/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-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe020_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 04:57:58,042 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 04:57:58,047 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 04:57:58,060 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 04:57:58,060 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 04:57:58,061 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 04:57:58,062 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 04:57:58,064 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 04:57:58,066 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 04:57:58,067 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 04:57:58,068 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 04:57:58,069 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 04:57:58,069 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 04:57:58,071 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 04:57:58,072 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 04:57:58,073 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 04:57:58,073 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 04:57:58,074 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 04:57:58,076 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 04:57:58,078 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 04:57:58,080 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 04:57:58,081 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 04:57:58,083 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 04:57:58,084 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 04:57:58,086 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-19 04:57:58,090 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 04:57:58,091 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 04:57:58,092 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 04:57:58,092 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 04:57:58,094 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 04:57:58,094 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 04:57:58,094 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 04:57:58,095 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 04:57:58,095 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 04:57:58,096 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 04:57:58,097 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 04:57:58,098 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-NoLbe.epf [2019-12-19 04:57:58,127 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 04:57:58,127 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 04:57:58,131 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 04:57:58,132 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 04:57:58,132 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 04:57:58,132 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 04:57:58,132 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 04:57:58,132 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 04:57:58,132 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 04:57:58,133 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 04:57:58,133 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 04:57:58,133 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 04:57:58,133 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 04:57:58,133 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 04:57:58,133 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 04:57:58,134 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 04:57:58,134 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 04:57:58,134 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 04:57:58,135 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 04:57:58,135 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 04:57:58,135 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 04:57:58,136 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 04:57:58,136 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 04:57:58,136 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 04:57:58,136 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 04:57:58,137 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 04:57:58,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 04:57:58,137 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 04:57:58,137 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 04:57:58,137 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 04:57:58,409 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 04:57:58,428 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 04:57:58,432 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 04:57:58,434 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 04:57:58,434 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 04:57:58,435 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe020_tso.oepc.i [2019-12-19 04:57:58,499 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ca7a8522/bf1e455fbe3e4acf961009da34955e54/FLAG704fe2b0f [2019-12-19 04:57:59,064 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 04:57:59,065 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe020_tso.oepc.i [2019-12-19 04:57:59,086 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ca7a8522/bf1e455fbe3e4acf961009da34955e54/FLAG704fe2b0f [2019-12-19 04:57:59,253 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ca7a8522/bf1e455fbe3e4acf961009da34955e54 [2019-12-19 04:57:59,266 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 04:57:59,268 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 04:57:59,274 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 04:57:59,274 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 04:57:59,277 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 04:57:59,279 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:57:59" (1/1) ... [2019-12-19 04:57:59,281 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@245817ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:57:59, skipping insertion in model container [2019-12-19 04:57:59,282 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:57:59" (1/1) ... [2019-12-19 04:57:59,291 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 04:57:59,343 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 04:57:59,814 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:57:59,832 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 04:57:59,904 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:57:59,975 INFO L208 MainTranslator]: Completed translation [2019-12-19 04:57:59,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:57:59 WrapperNode [2019-12-19 04:57:59,975 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 04:57:59,976 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 04:57:59,977 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 04:57:59,977 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 04:57:59,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:57:59" (1/1) ... [2019-12-19 04:58:00,005 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:57:59" (1/1) ... [2019-12-19 04:58:00,026 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 04:58:00,026 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 04:58:00,027 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 04:58:00,028 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 04:58:00,035 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:57:59" (1/1) ... [2019-12-19 04:58:00,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:57:59" (1/1) ... [2019-12-19 04:58:00,039 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:57:59" (1/1) ... [2019-12-19 04:58:00,039 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:57:59" (1/1) ... [2019-12-19 04:58:00,048 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:57:59" (1/1) ... [2019-12-19 04:58:00,050 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:57:59" (1/1) ... [2019-12-19 04:58:00,053 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:57:59" (1/1) ... [2019-12-19 04:58:00,056 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 04:58:00,057 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 04:58:00,057 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 04:58:00,057 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 04:58:00,058 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:57:59" (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 [2019-12-19 04:58:00,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 04:58:00,120 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 04:58:00,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 04:58:00,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 04:58:00,121 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 04:58:00,121 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 04:58:00,121 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 04:58:00,121 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 04:58:00,121 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 04:58:00,121 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 04:58:00,122 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 04:58:00,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 04:58:00,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 04:58:00,124 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-19 04:58:00,476 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 04:58:00,476 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-19 04:58:00,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:58:00 BoogieIcfgContainer [2019-12-19 04:58:00,478 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 04:58:00,479 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 04:58:00,479 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 04:58:00,482 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 04:58:00,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 04:57:59" (1/3) ... [2019-12-19 04:58:00,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ca12e3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:58:00, skipping insertion in model container [2019-12-19 04:58:00,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:57:59" (2/3) ... [2019-12-19 04:58:00,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ca12e3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:58:00, skipping insertion in model container [2019-12-19 04:58:00,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:58:00" (3/3) ... [2019-12-19 04:58:00,486 INFO L109 eAbstractionObserver]: Analyzing ICFG safe020_tso.oepc.i [2019-12-19 04:58:00,496 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 04:58:00,496 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 04:58:00,503 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 04:58:00,504 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 04:58:00,533 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:58:00,533 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:58:00,534 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:58:00,534 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:58:00,534 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:58:00,535 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:58:00,535 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:58:00,535 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:58:00,536 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:58:00,536 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:58:00,536 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:58:00,537 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:58:00,537 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:58:00,537 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:58:00,537 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:58:00,538 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:58:00,538 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:58:00,538 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:58:00,542 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:58:00,543 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:58:00,543 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:58:00,543 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:58:00,549 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:58:00,550 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:58:00,550 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:58:00,550 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:58:00,553 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:58:00,554 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:58:00,554 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:58:00,554 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:58:00,577 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-19 04:58:00,595 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 04:58:00,595 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 04:58:00,595 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 04:58:00,595 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 04:58:00,596 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 04:58:00,596 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 04:58:00,596 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 04:58:00,596 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 04:58:00,608 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 62 places, 53 transitions [2019-12-19 04:58:00,689 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1247 states. [2019-12-19 04:58:00,691 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states. [2019-12-19 04:58:00,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-12-19 04:58:00,708 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:58:00,709 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:58:00,709 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:58:00,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:58:00,716 INFO L82 PathProgramCache]: Analyzing trace with hash 1589731149, now seen corresponding path program 1 times [2019-12-19 04:58:00,725 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:58:00,726 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468861494] [2019-12-19 04:58:00,726 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:58:00,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:58:01,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:58:01,089 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468861494] [2019-12-19 04:58:01,090 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:58:01,090 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 04:58:01,091 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542970750] [2019-12-19 04:58:01,097 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 04:58:01,097 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:58:01,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 04:58:01,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 04:58:01,116 INFO L87 Difference]: Start difference. First operand 1247 states. Second operand 4 states. [2019-12-19 04:58:01,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:58:01,239 INFO L93 Difference]: Finished difference Result 1294 states and 3960 transitions. [2019-12-19 04:58:01,240 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-19 04:58:01,241 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2019-12-19 04:58:01,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:58:01,292 INFO L225 Difference]: With dead ends: 1294 [2019-12-19 04:58:01,292 INFO L226 Difference]: Without dead ends: 600 [2019-12-19 04:58:01,294 INFO L631 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 [2019-12-19 04:58:01,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2019-12-19 04:58:01,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 600. [2019-12-19 04:58:01,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 600 states. [2019-12-19 04:58:01,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 1775 transitions. [2019-12-19 04:58:01,396 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 1775 transitions. Word has length 30 [2019-12-19 04:58:01,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:58:01,397 INFO L462 AbstractCegarLoop]: Abstraction has 600 states and 1775 transitions. [2019-12-19 04:58:01,397 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 04:58:01,397 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 1775 transitions. [2019-12-19 04:58:01,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-19 04:58:01,403 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:58:01,403 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:58:01,404 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:58:01,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:58:01,409 INFO L82 PathProgramCache]: Analyzing trace with hash 227019057, now seen corresponding path program 1 times [2019-12-19 04:58:01,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:58:01,410 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174978497] [2019-12-19 04:58:01,410 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:58:01,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:58:01,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:58:01,597 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174978497] [2019-12-19 04:58:01,597 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:58:01,597 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 04:58:01,598 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036788854] [2019-12-19 04:58:01,600 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 04:58:01,601 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:58:01,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 04:58:01,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-19 04:58:01,602 INFO L87 Difference]: Start difference. First operand 600 states and 1775 transitions. Second operand 5 states. [2019-12-19 04:58:01,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:58:01,699 INFO L93 Difference]: Finished difference Result 600 states and 1694 transitions. [2019-12-19 04:58:01,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 04:58:01,701 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-12-19 04:58:01,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:58:01,710 INFO L225 Difference]: With dead ends: 600 [2019-12-19 04:58:01,710 INFO L226 Difference]: Without dead ends: 537 [2019-12-19 04:58:01,711 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-19 04:58:01,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2019-12-19 04:58:01,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2019-12-19 04:58:01,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2019-12-19 04:58:01,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 1544 transitions. [2019-12-19 04:58:01,745 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 1544 transitions. Word has length 31 [2019-12-19 04:58:01,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:58:01,746 INFO L462 AbstractCegarLoop]: Abstraction has 537 states and 1544 transitions. [2019-12-19 04:58:01,746 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 04:58:01,746 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 1544 transitions. [2019-12-19 04:58:01,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-19 04:58:01,748 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:58:01,749 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:58:01,749 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:58:01,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:58:01,749 INFO L82 PathProgramCache]: Analyzing trace with hash -524737327, now seen corresponding path program 1 times [2019-12-19 04:58:01,750 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:58:01,750 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356642622] [2019-12-19 04:58:01,750 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:58:01,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:58:01,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:58:01,921 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356642622] [2019-12-19 04:58:01,921 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:58:01,921 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 04:58:01,922 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929212704] [2019-12-19 04:58:01,922 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 04:58:01,923 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:58:01,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 04:58:01,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-19 04:58:01,924 INFO L87 Difference]: Start difference. First operand 537 states and 1544 transitions. Second operand 6 states. [2019-12-19 04:58:02,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:58:02,036 INFO L93 Difference]: Finished difference Result 402 states and 1058 transitions. [2019-12-19 04:58:02,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:58:02,036 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-12-19 04:58:02,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:58:02,040 INFO L225 Difference]: With dead ends: 402 [2019-12-19 04:58:02,040 INFO L226 Difference]: Without dead ends: 348 [2019-12-19 04:58:02,041 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-19 04:58:02,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2019-12-19 04:58:02,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2019-12-19 04:58:02,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2019-12-19 04:58:02,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 914 transitions. [2019-12-19 04:58:02,067 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 914 transitions. Word has length 32 [2019-12-19 04:58:02,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:58:02,067 INFO L462 AbstractCegarLoop]: Abstraction has 348 states and 914 transitions. [2019-12-19 04:58:02,067 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 04:58:02,067 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 914 transitions. [2019-12-19 04:58:02,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 04:58:02,070 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:58:02,071 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:58:02,071 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:58:02,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:58:02,071 INFO L82 PathProgramCache]: Analyzing trace with hash 1007154836, now seen corresponding path program 1 times [2019-12-19 04:58:02,072 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:58:02,072 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820676029] [2019-12-19 04:58:02,072 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:58:02,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:58:02,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:58:02,287 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820676029] [2019-12-19 04:58:02,289 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:58:02,290 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 04:58:02,290 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510447184] [2019-12-19 04:58:02,291 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 04:58:02,291 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:58:02,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 04:58:02,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-19 04:58:02,294 INFO L87 Difference]: Start difference. First operand 348 states and 914 transitions. Second operand 6 states. [2019-12-19 04:58:02,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:58:02,447 INFO L93 Difference]: Finished difference Result 519 states and 1394 transitions. [2019-12-19 04:58:02,447 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 04:58:02,448 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-12-19 04:58:02,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:58:02,450 INFO L225 Difference]: With dead ends: 519 [2019-12-19 04:58:02,451 INFO L226 Difference]: Without dead ends: 276 [2019-12-19 04:58:02,452 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-19 04:58:02,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2019-12-19 04:58:02,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 276. [2019-12-19 04:58:02,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2019-12-19 04:58:02,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 725 transitions. [2019-12-19 04:58:02,466 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 725 transitions. Word has length 33 [2019-12-19 04:58:02,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:58:02,467 INFO L462 AbstractCegarLoop]: Abstraction has 276 states and 725 transitions. [2019-12-19 04:58:02,467 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 04:58:02,467 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 725 transitions. [2019-12-19 04:58:02,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 04:58:02,470 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:58:02,471 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:58:02,471 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:58:02,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:58:02,471 INFO L82 PathProgramCache]: Analyzing trace with hash -1391348590, now seen corresponding path program 2 times [2019-12-19 04:58:02,472 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:58:02,472 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688818555] [2019-12-19 04:58:02,472 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:58:02,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:58:02,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:58:02,647 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688818555] [2019-12-19 04:58:02,647 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:58:02,647 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 04:58:02,648 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838170315] [2019-12-19 04:58:02,648 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 04:58:02,648 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:58:02,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 04:58:02,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 04:58:02,649 INFO L87 Difference]: Start difference. First operand 276 states and 725 transitions. Second operand 7 states. [2019-12-19 04:58:02,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:58:02,801 INFO L93 Difference]: Finished difference Result 447 states and 1205 transitions. [2019-12-19 04:58:02,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:58:02,802 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-12-19 04:58:02,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:58:02,804 INFO L225 Difference]: With dead ends: 447 [2019-12-19 04:58:02,804 INFO L226 Difference]: Without dead ends: 264 [2019-12-19 04:58:02,805 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-12-19 04:58:02,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2019-12-19 04:58:02,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 264. [2019-12-19 04:58:02,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2019-12-19 04:58:02,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 695 transitions. [2019-12-19 04:58:02,814 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 695 transitions. Word has length 33 [2019-12-19 04:58:02,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:58:02,814 INFO L462 AbstractCegarLoop]: Abstraction has 264 states and 695 transitions. [2019-12-19 04:58:02,814 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 04:58:02,814 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 695 transitions. [2019-12-19 04:58:02,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 04:58:02,815 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:58:02,816 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:58:02,816 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:58:02,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:58:02,816 INFO L82 PathProgramCache]: Analyzing trace with hash 304903326, now seen corresponding path program 3 times [2019-12-19 04:58:02,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:58:02,817 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57996031] [2019-12-19 04:58:02,817 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:58:02,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:58:02,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:58:02,917 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57996031] [2019-12-19 04:58:02,917 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:58:02,918 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 04:58:02,918 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713365816] [2019-12-19 04:58:02,918 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 04:58:02,918 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:58:02,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 04:58:02,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 04:58:02,919 INFO L87 Difference]: Start difference. First operand 264 states and 695 transitions. Second operand 7 states. [2019-12-19 04:58:03,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:58:03,025 INFO L93 Difference]: Finished difference Result 210 states and 533 transitions. [2019-12-19 04:58:03,025 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:58:03,025 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-12-19 04:58:03,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:58:03,026 INFO L225 Difference]: With dead ends: 210 [2019-12-19 04:58:03,026 INFO L226 Difference]: Without dead ends: 0 [2019-12-19 04:58:03,026 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-19 04:58:03,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-19 04:58:03,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-19 04:58:03,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-19 04:58:03,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-19 04:58:03,027 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2019-12-19 04:58:03,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:58:03,028 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-19 04:58:03,028 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 04:58:03,028 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-19 04:58:03,028 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-19 04:58:03,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 04:58:03 BasicIcfg [2019-12-19 04:58:03,034 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 04:58:03,037 INFO L168 Benchmark]: Toolchain (without parser) took 3769.00 ms. Allocated memory was 145.8 MB in the beginning and 250.6 MB in the end (delta: 104.9 MB). Free memory was 100.9 MB in the beginning and 181.3 MB in the end (delta: -80.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. [2019-12-19 04:58:03,038 INFO L168 Benchmark]: CDTParser took 0.53 ms. Allocated memory is still 145.8 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-12-19 04:58:03,039 INFO L168 Benchmark]: CACSL2BoogieTranslator took 702.28 ms. Allocated memory was 145.8 MB in the beginning and 203.9 MB in the end (delta: 58.2 MB). Free memory was 100.7 MB in the beginning and 161.9 MB in the end (delta: -61.2 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. [2019-12-19 04:58:03,040 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.90 ms. Allocated memory is still 203.9 MB. Free memory was 161.9 MB in the beginning and 159.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-19 04:58:03,041 INFO L168 Benchmark]: Boogie Preprocessor took 30.18 ms. Allocated memory is still 203.9 MB. Free memory was 159.9 MB in the beginning and 158.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-19 04:58:03,042 INFO L168 Benchmark]: RCFGBuilder took 420.96 ms. Allocated memory is still 203.9 MB. Free memory was 158.6 MB in the beginning and 138.5 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2019-12-19 04:58:03,042 INFO L168 Benchmark]: TraceAbstraction took 2555.47 ms. Allocated memory was 203.9 MB in the beginning and 250.6 MB in the end (delta: 46.7 MB). Free memory was 137.9 MB in the beginning and 181.3 MB in the end (delta: -43.5 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. [2019-12-19 04:58:03,047 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53 ms. Allocated memory is still 145.8 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 702.28 ms. Allocated memory was 145.8 MB in the beginning and 203.9 MB in the end (delta: 58.2 MB). Free memory was 100.7 MB in the beginning and 161.9 MB in the end (delta: -61.2 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 49.90 ms. Allocated memory is still 203.9 MB. Free memory was 161.9 MB in the beginning and 159.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.18 ms. Allocated memory is still 203.9 MB. Free memory was 159.9 MB in the beginning and 158.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 420.96 ms. Allocated memory is still 203.9 MB. Free memory was 158.6 MB in the beginning and 138.5 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2555.47 ms. Allocated memory was 203.9 MB in the beginning and 250.6 MB in the end (delta: 46.7 MB). Free memory was 137.9 MB in the beginning and 181.3 MB in the end (delta: -43.5 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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, 53 locations, 1 error locations. Result: SAFE, OverallTime: 2.4s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 281 SDtfs, 352 SDslu, 717 SDs, 0 SdLazy, 108 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1247occurred 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 192 NumberOfCodeBlocks, 192 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 186 ConstructedInterpolants, 0 QuantifiedInterpolants, 16154 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...