./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe037_rmo.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_d1c409b8-5f09-4dbd-80f3-d465f85612aa/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d1c409b8-5f09-4dbd-80f3-d465f85612aa/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d1c409b8-5f09-4dbd-80f3-d465f85612aa/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d1c409b8-5f09-4dbd-80f3-d465f85612aa/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe037_rmo.oepc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_d1c409b8-5f09-4dbd-80f3-d465f85612aa/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d1c409b8-5f09-4dbd-80f3-d465f85612aa/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 670b5a25645501a08fec90d42e7c353d05a2efba ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 09:41:24,842 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 09:41:24,844 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 09:41:24,857 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 09:41:24,858 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 09:41:24,859 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 09:41:24,861 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 09:41:24,869 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 09:41:24,874 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 09:41:24,878 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 09:41:24,879 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 09:41:24,880 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 09:41:24,880 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 09:41:24,882 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 09:41:24,883 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 09:41:24,884 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 09:41:24,885 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 09:41:24,886 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 09:41:24,888 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 09:41:24,891 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 09:41:24,895 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 09:41:24,896 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 09:41:24,899 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 09:41:24,899 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 09:41:24,902 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 09:41:24,902 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 09:41:24,903 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 09:41:24,904 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 09:41:24,904 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 09:41:24,905 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 09:41:24,905 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 09:41:24,906 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 09:41:24,906 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 09:41:24,907 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 09:41:24,908 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 09:41:24,908 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 09:41:24,909 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 09:41:24,909 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 09:41:24,909 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 09:41:24,910 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 09:41:24,911 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 09:41:24,911 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d1c409b8-5f09-4dbd-80f3-d465f85612aa/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 09:41:24,929 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 09:41:24,929 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 09:41:24,930 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 09:41:24,930 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 09:41:24,930 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 09:41:24,931 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 09:41:24,931 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 09:41:24,931 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 09:41:24,931 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 09:41:24,931 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 09:41:24,931 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 09:41:24,932 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 09:41:24,932 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 09:41:24,932 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 09:41:24,932 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 09:41:24,932 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 09:41:24,932 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 09:41:24,933 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 09:41:24,933 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 09:41:24,933 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 09:41:24,933 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 09:41:24,933 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 09:41:24,934 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 09:41:24,934 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 09:41:24,934 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 09:41:24,934 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 09:41:24,934 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 09:41:24,934 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 09:41:24,935 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_d1c409b8-5f09-4dbd-80f3-d465f85612aa/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 -> 670b5a25645501a08fec90d42e7c353d05a2efba [2019-11-20 09:41:25,071 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 09:41:25,081 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 09:41:25,085 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 09:41:25,086 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 09:41:25,087 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 09:41:25,087 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d1c409b8-5f09-4dbd-80f3-d465f85612aa/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe037_rmo.oepc.i [2019-11-20 09:41:25,142 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d1c409b8-5f09-4dbd-80f3-d465f85612aa/bin/uautomizer/data/4ce5a56a1/431477a0a22c448e986ccb2a0704ef3d/FLAG2d5453b38 [2019-11-20 09:41:25,631 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 09:41:25,632 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d1c409b8-5f09-4dbd-80f3-d465f85612aa/sv-benchmarks/c/pthread-wmm/safe037_rmo.oepc.i [2019-11-20 09:41:25,648 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d1c409b8-5f09-4dbd-80f3-d465f85612aa/bin/uautomizer/data/4ce5a56a1/431477a0a22c448e986ccb2a0704ef3d/FLAG2d5453b38 [2019-11-20 09:41:26,159 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d1c409b8-5f09-4dbd-80f3-d465f85612aa/bin/uautomizer/data/4ce5a56a1/431477a0a22c448e986ccb2a0704ef3d [2019-11-20 09:41:26,162 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 09:41:26,163 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 09:41:26,164 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 09:41:26,164 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 09:41:26,168 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 09:41:26,169 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:41:26" (1/1) ... [2019-11-20 09:41:26,171 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bbded58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:41:26, skipping insertion in model container [2019-11-20 09:41:26,171 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:41:26" (1/1) ... [2019-11-20 09:41:26,177 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 09:41:26,228 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 09:41:26,591 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 09:41:26,601 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 09:41:26,643 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 09:41:26,715 INFO L192 MainTranslator]: Completed translation [2019-11-20 09:41:26,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:41:26 WrapperNode [2019-11-20 09:41:26,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 09:41:26,717 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 09:41:26,717 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 09:41:26,717 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 09:41:26,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:41:26" (1/1) ... [2019-11-20 09:41:26,740 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:41:26" (1/1) ... [2019-11-20 09:41:26,760 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 09:41:26,761 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 09:41:26,761 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 09:41:26,761 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 09:41:26,770 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:41:26" (1/1) ... [2019-11-20 09:41:26,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:41:26" (1/1) ... [2019-11-20 09:41:26,773 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:41:26" (1/1) ... [2019-11-20 09:41:26,773 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:41:26" (1/1) ... [2019-11-20 09:41:26,779 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:41:26" (1/1) ... [2019-11-20 09:41:26,781 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:41:26" (1/1) ... [2019-11-20 09:41:26,783 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:41:26" (1/1) ... [2019-11-20 09:41:26,786 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 09:41:26,786 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 09:41:26,786 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 09:41:26,787 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 09:41:26,787 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:41:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1c409b8-5f09-4dbd-80f3-d465f85612aa/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 09:41:26,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 09:41:26,864 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-20 09:41:26,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 09:41:26,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 09:41:26,865 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-20 09:41:26,866 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-20 09:41:26,866 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-20 09:41:26,866 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-20 09:41:26,866 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-20 09:41:26,866 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-20 09:41:26,867 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-20 09:41:26,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 09:41:26,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 09:41:26,869 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 09:41:27,221 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 09:41:27,221 INFO L285 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-20 09:41:27,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:41:27 BoogieIcfgContainer [2019-11-20 09:41:27,222 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 09:41:27,223 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 09:41:27,223 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 09:41:27,226 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 09:41:27,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:41:26" (1/3) ... [2019-11-20 09:41:27,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ed1ba9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:41:27, skipping insertion in model container [2019-11-20 09:41:27,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:41:26" (2/3) ... [2019-11-20 09:41:27,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ed1ba9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:41:27, skipping insertion in model container [2019-11-20 09:41:27,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:41:27" (3/3) ... [2019-11-20 09:41:27,229 INFO L109 eAbstractionObserver]: Analyzing ICFG safe037_rmo.oepc.i [2019-11-20 09:41:27,273 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:41:27,273 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:41:27,274 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:41:27,274 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:41:27,274 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:41:27,274 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:41:27,275 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:41:27,275 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:41:27,275 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:41:27,275 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:41:27,276 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:41:27,276 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:41:27,276 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:41:27,276 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:41:27,276 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork7_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:41:27,277 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork7_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:41:27,277 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:41:27,277 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:41:27,278 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:41:27,278 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:41:27,278 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:41:27,278 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:41:27,278 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:41:27,279 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:41:27,279 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:41:27,279 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:41:27,279 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:41:27,280 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:41:27,280 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:41:27,280 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:41:27,280 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:41:27,281 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:41:27,281 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork8_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:41:27,281 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork8_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:41:27,281 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:41:27,281 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:41:27,282 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:41:27,282 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:41:27,282 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork6_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:41:27,282 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork6_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:41:27,283 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:41:27,283 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:41:27,283 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:41:27,283 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:41:27,284 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:41:27,284 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:41:27,284 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:41:27,284 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:41:27,285 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:41:27,285 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:41:27,285 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:41:27,285 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:41:27,285 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:41:27,286 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:41:27,340 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-20 09:41:27,340 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 09:41:27,346 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 09:41:27,355 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 09:41:27,375 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 09:41:27,375 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 09:41:27,375 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 09:41:27,375 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 09:41:27,375 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 09:41:27,376 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 09:41:27,376 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 09:41:27,376 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 09:41:27,389 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 97 places, 76 transitions [2019-11-20 09:41:30,888 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 31745 states. [2019-11-20 09:41:30,890 INFO L276 IsEmpty]: Start isEmpty. Operand 31745 states. [2019-11-20 09:41:30,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-20 09:41:30,954 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:41:30,955 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 09:41:30,956 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:41:30,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:41:30,961 INFO L82 PathProgramCache]: Analyzing trace with hash -461674589, now seen corresponding path program 1 times [2019-11-20 09:41:30,969 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:41:30,970 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349065384] [2019-11-20 09:41:30,970 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:41:31,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:41:31,304 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 09:41:31,304 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349065384] [2019-11-20 09:41:31,305 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:41:31,305 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 09:41:31,306 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354383542] [2019-11-20 09:41:31,310 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 09:41:31,311 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 09:41:31,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 09:41:31,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-20 09:41:31,325 INFO L87 Difference]: Start difference. First operand 31745 states. Second operand 4 states. [2019-11-20 09:41:31,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:41:31,755 INFO L93 Difference]: Finished difference Result 33014 states and 103294 transitions. [2019-11-20 09:41:31,755 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 09:41:31,757 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2019-11-20 09:41:31,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:41:32,083 INFO L225 Difference]: With dead ends: 33014 [2019-11-20 09:41:32,083 INFO L226 Difference]: Without dead ends: 14276 [2019-11-20 09:41:32,085 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 09:41:32,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14276 states. [2019-11-20 09:41:32,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14276 to 14276. [2019-11-20 09:41:32,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14276 states. [2019-11-20 09:41:32,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14276 states to 14276 states and 44299 transitions. [2019-11-20 09:41:32,771 INFO L78 Accepts]: Start accepts. Automaton has 14276 states and 44299 transitions. Word has length 32 [2019-11-20 09:41:32,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:41:32,773 INFO L462 AbstractCegarLoop]: Abstraction has 14276 states and 44299 transitions. [2019-11-20 09:41:32,773 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 09:41:32,774 INFO L276 IsEmpty]: Start isEmpty. Operand 14276 states and 44299 transitions. [2019-11-20 09:41:32,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-20 09:41:32,804 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:41:32,804 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] [2019-11-20 09:41:32,804 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:41:32,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:41:32,812 INFO L82 PathProgramCache]: Analyzing trace with hash 958119185, now seen corresponding path program 1 times [2019-11-20 09:41:32,813 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:41:32,813 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736385458] [2019-11-20 09:41:32,813 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:41:32,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:41:33,010 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 09:41:33,011 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736385458] [2019-11-20 09:41:33,011 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:41:33,011 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 09:41:33,011 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386438863] [2019-11-20 09:41:33,012 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 09:41:33,013 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 09:41:33,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 09:41:33,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-20 09:41:33,013 INFO L87 Difference]: Start difference. First operand 14276 states and 44299 transitions. Second operand 5 states. [2019-11-20 09:41:33,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:41:33,265 INFO L93 Difference]: Finished difference Result 14276 states and 42112 transitions. [2019-11-20 09:41:33,266 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 09:41:33,266 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2019-11-20 09:41:33,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:41:33,328 INFO L225 Difference]: With dead ends: 14276 [2019-11-20 09:41:33,328 INFO L226 Difference]: Without dead ends: 12575 [2019-11-20 09:41:33,329 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 09:41:33,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12575 states. [2019-11-20 09:41:33,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12575 to 12575. [2019-11-20 09:41:33,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12575 states. [2019-11-20 09:41:33,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12575 states to 12575 states and 38062 transitions. [2019-11-20 09:41:33,730 INFO L78 Accepts]: Start accepts. Automaton has 12575 states and 38062 transitions. Word has length 33 [2019-11-20 09:41:33,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:41:33,731 INFO L462 AbstractCegarLoop]: Abstraction has 12575 states and 38062 transitions. [2019-11-20 09:41:33,731 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 09:41:33,731 INFO L276 IsEmpty]: Start isEmpty. Operand 12575 states and 38062 transitions. [2019-11-20 09:41:33,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-20 09:41:33,755 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:41:33,755 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] [2019-11-20 09:41:33,756 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:41:33,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:41:33,756 INFO L82 PathProgramCache]: Analyzing trace with hash 1856573003, now seen corresponding path program 1 times [2019-11-20 09:41:33,756 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:41:33,757 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420769935] [2019-11-20 09:41:33,757 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:41:33,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:41:33,862 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 09:41:33,862 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420769935] [2019-11-20 09:41:33,863 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:41:33,863 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-20 09:41:33,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581879903] [2019-11-20 09:41:33,863 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 09:41:33,863 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 09:41:33,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 09:41:33,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-20 09:41:33,864 INFO L87 Difference]: Start difference. First operand 12575 states and 38062 transitions. Second operand 6 states. [2019-11-20 09:41:34,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:41:34,066 INFO L93 Difference]: Finished difference Result 8930 states and 24940 transitions. [2019-11-20 09:41:34,066 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 09:41:34,067 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2019-11-20 09:41:34,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:41:34,087 INFO L225 Difference]: With dead ends: 8930 [2019-11-20 09:41:34,087 INFO L226 Difference]: Without dead ends: 7472 [2019-11-20 09:41:34,088 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 09:41:34,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7472 states. [2019-11-20 09:41:34,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7472 to 7472. [2019-11-20 09:41:34,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7472 states. [2019-11-20 09:41:34,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7472 states to 7472 states and 21052 transitions. [2019-11-20 09:41:34,456 INFO L78 Accepts]: Start accepts. Automaton has 7472 states and 21052 transitions. Word has length 34 [2019-11-20 09:41:34,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:41:34,457 INFO L462 AbstractCegarLoop]: Abstraction has 7472 states and 21052 transitions. [2019-11-20 09:41:34,457 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 09:41:34,457 INFO L276 IsEmpty]: Start isEmpty. Operand 7472 states and 21052 transitions. [2019-11-20 09:41:34,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-20 09:41:34,468 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:41:34,468 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:41:34,468 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:41:34,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:41:34,469 INFO L82 PathProgramCache]: Analyzing trace with hash -1289593420, now seen corresponding path program 1 times [2019-11-20 09:41:34,469 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:41:34,469 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113857161] [2019-11-20 09:41:34,469 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:41:34,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:41:34,752 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 09:41:34,753 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113857161] [2019-11-20 09:41:34,754 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:41:34,754 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-20 09:41:34,754 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129498455] [2019-11-20 09:41:34,754 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 09:41:34,755 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 09:41:34,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 09:41:34,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-20 09:41:34,755 INFO L87 Difference]: Start difference. First operand 7472 states and 21052 transitions. Second operand 7 states. [2019-11-20 09:41:34,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:41:34,988 INFO L93 Difference]: Finished difference Result 12089 states and 34012 transitions. [2019-11-20 09:41:34,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 09:41:34,988 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2019-11-20 09:41:34,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:41:35,010 INFO L225 Difference]: With dead ends: 12089 [2019-11-20 09:41:35,011 INFO L226 Difference]: Without dead ends: 7472 [2019-11-20 09:41:35,011 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-11-20 09:41:35,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7472 states. [2019-11-20 09:41:35,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7472 to 7229. [2019-11-20 09:41:35,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7229 states. [2019-11-20 09:41:35,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7229 states to 7229 states and 20323 transitions. [2019-11-20 09:41:35,179 INFO L78 Accepts]: Start accepts. Automaton has 7229 states and 20323 transitions. Word has length 35 [2019-11-20 09:41:35,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:41:35,179 INFO L462 AbstractCegarLoop]: Abstraction has 7229 states and 20323 transitions. [2019-11-20 09:41:35,180 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 09:41:35,180 INFO L276 IsEmpty]: Start isEmpty. Operand 7229 states and 20323 transitions. [2019-11-20 09:41:35,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-20 09:41:35,189 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:41:35,189 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:41:35,189 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:41:35,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:41:35,189 INFO L82 PathProgramCache]: Analyzing trace with hash 771266382, now seen corresponding path program 2 times [2019-11-20 09:41:35,190 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:41:35,190 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805027356] [2019-11-20 09:41:35,190 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:41:35,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:41:35,334 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 09:41:35,335 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805027356] [2019-11-20 09:41:35,335 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:41:35,335 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-20 09:41:35,335 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666395881] [2019-11-20 09:41:35,336 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 09:41:35,336 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 09:41:35,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 09:41:35,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-20 09:41:35,336 INFO L87 Difference]: Start difference. First operand 7229 states and 20323 transitions. Second operand 7 states. [2019-11-20 09:41:35,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:41:35,584 INFO L93 Difference]: Finished difference Result 11603 states and 32716 transitions. [2019-11-20 09:41:35,585 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 09:41:35,585 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2019-11-20 09:41:35,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:41:35,613 INFO L225 Difference]: With dead ends: 11603 [2019-11-20 09:41:35,613 INFO L226 Difference]: Without dead ends: 6437 [2019-11-20 09:41:35,614 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-11-20 09:41:35,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6437 states. [2019-11-20 09:41:35,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6437 to 6437. [2019-11-20 09:41:35,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6437 states. [2019-11-20 09:41:35,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6437 states to 6437 states and 18019 transitions. [2019-11-20 09:41:35,795 INFO L78 Accepts]: Start accepts. Automaton has 6437 states and 18019 transitions. Word has length 35 [2019-11-20 09:41:35,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:41:35,796 INFO L462 AbstractCegarLoop]: Abstraction has 6437 states and 18019 transitions. [2019-11-20 09:41:35,796 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 09:41:35,796 INFO L276 IsEmpty]: Start isEmpty. Operand 6437 states and 18019 transitions. [2019-11-20 09:41:35,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-20 09:41:35,805 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:41:35,805 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:41:35,806 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:41:35,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:41:35,806 INFO L82 PathProgramCache]: Analyzing trace with hash 1219681218, now seen corresponding path program 3 times [2019-11-20 09:41:35,806 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:41:35,807 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794945427] [2019-11-20 09:41:35,807 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:41:35,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:41:35,959 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 09:41:35,959 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794945427] [2019-11-20 09:41:35,959 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:41:35,959 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-20 09:41:35,959 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913664314] [2019-11-20 09:41:35,960 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 09:41:35,960 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 09:41:35,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 09:41:35,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-20 09:41:35,960 INFO L87 Difference]: Start difference. First operand 6437 states and 18019 transitions. Second operand 8 states. [2019-11-20 09:41:36,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:41:36,150 INFO L93 Difference]: Finished difference Result 11054 states and 30979 transitions. [2019-11-20 09:41:36,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 09:41:36,150 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2019-11-20 09:41:36,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:41:36,162 INFO L225 Difference]: With dead ends: 11054 [2019-11-20 09:41:36,163 INFO L226 Difference]: Without dead ends: 6356 [2019-11-20 09:41:36,163 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2019-11-20 09:41:36,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6356 states. [2019-11-20 09:41:36,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6356 to 6356. [2019-11-20 09:41:36,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6356 states. [2019-11-20 09:41:36,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6356 states to 6356 states and 17857 transitions. [2019-11-20 09:41:36,321 INFO L78 Accepts]: Start accepts. Automaton has 6356 states and 17857 transitions. Word has length 35 [2019-11-20 09:41:36,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:41:36,322 INFO L462 AbstractCegarLoop]: Abstraction has 6356 states and 17857 transitions. [2019-11-20 09:41:36,322 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 09:41:36,322 INFO L276 IsEmpty]: Start isEmpty. Operand 6356 states and 17857 transitions. [2019-11-20 09:41:36,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-20 09:41:36,331 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:41:36,331 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:41:36,332 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:41:36,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:41:36,332 INFO L82 PathProgramCache]: Analyzing trace with hash 681825640, now seen corresponding path program 4 times [2019-11-20 09:41:36,333 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:41:36,333 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932112938] [2019-11-20 09:41:36,333 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:41:36,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:41:36,475 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 09:41:36,476 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932112938] [2019-11-20 09:41:36,476 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:41:36,476 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-20 09:41:36,476 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835232355] [2019-11-20 09:41:36,477 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 09:41:36,477 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 09:41:36,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 09:41:36,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-20 09:41:36,477 INFO L87 Difference]: Start difference. First operand 6356 states and 17857 transitions. Second operand 7 states. [2019-11-20 09:41:36,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:41:36,635 INFO L93 Difference]: Finished difference Result 4898 states and 13483 transitions. [2019-11-20 09:41:36,635 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 09:41:36,635 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2019-11-20 09:41:36,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:41:36,635 INFO L225 Difference]: With dead ends: 4898 [2019-11-20 09:41:36,636 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 09:41:36,636 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-11-20 09:41:36,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 09:41:36,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 09:41:36,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 09:41:36,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 09:41:36,637 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2019-11-20 09:41:36,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:41:36,637 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 09:41:36,637 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 09:41:36,637 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 09:41:36,637 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 09:41:36,640 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-20 09:41:36,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 09:41:36 BasicIcfg [2019-11-20 09:41:36,642 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 09:41:36,642 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 09:41:36,643 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 09:41:36,643 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 09:41:36,643 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:41:27" (3/4) ... [2019-11-20 09:41:36,646 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 09:41:36,658 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-20 09:41:36,658 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-20 09:41:36,658 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-20 09:41:36,665 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-20 09:41:36,666 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-20 09:41:36,666 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 09:41:36,717 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d1c409b8-5f09-4dbd-80f3-d465f85612aa/bin/uautomizer/witness.graphml [2019-11-20 09:41:36,720 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 09:41:36,723 INFO L168 Benchmark]: Toolchain (without parser) took 10559.08 ms. Allocated memory was 1.0 GB in the beginning and 1.7 GB in the end (delta: 691.5 MB). Free memory was 943.3 MB in the beginning and 947.8 MB in the end (delta: -4.5 MB). Peak memory consumption was 687.1 MB. Max. memory is 11.5 GB. [2019-11-20 09:41:36,723 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 09:41:36,724 INFO L168 Benchmark]: CACSL2BoogieTranslator took 552.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 943.3 MB in the beginning and 1.1 GB in the end (delta: -169.7 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-20 09:41:36,728 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.98 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 09:41:36,729 INFO L168 Benchmark]: Boogie Preprocessor took 25.19 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-20 09:41:36,729 INFO L168 Benchmark]: RCFGBuilder took 436.09 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: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. [2019-11-20 09:41:36,730 INFO L168 Benchmark]: TraceAbstraction took 9419.14 ms. Allocated memory was 1.2 GB in the beginning and 1.7 GB in the end (delta: 542.6 MB). Free memory was 1.1 GB in the beginning and 967.9 MB in the end (delta: 111.5 MB). Peak memory consumption was 654.2 MB. Max. memory is 11.5 GB. [2019-11-20 09:41:36,730 INFO L168 Benchmark]: Witness Printer took 78.06 ms. Allocated memory is still 1.7 GB. Free memory was 967.9 MB in the beginning and 947.8 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. [2019-11-20 09:41:36,732 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 552.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 943.3 MB in the beginning and 1.1 GB in the end (delta: -169.7 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.98 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. * Boogie Preprocessor took 25.19 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 436.09 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: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 9419.14 ms. Allocated memory was 1.2 GB in the beginning and 1.7 GB in the end (delta: 542.6 MB). Free memory was 1.1 GB in the beginning and 967.9 MB in the end (delta: 111.5 MB). Peak memory consumption was 654.2 MB. Max. memory is 11.5 GB. * Witness Printer took 78.06 ms. Allocated memory is still 1.7 GB. Free memory was 967.9 MB in the beginning and 947.8 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 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: 9.2s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 737 SDtfs, 901 SDslu, 1973 SDs, 0 SdLazy, 264 SolverSat, 106 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.1s 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: 1.9s AutomataMinimizationTime, 7 MinimizatonAttempts, 243 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 239 NumberOfCodeBlocks, 239 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 232 ConstructedInterpolants, 0 QuantifiedInterpolants, 21714 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...