./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe019_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_954c3742-582e-4921-92ef-efc397024370/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_954c3742-582e-4921-92ef-efc397024370/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_954c3742-582e-4921-92ef-efc397024370/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_954c3742-582e-4921-92ef-efc397024370/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe019_tso.oepc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_954c3742-582e-4921-92ef-efc397024370/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_954c3742-582e-4921-92ef-efc397024370/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 8e1f858a9fc193a77b37a819841c2627b369b859 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 02:52:40,524 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 02:52:40,526 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 02:52:40,538 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 02:52:40,538 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 02:52:40,539 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 02:52:40,541 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 02:52:40,543 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 02:52:40,545 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 02:52:40,546 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 02:52:40,547 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 02:52:40,548 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 02:52:40,548 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 02:52:40,550 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 02:52:40,551 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 02:52:40,553 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 02:52:40,554 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 02:52:40,554 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 02:52:40,556 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 02:52:40,559 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 02:52:40,560 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 02:52:40,561 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 02:52:40,563 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 02:52:40,563 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 02:52:40,566 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 02:52:40,566 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 02:52:40,567 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 02:52:40,567 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 02:52:40,568 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 02:52:40,569 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 02:52:40,569 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 02:52:40,570 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 02:52:40,570 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 02:52:40,571 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 02:52:40,572 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 02:52:40,572 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 02:52:40,573 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 02:52:40,573 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 02:52:40,573 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 02:52:40,574 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 02:52:40,575 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 02:52:40,579 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_954c3742-582e-4921-92ef-efc397024370/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 02:52:40,596 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 02:52:40,596 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 02:52:40,598 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 02:52:40,598 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 02:52:40,598 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 02:52:40,599 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 02:52:40,599 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 02:52:40,599 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 02:52:40,599 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 02:52:40,600 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 02:52:40,601 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 02:52:40,601 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 02:52:40,601 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 02:52:40,601 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 02:52:40,602 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 02:52:40,602 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 02:52:40,602 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 02:52:40,602 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 02:52:40,602 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 02:52:40,603 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 02:52:40,603 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 02:52:40,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 02:52:40,603 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 02:52:40,604 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 02:52:40,604 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 02:52:40,604 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 02:52:40,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 02:52:40,605 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 02:52:40,605 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/run_dir_954c3742-582e-4921-92ef-efc397024370/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 -> 8e1f858a9fc193a77b37a819841c2627b369b859 [2019-11-20 02:52:40,821 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 02:52:40,835 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 02:52:40,839 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 02:52:40,840 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 02:52:40,840 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 02:52:40,843 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_954c3742-582e-4921-92ef-efc397024370/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe019_tso.oepc.i [2019-11-20 02:52:40,919 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_954c3742-582e-4921-92ef-efc397024370/bin/uautomizer/data/790e98710/a2d97cdfc3d94e59a9f603d5dac21ec3/FLAG40f4e5fc7 [2019-11-20 02:52:41,402 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 02:52:41,405 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_954c3742-582e-4921-92ef-efc397024370/sv-benchmarks/c/pthread-wmm/safe019_tso.oepc.i [2019-11-20 02:52:41,420 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_954c3742-582e-4921-92ef-efc397024370/bin/uautomizer/data/790e98710/a2d97cdfc3d94e59a9f603d5dac21ec3/FLAG40f4e5fc7 [2019-11-20 02:52:41,829 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_954c3742-582e-4921-92ef-efc397024370/bin/uautomizer/data/790e98710/a2d97cdfc3d94e59a9f603d5dac21ec3 [2019-11-20 02:52:41,833 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 02:52:41,834 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 02:52:41,836 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 02:52:41,836 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 02:52:41,840 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 02:52:41,841 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:52:41" (1/1) ... [2019-11-20 02:52:41,843 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1024fb23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:52:41, skipping insertion in model container [2019-11-20 02:52:41,844 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:52:41" (1/1) ... [2019-11-20 02:52:41,851 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 02:52:41,893 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 02:52:42,434 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 02:52:42,449 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 02:52:42,515 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 02:52:42,622 INFO L192 MainTranslator]: Completed translation [2019-11-20 02:52:42,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:52:42 WrapperNode [2019-11-20 02:52:42,623 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 02:52:42,625 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 02:52:42,625 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 02:52:42,625 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 02:52:42,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:52:42" (1/1) ... [2019-11-20 02:52:42,669 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:52:42" (1/1) ... [2019-11-20 02:52:42,700 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 02:52:42,702 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 02:52:42,702 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 02:52:42,702 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 02:52:42,712 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:52:42" (1/1) ... [2019-11-20 02:52:42,713 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:52:42" (1/1) ... [2019-11-20 02:52:42,719 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:52:42" (1/1) ... [2019-11-20 02:52:42,719 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:52:42" (1/1) ... [2019-11-20 02:52:42,735 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:52:42" (1/1) ... [2019-11-20 02:52:42,737 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:52:42" (1/1) ... [2019-11-20 02:52:42,739 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:52:42" (1/1) ... [2019-11-20 02:52:42,742 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 02:52:42,743 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 02:52:42,743 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 02:52:42,743 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 02:52:42,744 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:52:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_954c3742-582e-4921-92ef-efc397024370/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 [2019-11-20 02:52:42,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 02:52:42,832 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-20 02:52:42,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 02:52:42,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 02:52:42,834 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-20 02:52:42,834 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-20 02:52:42,834 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-20 02:52:42,835 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-20 02:52:42,835 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-20 02:52:42,835 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-20 02:52:42,836 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2019-11-20 02:52:42,836 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2019-11-20 02:52:42,836 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-20 02:52:42,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 02:52:42,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 02:52:42,841 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-20 02:52:43,269 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 02:52:43,269 INFO L285 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-20 02:52:43,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:52:43 BoogieIcfgContainer [2019-11-20 02:52:43,270 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 02:52:43,271 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 02:52:43,271 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 02:52:43,273 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 02:52:43,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 02:52:41" (1/3) ... [2019-11-20 02:52:43,274 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78922d18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 02:52:43, skipping insertion in model container [2019-11-20 02:52:43,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:52:42" (2/3) ... [2019-11-20 02:52:43,275 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78922d18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 02:52:43, skipping insertion in model container [2019-11-20 02:52:43,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:52:43" (3/3) ... [2019-11-20 02:52:43,276 INFO L109 eAbstractionObserver]: Analyzing ICFG safe019_tso.oepc.i [2019-11-20 02:52:43,337 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork7_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,337 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork7_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,337 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork7_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,337 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork7_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,338 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork7_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,338 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork7_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,338 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,338 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,338 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,339 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,339 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,339 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,339 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork11_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,340 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork11_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,340 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork11_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,340 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork11_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,340 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork11_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,340 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork11_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,341 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,341 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,342 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,342 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,342 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,342 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,342 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork4_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,343 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork4_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,343 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,343 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,343 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,343 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,344 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,344 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,344 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork8_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,344 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork8_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,344 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,344 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,345 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork9_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,345 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork9_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,345 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork9_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,345 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork9_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,345 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork9_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,346 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork9_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,346 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork5_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,346 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork5_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,346 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,346 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,347 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,347 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,347 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,347 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,347 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,347 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,348 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,348 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,348 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,348 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,349 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,349 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,349 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,349 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,349 WARN L315 ript$VariableManager]: TermVariabe |P3Thread2of3ForFork6_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,349 WARN L315 ript$VariableManager]: TermVariabe |P3Thread2of3ForFork6_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,350 WARN L315 ript$VariableManager]: TermVariabe P3Thread2of3ForFork6_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,350 WARN L315 ript$VariableManager]: TermVariabe P3Thread2of3ForFork6_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,350 WARN L315 ript$VariableManager]: TermVariabe |P3Thread2of3ForFork6_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,350 WARN L315 ript$VariableManager]: TermVariabe |P3Thread2of3ForFork6_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,351 WARN L315 ript$VariableManager]: TermVariabe |P3Thread3of3ForFork10_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,351 WARN L315 ript$VariableManager]: TermVariabe |P3Thread3of3ForFork10_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,351 WARN L315 ript$VariableManager]: TermVariabe P3Thread3of3ForFork10_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,351 WARN L315 ript$VariableManager]: TermVariabe P3Thread3of3ForFork10_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,351 WARN L315 ript$VariableManager]: TermVariabe |P3Thread3of3ForFork10_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,351 WARN L315 ript$VariableManager]: TermVariabe |P3Thread3of3ForFork10_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:52:43,394 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-20 02:52:43,394 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 02:52:43,400 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 02:52:43,410 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 02:52:43,430 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 02:52:43,430 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 02:52:43,430 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 02:52:43,430 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 02:52:43,430 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 02:52:43,431 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 02:52:43,431 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 02:52:43,431 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 02:52:43,444 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 120 places, 92 transitions [2019-11-20 02:59:40,831 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 422272 states. [2019-11-20 02:59:40,834 INFO L276 IsEmpty]: Start isEmpty. Operand 422272 states. [2019-11-20 02:59:41,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-20 02:59:41,123 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:59:41,124 INFO L410 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, 1, 1, 1] [2019-11-20 02:59:41,125 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 02:59:41,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:59:41,133 INFO L82 PathProgramCache]: Analyzing trace with hash 1734521025, now seen corresponding path program 1 times [2019-11-20 02:59:41,143 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:59:41,144 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903292118] [2019-11-20 02:59:41,144 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:59:41,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:59:41,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:59:41,598 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903292118] [2019-11-20 02:59:41,600 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:59:41,600 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 02:59:41,601 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105089606] [2019-11-20 02:59:41,607 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 02:59:41,607 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 02:59:41,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 02:59:41,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-20 02:59:41,626 INFO L87 Difference]: Start difference. First operand 422272 states. Second operand 4 states. [2019-11-20 02:59:44,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:59:44,399 INFO L93 Difference]: Finished difference Result 441469 states and 1720512 transitions. [2019-11-20 02:59:44,400 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 02:59:44,402 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2019-11-20 02:59:44,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:59:47,688 INFO L225 Difference]: With dead ends: 441469 [2019-11-20 02:59:47,688 INFO L226 Difference]: Without dead ends: 172873 [2019-11-20 02:59:47,690 INFO L630 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 [2019-11-20 02:59:49,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172873 states. [2019-11-20 02:59:53,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172873 to 172873. [2019-11-20 02:59:53,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172873 states. [2019-11-20 02:59:53,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172873 states to 172873 states and 667755 transitions. [2019-11-20 02:59:53,920 INFO L78 Accepts]: Start accepts. Automaton has 172873 states and 667755 transitions. Word has length 35 [2019-11-20 02:59:53,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:59:53,922 INFO L462 AbstractCegarLoop]: Abstraction has 172873 states and 667755 transitions. [2019-11-20 02:59:53,922 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 02:59:53,922 INFO L276 IsEmpty]: Start isEmpty. Operand 172873 states and 667755 transitions. [2019-11-20 02:59:54,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-11-20 02:59:54,148 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:59:54,148 INFO L410 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, 1, 1, 1, 1] [2019-11-20 02:59:54,148 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 02:59:54,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:59:54,149 INFO L82 PathProgramCache]: Analyzing trace with hash -2069628597, now seen corresponding path program 1 times [2019-11-20 02:59:54,149 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:59:54,150 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997410481] [2019-11-20 02:59:54,150 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:59:54,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:59:54,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:59:54,337 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997410481] [2019-11-20 02:59:54,337 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:59:54,337 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 02:59:54,337 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751512071] [2019-11-20 02:59:54,339 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 02:59:54,339 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 02:59:54,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 02:59:54,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-20 02:59:54,340 INFO L87 Difference]: Start difference. First operand 172873 states and 667755 transitions. Second operand 5 states. [2019-11-20 03:00:08,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:00:08,847 INFO L93 Difference]: Finished difference Result 186724 states and 698859 transitions. [2019-11-20 03:00:08,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 03:00:08,848 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 36 [2019-11-20 03:00:08,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:00:09,316 INFO L225 Difference]: With dead ends: 186724 [2019-11-20 03:00:09,316 INFO L226 Difference]: Without dead ends: 166069 [2019-11-20 03:00:09,317 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-20 03:00:11,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166069 states. [2019-11-20 03:00:14,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166069 to 166069. [2019-11-20 03:00:14,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166069 states. [2019-11-20 03:00:14,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166069 states to 166069 states and 636003 transitions. [2019-11-20 03:00:14,809 INFO L78 Accepts]: Start accepts. Automaton has 166069 states and 636003 transitions. Word has length 36 [2019-11-20 03:00:14,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:00:14,810 INFO L462 AbstractCegarLoop]: Abstraction has 166069 states and 636003 transitions. [2019-11-20 03:00:14,810 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 03:00:14,810 INFO L276 IsEmpty]: Start isEmpty. Operand 166069 states and 636003 transitions. [2019-11-20 03:00:14,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-11-20 03:00:14,995 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:00:14,996 INFO L410 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, 1, 1, 1, 1, 1] [2019-11-20 03:00:14,996 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 03:00:14,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:00:14,996 INFO L82 PathProgramCache]: Analyzing trace with hash -88806324, now seen corresponding path program 1 times [2019-11-20 03:00:14,996 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:00:14,997 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188756375] [2019-11-20 03:00:14,997 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:00:16,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:00:16,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:00:16,736 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188756375] [2019-11-20 03:00:16,736 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:00:16,736 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-20 03:00:16,736 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404615026] [2019-11-20 03:00:16,737 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 03:00:16,737 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:00:16,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 03:00:16,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-20 03:00:16,738 INFO L87 Difference]: Start difference. First operand 166069 states and 636003 transitions. Second operand 6 states. [2019-11-20 03:00:17,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:00:17,685 INFO L93 Difference]: Finished difference Result 155134 states and 566019 transitions. [2019-11-20 03:00:17,685 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 03:00:17,686 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2019-11-20 03:00:17,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:00:18,454 INFO L225 Difference]: With dead ends: 155134 [2019-11-20 03:00:18,454 INFO L226 Difference]: Without dead ends: 135451 [2019-11-20 03:00:18,455 INFO L630 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 [2019-11-20 03:00:19,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135451 states. [2019-11-20 03:00:23,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135451 to 135451. [2019-11-20 03:00:23,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135451 states. [2019-11-20 03:00:24,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135451 states to 135451 states and 503325 transitions. [2019-11-20 03:00:24,152 INFO L78 Accepts]: Start accepts. Automaton has 135451 states and 503325 transitions. Word has length 37 [2019-11-20 03:00:24,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:00:24,152 INFO L462 AbstractCegarLoop]: Abstraction has 135451 states and 503325 transitions. [2019-11-20 03:00:24,152 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 03:00:24,152 INFO L276 IsEmpty]: Start isEmpty. Operand 135451 states and 503325 transitions. [2019-11-20 03:00:24,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-20 03:00:24,283 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:00:24,283 INFO L410 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, 1, 1, 1, 1, 1, 1] [2019-11-20 03:00:24,284 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 03:00:24,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:00:24,284 INFO L82 PathProgramCache]: Analyzing trace with hash -713070285, now seen corresponding path program 1 times [2019-11-20 03:00:24,284 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:00:24,285 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782297889] [2019-11-20 03:00:24,285 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:00:24,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:00:24,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:00:24,408 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782297889] [2019-11-20 03:00:24,409 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:00:24,409 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-20 03:00:24,409 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746440843] [2019-11-20 03:00:24,409 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 03:00:24,409 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:00:24,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 03:00:24,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-20 03:00:24,410 INFO L87 Difference]: Start difference. First operand 135451 states and 503325 transitions. Second operand 7 states. [2019-11-20 03:00:25,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:00:25,184 INFO L93 Difference]: Finished difference Result 89524 states and 310869 transitions. [2019-11-20 03:00:25,185 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 03:00:25,185 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2019-11-20 03:00:25,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:00:25,359 INFO L225 Difference]: With dead ends: 89524 [2019-11-20 03:00:25,359 INFO L226 Difference]: Without dead ends: 74215 [2019-11-20 03:00:25,360 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2019-11-20 03:00:27,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74215 states. [2019-11-20 03:00:28,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74215 to 74215. [2019-11-20 03:00:28,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74215 states. [2019-11-20 03:00:28,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74215 states to 74215 states and 258381 transitions. [2019-11-20 03:00:28,606 INFO L78 Accepts]: Start accepts. Automaton has 74215 states and 258381 transitions. Word has length 38 [2019-11-20 03:00:28,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:00:28,607 INFO L462 AbstractCegarLoop]: Abstraction has 74215 states and 258381 transitions. [2019-11-20 03:00:28,607 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 03:00:28,607 INFO L276 IsEmpty]: Start isEmpty. Operand 74215 states and 258381 transitions. [2019-11-20 03:00:28,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-11-20 03:00:28,690 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:00:28,690 INFO L410 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, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:00:28,691 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 03:00:28,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:00:28,691 INFO L82 PathProgramCache]: Analyzing trace with hash 1735394096, now seen corresponding path program 1 times [2019-11-20 03:00:28,692 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:00:28,692 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190906638] [2019-11-20 03:00:28,692 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:00:28,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:00:28,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:00:28,840 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190906638] [2019-11-20 03:00:28,841 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:00:28,841 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-20 03:00:28,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676561579] [2019-11-20 03:00:28,842 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 03:00:28,842 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:00:28,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 03:00:28,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-20 03:00:28,842 INFO L87 Difference]: Start difference. First operand 74215 states and 258381 transitions. Second operand 7 states. [2019-11-20 03:00:29,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:00:29,527 INFO L93 Difference]: Finished difference Result 125488 states and 434637 transitions. [2019-11-20 03:00:29,527 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 03:00:29,527 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 39 [2019-11-20 03:00:29,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:00:29,685 INFO L225 Difference]: With dead ends: 125488 [2019-11-20 03:00:29,685 INFO L226 Difference]: Without dead ends: 71479 [2019-11-20 03:00:29,686 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-11-20 03:00:31,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71479 states. [2019-11-20 03:00:32,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71479 to 71479. [2019-11-20 03:00:32,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71479 states. [2019-11-20 03:00:32,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71479 states to 71479 states and 247734 transitions. [2019-11-20 03:00:32,474 INFO L78 Accepts]: Start accepts. Automaton has 71479 states and 247734 transitions. Word has length 39 [2019-11-20 03:00:32,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:00:32,475 INFO L462 AbstractCegarLoop]: Abstraction has 71479 states and 247734 transitions. [2019-11-20 03:00:32,475 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 03:00:32,476 INFO L276 IsEmpty]: Start isEmpty. Operand 71479 states and 247734 transitions. [2019-11-20 03:00:32,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-11-20 03:00:32,539 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:00:32,539 INFO L410 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, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:00:32,539 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 03:00:32,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:00:32,540 INFO L82 PathProgramCache]: Analyzing trace with hash 479373122, now seen corresponding path program 2 times [2019-11-20 03:00:32,540 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:00:32,540 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445145246] [2019-11-20 03:00:32,540 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:00:32,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:00:32,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:00:32,709 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445145246] [2019-11-20 03:00:32,709 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:00:32,710 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-20 03:00:32,710 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871225846] [2019-11-20 03:00:32,710 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 03:00:32,710 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:00:32,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 03:00:32,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-20 03:00:32,711 INFO L87 Difference]: Start difference. First operand 71479 states and 247734 transitions. Second operand 8 states. [2019-11-20 03:00:34,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:00:34,996 INFO L93 Difference]: Finished difference Result 162604 states and 562176 transitions. [2019-11-20 03:00:34,997 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-20 03:00:34,997 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 39 [2019-11-20 03:00:34,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:00:35,141 INFO L225 Difference]: With dead ends: 162604 [2019-11-20 03:00:35,141 INFO L226 Difference]: Without dead ends: 64000 [2019-11-20 03:00:35,142 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2019-11-20 03:00:35,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64000 states. [2019-11-20 03:00:36,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64000 to 63271. [2019-11-20 03:00:36,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63271 states. [2019-11-20 03:00:36,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63271 states to 63271 states and 219681 transitions. [2019-11-20 03:00:36,808 INFO L78 Accepts]: Start accepts. Automaton has 63271 states and 219681 transitions. Word has length 39 [2019-11-20 03:00:36,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:00:36,808 INFO L462 AbstractCegarLoop]: Abstraction has 63271 states and 219681 transitions. [2019-11-20 03:00:36,808 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 03:00:36,809 INFO L276 IsEmpty]: Start isEmpty. Operand 63271 states and 219681 transitions. [2019-11-20 03:00:36,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-11-20 03:00:36,859 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:00:36,860 INFO L410 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, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:00:36,860 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 03:00:36,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:00:36,860 INFO L82 PathProgramCache]: Analyzing trace with hash 531919548, now seen corresponding path program 3 times [2019-11-20 03:00:36,861 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:00:36,861 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343561716] [2019-11-20 03:00:36,861 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:00:36,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:00:37,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:00:37,041 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343561716] [2019-11-20 03:00:37,041 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:00:37,042 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-20 03:00:37,042 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298325276] [2019-11-20 03:00:37,042 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 03:00:37,042 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:00:37,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 03:00:37,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-20 03:00:37,043 INFO L87 Difference]: Start difference. First operand 63271 states and 219681 transitions. Second operand 8 states. [2019-11-20 03:00:37,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:00:37,448 INFO L93 Difference]: Finished difference Result 50149 states and 171567 transitions. [2019-11-20 03:00:37,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 03:00:37,448 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 39 [2019-11-20 03:00:37,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:00:37,449 INFO L225 Difference]: With dead ends: 50149 [2019-11-20 03:00:37,449 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 03:00:37,449 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-11-20 03:00:37,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 03:00:37,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 03:00:37,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 03:00:37,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 03:00:37,451 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2019-11-20 03:00:37,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:00:37,451 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 03:00:37,451 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 03:00:37,451 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 03:00:37,451 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 03:00:37,454 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-20 03:00:37,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 03:00:37 BasicIcfg [2019-11-20 03:00:37,456 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 03:00:37,456 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 03:00:37,456 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 03:00:37,457 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 03:00:37,457 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:52:43" (3/4) ... [2019-11-20 03:00:37,461 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 03:00:37,470 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-20 03:00:37,470 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-20 03:00:37,470 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-20 03:00:37,471 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2019-11-20 03:00:37,475 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2019-11-20 03:00:37,475 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-20 03:00:37,475 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 03:00:37,524 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_954c3742-582e-4921-92ef-efc397024370/bin/uautomizer/witness.graphml [2019-11-20 03:00:37,524 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 03:00:37,527 INFO L168 Benchmark]: Toolchain (without parser) took 475692.17 ms. Allocated memory was 1.0 GB in the beginning and 6.7 GB in the end (delta: 5.6 GB). Free memory was 944.7 MB in the beginning and 2.8 GB in the end (delta: -1.9 GB). Peak memory consumption was 3.8 GB. Max. memory is 11.5 GB. [2019-11-20 03:00:37,528 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 03:00:37,529 INFO L168 Benchmark]: CACSL2BoogieTranslator took 788.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.9 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -196.9 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-11-20 03:00:37,529 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.63 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. [2019-11-20 03:00:37,530 INFO L168 Benchmark]: Boogie Preprocessor took 40.55 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 03:00:37,530 INFO L168 Benchmark]: RCFGBuilder took 527.58 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-11-20 03:00:37,531 INFO L168 Benchmark]: TraceAbstraction took 474185.04 ms. Allocated memory was 1.2 GB in the beginning and 6.7 GB in the end (delta: 5.5 GB). Free memory was 1.1 GB in the beginning and 2.8 GB in the end (delta: -1.7 GB). Peak memory consumption was 3.8 GB. Max. memory is 11.5 GB. [2019-11-20 03:00:37,532 INFO L168 Benchmark]: Witness Printer took 68.25 ms. Allocated memory is still 6.7 GB. Free memory was 2.8 GB in the beginning and 2.8 GB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 11.5 GB. [2019-11-20 03:00:37,536 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 788.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.9 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -196.9 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 77.63 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 40.55 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 527.58 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 474185.04 ms. Allocated memory was 1.2 GB in the beginning and 6.7 GB in the end (delta: 5.5 GB). Free memory was 1.1 GB in the beginning and 2.8 GB in the end (delta: -1.7 GB). Peak memory consumption was 3.8 GB. Max. memory is 11.5 GB. * Witness Printer took 68.25 ms. Allocated memory is still 6.7 GB. Free memory was 2.8 GB in the beginning and 2.8 GB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. 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 17 procedures, 112 locations, 1 error locations. Result: SAFE, OverallTime: 474.0s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 27.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 772 SDtfs, 1801 SDslu, 2264 SDs, 0 SdLazy, 355 SolverSat, 278 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=422272occurred 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: 25.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 729 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 263 NumberOfCodeBlocks, 263 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 256 ConstructedInterpolants, 0 QuantifiedInterpolants, 28670 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...