/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe026_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 04:04:40,454 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 04:04:40,457 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 04:04:40,475 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 04:04:40,476 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 04:04:40,478 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 04:04:40,480 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 04:04:40,491 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 04:04:40,493 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 04:04:40,493 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 04:04:40,494 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 04:04:40,495 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 04:04:40,496 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 04:04:40,497 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 04:04:40,497 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 04:04:40,498 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 04:04:40,499 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 04:04:40,500 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 04:04:40,501 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 04:04:40,503 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 04:04:40,504 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 04:04:40,505 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 04:04:40,506 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 04:04:40,507 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 04:04:40,509 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 04:04:40,509 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 04:04:40,509 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 04:04:40,510 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 04:04:40,511 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 04:04:40,511 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 04:04:40,512 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 04:04:40,512 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 04:04:40,513 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 04:04:40,514 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 04:04:40,515 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 04:04:40,515 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 04:04:40,516 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 04:04:40,516 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 04:04:40,516 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 04:04:40,517 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 04:04:40,518 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 04:04:40,518 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf [2019-12-27 04:04:40,532 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 04:04:40,532 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 04:04:40,533 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 04:04:40,533 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 04:04:40,534 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 04:04:40,534 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 04:04:40,534 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 04:04:40,534 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 04:04:40,534 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 04:04:40,535 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 04:04:40,535 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 04:04:40,535 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 04:04:40,535 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 04:04:40,535 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 04:04:40,536 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 04:04:40,536 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 04:04:40,536 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 04:04:40,536 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 04:04:40,536 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 04:04:40,537 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 04:04:40,537 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 04:04:40,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 04:04:40,537 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 04:04:40,537 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 04:04:40,537 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 04:04:40,538 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 04:04:40,538 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 04:04:40,538 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 04:04:40,538 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 04:04:40,820 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 04:04:40,833 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 04:04:40,838 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 04:04:40,840 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 04:04:40,840 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 04:04:40,842 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe026_tso.oepc.i [2019-12-27 04:04:40,913 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d985c927f/3b184e6bf1f54c5abda67e67a29dd29c/FLAG946010e2b [2019-12-27 04:04:41,441 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 04:04:41,442 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe026_tso.oepc.i [2019-12-27 04:04:41,455 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d985c927f/3b184e6bf1f54c5abda67e67a29dd29c/FLAG946010e2b [2019-12-27 04:04:41,730 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d985c927f/3b184e6bf1f54c5abda67e67a29dd29c [2019-12-27 04:04:41,741 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 04:04:41,743 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 04:04:41,744 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 04:04:41,744 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 04:04:41,747 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 04:04:41,748 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 04:04:41" (1/1) ... [2019-12-27 04:04:41,751 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@614e4f18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:04:41, skipping insertion in model container [2019-12-27 04:04:41,751 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 04:04:41" (1/1) ... [2019-12-27 04:04:41,759 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 04:04:41,798 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 04:04:42,264 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 04:04:42,275 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 04:04:42,316 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 04:04:42,395 INFO L208 MainTranslator]: Completed translation [2019-12-27 04:04:42,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:04:42 WrapperNode [2019-12-27 04:04:42,395 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 04:04:42,396 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 04:04:42,396 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 04:04:42,396 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 04:04:42,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:04:42" (1/1) ... [2019-12-27 04:04:42,421 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:04:42" (1/1) ... [2019-12-27 04:04:42,443 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 04:04:42,444 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 04:04:42,444 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 04:04:42,444 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 04:04:42,453 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:04:42" (1/1) ... [2019-12-27 04:04:42,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:04:42" (1/1) ... [2019-12-27 04:04:42,457 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:04:42" (1/1) ... [2019-12-27 04:04:42,457 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:04:42" (1/1) ... [2019-12-27 04:04:42,463 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:04:42" (1/1) ... [2019-12-27 04:04:42,465 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:04:42" (1/1) ... [2019-12-27 04:04:42,467 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:04:42" (1/1) ... [2019-12-27 04:04:42,471 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 04:04:42,471 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 04:04:42,471 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 04:04:42,471 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 04:04:42,472 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:04:42" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 04:04:42,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 04:04:42,544 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 04:04:42,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 04:04:42,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 04:04:42,545 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 04:04:42,545 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 04:04:42,545 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 04:04:42,545 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 04:04:42,546 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 04:04:42,546 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 04:04:42,546 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 04:04:42,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 04:04:42,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 04:04:42,548 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 04:04:42,976 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 04:04:42,976 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 04:04:42,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 04:04:42 BoogieIcfgContainer [2019-12-27 04:04:42,979 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 04:04:42,980 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 04:04:42,980 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 04:04:42,983 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 04:04:42,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 04:04:41" (1/3) ... [2019-12-27 04:04:42,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a419877 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 04:04:42, skipping insertion in model container [2019-12-27 04:04:42,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:04:42" (2/3) ... [2019-12-27 04:04:42,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a419877 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 04:04:42, skipping insertion in model container [2019-12-27 04:04:42,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 04:04:42" (3/3) ... [2019-12-27 04:04:42,987 INFO L109 eAbstractionObserver]: Analyzing ICFG safe026_tso.oepc.i [2019-12-27 04:04:42,996 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 04:04:42,997 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 04:04:43,003 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 04:04:43,005 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 04:04:43,032 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:04:43,032 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:04:43,033 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:04:43,035 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:04:43,035 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:04:43,035 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:04:43,036 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:04:43,036 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:04:43,036 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:04:43,037 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:04:43,038 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:04:43,038 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:04:43,038 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:04:43,038 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:04:43,039 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:04:43,039 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:04:43,039 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:04:43,040 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:04:43,044 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:04:43,044 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:04:43,044 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:04:43,045 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:04:43,050 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:04:43,051 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:04:43,051 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:04:43,051 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:04:43,054 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:04:43,054 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:04:43,054 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:04:43,054 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:04:43,070 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 04:04:43,090 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 04:04:43,091 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 04:04:43,091 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 04:04:43,091 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 04:04:43,091 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 04:04:43,091 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 04:04:43,092 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 04:04:43,092 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 04:04:43,105 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 53 transitions [2019-12-27 04:04:43,107 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-27 04:04:43,158 INFO L132 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-27 04:04:43,158 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 04:04:43,166 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 0/48 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 04:04:43,171 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-27 04:04:43,189 INFO L132 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-27 04:04:43,189 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 04:04:43,190 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 0/48 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 04:04:43,192 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 04:04:43,193 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 04:04:44,636 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2019-12-27 04:04:44,696 INFO L206 etLargeBlockEncoding]: Checked pairs total: 489 [2019-12-27 04:04:44,696 INFO L214 etLargeBlockEncoding]: Total number of compositions: 43 [2019-12-27 04:04:44,700 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-27 04:04:44,710 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-27 04:04:44,712 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-27 04:04:44,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 04:04:44,719 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:04:44,720 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:04:44,720 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 04:04:44,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:04:44,726 INFO L82 PathProgramCache]: Analyzing trace with hash -1221233282, now seen corresponding path program 1 times [2019-12-27 04:04:44,736 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:04:44,736 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182655475] [2019-12-27 04:04:44,737 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:04:44,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:04:44,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 04:04:44,990 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182655475] [2019-12-27 04:04:44,990 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:04:44,991 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 04:04:44,992 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698814878] [2019-12-27 04:04:44,999 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 04:04:44,999 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:04:45,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 04:04:45,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 04:04:45,017 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-27 04:04:45,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:04:45,044 INFO L93 Difference]: Finished difference Result 42 states and 84 transitions. [2019-12-27 04:04:45,044 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 04:04:45,046 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 04:04:45,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:04:45,058 INFO L225 Difference]: With dead ends: 42 [2019-12-27 04:04:45,058 INFO L226 Difference]: Without dead ends: 34 [2019-12-27 04:04:45,059 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 04:04:45,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-27 04:04:45,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-27 04:04:45,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 04:04:45,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-27 04:04:45,098 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-27 04:04:45,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:04:45,099 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-27 04:04:45,099 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 04:04:45,100 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-27 04:04:45,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 04:04:45,101 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:04:45,101 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:04:45,101 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 04:04:45,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:04:45,102 INFO L82 PathProgramCache]: Analyzing trace with hash 796473804, now seen corresponding path program 1 times [2019-12-27 04:04:45,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:04:45,102 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626566287] [2019-12-27 04:04:45,102 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:04:45,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:04:45,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 04:04:45,160 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626566287] [2019-12-27 04:04:45,160 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:04:45,161 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 04:04:45,161 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717280219] [2019-12-27 04:04:45,162 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 04:04:45,163 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:04:45,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 04:04:45,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 04:04:45,164 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 4 states. [2019-12-27 04:04:45,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:04:45,191 INFO L93 Difference]: Finished difference Result 39 states and 68 transitions. [2019-12-27 04:04:45,192 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 04:04:45,192 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-27 04:04:45,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:04:45,193 INFO L225 Difference]: With dead ends: 39 [2019-12-27 04:04:45,193 INFO L226 Difference]: Without dead ends: 31 [2019-12-27 04:04:45,194 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 04:04:45,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-12-27 04:04:45,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-12-27 04:04:45,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-12-27 04:04:45,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 54 transitions. [2019-12-27 04:04:45,200 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 54 transitions. Word has length 9 [2019-12-27 04:04:45,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:04:45,200 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 54 transitions. [2019-12-27 04:04:45,200 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 04:04:45,200 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 54 transitions. [2019-12-27 04:04:45,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 04:04:45,201 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:04:45,201 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:04:45,201 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 04:04:45,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:04:45,202 INFO L82 PathProgramCache]: Analyzing trace with hash 1474951325, now seen corresponding path program 1 times [2019-12-27 04:04:45,202 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:04:45,202 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140725762] [2019-12-27 04:04:45,203 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:04:45,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:04:45,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 04:04:45,285 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140725762] [2019-12-27 04:04:45,286 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:04:45,286 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 04:04:45,286 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138305205] [2019-12-27 04:04:45,287 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 04:04:45,287 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:04:45,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 04:04:45,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 04:04:45,288 INFO L87 Difference]: Start difference. First operand 31 states and 54 transitions. Second operand 4 states. [2019-12-27 04:04:45,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:04:45,324 INFO L93 Difference]: Finished difference Result 32 states and 53 transitions. [2019-12-27 04:04:45,325 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 04:04:45,325 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-27 04:04:45,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:04:45,326 INFO L225 Difference]: With dead ends: 32 [2019-12-27 04:04:45,326 INFO L226 Difference]: Without dead ends: 18 [2019-12-27 04:04:45,326 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 [2019-12-27 04:04:45,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-12-27 04:04:45,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-12-27 04:04:45,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-12-27 04:04:45,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2019-12-27 04:04:45,331 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 23 transitions. Word has length 10 [2019-12-27 04:04:45,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:04:45,334 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 23 transitions. [2019-12-27 04:04:45,334 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 04:04:45,335 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2019-12-27 04:04:45,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 04:04:45,335 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:04:45,335 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:04:45,336 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 04:04:45,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:04:45,336 INFO L82 PathProgramCache]: Analyzing trace with hash -1079116931, now seen corresponding path program 1 times [2019-12-27 04:04:45,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:04:45,338 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173451705] [2019-12-27 04:04:45,339 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:04:45,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:04:45,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 04:04:45,551 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173451705] [2019-12-27 04:04:45,551 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:04:45,551 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 04:04:45,551 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481286795] [2019-12-27 04:04:45,552 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 04:04:45,552 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:04:45,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 04:04:45,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 04:04:45,553 INFO L87 Difference]: Start difference. First operand 18 states and 23 transitions. Second operand 5 states. [2019-12-27 04:04:45,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:04:45,631 INFO L93 Difference]: Finished difference Result 20 states and 24 transitions. [2019-12-27 04:04:45,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 04:04:45,632 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-12-27 04:04:45,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:04:45,632 INFO L225 Difference]: With dead ends: 20 [2019-12-27 04:04:45,632 INFO L226 Difference]: Without dead ends: 16 [2019-12-27 04:04:45,633 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-27 04:04:45,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-12-27 04:04:45,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-12-27 04:04:45,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-12-27 04:04:45,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2019-12-27 04:04:45,636 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 10 [2019-12-27 04:04:45,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:04:45,636 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2019-12-27 04:04:45,637 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 04:04:45,637 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2019-12-27 04:04:45,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 04:04:45,637 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:04:45,637 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:04:45,638 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 04:04:45,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:04:45,638 INFO L82 PathProgramCache]: Analyzing trace with hash -1076556641, now seen corresponding path program 2 times [2019-12-27 04:04:45,638 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:04:45,639 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498196761] [2019-12-27 04:04:45,639 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:04:45,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:04:45,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 04:04:45,721 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498196761] [2019-12-27 04:04:45,722 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:04:45,722 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 04:04:45,723 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043868219] [2019-12-27 04:04:45,723 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 04:04:45,724 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:04:45,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 04:04:45,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 04:04:45,725 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand 6 states. [2019-12-27 04:04:45,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:04:45,832 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2019-12-27 04:04:45,833 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 04:04:45,833 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-12-27 04:04:45,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:04:45,833 INFO L225 Difference]: With dead ends: 16 [2019-12-27 04:04:45,833 INFO L226 Difference]: Without dead ends: 14 [2019-12-27 04:04:45,834 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-27 04:04:45,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-12-27 04:04:45,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-12-27 04:04:45,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-12-27 04:04:45,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2019-12-27 04:04:45,837 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 10 [2019-12-27 04:04:45,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:04:45,837 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2019-12-27 04:04:45,837 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 04:04:45,837 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2019-12-27 04:04:45,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 04:04:45,838 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:04:45,838 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:04:45,838 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 04:04:45,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:04:45,839 INFO L82 PathProgramCache]: Analyzing trace with hash 986560406, now seen corresponding path program 1 times [2019-12-27 04:04:45,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:04:45,839 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134544759] [2019-12-27 04:04:45,839 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:04:45,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:04:45,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 04:04:45,879 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134544759] [2019-12-27 04:04:45,880 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:04:45,880 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 04:04:45,880 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370803008] [2019-12-27 04:04:45,880 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 04:04:45,881 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:04:45,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 04:04:45,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 04:04:45,884 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 3 states. [2019-12-27 04:04:45,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:04:45,913 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2019-12-27 04:04:45,915 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 04:04:45,915 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-12-27 04:04:45,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:04:45,915 INFO L225 Difference]: With dead ends: 13 [2019-12-27 04:04:45,915 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 04:04:45,916 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 [2019-12-27 04:04:45,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 04:04:45,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 04:04:45,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 04:04:45,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 04:04:45,917 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 04:04:45,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:04:45,917 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 04:04:45,917 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 04:04:45,917 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 04:04:45,917 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 04:04:45,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 04:04:45 BasicIcfg [2019-12-27 04:04:45,924 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 04:04:45,928 INFO L168 Benchmark]: Toolchain (without parser) took 4183.52 ms. Allocated memory was 144.2 MB in the beginning and 248.5 MB in the end (delta: 104.3 MB). Free memory was 100.7 MB in the beginning and 125.2 MB in the end (delta: -24.5 MB). Peak memory consumption was 79.9 MB. Max. memory is 7.1 GB. [2019-12-27 04:04:45,929 INFO L168 Benchmark]: CDTParser took 2.01 ms. Allocated memory is still 144.2 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-12-27 04:04:45,935 INFO L168 Benchmark]: CACSL2BoogieTranslator took 652.10 ms. Allocated memory was 144.2 MB in the beginning and 202.4 MB in the end (delta: 58.2 MB). Free memory was 100.5 MB in the beginning and 159.4 MB in the end (delta: -58.9 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2019-12-27 04:04:45,936 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.65 ms. Allocated memory is still 202.4 MB. Free memory was 159.4 MB in the beginning and 157.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-12-27 04:04:45,937 INFO L168 Benchmark]: Boogie Preprocessor took 26.86 ms. Allocated memory is still 202.4 MB. Free memory was 157.3 MB in the beginning and 155.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-27 04:04:45,938 INFO L168 Benchmark]: RCFGBuilder took 507.62 ms. Allocated memory is still 202.4 MB. Free memory was 155.9 MB in the beginning and 135.0 MB in the end (delta: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 7.1 GB. [2019-12-27 04:04:45,938 INFO L168 Benchmark]: TraceAbstraction took 2944.00 ms. Allocated memory was 202.4 MB in the beginning and 248.5 MB in the end (delta: 46.1 MB). Free memory was 135.0 MB in the beginning and 125.2 MB in the end (delta: 9.9 MB). Peak memory consumption was 56.0 MB. Max. memory is 7.1 GB. [2019-12-27 04:04:45,951 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.01 ms. Allocated memory is still 144.2 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 652.10 ms. Allocated memory was 144.2 MB in the beginning and 202.4 MB in the end (delta: 58.2 MB). Free memory was 100.5 MB in the beginning and 159.4 MB in the end (delta: -58.9 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 47.65 ms. Allocated memory is still 202.4 MB. Free memory was 159.4 MB in the beginning and 157.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.86 ms. Allocated memory is still 202.4 MB. Free memory was 157.3 MB in the beginning and 155.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 507.62 ms. Allocated memory is still 202.4 MB. Free memory was 155.9 MB in the beginning and 135.0 MB in the end (delta: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2944.00 ms. Allocated memory was 202.4 MB in the beginning and 248.5 MB in the end (delta: 46.1 MB). Free memory was 135.0 MB in the beginning and 125.2 MB in the end (delta: 9.9 MB). Peak memory consumption was 56.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 62 ProgramPointsBefore, 21 ProgramPointsAfterwards, 53 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 210 VarBasedMoverChecksPositive, 15 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 17 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 489 CheckedPairsTotal, 43 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, 53 locations, 1 error locations. Result: SAFE, OverallTime: 2.8s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 65 SDtfs, 45 SDslu, 47 SDs, 0 SdLazy, 49 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 52 ConstructedInterpolants, 0 QuantifiedInterpolants, 1433 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...