22:50:35,112 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 [2020-10-05 22:50:35,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-10-05 22:50:35,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2020-10-05 22:50:35,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2020-10-05 22:50:35,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 775 transitions. [2020-10-05 22:50:35,121 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 775 transitions. Word has length 14 [2020-10-05 22:50:35,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:50:35,122 INFO L479 AbstractCegarLoop]: Abstraction has 274 states and 775 transitions. [2020-10-05 22:50:35,122 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:50:35,122 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 775 transitions. [2020-10-05 22:50:35,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-05 22:50:35,123 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:50:35,123 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:50:35,123 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-05 22:50:35,123 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:50:35,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:50:35,124 INFO L82 PathProgramCache]: Analyzing trace with hash 1162350155, now seen corresponding path program 2 times [2020-10-05 22:50:35,124 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:50:35,124 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192057318] [2020-10-05 22:50:35,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:50:35,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:50:35,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:50:35,197 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192057318] [2020-10-05 22:50:35,197 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:50:35,197 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:50:35,197 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281834412] [2020-10-05 22:50:35,198 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:50:35,198 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:50:35,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:50:35,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:50:35,199 INFO L87 Difference]: Start difference. First operand 274 states and 775 transitions. Second operand 4 states. [2020-10-05 22:50:35,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:50:35,234 INFO L93 Difference]: Finished difference Result 345 states and 911 transitions. [2020-10-05 22:50:35,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 22:50:35,234 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-05 22:50:35,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:50:35,236 INFO L225 Difference]: With dead ends: 345 [2020-10-05 22:50:35,236 INFO L226 Difference]: Without dead ends: 252 [2020-10-05 22:50:35,237 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 [2020-10-05 22:50:35,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2020-10-05 22:50:35,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2020-10-05 22:50:35,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2020-10-05 22:50:35,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 675 transitions. [2020-10-05 22:50:35,244 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 675 transitions. Word has length 14 [2020-10-05 22:50:35,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:50:35,245 INFO L479 AbstractCegarLoop]: Abstraction has 252 states and 675 transitions. [2020-10-05 22:50:35,245 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:50:35,245 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 675 transitions. [2020-10-05 22:50:35,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-05 22:50:35,246 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:50:35,246 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:50:35,246 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-05 22:50:35,246 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:50:35,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:50:35,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1647463604, now seen corresponding path program 1 times [2020-10-05 22:50:35,247 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:50:35,247 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806881989] [2020-10-05 22:50:35,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:50:35,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:50:35,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:50:35,308 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806881989] [2020-10-05 22:50:35,308 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:50:35,308 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:50:35,309 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103233931] [2020-10-05 22:50:35,309 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-05 22:50:35,309 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:50:35,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-05 22:50:35,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:50:35,310 INFO L87 Difference]: Start difference. First operand 252 states and 675 transitions. Second operand 5 states. [2020-10-05 22:50:35,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:50:35,396 INFO L93 Difference]: Finished difference Result 278 states and 685 transitions. [2020-10-05 22:50:35,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-05 22:50:35,397 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-05 22:50:35,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:50:35,399 INFO L225 Difference]: With dead ends: 278 [2020-10-05 22:50:35,399 INFO L226 Difference]: Without dead ends: 203 [2020-10-05 22:50:35,399 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-05 22:50:35,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2020-10-05 22:50:35,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2020-10-05 22:50:35,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-10-05 22:50:35,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 492 transitions. [2020-10-05 22:50:35,406 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 492 transitions. Word has length 15 [2020-10-05 22:50:35,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:50:35,406 INFO L479 AbstractCegarLoop]: Abstraction has 203 states and 492 transitions. [2020-10-05 22:50:35,406 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-05 22:50:35,407 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 492 transitions. [2020-10-05 22:50:35,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-05 22:50:35,408 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:50:35,408 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:50:35,408 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-05 22:50:35,408 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:50:35,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:50:35,409 INFO L82 PathProgramCache]: Analyzing trace with hash -469082430, now seen corresponding path program 1 times [2020-10-05 22:50:35,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:50:35,410 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44841481] [2020-10-05 22:50:35,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:50:35,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:50:35,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:50:35,529 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44841481] [2020-10-05 22:50:35,530 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:50:35,530 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-05 22:50:35,530 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577675941] [2020-10-05 22:50:35,531 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-05 22:50:35,531 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:50:35,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-05 22:50:35,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-05 22:50:35,534 INFO L87 Difference]: Start difference. First operand 203 states and 492 transitions. Second operand 6 states. [2020-10-05 22:50:35,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:50:35,627 INFO L93 Difference]: Finished difference Result 200 states and 461 transitions. [2020-10-05 22:50:35,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-05 22:50:35,628 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-10-05 22:50:35,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:50:35,630 INFO L225 Difference]: With dead ends: 200 [2020-10-05 22:50:35,630 INFO L226 Difference]: Without dead ends: 162 [2020-10-05 22:50:35,630 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-05 22:50:35,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-10-05 22:50:35,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2020-10-05 22:50:35,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-10-05 22:50:35,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 375 transitions. [2020-10-05 22:50:35,646 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 375 transitions. Word has length 16 [2020-10-05 22:50:35,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:50:35,647 INFO L479 AbstractCegarLoop]: Abstraction has 162 states and 375 transitions. [2020-10-05 22:50:35,647 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-05 22:50:35,647 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 375 transitions. [2020-10-05 22:50:35,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-05 22:50:35,648 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:50:35,648 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:50:35,648 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-05 22:50:35,648 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:50:35,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:50:35,649 INFO L82 PathProgramCache]: Analyzing trace with hash 1305224855, now seen corresponding path program 1 times [2020-10-05 22:50:35,649 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:50:35,649 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375305784] [2020-10-05 22:50:35,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:50:35,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:50:35,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:50:35,702 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375305784] [2020-10-05 22:50:35,702 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:50:35,702 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:50:35,703 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664221466] [2020-10-05 22:50:35,703 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:50:35,703 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:50:35,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:50:35,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:50:35,704 INFO L87 Difference]: Start difference. First operand 162 states and 375 transitions. Second operand 4 states. [2020-10-05 22:50:35,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:50:35,727 INFO L93 Difference]: Finished difference Result 194 states and 439 transitions. [2020-10-05 22:50:35,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 22:50:35,728 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-05 22:50:35,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:50:35,729 INFO L225 Difference]: With dead ends: 194 [2020-10-05 22:50:35,729 INFO L226 Difference]: Without dead ends: 127 [2020-10-05 22:50:35,730 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 [2020-10-05 22:50:35,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-10-05 22:50:35,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 125. [2020-10-05 22:50:35,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-10-05 22:50:35,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 265 transitions. [2020-10-05 22:50:35,734 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 265 transitions. Word has length 18 [2020-10-05 22:50:35,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:50:35,736 INFO L479 AbstractCegarLoop]: Abstraction has 125 states and 265 transitions. [2020-10-05 22:50:35,736 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:50:35,737 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 265 transitions. [2020-10-05 22:50:35,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-05 22:50:35,737 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:50:35,737 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:50:35,738 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-05 22:50:35,738 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:50:35,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:50:35,738 INFO L82 PathProgramCache]: Analyzing trace with hash 483879941, now seen corresponding path program 2 times [2020-10-05 22:50:35,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:50:35,739 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883649701] [2020-10-05 22:50:35,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:50:35,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:50:35,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:50:35,835 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883649701] [2020-10-05 22:50:35,835 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:50:35,836 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-05 22:50:35,836 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384566606] [2020-10-05 22:50:35,836 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-05 22:50:35,837 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:50:35,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-05 22:50:35,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-05 22:50:35,838 INFO L87 Difference]: Start difference. First operand 125 states and 265 transitions. Second operand 7 states. [2020-10-05 22:50:35,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:50:35,907 INFO L93 Difference]: Finished difference Result 120 states and 253 transitions. [2020-10-05 22:50:35,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-05 22:50:35,907 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-10-05 22:50:35,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:50:35,908 INFO L225 Difference]: With dead ends: 120 [2020-10-05 22:50:35,908 INFO L226 Difference]: Without dead ends: 71 [2020-10-05 22:50:35,909 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-05 22:50:35,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-10-05 22:50:35,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-10-05 22:50:35,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-10-05 22:50:35,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 143 transitions. [2020-10-05 22:50:35,912 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 143 transitions. Word has length 18 [2020-10-05 22:50:35,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:50:35,912 INFO L479 AbstractCegarLoop]: Abstraction has 71 states and 143 transitions. [2020-10-05 22:50:35,912 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-05 22:50:35,912 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 143 transitions. [2020-10-05 22:50:35,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-05 22:50:35,914 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:50:35,914 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] [2020-10-05 22:50:35,914 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-05 22:50:35,914 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:50:35,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:50:35,915 INFO L82 PathProgramCache]: Analyzing trace with hash 1087350585, now seen corresponding path program 1 times [2020-10-05 22:50:35,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:50:35,916 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801146281] [2020-10-05 22:50:35,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:50:35,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:50:35,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:50:35,947 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801146281] [2020-10-05 22:50:35,947 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:50:35,947 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:50:35,947 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943587690] [2020-10-05 22:50:35,948 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:50:35,948 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:50:35,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:50:35,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:50:35,949 INFO L87 Difference]: Start difference. First operand 71 states and 143 transitions. Second operand 4 states. [2020-10-05 22:50:35,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:50:35,960 INFO L93 Difference]: Finished difference Result 70 states and 142 transitions. [2020-10-05 22:50:35,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-05 22:50:35,961 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-10-05 22:50:35,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:50:35,961 INFO L225 Difference]: With dead ends: 70 [2020-10-05 22:50:35,961 INFO L226 Difference]: Without dead ends: 0 [2020-10-05 22:50:35,962 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 [2020-10-05 22:50:35,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-05 22:50:35,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-05 22:50:35,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-05 22:50:35,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-05 22:50:35,963 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-10-05 22:50:35,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:50:35,963 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-05 22:50:35,963 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:50:35,963 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-05 22:50:35,963 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-05 22:50:35,964 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-05 22:50:35,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.10 10:50:35 BasicIcfg [2020-10-05 22:50:35,968 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-05 22:50:35,970 INFO L168 Benchmark]: Toolchain (without parser) took 5561.80 ms. Allocated memory was 138.9 MB in the beginning and 291.0 MB in the end (delta: 152.0 MB). Free memory was 100.6 MB in the beginning and 175.4 MB in the end (delta: -74.8 MB). Peak memory consumption was 77.3 MB. Max. memory is 7.1 GB. [2020-10-05 22:50:35,971 INFO L168 Benchmark]: CDTParser took 1.41 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-05 22:50:35,972 INFO L168 Benchmark]: CACSL2BoogieTranslator took 618.30 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 100.4 MB in the beginning and 159.1 MB in the end (delta: -58.8 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. [2020-10-05 22:50:35,972 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.12 ms. Allocated memory is still 202.4 MB. Free memory was 159.1 MB in the beginning and 156.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-10-05 22:50:35,973 INFO L168 Benchmark]: Boogie Preprocessor took 29.44 ms. Allocated memory is still 202.4 MB. Free memory was 156.5 MB in the beginning and 155.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-05 22:50:35,974 INFO L168 Benchmark]: RCFGBuilder took 574.06 ms. Allocated memory is still 202.4 MB. Free memory was 155.2 MB in the beginning and 131.1 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2020-10-05 22:50:35,975 INFO L168 Benchmark]: TraceAbstraction took 4283.21 ms. Allocated memory was 202.4 MB in the beginning and 291.0 MB in the end (delta: 88.6 MB). Free memory was 130.4 MB in the beginning and 175.4 MB in the end (delta: -44.9 MB). Peak memory consumption was 43.7 MB. Max. memory is 7.1 GB. [2020-10-05 22:50:35,978 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.41 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 618.30 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 100.4 MB in the beginning and 159.1 MB in the end (delta: -58.8 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.12 ms. Allocated memory is still 202.4 MB. Free memory was 159.1 MB in the beginning and 156.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.44 ms. Allocated memory is still 202.4 MB. Free memory was 156.5 MB in the beginning and 155.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 574.06 ms. Allocated memory is still 202.4 MB. Free memory was 155.2 MB in the beginning and 131.1 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4283.21 ms. Allocated memory was 202.4 MB in the beginning and 291.0 MB in the end (delta: 88.6 MB). Free memory was 130.4 MB in the beginning and 175.4 MB in the end (delta: -44.9 MB). Peak memory consumption was 43.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.1s, 92 ProgramPointsBefore, 38 ProgramPointsAfterwards, 81 TransitionsBefore, 25 TransitionsAfterwards, 1822 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 951 VarBasedMoverChecksPositive, 45 VarBasedMoverChecksNegative, 25 SemBasedMoverChecksPositive, 44 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 0 MoverChecksTotal, 3093 CheckedPairsTotal, 65 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, 80 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.1s, OverallIterations: 12, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: 258 SDtfs, 237 SDslu, 349 SDs, 0 SdLazy, 196 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=706occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 34 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 174 NumberOfCodeBlocks, 174 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 162 ConstructedInterpolants, 0 QuantifiedInterpolants, 6430 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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...