./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 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ffc571f7-f2fc-4bfc-99b8-082ef3dc632c/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ffc571f7-f2fc-4bfc-99b8-082ef3dc632c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ffc571f7-f2fc-4bfc-99b8-082ef3dc632c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ffc571f7-f2fc-4bfc-99b8-082ef3dc632c/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe016_tso.oepc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_ffc571f7-f2fc-4bfc-99b8-082ef3dc632c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ffc571f7-f2fc-4bfc-99b8-082ef3dc632c/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 01a2c96cfabf5ea27d44ac8a8fb1ac0f39d36a0a ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 15:25:29,689 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:25:29,692 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:25:29,753 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:25:29,766 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:25:29,767 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:25:29,769 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:25:29,772 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:25:29,774 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:25:29,775 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:25:29,777 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:25:29,778 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:25:29,779 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:25:29,780 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:25:29,782 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:25:29,783 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:25:29,784 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:25:29,785 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:25:29,788 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:25:29,790 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:25:29,792 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:25:29,794 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:25:29,795 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:25:29,796 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:25:29,800 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:25:29,800 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:25:29,801 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:25:29,802 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:25:29,802 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:25:29,804 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:25:29,804 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:25:29,805 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:25:29,806 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:25:29,807 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:25:29,808 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:25:29,809 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:25:29,810 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:25:29,810 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:25:29,810 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:25:29,812 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:25:29,812 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:25:29,813 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ffc571f7-f2fc-4bfc-99b8-082ef3dc632c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 15:25:29,838 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:25:29,838 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:25:29,839 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:25:29,840 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:25:29,840 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:25:29,840 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:25:29,841 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:25:29,841 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:25:29,841 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:25:29,841 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:25:29,842 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:25:29,842 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:25:29,842 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:25:29,842 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:25:29,842 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:25:29,843 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:25:29,843 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:25:29,843 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:25:29,843 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:25:29,844 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:25:29,844 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:25:29,844 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:25:29,844 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:25:29,844 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:25:29,845 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:25:29,845 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:25:29,845 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 15:25:29,845 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:25:29,846 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:25:29,846 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_ffc571f7-f2fc-4bfc-99b8-082ef3dc632c/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ffc571f7-f2fc-4bfc-99b8-082ef3dc632c/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01a2c96cfabf5ea27d44ac8a8fb1ac0f39d36a0a [2020-12-01 15:25:30,102 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:25:30,142 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:25:30,146 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:25:30,147 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:25:30,148 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:25:30,150 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ffc571f7-f2fc-4bfc-99b8-082ef3dc632c/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe016_tso.oepc.i [2020-12-01 15:25:30,225 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ffc571f7-f2fc-4bfc-99b8-082ef3dc632c/bin/uautomizer/data/a421f0f34/b2e27fef816942ccbb8740964288a31a/FLAGd97c692fe [2020-12-01 15:25:30,804 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:25:30,805 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ffc571f7-f2fc-4bfc-99b8-082ef3dc632c/sv-benchmarks/c/pthread-wmm/safe016_tso.oepc.i [2020-12-01 15:25:30,832 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ffc571f7-f2fc-4bfc-99b8-082ef3dc632c/bin/uautomizer/data/a421f0f34/b2e27fef816942ccbb8740964288a31a/FLAGd97c692fe [2020-12-01 15:25:31,084 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ffc571f7-f2fc-4bfc-99b8-082ef3dc632c/bin/uautomizer/data/a421f0f34/b2e27fef816942ccbb8740964288a31a [2020-12-01 15:25:31,087 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:25:31,088 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:25:31,099 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:25:31,099 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:25:31,102 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:25:31,104 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:25:31" (1/1) ... [2020-12-01 15:25:31,107 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a239ea9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:25:31, skipping insertion in model container [2020-12-01 15:25:31,107 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:25:31" (1/1) ... [2020-12-01 15:25:31,115 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:25:31,177 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:25:31,573 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:25:31,582 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:25:31,622 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:25:31,720 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:25:31,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:25:31 WrapperNode [2020-12-01 15:25:31,721 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:25:31,722 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:25:31,723 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:25:31,723 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:25:31,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:25:31" (1/1) ... [2020-12-01 15:25:31,745 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:25:31" (1/1) ... [2020-12-01 15:25:31,766 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:25:31,767 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:25:31,767 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:25:31,768 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:25:31,776 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:25:31" (1/1) ... [2020-12-01 15:25:31,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:25:31" (1/1) ... [2020-12-01 15:25:31,779 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:25:31" (1/1) ... [2020-12-01 15:25:31,780 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:25:31" (1/1) ... [2020-12-01 15:25:31,787 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:25:31" (1/1) ... [2020-12-01 15:25:31,789 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:25:31" (1/1) ... [2020-12-01 15:25:31,791 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:25:31" (1/1) ... [2020-12-01 15:25:31,794 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:25:31,795 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:25:31,795 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:25:31,796 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:25:31,797 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:25:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ffc571f7-f2fc-4bfc-99b8-082ef3dc632c/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 [2020-12-01 15:25:31,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 15:25:31,899 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-01 15:25:31,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:25:31,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 15:25:31,901 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-01 15:25:31,901 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-01 15:25:31,902 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-01 15:25:31,902 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-01 15:25:31,902 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-01 15:25:31,903 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-01 15:25:31,903 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-12-01 15:25:31,903 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-12-01 15:25:31,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:25:31,904 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-01 15:25:31,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:25:31,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:25:31,906 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-01 15:25:32,255 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:25:32,256 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-12-01 15:25:32,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:25:32 BoogieIcfgContainer [2020-12-01 15:25:32,258 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:25:32,259 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:25:32,259 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:25:32,266 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:25:32,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:25:31" (1/3) ... [2020-12-01 15:25:32,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57f5adbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:25:32, skipping insertion in model container [2020-12-01 15:25:32,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:25:31" (2/3) ... [2020-12-01 15:25:32,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57f5adbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:25:32, skipping insertion in model container [2020-12-01 15:25:32,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:25:32" (3/3) ... [2020-12-01 15:25:32,269 INFO L111 eAbstractionObserver]: Analyzing ICFG safe016_tso.oepc.i [2020-12-01 15:25:32,284 WARN L169 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-01 15:25:32,284 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:25:32,287 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 15:25:32,288 INFO L354 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-01 15:25:32,327 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,328 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,328 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,328 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,329 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,329 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,329 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,329 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,330 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,330 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,331 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,331 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,331 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,332 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,332 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,332 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,332 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,333 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,333 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,333 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,334 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,334 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,334 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,335 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,335 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,336 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,336 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,336 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,336 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,337 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,337 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,337 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,338 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,338 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,338 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,339 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,339 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,340 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,340 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,340 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,340 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,341 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,341 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,341 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,342 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,342 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,343 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,343 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,345 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,346 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,346 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,346 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,351 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,351 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,351 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,352 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,355 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,355 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,355 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,355 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,358 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,358 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,370 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,370 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:25:32,373 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-01 15:25:32,384 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-12-01 15:25:32,405 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:25:32,405 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:25:32,405 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:25:32,406 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:25:32,406 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:25:32,406 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:25:32,406 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:25:32,406 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:25:32,419 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-01 15:25:32,421 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 99 places, 89 transitions, 198 flow [2020-12-01 15:25:32,423 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 99 places, 89 transitions, 198 flow [2020-12-01 15:25:32,425 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 99 places, 89 transitions, 198 flow [2020-12-01 15:25:32,475 INFO L129 PetriNetUnfolder]: 3/85 cut-off events. [2020-12-01 15:25:32,475 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-12-01 15:25:32,480 INFO L84 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 85 events. 3/85 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 72 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2020-12-01 15:25:32,484 INFO L116 LiptonReduction]: Number of co-enabled transitions 2042 [2020-12-01 15:25:36,154 WARN L197 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-12-01 15:25:36,260 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-12-01 15:25:36,464 WARN L197 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-12-01 15:25:36,692 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-12-01 15:25:36,848 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 50 [2020-12-01 15:25:37,006 INFO L131 LiptonReduction]: Checked pairs total: 4334 [2020-12-01 15:25:37,007 INFO L133 LiptonReduction]: Total number of compositions: 82 [2020-12-01 15:25:37,013 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 26 transitions, 72 flow [2020-12-01 15:25:37,062 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 706 states. [2020-12-01 15:25:37,064 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states. [2020-12-01 15:25:37,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 15:25:37,073 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:25:37,074 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:25:37,074 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:25:37,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:25:37,079 INFO L82 PathProgramCache]: Analyzing trace with hash -782796091, now seen corresponding path program 1 times [2020-12-01 15:25:37,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:25:37,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061547894] [2020-12-01 15:25:37,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:25:37,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:25:37,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:25:37,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061547894] [2020-12-01 15:25:37,297 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:25:37,297 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-01 15:25:37,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960591977] [2020-12-01 15:25:37,302 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:25:37,302 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:25:37,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:25:37,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:25:37,317 INFO L87 Difference]: Start difference. First operand 706 states. Second operand 3 states. [2020-12-01 15:25:37,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:25:37,399 INFO L93 Difference]: Finished difference Result 670 states and 2295 transitions. [2020-12-01 15:25:37,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:25:37,401 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-12-01 15:25:37,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:25:37,430 INFO L225 Difference]: With dead ends: 670 [2020-12-01 15:25:37,430 INFO L226 Difference]: Without dead ends: 526 [2020-12-01 15:25:37,432 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:25:37,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-12-01 15:25:37,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2020-12-01 15:25:37,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2020-12-01 15:25:37,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 1743 transitions. [2020-12-01 15:25:37,554 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 1743 transitions. Word has length 10 [2020-12-01 15:25:37,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:25:37,555 INFO L481 AbstractCegarLoop]: Abstraction has 526 states and 1743 transitions. [2020-12-01 15:25:37,555 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:25:37,555 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 1743 transitions. [2020-12-01 15:25:37,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 15:25:37,558 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:25:37,558 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:25:37,558 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 15:25:37,558 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:25:37,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:25:37,559 INFO L82 PathProgramCache]: Analyzing trace with hash 1488897790, now seen corresponding path program 1 times [2020-12-01 15:25:37,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:25:37,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282590502] [2020-12-01 15:25:37,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:25:37,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:25:37,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:25:37,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282590502] [2020-12-01 15:25:37,634 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:25:37,634 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:25:37,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950769147] [2020-12-01 15:25:37,635 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 15:25:37,636 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:25:37,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:25:37,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:25:37,637 INFO L87 Difference]: Start difference. First operand 526 states and 1743 transitions. Second operand 4 states. [2020-12-01 15:25:37,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:25:37,684 INFO L93 Difference]: Finished difference Result 950 states and 2916 transitions. [2020-12-01 15:25:37,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-01 15:25:37,686 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-12-01 15:25:37,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:25:37,696 INFO L225 Difference]: With dead ends: 950 [2020-12-01 15:25:37,696 INFO L226 Difference]: Without dead ends: 430 [2020-12-01 15:25:37,697 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:25:37,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2020-12-01 15:25:37,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 394. [2020-12-01 15:25:37,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-12-01 15:25:37,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1156 transitions. [2020-12-01 15:25:37,749 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 1156 transitions. Word has length 11 [2020-12-01 15:25:37,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:25:37,750 INFO L481 AbstractCegarLoop]: Abstraction has 394 states and 1156 transitions. [2020-12-01 15:25:37,750 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 15:25:37,750 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 1156 transitions. [2020-12-01 15:25:37,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 15:25:37,759 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:25:37,760 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:25:37,760 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-01 15:25:37,760 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:25:37,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:25:37,761 INFO L82 PathProgramCache]: Analyzing trace with hash -647802977, now seen corresponding path program 1 times [2020-12-01 15:25:37,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:25:37,762 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375798110] [2020-12-01 15:25:37,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:25:37,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:25:37,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:25:37,836 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375798110] [2020-12-01 15:25:37,836 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:25:37,836 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-01 15:25:37,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536597227] [2020-12-01 15:25:37,837 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:25:37,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:25:37,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:25:37,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:25:37,838 INFO L87 Difference]: Start difference. First operand 394 states and 1156 transitions. Second operand 3 states. [2020-12-01 15:25:37,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:25:37,845 INFO L93 Difference]: Finished difference Result 376 states and 1087 transitions. [2020-12-01 15:25:37,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:25:37,847 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-12-01 15:25:37,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:25:37,850 INFO L225 Difference]: With dead ends: 376 [2020-12-01 15:25:37,850 INFO L226 Difference]: Without dead ends: 376 [2020-12-01 15:25:37,851 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:25:37,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2020-12-01 15:25:37,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 376. [2020-12-01 15:25:37,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2020-12-01 15:25:37,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 1087 transitions. [2020-12-01 15:25:37,867 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 1087 transitions. Word has length 12 [2020-12-01 15:25:37,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:25:37,868 INFO L481 AbstractCegarLoop]: Abstraction has 376 states and 1087 transitions. [2020-12-01 15:25:37,868 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:25:37,868 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 1087 transitions. [2020-12-01 15:25:37,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 15:25:37,870 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:25:37,870 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:25:37,870 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-01 15:25:37,871 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:25:37,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:25:37,873 INFO L82 PathProgramCache]: Analyzing trace with hash 1787336884, now seen corresponding path program 1 times [2020-12-01 15:25:37,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:25:37,874 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993659892] [2020-12-01 15:25:37,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:25:37,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:25:37,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:25:37,947 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993659892] [2020-12-01 15:25:37,947 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:25:37,947 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:25:37,947 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085257764] [2020-12-01 15:25:37,948 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 15:25:37,948 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:25:37,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:25:37,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:25:37,949 INFO L87 Difference]: Start difference. First operand 376 states and 1087 transitions. Second operand 4 states. [2020-12-01 15:25:37,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:25:37,969 INFO L93 Difference]: Finished difference Result 494 states and 1370 transitions. [2020-12-01 15:25:37,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 15:25:37,969 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-12-01 15:25:37,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:25:37,972 INFO L225 Difference]: With dead ends: 494 [2020-12-01 15:25:37,972 INFO L226 Difference]: Without dead ends: 254 [2020-12-01 15:25:37,972 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:25:37,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-12-01 15:25:37,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 254. [2020-12-01 15:25:37,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-12-01 15:25:37,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 707 transitions. [2020-12-01 15:25:37,983 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 707 transitions. Word has length 13 [2020-12-01 15:25:37,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:25:37,984 INFO L481 AbstractCegarLoop]: Abstraction has 254 states and 707 transitions. [2020-12-01 15:25:37,984 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 15:25:37,984 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 707 transitions. [2020-12-01 15:25:37,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 15:25:37,985 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:25:37,985 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:25:37,985 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-01 15:25:37,985 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:25:37,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:25:37,986 INFO L82 PathProgramCache]: Analyzing trace with hash 238144508, now seen corresponding path program 1 times [2020-12-01 15:25:37,987 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:25:37,987 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461964813] [2020-12-01 15:25:37,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:25:38,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:25:38,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:25:38,058 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461964813] [2020-12-01 15:25:38,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:25:38,059 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:25:38,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164183662] [2020-12-01 15:25:38,059 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 15:25:38,060 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:25:38,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:25:38,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:25:38,061 INFO L87 Difference]: Start difference. First operand 254 states and 707 transitions. Second operand 4 states. [2020-12-01 15:25:38,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:25:38,096 INFO L93 Difference]: Finished difference Result 315 states and 812 transitions. [2020-12-01 15:25:38,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-01 15:25:38,096 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-12-01 15:25:38,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:25:38,098 INFO L225 Difference]: With dead ends: 315 [2020-12-01 15:25:38,099 INFO L226 Difference]: Without dead ends: 230 [2020-12-01 15:25:38,099 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:25:38,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2020-12-01 15:25:38,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2020-12-01 15:25:38,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-12-01 15:25:38,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 601 transitions. [2020-12-01 15:25:38,109 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 601 transitions. Word has length 14 [2020-12-01 15:25:38,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:25:38,109 INFO L481 AbstractCegarLoop]: Abstraction has 230 states and 601 transitions. [2020-12-01 15:25:38,110 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 15:25:38,110 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 601 transitions. [2020-12-01 15:25:38,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 15:25:38,111 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:25:38,111 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:25:38,111 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-01 15:25:38,111 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:25:38,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:25:38,112 INFO L82 PathProgramCache]: Analyzing trace with hash 243922642, now seen corresponding path program 1 times [2020-12-01 15:25:38,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:25:38,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504561860] [2020-12-01 15:25:38,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:25:38,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:25:38,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:25:38,194 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504561860] [2020-12-01 15:25:38,195 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:25:38,195 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:25:38,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013013572] [2020-12-01 15:25:38,196 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-01 15:25:38,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:25:38,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-01 15:25:38,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:25:38,202 INFO L87 Difference]: Start difference. First operand 230 states and 601 transitions. Second operand 5 states. [2020-12-01 15:25:38,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:25:38,280 INFO L93 Difference]: Finished difference Result 246 states and 585 transitions. [2020-12-01 15:25:38,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-01 15:25:38,281 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-12-01 15:25:38,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:25:38,283 INFO L225 Difference]: With dead ends: 246 [2020-12-01 15:25:38,284 INFO L226 Difference]: Without dead ends: 178 [2020-12-01 15:25:38,284 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:25:38,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-12-01 15:25:38,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2020-12-01 15:25:38,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-12-01 15:25:38,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 414 transitions. [2020-12-01 15:25:38,291 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 414 transitions. Word has length 15 [2020-12-01 15:25:38,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:25:38,292 INFO L481 AbstractCegarLoop]: Abstraction has 178 states and 414 transitions. [2020-12-01 15:25:38,292 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-01 15:25:38,292 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 414 transitions. [2020-12-01 15:25:38,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-01 15:25:38,293 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:25:38,293 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:25:38,294 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-01 15:25:38,294 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:25:38,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:25:38,296 INFO L82 PathProgramCache]: Analyzing trace with hash -1046603743, now seen corresponding path program 1 times [2020-12-01 15:25:38,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:25:38,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388366890] [2020-12-01 15:25:38,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:25:38,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:25:38,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:25:38,405 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388366890] [2020-12-01 15:25:38,405 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:25:38,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-01 15:25:38,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450451333] [2020-12-01 15:25:38,406 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-01 15:25:38,407 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:25:38,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-01 15:25:38,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:25:38,408 INFO L87 Difference]: Start difference. First operand 178 states and 414 transitions. Second operand 6 states. [2020-12-01 15:25:38,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:25:38,467 INFO L93 Difference]: Finished difference Result 171 states and 376 transitions. [2020-12-01 15:25:38,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-01 15:25:38,467 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-12-01 15:25:38,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:25:38,468 INFO L225 Difference]: With dead ends: 171 [2020-12-01 15:25:38,469 INFO L226 Difference]: Without dead ends: 137 [2020-12-01 15:25:38,473 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:25:38,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2020-12-01 15:25:38,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2020-12-01 15:25:38,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-12-01 15:25:38,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 301 transitions. [2020-12-01 15:25:38,479 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 301 transitions. Word has length 16 [2020-12-01 15:25:38,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:25:38,479 INFO L481 AbstractCegarLoop]: Abstraction has 137 states and 301 transitions. [2020-12-01 15:25:38,479 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-01 15:25:38,479 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 301 transitions. [2020-12-01 15:25:38,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-01 15:25:38,480 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:25:38,487 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:25:38,488 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-01 15:25:38,488 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:25:38,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:25:38,488 INFO L82 PathProgramCache]: Analyzing trace with hash 1563997083, now seen corresponding path program 1 times [2020-12-01 15:25:38,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:25:38,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820430542] [2020-12-01 15:25:38,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:25:38,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:25:38,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:25:38,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820430542] [2020-12-01 15:25:38,583 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:25:38,583 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-01 15:25:38,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619082902] [2020-12-01 15:25:38,584 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-01 15:25:38,584 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:25:38,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-01 15:25:38,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:25:38,585 INFO L87 Difference]: Start difference. First operand 137 states and 301 transitions. Second operand 7 states. [2020-12-01 15:25:38,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:25:38,646 INFO L93 Difference]: Finished difference Result 132 states and 289 transitions. [2020-12-01 15:25:38,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-01 15:25:38,646 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-12-01 15:25:38,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:25:38,647 INFO L225 Difference]: With dead ends: 132 [2020-12-01 15:25:38,647 INFO L226 Difference]: Without dead ends: 51 [2020-12-01 15:25:38,647 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-12-01 15:25:38,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-12-01 15:25:38,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-12-01 15:25:38,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-12-01 15:25:38,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 97 transitions. [2020-12-01 15:25:38,650 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 97 transitions. Word has length 18 [2020-12-01 15:25:38,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:25:38,650 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 97 transitions. [2020-12-01 15:25:38,650 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-01 15:25:38,651 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 97 transitions. [2020-12-01 15:25:38,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-01 15:25:38,651 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:25:38,651 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:25:38,651 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-01 15:25:38,652 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:25:38,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:25:38,652 INFO L82 PathProgramCache]: Analyzing trace with hash -299924038, now seen corresponding path program 1 times [2020-12-01 15:25:38,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:25:38,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618130996] [2020-12-01 15:25:38,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:25:38,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:25:38,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:25:38,679 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618130996] [2020-12-01 15:25:38,679 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:25:38,679 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:25:38,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002227612] [2020-12-01 15:25:38,680 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:25:38,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:25:38,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:25:38,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:25:38,681 INFO L87 Difference]: Start difference. First operand 51 states and 97 transitions. Second operand 3 states. [2020-12-01 15:25:38,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:25:38,686 INFO L93 Difference]: Finished difference Result 50 states and 96 transitions. [2020-12-01 15:25:38,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:25:38,686 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2020-12-01 15:25:38,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:25:38,687 INFO L225 Difference]: With dead ends: 50 [2020-12-01 15:25:38,687 INFO L226 Difference]: Without dead ends: 0 [2020-12-01 15:25:38,687 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:25:38,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-01 15:25:38,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-01 15:25:38,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-01 15:25:38,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-01 15:25:38,688 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-12-01 15:25:38,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:25:38,688 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:25:38,688 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:25:38,688 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-01 15:25:38,689 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 15:25:38,689 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-01 15:25:38,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:25:38 BasicIcfg [2020-12-01 15:25:38,692 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:25:38,692 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:25:38,693 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:25:38,693 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:25:38,693 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:25:32" (3/4) ... [2020-12-01 15:25:38,696 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 15:25:38,702 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-12-01 15:25:38,702 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-12-01 15:25:38,703 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-12-01 15:25:38,703 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2020-12-01 15:25:38,708 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2020-12-01 15:25:38,708 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-01 15:25:38,708 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 15:25:38,709 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 15:25:38,766 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ffc571f7-f2fc-4bfc-99b8-082ef3dc632c/bin/uautomizer/witness.graphml [2020-12-01 15:25:38,766 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:25:38,768 INFO L168 Benchmark]: Toolchain (without parser) took 7678.73 ms. Allocated memory was 109.1 MB in the beginning and 209.7 MB in the end (delta: 100.7 MB). Free memory was 80.0 MB in the beginning and 119.3 MB in the end (delta: -39.3 MB). Peak memory consumption was 60.9 MB. Max. memory is 16.1 GB. [2020-12-01 15:25:38,768 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 77.6 MB. Free memory is still 36.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:25:38,768 INFO L168 Benchmark]: CACSL2BoogieTranslator took 623.06 ms. Allocated memory is still 109.1 MB. Free memory was 79.7 MB in the beginning and 65.5 MB in the end (delta: 14.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-01 15:25:38,769 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.11 ms. Allocated memory is still 109.1 MB. Free memory was 65.0 MB in the beginning and 63.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:25:38,769 INFO L168 Benchmark]: Boogie Preprocessor took 27.46 ms. Allocated memory is still 109.1 MB. Free memory was 63.4 MB in the beginning and 61.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:25:38,773 INFO L168 Benchmark]: RCFGBuilder took 462.71 ms. Allocated memory is still 109.1 MB. Free memory was 61.8 MB in the beginning and 76.6 MB in the end (delta: -14.8 MB). Peak memory consumption was 16.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:25:38,774 INFO L168 Benchmark]: TraceAbstraction took 6432.72 ms. Allocated memory was 109.1 MB in the beginning and 209.7 MB in the end (delta: 100.7 MB). Free memory was 75.9 MB in the beginning and 122.5 MB in the end (delta: -46.5 MB). Peak memory consumption was 53.3 MB. Max. memory is 16.1 GB. [2020-12-01 15:25:38,774 INFO L168 Benchmark]: Witness Printer took 74.16 ms. Allocated memory is still 209.7 MB. Free memory was 122.5 MB in the beginning and 119.3 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:25:38,776 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 77.6 MB. Free memory is still 36.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 623.06 ms. Allocated memory is still 109.1 MB. Free memory was 79.7 MB in the beginning and 65.5 MB in the end (delta: 14.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 44.11 ms. Allocated memory is still 109.1 MB. Free memory was 65.0 MB in the beginning and 63.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.46 ms. Allocated memory is still 109.1 MB. Free memory was 63.4 MB in the beginning and 61.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 462.71 ms. Allocated memory is still 109.1 MB. Free memory was 61.8 MB in the beginning and 76.6 MB in the end (delta: -14.8 MB). Peak memory consumption was 16.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6432.72 ms. Allocated memory was 109.1 MB in the beginning and 209.7 MB in the end (delta: 100.7 MB). Free memory was 75.9 MB in the beginning and 122.5 MB in the end (delta: -46.5 MB). Peak memory consumption was 53.3 MB. Max. memory is 16.1 GB. * Witness Printer took 74.16 ms. Allocated memory is still 209.7 MB. Free memory was 122.5 MB in the beginning and 119.3 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1489 VarBasedMoverChecksPositive, 67 VarBasedMoverChecksNegative, 13 SemBasedMoverChecksPositive, 54 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.5s, 106 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.5s, 99 PlacesBefore, 38 PlacesAfterwards, 89 TransitionsBefore, 26 TransitionsAfterwards, 2042 CoEnabledTransitionPairs, 7 FixpointIterations, 17 TrivialSequentialCompositions, 49 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 2 ChoiceCompositions, 82 TotalNumberOfCompositions, 4334 MoverChecksTotal - PositiveResult [Line: 17]: 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 5 procedures, 87 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.2s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.6s, HoareTripleCheckerStatistics: 181 SDtfs, 212 SDslu, 270 SDs, 0 SdLazy, 172 SolverSat, 48 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=706occurred 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: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 36 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 129 NumberOfCodeBlocks, 129 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 120 ConstructedInterpolants, 0 QuantifiedInterpolants, 5253 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...