/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/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe-MCR.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe021_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 18:30:45,950 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 18:30:45,952 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 18:30:45,964 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 18:30:45,964 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 18:30:45,965 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 18:30:45,967 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 18:30:45,968 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 18:30:45,970 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 18:30:45,971 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 18:30:45,972 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 18:30:45,973 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 18:30:45,973 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 18:30:45,974 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 18:30:45,975 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 18:30:45,976 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 18:30:45,977 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 18:30:45,978 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 18:30:45,980 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 18:30:45,982 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 18:30:45,983 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 18:30:45,984 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 18:30:45,985 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 18:30:45,986 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 18:30:45,988 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 18:30:45,991 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 18:30:45,992 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 18:30:45,992 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 18:30:45,993 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 18:30:45,994 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 18:30:45,994 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 18:30:45,995 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 18:30:45,995 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 18:30:45,995 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 18:30:45,996 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 18:30:45,997 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 18:30:45,997 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe-MCR.epf [2019-12-27 18:30:46,012 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 18:30:46,012 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 18:30:46,013 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 18:30:46,013 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 18:30:46,013 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 18:30:46,014 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 18:30:46,014 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 18:30:46,014 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 18:30:46,014 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 18:30:46,014 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 18:30:46,015 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 18:30:46,015 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 18:30:46,015 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 18:30:46,015 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 18:30:46,015 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 18:30:46,016 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 18:30:46,016 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 18:30:46,016 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 18:30:46,016 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 18:30:46,016 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 18:30:46,017 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 18:30:46,017 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 18:30:46,017 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 18:30:46,017 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 18:30:46,017 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 18:30:46,018 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 18:30:46,018 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 18:30:46,018 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-27 18:30:46,018 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 18:30:46,018 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-27 18:30:46,019 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 18:30:46,326 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 18:30:46,343 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 18:30:46,346 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 18:30:46,348 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 18:30:46,348 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 18:30:46,350 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe021_tso.oepc.i [2019-12-27 18:30:46,416 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86dc23c44/e34c99f6887940a5820755f53aaa83a4/FLAGe20e022d4 [2019-12-27 18:30:46,988 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 18:30:46,988 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe021_tso.oepc.i [2019-12-27 18:30:47,003 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86dc23c44/e34c99f6887940a5820755f53aaa83a4/FLAGe20e022d4 [2019-12-27 18:30:47,235 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86dc23c44/e34c99f6887940a5820755f53aaa83a4 [2019-12-27 18:30:47,247 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 18:30:47,249 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 18:30:47,251 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 18:30:47,251 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 18:30:47,255 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 18:30:47,256 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 06:30:47" (1/1) ... [2019-12-27 18:30:47,260 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6294424c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:30:47, skipping insertion in model container [2019-12-27 18:30:47,260 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 06:30:47" (1/1) ... [2019-12-27 18:30:47,270 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 18:30:47,332 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 18:30:47,791 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 18:30:47,802 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 18:30:47,846 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 18:30:47,921 INFO L208 MainTranslator]: Completed translation [2019-12-27 18:30:47,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:30:47 WrapperNode [2019-12-27 18:30:47,922 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 18:30:47,923 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 18:30:47,923 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 18:30:47,923 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 18:30:47,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:30:47" (1/1) ... [2019-12-27 18:30:47,949 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:30:47" (1/1) ... [2019-12-27 18:30:47,972 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 18:30:47,972 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 18:30:47,972 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 18:30:47,973 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 18:30:47,981 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:30:47" (1/1) ... [2019-12-27 18:30:47,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:30:47" (1/1) ... [2019-12-27 18:30:47,985 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:30:47" (1/1) ... [2019-12-27 18:30:47,985 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:30:47" (1/1) ... [2019-12-27 18:30:47,992 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:30:47" (1/1) ... [2019-12-27 18:30:47,994 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:30:47" (1/1) ... [2019-12-27 18:30:47,996 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:30:47" (1/1) ... [2019-12-27 18:30:47,999 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 18:30:48,000 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 18:30:48,000 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 18:30:48,000 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 18:30:48,001 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:30:47" (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 [2019-12-27 18:30:48,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 18:30:48,069 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 18:30:48,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 18:30:48,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 18:30:48,070 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 18:30:48,070 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 18:30:48,070 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 18:30:48,070 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 18:30:48,070 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 18:30:48,070 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 18:30:48,071 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 18:30:48,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 18:30:48,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 18:30:48,075 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 18:30:48,432 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 18:30:48,433 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 18:30:48,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 06:30:48 BoogieIcfgContainer [2019-12-27 18:30:48,434 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 18:30:48,435 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 18:30:48,436 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 18:30:48,439 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 18:30:48,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 06:30:47" (1/3) ... [2019-12-27 18:30:48,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@223778e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 06:30:48, skipping insertion in model container [2019-12-27 18:30:48,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:30:47" (2/3) ... [2019-12-27 18:30:48,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@223778e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 06:30:48, skipping insertion in model container [2019-12-27 18:30:48,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 06:30:48" (3/3) ... [2019-12-27 18:30:48,442 INFO L109 eAbstractionObserver]: Analyzing ICFG safe021_tso.oepc.i [2019-12-27 18:30:48,451 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 18:30:48,452 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 18:30:48,459 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 18:30:48,460 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 18:30:48,487 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:48,488 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:48,488 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:48,488 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:48,489 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:48,489 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:48,490 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:48,490 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:48,490 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:48,490 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:48,491 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:48,491 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:48,491 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:48,492 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:48,492 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:48,492 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:48,492 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:48,493 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:48,497 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:48,497 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:48,497 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:48,498 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:48,503 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:48,504 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:48,505 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:48,505 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:48,508 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:48,508 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:48,509 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:48,509 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:48,524 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 18:30:48,539 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 18:30:48,539 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 18:30:48,540 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 18:30:48,540 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 18:30:48,540 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 18:30:48,540 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 18:30:48,540 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 18:30:48,541 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 18:30:48,554 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-27 18:30:48,556 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 18:30:48,602 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 18:30:48,602 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 18:30:48,610 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 18:30:48,613 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 18:30:48,634 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 18:30:48,634 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 18:30:48,635 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 18:30:48,637 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 18:30:48,638 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 18:30:50,014 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2019-12-27 18:30:50,199 INFO L206 etLargeBlockEncoding]: Checked pairs total: 442 [2019-12-27 18:30:50,199 INFO L214 etLargeBlockEncoding]: Total number of compositions: 45 [2019-12-27 18:30:50,203 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 17 transitions [2019-12-27 18:30:50,214 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 54 states. [2019-12-27 18:30:50,216 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2019-12-27 18:30:50,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 18:30:50,223 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:30:50,224 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:30:50,225 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:30:50,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:30:50,231 INFO L82 PathProgramCache]: Analyzing trace with hash 1632263201, now seen corresponding path program 1 times [2019-12-27 18:30:50,242 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:30:50,243 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120272042] [2019-12-27 18:30:50,243 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:30:50,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:30:50,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 18:30:50,469 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120272042] [2019-12-27 18:30:50,470 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:30:50,471 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 18:30:50,471 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1298964907] [2019-12-27 18:30:50,472 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:30:50,477 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:30:50,491 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 9 states and 8 transitions. [2019-12-27 18:30:50,492 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:30:50,496 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:30:50,497 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 18:30:50,497 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:30:50,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 18:30:50,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 18:30:50,514 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 3 states. [2019-12-27 18:30:50,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:30:50,566 INFO L93 Difference]: Finished difference Result 52 states and 109 transitions. [2019-12-27 18:30:50,567 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 18:30:50,568 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 18:30:50,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:30:50,596 INFO L225 Difference]: With dead ends: 52 [2019-12-27 18:30:50,596 INFO L226 Difference]: Without dead ends: 36 [2019-12-27 18:30:50,599 INFO L631 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 [2019-12-27 18:30:50,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-27 18:30:50,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-27 18:30:50,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-27 18:30:50,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 69 transitions. [2019-12-27 18:30:50,653 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 69 transitions. Word has length 8 [2019-12-27 18:30:50,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:30:50,654 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 69 transitions. [2019-12-27 18:30:50,655 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 18:30:50,655 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2019-12-27 18:30:50,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 18:30:50,657 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:30:50,658 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:30:50,661 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:30:50,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:30:50,662 INFO L82 PathProgramCache]: Analyzing trace with hash -161820659, now seen corresponding path program 1 times [2019-12-27 18:30:50,662 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:30:50,662 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013921505] [2019-12-27 18:30:50,662 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:30:50,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:30:50,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 18:30:50,727 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013921505] [2019-12-27 18:30:50,727 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:30:50,728 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 18:30:50,728 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [387533869] [2019-12-27 18:30:50,728 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:30:50,729 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:30:50,735 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 14 states and 17 transitions. [2019-12-27 18:30:50,735 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:30:50,778 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 1 times. [2019-12-27 18:30:50,779 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 18:30:50,780 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:30:50,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 18:30:50,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-27 18:30:50,780 INFO L87 Difference]: Start difference. First operand 36 states and 69 transitions. Second operand 4 states. [2019-12-27 18:30:50,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:30:50,799 INFO L93 Difference]: Finished difference Result 42 states and 71 transitions. [2019-12-27 18:30:50,800 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 18:30:50,801 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-27 18:30:50,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:30:50,802 INFO L225 Difference]: With dead ends: 42 [2019-12-27 18:30:50,802 INFO L226 Difference]: Without dead ends: 36 [2019-12-27 18:30:50,803 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-27 18:30:50,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-27 18:30:50,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2019-12-27 18:30:50,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 18:30:50,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 58 transitions. [2019-12-27 18:30:50,809 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 58 transitions. Word has length 9 [2019-12-27 18:30:50,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:30:50,809 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 58 transitions. [2019-12-27 18:30:50,810 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 18:30:50,810 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 58 transitions. [2019-12-27 18:30:50,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 18:30:50,810 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:30:50,811 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:30:50,811 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:30:50,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:30:50,811 INFO L82 PathProgramCache]: Analyzing trace with hash -939448808, now seen corresponding path program 1 times [2019-12-27 18:30:50,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:30:50,812 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786657606] [2019-12-27 18:30:50,812 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:30:50,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:30:50,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 18:30:50,860 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786657606] [2019-12-27 18:30:50,860 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:30:50,860 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 18:30:50,861 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [763394432] [2019-12-27 18:30:50,861 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:30:50,862 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:30:50,863 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 10 states and 9 transitions. [2019-12-27 18:30:50,864 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:30:50,864 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:30:50,864 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 18:30:50,864 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:30:50,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 18:30:50,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 18:30:50,865 INFO L87 Difference]: Start difference. First operand 34 states and 58 transitions. Second operand 3 states. [2019-12-27 18:30:50,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:30:50,870 INFO L93 Difference]: Finished difference Result 32 states and 53 transitions. [2019-12-27 18:30:50,870 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 18:30:50,871 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-27 18:30:50,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:30:50,871 INFO L225 Difference]: With dead ends: 32 [2019-12-27 18:30:50,872 INFO L226 Difference]: Without dead ends: 32 [2019-12-27 18:30:50,872 INFO L631 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 [2019-12-27 18:30:50,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-12-27 18:30:50,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-12-27 18:30:50,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-12-27 18:30:50,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 53 transitions. [2019-12-27 18:30:50,877 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 53 transitions. Word has length 9 [2019-12-27 18:30:50,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:30:50,877 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 53 transitions. [2019-12-27 18:30:50,877 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 18:30:50,878 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 53 transitions. [2019-12-27 18:30:50,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 18:30:50,878 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:30:50,878 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:30:50,879 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:30:50,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:30:50,879 INFO L82 PathProgramCache]: Analyzing trace with hash 943627699, now seen corresponding path program 1 times [2019-12-27 18:30:50,879 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:30:50,880 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344385418] [2019-12-27 18:30:50,880 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:30:50,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:30:50,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 18:30:50,956 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344385418] [2019-12-27 18:30:50,956 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:30:50,956 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 18:30:50,956 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1671059630] [2019-12-27 18:30:50,956 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:30:50,958 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:30:50,959 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 11 states and 10 transitions. [2019-12-27 18:30:50,960 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:30:50,960 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:30:50,960 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 18:30:50,960 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:30:50,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 18:30:50,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 18:30:50,961 INFO L87 Difference]: Start difference. First operand 32 states and 53 transitions. Second operand 4 states. [2019-12-27 18:30:50,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:30:50,979 INFO L93 Difference]: Finished difference Result 36 states and 55 transitions. [2019-12-27 18:30:50,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 18:30:50,979 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-27 18:30:50,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:30:50,980 INFO L225 Difference]: With dead ends: 36 [2019-12-27 18:30:50,980 INFO L226 Difference]: Without dead ends: 28 [2019-12-27 18:30:50,981 INFO L631 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 [2019-12-27 18:30:50,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-27 18:30:50,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-27 18:30:50,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-27 18:30:50,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 41 transitions. [2019-12-27 18:30:50,985 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 41 transitions. Word has length 10 [2019-12-27 18:30:50,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:30:50,985 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 41 transitions. [2019-12-27 18:30:50,985 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 18:30:50,986 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 41 transitions. [2019-12-27 18:30:50,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 18:30:50,986 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:30:50,986 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:30:50,987 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:30:50,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:30:50,987 INFO L82 PathProgramCache]: Analyzing trace with hash 941857909, now seen corresponding path program 2 times [2019-12-27 18:30:50,987 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:30:50,988 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836932796] [2019-12-27 18:30:50,988 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:30:51,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:30:51,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 18:30:51,158 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836932796] [2019-12-27 18:30:51,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:30:51,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 18:30:51,159 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [135516320] [2019-12-27 18:30:51,159 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:30:51,160 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:30:51,162 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 11 states and 10 transitions. [2019-12-27 18:30:51,162 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:30:51,162 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:30:51,162 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 18:30:51,163 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:30:51,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 18:30:51,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 18:30:51,164 INFO L87 Difference]: Start difference. First operand 28 states and 41 transitions. Second operand 5 states. [2019-12-27 18:30:51,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:30:51,241 INFO L93 Difference]: Finished difference Result 31 states and 42 transitions. [2019-12-27 18:30:51,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 18:30:51,241 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-12-27 18:30:51,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:30:51,242 INFO L225 Difference]: With dead ends: 31 [2019-12-27 18:30:51,242 INFO L226 Difference]: Without dead ends: 25 [2019-12-27 18:30:51,243 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-27 18:30:51,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-12-27 18:30:51,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-12-27 18:30:51,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-12-27 18:30:51,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 34 transitions. [2019-12-27 18:30:51,251 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 34 transitions. Word has length 10 [2019-12-27 18:30:51,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:30:51,251 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 34 transitions. [2019-12-27 18:30:51,252 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 18:30:51,252 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 34 transitions. [2019-12-27 18:30:51,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 18:30:51,252 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:30:51,252 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:30:51,257 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:30:51,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:30:51,258 INFO L82 PathProgramCache]: Analyzing trace with hash 943327309, now seen corresponding path program 3 times [2019-12-27 18:30:51,258 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:30:51,259 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94578602] [2019-12-27 18:30:51,259 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:30:51,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:30:51,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 18:30:51,382 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94578602] [2019-12-27 18:30:51,382 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:30:51,382 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 18:30:51,383 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [851048797] [2019-12-27 18:30:51,383 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:30:51,385 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:30:51,386 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 13 states and 14 transitions. [2019-12-27 18:30:51,387 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:30:51,412 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 2 times. [2019-12-27 18:30:51,412 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 18:30:51,412 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:30:51,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 18:30:51,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2019-12-27 18:30:51,413 INFO L87 Difference]: Start difference. First operand 25 states and 34 transitions. Second operand 7 states. [2019-12-27 18:30:51,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:30:51,496 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2019-12-27 18:30:51,497 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 18:30:51,498 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2019-12-27 18:30:51,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:30:51,498 INFO L225 Difference]: With dead ends: 25 [2019-12-27 18:30:51,498 INFO L226 Difference]: Without dead ends: 18 [2019-12-27 18:30:51,499 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2019-12-27 18:30:51,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-12-27 18:30:51,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-12-27 18:30:51,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-12-27 18:30:51,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2019-12-27 18:30:51,502 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 23 transitions. Word has length 10 [2019-12-27 18:30:51,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:30:51,502 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 23 transitions. [2019-12-27 18:30:51,502 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 18:30:51,503 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2019-12-27 18:30:51,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 18:30:51,503 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:30:51,503 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:30:51,503 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:30:51,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:30:51,504 INFO L82 PathProgramCache]: Analyzing trace with hash -889376455, now seen corresponding path program 1 times [2019-12-27 18:30:51,504 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:30:51,504 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784921614] [2019-12-27 18:30:51,504 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:30:51,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:30:51,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 18:30:51,559 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784921614] [2019-12-27 18:30:51,559 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:30:51,559 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 18:30:51,560 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [571384384] [2019-12-27 18:30:51,560 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:30:51,561 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:30:51,563 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 18 states and 23 transitions. [2019-12-27 18:30:51,564 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:30:51,580 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 1 times. [2019-12-27 18:30:51,581 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 18:30:51,581 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:30:51,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 18:30:51,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 18:30:51,582 INFO L87 Difference]: Start difference. First operand 18 states and 23 transitions. Second operand 5 states. [2019-12-27 18:30:51,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:30:51,603 INFO L93 Difference]: Finished difference Result 17 states and 22 transitions. [2019-12-27 18:30:51,603 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 18:30:51,603 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-12-27 18:30:51,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:30:51,603 INFO L225 Difference]: With dead ends: 17 [2019-12-27 18:30:51,604 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 18:30:51,604 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-27 18:30:51,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 18:30:51,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 18:30:51,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 18:30:51,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 18:30:51,605 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 18:30:51,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:30:51,605 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 18:30:51,605 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 18:30:51,605 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 18:30:51,606 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 18:30:51,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 06:30:51 BasicIcfg [2019-12-27 18:30:51,610 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 18:30:51,612 INFO L168 Benchmark]: Toolchain (without parser) took 4363.27 ms. Allocated memory was 144.2 MB in the beginning and 249.0 MB in the end (delta: 104.9 MB). Free memory was 100.7 MB in the beginning and 97.4 MB in the end (delta: 3.3 MB). Peak memory consumption was 108.2 MB. Max. memory is 7.1 GB. [2019-12-27 18:30:51,613 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 144.2 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-27 18:30:51,614 INFO L168 Benchmark]: CACSL2BoogieTranslator took 671.51 ms. Allocated memory was 144.2 MB in the beginning and 200.8 MB in the end (delta: 56.6 MB). Free memory was 100.3 MB in the beginning and 157.8 MB in the end (delta: -57.5 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2019-12-27 18:30:51,615 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.03 ms. Allocated memory is still 200.8 MB. Free memory was 157.8 MB in the beginning and 155.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 18:30:51,615 INFO L168 Benchmark]: Boogie Preprocessor took 26.94 ms. Allocated memory is still 200.8 MB. Free memory was 155.8 MB in the beginning and 154.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 18:30:51,616 INFO L168 Benchmark]: RCFGBuilder took 434.74 ms. Allocated memory is still 200.8 MB. Free memory was 154.5 MB in the beginning and 133.7 MB in the end (delta: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. [2019-12-27 18:30:51,617 INFO L168 Benchmark]: TraceAbstraction took 3174.49 ms. Allocated memory was 200.8 MB in the beginning and 249.0 MB in the end (delta: 48.2 MB). Free memory was 133.7 MB in the beginning and 97.4 MB in the end (delta: 36.3 MB). Peak memory consumption was 84.5 MB. Max. memory is 7.1 GB. [2019-12-27 18:30:51,621 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 144.2 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 671.51 ms. Allocated memory was 144.2 MB in the beginning and 200.8 MB in the end (delta: 56.6 MB). Free memory was 100.3 MB in the beginning and 157.8 MB in the end (delta: -57.5 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 49.03 ms. Allocated memory is still 200.8 MB. Free memory was 157.8 MB in the beginning and 155.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.94 ms. Allocated memory is still 200.8 MB. Free memory was 155.8 MB in the beginning and 154.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 434.74 ms. Allocated memory is still 200.8 MB. Free memory was 154.5 MB in the beginning and 133.7 MB in the end (delta: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3174.49 ms. Allocated memory was 200.8 MB in the beginning and 249.0 MB in the end (delta: 48.2 MB). Free memory was 133.7 MB in the beginning and 97.4 MB in the end (delta: 36.3 MB). Peak memory consumption was 84.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 63 ProgramPointsBefore, 22 ProgramPointsAfterwards, 54 TransitionsBefore, 17 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 0 ChoiceCompositions, 234 VarBasedMoverChecksPositive, 14 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 13 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 442 CheckedPairsTotal, 45 TotalNumberOfCompositions - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 54 locations, 1 error locations. Result: SAFE, OverallTime: 3.0s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 78 SDtfs, 75 SDslu, 57 SDs, 0 SdLazy, 53 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred 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: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 1713 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...