./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe016_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_7e3d8796-2d1e-47cc-8c18-874854a3a590/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_7e3d8796-2d1e-47cc-8c18-874854a3a590/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7e3d8796-2d1e-47cc-8c18-874854a3a590/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7e3d8796-2d1e-47cc-8c18-874854a3a590/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe016_tso.oepc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_7e3d8796-2d1e-47cc-8c18-874854a3a590/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7e3d8796-2d1e-47cc-8c18-874854a3a590/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 70bb90fa0308883bebb2300d1d33f198a55ea50c .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:53:44,751 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:53:44,753 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:53:44,763 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:53:44,763 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:53:44,764 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:53:44,766 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:53:44,768 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:53:44,770 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:53:44,771 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:53:44,771 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:53:44,773 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:53:44,773 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:53:44,774 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:53:44,775 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:53:44,776 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:53:44,777 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:53:44,778 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:53:44,784 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:53:44,787 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:53:44,793 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:53:44,797 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:53:44,801 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:53:44,803 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:53:44,807 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:53:44,808 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:53:44,808 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:53:44,809 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:53:44,811 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:53:44,811 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:53:44,812 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:53:44,813 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:53:44,814 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:53:44,815 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:53:44,815 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:53:44,816 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:53:44,816 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:53:44,816 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:53:44,817 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:53:44,817 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:53:44,818 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:53:44,819 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7e3d8796-2d1e-47cc-8c18-874854a3a590/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:53:44,831 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:53:44,831 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:53:44,832 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:53:44,832 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:53:44,833 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:53:44,833 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:53:44,833 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:53:44,833 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:53:44,834 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:53:44,834 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:53:44,834 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:53:44,834 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:53:44,835 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:53:44,835 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:53:44,835 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:53:44,835 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:53:44,835 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:53:44,836 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:53:44,836 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:53:44,836 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:53:44,836 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:53:44,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:53:44,837 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:53:44,837 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:53:44,837 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:53:44,838 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:53:44,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:53:44,838 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:53:44,838 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_7e3d8796-2d1e-47cc-8c18-874854a3a590/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 -> 70bb90fa0308883bebb2300d1d33f198a55ea50c [2019-11-25 08:53:44,973 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:53:44,980 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:53:44,983 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:53:44,984 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:53:44,985 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:53:44,985 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7e3d8796-2d1e-47cc-8c18-874854a3a590/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe016_tso.oepc.i [2019-11-25 08:53:45,038 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7e3d8796-2d1e-47cc-8c18-874854a3a590/bin/uautomizer/data/b24829fc3/99132a84e2704ee09f233a4f927503d9/FLAG18d0608a1 [2019-11-25 08:53:45,498 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:53:45,498 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7e3d8796-2d1e-47cc-8c18-874854a3a590/sv-benchmarks/c/pthread-wmm/safe016_tso.oepc.i [2019-11-25 08:53:45,517 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7e3d8796-2d1e-47cc-8c18-874854a3a590/bin/uautomizer/data/b24829fc3/99132a84e2704ee09f233a4f927503d9/FLAG18d0608a1 [2019-11-25 08:53:45,533 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7e3d8796-2d1e-47cc-8c18-874854a3a590/bin/uautomizer/data/b24829fc3/99132a84e2704ee09f233a4f927503d9 [2019-11-25 08:53:45,536 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:53:45,538 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:53:45,540 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:53:45,540 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:53:45,544 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:53:45,545 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:53:45" (1/1) ... [2019-11-25 08:53:45,547 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7867e40f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:45, skipping insertion in model container [2019-11-25 08:53:45,547 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:53:45" (1/1) ... [2019-11-25 08:53:45,555 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:53:45,613 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:53:46,027 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:53:46,037 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:53:46,079 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:53:46,147 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:53:46,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:46 WrapperNode [2019-11-25 08:53:46,148 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:53:46,148 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:53:46,149 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:53:46,149 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:53:46,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:46" (1/1) ... [2019-11-25 08:53:46,171 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:46" (1/1) ... [2019-11-25 08:53:46,192 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:53:46,192 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:53:46,192 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:53:46,193 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:53:46,201 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:46" (1/1) ... [2019-11-25 08:53:46,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:46" (1/1) ... [2019-11-25 08:53:46,204 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:46" (1/1) ... [2019-11-25 08:53:46,204 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:46" (1/1) ... [2019-11-25 08:53:46,211 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:46" (1/1) ... [2019-11-25 08:53:46,213 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:46" (1/1) ... [2019-11-25 08:53:46,215 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:46" (1/1) ... [2019-11-25 08:53:46,218 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:53:46,218 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:53:46,219 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:53:46,219 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:53:46,220 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e3d8796-2d1e-47cc-8c18-874854a3a590/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 [2019-11-25 08:53:46,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-25 08:53:46,284 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-25 08:53:46,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:53:46,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:53:46,285 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-25 08:53:46,285 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-25 08:53:46,286 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-25 08:53:46,286 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-25 08:53:46,286 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-25 08:53:46,286 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-25 08:53:46,289 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2019-11-25 08:53:46,289 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2019-11-25 08:53:46,289 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-25 08:53:46,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:53:46,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:53:46,291 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-25 08:53:46,622 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:53:46,622 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-25 08:53:46,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:53:46 BoogieIcfgContainer [2019-11-25 08:53:46,624 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:53:46,625 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:53:46,625 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:53:46,627 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:53:46,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:53:45" (1/3) ... [2019-11-25 08:53:46,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a84f01c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:53:46, skipping insertion in model container [2019-11-25 08:53:46,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:46" (2/3) ... [2019-11-25 08:53:46,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a84f01c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:53:46, skipping insertion in model container [2019-11-25 08:53:46,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:53:46" (3/3) ... [2019-11-25 08:53:46,630 INFO L109 eAbstractionObserver]: Analyzing ICFG safe016_tso.oepc.i [2019-11-25 08:53:46,680 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,680 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,680 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,681 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,681 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,681 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,683 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,683 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,683 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,683 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,684 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,685 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,685 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,686 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,686 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,686 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,687 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,689 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,690 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,690 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,690 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,691 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,691 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,691 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,692 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,693 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,693 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,693 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,694 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,694 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,694 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,695 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,695 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,695 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,696 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,696 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,696 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,697 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,697 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,698 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,698 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,698 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,699 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,699 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,700 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,700 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,700 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,700 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,701 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,701 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,701 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,701 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,701 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,702 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,702 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,703 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,703 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,703 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,703 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,703 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,704 WARN L315 ript$VariableManager]: TermVariabe |P3Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,704 WARN L315 ript$VariableManager]: TermVariabe |P3Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,704 WARN L315 ript$VariableManager]: TermVariabe P3Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,704 WARN L315 ript$VariableManager]: TermVariabe P3Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,705 WARN L315 ript$VariableManager]: TermVariabe |P3Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,705 WARN L315 ript$VariableManager]: TermVariabe |P3Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,705 WARN L315 ript$VariableManager]: TermVariabe |P3Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,706 WARN L315 ript$VariableManager]: TermVariabe |P3Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,706 WARN L315 ript$VariableManager]: TermVariabe P3Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,706 WARN L315 ript$VariableManager]: TermVariabe P3Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,707 WARN L315 ript$VariableManager]: TermVariabe |P3Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,707 WARN L315 ript$VariableManager]: TermVariabe |P3Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:46,753 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-25 08:53:46,753 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:53:46,761 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:53:46,770 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:53:46,786 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:53:46,787 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:53:46,787 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:53:46,787 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:53:46,787 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:53:46,787 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:53:46,787 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:53:46,787 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:53:46,799 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 119 places, 91 transitions [2019-11-25 08:53:47,403 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 5471 states. [2019-11-25 08:53:47,406 INFO L276 IsEmpty]: Start isEmpty. Operand 5471 states. [2019-11-25 08:53:47,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-25 08:53:47,446 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:53:47,447 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] [2019-11-25 08:53:47,448 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:53:47,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:47,454 INFO L82 PathProgramCache]: Analyzing trace with hash 1291502467, now seen corresponding path program 1 times [2019-11-25 08:53:47,463 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:47,464 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338634076] [2019-11-25 08:53:47,464 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:47,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:47,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:47,857 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338634076] [2019-11-25 08:53:47,858 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:53:47,858 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-25 08:53:47,859 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782807117] [2019-11-25 08:53:47,864 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-25 08:53:47,864 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:53:47,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:53:47,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:53:47,880 INFO L87 Difference]: Start difference. First operand 5471 states. Second operand 4 states. [2019-11-25 08:53:48,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:53:48,120 INFO L93 Difference]: Finished difference Result 5708 states and 21933 transitions. [2019-11-25 08:53:48,123 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-25 08:53:48,124 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2019-11-25 08:53:48,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:53:48,183 INFO L225 Difference]: With dead ends: 5708 [2019-11-25 08:53:48,183 INFO L226 Difference]: Without dead ends: 2392 [2019-11-25 08:53:48,185 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 [2019-11-25 08:53:48,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2392 states. [2019-11-25 08:53:48,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2392 to 2392. [2019-11-25 08:53:48,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2392 states. [2019-11-25 08:53:48,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2392 states to 2392 states and 8936 transitions. [2019-11-25 08:53:48,411 INFO L78 Accepts]: Start accepts. Automaton has 2392 states and 8936 transitions. Word has length 34 [2019-11-25 08:53:48,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:53:48,413 INFO L462 AbstractCegarLoop]: Abstraction has 2392 states and 8936 transitions. [2019-11-25 08:53:48,413 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-25 08:53:48,413 INFO L276 IsEmpty]: Start isEmpty. Operand 2392 states and 8936 transitions. [2019-11-25 08:53:48,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-25 08:53:48,419 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:53:48,419 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] [2019-11-25 08:53:48,420 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:53:48,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:48,421 INFO L82 PathProgramCache]: Analyzing trace with hash -1585012355, now seen corresponding path program 1 times [2019-11-25 08:53:48,421 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:48,422 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206560792] [2019-11-25 08:53:48,422 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:48,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:48,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:48,576 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206560792] [2019-11-25 08:53:48,576 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:53:48,576 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-25 08:53:48,576 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338907655] [2019-11-25 08:53:48,578 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-25 08:53:48,578 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:53:48,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-25 08:53:48,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:53:48,579 INFO L87 Difference]: Start difference. First operand 2392 states and 8936 transitions. Second operand 5 states. [2019-11-25 08:53:48,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:53:48,682 INFO L93 Difference]: Finished difference Result 2563 states and 9320 transitions. [2019-11-25 08:53:48,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-25 08:53:48,682 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2019-11-25 08:53:48,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:53:48,706 INFO L225 Difference]: With dead ends: 2563 [2019-11-25 08:53:48,706 INFO L226 Difference]: Without dead ends: 2308 [2019-11-25 08:53:48,707 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 [2019-11-25 08:53:48,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2308 states. [2019-11-25 08:53:48,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2308 to 2308. [2019-11-25 08:53:48,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2308 states. [2019-11-25 08:53:48,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2308 states to 2308 states and 8544 transitions. [2019-11-25 08:53:48,808 INFO L78 Accepts]: Start accepts. Automaton has 2308 states and 8544 transitions. Word has length 35 [2019-11-25 08:53:48,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:53:48,809 INFO L462 AbstractCegarLoop]: Abstraction has 2308 states and 8544 transitions. [2019-11-25 08:53:48,809 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-25 08:53:48,809 INFO L276 IsEmpty]: Start isEmpty. Operand 2308 states and 8544 transitions. [2019-11-25 08:53:48,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-11-25 08:53:48,815 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:53:48,815 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:53:48,815 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:53:48,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:48,816 INFO L82 PathProgramCache]: Analyzing trace with hash -204218135, now seen corresponding path program 1 times [2019-11-25 08:53:48,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:48,816 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992545603] [2019-11-25 08:53:48,816 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:48,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:48,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:48,963 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992545603] [2019-11-25 08:53:48,963 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:53:48,964 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-25 08:53:48,964 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402520840] [2019-11-25 08:53:48,964 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-25 08:53:48,964 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:53:48,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-25 08:53:48,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-25 08:53:48,965 INFO L87 Difference]: Start difference. First operand 2308 states and 8544 transitions. Second operand 6 states. [2019-11-25 08:53:49,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:53:49,081 INFO L93 Difference]: Finished difference Result 2173 states and 7680 transitions. [2019-11-25 08:53:49,081 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:53:49,082 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 36 [2019-11-25 08:53:49,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:53:49,101 INFO L225 Difference]: With dead ends: 2173 [2019-11-25 08:53:49,102 INFO L226 Difference]: Without dead ends: 1930 [2019-11-25 08:53:49,102 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 [2019-11-25 08:53:49,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1930 states. [2019-11-25 08:53:49,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1930 to 1930. [2019-11-25 08:53:49,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1930 states. [2019-11-25 08:53:49,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1930 states to 1930 states and 6906 transitions. [2019-11-25 08:53:49,176 INFO L78 Accepts]: Start accepts. Automaton has 1930 states and 6906 transitions. Word has length 36 [2019-11-25 08:53:49,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:53:49,176 INFO L462 AbstractCegarLoop]: Abstraction has 1930 states and 6906 transitions. [2019-11-25 08:53:49,176 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-25 08:53:49,176 INFO L276 IsEmpty]: Start isEmpty. Operand 1930 states and 6906 transitions. [2019-11-25 08:53:49,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-11-25 08:53:49,186 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:53:49,186 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:53:49,186 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:53:49,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:49,187 INFO L82 PathProgramCache]: Analyzing trace with hash -784314106, now seen corresponding path program 1 times [2019-11-25 08:53:49,187 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:49,188 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332106487] [2019-11-25 08:53:49,188 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:49,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:49,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:49,333 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332106487] [2019-11-25 08:53:49,333 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:53:49,333 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-25 08:53:49,333 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283551357] [2019-11-25 08:53:49,334 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-25 08:53:49,334 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:53:49,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-25 08:53:49,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:53:49,335 INFO L87 Difference]: Start difference. First operand 1930 states and 6906 transitions. Second operand 7 states. [2019-11-25 08:53:49,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:53:49,441 INFO L93 Difference]: Finished difference Result 1363 states and 4530 transitions. [2019-11-25 08:53:49,442 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-25 08:53:49,442 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 37 [2019-11-25 08:53:49,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:53:49,451 INFO L225 Difference]: With dead ends: 1363 [2019-11-25 08:53:49,451 INFO L226 Difference]: Without dead ends: 1174 [2019-11-25 08:53:49,452 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2019-11-25 08:53:49,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1174 states. [2019-11-25 08:53:49,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1174 to 1174. [2019-11-25 08:53:49,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1174 states. [2019-11-25 08:53:49,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1174 states to 1174 states and 3882 transitions. [2019-11-25 08:53:49,488 INFO L78 Accepts]: Start accepts. Automaton has 1174 states and 3882 transitions. Word has length 37 [2019-11-25 08:53:49,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:53:49,489 INFO L462 AbstractCegarLoop]: Abstraction has 1174 states and 3882 transitions. [2019-11-25 08:53:49,489 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-25 08:53:49,489 INFO L276 IsEmpty]: Start isEmpty. Operand 1174 states and 3882 transitions. [2019-11-25 08:53:49,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-25 08:53:49,492 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:53:49,492 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:53:49,492 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:53:49,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:49,492 INFO L82 PathProgramCache]: Analyzing trace with hash -1398658812, now seen corresponding path program 1 times [2019-11-25 08:53:49,493 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:49,493 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847128721] [2019-11-25 08:53:49,493 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:49,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:49,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:49,632 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847128721] [2019-11-25 08:53:49,632 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:53:49,632 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-25 08:53:49,632 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759956797] [2019-11-25 08:53:49,632 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-25 08:53:49,633 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:53:49,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-25 08:53:49,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-25 08:53:49,633 INFO L87 Difference]: Start difference. First operand 1174 states and 3882 transitions. Second operand 6 states. [2019-11-25 08:53:49,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:53:49,730 INFO L93 Difference]: Finished difference Result 1903 states and 6303 transitions. [2019-11-25 08:53:49,731 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-25 08:53:49,731 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2019-11-25 08:53:49,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:53:49,740 INFO L225 Difference]: With dead ends: 1903 [2019-11-25 08:53:49,740 INFO L226 Difference]: Without dead ends: 1066 [2019-11-25 08:53:49,740 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-25 08:53:49,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2019-11-25 08:53:49,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1066. [2019-11-25 08:53:49,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1066 states. [2019-11-25 08:53:49,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 3498 transitions. [2019-11-25 08:53:49,773 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 3498 transitions. Word has length 38 [2019-11-25 08:53:49,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:53:49,773 INFO L462 AbstractCegarLoop]: Abstraction has 1066 states and 3498 transitions. [2019-11-25 08:53:49,773 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-25 08:53:49,774 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 3498 transitions. [2019-11-25 08:53:49,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-25 08:53:49,776 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:53:49,776 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:53:49,776 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:53:49,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:49,777 INFO L82 PathProgramCache]: Analyzing trace with hash -856614336, now seen corresponding path program 2 times [2019-11-25 08:53:49,777 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:49,777 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832671601] [2019-11-25 08:53:49,777 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:49,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:49,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:49,980 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832671601] [2019-11-25 08:53:49,980 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:53:49,980 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-25 08:53:49,980 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972404450] [2019-11-25 08:53:49,981 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-25 08:53:49,981 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:53:49,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-25 08:53:49,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-25 08:53:49,981 INFO L87 Difference]: Start difference. First operand 1066 states and 3498 transitions. Second operand 8 states. [2019-11-25 08:53:50,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:53:50,188 INFO L93 Difference]: Finished difference Result 2407 states and 8022 transitions. [2019-11-25 08:53:50,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-25 08:53:50,189 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 38 [2019-11-25 08:53:50,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:53:50,198 INFO L225 Difference]: With dead ends: 2407 [2019-11-25 08:53:50,199 INFO L226 Difference]: Without dead ends: 1177 [2019-11-25 08:53:50,199 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2019-11-25 08:53:50,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1177 states. [2019-11-25 08:53:50,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1177 to 1015. [2019-11-25 08:53:50,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1015 states. [2019-11-25 08:53:50,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 3330 transitions. [2019-11-25 08:53:50,231 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 3330 transitions. Word has length 38 [2019-11-25 08:53:50,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:53:50,231 INFO L462 AbstractCegarLoop]: Abstraction has 1015 states and 3330 transitions. [2019-11-25 08:53:50,232 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-25 08:53:50,232 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 3330 transitions. [2019-11-25 08:53:50,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-25 08:53:50,234 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:53:50,234 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:53:50,235 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:53:50,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:50,235 INFO L82 PathProgramCache]: Analyzing trace with hash -494596252, now seen corresponding path program 3 times [2019-11-25 08:53:50,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:50,235 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038406713] [2019-11-25 08:53:50,236 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:50,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:50,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:50,369 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038406713] [2019-11-25 08:53:50,369 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:53:50,370 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-25 08:53:50,370 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505905654] [2019-11-25 08:53:50,370 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-25 08:53:50,370 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:53:50,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-25 08:53:50,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:53:50,371 INFO L87 Difference]: Start difference. First operand 1015 states and 3330 transitions. Second operand 7 states. [2019-11-25 08:53:50,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:53:50,477 INFO L93 Difference]: Finished difference Result 1537 states and 5133 transitions. [2019-11-25 08:53:50,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:53:50,478 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2019-11-25 08:53:50,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:53:50,487 INFO L225 Difference]: With dead ends: 1537 [2019-11-25 08:53:50,488 INFO L226 Difference]: Without dead ends: 1003 [2019-11-25 08:53:50,488 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2019-11-25 08:53:50,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2019-11-25 08:53:50,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 1003. [2019-11-25 08:53:50,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1003 states. [2019-11-25 08:53:50,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 3300 transitions. [2019-11-25 08:53:50,518 INFO L78 Accepts]: Start accepts. Automaton has 1003 states and 3300 transitions. Word has length 38 [2019-11-25 08:53:50,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:53:50,518 INFO L462 AbstractCegarLoop]: Abstraction has 1003 states and 3300 transitions. [2019-11-25 08:53:50,519 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-25 08:53:50,519 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states and 3300 transitions. [2019-11-25 08:53:50,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-25 08:53:50,521 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:53:50,521 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:53:50,521 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:53:50,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:50,522 INFO L82 PathProgramCache]: Analyzing trace with hash -1846013888, now seen corresponding path program 4 times [2019-11-25 08:53:50,522 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:50,524 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154091900] [2019-11-25 08:53:50,524 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:50,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:50,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:50,654 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154091900] [2019-11-25 08:53:50,654 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:53:50,654 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-25 08:53:50,655 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958157259] [2019-11-25 08:53:50,655 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-25 08:53:50,655 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:53:50,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-25 08:53:50,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-25 08:53:50,656 INFO L87 Difference]: Start difference. First operand 1003 states and 3300 transitions. Second operand 8 states. [2019-11-25 08:53:50,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:53:50,791 INFO L93 Difference]: Finished difference Result 1624 states and 5406 transitions. [2019-11-25 08:53:50,792 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-25 08:53:50,792 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 38 [2019-11-25 08:53:50,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:53:50,800 INFO L225 Difference]: With dead ends: 1624 [2019-11-25 08:53:50,801 INFO L226 Difference]: Without dead ends: 931 [2019-11-25 08:53:50,801 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2019-11-25 08:53:50,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2019-11-25 08:53:50,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 931. [2019-11-25 08:53:50,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 931 states. [2019-11-25 08:53:50,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 931 states to 931 states and 3054 transitions. [2019-11-25 08:53:50,828 INFO L78 Accepts]: Start accepts. Automaton has 931 states and 3054 transitions. Word has length 38 [2019-11-25 08:53:50,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:53:50,829 INFO L462 AbstractCegarLoop]: Abstraction has 931 states and 3054 transitions. [2019-11-25 08:53:50,829 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-25 08:53:50,830 INFO L276 IsEmpty]: Start isEmpty. Operand 931 states and 3054 transitions. [2019-11-25 08:53:50,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-25 08:53:50,832 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:53:50,832 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:53:50,832 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:53:50,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:50,832 INFO L82 PathProgramCache]: Analyzing trace with hash -1207360626, now seen corresponding path program 5 times [2019-11-25 08:53:50,833 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:50,833 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858247167] [2019-11-25 08:53:50,833 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:50,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:50,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:50,954 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858247167] [2019-11-25 08:53:50,954 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:53:50,954 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-25 08:53:50,954 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469527488] [2019-11-25 08:53:50,955 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-25 08:53:50,955 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:53:50,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-25 08:53:50,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:53:50,955 INFO L87 Difference]: Start difference. First operand 931 states and 3054 transitions. Second operand 7 states. [2019-11-25 08:53:51,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:53:51,035 INFO L93 Difference]: Finished difference Result 769 states and 2460 transitions. [2019-11-25 08:53:51,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:53:51,035 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2019-11-25 08:53:51,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:53:51,035 INFO L225 Difference]: With dead ends: 769 [2019-11-25 08:53:51,035 INFO L226 Difference]: Without dead ends: 0 [2019-11-25 08:53:51,036 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-11-25 08:53:51,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-25 08:53:51,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-25 08:53:51,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-25 08:53:51,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-25 08:53:51,036 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 38 [2019-11-25 08:53:51,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:53:51,036 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:53:51,036 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-25 08:53:51,037 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:53:51,037 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-25 08:53:51,039 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-25 08:53:51,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:53:51 BasicIcfg [2019-11-25 08:53:51,042 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:53:51,042 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:53:51,042 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:53:51,042 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:53:51,043 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:53:46" (3/4) ... [2019-11-25 08:53:51,046 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-25 08:53:51,052 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-25 08:53:51,052 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-25 08:53:51,052 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-25 08:53:51,053 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2019-11-25 08:53:51,057 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2019-11-25 08:53:51,057 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-25 08:53:51,058 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-25 08:53:51,097 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7e3d8796-2d1e-47cc-8c18-874854a3a590/bin/uautomizer/witness.graphml [2019-11-25 08:53:51,098 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:53:51,100 INFO L168 Benchmark]: Toolchain (without parser) took 5562.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 182.5 MB). Free memory was 946.1 MB in the beginning and 948.8 MB in the end (delta: -2.7 MB). Peak memory consumption was 179.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:51,100 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:53:51,101 INFO L168 Benchmark]: CACSL2BoogieTranslator took 608.42 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -122.1 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:51,101 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.63 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:53:51,102 INFO L168 Benchmark]: Boogie Preprocessor took 25.89 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:51,102 INFO L168 Benchmark]: RCFGBuilder took 405.34 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:51,103 INFO L168 Benchmark]: TraceAbstraction took 4417.11 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 86.0 MB). Free memory was 1.0 GB in the beginning and 958.1 MB in the end (delta: 82.3 MB). Peak memory consumption was 168.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:51,103 INFO L168 Benchmark]: Witness Printer took 55.99 ms. Allocated memory is still 1.2 GB. Free memory was 958.1 MB in the beginning and 948.8 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:51,105 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 608.42 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -122.1 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.63 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.89 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 405.34 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4417.11 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 86.0 MB). Free memory was 1.0 GB in the beginning and 958.1 MB in the end (delta: 82.3 MB). Peak memory consumption was 168.3 MB. Max. memory is 11.5 GB. * Witness Printer took 55.99 ms. Allocated memory is still 1.2 GB. Free memory was 958.1 MB in the beginning and 948.8 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 17 procedures, 111 locations, 1 error locations. Result: SAFE, OverallTime: 4.2s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 558 SDtfs, 897 SDslu, 1675 SDs, 0 SdLazy, 217 SolverSat, 99 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 90 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5471occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 9 MinimizatonAttempts, 162 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 332 NumberOfCodeBlocks, 332 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 323 ConstructedInterpolants, 0 QuantifiedInterpolants, 33285 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...