/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/safe035_rmo.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 19:10:19,018 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 19:10:19,021 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 19:10:19,038 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 19:10:19,039 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 19:10:19,041 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 19:10:19,043 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 19:10:19,046 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 19:10:19,048 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 19:10:19,049 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 19:10:19,050 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 19:10:19,051 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 19:10:19,051 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 19:10:19,052 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 19:10:19,053 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 19:10:19,054 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 19:10:19,057 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 19:10:19,058 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 19:10:19,063 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 19:10:19,065 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 19:10:19,066 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 19:10:19,067 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 19:10:19,068 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 19:10:19,069 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 19:10:19,071 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-18 19:10:19,072 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-18 19:10:19,072 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-18 19:10:19,073 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-18 19:10:19,073 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-18 19:10:19,074 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-18 19:10:19,074 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 19:10:19,075 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 19:10:19,076 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 19:10:19,076 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 19:10:19,077 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 19:10:19,078 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 19:10:19,078 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 19:10:19,078 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 19:10:19,079 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 19:10:19,081 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 19:10:19,082 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 19:10:19,084 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 [2019-12-18 19:10:19,097 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 19:10:19,098 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 19:10:19,099 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 19:10:19,099 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 19:10:19,099 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 19:10:19,100 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 19:10:19,100 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 19:10:19,100 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 19:10:19,100 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 19:10:19,100 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 19:10:19,101 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 19:10:19,101 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 19:10:19,101 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 19:10:19,101 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 19:10:19,101 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 19:10:19,101 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 19:10:19,102 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 19:10:19,102 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 19:10:19,102 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 19:10:19,102 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 19:10:19,102 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 19:10:19,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 19:10:19,103 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 19:10:19,103 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 19:10:19,103 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 19:10:19,103 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 19:10:19,104 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 19:10:19,104 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 19:10:19,104 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 19:10:19,373 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 19:10:19,390 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 19:10:19,393 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 19:10:19,394 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 19:10:19,395 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 19:10:19,396 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe035_rmo.oepc.i [2019-12-18 19:10:19,471 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9aad1829d/ace841c73b684ad8bfa9d4e983b8c993/FLAG32acf57aa [2019-12-18 19:10:20,031 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 19:10:20,033 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_rmo.oepc.i [2019-12-18 19:10:20,047 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9aad1829d/ace841c73b684ad8bfa9d4e983b8c993/FLAG32acf57aa [2019-12-18 19:10:20,374 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9aad1829d/ace841c73b684ad8bfa9d4e983b8c993 [2019-12-18 19:10:20,383 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 19:10:20,385 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 19:10:20,386 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 19:10:20,386 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 19:10:20,389 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 19:10:20,390 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 07:10:20" (1/1) ... [2019-12-18 19:10:20,393 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74d6a597 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:10:20, skipping insertion in model container [2019-12-18 19:10:20,394 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 07:10:20" (1/1) ... [2019-12-18 19:10:20,401 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 19:10:20,463 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 19:10:20,949 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 19:10:20,962 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 19:10:21,031 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 19:10:21,123 INFO L208 MainTranslator]: Completed translation [2019-12-18 19:10:21,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:10:21 WrapperNode [2019-12-18 19:10:21,124 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 19:10:21,125 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 19:10:21,125 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 19:10:21,125 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 19:10:21,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:10:21" (1/1) ... [2019-12-18 19:10:21,165 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:10:21" (1/1) ... [2019-12-18 19:10:21,191 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 19:10:21,192 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 19:10:21,192 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 19:10:21,192 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 19:10:21,200 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:10:21" (1/1) ... [2019-12-18 19:10:21,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:10:21" (1/1) ... [2019-12-18 19:10:21,204 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:10:21" (1/1) ... [2019-12-18 19:10:21,205 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:10:21" (1/1) ... [2019-12-18 19:10:21,211 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:10:21" (1/1) ... [2019-12-18 19:10:21,214 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:10:21" (1/1) ... [2019-12-18 19:10:21,219 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:10:21" (1/1) ... [2019-12-18 19:10:21,222 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 19:10:21,223 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 19:10:21,223 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 19:10:21,223 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 19:10:21,224 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:10:21" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 19:10:21,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 19:10:21,290 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-18 19:10:21,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 19:10:21,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 19:10:21,290 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-18 19:10:21,291 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-18 19:10:21,291 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-18 19:10:21,292 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-18 19:10:21,292 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-18 19:10:21,292 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-18 19:10:21,292 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-18 19:10:21,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 19:10:21,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 19:10:21,295 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-18 19:10:21,670 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 19:10:21,670 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-18 19:10:21,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 07:10:21 BoogieIcfgContainer [2019-12-18 19:10:21,672 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 19:10:21,674 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 19:10:21,674 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 19:10:21,677 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 19:10:21,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 07:10:20" (1/3) ... [2019-12-18 19:10:21,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a18db2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 07:10:21, skipping insertion in model container [2019-12-18 19:10:21,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:10:21" (2/3) ... [2019-12-18 19:10:21,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a18db2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 07:10:21, skipping insertion in model container [2019-12-18 19:10:21,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 07:10:21" (3/3) ... [2019-12-18 19:10:21,681 INFO L109 eAbstractionObserver]: Analyzing ICFG safe035_rmo.oepc.i [2019-12-18 19:10:21,691 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 19:10:21,692 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 19:10:21,700 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 19:10:21,701 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 19:10:21,729 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:21,729 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:21,730 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:21,730 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:21,731 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:21,731 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:21,731 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:21,732 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:21,732 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:21,732 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:21,733 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:21,733 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:21,733 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:21,734 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:21,734 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:21,734 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:21,734 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:21,735 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:21,738 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:21,739 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:21,739 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:21,739 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:21,746 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:21,746 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:21,747 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:21,747 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:21,749 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:21,750 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:21,750 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:21,750 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:21,767 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 19:10:21,789 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 19:10:21,789 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 19:10:21,790 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 19:10:21,790 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 19:10:21,790 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 19:10:21,790 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 19:10:21,790 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 19:10:21,790 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 19:10:21,804 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-18 19:10:21,807 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-18 19:10:21,848 INFO L126 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-18 19:10:21,848 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 19:10:21,855 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 9/58 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 19:10:21,859 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-18 19:10:21,876 INFO L126 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-18 19:10:21,876 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 19:10:21,878 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 9/58 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 19:10:21,880 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-18 19:10:21,881 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 19:10:23,510 INFO L206 etLargeBlockEncoding]: Checked pairs total: 429 [2019-12-18 19:10:23,510 INFO L214 etLargeBlockEncoding]: Total number of compositions: 46 [2019-12-18 19:10:23,514 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-18 19:10:23,524 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-18 19:10:23,527 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-18 19:10:23,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 19:10:23,536 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:10:23,537 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:10:23,537 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:10:23,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:10:23,543 INFO L82 PathProgramCache]: Analyzing trace with hash 1861325362, now seen corresponding path program 1 times [2019-12-18 19:10:23,553 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:10:23,553 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899035346] [2019-12-18 19:10:23,553 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:10:23,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:10:23,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 19:10:23,765 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899035346] [2019-12-18 19:10:23,766 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:10:23,766 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 19:10:23,767 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382322157] [2019-12-18 19:10:23,772 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 19:10:23,772 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:10:23,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 19:10:23,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:10:23,791 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-18 19:10:23,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:10:23,827 INFO L93 Difference]: Finished difference Result 42 states and 84 transitions. [2019-12-18 19:10:23,828 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 19:10:23,829 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-18 19:10:23,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:10:23,841 INFO L225 Difference]: With dead ends: 42 [2019-12-18 19:10:23,841 INFO L226 Difference]: Without dead ends: 34 [2019-12-18 19:10:23,843 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:10:23,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-18 19:10:23,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-18 19:10:23,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-18 19:10:23,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-18 19:10:23,882 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-18 19:10:23,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:10:23,883 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-18 19:10:23,883 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 19:10:23,883 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-18 19:10:23,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 19:10:23,884 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:10:23,884 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:10:23,885 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:10:23,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:10:23,885 INFO L82 PathProgramCache]: Analyzing trace with hash 1866511351, now seen corresponding path program 1 times [2019-12-18 19:10:23,885 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:10:23,886 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430812884] [2019-12-18 19:10:23,886 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:10:23,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:10:23,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 19:10:23,941 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430812884] [2019-12-18 19:10:23,941 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:10:23,941 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 19:10:23,941 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446542893] [2019-12-18 19:10:23,943 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 19:10:23,944 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:10:23,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 19:10:23,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:10:23,945 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 3 states. [2019-12-18 19:10:23,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:10:23,963 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-18 19:10:23,963 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 19:10:23,963 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-18 19:10:23,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:10:23,964 INFO L225 Difference]: With dead ends: 36 [2019-12-18 19:10:23,964 INFO L226 Difference]: Without dead ends: 22 [2019-12-18 19:10:23,965 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:10:23,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-12-18 19:10:23,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-12-18 19:10:23,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-12-18 19:10:23,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 33 transitions. [2019-12-18 19:10:23,970 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 33 transitions. Word has length 9 [2019-12-18 19:10:23,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:10:23,970 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 33 transitions. [2019-12-18 19:10:23,970 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 19:10:23,971 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2019-12-18 19:10:23,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 19:10:23,971 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:10:23,971 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:10:23,972 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:10:23,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:10:23,972 INFO L82 PathProgramCache]: Analyzing trace with hash 2027276793, now seen corresponding path program 1 times [2019-12-18 19:10:23,972 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:10:23,973 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519423008] [2019-12-18 19:10:23,973 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:10:24,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:10:24,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 19:10:24,169 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519423008] [2019-12-18 19:10:24,169 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:10:24,169 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 19:10:24,170 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768392507] [2019-12-18 19:10:24,170 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-18 19:10:24,170 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:10:24,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-18 19:10:24,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-18 19:10:24,171 INFO L87 Difference]: Start difference. First operand 22 states and 33 transitions. Second operand 5 states. [2019-12-18 19:10:24,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:10:24,215 INFO L93 Difference]: Finished difference Result 25 states and 35 transitions. [2019-12-18 19:10:24,215 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-18 19:10:24,215 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-12-18 19:10:24,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:10:24,216 INFO L225 Difference]: With dead ends: 25 [2019-12-18 19:10:24,216 INFO L226 Difference]: Without dead ends: 19 [2019-12-18 19:10:24,217 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-18 19:10:24,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-12-18 19:10:24,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-12-18 19:10:24,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-12-18 19:10:24,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 25 transitions. [2019-12-18 19:10:24,220 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 25 transitions. Word has length 10 [2019-12-18 19:10:24,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:10:24,221 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 25 transitions. [2019-12-18 19:10:24,221 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-18 19:10:24,221 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2019-12-18 19:10:24,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 19:10:24,221 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:10:24,222 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:10:24,222 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:10:24,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:10:24,222 INFO L82 PathProgramCache]: Analyzing trace with hash 2029948683, now seen corresponding path program 2 times [2019-12-18 19:10:24,223 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:10:24,223 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851466532] [2019-12-18 19:10:24,223 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:10:24,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:10:24,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 19:10:24,327 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851466532] [2019-12-18 19:10:24,327 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:10:24,327 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-18 19:10:24,327 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700377353] [2019-12-18 19:10:24,328 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-18 19:10:24,328 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:10:24,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-18 19:10:24,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-18 19:10:24,329 INFO L87 Difference]: Start difference. First operand 19 states and 25 transitions. Second operand 6 states. [2019-12-18 19:10:24,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:10:24,408 INFO L93 Difference]: Finished difference Result 19 states and 23 transitions. [2019-12-18 19:10:24,409 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-18 19:10:24,409 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-12-18 19:10:24,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:10:24,409 INFO L225 Difference]: With dead ends: 19 [2019-12-18 19:10:24,410 INFO L226 Difference]: Without dead ends: 16 [2019-12-18 19:10:24,410 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-18 19:10:24,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-12-18 19:10:24,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-12-18 19:10:24,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-12-18 19:10:24,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2019-12-18 19:10:24,413 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 10 [2019-12-18 19:10:24,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:10:24,414 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2019-12-18 19:10:24,414 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-18 19:10:24,414 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2019-12-18 19:10:24,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 19:10:24,415 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:10:24,415 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:10:24,415 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:10:24,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:10:24,416 INFO L82 PathProgramCache]: Analyzing trace with hash -1498585343, now seen corresponding path program 1 times [2019-12-18 19:10:24,416 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:10:24,416 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366378741] [2019-12-18 19:10:24,417 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:10:24,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:10:24,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 19:10:24,455 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366378741] [2019-12-18 19:10:24,456 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:10:24,456 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 19:10:24,456 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480136564] [2019-12-18 19:10:24,456 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 19:10:24,457 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:10:24,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 19:10:24,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 19:10:24,458 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand 4 states. [2019-12-18 19:10:24,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:10:24,479 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2019-12-18 19:10:24,480 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 19:10:24,480 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-18 19:10:24,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:10:24,481 INFO L225 Difference]: With dead ends: 18 [2019-12-18 19:10:24,481 INFO L226 Difference]: Without dead ends: 12 [2019-12-18 19:10:24,481 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-18 19:10:24,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-12-18 19:10:24,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-12-18 19:10:24,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-12-18 19:10:24,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2019-12-18 19:10:24,484 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 11 [2019-12-18 19:10:24,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:10:24,484 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2019-12-18 19:10:24,484 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 19:10:24,484 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2019-12-18 19:10:24,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 19:10:24,485 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:10:24,485 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:10:24,485 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:10:24,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:10:24,486 INFO L82 PathProgramCache]: Analyzing trace with hash -1496019473, now seen corresponding path program 2 times [2019-12-18 19:10:24,486 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:10:24,486 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148180502] [2019-12-18 19:10:24,486 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:10:24,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:10:24,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 19:10:24,537 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148180502] [2019-12-18 19:10:24,537 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:10:24,537 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 19:10:24,537 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037207641] [2019-12-18 19:10:24,538 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 19:10:24,538 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:10:24,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 19:10:24,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 19:10:24,539 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand 4 states. [2019-12-18 19:10:24,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:10:24,562 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2019-12-18 19:10:24,562 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 19:10:24,563 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-18 19:10:24,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:10:24,564 INFO L225 Difference]: With dead ends: 11 [2019-12-18 19:10:24,564 INFO L226 Difference]: Without dead ends: 0 [2019-12-18 19:10:24,564 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-18 19:10:24,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-18 19:10:24,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-18 19:10:24,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-18 19:10:24,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-18 19:10:24,565 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-18 19:10:24,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:10:24,565 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-18 19:10:24,566 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 19:10:24,566 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-18 19:10:24,566 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-18 19:10:24,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 07:10:24 BasicIcfg [2019-12-18 19:10:24,573 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 19:10:24,578 INFO L168 Benchmark]: Toolchain (without parser) took 4191.08 ms. Allocated memory was 145.8 MB in the beginning and 245.9 MB in the end (delta: 100.1 MB). Free memory was 102.3 MB in the beginning and 104.6 MB in the end (delta: -2.3 MB). Peak memory consumption was 97.8 MB. Max. memory is 7.1 GB. [2019-12-18 19:10:24,579 INFO L168 Benchmark]: CDTParser took 0.78 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: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-18 19:10:24,584 INFO L168 Benchmark]: CACSL2BoogieTranslator took 738.70 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 102.1 MB in the beginning and 157.6 MB in the end (delta: -55.5 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2019-12-18 19:10:24,585 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.76 ms. Allocated memory is still 202.4 MB. Free memory was 157.0 MB in the beginning and 155.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-18 19:10:24,585 INFO L168 Benchmark]: Boogie Preprocessor took 30.85 ms. Allocated memory is still 202.4 MB. Free memory was 155.0 MB in the beginning and 153.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-18 19:10:24,588 INFO L168 Benchmark]: RCFGBuilder took 449.59 ms. Allocated memory is still 202.4 MB. Free memory was 153.7 MB in the beginning and 133.0 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2019-12-18 19:10:24,588 INFO L168 Benchmark]: TraceAbstraction took 2899.61 ms. Allocated memory was 202.4 MB in the beginning and 245.9 MB in the end (delta: 43.5 MB). Free memory was 132.4 MB in the beginning and 104.6 MB in the end (delta: 27.7 MB). Peak memory consumption was 71.2 MB. Max. memory is 7.1 GB. [2019-12-18 19:10:24,596 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.78 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: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 738.70 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 102.1 MB in the beginning and 157.6 MB in the end (delta: -55.5 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 66.76 ms. Allocated memory is still 202.4 MB. Free memory was 157.0 MB in the beginning and 155.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.85 ms. Allocated memory is still 202.4 MB. Free memory was 155.0 MB in the beginning and 153.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 449.59 ms. Allocated memory is still 202.4 MB. Free memory was 153.7 MB in the beginning and 133.0 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2899.61 ms. Allocated memory was 202.4 MB in the beginning and 245.9 MB in the end (delta: 43.5 MB). Free memory was 132.4 MB in the beginning and 104.6 MB in the end (delta: 27.7 MB). Peak memory consumption was 71.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.7s, 63 ProgramPointsBefore, 21 ProgramPointsAfterwards, 54 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 223 VarBasedMoverChecksPositive, 12 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 15 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 429 CheckedPairsTotal, 46 TotalNumberOfCompositions - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 61 SDtfs, 35 SDslu, 48 SDs, 0 SdLazy, 52 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s 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, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 53 ConstructedInterpolants, 0 QuantifiedInterpolants, 1314 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...