/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/safe025_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 04:01:08,521 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 04:01:08,523 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 04:01:08,535 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 04:01:08,536 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 04:01:08,537 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 04:01:08,538 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 04:01:08,540 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 04:01:08,542 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 04:01:08,543 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 04:01:08,544 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 04:01:08,545 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 04:01:08,545 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 04:01:08,546 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 04:01:08,547 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 04:01:08,548 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 04:01:08,549 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 04:01:08,550 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 04:01:08,552 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 04:01:08,554 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 04:01:08,556 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 04:01:08,557 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 04:01:08,559 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 04:01:08,560 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 04:01:08,562 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 04:01:08,562 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 04:01:08,563 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 04:01:08,564 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 04:01:08,564 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 04:01:08,565 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 04:01:08,566 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 04:01:08,566 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 04:01:08,567 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 04:01:08,568 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 04:01:08,569 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 04:01:08,570 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 04:01:08,570 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 04:01:08,570 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 04:01:08,571 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 04:01:08,574 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 04:01:08,575 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 04:01:08,576 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 04:01:08,598 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 04:01:08,598 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 04:01:08,600 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 04:01:08,600 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 04:01:08,600 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 04:01:08,600 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 04:01:08,600 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 04:01:08,601 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 04:01:08,601 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 04:01:08,601 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 04:01:08,601 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 04:01:08,601 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 04:01:08,602 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 04:01:08,602 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 04:01:08,602 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 04:01:08,602 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 04:01:08,602 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 04:01:08,603 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 04:01:08,603 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 04:01:08,603 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 04:01:08,603 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 04:01:08,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 04:01:08,604 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 04:01:08,604 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 04:01:08,604 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 04:01:08,604 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 04:01:08,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 04:01:08,605 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 04:01:08,605 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 04:01:08,907 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 04:01:08,917 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 04:01:08,921 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 04:01:08,922 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 04:01:08,923 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 04:01:08,924 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe025_tso.oepc.i [2019-12-27 04:01:08,997 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98f086ce6/2e34fa7dde2041b1861de007573ad869/FLAGdb44a38f0 [2019-12-27 04:01:09,525 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 04:01:09,526 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe025_tso.oepc.i [2019-12-27 04:01:09,547 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98f086ce6/2e34fa7dde2041b1861de007573ad869/FLAGdb44a38f0 [2019-12-27 04:01:09,836 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98f086ce6/2e34fa7dde2041b1861de007573ad869 [2019-12-27 04:01:09,845 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 04:01:09,847 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 04:01:09,848 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 04:01:09,848 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 04:01:09,851 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 04:01:09,852 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 04:01:09" (1/1) ... [2019-12-27 04:01:09,855 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60f84663 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:01:09, skipping insertion in model container [2019-12-27 04:01:09,855 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 04:01:09" (1/1) ... [2019-12-27 04:01:09,863 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 04:01:09,922 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 04:01:10,503 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 04:01:10,520 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 04:01:10,579 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 04:01:10,659 INFO L208 MainTranslator]: Completed translation [2019-12-27 04:01:10,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:01:10 WrapperNode [2019-12-27 04:01:10,660 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 04:01:10,661 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 04:01:10,661 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 04:01:10,661 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 04:01:10,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:01:10" (1/1) ... [2019-12-27 04:01:10,700 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:01:10" (1/1) ... [2019-12-27 04:01:10,723 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 04:01:10,724 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 04:01:10,724 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 04:01:10,724 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 04:01:10,734 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:01:10" (1/1) ... [2019-12-27 04:01:10,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:01:10" (1/1) ... [2019-12-27 04:01:10,737 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:01:10" (1/1) ... [2019-12-27 04:01:10,738 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:01:10" (1/1) ... [2019-12-27 04:01:10,744 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:01:10" (1/1) ... [2019-12-27 04:01:10,747 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:01:10" (1/1) ... [2019-12-27 04:01:10,749 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:01:10" (1/1) ... [2019-12-27 04:01:10,752 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 04:01:10,753 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 04:01:10,753 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 04:01:10,753 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 04:01:10,754 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:01:10" (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 04:01:10,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 04:01:10,812 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 04:01:10,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 04:01:10,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 04:01:10,812 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 04:01:10,813 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 04:01:10,813 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 04:01:10,813 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 04:01:10,813 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 04:01:10,813 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 04:01:10,814 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 04:01:10,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 04:01:10,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 04:01:10,816 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 04:01:11,217 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 04:01:11,218 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 04:01:11,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 04:01:11 BoogieIcfgContainer [2019-12-27 04:01:11,219 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 04:01:11,221 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 04:01:11,221 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 04:01:11,224 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 04:01:11,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 04:01:09" (1/3) ... [2019-12-27 04:01:11,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@747a4da5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 04:01:11, skipping insertion in model container [2019-12-27 04:01:11,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:01:10" (2/3) ... [2019-12-27 04:01:11,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@747a4da5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 04:01:11, skipping insertion in model container [2019-12-27 04:01:11,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 04:01:11" (3/3) ... [2019-12-27 04:01:11,228 INFO L109 eAbstractionObserver]: Analyzing ICFG safe025_tso.oepc.i [2019-12-27 04:01:11,239 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 04:01:11,239 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 04:01:11,247 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 04:01:11,249 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 04:01:11,276 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:11,277 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:11,277 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:11,278 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:11,278 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:11,278 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:11,279 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:11,279 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:11,279 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:11,280 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:11,280 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:11,280 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:11,281 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:11,281 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:11,281 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:11,281 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:11,282 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:11,282 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:11,286 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:11,287 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:11,287 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:11,287 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:11,290 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:11,291 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:11,291 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:11,291 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:11,294 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:11,294 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:11,294 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:11,295 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:11,315 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 04:01:11,333 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 04:01:11,333 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 04:01:11,333 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 04:01:11,334 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 04:01:11,334 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 04:01:11,334 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 04:01:11,334 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 04:01:11,334 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 04:01:11,351 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-27 04:01:11,353 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 04:01:11,398 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 04:01:11,399 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 04:01:11,406 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. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 04:01:11,408 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 04:01:11,429 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 04:01:11,429 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 04:01:11,433 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. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 04:01:11,435 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 04:01:11,437 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 04:01:12,798 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-12-27 04:01:12,987 INFO L206 etLargeBlockEncoding]: Checked pairs total: 467 [2019-12-27 04:01:12,987 INFO L214 etLargeBlockEncoding]: Total number of compositions: 44 [2019-12-27 04:01:12,991 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-27 04:01:13,002 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-27 04:01:13,005 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-27 04:01:13,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 04:01:13,012 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:01:13,013 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:01:13,013 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 04:01:13,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:01:13,019 INFO L82 PathProgramCache]: Analyzing trace with hash -53140901, now seen corresponding path program 1 times [2019-12-27 04:01:13,027 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:01:13,027 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073118670] [2019-12-27 04:01:13,027 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:01:13,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:01:13,289 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 04:01:13,290 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073118670] [2019-12-27 04:01:13,292 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:01:13,293 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 04:01:13,297 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721592285] [2019-12-27 04:01:13,301 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 04:01:13,301 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:01:13,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 04:01:13,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 04:01:13,318 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-27 04:01:13,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:01:13,354 INFO L93 Difference]: Finished difference Result 42 states and 84 transitions. [2019-12-27 04:01:13,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 04:01:13,357 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 04:01:13,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:01:13,370 INFO L225 Difference]: With dead ends: 42 [2019-12-27 04:01:13,370 INFO L226 Difference]: Without dead ends: 34 [2019-12-27 04:01:13,372 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 04:01:13,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-27 04:01:13,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-27 04:01:13,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 04:01:13,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-27 04:01:13,413 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-27 04:01:13,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:01:13,415 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-27 04:01:13,415 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 04:01:13,415 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-27 04:01:13,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 04:01:13,417 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:01:13,417 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:01:13,418 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 04:01:13,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:01:13,418 INFO L82 PathProgramCache]: Analyzing trace with hash -1649012318, now seen corresponding path program 1 times [2019-12-27 04:01:13,419 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:01:13,419 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006641844] [2019-12-27 04:01:13,419 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:01:13,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:01:13,502 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 04:01:13,502 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006641844] [2019-12-27 04:01:13,503 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:01:13,503 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 04:01:13,503 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927676240] [2019-12-27 04:01:13,506 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 04:01:13,506 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:01:13,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 04:01:13,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 04:01:13,507 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 3 states. [2019-12-27 04:01:13,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:01:13,514 INFO L93 Difference]: Finished difference Result 32 states and 59 transitions. [2019-12-27 04:01:13,515 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 04:01:13,515 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-27 04:01:13,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:01:13,516 INFO L225 Difference]: With dead ends: 32 [2019-12-27 04:01:13,516 INFO L226 Difference]: Without dead ends: 32 [2019-12-27 04:01:13,517 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 04:01:13,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-12-27 04:01:13,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-12-27 04:01:13,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-12-27 04:01:13,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 59 transitions. [2019-12-27 04:01:13,529 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 59 transitions. Word has length 9 [2019-12-27 04:01:13,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:01:13,529 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 59 transitions. [2019-12-27 04:01:13,530 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 04:01:13,530 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 59 transitions. [2019-12-27 04:01:13,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 04:01:13,532 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:01:13,532 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:01:13,533 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 04:01:13,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:01:13,534 INFO L82 PathProgramCache]: Analyzing trace with hash 420225671, now seen corresponding path program 1 times [2019-12-27 04:01:13,534 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:01:13,535 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832431294] [2019-12-27 04:01:13,535 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:01:13,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:01:13,740 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 04:01:13,742 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832431294] [2019-12-27 04:01:13,742 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:01:13,742 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 04:01:13,743 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068401987] [2019-12-27 04:01:13,744 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 04:01:13,744 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:01:13,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 04:01:13,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-27 04:01:13,745 INFO L87 Difference]: Start difference. First operand 32 states and 59 transitions. Second operand 6 states. [2019-12-27 04:01:13,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:01:13,820 INFO L93 Difference]: Finished difference Result 32 states and 57 transitions. [2019-12-27 04:01:13,820 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 04:01:13,821 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-12-27 04:01:13,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:01:13,822 INFO L225 Difference]: With dead ends: 32 [2019-12-27 04:01:13,822 INFO L226 Difference]: Without dead ends: 24 [2019-12-27 04:01:13,823 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2019-12-27 04:01:13,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-12-27 04:01:13,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-12-27 04:01:13,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-12-27 04:01:13,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 38 transitions. [2019-12-27 04:01:13,827 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 38 transitions. Word has length 10 [2019-12-27 04:01:13,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:01:13,827 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 38 transitions. [2019-12-27 04:01:13,828 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 04:01:13,828 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 38 transitions. [2019-12-27 04:01:13,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 04:01:13,828 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:01:13,828 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:01:13,829 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 04:01:13,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:01:13,829 INFO L82 PathProgramCache]: Analyzing trace with hash 868107411, now seen corresponding path program 1 times [2019-12-27 04:01:13,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:01:13,830 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670945390] [2019-12-27 04:01:13,830 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:01:13,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:01:13,900 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 04:01:13,900 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670945390] [2019-12-27 04:01:13,900 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:01:13,901 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 04:01:13,901 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313763046] [2019-12-27 04:01:13,902 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 04:01:13,902 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:01:13,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 04:01:13,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 04:01:13,903 INFO L87 Difference]: Start difference. First operand 24 states and 38 transitions. Second operand 4 states. [2019-12-27 04:01:13,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:01:13,920 INFO L93 Difference]: Finished difference Result 27 states and 40 transitions. [2019-12-27 04:01:13,920 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 04:01:13,921 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 04:01:13,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:01:13,921 INFO L225 Difference]: With dead ends: 27 [2019-12-27 04:01:13,921 INFO L226 Difference]: Without dead ends: 16 [2019-12-27 04:01:13,922 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 04:01:13,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-12-27 04:01:13,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-12-27 04:01:13,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-12-27 04:01:13,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2019-12-27 04:01:13,924 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 11 [2019-12-27 04:01:13,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:01:13,925 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2019-12-27 04:01:13,925 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 04:01:13,925 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2019-12-27 04:01:13,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 04:01:13,925 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:01:13,926 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:01:13,926 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 04:01:13,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:01:13,926 INFO L82 PathProgramCache]: Analyzing trace with hash 144947967, now seen corresponding path program 2 times [2019-12-27 04:01:13,927 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:01:13,927 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511993112] [2019-12-27 04:01:13,927 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:01:13,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:01:14,011 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 04:01:14,012 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511993112] [2019-12-27 04:01:14,012 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:01:14,012 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 04:01:14,012 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620761938] [2019-12-27 04:01:14,013 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 04:01:14,013 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:01:14,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 04:01:14,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 04:01:14,013 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand 4 states. [2019-12-27 04:01:14,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:01:14,043 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2019-12-27 04:01:14,045 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 04:01:14,045 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 04:01:14,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:01:14,046 INFO L225 Difference]: With dead ends: 18 [2019-12-27 04:01:14,046 INFO L226 Difference]: Without dead ends: 12 [2019-12-27 04:01:14,046 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 04:01:14,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-12-27 04:01:14,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-12-27 04:01:14,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-12-27 04:01:14,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2019-12-27 04:01:14,050 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 11 [2019-12-27 04:01:14,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:01:14,051 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2019-12-27 04:01:14,054 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 04:01:14,054 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2019-12-27 04:01:14,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 04:01:14,055 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:01:14,055 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:01:14,055 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 04:01:14,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:01:14,055 INFO L82 PathProgramCache]: Analyzing trace with hash 1810889517, now seen corresponding path program 3 times [2019-12-27 04:01:14,056 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:01:14,056 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370803008] [2019-12-27 04:01:14,056 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:01:14,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:01:14,125 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 04:01:14,125 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370803008] [2019-12-27 04:01:14,125 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:01:14,126 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 04:01:14,126 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316738019] [2019-12-27 04:01:14,126 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 04:01:14,126 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:01:14,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 04:01:14,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 04:01:14,128 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand 4 states. [2019-12-27 04:01:14,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:01:14,142 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2019-12-27 04:01:14,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 04:01:14,143 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 04:01:14,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:01:14,144 INFO L225 Difference]: With dead ends: 11 [2019-12-27 04:01:14,144 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 04:01:14,144 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 04:01:14,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 04:01:14,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 04:01:14,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 04:01:14,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 04:01:14,145 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 04:01:14,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:01:14,146 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 04:01:14,146 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 04:01:14,146 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 04:01:14,147 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 04:01:14,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 04:01:14 BasicIcfg [2019-12-27 04:01:14,151 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 04:01:14,153 INFO L168 Benchmark]: Toolchain (without parser) took 4306.98 ms. Allocated memory was 145.8 MB in the beginning and 245.9 MB in the end (delta: 100.1 MB). Free memory was 101.5 MB in the beginning and 118.0 MB in the end (delta: -16.5 MB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. [2019-12-27 04:01:14,154 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-27 04:01:14,155 INFO L168 Benchmark]: CACSL2BoogieTranslator took 812.70 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 101.3 MB in the beginning and 157.9 MB in the end (delta: -56.7 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. [2019-12-27 04:01:14,156 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.79 ms. Allocated memory is still 202.9 MB. Free memory was 157.9 MB in the beginning and 156.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 04:01:14,157 INFO L168 Benchmark]: Boogie Preprocessor took 28.33 ms. Allocated memory is still 202.9 MB. Free memory was 156.0 MB in the beginning and 154.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-27 04:01:14,158 INFO L168 Benchmark]: RCFGBuilder took 467.04 ms. Allocated memory is still 202.9 MB. Free memory was 154.0 MB in the beginning and 133.5 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2019-12-27 04:01:14,159 INFO L168 Benchmark]: TraceAbstraction took 2930.56 ms. Allocated memory was 202.9 MB in the beginning and 245.9 MB in the end (delta: 43.0 MB). Free memory was 133.5 MB in the beginning and 118.0 MB in the end (delta: 15.5 MB). Peak memory consumption was 58.5 MB. Max. memory is 7.1 GB. [2019-12-27 04:01:14,164 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 812.70 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 101.3 MB in the beginning and 157.9 MB in the end (delta: -56.7 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 62.79 ms. Allocated memory is still 202.9 MB. Free memory was 157.9 MB in the beginning and 156.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.33 ms. Allocated memory is still 202.9 MB. Free memory was 156.0 MB in the beginning and 154.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 467.04 ms. Allocated memory is still 202.9 MB. Free memory was 154.0 MB in the beginning and 133.5 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2930.56 ms. Allocated memory was 202.9 MB in the beginning and 245.9 MB in the end (delta: 43.0 MB). Free memory was 133.5 MB in the beginning and 118.0 MB in the end (delta: 15.5 MB). Peak memory consumption was 58.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 63 ProgramPointsBefore, 21 ProgramPointsAfterwards, 54 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 230 VarBasedMoverChecksPositive, 11 VarBasedMoverChecksNegative, 1 SemBasedMoverChecksPositive, 12 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 467 CheckedPairsTotal, 44 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: 2.8s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 64 SDtfs, 38 SDslu, 49 SDs, 0 SdLazy, 48 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s 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, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 1459 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...