./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe007_pso.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_5aa27154-4891-4306-9832-614000519d88/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_5aa27154-4891-4306-9832-614000519d88/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5aa27154-4891-4306-9832-614000519d88/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5aa27154-4891-4306-9832-614000519d88/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe007_pso.oepc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_5aa27154-4891-4306-9832-614000519d88/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5aa27154-4891-4306-9832-614000519d88/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 032157667bf90bb578dfa5575ad6e7215a53bb53 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-19 22:44:07,590 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 22:44:07,592 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 22:44:07,602 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 22:44:07,603 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 22:44:07,604 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 22:44:07,605 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 22:44:07,607 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 22:44:07,609 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 22:44:07,609 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 22:44:07,610 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 22:44:07,611 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 22:44:07,612 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 22:44:07,613 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 22:44:07,614 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 22:44:07,621 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 22:44:07,622 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 22:44:07,625 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 22:44:07,628 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 22:44:07,629 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 22:44:07,631 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 22:44:07,632 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 22:44:07,633 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 22:44:07,633 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 22:44:07,636 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 22:44:07,636 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 22:44:07,636 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 22:44:07,637 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 22:44:07,637 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 22:44:07,638 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 22:44:07,638 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 22:44:07,642 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 22:44:07,642 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 22:44:07,644 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 22:44:07,646 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 22:44:07,647 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 22:44:07,647 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 22:44:07,648 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 22:44:07,648 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 22:44:07,649 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 22:44:07,650 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 22:44:07,651 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5aa27154-4891-4306-9832-614000519d88/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-19 22:44:07,674 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 22:44:07,684 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 22:44:07,686 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 22:44:07,686 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 22:44:07,686 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 22:44:07,686 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 22:44:07,687 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 22:44:07,687 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 22:44:07,687 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 22:44:07,687 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 22:44:07,687 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 22:44:07,688 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 22:44:07,688 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 22:44:07,688 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 22:44:07,688 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 22:44:07,689 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 22:44:07,689 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 22:44:07,689 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 22:44:07,689 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 22:44:07,689 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 22:44:07,690 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 22:44:07,690 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 22:44:07,690 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 22:44:07,690 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 22:44:07,691 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 22:44:07,691 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 22:44:07,691 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 22:44:07,691 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 22:44:07,691 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_5aa27154-4891-4306-9832-614000519d88/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 -> 032157667bf90bb578dfa5575ad6e7215a53bb53 [2019-11-19 22:44:07,820 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 22:44:07,830 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 22:44:07,833 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 22:44:07,834 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 22:44:07,834 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 22:44:07,835 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5aa27154-4891-4306-9832-614000519d88/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe007_pso.oepc.i [2019-11-19 22:44:07,894 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5aa27154-4891-4306-9832-614000519d88/bin/uautomizer/data/963106f37/2c0ee050c3ba45da963fb5823870c21e/FLAGb0af53588 [2019-11-19 22:44:08,316 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 22:44:08,316 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5aa27154-4891-4306-9832-614000519d88/sv-benchmarks/c/pthread-wmm/safe007_pso.oepc.i [2019-11-19 22:44:08,332 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5aa27154-4891-4306-9832-614000519d88/bin/uautomizer/data/963106f37/2c0ee050c3ba45da963fb5823870c21e/FLAGb0af53588 [2019-11-19 22:44:08,694 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5aa27154-4891-4306-9832-614000519d88/bin/uautomizer/data/963106f37/2c0ee050c3ba45da963fb5823870c21e [2019-11-19 22:44:08,697 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 22:44:08,698 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 22:44:08,699 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 22:44:08,699 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 22:44:08,702 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 22:44:08,703 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:44:08" (1/1) ... [2019-11-19 22:44:08,705 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26d45846 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:44:08, skipping insertion in model container [2019-11-19 22:44:08,706 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:44:08" (1/1) ... [2019-11-19 22:44:08,716 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 22:44:08,760 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 22:44:09,167 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:44:09,184 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 22:44:09,236 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:44:09,325 INFO L192 MainTranslator]: Completed translation [2019-11-19 22:44:09,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:44:09 WrapperNode [2019-11-19 22:44:09,326 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 22:44:09,327 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 22:44:09,327 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 22:44:09,327 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 22:44:09,336 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:44:09" (1/1) ... [2019-11-19 22:44:09,364 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:44:09" (1/1) ... [2019-11-19 22:44:09,393 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 22:44:09,395 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 22:44:09,395 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 22:44:09,395 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 22:44:09,403 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:44:09" (1/1) ... [2019-11-19 22:44:09,403 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:44:09" (1/1) ... [2019-11-19 22:44:09,406 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:44:09" (1/1) ... [2019-11-19 22:44:09,406 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:44:09" (1/1) ... [2019-11-19 22:44:09,410 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:44:09" (1/1) ... [2019-11-19 22:44:09,415 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:44:09" (1/1) ... [2019-11-19 22:44:09,417 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:44:09" (1/1) ... [2019-11-19 22:44:09,422 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 22:44:09,428 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 22:44:09,428 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 22:44:09,428 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 22:44:09,429 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:44:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5aa27154-4891-4306-9832-614000519d88/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 [2019-11-19 22:44:09,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-19 22:44:09,489 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-19 22:44:09,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 22:44:09,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 22:44:09,490 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-19 22:44:09,490 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-19 22:44:09,490 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-19 22:44:09,491 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-19 22:44:09,491 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-19 22:44:09,491 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-19 22:44:09,492 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-19 22:44:09,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 22:44:09,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 22:44:09,494 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-19 22:44:09,773 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 22:44:09,773 INFO L285 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-19 22:44:09,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:44:09 BoogieIcfgContainer [2019-11-19 22:44:09,774 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 22:44:09,775 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 22:44:09,775 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 22:44:09,777 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 22:44:09,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 10:44:08" (1/3) ... [2019-11-19 22:44:09,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35a7b286 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:44:09, skipping insertion in model container [2019-11-19 22:44:09,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:44:09" (2/3) ... [2019-11-19 22:44:09,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35a7b286 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:44:09, skipping insertion in model container [2019-11-19 22:44:09,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:44:09" (3/3) ... [2019-11-19 22:44:09,780 INFO L109 eAbstractionObserver]: Analyzing ICFG safe007_pso.oepc.i [2019-11-19 22:44:09,840 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:44:09,841 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:44:09,841 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:44:09,841 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:44:09,842 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:44:09,842 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:44:09,842 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:44:09,843 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:44:09,843 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork7_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:44:09,843 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork7_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:44:09,843 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:44:09,844 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:44:09,844 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:44:09,844 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:44:09,844 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:44:09,845 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:44:09,845 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:44:09,845 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:44:09,845 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:44:09,846 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:44:09,846 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:44:09,846 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:44:09,846 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:44:09,847 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:44:09,847 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:44:09,847 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:44:09,847 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:44:09,847 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:44:09,848 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:44:09,848 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:44:09,848 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:44:09,849 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:44:09,849 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork8_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:44:09,849 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork8_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:44:09,849 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:44:09,849 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:44:09,850 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:44:09,850 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:44:09,850 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork6_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:44:09,850 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork6_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:44:09,851 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:44:09,851 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:44:09,851 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:44:09,852 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:44:09,852 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:44:09,852 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:44:09,852 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:44:09,852 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:44:09,853 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:44:09,853 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:44:09,853 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:44:09,853 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:44:09,854 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:44:09,854 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:44:09,874 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-19 22:44:09,874 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 22:44:09,880 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-19 22:44:09,890 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-19 22:44:09,905 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 22:44:09,906 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 22:44:09,906 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 22:44:09,906 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 22:44:09,906 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 22:44:09,906 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 22:44:09,906 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 22:44:09,906 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 22:44:09,916 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 97 places, 76 transitions [2019-11-19 22:44:13,064 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 31745 states. [2019-11-19 22:44:13,066 INFO L276 IsEmpty]: Start isEmpty. Operand 31745 states. [2019-11-19 22:44:13,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-19 22:44:13,120 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:44:13,121 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] [2019-11-19 22:44:13,121 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:44:13,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:44:13,126 INFO L82 PathProgramCache]: Analyzing trace with hash 495697940, now seen corresponding path program 1 times [2019-11-19 22:44:13,134 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:44:13,134 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049695878] [2019-11-19 22:44:13,135 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:44:13,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:44:13,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:44:13,421 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049695878] [2019-11-19 22:44:13,422 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:44:13,422 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-19 22:44:13,423 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843013222] [2019-11-19 22:44:13,426 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-19 22:44:13,430 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:44:13,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-19 22:44:13,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-19 22:44:13,448 INFO L87 Difference]: Start difference. First operand 31745 states. Second operand 4 states. [2019-11-19 22:44:14,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:44:14,006 INFO L93 Difference]: Finished difference Result 33014 states and 103294 transitions. [2019-11-19 22:44:14,006 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-19 22:44:14,007 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2019-11-19 22:44:14,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:44:14,149 INFO L225 Difference]: With dead ends: 33014 [2019-11-19 22:44:14,150 INFO L226 Difference]: Without dead ends: 14276 [2019-11-19 22:44:14,152 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 [2019-11-19 22:44:14,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14276 states. [2019-11-19 22:44:14,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14276 to 14276. [2019-11-19 22:44:14,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14276 states. [2019-11-19 22:44:14,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14276 states to 14276 states and 44299 transitions. [2019-11-19 22:44:14,850 INFO L78 Accepts]: Start accepts. Automaton has 14276 states and 44299 transitions. Word has length 32 [2019-11-19 22:44:14,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:44:14,852 INFO L462 AbstractCegarLoop]: Abstraction has 14276 states and 44299 transitions. [2019-11-19 22:44:14,853 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-19 22:44:14,853 INFO L276 IsEmpty]: Start isEmpty. Operand 14276 states and 44299 transitions. [2019-11-19 22:44:14,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-19 22:44:14,879 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:44:14,880 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] [2019-11-19 22:44:14,880 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:44:14,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:44:14,888 INFO L82 PathProgramCache]: Analyzing trace with hash -222936086, now seen corresponding path program 1 times [2019-11-19 22:44:14,888 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:44:14,889 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440700787] [2019-11-19 22:44:14,889 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:44:14,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:44:15,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:44:15,037 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440700787] [2019-11-19 22:44:15,037 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:44:15,037 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-19 22:44:15,037 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87895087] [2019-11-19 22:44:15,039 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-19 22:44:15,039 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:44:15,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-19 22:44:15,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-19 22:44:15,040 INFO L87 Difference]: Start difference. First operand 14276 states and 44299 transitions. Second operand 5 states. [2019-11-19 22:44:15,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:44:15,236 INFO L93 Difference]: Finished difference Result 14276 states and 42112 transitions. [2019-11-19 22:44:15,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-19 22:44:15,237 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2019-11-19 22:44:15,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:44:15,286 INFO L225 Difference]: With dead ends: 14276 [2019-11-19 22:44:15,286 INFO L226 Difference]: Without dead ends: 12575 [2019-11-19 22:44:15,287 INFO L630 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 [2019-11-19 22:44:15,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12575 states. [2019-11-19 22:44:15,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12575 to 12575. [2019-11-19 22:44:15,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12575 states. [2019-11-19 22:44:15,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12575 states to 12575 states and 38062 transitions. [2019-11-19 22:44:15,682 INFO L78 Accepts]: Start accepts. Automaton has 12575 states and 38062 transitions. Word has length 33 [2019-11-19 22:44:15,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:44:15,683 INFO L462 AbstractCegarLoop]: Abstraction has 12575 states and 38062 transitions. [2019-11-19 22:44:15,683 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-19 22:44:15,683 INFO L276 IsEmpty]: Start isEmpty. Operand 12575 states and 38062 transitions. [2019-11-19 22:44:15,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-19 22:44:15,701 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:44:15,702 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] [2019-11-19 22:44:15,702 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:44:15,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:44:15,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1521736321, now seen corresponding path program 1 times [2019-11-19 22:44:15,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:44:15,703 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138533077] [2019-11-19 22:44:15,703 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:44:15,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:44:15,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:44:15,895 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138533077] [2019-11-19 22:44:15,895 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:44:15,895 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-19 22:44:15,895 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738576239] [2019-11-19 22:44:15,896 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-19 22:44:15,896 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:44:15,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-19 22:44:15,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-19 22:44:15,897 INFO L87 Difference]: Start difference. First operand 12575 states and 38062 transitions. Second operand 6 states. [2019-11-19 22:44:16,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:44:16,125 INFO L93 Difference]: Finished difference Result 8930 states and 24940 transitions. [2019-11-19 22:44:16,126 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-19 22:44:16,126 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2019-11-19 22:44:16,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:44:16,148 INFO L225 Difference]: With dead ends: 8930 [2019-11-19 22:44:16,148 INFO L226 Difference]: Without dead ends: 7472 [2019-11-19 22:44:16,148 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-11-19 22:44:16,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7472 states. [2019-11-19 22:44:16,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7472 to 7472. [2019-11-19 22:44:16,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7472 states. [2019-11-19 22:44:16,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7472 states to 7472 states and 21052 transitions. [2019-11-19 22:44:16,558 INFO L78 Accepts]: Start accepts. Automaton has 7472 states and 21052 transitions. Word has length 34 [2019-11-19 22:44:16,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:44:16,559 INFO L462 AbstractCegarLoop]: Abstraction has 7472 states and 21052 transitions. [2019-11-19 22:44:16,559 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-19 22:44:16,559 INFO L276 IsEmpty]: Start isEmpty. Operand 7472 states and 21052 transitions. [2019-11-19 22:44:16,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-19 22:44:16,571 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:44:16,572 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] [2019-11-19 22:44:16,572 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:44:16,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:44:16,572 INFO L82 PathProgramCache]: Analyzing trace with hash 1266582259, now seen corresponding path program 1 times [2019-11-19 22:44:16,573 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:44:16,573 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958144117] [2019-11-19 22:44:16,573 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:44:16,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:44:16,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:44:16,802 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958144117] [2019-11-19 22:44:16,802 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:44:16,802 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-19 22:44:16,803 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178393231] [2019-11-19 22:44:16,803 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-19 22:44:16,803 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:44:16,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-19 22:44:16,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-19 22:44:16,804 INFO L87 Difference]: Start difference. First operand 7472 states and 21052 transitions. Second operand 8 states. [2019-11-19 22:44:17,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:44:17,026 INFO L93 Difference]: Finished difference Result 12089 states and 34012 transitions. [2019-11-19 22:44:17,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-19 22:44:17,026 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2019-11-19 22:44:17,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:44:17,043 INFO L225 Difference]: With dead ends: 12089 [2019-11-19 22:44:17,044 INFO L226 Difference]: Without dead ends: 6680 [2019-11-19 22:44:17,046 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 [2019-11-19 22:44:17,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6680 states. [2019-11-19 22:44:17,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6680 to 6680. [2019-11-19 22:44:17,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6680 states. [2019-11-19 22:44:17,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6680 states to 6680 states and 18667 transitions. [2019-11-19 22:44:17,195 INFO L78 Accepts]: Start accepts. Automaton has 6680 states and 18667 transitions. Word has length 35 [2019-11-19 22:44:17,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:44:17,195 INFO L462 AbstractCegarLoop]: Abstraction has 6680 states and 18667 transitions. [2019-11-19 22:44:17,195 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-19 22:44:17,195 INFO L276 IsEmpty]: Start isEmpty. Operand 6680 states and 18667 transitions. [2019-11-19 22:44:17,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-19 22:44:17,204 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:44:17,204 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] [2019-11-19 22:44:17,204 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:44:17,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:44:17,204 INFO L82 PathProgramCache]: Analyzing trace with hash -1679136175, now seen corresponding path program 2 times [2019-11-19 22:44:17,205 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:44:17,205 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195796979] [2019-11-19 22:44:17,206 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:44:17,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:44:17,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:44:17,396 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195796979] [2019-11-19 22:44:17,396 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:44:17,397 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-19 22:44:17,397 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552797487] [2019-11-19 22:44:17,397 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-19 22:44:17,397 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:44:17,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-19 22:44:17,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-19 22:44:17,397 INFO L87 Difference]: Start difference. First operand 6680 states and 18667 transitions. Second operand 8 states. [2019-11-19 22:44:17,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:44:17,565 INFO L93 Difference]: Finished difference Result 11297 states and 31627 transitions. [2019-11-19 22:44:17,566 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-19 22:44:17,566 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2019-11-19 22:44:17,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:44:17,580 INFO L225 Difference]: With dead ends: 11297 [2019-11-19 22:44:17,580 INFO L226 Difference]: Without dead ends: 6356 [2019-11-19 22:44:17,581 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-11-19 22:44:17,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6356 states. [2019-11-19 22:44:17,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6356 to 6356. [2019-11-19 22:44:17,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6356 states. [2019-11-19 22:44:17,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6356 states to 6356 states and 17857 transitions. [2019-11-19 22:44:17,719 INFO L78 Accepts]: Start accepts. Automaton has 6356 states and 17857 transitions. Word has length 35 [2019-11-19 22:44:17,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:44:17,720 INFO L462 AbstractCegarLoop]: Abstraction has 6356 states and 17857 transitions. [2019-11-19 22:44:17,720 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-19 22:44:17,720 INFO L276 IsEmpty]: Start isEmpty. Operand 6356 states and 17857 transitions. [2019-11-19 22:44:17,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-19 22:44:17,727 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:44:17,727 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] [2019-11-19 22:44:17,727 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:44:17,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:44:17,728 INFO L82 PathProgramCache]: Analyzing trace with hash 1175512079, now seen corresponding path program 3 times [2019-11-19 22:44:17,728 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:44:17,728 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542546628] [2019-11-19 22:44:17,728 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:44:17,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:44:17,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:44:17,851 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542546628] [2019-11-19 22:44:17,851 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:44:17,851 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-19 22:44:17,852 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357058523] [2019-11-19 22:44:17,852 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-19 22:44:17,852 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:44:17,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-19 22:44:17,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-19 22:44:17,853 INFO L87 Difference]: Start difference. First operand 6356 states and 17857 transitions. Second operand 8 states. [2019-11-19 22:44:17,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:44:17,978 INFO L93 Difference]: Finished difference Result 4898 states and 13483 transitions. [2019-11-19 22:44:17,978 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-19 22:44:17,978 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2019-11-19 22:44:17,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:44:17,978 INFO L225 Difference]: With dead ends: 4898 [2019-11-19 22:44:17,979 INFO L226 Difference]: Without dead ends: 0 [2019-11-19 22:44:17,979 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-11-19 22:44:17,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-19 22:44:17,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-19 22:44:17,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-19 22:44:17,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-19 22:44:17,980 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2019-11-19 22:44:17,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:44:17,980 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 22:44:17,980 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-19 22:44:17,980 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-19 22:44:17,980 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-19 22:44:17,983 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-19 22:44:17,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 10:44:17 BasicIcfg [2019-11-19 22:44:17,985 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 22:44:17,985 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 22:44:17,985 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 22:44:17,985 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 22:44:17,986 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:44:09" (3/4) ... [2019-11-19 22:44:17,989 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-19 22:44:17,995 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-19 22:44:17,995 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-19 22:44:17,995 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-19 22:44:17,999 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-19 22:44:17,999 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-19 22:44:17,999 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-19 22:44:18,037 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5aa27154-4891-4306-9832-614000519d88/bin/uautomizer/witness.graphml [2019-11-19 22:44:18,037 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 22:44:18,039 INFO L168 Benchmark]: Toolchain (without parser) took 9340.84 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 483.4 MB). Free memory was 944.7 MB in the beginning and 982.8 MB in the end (delta: -38.0 MB). Peak memory consumption was 445.4 MB. Max. memory is 11.5 GB. [2019-11-19 22:44:18,040 INFO L168 Benchmark]: CDTParser took 0.22 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. [2019-11-19 22:44:18,040 INFO L168 Benchmark]: CACSL2BoogieTranslator took 627.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -159.6 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-19 22:44:18,041 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.94 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. [2019-11-19 22:44:18,041 INFO L168 Benchmark]: Boogie Preprocessor took 27.17 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. [2019-11-19 22:44:18,041 INFO L168 Benchmark]: RCFGBuilder took 346.23 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: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. [2019-11-19 22:44:18,042 INFO L168 Benchmark]: TraceAbstraction took 8209.77 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 345.5 MB). Free memory was 1.1 GB in the beginning and 986.4 MB in the end (delta: 90.2 MB). Peak memory consumption was 435.7 MB. Max. memory is 11.5 GB. [2019-11-19 22:44:18,042 INFO L168 Benchmark]: Witness Printer took 52.64 ms. Allocated memory is still 1.5 GB. Free memory was 986.4 MB in the beginning and 982.8 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 11.5 GB. [2019-11-19 22:44:18,045 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 627.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -159.6 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 67.94 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 27.17 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 346.23 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: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8209.77 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 345.5 MB). Free memory was 1.1 GB in the beginning and 986.4 MB in the end (delta: 90.2 MB). Peak memory consumption was 435.7 MB. Max. memory is 11.5 GB. * Witness Printer took 52.64 ms. Allocated memory is still 1.5 GB. Free memory was 986.4 MB in the beginning and 982.8 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 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 13 procedures, 91 locations, 1 error locations. Result: SAFE, OverallTime: 8.0s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 512 SDtfs, 968 SDslu, 1374 SDs, 0 SdLazy, 210 SolverSat, 122 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31745occurred 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: 1.7s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 204 NumberOfCodeBlocks, 204 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 198 ConstructedInterpolants, 0 QuantifiedInterpolants, 21102 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...