./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe032_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/safe032_tso.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 0e5de3ef47c4c349f533a483c0af709037486bd9 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 03:08:05,821 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 03:08:05,824 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 03:08:05,864 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 03:08:05,864 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 03:08:05,873 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 03:08:05,875 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 03:08:05,879 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 03:08:05,881 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 03:08:05,884 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 03:08:05,885 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 03:08:05,886 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 03:08:05,887 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 03:08:05,890 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 03:08:05,891 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 03:08:05,893 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 03:08:05,894 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 03:08:05,895 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 03:08:05,897 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 03:08:05,904 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 03:08:05,906 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 03:08:05,908 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 03:08:05,909 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 03:08:05,910 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 03:08:05,915 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 03:08:05,915 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 03:08:05,915 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 03:08:05,919 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 03:08:05,919 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 03:08:05,920 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 03:08:05,921 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 03:08:05,921 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 03:08:05,922 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 03:08:05,925 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 03:08:05,926 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 03:08:05,926 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 03:08:05,926 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 03:08:05,926 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 03:08:05,927 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 03:08:05,927 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 03:08:05,928 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 03:08:05,929 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 03:08:05,958 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 03:08:05,958 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 03:08:05,959 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 03:08:05,959 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 03:08:05,959 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 03:08:05,960 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 03:08:05,960 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 03:08:05,960 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 03:08:05,960 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 03:08:05,960 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 03:08:05,961 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 03:08:05,961 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 03:08:05,961 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 03:08:05,961 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 03:08:05,961 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 03:08:05,961 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 03:08:05,962 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 03:08:05,962 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 03:08:05,962 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 03:08:05,962 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 03:08:05,962 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 03:08:05,963 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 03:08:05,963 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 03:08:05,963 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 03:08:05,963 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 03:08:05,963 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 03:08:05,963 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 03:08:05,964 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 03:08:05,964 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 03:08:05,964 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 0e5de3ef47c4c349f533a483c0af709037486bd9 [2020-10-20 03:08:06,167 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 03:08:06,186 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 03:08:06,192 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 03:08:06,194 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 03:08:06,194 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 03:08:06,195 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe032_tso.oepc.i [2020-10-20 03:08:06,272 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4d4e643c/eb59c048fa3245ecaa9fd5e3327f36bc/FLAGee56e7efd [2020-10-20 03:08:06,999 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 03:08:07,000 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe032_tso.oepc.i [2020-10-20 03:08:07,017 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4d4e643c/eb59c048fa3245ecaa9fd5e3327f36bc/FLAGee56e7efd [2020-10-20 03:08:07,105 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4d4e643c/eb59c048fa3245ecaa9fd5e3327f36bc [2020-10-20 03:08:07,109 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 03:08:07,115 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 03:08:07,116 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 03:08:07,117 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 03:08:07,120 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 03:08:07,121 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 03:08:07" (1/1) ... [2020-10-20 03:08:07,124 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3079f3bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:08:07, skipping insertion in model container [2020-10-20 03:08:07,124 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 03:08:07" (1/1) ... [2020-10-20 03:08:07,132 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 03:08:07,172 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 03:08:07,589 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 03:08:07,600 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 03:08:07,658 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 03:08:07,759 INFO L208 MainTranslator]: Completed translation [2020-10-20 03:08:07,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:08:07 WrapperNode [2020-10-20 03:08:07,762 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 03:08:07,763 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 03:08:07,763 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 03:08:07,764 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 03:08:07,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:08:07" (1/1) ... [2020-10-20 03:08:07,790 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:08:07" (1/1) ... [2020-10-20 03:08:07,811 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 03:08:07,812 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 03:08:07,812 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 03:08:07,812 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 03:08:07,820 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:08:07" (1/1) ... [2020-10-20 03:08:07,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:08:07" (1/1) ... [2020-10-20 03:08:07,826 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:08:07" (1/1) ... [2020-10-20 03:08:07,826 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:08:07" (1/1) ... [2020-10-20 03:08:07,833 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:08:07" (1/1) ... [2020-10-20 03:08:07,835 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:08:07" (1/1) ... [2020-10-20 03:08:07,837 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:08:07" (1/1) ... [2020-10-20 03:08:07,840 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 03:08:07,841 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 03:08:07,841 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 03:08:07,841 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 03:08:07,843 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:08:07" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 03:08:07,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 03:08:07,918 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-20 03:08:07,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 03:08:07,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 03:08:07,919 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-20 03:08:07,919 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-20 03:08:07,919 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-20 03:08:07,919 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-20 03:08:07,919 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-20 03:08:07,920 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-20 03:08:07,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 03:08:07,920 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-20 03:08:07,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 03:08:07,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 03:08:07,922 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-20 03:08:08,298 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 03:08:08,299 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-20 03:08:08,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 03:08:08 BoogieIcfgContainer [2020-10-20 03:08:08,302 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 03:08:08,303 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 03:08:08,303 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 03:08:08,314 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 03:08:08,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 03:08:07" (1/3) ... [2020-10-20 03:08:08,316 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40fcb97f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 03:08:08, skipping insertion in model container [2020-10-20 03:08:08,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:08:07" (2/3) ... [2020-10-20 03:08:08,316 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40fcb97f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 03:08:08, skipping insertion in model container [2020-10-20 03:08:08,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 03:08:08" (3/3) ... [2020-10-20 03:08:08,319 INFO L111 eAbstractionObserver]: Analyzing ICFG safe032_tso.oepc.i [2020-10-20 03:08:08,328 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-20 03:08:08,328 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 03:08:08,334 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 03:08:08,335 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-20 03:08:08,365 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:08,365 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:08,365 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:08,365 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:08,366 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:08,366 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:08,367 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:08,367 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:08,367 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:08,367 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:08,368 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:08,368 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:08,368 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:08,368 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:08,369 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:08,369 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:08,369 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:08,369 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:08,373 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:08,374 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:08,374 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:08,374 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:08,382 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:08,382 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:08,383 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:08,383 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:08,387 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:08,387 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:08,387 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:08,387 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:08,403 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-20 03:08:08,418 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-20 03:08:08,440 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 03:08:08,441 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 03:08:08,441 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 03:08:08,441 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 03:08:08,442 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 03:08:08,443 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 03:08:08,443 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 03:08:08,444 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 03:08:08,456 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-20 03:08:08,459 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 78 transitions, 171 flow [2020-10-20 03:08:08,463 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 78 transitions, 171 flow [2020-10-20 03:08:08,465 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 85 places, 78 transitions, 171 flow [2020-10-20 03:08:08,516 INFO L129 PetriNetUnfolder]: 3/75 cut-off events. [2020-10-20 03:08:08,517 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-20 03:08:08,523 INFO L80 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 75 events. 3/75 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-10-20 03:08:08,526 INFO L117 LiptonReduction]: Number of co-enabled transitions 1440 [2020-10-20 03:08:10,393 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2020-10-20 03:08:10,594 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 47 [2020-10-20 03:08:10,959 INFO L132 LiptonReduction]: Checked pairs total: 2833 [2020-10-20 03:08:10,959 INFO L134 LiptonReduction]: Total number of compositions: 71 [2020-10-20 03:08:10,966 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2020-10-20 03:08:11,000 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-20 03:08:11,002 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-20 03:08:11,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-20 03:08:11,010 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:08:11,011 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:08:11,012 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:08:11,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:08:11,018 INFO L82 PathProgramCache]: Analyzing trace with hash -618309236, now seen corresponding path program 1 times [2020-10-20 03:08:11,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:08:11,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679117453] [2020-10-20 03:08:11,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:08:11,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:08:11,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:08:11,267 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679117453] [2020-10-20 03:08:11,269 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:08:11,269 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-20 03:08:11,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385097112] [2020-10-20 03:08:11,275 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 03:08:11,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:08:11,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 03:08:11,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 03:08:11,291 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-20 03:08:11,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:08:11,351 INFO L93 Difference]: Finished difference Result 294 states and 849 transitions. [2020-10-20 03:08:11,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 03:08:11,353 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-20 03:08:11,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:08:11,371 INFO L225 Difference]: With dead ends: 294 [2020-10-20 03:08:11,371 INFO L226 Difference]: Without dead ends: 230 [2020-10-20 03:08:11,373 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 [2020-10-20 03:08:11,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2020-10-20 03:08:11,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2020-10-20 03:08:11,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-10-20 03:08:11,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 641 transitions. [2020-10-20 03:08:11,462 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 641 transitions. Word has length 8 [2020-10-20 03:08:11,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:08:11,464 INFO L481 AbstractCegarLoop]: Abstraction has 230 states and 641 transitions. [2020-10-20 03:08:11,464 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 03:08:11,464 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 641 transitions. [2020-10-20 03:08:11,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-20 03:08:11,468 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:08:11,468 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:08:11,468 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 03:08:11,469 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:08:11,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:08:11,469 INFO L82 PathProgramCache]: Analyzing trace with hash -2017712009, now seen corresponding path program 1 times [2020-10-20 03:08:11,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:08:11,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927376471] [2020-10-20 03:08:11,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:08:11,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:08:11,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:08:11,584 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927376471] [2020-10-20 03:08:11,585 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:08:11,585 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 03:08:11,585 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204441054] [2020-10-20 03:08:11,587 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 03:08:11,588 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:08:11,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 03:08:11,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 03:08:11,588 INFO L87 Difference]: Start difference. First operand 230 states and 641 transitions. Second operand 3 states. [2020-10-20 03:08:11,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:08:11,614 INFO L93 Difference]: Finished difference Result 326 states and 861 transitions. [2020-10-20 03:08:11,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 03:08:11,614 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-20 03:08:11,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:08:11,618 INFO L225 Difference]: With dead ends: 326 [2020-10-20 03:08:11,618 INFO L226 Difference]: Without dead ends: 254 [2020-10-20 03:08:11,619 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 [2020-10-20 03:08:11,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-10-20 03:08:11,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 218. [2020-10-20 03:08:11,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-10-20 03:08:11,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 576 transitions. [2020-10-20 03:08:11,642 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 576 transitions. Word has length 9 [2020-10-20 03:08:11,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:08:11,642 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 576 transitions. [2020-10-20 03:08:11,642 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 03:08:11,642 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 576 transitions. [2020-10-20 03:08:11,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-20 03:08:11,644 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:08:11,644 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:08:11,644 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 03:08:11,644 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:08:11,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:08:11,645 INFO L82 PathProgramCache]: Analyzing trace with hash -1987739380, now seen corresponding path program 1 times [2020-10-20 03:08:11,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:08:11,645 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621987475] [2020-10-20 03:08:11,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:08:11,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:08:11,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:08:11,692 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621987475] [2020-10-20 03:08:11,692 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:08:11,692 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-20 03:08:11,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507609884] [2020-10-20 03:08:11,693 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 03:08:11,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:08:11,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 03:08:11,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 03:08:11,694 INFO L87 Difference]: Start difference. First operand 218 states and 576 transitions. Second operand 3 states. [2020-10-20 03:08:11,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:08:11,703 INFO L93 Difference]: Finished difference Result 194 states and 494 transitions. [2020-10-20 03:08:11,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 03:08:11,703 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-20 03:08:11,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:08:11,706 INFO L225 Difference]: With dead ends: 194 [2020-10-20 03:08:11,706 INFO L226 Difference]: Without dead ends: 170 [2020-10-20 03:08:11,706 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 [2020-10-20 03:08:11,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-10-20 03:08:11,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2020-10-20 03:08:11,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-10-20 03:08:11,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 440 transitions. [2020-10-20 03:08:11,720 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 440 transitions. Word has length 9 [2020-10-20 03:08:11,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:08:11,720 INFO L481 AbstractCegarLoop]: Abstraction has 170 states and 440 transitions. [2020-10-20 03:08:11,721 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 03:08:11,721 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 440 transitions. [2020-10-20 03:08:11,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-20 03:08:11,722 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:08:11,722 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:08:11,723 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 03:08:11,723 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:08:11,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:08:11,723 INFO L82 PathProgramCache]: Analyzing trace with hash -1991682187, now seen corresponding path program 1 times [2020-10-20 03:08:11,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:08:11,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048227711] [2020-10-20 03:08:11,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:08:11,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:08:11,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:08:11,783 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048227711] [2020-10-20 03:08:11,784 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:08:11,784 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 03:08:11,784 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767649611] [2020-10-20 03:08:11,784 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 03:08:11,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:08:11,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 03:08:11,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 03:08:11,786 INFO L87 Difference]: Start difference. First operand 170 states and 440 transitions. Second operand 4 states. [2020-10-20 03:08:11,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:08:11,849 INFO L93 Difference]: Finished difference Result 218 states and 556 transitions. [2020-10-20 03:08:11,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 03:08:11,851 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-20 03:08:11,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:08:11,853 INFO L225 Difference]: With dead ends: 218 [2020-10-20 03:08:11,853 INFO L226 Difference]: Without dead ends: 146 [2020-10-20 03:08:11,854 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 03:08:11,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-10-20 03:08:11,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-10-20 03:08:11,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-10-20 03:08:11,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 362 transitions. [2020-10-20 03:08:11,865 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 362 transitions. Word has length 11 [2020-10-20 03:08:11,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:08:11,865 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 362 transitions. [2020-10-20 03:08:11,865 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 03:08:11,865 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 362 transitions. [2020-10-20 03:08:11,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-20 03:08:11,867 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:08:11,867 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:08:11,867 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 03:08:11,867 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:08:11,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:08:11,868 INFO L82 PathProgramCache]: Analyzing trace with hash -1991064667, now seen corresponding path program 2 times [2020-10-20 03:08:11,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:08:11,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824698852] [2020-10-20 03:08:11,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:08:11,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:08:11,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:08:11,905 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824698852] [2020-10-20 03:08:11,906 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:08:11,906 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-20 03:08:11,906 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097530720] [2020-10-20 03:08:11,907 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 03:08:11,907 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:08:11,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 03:08:11,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 03:08:11,907 INFO L87 Difference]: Start difference. First operand 146 states and 362 transitions. Second operand 3 states. [2020-10-20 03:08:11,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:08:11,915 INFO L93 Difference]: Finished difference Result 144 states and 355 transitions. [2020-10-20 03:08:11,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 03:08:11,915 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-20 03:08:11,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:08:11,917 INFO L225 Difference]: With dead ends: 144 [2020-10-20 03:08:11,917 INFO L226 Difference]: Without dead ends: 144 [2020-10-20 03:08:11,917 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 [2020-10-20 03:08:11,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-10-20 03:08:11,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2020-10-20 03:08:11,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-10-20 03:08:11,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 355 transitions. [2020-10-20 03:08:11,927 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 355 transitions. Word has length 11 [2020-10-20 03:08:11,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:08:11,927 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 355 transitions. [2020-10-20 03:08:11,927 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 03:08:11,927 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 355 transitions. [2020-10-20 03:08:11,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-20 03:08:11,929 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:08:11,929 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:08:11,929 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 03:08:11,929 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:08:11,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:08:11,930 INFO L82 PathProgramCache]: Analyzing trace with hash 659418087, now seen corresponding path program 1 times [2020-10-20 03:08:11,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:08:11,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523566595] [2020-10-20 03:08:11,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:08:11,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:08:12,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:08:12,004 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523566595] [2020-10-20 03:08:12,004 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:08:12,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 03:08:12,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966980560] [2020-10-20 03:08:12,005 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 03:08:12,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:08:12,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 03:08:12,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 03:08:12,006 INFO L87 Difference]: Start difference. First operand 144 states and 355 transitions. Second operand 4 states. [2020-10-20 03:08:12,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:08:12,031 INFO L93 Difference]: Finished difference Result 164 states and 374 transitions. [2020-10-20 03:08:12,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 03:08:12,032 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-20 03:08:12,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:08:12,034 INFO L225 Difference]: With dead ends: 164 [2020-10-20 03:08:12,034 INFO L226 Difference]: Without dead ends: 124 [2020-10-20 03:08:12,034 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 [2020-10-20 03:08:12,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-10-20 03:08:12,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2020-10-20 03:08:12,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-10-20 03:08:12,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 281 transitions. [2020-10-20 03:08:12,042 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 281 transitions. Word has length 12 [2020-10-20 03:08:12,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:08:12,042 INFO L481 AbstractCegarLoop]: Abstraction has 124 states and 281 transitions. [2020-10-20 03:08:12,043 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 03:08:12,043 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 281 transitions. [2020-10-20 03:08:12,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-20 03:08:12,044 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:08:12,045 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:08:12,045 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-20 03:08:12,045 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:08:12,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:08:12,046 INFO L82 PathProgramCache]: Analyzing trace with hash -1069248817, now seen corresponding path program 1 times [2020-10-20 03:08:12,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:08:12,046 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785693144] [2020-10-20 03:08:12,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:08:12,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:08:12,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:08:12,108 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785693144] [2020-10-20 03:08:12,108 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:08:12,108 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 03:08:12,109 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451950114] [2020-10-20 03:08:12,109 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 03:08:12,110 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:08:12,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 03:08:12,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-20 03:08:12,110 INFO L87 Difference]: Start difference. First operand 124 states and 281 transitions. Second operand 5 states. [2020-10-20 03:08:12,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:08:12,158 INFO L93 Difference]: Finished difference Result 122 states and 258 transitions. [2020-10-20 03:08:12,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 03:08:12,158 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-20 03:08:12,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:08:12,159 INFO L225 Difference]: With dead ends: 122 [2020-10-20 03:08:12,160 INFO L226 Difference]: Without dead ends: 97 [2020-10-20 03:08:12,160 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-20 03:08:12,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-10-20 03:08:12,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2020-10-20 03:08:12,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-10-20 03:08:12,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 202 transitions. [2020-10-20 03:08:12,165 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 202 transitions. Word has length 13 [2020-10-20 03:08:12,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:08:12,166 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 202 transitions. [2020-10-20 03:08:12,166 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 03:08:12,166 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 202 transitions. [2020-10-20 03:08:12,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-20 03:08:12,167 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:08:12,176 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:08:12,176 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-20 03:08:12,176 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:08:12,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:08:12,177 INFO L82 PathProgramCache]: Analyzing trace with hash 1390045438, now seen corresponding path program 1 times [2020-10-20 03:08:12,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:08:12,177 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559467718] [2020-10-20 03:08:12,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:08:12,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:08:12,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:08:12,204 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559467718] [2020-10-20 03:08:12,205 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:08:12,205 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 03:08:12,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102943509] [2020-10-20 03:08:12,205 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 03:08:12,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:08:12,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 03:08:12,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 03:08:12,206 INFO L87 Difference]: Start difference. First operand 97 states and 202 transitions. Second operand 3 states. [2020-10-20 03:08:12,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:08:12,215 INFO L93 Difference]: Finished difference Result 115 states and 230 transitions. [2020-10-20 03:08:12,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 03:08:12,215 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-10-20 03:08:12,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:08:12,217 INFO L225 Difference]: With dead ends: 115 [2020-10-20 03:08:12,217 INFO L226 Difference]: Without dead ends: 98 [2020-10-20 03:08:12,217 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 [2020-10-20 03:08:12,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-10-20 03:08:12,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 96. [2020-10-20 03:08:12,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-10-20 03:08:12,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 193 transitions. [2020-10-20 03:08:12,221 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 193 transitions. Word has length 14 [2020-10-20 03:08:12,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:08:12,222 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 193 transitions. [2020-10-20 03:08:12,222 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 03:08:12,222 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 193 transitions. [2020-10-20 03:08:12,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-20 03:08:12,223 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:08:12,223 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:08:12,223 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-20 03:08:12,223 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:08:12,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:08:12,224 INFO L82 PathProgramCache]: Analyzing trace with hash 836357957, now seen corresponding path program 1 times [2020-10-20 03:08:12,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:08:12,224 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579554369] [2020-10-20 03:08:12,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:08:12,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:08:12,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:08:12,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579554369] [2020-10-20 03:08:12,274 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:08:12,274 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 03:08:12,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635621599] [2020-10-20 03:08:12,274 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 03:08:12,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:08:12,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 03:08:12,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-20 03:08:12,275 INFO L87 Difference]: Start difference. First operand 96 states and 193 transitions. Second operand 6 states. [2020-10-20 03:08:12,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:08:12,335 INFO L93 Difference]: Finished difference Result 92 states and 183 transitions. [2020-10-20 03:08:12,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 03:08:12,336 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-20 03:08:12,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:08:12,337 INFO L225 Difference]: With dead ends: 92 [2020-10-20 03:08:12,337 INFO L226 Difference]: Without dead ends: 36 [2020-10-20 03:08:12,337 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-10-20 03:08:12,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-20 03:08:12,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-10-20 03:08:12,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-20 03:08:12,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 56 transitions. [2020-10-20 03:08:12,340 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 56 transitions. Word has length 15 [2020-10-20 03:08:12,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:08:12,340 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 56 transitions. [2020-10-20 03:08:12,340 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 03:08:12,340 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 56 transitions. [2020-10-20 03:08:12,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 03:08:12,341 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:08:12,341 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:08:12,341 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-20 03:08:12,341 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:08:12,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:08:12,342 INFO L82 PathProgramCache]: Analyzing trace with hash -1235317196, now seen corresponding path program 1 times [2020-10-20 03:08:12,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:08:12,342 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832240344] [2020-10-20 03:08:12,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:08:12,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:08:12,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:08:12,379 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832240344] [2020-10-20 03:08:12,379 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:08:12,379 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 03:08:12,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809058701] [2020-10-20 03:08:12,380 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 03:08:12,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:08:12,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 03:08:12,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 03:08:12,380 INFO L87 Difference]: Start difference. First operand 36 states and 56 transitions. Second operand 4 states. [2020-10-20 03:08:12,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:08:12,396 INFO L93 Difference]: Finished difference Result 35 states and 55 transitions. [2020-10-20 03:08:12,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 03:08:12,396 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-20 03:08:12,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:08:12,396 INFO L225 Difference]: With dead ends: 35 [2020-10-20 03:08:12,397 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 03:08:12,397 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 03:08:12,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 03:08:12,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 03:08:12,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 03:08:12,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 03:08:12,398 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-20 03:08:12,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:08:12,398 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 03:08:12,398 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 03:08:12,398 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 03:08:12,399 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 03:08:12,399 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-20 03:08:12,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 03:08:12 BasicIcfg [2020-10-20 03:08:12,403 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 03:08:12,403 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 03:08:12,403 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 03:08:12,404 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 03:08:12,404 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 03:08:08" (3/4) ... [2020-10-20 03:08:12,409 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 03:08:12,418 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-10-20 03:08:12,418 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-10-20 03:08:12,418 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-10-20 03:08:12,424 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-10-20 03:08:12,425 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-20 03:08:12,425 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 03:08:12,425 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 03:08:12,480 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 03:08:12,481 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 03:08:12,483 INFO L168 Benchmark]: Toolchain (without parser) took 5372.30 ms. Allocated memory was 42.5 MB in the beginning and 71.3 MB in the end (delta: 28.8 MB). Free memory was 21.8 MB in the beginning and 11.7 MB in the end (delta: 10.1 MB). Peak memory consumption was 38.9 MB. Max. memory is 14.3 GB. [2020-10-20 03:08:12,483 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 32.0 MB. Free memory was 11.1 MB in the beginning and 11.1 MB in the end (delta: 47.5 kB). Peak memory consumption was 47.5 kB. Max. memory is 14.3 GB. [2020-10-20 03:08:12,484 INFO L168 Benchmark]: CACSL2BoogieTranslator took 646.28 ms. Allocated memory was 42.5 MB in the beginning and 45.1 MB in the end (delta: 2.6 MB). Free memory was 20.9 MB in the beginning and 19.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 11.2 MB. Max. memory is 14.3 GB. [2020-10-20 03:08:12,485 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.39 ms. Allocated memory is still 45.1 MB. Free memory was 19.0 MB in the beginning and 17.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. [2020-10-20 03:08:12,485 INFO L168 Benchmark]: Boogie Preprocessor took 28.91 ms. Allocated memory is still 45.1 MB. Free memory was 17.0 MB in the beginning and 15.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. [2020-10-20 03:08:12,486 INFO L168 Benchmark]: RCFGBuilder took 461.02 ms. Allocated memory is still 45.1 MB. Free memory was 15.3 MB in the beginning and 10.5 MB in the end (delta: 4.7 MB). Peak memory consumption was 5.1 MB. Max. memory is 14.3 GB. [2020-10-20 03:08:12,487 INFO L168 Benchmark]: TraceAbstraction took 4099.92 ms. Allocated memory was 45.1 MB in the beginning and 71.3 MB in the end (delta: 26.2 MB). Free memory was 10.2 MB in the beginning and 15.3 MB in the end (delta: -5.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 14.3 GB. [2020-10-20 03:08:12,487 INFO L168 Benchmark]: Witness Printer took 77.34 ms. Allocated memory is still 71.3 MB. Free memory was 15.3 MB in the beginning and 11.7 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 14.3 GB. [2020-10-20 03:08:12,491 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 32.0 MB. Free memory was 11.1 MB in the beginning and 11.1 MB in the end (delta: 47.5 kB). Peak memory consumption was 47.5 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 646.28 ms. Allocated memory was 42.5 MB in the beginning and 45.1 MB in the end (delta: 2.6 MB). Free memory was 20.9 MB in the beginning and 19.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 11.2 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 48.39 ms. Allocated memory is still 45.1 MB. Free memory was 19.0 MB in the beginning and 17.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 28.91 ms. Allocated memory is still 45.1 MB. Free memory was 17.0 MB in the beginning and 15.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. * RCFGBuilder took 461.02 ms. Allocated memory is still 45.1 MB. Free memory was 15.3 MB in the beginning and 10.5 MB in the end (delta: 4.7 MB). Peak memory consumption was 5.1 MB. Max. memory is 14.3 GB. * TraceAbstraction took 4099.92 ms. Allocated memory was 45.1 MB in the beginning and 71.3 MB in the end (delta: 26.2 MB). Free memory was 10.2 MB in the beginning and 15.3 MB in the end (delta: -5.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 14.3 GB. * Witness Printer took 77.34 ms. Allocated memory is still 71.3 MB. Free memory was 15.3 MB in the beginning and 11.7 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 978 VarBasedMoverChecksPositive, 63 VarBasedMoverChecksNegative, 18 SemBasedMoverChecksPositive, 45 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 74 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.4s, 85 PlacesBefore, 31 PlacesAfterwards, 78 TransitionsBefore, 21 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 3 ChoiceCompositions, 71 TotalNumberOfCompositions, 2833 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 4 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.9s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.5s, HoareTripleCheckerStatistics: 178 SDtfs, 169 SDslu, 163 SDs, 0 SdLazy, 84 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred 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: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 38 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 119 NumberOfCodeBlocks, 119 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 109 ConstructedInterpolants, 0 QuantifiedInterpolants, 3069 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...