./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe030_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_2307a77f-e38f-4ef1-a536-c705362685cb/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_2307a77f-e38f-4ef1-a536-c705362685cb/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2307a77f-e38f-4ef1-a536-c705362685cb/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2307a77f-e38f-4ef1-a536-c705362685cb/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe030_tso.oepc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_2307a77f-e38f-4ef1-a536-c705362685cb/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2307a77f-e38f-4ef1-a536-c705362685cb/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 858eb92d9d907a95e1fa2c95755d1ad33d1f3141 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 10:19:26,599 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 10:19:26,601 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 10:19:26,615 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 10:19:26,616 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 10:19:26,617 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 10:19:26,619 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 10:19:26,628 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 10:19:26,632 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 10:19:26,636 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 10:19:26,637 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 10:19:26,638 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 10:19:26,638 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 10:19:26,641 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 10:19:26,641 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 10:19:26,642 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 10:19:26,643 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 10:19:26,644 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 10:19:26,646 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 10:19:26,650 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 10:19:26,653 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 10:19:26,655 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 10:19:26,658 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 10:19:26,658 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 10:19:26,660 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 10:19:26,661 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 10:19:26,661 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 10:19:26,662 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 10:19:26,663 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 10:19:26,663 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 10:19:26,664 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 10:19:26,664 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 10:19:26,665 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 10:19:26,666 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 10:19:26,667 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 10:19:26,667 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 10:19:26,668 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 10:19:26,668 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 10:19:26,668 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 10:19:26,669 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 10:19:26,670 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 10:19:26,671 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2307a77f-e38f-4ef1-a536-c705362685cb/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 10:19:26,695 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 10:19:26,696 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 10:19:26,697 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 10:19:26,697 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 10:19:26,697 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 10:19:26,697 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 10:19:26,697 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 10:19:26,698 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 10:19:26,698 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 10:19:26,698 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 10:19:26,698 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 10:19:26,698 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 10:19:26,698 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 10:19:26,699 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 10:19:26,699 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 10:19:26,699 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 10:19:26,699 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 10:19:26,699 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 10:19:26,700 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 10:19:26,700 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 10:19:26,700 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 10:19:26,700 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 10:19:26,700 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 10:19:26,700 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 10:19:26,701 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 10:19:26,701 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 10:19:26,701 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 10:19:26,701 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 10:19:26,701 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_2307a77f-e38f-4ef1-a536-c705362685cb/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 -> 858eb92d9d907a95e1fa2c95755d1ad33d1f3141 [2019-11-20 10:19:26,880 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 10:19:26,896 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 10:19:26,899 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 10:19:26,900 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 10:19:26,900 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 10:19:26,902 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2307a77f-e38f-4ef1-a536-c705362685cb/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe030_tso.oepc.i [2019-11-20 10:19:26,969 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2307a77f-e38f-4ef1-a536-c705362685cb/bin/uautomizer/data/07651326e/66e1980765c44927b8f9ece46fefb574/FLAG9b344d3c3 [2019-11-20 10:19:27,376 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 10:19:27,376 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2307a77f-e38f-4ef1-a536-c705362685cb/sv-benchmarks/c/pthread-wmm/safe030_tso.oepc.i [2019-11-20 10:19:27,392 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2307a77f-e38f-4ef1-a536-c705362685cb/bin/uautomizer/data/07651326e/66e1980765c44927b8f9ece46fefb574/FLAG9b344d3c3 [2019-11-20 10:19:27,700 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2307a77f-e38f-4ef1-a536-c705362685cb/bin/uautomizer/data/07651326e/66e1980765c44927b8f9ece46fefb574 [2019-11-20 10:19:27,702 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 10:19:27,703 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 10:19:27,704 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 10:19:27,704 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 10:19:27,708 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 10:19:27,708 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:19:27" (1/1) ... [2019-11-20 10:19:27,711 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@261d23b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:19:27, skipping insertion in model container [2019-11-20 10:19:27,711 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:19:27" (1/1) ... [2019-11-20 10:19:27,718 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 10:19:27,774 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 10:19:28,215 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:19:28,231 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 10:19:28,291 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:19:28,361 INFO L192 MainTranslator]: Completed translation [2019-11-20 10:19:28,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:19:28 WrapperNode [2019-11-20 10:19:28,361 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 10:19:28,362 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 10:19:28,362 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 10:19:28,362 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 10:19:28,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:19:28" (1/1) ... [2019-11-20 10:19:28,384 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:19:28" (1/1) ... [2019-11-20 10:19:28,402 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 10:19:28,403 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 10:19:28,403 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 10:19:28,403 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 10:19:28,411 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:19:28" (1/1) ... [2019-11-20 10:19:28,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:19:28" (1/1) ... [2019-11-20 10:19:28,414 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:19:28" (1/1) ... [2019-11-20 10:19:28,414 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:19:28" (1/1) ... [2019-11-20 10:19:28,420 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:19:28" (1/1) ... [2019-11-20 10:19:28,422 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:19:28" (1/1) ... [2019-11-20 10:19:28,423 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:19:28" (1/1) ... [2019-11-20 10:19:28,426 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 10:19:28,426 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 10:19:28,426 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 10:19:28,426 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 10:19:28,427 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:19:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2307a77f-e38f-4ef1-a536-c705362685cb/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 10:19:28,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 10:19:28,484 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-20 10:19:28,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 10:19:28,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 10:19:28,484 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-20 10:19:28,484 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-20 10:19:28,484 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-20 10:19:28,484 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-20 10:19:28,484 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-20 10:19:28,485 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-20 10:19:28,485 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-20 10:19:28,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 10:19:28,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 10:19:28,487 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 10:19:28,800 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 10:19:28,800 INFO L285 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-20 10:19:28,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:19:28 BoogieIcfgContainer [2019-11-20 10:19:28,801 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 10:19:28,802 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 10:19:28,802 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 10:19:28,805 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 10:19:28,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:19:27" (1/3) ... [2019-11-20 10:19:28,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e91d91f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:19:28, skipping insertion in model container [2019-11-20 10:19:28,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:19:28" (2/3) ... [2019-11-20 10:19:28,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e91d91f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:19:28, skipping insertion in model container [2019-11-20 10:19:28,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:19:28" (3/3) ... [2019-11-20 10:19:28,808 INFO L109 eAbstractionObserver]: Analyzing ICFG safe030_tso.oepc.i [2019-11-20 10:19:28,869 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:19:28,870 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:19:28,870 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:19:28,870 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:19:28,870 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:19:28,871 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:19:28,871 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:19:28,871 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:19:28,871 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:19:28,871 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:19:28,872 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:19:28,872 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:19:28,872 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork6_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:19:28,872 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork6_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:19:28,872 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork6_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:19:28,873 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork6_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:19:28,873 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork6_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:19:28,873 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork6_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:19:28,873 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork4_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:19:28,873 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork4_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:19:28,874 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:19:28,874 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:19:28,874 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:19:28,874 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:19:28,874 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:19:28,875 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:19:28,875 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:19:28,875 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:19:28,875 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:19:28,875 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:19:28,876 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork7_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:19:28,876 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork7_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:19:28,876 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork7_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:19:28,876 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork7_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:19:28,876 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork7_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:19:28,877 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork7_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:19:28,877 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork8_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:19:28,877 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork8_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:19:28,877 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork8_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:19:28,877 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork8_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:19:28,878 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork8_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:19:28,878 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork8_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:19:28,878 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork5_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:19:28,878 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork5_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:19:28,878 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:19:28,879 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:19:28,879 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:19:28,879 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:19:28,879 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:19:28,879 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:19:28,880 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:19:28,880 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:19:28,880 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:19:28,880 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:19:28,927 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-20 10:19:28,927 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 10:19:28,934 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 10:19:28,944 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 10:19:28,964 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 10:19:28,964 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 10:19:28,965 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 10:19:28,965 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 10:19:28,965 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 10:19:28,965 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 10:19:28,965 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 10:19:28,966 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 10:19:28,984 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 94 places, 73 transitions [2019-11-20 10:19:32,709 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 31742 states. [2019-11-20 10:19:32,711 INFO L276 IsEmpty]: Start isEmpty. Operand 31742 states. [2019-11-20 10:19:32,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-20 10:19:32,774 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:19:32,774 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] [2019-11-20 10:19:32,775 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 10:19:32,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:19:32,780 INFO L82 PathProgramCache]: Analyzing trace with hash -1271650482, now seen corresponding path program 1 times [2019-11-20 10:19:32,788 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:19:32,789 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309656196] [2019-11-20 10:19:32,789 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:19:32,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:19:33,143 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 10:19:33,144 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309656196] [2019-11-20 10:19:33,145 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:19:33,145 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 10:19:33,146 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413030764] [2019-11-20 10:19:33,150 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 10:19:33,151 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:19:33,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 10:19:33,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-20 10:19:33,166 INFO L87 Difference]: Start difference. First operand 31742 states. Second operand 4 states. [2019-11-20 10:19:33,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:19:33,656 INFO L93 Difference]: Finished difference Result 33011 states and 103291 transitions. [2019-11-20 10:19:33,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 10:19:33,658 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2019-11-20 10:19:33,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:19:33,813 INFO L225 Difference]: With dead ends: 33011 [2019-11-20 10:19:33,814 INFO L226 Difference]: Without dead ends: 14273 [2019-11-20 10:19:33,815 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 10:19:34,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14273 states. [2019-11-20 10:19:34,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14273 to 14273. [2019-11-20 10:19:34,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14273 states. [2019-11-20 10:19:34,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14273 states to 14273 states and 44296 transitions. [2019-11-20 10:19:34,745 INFO L78 Accepts]: Start accepts. Automaton has 14273 states and 44296 transitions. Word has length 29 [2019-11-20 10:19:34,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:19:34,746 INFO L462 AbstractCegarLoop]: Abstraction has 14273 states and 44296 transitions. [2019-11-20 10:19:34,746 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 10:19:34,747 INFO L276 IsEmpty]: Start isEmpty. Operand 14273 states and 44296 transitions. [2019-11-20 10:19:34,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-20 10:19:34,774 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:19:34,774 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] [2019-11-20 10:19:34,775 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 10:19:34,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:19:34,782 INFO L82 PathProgramCache]: Analyzing trace with hash -560267086, now seen corresponding path program 1 times [2019-11-20 10:19:34,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:19:34,783 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374957943] [2019-11-20 10:19:34,783 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:19:34,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:19:34,952 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 10:19:34,953 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374957943] [2019-11-20 10:19:34,953 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:19:34,953 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 10:19:34,953 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146440124] [2019-11-20 10:19:34,954 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 10:19:34,955 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:19:34,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 10:19:34,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-20 10:19:34,955 INFO L87 Difference]: Start difference. First operand 14273 states and 44296 transitions. Second operand 5 states. [2019-11-20 10:19:35,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:19:35,284 INFO L93 Difference]: Finished difference Result 14273 states and 42109 transitions. [2019-11-20 10:19:35,285 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 10:19:35,285 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2019-11-20 10:19:35,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:19:35,348 INFO L225 Difference]: With dead ends: 14273 [2019-11-20 10:19:35,349 INFO L226 Difference]: Without dead ends: 12572 [2019-11-20 10:19:35,350 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 [2019-11-20 10:19:35,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12572 states. [2019-11-20 10:19:35,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12572 to 12572. [2019-11-20 10:19:35,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12572 states. [2019-11-20 10:19:35,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12572 states to 12572 states and 38059 transitions. [2019-11-20 10:19:35,756 INFO L78 Accepts]: Start accepts. Automaton has 12572 states and 38059 transitions. Word has length 30 [2019-11-20 10:19:35,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:19:35,757 INFO L462 AbstractCegarLoop]: Abstraction has 12572 states and 38059 transitions. [2019-11-20 10:19:35,757 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 10:19:35,757 INFO L276 IsEmpty]: Start isEmpty. Operand 12572 states and 38059 transitions. [2019-11-20 10:19:35,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-20 10:19:35,781 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:19:35,782 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] [2019-11-20 10:19:35,782 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 10:19:35,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:19:35,782 INFO L82 PathProgramCache]: Analyzing trace with hash 720669507, now seen corresponding path program 1 times [2019-11-20 10:19:35,782 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:19:35,783 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377074999] [2019-11-20 10:19:35,783 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:19:35,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:19:35,918 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 10:19:35,918 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377074999] [2019-11-20 10:19:35,918 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:19:35,918 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-20 10:19:35,919 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094669054] [2019-11-20 10:19:35,919 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 10:19:35,919 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:19:35,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 10:19:35,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-20 10:19:35,920 INFO L87 Difference]: Start difference. First operand 12572 states and 38059 transitions. Second operand 6 states. [2019-11-20 10:19:36,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:19:36,098 INFO L93 Difference]: Finished difference Result 8927 states and 24937 transitions. [2019-11-20 10:19:36,098 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 10:19:36,098 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2019-11-20 10:19:36,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:19:36,120 INFO L225 Difference]: With dead ends: 8927 [2019-11-20 10:19:36,120 INFO L226 Difference]: Without dead ends: 7469 [2019-11-20 10:19:36,120 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 10:19:36,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7469 states. [2019-11-20 10:19:36,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7469 to 7469. [2019-11-20 10:19:36,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7469 states. [2019-11-20 10:19:36,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7469 states to 7469 states and 21049 transitions. [2019-11-20 10:19:36,524 INFO L78 Accepts]: Start accepts. Automaton has 7469 states and 21049 transitions. Word has length 31 [2019-11-20 10:19:36,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:19:36,524 INFO L462 AbstractCegarLoop]: Abstraction has 7469 states and 21049 transitions. [2019-11-20 10:19:36,524 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 10:19:36,525 INFO L276 IsEmpty]: Start isEmpty. Operand 7469 states and 21049 transitions. [2019-11-20 10:19:36,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-20 10:19:36,536 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:19:36,536 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] [2019-11-20 10:19:36,536 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 10:19:36,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:19:36,536 INFO L82 PathProgramCache]: Analyzing trace with hash -1066762285, now seen corresponding path program 1 times [2019-11-20 10:19:36,537 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:19:36,537 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044091808] [2019-11-20 10:19:36,537 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:19:36,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:19:36,677 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 10:19:36,677 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044091808] [2019-11-20 10:19:36,678 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:19:36,678 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-20 10:19:36,678 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388704659] [2019-11-20 10:19:36,678 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 10:19:36,678 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:19:36,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 10:19:36,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-20 10:19:36,679 INFO L87 Difference]: Start difference. First operand 7469 states and 21049 transitions. Second operand 6 states. [2019-11-20 10:19:36,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:19:36,811 INFO L93 Difference]: Finished difference Result 12086 states and 34009 transitions. [2019-11-20 10:19:36,811 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 10:19:36,811 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-11-20 10:19:36,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:19:36,829 INFO L225 Difference]: With dead ends: 12086 [2019-11-20 10:19:36,829 INFO L226 Difference]: Without dead ends: 6677 [2019-11-20 10:19:36,829 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-20 10:19:36,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6677 states. [2019-11-20 10:19:36,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6677 to 6677. [2019-11-20 10:19:36,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6677 states. [2019-11-20 10:19:36,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6677 states to 6677 states and 18664 transitions. [2019-11-20 10:19:36,985 INFO L78 Accepts]: Start accepts. Automaton has 6677 states and 18664 transitions. Word has length 32 [2019-11-20 10:19:36,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:19:36,986 INFO L462 AbstractCegarLoop]: Abstraction has 6677 states and 18664 transitions. [2019-11-20 10:19:36,986 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 10:19:36,986 INFO L276 IsEmpty]: Start isEmpty. Operand 6677 states and 18664 transitions. [2019-11-20 10:19:36,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-20 10:19:36,995 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:19:36,995 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] [2019-11-20 10:19:36,995 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 10:19:36,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:19:36,996 INFO L82 PathProgramCache]: Analyzing trace with hash 892467577, now seen corresponding path program 2 times [2019-11-20 10:19:36,996 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:19:36,996 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801210136] [2019-11-20 10:19:36,996 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:19:37,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:19:37,121 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 10:19:37,121 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801210136] [2019-11-20 10:19:37,121 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:19:37,121 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-20 10:19:37,122 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335987073] [2019-11-20 10:19:37,122 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 10:19:37,122 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:19:37,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 10:19:37,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-20 10:19:37,123 INFO L87 Difference]: Start difference. First operand 6677 states and 18664 transitions. Second operand 6 states. [2019-11-20 10:19:37,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:19:37,256 INFO L93 Difference]: Finished difference Result 11051 states and 31057 transitions. [2019-11-20 10:19:37,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 10:19:37,256 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-11-20 10:19:37,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:19:37,275 INFO L225 Difference]: With dead ends: 11051 [2019-11-20 10:19:37,275 INFO L226 Difference]: Without dead ends: 6245 [2019-11-20 10:19:37,275 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-20 10:19:37,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6245 states. [2019-11-20 10:19:37,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6245 to 6245. [2019-11-20 10:19:37,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6245 states. [2019-11-20 10:19:37,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6245 states to 6245 states and 17584 transitions. [2019-11-20 10:19:37,420 INFO L78 Accepts]: Start accepts. Automaton has 6245 states and 17584 transitions. Word has length 32 [2019-11-20 10:19:37,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:19:37,420 INFO L462 AbstractCegarLoop]: Abstraction has 6245 states and 17584 transitions. [2019-11-20 10:19:37,420 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 10:19:37,420 INFO L276 IsEmpty]: Start isEmpty. Operand 6245 states and 17584 transitions. [2019-11-20 10:19:37,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-20 10:19:37,427 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:19:37,428 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] [2019-11-20 10:19:37,428 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 10:19:37,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:19:37,428 INFO L82 PathProgramCache]: Analyzing trace with hash 106609977, now seen corresponding path program 3 times [2019-11-20 10:19:37,428 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:19:37,429 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148738252] [2019-11-20 10:19:37,429 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:19:37,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:19:37,543 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 10:19:37,543 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148738252] [2019-11-20 10:19:37,544 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:19:37,544 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-20 10:19:37,544 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336497713] [2019-11-20 10:19:37,544 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 10:19:37,544 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:19:37,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 10:19:37,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-20 10:19:37,545 INFO L87 Difference]: Start difference. First operand 6245 states and 17584 transitions. Second operand 6 states. [2019-11-20 10:19:37,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:19:37,641 INFO L93 Difference]: Finished difference Result 4787 states and 13210 transitions. [2019-11-20 10:19:37,641 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 10:19:37,641 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-11-20 10:19:37,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:19:37,642 INFO L225 Difference]: With dead ends: 4787 [2019-11-20 10:19:37,643 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 10:19:37,643 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-20 10:19:37,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 10:19:37,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 10:19:37,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 10:19:37,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 10:19:37,644 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2019-11-20 10:19:37,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:19:37,644 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 10:19:37,644 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 10:19:37,644 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 10:19:37,645 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 10:19:37,647 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-20 10:19:37,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 10:19:37 BasicIcfg [2019-11-20 10:19:37,650 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 10:19:37,650 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 10:19:37,650 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 10:19:37,650 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 10:19:37,651 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:19:28" (3/4) ... [2019-11-20 10:19:37,655 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 10:19:37,678 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-20 10:19:37,678 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-20 10:19:37,679 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-20 10:19:37,692 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-20 10:19:37,692 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-20 10:19:37,692 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 10:19:37,746 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2307a77f-e38f-4ef1-a536-c705362685cb/bin/uautomizer/witness.graphml [2019-11-20 10:19:37,746 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 10:19:37,748 INFO L168 Benchmark]: Toolchain (without parser) took 10043.72 ms. Allocated memory was 1.0 GB in the beginning and 1.7 GB in the end (delta: 661.7 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -189.8 MB). Peak memory consumption was 471.9 MB. Max. memory is 11.5 GB. [2019-11-20 10:19:37,748 INFO L168 Benchmark]: CDTParser took 0.32 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 10:19:37,749 INFO L168 Benchmark]: CACSL2BoogieTranslator took 657.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -153.2 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-11-20 10:19:37,749 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.86 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 10:19:37,749 INFO L168 Benchmark]: Boogie Preprocessor took 22.98 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 10:19:37,750 INFO L168 Benchmark]: RCFGBuilder took 375.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. [2019-11-20 10:19:37,756 INFO L168 Benchmark]: TraceAbstraction took 8847.79 ms. Allocated memory was 1.2 GB in the beginning and 1.7 GB in the end (delta: 532.7 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -84.8 MB). Peak memory consumption was 447.9 MB. Max. memory is 11.5 GB. [2019-11-20 10:19:37,757 INFO L168 Benchmark]: Witness Printer took 96.05 ms. Allocated memory is still 1.7 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. [2019-11-20 10:19:37,759 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 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 657.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -153.2 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 40.86 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 22.98 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 375.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8847.79 ms. Allocated memory was 1.2 GB in the beginning and 1.7 GB in the end (delta: 532.7 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -84.8 MB). Peak memory consumption was 447.9 MB. Max. memory is 11.5 GB. * Witness Printer took 96.05 ms. Allocated memory is still 1.7 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 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, 88 locations, 1 error locations. Result: SAFE, OverallTime: 8.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 548 SDtfs, 666 SDslu, 1266 SDs, 0 SdLazy, 152 SolverSat, 101 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31742occurred 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: 2.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 186 NumberOfCodeBlocks, 186 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 180 ConstructedInterpolants, 0 QuantifiedInterpolants, 13110 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...