/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/safe015_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 04:44:42,969 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 04:44:42,972 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 04:44:42,987 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 04:44:42,987 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 04:44:42,988 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 04:44:42,990 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 04:44:42,991 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 04:44:42,993 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 04:44:42,994 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 04:44:42,995 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 04:44:42,996 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 04:44:42,997 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 04:44:42,998 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 04:44:42,999 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 04:44:43,000 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 04:44:43,001 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 04:44:43,002 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 04:44:43,003 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 04:44:43,006 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 04:44:43,007 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 04:44:43,009 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 04:44:43,010 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 04:44:43,011 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 04:44:43,014 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-19 04:44:43,014 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-19 04:44:43,014 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-19 04:44:43,015 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-19 04:44:43,016 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-19 04:44:43,017 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-19 04:44:43,017 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 04:44:43,018 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 04:44:43,019 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 04:44:43,023 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 04:44:43,027 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 04:44:43,027 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 04:44:43,031 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 04:44:43,031 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 04:44:43,031 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 04:44:43,032 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 04:44:43,033 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 04:44:43,037 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 04:44:43,061 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 04:44:43,061 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 04:44:43,063 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 04:44:43,064 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 04:44:43,064 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 04:44:43,064 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 04:44:43,064 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 04:44:43,064 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 04:44:43,065 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 04:44:43,065 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 04:44:43,066 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 04:44:43,066 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 04:44:43,066 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 04:44:43,067 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 04:44:43,067 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 04:44:43,067 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 04:44:43,067 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 04:44:43,068 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 04:44:43,068 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 04:44:43,068 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 04:44:43,069 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 04:44:43,069 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 04:44:43,069 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 04:44:43,069 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 04:44:43,069 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 04:44:43,070 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 04:44:43,070 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 04:44:43,070 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 04:44:43,070 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 04:44:43,070 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 04:44:43,334 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 04:44:43,349 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 04:44:43,351 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 04:44:43,352 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 04:44:43,353 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 04:44:43,354 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe015_pso.opt.i [2019-12-19 04:44:43,413 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac53bb0b3/e660084505e146ccb741e00bb700f07f/FLAG7b8c33f74 [2019-12-19 04:44:43,977 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 04:44:43,978 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe015_pso.opt.i [2019-12-19 04:44:44,000 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac53bb0b3/e660084505e146ccb741e00bb700f07f/FLAG7b8c33f74 [2019-12-19 04:44:44,233 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac53bb0b3/e660084505e146ccb741e00bb700f07f [2019-12-19 04:44:44,241 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 04:44:44,243 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 04:44:44,245 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 04:44:44,245 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 04:44:44,250 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 04:44:44,251 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:44:44" (1/1) ... [2019-12-19 04:44:44,254 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40cd7482 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:44:44, skipping insertion in model container [2019-12-19 04:44:44,254 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:44:44" (1/1) ... [2019-12-19 04:44:44,263 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 04:44:44,306 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 04:44:44,763 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:44:44,777 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 04:44:44,829 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:44:44,909 INFO L208 MainTranslator]: Completed translation [2019-12-19 04:44:44,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:44:44 WrapperNode [2019-12-19 04:44:44,910 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 04:44:44,910 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 04:44:44,911 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 04:44:44,911 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 04:44:44,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:44:44" (1/1) ... [2019-12-19 04:44:44,938 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:44:44" (1/1) ... [2019-12-19 04:44:44,962 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 04:44:44,963 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 04:44:44,963 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 04:44:44,963 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 04:44:44,972 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:44:44" (1/1) ... [2019-12-19 04:44:44,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:44:44" (1/1) ... [2019-12-19 04:44:44,976 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:44:44" (1/1) ... [2019-12-19 04:44:44,976 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:44:44" (1/1) ... [2019-12-19 04:44:44,982 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:44:44" (1/1) ... [2019-12-19 04:44:44,985 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:44:44" (1/1) ... [2019-12-19 04:44:44,987 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:44:44" (1/1) ... [2019-12-19 04:44:44,990 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 04:44:44,991 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 04:44:44,991 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 04:44:44,991 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 04:44:44,992 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:44:44" (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 04:44:45,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 04:44:45,061 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 04:44:45,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 04:44:45,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 04:44:45,061 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 04:44:45,062 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 04:44:45,062 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 04:44:45,062 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 04:44:45,062 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 04:44:45,062 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 04:44:45,063 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 04:44:45,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 04:44:45,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 04:44:45,065 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 04:44:45,439 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 04:44:45,440 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-19 04:44:45,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:44:45 BoogieIcfgContainer [2019-12-19 04:44:45,442 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 04:44:45,443 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 04:44:45,443 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 04:44:45,446 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 04:44:45,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 04:44:44" (1/3) ... [2019-12-19 04:44:45,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c9ee2c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:44:45, skipping insertion in model container [2019-12-19 04:44:45,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:44:44" (2/3) ... [2019-12-19 04:44:45,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c9ee2c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:44:45, skipping insertion in model container [2019-12-19 04:44:45,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:44:45" (3/3) ... [2019-12-19 04:44:45,449 INFO L109 eAbstractionObserver]: Analyzing ICFG safe015_pso.opt.i [2019-12-19 04:44:45,458 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 04:44:45,459 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 04:44:45,466 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 04:44:45,467 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 04:44:45,494 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:44:45,495 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:44:45,495 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:44:45,496 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:44:45,496 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:44:45,496 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:44:45,497 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:44:45,497 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:44:45,497 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:44:45,497 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:44:45,498 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:44:45,498 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:44:45,498 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:44:45,499 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:44:45,499 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:44:45,499 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:44:45,500 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:44:45,500 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:44:45,504 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:44:45,504 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:44:45,505 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:44:45,505 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:44:45,517 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:44:45,517 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:44:45,518 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:44:45,518 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:44:45,522 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:44:45,522 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:44:45,522 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:44:45,523 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:44:45,542 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-19 04:44:45,567 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 04:44:45,567 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 04:44:45,567 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 04:44:45,568 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 04:44:45,568 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 04:44:45,569 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 04:44:45,569 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 04:44:45,569 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 04:44:45,585 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 62 places, 53 transitions [2019-12-19 04:44:45,677 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1247 states. [2019-12-19 04:44:45,680 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states. [2019-12-19 04:44:45,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-12-19 04:44:45,711 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:44:45,714 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 04:44:45,714 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:44:45,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:44:45,722 INFO L82 PathProgramCache]: Analyzing trace with hash -1402148942, now seen corresponding path program 1 times [2019-12-19 04:44:45,731 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:44:45,732 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929437801] [2019-12-19 04:44:45,732 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:44:45,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:44:46,110 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 04:44:46,111 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929437801] [2019-12-19 04:44:46,112 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:44:46,112 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 04:44:46,113 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194709378] [2019-12-19 04:44:46,119 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 04:44:46,120 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:44:46,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 04:44:46,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 04:44:46,139 INFO L87 Difference]: Start difference. First operand 1247 states. Second operand 4 states. [2019-12-19 04:44:46,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:44:46,247 INFO L93 Difference]: Finished difference Result 1294 states and 3960 transitions. [2019-12-19 04:44:46,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-19 04:44:46,250 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2019-12-19 04:44:46,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:44:46,278 INFO L225 Difference]: With dead ends: 1294 [2019-12-19 04:44:46,278 INFO L226 Difference]: Without dead ends: 600 [2019-12-19 04:44:46,281 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 04:44:46,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2019-12-19 04:44:46,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 600. [2019-12-19 04:44:46,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 600 states. [2019-12-19 04:44:46,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 1775 transitions. [2019-12-19 04:44:46,423 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 1775 transitions. Word has length 30 [2019-12-19 04:44:46,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:44:46,424 INFO L462 AbstractCegarLoop]: Abstraction has 600 states and 1775 transitions. [2019-12-19 04:44:46,424 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 04:44:46,424 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 1775 transitions. [2019-12-19 04:44:46,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-19 04:44:46,429 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:44:46,429 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 04:44:46,429 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:44:46,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:44:46,430 INFO L82 PathProgramCache]: Analyzing trace with hash -191362068, now seen corresponding path program 1 times [2019-12-19 04:44:46,431 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:44:46,431 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697922870] [2019-12-19 04:44:46,431 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:44:46,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:44:46,622 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 04:44:46,622 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697922870] [2019-12-19 04:44:46,622 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:44:46,623 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 04:44:46,623 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128845906] [2019-12-19 04:44:46,625 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 04:44:46,625 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:44:46,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 04:44:46,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-19 04:44:46,626 INFO L87 Difference]: Start difference. First operand 600 states and 1775 transitions. Second operand 5 states. [2019-12-19 04:44:46,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:44:46,696 INFO L93 Difference]: Finished difference Result 600 states and 1694 transitions. [2019-12-19 04:44:46,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 04:44:46,697 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-12-19 04:44:46,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:44:46,703 INFO L225 Difference]: With dead ends: 600 [2019-12-19 04:44:46,703 INFO L226 Difference]: Without dead ends: 537 [2019-12-19 04:44:46,704 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-19 04:44:46,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2019-12-19 04:44:46,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2019-12-19 04:44:46,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2019-12-19 04:44:46,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 1544 transitions. [2019-12-19 04:44:46,734 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 1544 transitions. Word has length 31 [2019-12-19 04:44:46,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:44:46,734 INFO L462 AbstractCegarLoop]: Abstraction has 537 states and 1544 transitions. [2019-12-19 04:44:46,735 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 04:44:46,735 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 1544 transitions. [2019-12-19 04:44:46,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-19 04:44:46,737 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:44:46,737 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 04:44:46,737 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:44:46,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:44:46,738 INFO L82 PathProgramCache]: Analyzing trace with hash 1139876538, now seen corresponding path program 1 times [2019-12-19 04:44:46,738 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:44:46,738 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354136012] [2019-12-19 04:44:46,738 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:44:46,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:44:46,879 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 04:44:46,880 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354136012] [2019-12-19 04:44:46,880 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:44:46,880 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 04:44:46,880 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435617490] [2019-12-19 04:44:46,881 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 04:44:46,881 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:44:46,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 04:44:46,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-19 04:44:46,883 INFO L87 Difference]: Start difference. First operand 537 states and 1544 transitions. Second operand 6 states. [2019-12-19 04:44:46,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:44:46,979 INFO L93 Difference]: Finished difference Result 402 states and 1058 transitions. [2019-12-19 04:44:46,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:44:46,979 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-12-19 04:44:46,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:44:46,982 INFO L225 Difference]: With dead ends: 402 [2019-12-19 04:44:46,982 INFO L226 Difference]: Without dead ends: 348 [2019-12-19 04:44:46,983 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 04:44:46,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2019-12-19 04:44:46,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2019-12-19 04:44:46,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2019-12-19 04:44:46,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 914 transitions. [2019-12-19 04:44:46,999 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 914 transitions. Word has length 32 [2019-12-19 04:44:47,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:44:47,000 INFO L462 AbstractCegarLoop]: Abstraction has 348 states and 914 transitions. [2019-12-19 04:44:47,001 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 04:44:47,001 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 914 transitions. [2019-12-19 04:44:47,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 04:44:47,003 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:44:47,003 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 04:44:47,004 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:44:47,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:44:47,004 INFO L82 PathProgramCache]: Analyzing trace with hash -1474863345, now seen corresponding path program 1 times [2019-12-19 04:44:47,005 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:44:47,005 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516485898] [2019-12-19 04:44:47,005 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:44:47,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:44:47,247 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 04:44:47,247 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516485898] [2019-12-19 04:44:47,247 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:44:47,247 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 04:44:47,248 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473895686] [2019-12-19 04:44:47,248 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 04:44:47,248 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:44:47,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 04:44:47,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-19 04:44:47,249 INFO L87 Difference]: Start difference. First operand 348 states and 914 transitions. Second operand 8 states. [2019-12-19 04:44:47,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:44:47,483 INFO L93 Difference]: Finished difference Result 465 states and 1232 transitions. [2019-12-19 04:44:47,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-12-19 04:44:47,484 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2019-12-19 04:44:47,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:44:47,484 INFO L225 Difference]: With dead ends: 465 [2019-12-19 04:44:47,484 INFO L226 Difference]: Without dead ends: 0 [2019-12-19 04:44:47,485 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2019-12-19 04:44:47,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-19 04:44:47,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-19 04:44:47,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-19 04:44:47,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-19 04:44:47,486 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2019-12-19 04:44:47,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:44:47,487 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-19 04:44:47,487 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 04:44:47,487 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-19 04:44:47,487 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-19 04:44:47,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 04:44:47 BasicIcfg [2019-12-19 04:44:47,493 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 04:44:47,496 INFO L168 Benchmark]: Toolchain (without parser) took 3252.33 ms. Allocated memory was 136.8 MB in the beginning and 231.2 MB in the end (delta: 94.4 MB). Free memory was 100.2 MB in the beginning and 87.6 MB in the end (delta: 12.6 MB). Peak memory consumption was 107.0 MB. Max. memory is 7.1 GB. [2019-12-19 04:44:47,497 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 136.8 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-12-19 04:44:47,498 INFO L168 Benchmark]: CACSL2BoogieTranslator took 665.44 ms. Allocated memory was 136.8 MB in the beginning and 200.8 MB in the end (delta: 64.0 MB). Free memory was 99.8 MB in the beginning and 158.2 MB in the end (delta: -58.4 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. [2019-12-19 04:44:47,499 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.96 ms. Allocated memory is still 200.8 MB. Free memory was 158.2 MB in the beginning and 155.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2019-12-19 04:44:47,499 INFO L168 Benchmark]: Boogie Preprocessor took 27.70 ms. Allocated memory is still 200.8 MB. Free memory was 155.5 MB in the beginning and 154.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-19 04:44:47,500 INFO L168 Benchmark]: RCFGBuilder took 451.43 ms. Allocated memory is still 200.8 MB. Free memory was 154.2 MB in the beginning and 133.6 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2019-12-19 04:44:47,501 INFO L168 Benchmark]: TraceAbstraction took 2050.19 ms. Allocated memory was 200.8 MB in the beginning and 231.2 MB in the end (delta: 30.4 MB). Free memory was 133.6 MB in the beginning and 87.6 MB in the end (delta: 46.0 MB). Peak memory consumption was 76.4 MB. Max. memory is 7.1 GB. [2019-12-19 04:44:47,505 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 136.8 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 665.44 ms. Allocated memory was 136.8 MB in the beginning and 200.8 MB in the end (delta: 64.0 MB). Free memory was 99.8 MB in the beginning and 158.2 MB in the end (delta: -58.4 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.96 ms. Allocated memory is still 200.8 MB. Free memory was 158.2 MB in the beginning and 155.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.70 ms. Allocated memory is still 200.8 MB. Free memory was 155.5 MB in the beginning and 154.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 451.43 ms. Allocated memory is still 200.8 MB. Free memory was 154.2 MB in the beginning and 133.6 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2050.19 ms. Allocated memory was 200.8 MB in the beginning and 231.2 MB in the end (delta: 30.4 MB). Free memory was 133.6 MB in the beginning and 87.6 MB in the end (delta: 46.0 MB). Peak memory consumption was 76.4 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: 1.9s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 165 SDtfs, 325 SDslu, 372 SDs, 0 SdLazy, 70 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.5s 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 126 NumberOfCodeBlocks, 126 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 122 ConstructedInterpolants, 0 QuantifiedInterpolants, 11546 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...