/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-VariableLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe013_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 22:35:20,407 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 22:35:20,410 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 22:35:20,427 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 22:35:20,428 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 22:35:20,430 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 22:35:20,431 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 22:35:20,440 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 22:35:20,444 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 22:35:20,446 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 22:35:20,448 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 22:35:20,450 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 22:35:20,450 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 22:35:20,452 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 22:35:20,454 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 22:35:20,455 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 22:35:20,456 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 22:35:20,457 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 22:35:20,458 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 22:35:20,463 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 22:35:20,466 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 22:35:20,470 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 22:35:20,471 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 22:35:20,472 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 22:35:20,474 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-18 22:35:20,474 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-18 22:35:20,474 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-18 22:35:20,476 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-18 22:35:20,477 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-18 22:35:20,477 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-18 22:35:20,478 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 22:35:20,478 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 22:35:20,479 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 22:35:20,480 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 22:35:20,481 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 22:35:20,481 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 22:35:20,482 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 22:35:20,482 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 22:35:20,482 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 22:35:20,483 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 22:35:20,484 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 22:35:20,485 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-VariableLbe.epf [2019-12-18 22:35:20,515 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 22:35:20,515 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 22:35:20,516 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 22:35:20,516 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 22:35:20,517 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 22:35:20,521 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 22:35:20,522 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 22:35:20,522 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 22:35:20,522 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 22:35:20,522 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 22:35:20,522 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 22:35:20,525 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 22:35:20,525 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 22:35:20,525 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 22:35:20,525 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 22:35:20,525 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 22:35:20,525 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 22:35:20,526 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 22:35:20,526 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 22:35:20,526 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 22:35:20,526 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 22:35:20,526 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 22:35:20,527 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 22:35:20,527 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 22:35:20,527 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 22:35:20,527 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 22:35:20,527 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 22:35:20,530 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-18 22:35:20,530 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 22:35:20,530 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 22:35:20,843 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 22:35:20,865 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 22:35:20,868 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 22:35:20,870 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 22:35:20,870 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 22:35:20,871 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe013_tso.oepc.i [2019-12-18 22:35:20,937 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/036a156bc/ea8395e88d5f4b62b21dd719b83c9202/FLAG7489597e9 [2019-12-18 22:35:21,467 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 22:35:21,468 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe013_tso.oepc.i [2019-12-18 22:35:21,482 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/036a156bc/ea8395e88d5f4b62b21dd719b83c9202/FLAG7489597e9 [2019-12-18 22:35:21,761 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/036a156bc/ea8395e88d5f4b62b21dd719b83c9202 [2019-12-18 22:35:21,771 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 22:35:21,773 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 22:35:21,773 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 22:35:21,774 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 22:35:21,777 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 22:35:21,778 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 10:35:21" (1/1) ... [2019-12-18 22:35:21,781 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@710c7798 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:35:21, skipping insertion in model container [2019-12-18 22:35:21,781 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 10:35:21" (1/1) ... [2019-12-18 22:35:21,789 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 22:35:21,845 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 22:35:22,302 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 22:35:22,319 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 22:35:22,395 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 22:35:22,470 INFO L208 MainTranslator]: Completed translation [2019-12-18 22:35:22,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:35:22 WrapperNode [2019-12-18 22:35:22,470 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 22:35:22,471 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 22:35:22,471 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 22:35:22,472 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 22:35:22,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:35:22" (1/1) ... [2019-12-18 22:35:22,499 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:35:22" (1/1) ... [2019-12-18 22:35:22,519 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 22:35:22,519 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 22:35:22,519 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 22:35:22,520 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 22:35:22,527 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:35:22" (1/1) ... [2019-12-18 22:35:22,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:35:22" (1/1) ... [2019-12-18 22:35:22,530 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:35:22" (1/1) ... [2019-12-18 22:35:22,530 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:35:22" (1/1) ... [2019-12-18 22:35:22,536 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:35:22" (1/1) ... [2019-12-18 22:35:22,539 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:35:22" (1/1) ... [2019-12-18 22:35:22,541 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:35:22" (1/1) ... [2019-12-18 22:35:22,544 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 22:35:22,544 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 22:35:22,545 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 22:35:22,545 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 22:35:22,546 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:35:22" (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 [2019-12-18 22:35:22,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 22:35:22,606 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-18 22:35:22,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 22:35:22,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 22:35:22,606 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-18 22:35:22,606 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-18 22:35:22,607 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-18 22:35:22,607 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-18 22:35:22,607 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-18 22:35:22,607 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-18 22:35:22,607 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-18 22:35:22,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 22:35:22,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 22:35:22,609 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-18 22:35:22,946 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 22:35:22,947 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-18 22:35:22,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 10:35:22 BoogieIcfgContainer [2019-12-18 22:35:22,948 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 22:35:22,949 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 22:35:22,949 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 22:35:22,952 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 22:35:22,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 10:35:21" (1/3) ... [2019-12-18 22:35:22,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a65e56e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 10:35:22, skipping insertion in model container [2019-12-18 22:35:22,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:35:22" (2/3) ... [2019-12-18 22:35:22,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a65e56e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 10:35:22, skipping insertion in model container [2019-12-18 22:35:22,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 10:35:22" (3/3) ... [2019-12-18 22:35:22,956 INFO L109 eAbstractionObserver]: Analyzing ICFG safe013_tso.oepc.i [2019-12-18 22:35:22,966 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 22:35:22,966 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 22:35:22,973 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 22:35:22,974 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 22:35:23,006 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:35:23,006 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:35:23,007 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:35:23,007 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:35:23,008 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:35:23,008 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:35:23,008 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:35:23,009 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:35:23,009 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:35:23,009 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:35:23,010 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:35:23,010 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:35:23,010 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:35:23,010 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:35:23,011 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:35:23,011 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:35:23,011 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:35:23,011 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:35:23,015 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:35:23,015 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:35:23,015 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:35:23,016 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:35:23,026 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:35:23,027 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:35:23,027 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:35:23,027 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:35:23,030 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:35:23,030 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:35:23,030 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:35:23,031 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:35:23,051 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 22:35:23,067 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 22:35:23,067 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 22:35:23,068 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 22:35:23,068 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 22:35:23,068 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 22:35:23,068 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 22:35:23,068 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 22:35:23,069 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 22:35:23,083 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-18 22:35:23,085 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-18 22:35:23,140 INFO L126 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-18 22:35:23,140 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 22:35:23,147 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 9/58 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 22:35:23,151 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-18 22:35:23,169 INFO L126 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-18 22:35:23,169 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 22:35:23,171 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 9/58 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 22:35:23,173 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-18 22:35:23,174 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-18 22:35:24,505 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-12-18 22:35:24,673 INFO L206 etLargeBlockEncoding]: Checked pairs total: 479 [2019-12-18 22:35:24,674 INFO L214 etLargeBlockEncoding]: Total number of compositions: 46 [2019-12-18 22:35:24,680 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-18 22:35:24,697 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-18 22:35:24,701 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-18 22:35:24,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 22:35:24,722 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 22:35:24,723 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 22:35:24,724 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 22:35:24,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 22:35:24,734 INFO L82 PathProgramCache]: Analyzing trace with hash -196435608, now seen corresponding path program 1 times [2019-12-18 22:35:24,748 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 22:35:24,749 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534081430] [2019-12-18 22:35:24,749 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 22:35:24,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 22:35:25,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 22:35:25,095 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534081430] [2019-12-18 22:35:25,097 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 22:35:25,098 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 22:35:25,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118916674] [2019-12-18 22:35:25,105 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 22:35:25,105 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 22:35:25,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 22:35:25,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 22:35:25,124 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-18 22:35:25,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 22:35:25,164 INFO L93 Difference]: Finished difference Result 44 states and 89 transitions. [2019-12-18 22:35:25,165 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 22:35:25,166 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-18 22:35:25,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 22:35:25,179 INFO L225 Difference]: With dead ends: 44 [2019-12-18 22:35:25,179 INFO L226 Difference]: Without dead ends: 36 [2019-12-18 22:35:25,181 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 22:35:25,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-18 22:35:25,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-18 22:35:25,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-18 22:35:25,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 69 transitions. [2019-12-18 22:35:25,216 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 69 transitions. Word has length 8 [2019-12-18 22:35:25,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 22:35:25,217 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 69 transitions. [2019-12-18 22:35:25,217 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 22:35:25,218 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2019-12-18 22:35:25,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 22:35:25,218 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 22:35:25,219 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 22:35:25,219 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 22:35:25,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 22:35:25,219 INFO L82 PathProgramCache]: Analyzing trace with hash -1074136562, now seen corresponding path program 1 times [2019-12-18 22:35:25,220 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 22:35:25,220 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854685603] [2019-12-18 22:35:25,220 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 22:35:25,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 22:35:25,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 22:35:25,281 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854685603] [2019-12-18 22:35:25,282 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 22:35:25,282 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 22:35:25,282 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884625566] [2019-12-18 22:35:25,284 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 22:35:25,284 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 22:35:25,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 22:35:25,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 22:35:25,285 INFO L87 Difference]: Start difference. First operand 36 states and 69 transitions. Second operand 3 states. [2019-12-18 22:35:25,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 22:35:25,291 INFO L93 Difference]: Finished difference Result 34 states and 64 transitions. [2019-12-18 22:35:25,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 22:35:25,292 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-18 22:35:25,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 22:35:25,293 INFO L225 Difference]: With dead ends: 34 [2019-12-18 22:35:25,293 INFO L226 Difference]: Without dead ends: 34 [2019-12-18 22:35:25,294 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 22:35:25,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-18 22:35:25,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-18 22:35:25,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-18 22:35:25,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-18 22:35:25,301 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 9 [2019-12-18 22:35:25,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 22:35:25,301 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-18 22:35:25,301 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 22:35:25,302 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-18 22:35:25,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 22:35:25,302 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 22:35:25,302 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 22:35:25,303 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 22:35:25,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 22:35:25,303 INFO L82 PathProgramCache]: Analyzing trace with hash -1794448346, now seen corresponding path program 1 times [2019-12-18 22:35:25,303 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 22:35:25,304 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736603494] [2019-12-18 22:35:25,304 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 22:35:25,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 22:35:25,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 22:35:25,370 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736603494] [2019-12-18 22:35:25,370 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 22:35:25,371 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 22:35:25,371 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152247990] [2019-12-18 22:35:25,371 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 22:35:25,372 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 22:35:25,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 22:35:25,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 22:35:25,373 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 3 states. [2019-12-18 22:35:25,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 22:35:25,384 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-18 22:35:25,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 22:35:25,385 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-18 22:35:25,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 22:35:25,388 INFO L225 Difference]: With dead ends: 36 [2019-12-18 22:35:25,389 INFO L226 Difference]: Without dead ends: 22 [2019-12-18 22:35:25,389 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 22:35:25,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-12-18 22:35:25,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-12-18 22:35:25,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-12-18 22:35:25,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 33 transitions. [2019-12-18 22:35:25,393 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 33 transitions. Word has length 9 [2019-12-18 22:35:25,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 22:35:25,393 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 33 transitions. [2019-12-18 22:35:25,393 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 22:35:25,394 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2019-12-18 22:35:25,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 22:35:25,394 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 22:35:25,394 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 22:35:25,395 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 22:35:25,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 22:35:25,395 INFO L82 PathProgramCache]: Analyzing trace with hash 206758562, now seen corresponding path program 1 times [2019-12-18 22:35:25,395 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 22:35:25,396 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398679167] [2019-12-18 22:35:25,396 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 22:35:25,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 22:35:25,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 22:35:25,455 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398679167] [2019-12-18 22:35:25,455 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 22:35:25,455 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 22:35:25,457 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083817099] [2019-12-18 22:35:25,457 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 22:35:25,458 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 22:35:25,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 22:35:25,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 22:35:25,458 INFO L87 Difference]: Start difference. First operand 22 states and 33 transitions. Second operand 4 states. [2019-12-18 22:35:25,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 22:35:25,483 INFO L93 Difference]: Finished difference Result 25 states and 35 transitions. [2019-12-18 22:35:25,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 22:35:25,484 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-18 22:35:25,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 22:35:25,484 INFO L225 Difference]: With dead ends: 25 [2019-12-18 22:35:25,484 INFO L226 Difference]: Without dead ends: 17 [2019-12-18 22:35:25,485 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-18 22:35:25,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-18 22:35:25,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-18 22:35:25,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-18 22:35:25,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-12-18 22:35:25,488 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 10 [2019-12-18 22:35:25,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 22:35:25,488 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-12-18 22:35:25,489 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 22:35:25,489 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-12-18 22:35:25,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 22:35:25,489 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 22:35:25,489 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 22:35:25,491 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 22:35:25,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 22:35:25,492 INFO L82 PathProgramCache]: Analyzing trace with hash -1297271908, now seen corresponding path program 1 times [2019-12-18 22:35:25,492 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 22:35:25,492 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733442486] [2019-12-18 22:35:25,492 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 22:35:25,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 22:35:25,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 22:35:25,573 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733442486] [2019-12-18 22:35:25,573 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 22:35:25,573 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 22:35:25,573 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929444847] [2019-12-18 22:35:25,574 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 22:35:25,574 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 22:35:25,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 22:35:25,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 22:35:25,575 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 4 states. [2019-12-18 22:35:25,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 22:35:25,591 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2019-12-18 22:35:25,591 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 22:35:25,591 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-18 22:35:25,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 22:35:25,592 INFO L225 Difference]: With dead ends: 16 [2019-12-18 22:35:25,592 INFO L226 Difference]: Without dead ends: 0 [2019-12-18 22:35:25,592 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-18 22:35:25,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-18 22:35:25,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-18 22:35:25,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-18 22:35:25,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-18 22:35:25,598 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-18 22:35:25,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 22:35:25,599 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-18 22:35:25,599 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 22:35:25,599 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-18 22:35:25,599 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-18 22:35:25,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 10:35:25 BasicIcfg [2019-12-18 22:35:25,606 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 22:35:25,609 INFO L168 Benchmark]: Toolchain (without parser) took 3835.74 ms. Allocated memory was 140.0 MB in the beginning and 243.8 MB in the end (delta: 103.8 MB). Free memory was 103.1 MB in the beginning and 155.0 MB in the end (delta: -51.9 MB). Peak memory consumption was 51.9 MB. Max. memory is 7.1 GB. [2019-12-18 22:35:25,610 INFO L168 Benchmark]: CDTParser took 1.36 ms. Allocated memory is still 140.0 MB. Free memory was 123.2 MB in the beginning and 122.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-18 22:35:25,611 INFO L168 Benchmark]: CACSL2BoogieTranslator took 697.47 ms. Allocated memory was 140.0 MB in the beginning and 205.5 MB in the end (delta: 65.5 MB). Free memory was 102.6 MB in the beginning and 162.9 MB in the end (delta: -60.2 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. [2019-12-18 22:35:25,612 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.82 ms. Allocated memory is still 205.5 MB. Free memory was 162.2 MB in the beginning and 160.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-18 22:35:25,613 INFO L168 Benchmark]: Boogie Preprocessor took 24.75 ms. Allocated memory is still 205.5 MB. Free memory was 160.3 MB in the beginning and 159.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-18 22:35:25,613 INFO L168 Benchmark]: RCFGBuilder took 403.77 ms. Allocated memory is still 205.5 MB. Free memory was 159.0 MB in the beginning and 138.5 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2019-12-18 22:35:25,614 INFO L168 Benchmark]: TraceAbstraction took 2657.24 ms. Allocated memory was 205.5 MB in the beginning and 243.8 MB in the end (delta: 38.3 MB). Free memory was 137.9 MB in the beginning and 155.0 MB in the end (delta: -17.1 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. [2019-12-18 22:35:25,619 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.36 ms. Allocated memory is still 140.0 MB. Free memory was 123.2 MB in the beginning and 122.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 697.47 ms. Allocated memory was 140.0 MB in the beginning and 205.5 MB in the end (delta: 65.5 MB). Free memory was 102.6 MB in the beginning and 162.9 MB in the end (delta: -60.2 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 47.82 ms. Allocated memory is still 205.5 MB. Free memory was 162.2 MB in the beginning and 160.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.75 ms. Allocated memory is still 205.5 MB. Free memory was 160.3 MB in the beginning and 159.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 403.77 ms. Allocated memory is still 205.5 MB. Free memory was 159.0 MB in the beginning and 138.5 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2657.24 ms. Allocated memory was 205.5 MB in the beginning and 243.8 MB in the end (delta: 38.3 MB). Free memory was 137.9 MB in the beginning and 155.0 MB in the end (delta: -17.1 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 63 ProgramPointsBefore, 21 ProgramPointsAfterwards, 54 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 229 VarBasedMoverChecksPositive, 13 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 479 CheckedPairsTotal, 46 TotalNumberOfCompositions - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 59 SDtfs, 17 SDslu, 41 SDs, 0 SdLazy, 19 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 878 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...