./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe004_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a0627cd5-75b8-44b7-9166-bc89883b2a2d/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a0627cd5-75b8-44b7-9166-bc89883b2a2d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a0627cd5-75b8-44b7-9166-bc89883b2a2d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a0627cd5-75b8-44b7-9166-bc89883b2a2d/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe004_tso.oepc.i -s /tmp/vcloud-vcloud-master/worker/working_dir_a0627cd5-75b8-44b7-9166-bc89883b2a2d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a0627cd5-75b8-44b7-9166-bc89883b2a2d/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash edbfe2834862f0e19845e65e92fc5a7908c99af3 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:58:56,967 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:58:56,969 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:58:56,980 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:58:56,981 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:58:56,982 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:58:56,983 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:58:56,985 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:58:56,987 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:58:56,988 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:58:56,989 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:58:56,990 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:58:56,990 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:58:56,991 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:58:56,992 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:58:56,993 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:58:56,994 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:58:56,995 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:58:56,996 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:58:56,998 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:58:56,999 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:58:57,000 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:58:57,002 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:58:57,002 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:58:57,005 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:58:57,005 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:58:57,005 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:58:57,006 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:58:57,007 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:58:57,007 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:58:57,008 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:58:57,008 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:58:57,009 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:58:57,010 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:58:57,011 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:58:57,012 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:58:57,012 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:58:57,012 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:58:57,013 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:58:57,013 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:58:57,014 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:58:57,015 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a0627cd5-75b8-44b7-9166-bc89883b2a2d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:58:57,027 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:58:57,027 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:58:57,028 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:58:57,028 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:58:57,029 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:58:57,029 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:58:57,029 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:58:57,029 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:58:57,029 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:58:57,030 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:58:57,030 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:58:57,030 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:58:57,030 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:58:57,030 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:58:57,031 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:58:57,031 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:58:57,031 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:58:57,031 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:58:57,031 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:58:57,032 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:58:57,032 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:58:57,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:58:57,032 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:58:57,032 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:58:57,033 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:58:57,033 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:58:57,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:58:57,034 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:58:57,034 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_a0627cd5-75b8-44b7-9166-bc89883b2a2d/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> edbfe2834862f0e19845e65e92fc5a7908c99af3 [2019-10-22 08:58:57,066 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:58:57,076 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:58:57,080 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:58:57,082 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:58:57,083 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:58:57,083 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a0627cd5-75b8-44b7-9166-bc89883b2a2d/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe004_tso.oepc.i [2019-10-22 08:58:57,131 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a0627cd5-75b8-44b7-9166-bc89883b2a2d/bin/uautomizer/data/064027a04/78cf9d40be90446b8fe5ff5055cf76bb/FLAG03c84fef0 [2019-10-22 08:58:57,577 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:58:57,577 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a0627cd5-75b8-44b7-9166-bc89883b2a2d/sv-benchmarks/c/pthread-wmm/safe004_tso.oepc.i [2019-10-22 08:58:57,589 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a0627cd5-75b8-44b7-9166-bc89883b2a2d/bin/uautomizer/data/064027a04/78cf9d40be90446b8fe5ff5055cf76bb/FLAG03c84fef0 [2019-10-22 08:58:57,604 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a0627cd5-75b8-44b7-9166-bc89883b2a2d/bin/uautomizer/data/064027a04/78cf9d40be90446b8fe5ff5055cf76bb [2019-10-22 08:58:57,606 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:58:57,608 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:58:57,609 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:57,609 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:58:57,614 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:58:57,614 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:57" (1/1) ... [2019-10-22 08:58:57,617 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4488dcf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:57, skipping insertion in model container [2019-10-22 08:58:57,617 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:57" (1/1) ... [2019-10-22 08:58:57,623 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:58:57,670 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:58:58,071 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:58,089 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:58:58,131 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:58,192 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:58:58,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:58 WrapperNode [2019-10-22 08:58:58,193 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:58,194 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:58:58,194 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:58:58,194 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:58:58,202 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:58" (1/1) ... [2019-10-22 08:58:58,219 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:58" (1/1) ... [2019-10-22 08:58:58,238 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:58:58,238 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:58:58,239 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:58:58,239 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:58:58,246 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:58" (1/1) ... [2019-10-22 08:58:58,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:58" (1/1) ... [2019-10-22 08:58:58,249 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:58" (1/1) ... [2019-10-22 08:58:58,249 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:58" (1/1) ... [2019-10-22 08:58:58,254 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:58" (1/1) ... [2019-10-22 08:58:58,262 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:58" (1/1) ... [2019-10-22 08:58:58,263 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:58" (1/1) ... [2019-10-22 08:58:58,266 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:58:58,266 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:58:58,266 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:58:58,266 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:58:58,267 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a0627cd5-75b8-44b7-9166-bc89883b2a2d/bin/uautomizer/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 [2019-10-22 08:58:58,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 08:58:58,322 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-10-22 08:58:58,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:58:58,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:58:58,323 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-10-22 08:58:58,323 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-10-22 08:58:58,323 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-10-22 08:58:58,323 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-10-22 08:58:58,323 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-10-22 08:58:58,323 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-10-22 08:58:58,324 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-10-22 08:58:58,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:58:58,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:58:58,326 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-10-22 08:58:58,583 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:58:58,583 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-22 08:58:58,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:58 BoogieIcfgContainer [2019-10-22 08:58:58,584 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:58:58,585 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:58:58,585 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:58:58,588 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:58:58,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:58:57" (1/3) ... [2019-10-22 08:58:58,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aa4a032 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:58:58, skipping insertion in model container [2019-10-22 08:58:58,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:58" (2/3) ... [2019-10-22 08:58:58,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aa4a032 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:58:58, skipping insertion in model container [2019-10-22 08:58:58,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:58" (3/3) ... [2019-10-22 08:58:58,591 INFO L109 eAbstractionObserver]: Analyzing ICFG safe004_tso.oepc.i [2019-10-22 08:58:58,638 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:58,639 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:58,639 WARN L315 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:58,639 WARN L315 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:58,641 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:58,641 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:58,641 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:58,642 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:58,643 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:58,643 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:58,643 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:58,643 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:58,643 WARN L315 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:58,644 WARN L315 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:58,644 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:58,644 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:58,644 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:58,644 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:58,645 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:58,645 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:58,645 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:58,647 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:58,647 WARN L315 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:58,647 WARN L315 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:58,648 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:58,648 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:58,649 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:58,649 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:58,650 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:58,650 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:58,662 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-10-22 08:58:58,663 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:58:58,669 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:58:58,677 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:58:58,695 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:58:58,695 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:58:58,695 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:58:58,696 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:58:58,696 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:58:58,696 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:58:58,696 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:58:58,696 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:58:58,705 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 55 places, 52 transitions [2019-10-22 08:58:58,858 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2384 states. [2019-10-22 08:58:58,860 INFO L276 IsEmpty]: Start isEmpty. Operand 2384 states. [2019-10-22 08:58:58,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-22 08:58:58,875 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:58,876 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:58,878 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:58,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:58,883 INFO L82 PathProgramCache]: Analyzing trace with hash 1031676120, now seen corresponding path program 1 times [2019-10-22 08:58:58,889 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:58,889 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377538188] [2019-10-22 08:58:58,890 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:58,890 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:58,890 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:59,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:59,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:59,179 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377538188] [2019-10-22 08:58:59,179 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:59,180 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:58:59,180 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197477218] [2019-10-22 08:58:59,184 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:58:59,185 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:59,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:58:59,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:58:59,198 INFO L87 Difference]: Start difference. First operand 2384 states. Second operand 4 states. [2019-10-22 08:58:59,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:59,302 INFO L93 Difference]: Finished difference Result 2492 states and 8068 transitions. [2019-10-22 08:58:59,302 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:58:59,303 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2019-10-22 08:58:59,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:59,326 INFO L225 Difference]: With dead ends: 2492 [2019-10-22 08:58:59,326 INFO L226 Difference]: Without dead ends: 1127 [2019-10-22 08:58:59,328 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:58:59,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2019-10-22 08:58:59,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 1127. [2019-10-22 08:58:59,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1127 states. [2019-10-22 08:58:59,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1127 states to 1127 states and 3557 transitions. [2019-10-22 08:58:59,439 INFO L78 Accepts]: Start accepts. Automaton has 1127 states and 3557 transitions. Word has length 29 [2019-10-22 08:58:59,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:59,439 INFO L462 AbstractCegarLoop]: Abstraction has 1127 states and 3557 transitions. [2019-10-22 08:58:59,439 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:58:59,439 INFO L276 IsEmpty]: Start isEmpty. Operand 1127 states and 3557 transitions. [2019-10-22 08:58:59,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-22 08:58:59,443 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:59,443 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:59,443 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:59,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:59,444 INFO L82 PathProgramCache]: Analyzing trace with hash -1790148292, now seen corresponding path program 1 times [2019-10-22 08:58:59,444 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:59,444 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494154947] [2019-10-22 08:58:59,444 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:59,444 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:59,445 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:59,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:59,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:59,575 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494154947] [2019-10-22 08:58:59,575 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:59,575 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:58:59,576 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479829209] [2019-10-22 08:58:59,577 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:58:59,578 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:59,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:58:59,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:58:59,579 INFO L87 Difference]: Start difference. First operand 1127 states and 3557 transitions. Second operand 5 states. [2019-10-22 08:58:59,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:59,661 INFO L93 Difference]: Finished difference Result 1167 states and 3551 transitions. [2019-10-22 08:58:59,661 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:58:59,661 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2019-10-22 08:58:59,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:59,669 INFO L225 Difference]: With dead ends: 1167 [2019-10-22 08:58:59,669 INFO L226 Difference]: Without dead ends: 1043 [2019-10-22 08:58:59,670 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-22 08:58:59,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2019-10-22 08:58:59,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 1043. [2019-10-22 08:58:59,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1043 states. [2019-10-22 08:58:59,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1043 states to 1043 states and 3242 transitions. [2019-10-22 08:58:59,714 INFO L78 Accepts]: Start accepts. Automaton has 1043 states and 3242 transitions. Word has length 30 [2019-10-22 08:58:59,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:59,714 INFO L462 AbstractCegarLoop]: Abstraction has 1043 states and 3242 transitions. [2019-10-22 08:58:59,714 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:58:59,714 INFO L276 IsEmpty]: Start isEmpty. Operand 1043 states and 3242 transitions. [2019-10-22 08:58:59,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-22 08:58:59,717 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:59,717 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:59,720 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:59,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:59,720 INFO L82 PathProgramCache]: Analyzing trace with hash -85432878, now seen corresponding path program 1 times [2019-10-22 08:58:59,720 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:59,721 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902852482] [2019-10-22 08:58:59,721 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:59,721 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:59,721 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:59,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:59,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:59,862 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902852482] [2019-10-22 08:58:59,862 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:59,862 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 08:58:59,863 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275109209] [2019-10-22 08:58:59,863 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 08:58:59,863 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:59,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 08:58:59,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:58:59,864 INFO L87 Difference]: Start difference. First operand 1043 states and 3242 transitions. Second operand 6 states. [2019-10-22 08:58:59,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:59,963 INFO L93 Difference]: Finished difference Result 819 states and 2378 transitions. [2019-10-22 08:58:59,964 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 08:58:59,964 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2019-10-22 08:58:59,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:59,968 INFO L225 Difference]: With dead ends: 819 [2019-10-22 08:58:59,968 INFO L226 Difference]: Without dead ends: 707 [2019-10-22 08:58:59,968 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:58:59,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2019-10-22 08:58:59,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 707. [2019-10-22 08:58:59,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 707 states. [2019-10-22 08:58:59,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 2066 transitions. [2019-10-22 08:58:59,992 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 2066 transitions. Word has length 31 [2019-10-22 08:58:59,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:59,992 INFO L462 AbstractCegarLoop]: Abstraction has 707 states and 2066 transitions. [2019-10-22 08:58:59,992 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 08:58:59,992 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 2066 transitions. [2019-10-22 08:58:59,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-22 08:58:59,994 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:59,995 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:59,995 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:59,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:59,995 INFO L82 PathProgramCache]: Analyzing trace with hash -213907760, now seen corresponding path program 1 times [2019-10-22 08:58:59,995 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:59,996 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563151170] [2019-10-22 08:58:59,996 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:59,996 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:59,996 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:00,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:00,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:59:00,118 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563151170] [2019-10-22 08:59:00,118 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:59:00,118 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 08:59:00,118 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610394086] [2019-10-22 08:59:00,119 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 08:59:00,119 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:00,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 08:59:00,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:59:00,120 INFO L87 Difference]: Start difference. First operand 707 states and 2066 transitions. Second operand 6 states. [2019-10-22 08:59:00,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:00,215 INFO L93 Difference]: Finished difference Result 1171 states and 3450 transitions. [2019-10-22 08:59:00,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:59:00,216 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-10-22 08:59:00,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:59:00,219 INFO L225 Difference]: With dead ends: 1171 [2019-10-22 08:59:00,220 INFO L226 Difference]: Without dead ends: 655 [2019-10-22 08:59:00,220 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:59:00,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2019-10-22 08:59:00,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 655. [2019-10-22 08:59:00,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 655 states. [2019-10-22 08:59:00,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 1930 transitions. [2019-10-22 08:59:00,241 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 1930 transitions. Word has length 32 [2019-10-22 08:59:00,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:00,241 INFO L462 AbstractCegarLoop]: Abstraction has 655 states and 1930 transitions. [2019-10-22 08:59:00,241 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 08:59:00,242 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 1930 transitions. [2019-10-22 08:59:00,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-22 08:59:00,243 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:00,243 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:59:00,243 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:59:00,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:00,244 INFO L82 PathProgramCache]: Analyzing trace with hash -1910116666, now seen corresponding path program 2 times [2019-10-22 08:59:00,244 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:00,244 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849489204] [2019-10-22 08:59:00,244 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:00,245 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:00,245 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:00,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:00,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:59:00,394 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849489204] [2019-10-22 08:59:00,394 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:59:00,394 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 08:59:00,395 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173303612] [2019-10-22 08:59:00,395 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 08:59:00,395 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:00,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 08:59:00,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 08:59:00,396 INFO L87 Difference]: Start difference. First operand 655 states and 1930 transitions. Second operand 7 states. [2019-10-22 08:59:00,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:00,600 INFO L93 Difference]: Finished difference Result 527 states and 1514 transitions. [2019-10-22 08:59:00,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 08:59:00,601 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 32 [2019-10-22 08:59:00,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:59:00,604 INFO L225 Difference]: With dead ends: 527 [2019-10-22 08:59:00,604 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 08:59:00,604 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-10-22 08:59:00,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 08:59:00,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 08:59:00,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 08:59:00,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 08:59:00,605 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2019-10-22 08:59:00,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:00,606 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:59:00,606 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 08:59:00,606 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:59:00,606 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 08:59:00,609 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-10-22 08:59:00,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:59:00 BasicIcfg [2019-10-22 08:59:00,616 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:59:00,616 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:59:00,616 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:59:00,617 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:59:00,618 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:58" (3/4) ... [2019-10-22 08:59:00,622 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 08:59:00,629 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-10-22 08:59:00,629 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-10-22 08:59:00,630 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-10-22 08:59:00,635 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-10-22 08:59:00,635 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-10-22 08:59:00,680 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a0627cd5-75b8-44b7-9166-bc89883b2a2d/bin/uautomizer/witness.graphml [2019-10-22 08:59:00,680 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:59:00,682 INFO L168 Benchmark]: Toolchain (without parser) took 3073.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.6 MB). Free memory was 938.0 MB in the beginning and 863.1 MB in the end (delta: 74.9 MB). Peak memory consumption was 238.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:00,682 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:59:00,683 INFO L168 Benchmark]: CACSL2BoogieTranslator took 584.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.6 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -187.3 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:00,683 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.39 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:59:00,683 INFO L168 Benchmark]: Boogie Preprocessor took 27.37 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:59:00,683 INFO L168 Benchmark]: RCFGBuilder took 318.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:00,684 INFO L168 Benchmark]: TraceAbstraction took 2030.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 863.1 MB in the end (delta: 233.7 MB). Peak memory consumption was 233.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:00,684 INFO L168 Benchmark]: Witness Printer took 63.60 ms. Allocated memory is still 1.2 GB. Free memory is still 863.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:59:00,689 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 584.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.6 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -187.3 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 44.39 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.37 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 318.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2030.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 863.1 MB in the end (delta: 233.7 MB). Peak memory consumption was 233.7 MB. Max. memory is 11.5 GB. * Witness Printer took 63.60 ms. Allocated memory is still 1.2 GB. Free memory is still 863.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 70 locations, 1 error locations. Result: SAFE, OverallTime: 1.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 269 SDtfs, 330 SDslu, 613 SDs, 0 SdLazy, 84 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2384occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 154 NumberOfCodeBlocks, 154 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 149 ConstructedInterpolants, 0 QuantifiedInterpolants, 12695 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...