./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-atomic/qrcu-1.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-atomic/qrcu-1.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 92de787da58164b8efa82fae19f262746d58018b ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 02:45:18,623 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 02:45:18,625 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 02:45:18,649 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 02:45:18,649 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 02:45:18,650 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 02:45:18,651 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 02:45:18,653 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 02:45:18,655 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 02:45:18,656 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 02:45:18,657 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 02:45:18,658 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 02:45:18,658 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 02:45:18,659 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 02:45:18,660 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 02:45:18,661 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 02:45:18,662 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 02:45:18,663 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 02:45:18,666 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 02:45:18,669 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 02:45:18,675 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 02:45:18,678 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 02:45:18,680 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 02:45:18,682 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 02:45:18,686 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 02:45:18,688 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 02:45:18,688 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 02:45:18,689 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 02:45:18,691 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 02:45:18,692 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 02:45:18,692 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 02:45:18,693 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 02:45:18,693 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 02:45:18,694 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 02:45:18,696 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 02:45:18,697 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 02:45:18,698 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 02:45:18,698 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 02:45:18,698 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 02:45:18,699 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 02:45:18,701 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 02:45:18,701 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 02:45:18,750 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 02:45:18,752 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 02:45:18,754 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 02:45:18,754 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 02:45:18,755 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 02:45:18,755 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 02:45:18,755 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 02:45:18,756 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 02:45:18,756 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 02:45:18,756 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 02:45:18,757 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 02:45:18,757 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 02:45:18,758 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 02:45:18,758 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 02:45:18,758 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 02:45:18,759 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 02:45:18,759 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 02:45:18,759 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 02:45:18,759 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 02:45:18,760 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 02:45:18,760 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 02:45:18,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 02:45:18,760 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 02:45:18,761 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 02:45:18,761 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 02:45:18,761 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 02:45:18,761 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 02:45:18,762 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 02:45:18,762 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 02:45:18,762 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 -> 92de787da58164b8efa82fae19f262746d58018b [2020-10-20 02:45:18,988 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 02:45:19,006 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 02:45:19,011 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 02:45:19,012 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 02:45:19,013 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 02:45:19,014 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-atomic/qrcu-1.i [2020-10-20 02:45:19,092 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49f232e2f/a12cb44c67be489d87cdaef7520821f4/FLAG415678938 [2020-10-20 02:45:19,706 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 02:45:19,707 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/qrcu-1.i [2020-10-20 02:45:19,725 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49f232e2f/a12cb44c67be489d87cdaef7520821f4/FLAG415678938 [2020-10-20 02:45:19,910 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49f232e2f/a12cb44c67be489d87cdaef7520821f4 [2020-10-20 02:45:19,914 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 02:45:19,922 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 02:45:19,923 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 02:45:19,923 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 02:45:19,927 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 02:45:19,928 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 02:45:19" (1/1) ... [2020-10-20 02:45:19,930 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@692ff561 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:45:19, skipping insertion in model container [2020-10-20 02:45:19,931 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 02:45:19" (1/1) ... [2020-10-20 02:45:19,938 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 02:45:20,002 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 02:45:20,436 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 02:45:20,452 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 02:45:20,527 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 02:45:20,621 INFO L208 MainTranslator]: Completed translation [2020-10-20 02:45:20,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:45:20 WrapperNode [2020-10-20 02:45:20,622 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 02:45:20,623 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 02:45:20,623 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 02:45:20,623 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 02:45:20,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:45:20" (1/1) ... [2020-10-20 02:45:20,648 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:45:20" (1/1) ... [2020-10-20 02:45:20,686 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 02:45:20,687 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 02:45:20,687 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 02:45:20,687 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 02:45:20,696 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:45:20" (1/1) ... [2020-10-20 02:45:20,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:45:20" (1/1) ... [2020-10-20 02:45:20,701 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:45:20" (1/1) ... [2020-10-20 02:45:20,702 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:45:20" (1/1) ... [2020-10-20 02:45:20,711 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:45:20" (1/1) ... [2020-10-20 02:45:20,717 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:45:20" (1/1) ... [2020-10-20 02:45:20,721 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:45:20" (1/1) ... [2020-10-20 02:45:20,726 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 02:45:20,727 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 02:45:20,727 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 02:45:20,727 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 02:45:20,728 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:45:20" (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 02:45:20,810 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_reader1 [2020-10-20 02:45:20,811 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_reader1 [2020-10-20 02:45:20,811 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_reader2 [2020-10-20 02:45:20,811 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_reader2 [2020-10-20 02:45:20,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 02:45:20,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 02:45:20,812 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_updater [2020-10-20 02:45:20,812 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_updater [2020-10-20 02:45:20,812 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-20 02:45:20,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 02:45:20,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 02:45:20,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 02:45:20,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 02:45:20,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 02:45:20,815 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 02:45:21,999 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 02:45:21,999 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-20 02:45:22,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 02:45:22 BoogieIcfgContainer [2020-10-20 02:45:22,002 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 02:45:22,003 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 02:45:22,004 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 02:45:22,007 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 02:45:22,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 02:45:19" (1/3) ... [2020-10-20 02:45:22,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4359d569 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 02:45:22, skipping insertion in model container [2020-10-20 02:45:22,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:45:20" (2/3) ... [2020-10-20 02:45:22,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4359d569 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 02:45:22, skipping insertion in model container [2020-10-20 02:45:22,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 02:45:22" (3/3) ... [2020-10-20 02:45:22,011 INFO L111 eAbstractionObserver]: Analyzing ICFG qrcu-1.i [2020-10-20 02:45:22,022 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-20 02:45:22,023 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 02:45:22,029 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-20 02:45:22,030 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-20 02:45:22,064 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,065 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,065 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,066 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,066 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,066 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,067 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,067 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,081 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,081 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,082 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,082 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,083 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,083 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,083 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,083 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,084 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,084 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,084 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,084 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,085 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,085 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,085 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,085 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,086 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,086 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,086 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,087 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,087 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,087 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,087 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,087 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,088 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,088 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,088 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,089 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,089 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,089 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,090 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,090 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,090 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,090 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,091 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,091 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,091 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,091 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,092 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,092 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,092 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,093 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,093 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,093 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,093 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,094 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,094 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,094 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,094 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,095 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,095 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,095 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,095 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,096 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,096 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,096 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,096 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,097 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,097 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,097 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,097 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,098 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,099 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,100 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,100 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,100 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,100 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,101 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,101 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,101 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,101 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,102 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,102 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,102 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,103 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,103 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,103 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_~readerstart2.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,103 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_#in~readerstart1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,103 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_#in~readerstart1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,104 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_~readerstart1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,104 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_#in~readerstart2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,104 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_~readerstart2.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,104 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_#in~readerstart2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,105 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_~readerstart1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,105 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,105 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,106 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,106 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,106 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,106 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,107 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,107 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,107 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,107 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,108 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,108 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,108 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,108 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,109 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,109 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,109 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,109 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,110 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,110 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,110 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,110 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,111 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,111 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,111 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,112 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,112 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,112 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,112 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,112 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,113 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_~readerstart1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,113 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,113 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_#in~readerstart1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,113 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,114 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,114 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,114 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,114 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,115 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,115 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,115 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,115 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,116 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_~readerstart1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,116 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,116 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_#in~readerstart1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,117 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,117 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,117 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,117 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,118 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,118 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,118 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,118 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,119 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,119 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,119 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,119 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,119 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,120 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,120 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,120 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,120 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,121 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_~readerstart2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,121 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,121 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,121 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_#in~readerstart2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,121 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,122 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,122 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,122 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,122 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,123 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,123 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_~readerstart2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,123 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,123 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,124 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,124 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,124 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_#in~readerstart2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,124 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,124 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,125 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,125 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,125 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,126 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,126 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,126 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,126 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,127 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,127 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,127 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,127 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,128 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,128 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,128 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,128 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,129 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,132 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,133 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,133 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,133 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,133 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,134 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,134 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,134 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,134 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,135 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,135 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,135 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,135 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,136 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,136 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,136 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,136 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,137 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,137 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,143 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,143 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,143 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,143 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,144 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,144 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,144 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,144 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,144 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,144 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,145 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,145 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,145 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,146 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,146 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,146 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,146 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,147 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,147 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,149 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,149 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_#in~readerstart2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,149 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,149 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_#in~readerstart2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,149 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_#in~readerstart1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,150 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,150 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,150 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,151 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,151 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,151 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_#in~readerstart1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,151 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,151 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,151 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,152 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,152 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,152 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_~readerstart1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,153 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,153 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,153 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,153 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_~readerstart1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,153 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,153 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_~readerstart2.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,153 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_~readerstart2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,154 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,154 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_~readerstart1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,154 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,154 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,154 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,154 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,155 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_#in~readerstart1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,155 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,156 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_~readerstart2.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,156 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,156 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_#in~readerstart2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,156 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,157 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:22,165 INFO L149 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2020-10-20 02:45:22,179 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-10-20 02:45:22,197 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 02:45:22,197 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 02:45:22,197 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 02:45:22,197 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 02:45:22,197 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 02:45:22,197 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 02:45:22,197 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 02:45:22,198 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 02:45:22,213 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-20 02:45:22,216 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 161 places, 175 transitions, 392 flow [2020-10-20 02:45:22,219 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 161 places, 175 transitions, 392 flow [2020-10-20 02:45:22,221 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 161 places, 175 transitions, 392 flow [2020-10-20 02:45:22,325 INFO L129 PetriNetUnfolder]: 23/183 cut-off events. [2020-10-20 02:45:22,326 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2020-10-20 02:45:22,334 INFO L80 FinitePrefix]: Finished finitePrefix Result has 205 conditions, 183 events. 23/183 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 448 event pairs, 0 based on Foata normal form. 0/162 useless extension candidates. Maximal degree in co-relation 141. Up to 6 conditions per place. [2020-10-20 02:45:22,344 INFO L117 LiptonReduction]: Number of co-enabled transitions 10120 [2020-10-20 02:45:22,628 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2020-10-20 02:45:22,629 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 02:45:22,642 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2020-10-20 02:45:22,643 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 02:45:26,227 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-10-20 02:45:26,333 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 15, 1] term [2020-10-20 02:45:26,333 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 02:45:26,346 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 15, 1] term [2020-10-20 02:45:26,346 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 02:45:26,950 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2020-10-20 02:45:27,575 WARN L193 SmtUtils]: Spent 522.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 119 [2020-10-20 02:45:27,806 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-20 02:45:27,835 INFO L132 LiptonReduction]: Checked pairs total: 25813 [2020-10-20 02:45:27,835 INFO L134 LiptonReduction]: Total number of compositions: 129 [2020-10-20 02:45:27,841 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 64 places, 73 transitions, 188 flow [2020-10-20 02:45:28,102 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 4024 states. [2020-10-20 02:45:28,105 INFO L276 IsEmpty]: Start isEmpty. Operand 4024 states. [2020-10-20 02:45:28,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-20 02:45:28,124 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:45:28,125 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 02:45:28,125 INFO L429 AbstractCegarLoop]: === Iteration 1 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:45:28,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:45:28,133 INFO L82 PathProgramCache]: Analyzing trace with hash 1473389135, now seen corresponding path program 1 times [2020-10-20 02:45:28,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:45:28,145 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59514630] [2020-10-20 02:45:28,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:45:28,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:45:28,425 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 02:45:28,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59514630] [2020-10-20 02:45:28,428 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:45:28,428 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 02:45:28,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075238990] [2020-10-20 02:45:28,435 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 02:45:28,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:45:28,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 02:45:28,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 02:45:28,456 INFO L87 Difference]: Start difference. First operand 4024 states. Second operand 3 states. [2020-10-20 02:45:28,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:45:28,579 INFO L93 Difference]: Finished difference Result 5040 states and 18204 transitions. [2020-10-20 02:45:28,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 02:45:28,581 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-20 02:45:28,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:45:28,638 INFO L225 Difference]: With dead ends: 5040 [2020-10-20 02:45:28,639 INFO L226 Difference]: Without dead ends: 4288 [2020-10-20 02:45:28,640 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 02:45:28,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4288 states. [2020-10-20 02:45:29,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4288 to 3808. [2020-10-20 02:45:29,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3808 states. [2020-10-20 02:45:29,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3808 states to 3808 states and 14333 transitions. [2020-10-20 02:45:29,147 INFO L78 Accepts]: Start accepts. Automaton has 3808 states and 14333 transitions. Word has length 12 [2020-10-20 02:45:29,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:45:29,149 INFO L481 AbstractCegarLoop]: Abstraction has 3808 states and 14333 transitions. [2020-10-20 02:45:29,149 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 02:45:29,149 INFO L276 IsEmpty]: Start isEmpty. Operand 3808 states and 14333 transitions. [2020-10-20 02:45:29,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-20 02:45:29,154 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:45:29,155 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 02:45:29,155 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 02:45:29,155 INFO L429 AbstractCegarLoop]: === Iteration 2 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:45:29,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:45:29,156 INFO L82 PathProgramCache]: Analyzing trace with hash -1564352557, now seen corresponding path program 1 times [2020-10-20 02:45:29,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:45:29,157 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838663139] [2020-10-20 02:45:29,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:45:29,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:45:29,257 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 02:45:29,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838663139] [2020-10-20 02:45:29,258 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:45:29,258 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-20 02:45:29,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112505199] [2020-10-20 02:45:29,262 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 02:45:29,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:45:29,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 02:45:29,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 02:45:29,263 INFO L87 Difference]: Start difference. First operand 3808 states and 14333 transitions. Second operand 3 states. [2020-10-20 02:45:29,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:45:29,315 INFO L93 Difference]: Finished difference Result 3723 states and 14009 transitions. [2020-10-20 02:45:29,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 02:45:29,316 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-20 02:45:29,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:45:29,350 INFO L225 Difference]: With dead ends: 3723 [2020-10-20 02:45:29,351 INFO L226 Difference]: Without dead ends: 3723 [2020-10-20 02:45:29,352 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 02:45:29,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3723 states. [2020-10-20 02:45:29,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3723 to 3723. [2020-10-20 02:45:29,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3723 states. [2020-10-20 02:45:29,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3723 states to 3723 states and 14009 transitions. [2020-10-20 02:45:29,863 INFO L78 Accepts]: Start accepts. Automaton has 3723 states and 14009 transitions. Word has length 13 [2020-10-20 02:45:29,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:45:29,864 INFO L481 AbstractCegarLoop]: Abstraction has 3723 states and 14009 transitions. [2020-10-20 02:45:29,864 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 02:45:29,864 INFO L276 IsEmpty]: Start isEmpty. Operand 3723 states and 14009 transitions. [2020-10-20 02:45:29,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-20 02:45:29,867 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:45:29,867 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 02:45:29,867 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 02:45:29,867 INFO L429 AbstractCegarLoop]: === Iteration 3 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:45:29,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:45:29,868 INFO L82 PathProgramCache]: Analyzing trace with hash -1564352693, now seen corresponding path program 1 times [2020-10-20 02:45:29,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:45:29,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8471868] [2020-10-20 02:45:29,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:45:29,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:45:29,959 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 02:45:29,959 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8471868] [2020-10-20 02:45:29,960 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:45:29,960 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-20 02:45:29,960 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276830193] [2020-10-20 02:45:29,961 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 02:45:29,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:45:29,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 02:45:29,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 02:45:29,962 INFO L87 Difference]: Start difference. First operand 3723 states and 14009 transitions. Second operand 3 states. [2020-10-20 02:45:30,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:45:30,015 INFO L93 Difference]: Finished difference Result 3647 states and 13722 transitions. [2020-10-20 02:45:30,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 02:45:30,015 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-20 02:45:30,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:45:30,047 INFO L225 Difference]: With dead ends: 3647 [2020-10-20 02:45:30,047 INFO L226 Difference]: Without dead ends: 3647 [2020-10-20 02:45:30,048 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 02:45:30,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3647 states. [2020-10-20 02:45:30,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3647 to 3647. [2020-10-20 02:45:30,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3647 states. [2020-10-20 02:45:30,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3647 states to 3647 states and 13722 transitions. [2020-10-20 02:45:30,232 INFO L78 Accepts]: Start accepts. Automaton has 3647 states and 13722 transitions. Word has length 13 [2020-10-20 02:45:30,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:45:30,232 INFO L481 AbstractCegarLoop]: Abstraction has 3647 states and 13722 transitions. [2020-10-20 02:45:30,232 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 02:45:30,233 INFO L276 IsEmpty]: Start isEmpty. Operand 3647 states and 13722 transitions. [2020-10-20 02:45:30,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 02:45:30,238 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:45:30,238 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 02:45:30,239 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 02:45:30,239 INFO L429 AbstractCegarLoop]: === Iteration 4 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:45:30,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:45:30,239 INFO L82 PathProgramCache]: Analyzing trace with hash 814954117, now seen corresponding path program 1 times [2020-10-20 02:45:30,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:45:30,240 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311853518] [2020-10-20 02:45:30,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:45:30,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:45:30,319 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 02:45:30,320 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311853518] [2020-10-20 02:45:30,320 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:45:30,321 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 02:45:30,321 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440555443] [2020-10-20 02:45:30,321 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 02:45:30,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:45:30,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 02:45:30,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-20 02:45:30,322 INFO L87 Difference]: Start difference. First operand 3647 states and 13722 transitions. Second operand 6 states. [2020-10-20 02:45:30,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:45:30,674 INFO L93 Difference]: Finished difference Result 4630 states and 16788 transitions. [2020-10-20 02:45:30,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-20 02:45:30,675 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-10-20 02:45:30,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:45:30,724 INFO L225 Difference]: With dead ends: 4630 [2020-10-20 02:45:30,724 INFO L226 Difference]: Without dead ends: 4630 [2020-10-20 02:45:30,725 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-20 02:45:30,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4630 states. [2020-10-20 02:45:30,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4630 to 4071. [2020-10-20 02:45:30,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4071 states. [2020-10-20 02:45:30,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4071 states to 4071 states and 15061 transitions. [2020-10-20 02:45:30,888 INFO L78 Accepts]: Start accepts. Automaton has 4071 states and 15061 transitions. Word has length 17 [2020-10-20 02:45:30,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:45:30,889 INFO L481 AbstractCegarLoop]: Abstraction has 4071 states and 15061 transitions. [2020-10-20 02:45:30,889 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 02:45:30,889 INFO L276 IsEmpty]: Start isEmpty. Operand 4071 states and 15061 transitions. [2020-10-20 02:45:30,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 02:45:30,898 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:45:30,898 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 02:45:30,898 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 02:45:30,899 INFO L429 AbstractCegarLoop]: === Iteration 5 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:45:30,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:45:30,899 INFO L82 PathProgramCache]: Analyzing trace with hash 1794975697, now seen corresponding path program 2 times [2020-10-20 02:45:30,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:45:30,900 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405420912] [2020-10-20 02:45:30,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:45:31,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:45:31,084 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 02:45:31,084 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405420912] [2020-10-20 02:45:31,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:45:31,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 02:45:31,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563354127] [2020-10-20 02:45:31,085 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 02:45:31,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:45:31,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 02:45:31,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-20 02:45:31,086 INFO L87 Difference]: Start difference. First operand 4071 states and 15061 transitions. Second operand 6 states. [2020-10-20 02:45:31,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:45:31,301 INFO L93 Difference]: Finished difference Result 4750 states and 17368 transitions. [2020-10-20 02:45:31,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 02:45:31,302 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-10-20 02:45:31,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:45:31,323 INFO L225 Difference]: With dead ends: 4750 [2020-10-20 02:45:31,323 INFO L226 Difference]: Without dead ends: 4750 [2020-10-20 02:45:31,325 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-20 02:45:31,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4750 states. [2020-10-20 02:45:31,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4750 to 3951. [2020-10-20 02:45:31,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3951 states. [2020-10-20 02:45:31,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3951 states to 3951 states and 14617 transitions. [2020-10-20 02:45:31,506 INFO L78 Accepts]: Start accepts. Automaton has 3951 states and 14617 transitions. Word has length 17 [2020-10-20 02:45:31,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:45:31,507 INFO L481 AbstractCegarLoop]: Abstraction has 3951 states and 14617 transitions. [2020-10-20 02:45:31,507 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 02:45:31,507 INFO L276 IsEmpty]: Start isEmpty. Operand 3951 states and 14617 transitions. [2020-10-20 02:45:31,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 02:45:31,513 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:45:31,513 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 02:45:31,513 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 02:45:31,514 INFO L429 AbstractCegarLoop]: === Iteration 6 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:45:31,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:45:31,514 INFO L82 PathProgramCache]: Analyzing trace with hash 1643935327, now seen corresponding path program 3 times [2020-10-20 02:45:31,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:45:31,515 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229826270] [2020-10-20 02:45:31,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:45:31,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:45:31,584 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 02:45:31,584 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229826270] [2020-10-20 02:45:31,585 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:45:31,585 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 02:45:31,585 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15221584] [2020-10-20 02:45:31,585 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 02:45:31,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:45:31,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 02:45:31,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 02:45:31,586 INFO L87 Difference]: Start difference. First operand 3951 states and 14617 transitions. Second operand 5 states. [2020-10-20 02:45:31,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:45:31,753 INFO L93 Difference]: Finished difference Result 6358 states and 22975 transitions. [2020-10-20 02:45:31,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 02:45:31,754 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-20 02:45:31,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:45:31,877 INFO L225 Difference]: With dead ends: 6358 [2020-10-20 02:45:31,877 INFO L226 Difference]: Without dead ends: 6358 [2020-10-20 02:45:31,878 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-20 02:45:31,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6358 states. [2020-10-20 02:45:32,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6358 to 6283. [2020-10-20 02:45:32,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6283 states. [2020-10-20 02:45:32,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6283 states to 6283 states and 22823 transitions. [2020-10-20 02:45:32,511 INFO L78 Accepts]: Start accepts. Automaton has 6283 states and 22823 transitions. Word has length 17 [2020-10-20 02:45:32,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:45:32,511 INFO L481 AbstractCegarLoop]: Abstraction has 6283 states and 22823 transitions. [2020-10-20 02:45:32,511 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 02:45:32,511 INFO L276 IsEmpty]: Start isEmpty. Operand 6283 states and 22823 transitions. [2020-10-20 02:45:32,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 02:45:32,519 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:45:32,519 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 02:45:32,520 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-20 02:45:32,520 INFO L429 AbstractCegarLoop]: === Iteration 7 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:45:32,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:45:32,520 INFO L82 PathProgramCache]: Analyzing trace with hash -1724789375, now seen corresponding path program 1 times [2020-10-20 02:45:32,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:45:32,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106373094] [2020-10-20 02:45:32,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:45:32,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:45:32,605 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 02:45:32,605 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106373094] [2020-10-20 02:45:32,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:45:32,606 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 02:45:32,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321023963] [2020-10-20 02:45:32,606 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 02:45:32,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:45:32,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 02:45:32,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 02:45:32,608 INFO L87 Difference]: Start difference. First operand 6283 states and 22823 transitions. Second operand 4 states. [2020-10-20 02:45:32,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:45:32,726 INFO L93 Difference]: Finished difference Result 7109 states and 25248 transitions. [2020-10-20 02:45:32,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 02:45:32,728 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-20 02:45:32,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:45:32,740 INFO L225 Difference]: With dead ends: 7109 [2020-10-20 02:45:32,740 INFO L226 Difference]: Without dead ends: 3617 [2020-10-20 02:45:32,741 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 02:45:32,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3617 states. [2020-10-20 02:45:32,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3617 to 3578. [2020-10-20 02:45:32,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3578 states. [2020-10-20 02:45:32,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3578 states to 3578 states and 11968 transitions. [2020-10-20 02:45:32,900 INFO L78 Accepts]: Start accepts. Automaton has 3578 states and 11968 transitions. Word has length 17 [2020-10-20 02:45:32,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:45:32,901 INFO L481 AbstractCegarLoop]: Abstraction has 3578 states and 11968 transitions. [2020-10-20 02:45:32,901 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 02:45:32,901 INFO L276 IsEmpty]: Start isEmpty. Operand 3578 states and 11968 transitions. [2020-10-20 02:45:32,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-20 02:45:32,904 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:45:32,905 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 02:45:32,905 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-20 02:45:32,905 INFO L429 AbstractCegarLoop]: === Iteration 8 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:45:32,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:45:32,905 INFO L82 PathProgramCache]: Analyzing trace with hash 1290451073, now seen corresponding path program 1 times [2020-10-20 02:45:32,906 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:45:32,906 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447709201] [2020-10-20 02:45:32,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:45:32,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:45:32,973 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 02:45:32,973 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447709201] [2020-10-20 02:45:32,973 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:45:32,973 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 02:45:32,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958466868] [2020-10-20 02:45:32,974 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 02:45:32,974 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:45:32,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 02:45:32,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 02:45:32,975 INFO L87 Difference]: Start difference. First operand 3578 states and 11968 transitions. Second operand 3 states. [2020-10-20 02:45:33,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:45:33,027 INFO L93 Difference]: Finished difference Result 3578 states and 11873 transitions. [2020-10-20 02:45:33,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 02:45:33,028 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-20 02:45:33,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:45:33,038 INFO L225 Difference]: With dead ends: 3578 [2020-10-20 02:45:33,038 INFO L226 Difference]: Without dead ends: 2269 [2020-10-20 02:45:33,039 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 02:45:33,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2269 states. [2020-10-20 02:45:33,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2269 to 2269. [2020-10-20 02:45:33,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2269 states. [2020-10-20 02:45:33,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2269 states to 2269 states and 7120 transitions. [2020-10-20 02:45:33,105 INFO L78 Accepts]: Start accepts. Automaton has 2269 states and 7120 transitions. Word has length 19 [2020-10-20 02:45:33,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:45:33,105 INFO L481 AbstractCegarLoop]: Abstraction has 2269 states and 7120 transitions. [2020-10-20 02:45:33,105 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 02:45:33,106 INFO L276 IsEmpty]: Start isEmpty. Operand 2269 states and 7120 transitions. [2020-10-20 02:45:33,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-20 02:45:33,109 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:45:33,109 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 02:45:33,109 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-20 02:45:33,109 INFO L429 AbstractCegarLoop]: === Iteration 9 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:45:33,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:45:33,110 INFO L82 PathProgramCache]: Analyzing trace with hash -1925760575, now seen corresponding path program 1 times [2020-10-20 02:45:33,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:45:33,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295434634] [2020-10-20 02:45:33,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:45:33,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:45:33,145 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 02:45:33,145 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295434634] [2020-10-20 02:45:33,146 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:45:33,146 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 02:45:33,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639611800] [2020-10-20 02:45:33,146 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 02:45:33,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:45:33,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 02:45:33,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 02:45:33,148 INFO L87 Difference]: Start difference. First operand 2269 states and 7120 transitions. Second operand 3 states. [2020-10-20 02:45:33,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:45:33,173 INFO L93 Difference]: Finished difference Result 2269 states and 7062 transitions. [2020-10-20 02:45:33,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 02:45:33,173 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-20 02:45:33,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:45:33,181 INFO L225 Difference]: With dead ends: 2269 [2020-10-20 02:45:33,181 INFO L226 Difference]: Without dead ends: 1763 [2020-10-20 02:45:33,181 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 02:45:33,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1763 states. [2020-10-20 02:45:33,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1763 to 1624. [2020-10-20 02:45:33,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1624 states. [2020-10-20 02:45:33,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1624 states to 1624 states and 5015 transitions. [2020-10-20 02:45:33,253 INFO L78 Accepts]: Start accepts. Automaton has 1624 states and 5015 transitions. Word has length 19 [2020-10-20 02:45:33,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:45:33,253 INFO L481 AbstractCegarLoop]: Abstraction has 1624 states and 5015 transitions. [2020-10-20 02:45:33,253 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 02:45:33,253 INFO L276 IsEmpty]: Start isEmpty. Operand 1624 states and 5015 transitions. [2020-10-20 02:45:33,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-20 02:45:33,257 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:45:33,257 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, 1, 1] [2020-10-20 02:45:33,257 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-20 02:45:33,257 INFO L429 AbstractCegarLoop]: === Iteration 10 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:45:33,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:45:33,258 INFO L82 PathProgramCache]: Analyzing trace with hash -1194818003, now seen corresponding path program 1 times [2020-10-20 02:45:33,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:45:33,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253199409] [2020-10-20 02:45:33,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:45:33,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:45:33,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 02:45:33,295 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253199409] [2020-10-20 02:45:33,295 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:45:33,296 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 02:45:33,296 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697296812] [2020-10-20 02:45:33,296 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 02:45:33,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:45:33,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 02:45:33,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 02:45:33,297 INFO L87 Difference]: Start difference. First operand 1624 states and 5015 transitions. Second operand 3 states. [2020-10-20 02:45:33,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:45:33,346 INFO L93 Difference]: Finished difference Result 1975 states and 5955 transitions. [2020-10-20 02:45:33,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 02:45:33,347 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-10-20 02:45:33,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:45:33,358 INFO L225 Difference]: With dead ends: 1975 [2020-10-20 02:45:33,358 INFO L226 Difference]: Without dead ends: 1975 [2020-10-20 02:45:33,358 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 02:45:33,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1975 states. [2020-10-20 02:45:33,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1975 to 1688. [2020-10-20 02:45:33,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1688 states. [2020-10-20 02:45:33,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1688 states to 1688 states and 5205 transitions. [2020-10-20 02:45:33,411 INFO L78 Accepts]: Start accepts. Automaton has 1688 states and 5205 transitions. Word has length 22 [2020-10-20 02:45:33,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:45:33,412 INFO L481 AbstractCegarLoop]: Abstraction has 1688 states and 5205 transitions. [2020-10-20 02:45:33,412 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 02:45:33,412 INFO L276 IsEmpty]: Start isEmpty. Operand 1688 states and 5205 transitions. [2020-10-20 02:45:33,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-20 02:45:33,417 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:45:33,417 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, 1, 1] [2020-10-20 02:45:33,418 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-20 02:45:33,418 INFO L429 AbstractCegarLoop]: === Iteration 11 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:45:33,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:45:33,418 INFO L82 PathProgramCache]: Analyzing trace with hash -1194817011, now seen corresponding path program 1 times [2020-10-20 02:45:33,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:45:33,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716239672] [2020-10-20 02:45:33,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:45:33,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:45:33,505 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 02:45:33,506 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716239672] [2020-10-20 02:45:33,506 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:45:33,507 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 02:45:33,507 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102289556] [2020-10-20 02:45:33,507 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 02:45:33,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:45:33,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 02:45:33,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 02:45:33,508 INFO L87 Difference]: Start difference. First operand 1688 states and 5205 transitions. Second operand 5 states. [2020-10-20 02:45:33,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:45:33,676 INFO L93 Difference]: Finished difference Result 2071 states and 6175 transitions. [2020-10-20 02:45:33,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 02:45:33,676 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-10-20 02:45:33,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:45:33,682 INFO L225 Difference]: With dead ends: 2071 [2020-10-20 02:45:33,682 INFO L226 Difference]: Without dead ends: 1891 [2020-10-20 02:45:33,683 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-20 02:45:33,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1891 states. [2020-10-20 02:45:33,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1891 to 1728. [2020-10-20 02:45:33,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1728 states. [2020-10-20 02:45:33,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1728 states to 1728 states and 5289 transitions. [2020-10-20 02:45:33,722 INFO L78 Accepts]: Start accepts. Automaton has 1728 states and 5289 transitions. Word has length 22 [2020-10-20 02:45:33,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:45:33,722 INFO L481 AbstractCegarLoop]: Abstraction has 1728 states and 5289 transitions. [2020-10-20 02:45:33,722 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 02:45:33,722 INFO L276 IsEmpty]: Start isEmpty. Operand 1728 states and 5289 transitions. [2020-10-20 02:45:33,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-20 02:45:33,726 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:45:33,726 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, 1, 1] [2020-10-20 02:45:33,726 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-20 02:45:33,726 INFO L429 AbstractCegarLoop]: === Iteration 12 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:45:33,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:45:33,727 INFO L82 PathProgramCache]: Analyzing trace with hash 779557775, now seen corresponding path program 1 times [2020-10-20 02:45:33,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:45:33,727 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890748295] [2020-10-20 02:45:33,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:45:33,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:45:33,764 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 02:45:33,765 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890748295] [2020-10-20 02:45:33,765 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:45:33,765 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 02:45:33,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774592060] [2020-10-20 02:45:33,766 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 02:45:33,766 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:45:33,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 02:45:33,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 02:45:33,766 INFO L87 Difference]: Start difference. First operand 1728 states and 5289 transitions. Second operand 3 states. [2020-10-20 02:45:33,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:45:33,788 INFO L93 Difference]: Finished difference Result 1225 states and 3507 transitions. [2020-10-20 02:45:33,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 02:45:33,789 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-10-20 02:45:33,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:45:33,793 INFO L225 Difference]: With dead ends: 1225 [2020-10-20 02:45:33,793 INFO L226 Difference]: Without dead ends: 1225 [2020-10-20 02:45:33,794 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 02:45:33,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1225 states. [2020-10-20 02:45:33,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1225 to 1153. [2020-10-20 02:45:33,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1153 states. [2020-10-20 02:45:33,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1153 states to 1153 states and 3390 transitions. [2020-10-20 02:45:33,817 INFO L78 Accepts]: Start accepts. Automaton has 1153 states and 3390 transitions. Word has length 22 [2020-10-20 02:45:33,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:45:33,819 INFO L481 AbstractCegarLoop]: Abstraction has 1153 states and 3390 transitions. [2020-10-20 02:45:33,819 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 02:45:33,819 INFO L276 IsEmpty]: Start isEmpty. Operand 1153 states and 3390 transitions. [2020-10-20 02:45:33,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-20 02:45:33,824 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:45:33,824 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, 1, 1, 1] [2020-10-20 02:45:33,825 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-20 02:45:33,825 INFO L429 AbstractCegarLoop]: === Iteration 13 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:45:33,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:45:33,825 INFO L82 PathProgramCache]: Analyzing trace with hash 743310079, now seen corresponding path program 1 times [2020-10-20 02:45:33,825 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:45:33,825 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30370768] [2020-10-20 02:45:33,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:45:33,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:45:33,933 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 02:45:33,934 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30370768] [2020-10-20 02:45:33,935 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:45:33,935 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-20 02:45:33,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978121556] [2020-10-20 02:45:33,935 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-20 02:45:33,935 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:45:33,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-20 02:45:33,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-20 02:45:33,938 INFO L87 Difference]: Start difference. First operand 1153 states and 3390 transitions. Second operand 8 states. [2020-10-20 02:45:34,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:45:34,412 INFO L93 Difference]: Finished difference Result 1358 states and 3900 transitions. [2020-10-20 02:45:34,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-20 02:45:34,413 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2020-10-20 02:45:34,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:45:34,419 INFO L225 Difference]: With dead ends: 1358 [2020-10-20 02:45:34,421 INFO L226 Difference]: Without dead ends: 1347 [2020-10-20 02:45:34,422 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2020-10-20 02:45:34,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1347 states. [2020-10-20 02:45:34,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1347 to 1171. [2020-10-20 02:45:34,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1171 states. [2020-10-20 02:45:34,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1171 states to 1171 states and 3411 transitions. [2020-10-20 02:45:34,448 INFO L78 Accepts]: Start accepts. Automaton has 1171 states and 3411 transitions. Word has length 23 [2020-10-20 02:45:34,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:45:34,448 INFO L481 AbstractCegarLoop]: Abstraction has 1171 states and 3411 transitions. [2020-10-20 02:45:34,448 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-20 02:45:34,449 INFO L276 IsEmpty]: Start isEmpty. Operand 1171 states and 3411 transitions. [2020-10-20 02:45:34,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-20 02:45:34,452 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:45:34,452 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, 1, 1, 1] [2020-10-20 02:45:34,453 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-20 02:45:34,453 INFO L429 AbstractCegarLoop]: === Iteration 14 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:45:34,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:45:34,453 INFO L82 PathProgramCache]: Analyzing trace with hash -1176879653, now seen corresponding path program 2 times [2020-10-20 02:45:34,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:45:34,454 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217933811] [2020-10-20 02:45:34,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:45:34,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:45:34,596 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 02:45:34,596 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217933811] [2020-10-20 02:45:34,596 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:45:34,596 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-20 02:45:34,596 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587723234] [2020-10-20 02:45:34,597 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-20 02:45:34,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:45:34,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-20 02:45:34,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-20 02:45:34,597 INFO L87 Difference]: Start difference. First operand 1171 states and 3411 transitions. Second operand 9 states. [2020-10-20 02:45:35,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:45:35,068 INFO L93 Difference]: Finished difference Result 1558 states and 4461 transitions. [2020-10-20 02:45:35,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-20 02:45:35,069 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-10-20 02:45:35,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:45:35,073 INFO L225 Difference]: With dead ends: 1558 [2020-10-20 02:45:35,073 INFO L226 Difference]: Without dead ends: 1558 [2020-10-20 02:45:35,073 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2020-10-20 02:45:35,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1558 states. [2020-10-20 02:45:35,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1558 to 1261. [2020-10-20 02:45:35,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1261 states. [2020-10-20 02:45:35,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1261 states to 1261 states and 3691 transitions. [2020-10-20 02:45:35,108 INFO L78 Accepts]: Start accepts. Automaton has 1261 states and 3691 transitions. Word has length 23 [2020-10-20 02:45:35,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:45:35,108 INFO L481 AbstractCegarLoop]: Abstraction has 1261 states and 3691 transitions. [2020-10-20 02:45:35,108 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-20 02:45:35,109 INFO L276 IsEmpty]: Start isEmpty. Operand 1261 states and 3691 transitions. [2020-10-20 02:45:35,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-20 02:45:35,112 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:45:35,112 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, 1, 1, 1] [2020-10-20 02:45:35,112 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-20 02:45:35,112 INFO L429 AbstractCegarLoop]: === Iteration 15 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:45:35,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:45:35,113 INFO L82 PathProgramCache]: Analyzing trace with hash -191578893, now seen corresponding path program 1 times [2020-10-20 02:45:35,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:45:35,113 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199291584] [2020-10-20 02:45:35,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:45:35,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:45:35,234 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 02:45:35,234 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199291584] [2020-10-20 02:45:35,234 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:45:35,234 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-20 02:45:35,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797860706] [2020-10-20 02:45:35,235 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-20 02:45:35,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:45:35,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-20 02:45:35,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-20 02:45:35,235 INFO L87 Difference]: Start difference. First operand 1261 states and 3691 transitions. Second operand 9 states. [2020-10-20 02:45:35,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:45:35,779 INFO L93 Difference]: Finished difference Result 1661 states and 4707 transitions. [2020-10-20 02:45:35,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-20 02:45:35,780 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-10-20 02:45:35,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:45:35,784 INFO L225 Difference]: With dead ends: 1661 [2020-10-20 02:45:35,784 INFO L226 Difference]: Without dead ends: 1661 [2020-10-20 02:45:35,784 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2020-10-20 02:45:35,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1661 states. [2020-10-20 02:45:35,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1661 to 1355. [2020-10-20 02:45:35,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1355 states. [2020-10-20 02:45:35,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1355 states to 1355 states and 3968 transitions. [2020-10-20 02:45:35,815 INFO L78 Accepts]: Start accepts. Automaton has 1355 states and 3968 transitions. Word has length 23 [2020-10-20 02:45:35,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:45:35,815 INFO L481 AbstractCegarLoop]: Abstraction has 1355 states and 3968 transitions. [2020-10-20 02:45:35,815 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-20 02:45:35,815 INFO L276 IsEmpty]: Start isEmpty. Operand 1355 states and 3968 transitions. [2020-10-20 02:45:35,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-20 02:45:35,819 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:45:35,819 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, 1, 1, 1] [2020-10-20 02:45:35,819 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-20 02:45:35,819 INFO L429 AbstractCegarLoop]: === Iteration 16 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:45:35,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:45:35,819 INFO L82 PathProgramCache]: Analyzing trace with hash -1283943529, now seen corresponding path program 2 times [2020-10-20 02:45:35,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:45:35,820 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832770175] [2020-10-20 02:45:35,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:45:35,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:45:35,966 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 02:45:35,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832770175] [2020-10-20 02:45:35,967 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:45:35,967 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-20 02:45:35,968 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268915815] [2020-10-20 02:45:35,968 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-20 02:45:35,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:45:35,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-20 02:45:35,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-20 02:45:35,969 INFO L87 Difference]: Start difference. First operand 1355 states and 3968 transitions. Second operand 9 states. [2020-10-20 02:45:36,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:45:36,522 INFO L93 Difference]: Finished difference Result 1727 states and 4894 transitions. [2020-10-20 02:45:36,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-20 02:45:36,522 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-10-20 02:45:36,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:45:36,525 INFO L225 Difference]: With dead ends: 1727 [2020-10-20 02:45:36,526 INFO L226 Difference]: Without dead ends: 1727 [2020-10-20 02:45:36,526 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2020-10-20 02:45:36,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1727 states. [2020-10-20 02:45:36,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1727 to 1255. [2020-10-20 02:45:36,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1255 states. [2020-10-20 02:45:36,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 3647 transitions. [2020-10-20 02:45:36,554 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 3647 transitions. Word has length 23 [2020-10-20 02:45:36,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:45:36,555 INFO L481 AbstractCegarLoop]: Abstraction has 1255 states and 3647 transitions. [2020-10-20 02:45:36,556 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-20 02:45:36,556 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 3647 transitions. [2020-10-20 02:45:36,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-20 02:45:36,561 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:45:36,561 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, 1, 1, 1] [2020-10-20 02:45:36,562 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-20 02:45:36,562 INFO L429 AbstractCegarLoop]: === Iteration 17 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:45:36,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:45:36,562 INFO L82 PathProgramCache]: Analyzing trace with hash 299417011, now seen corresponding path program 3 times [2020-10-20 02:45:36,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:45:36,563 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516794401] [2020-10-20 02:45:36,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:45:36,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:45:36,638 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 02:45:36,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516794401] [2020-10-20 02:45:36,638 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:45:36,638 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-20 02:45:36,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074632508] [2020-10-20 02:45:36,639 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-20 02:45:36,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:45:36,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-20 02:45:36,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-20 02:45:36,640 INFO L87 Difference]: Start difference. First operand 1255 states and 3647 transitions. Second operand 8 states. [2020-10-20 02:45:37,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:45:37,024 INFO L93 Difference]: Finished difference Result 1513 states and 4301 transitions. [2020-10-20 02:45:37,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-20 02:45:37,025 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2020-10-20 02:45:37,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:45:37,028 INFO L225 Difference]: With dead ends: 1513 [2020-10-20 02:45:37,028 INFO L226 Difference]: Without dead ends: 1513 [2020-10-20 02:45:37,029 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2020-10-20 02:45:37,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2020-10-20 02:45:37,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1266. [2020-10-20 02:45:37,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1266 states. [2020-10-20 02:45:37,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1266 states to 1266 states and 3678 transitions. [2020-10-20 02:45:37,055 INFO L78 Accepts]: Start accepts. Automaton has 1266 states and 3678 transitions. Word has length 23 [2020-10-20 02:45:37,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:45:37,056 INFO L481 AbstractCegarLoop]: Abstraction has 1266 states and 3678 transitions. [2020-10-20 02:45:37,056 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-20 02:45:37,056 INFO L276 IsEmpty]: Start isEmpty. Operand 1266 states and 3678 transitions. [2020-10-20 02:45:37,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-20 02:45:37,059 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:45:37,059 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, 1, 1, 1] [2020-10-20 02:45:37,059 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-20 02:45:37,059 INFO L429 AbstractCegarLoop]: === Iteration 18 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:45:37,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:45:37,060 INFO L82 PathProgramCache]: Analyzing trace with hash -666116353, now seen corresponding path program 4 times [2020-10-20 02:45:37,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:45:37,063 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645840077] [2020-10-20 02:45:37,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:45:37,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:45:37,144 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 02:45:37,144 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645840077] [2020-10-20 02:45:37,145 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:45:37,145 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-20 02:45:37,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140455291] [2020-10-20 02:45:37,145 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-20 02:45:37,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:45:37,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-20 02:45:37,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-20 02:45:37,146 INFO L87 Difference]: Start difference. First operand 1266 states and 3678 transitions. Second operand 8 states. [2020-10-20 02:45:37,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:45:37,472 INFO L93 Difference]: Finished difference Result 1447 states and 4150 transitions. [2020-10-20 02:45:37,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-20 02:45:37,472 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2020-10-20 02:45:37,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:45:37,474 INFO L225 Difference]: With dead ends: 1447 [2020-10-20 02:45:37,474 INFO L226 Difference]: Without dead ends: 1447 [2020-10-20 02:45:37,475 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-20 02:45:37,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1447 states. [2020-10-20 02:45:37,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1447 to 1246. [2020-10-20 02:45:37,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1246 states. [2020-10-20 02:45:37,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1246 states to 1246 states and 3632 transitions. [2020-10-20 02:45:37,499 INFO L78 Accepts]: Start accepts. Automaton has 1246 states and 3632 transitions. Word has length 23 [2020-10-20 02:45:37,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:45:37,500 INFO L481 AbstractCegarLoop]: Abstraction has 1246 states and 3632 transitions. [2020-10-20 02:45:37,500 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-20 02:45:37,500 INFO L276 IsEmpty]: Start isEmpty. Operand 1246 states and 3632 transitions. [2020-10-20 02:45:37,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-20 02:45:37,502 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:45:37,503 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, 1, 1, 1] [2020-10-20 02:45:37,503 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-20 02:45:37,503 INFO L429 AbstractCegarLoop]: === Iteration 19 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:45:37,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:45:37,503 INFO L82 PathProgramCache]: Analyzing trace with hash -817156723, now seen corresponding path program 5 times [2020-10-20 02:45:37,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:45:37,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996016507] [2020-10-20 02:45:37,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:45:37,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:45:37,596 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 02:45:37,596 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996016507] [2020-10-20 02:45:37,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:45:37,597 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 02:45:37,597 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295376440] [2020-10-20 02:45:37,597 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 02:45:37,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:45:37,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 02:45:37,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-20 02:45:37,598 INFO L87 Difference]: Start difference. First operand 1246 states and 3632 transitions. Second operand 6 states. [2020-10-20 02:45:37,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:45:37,744 INFO L93 Difference]: Finished difference Result 1492 states and 4170 transitions. [2020-10-20 02:45:37,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-20 02:45:37,744 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2020-10-20 02:45:37,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:45:37,746 INFO L225 Difference]: With dead ends: 1492 [2020-10-20 02:45:37,746 INFO L226 Difference]: Without dead ends: 947 [2020-10-20 02:45:37,746 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-10-20 02:45:37,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2020-10-20 02:45:37,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 807. [2020-10-20 02:45:37,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 807 states. [2020-10-20 02:45:37,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 2066 transitions. [2020-10-20 02:45:37,761 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 2066 transitions. Word has length 23 [2020-10-20 02:45:37,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:45:37,761 INFO L481 AbstractCegarLoop]: Abstraction has 807 states and 2066 transitions. [2020-10-20 02:45:37,761 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 02:45:37,761 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 2066 transitions. [2020-10-20 02:45:37,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-20 02:45:37,763 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:45:37,763 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, 1, 1, 1] [2020-10-20 02:45:37,763 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-20 02:45:37,763 INFO L429 AbstractCegarLoop]: === Iteration 20 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:45:37,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:45:37,764 INFO L82 PathProgramCache]: Analyzing trace with hash -1651857627, now seen corresponding path program 3 times [2020-10-20 02:45:37,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:45:37,764 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847861574] [2020-10-20 02:45:37,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:45:37,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:45:37,852 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 02:45:37,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847861574] [2020-10-20 02:45:37,853 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:45:37,853 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-20 02:45:37,853 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208720683] [2020-10-20 02:45:37,853 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-20 02:45:37,854 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:45:37,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-20 02:45:37,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-20 02:45:37,854 INFO L87 Difference]: Start difference. First operand 807 states and 2066 transitions. Second operand 9 states. [2020-10-20 02:45:38,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:45:38,358 INFO L93 Difference]: Finished difference Result 964 states and 2463 transitions. [2020-10-20 02:45:38,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-20 02:45:38,358 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-10-20 02:45:38,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:45:38,360 INFO L225 Difference]: With dead ends: 964 [2020-10-20 02:45:38,360 INFO L226 Difference]: Without dead ends: 964 [2020-10-20 02:45:38,360 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2020-10-20 02:45:38,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 964 states. [2020-10-20 02:45:38,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 964 to 716. [2020-10-20 02:45:38,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 716 states. [2020-10-20 02:45:38,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 1828 transitions. [2020-10-20 02:45:38,377 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 1828 transitions. Word has length 23 [2020-10-20 02:45:38,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:45:38,378 INFO L481 AbstractCegarLoop]: Abstraction has 716 states and 1828 transitions. [2020-10-20 02:45:38,378 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-20 02:45:38,378 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 1828 transitions. [2020-10-20 02:45:38,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-20 02:45:38,379 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:45:38,379 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 02:45:38,380 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-20 02:45:38,380 INFO L429 AbstractCegarLoop]: === Iteration 21 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:45:38,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:45:38,380 INFO L82 PathProgramCache]: Analyzing trace with hash 101279203, now seen corresponding path program 1 times [2020-10-20 02:45:38,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:45:38,381 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125382301] [2020-10-20 02:45:38,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:45:38,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:45:38,454 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 02:45:38,455 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125382301] [2020-10-20 02:45:38,455 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:45:38,455 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-20 02:45:38,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280049698] [2020-10-20 02:45:38,455 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 02:45:38,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:45:38,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 02:45:38,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-20 02:45:38,456 INFO L87 Difference]: Start difference. First operand 716 states and 1828 transitions. Second operand 7 states. [2020-10-20 02:45:38,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:45:38,643 INFO L93 Difference]: Finished difference Result 788 states and 2038 transitions. [2020-10-20 02:45:38,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-20 02:45:38,644 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2020-10-20 02:45:38,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:45:38,645 INFO L225 Difference]: With dead ends: 788 [2020-10-20 02:45:38,646 INFO L226 Difference]: Without dead ends: 696 [2020-10-20 02:45:38,646 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-20 02:45:38,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2020-10-20 02:45:38,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 649. [2020-10-20 02:45:38,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 649 states. [2020-10-20 02:45:38,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 1665 transitions. [2020-10-20 02:45:38,679 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 1665 transitions. Word has length 28 [2020-10-20 02:45:38,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:45:38,679 INFO L481 AbstractCegarLoop]: Abstraction has 649 states and 1665 transitions. [2020-10-20 02:45:38,679 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 02:45:38,679 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 1665 transitions. [2020-10-20 02:45:38,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-20 02:45:38,681 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:45:38,681 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 02:45:38,681 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-20 02:45:38,682 INFO L429 AbstractCegarLoop]: === Iteration 22 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:45:38,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:45:38,682 INFO L82 PathProgramCache]: Analyzing trace with hash 1824275773, now seen corresponding path program 2 times [2020-10-20 02:45:38,682 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:45:38,683 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957623681] [2020-10-20 02:45:38,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:45:38,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:45:38,755 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 02:45:38,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957623681] [2020-10-20 02:45:38,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:45:38,756 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-20 02:45:38,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277744965] [2020-10-20 02:45:38,756 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 02:45:38,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:45:38,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 02:45:38,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-20 02:45:38,757 INFO L87 Difference]: Start difference. First operand 649 states and 1665 transitions. Second operand 7 states. [2020-10-20 02:45:38,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:45:38,957 INFO L93 Difference]: Finished difference Result 833 states and 2175 transitions. [2020-10-20 02:45:38,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-20 02:45:38,958 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2020-10-20 02:45:38,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:45:38,960 INFO L225 Difference]: With dead ends: 833 [2020-10-20 02:45:38,960 INFO L226 Difference]: Without dead ends: 698 [2020-10-20 02:45:38,960 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-10-20 02:45:38,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2020-10-20 02:45:38,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 599. [2020-10-20 02:45:38,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 599 states. [2020-10-20 02:45:38,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 1536 transitions. [2020-10-20 02:45:38,971 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 1536 transitions. Word has length 28 [2020-10-20 02:45:38,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:45:38,971 INFO L481 AbstractCegarLoop]: Abstraction has 599 states and 1536 transitions. [2020-10-20 02:45:38,971 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 02:45:38,972 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 1536 transitions. [2020-10-20 02:45:38,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-20 02:45:38,973 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:45:38,973 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 02:45:38,973 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-20 02:45:38,973 INFO L429 AbstractCegarLoop]: === Iteration 23 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:45:38,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:45:38,974 INFO L82 PathProgramCache]: Analyzing trace with hash -1300244385, now seen corresponding path program 1 times [2020-10-20 02:45:38,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:45:38,974 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744848515] [2020-10-20 02:45:38,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:45:38,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:45:39,041 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 02:45:39,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744848515] [2020-10-20 02:45:39,042 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:45:39,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-20 02:45:39,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145784966] [2020-10-20 02:45:39,042 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-20 02:45:39,043 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:45:39,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-20 02:45:39,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-20 02:45:39,043 INFO L87 Difference]: Start difference. First operand 599 states and 1536 transitions. Second operand 8 states. [2020-10-20 02:45:39,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:45:39,246 INFO L93 Difference]: Finished difference Result 660 states and 1752 transitions. [2020-10-20 02:45:39,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-20 02:45:39,246 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 28 [2020-10-20 02:45:39,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:45:39,248 INFO L225 Difference]: With dead ends: 660 [2020-10-20 02:45:39,248 INFO L226 Difference]: Without dead ends: 570 [2020-10-20 02:45:39,248 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-10-20 02:45:39,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2020-10-20 02:45:39,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 534. [2020-10-20 02:45:39,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 534 states. [2020-10-20 02:45:39,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 1377 transitions. [2020-10-20 02:45:39,257 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 1377 transitions. Word has length 28 [2020-10-20 02:45:39,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:45:39,258 INFO L481 AbstractCegarLoop]: Abstraction has 534 states and 1377 transitions. [2020-10-20 02:45:39,258 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-20 02:45:39,258 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 1377 transitions. [2020-10-20 02:45:39,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-20 02:45:39,259 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:45:39,260 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 02:45:39,260 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-20 02:45:39,260 INFO L429 AbstractCegarLoop]: === Iteration 24 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:45:39,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:45:39,261 INFO L82 PathProgramCache]: Analyzing trace with hash -652482683, now seen corresponding path program 2 times [2020-10-20 02:45:39,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:45:39,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861002313] [2020-10-20 02:45:39,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:45:39,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:45:39,376 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 02:45:39,376 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861002313] [2020-10-20 02:45:39,376 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:45:39,377 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-20 02:45:39,377 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180084014] [2020-10-20 02:45:39,377 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 02:45:39,377 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:45:39,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 02:45:39,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-20 02:45:39,378 INFO L87 Difference]: Start difference. First operand 534 states and 1377 transitions. Second operand 7 states. [2020-10-20 02:45:39,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:45:39,559 INFO L93 Difference]: Finished difference Result 729 states and 1958 transitions. [2020-10-20 02:45:39,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-20 02:45:39,560 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2020-10-20 02:45:39,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:45:39,562 INFO L225 Difference]: With dead ends: 729 [2020-10-20 02:45:39,562 INFO L226 Difference]: Without dead ends: 518 [2020-10-20 02:45:39,562 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-10-20 02:45:39,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2020-10-20 02:45:39,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 444. [2020-10-20 02:45:39,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 444 states. [2020-10-20 02:45:39,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 1119 transitions. [2020-10-20 02:45:39,571 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 1119 transitions. Word has length 28 [2020-10-20 02:45:39,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:45:39,571 INFO L481 AbstractCegarLoop]: Abstraction has 444 states and 1119 transitions. [2020-10-20 02:45:39,571 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 02:45:39,571 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 1119 transitions. [2020-10-20 02:45:39,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-20 02:45:39,572 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:45:39,573 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 02:45:39,573 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-20 02:45:39,573 INFO L429 AbstractCegarLoop]: === Iteration 25 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:45:39,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:45:39,574 INFO L82 PathProgramCache]: Analyzing trace with hash 429779961, now seen corresponding path program 3 times [2020-10-20 02:45:39,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:45:39,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433574278] [2020-10-20 02:45:39,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:45:39,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:45:39,602 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 02:45:39,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433574278] [2020-10-20 02:45:39,602 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:45:39,603 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 02:45:39,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311845424] [2020-10-20 02:45:39,603 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 02:45:39,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:45:39,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 02:45:39,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 02:45:39,604 INFO L87 Difference]: Start difference. First operand 444 states and 1119 transitions. Second operand 4 states. [2020-10-20 02:45:39,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:45:39,647 INFO L93 Difference]: Finished difference Result 538 states and 1321 transitions. [2020-10-20 02:45:39,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 02:45:39,648 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2020-10-20 02:45:39,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:45:39,649 INFO L225 Difference]: With dead ends: 538 [2020-10-20 02:45:39,649 INFO L226 Difference]: Without dead ends: 530 [2020-10-20 02:45:39,649 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 02:45:39,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2020-10-20 02:45:39,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 444. [2020-10-20 02:45:39,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 444 states. [2020-10-20 02:45:39,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 1111 transitions. [2020-10-20 02:45:39,657 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 1111 transitions. Word has length 28 [2020-10-20 02:45:39,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:45:39,658 INFO L481 AbstractCegarLoop]: Abstraction has 444 states and 1111 transitions. [2020-10-20 02:45:39,658 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 02:45:39,658 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 1111 transitions. [2020-10-20 02:45:39,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-20 02:45:39,659 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:45:39,659 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 02:45:39,659 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-20 02:45:39,660 INFO L429 AbstractCegarLoop]: === Iteration 26 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:45:39,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:45:39,660 INFO L82 PathProgramCache]: Analyzing trace with hash 235847577, now seen corresponding path program 1 times [2020-10-20 02:45:39,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:45:39,661 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520765873] [2020-10-20 02:45:39,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:45:39,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:45:39,703 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 02:45:39,703 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520765873] [2020-10-20 02:45:39,704 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:45:39,704 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-20 02:45:39,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403604379] [2020-10-20 02:45:39,704 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 02:45:39,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:45:39,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 02:45:39,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-20 02:45:39,705 INFO L87 Difference]: Start difference. First operand 444 states and 1111 transitions. Second operand 6 states. [2020-10-20 02:45:39,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:45:39,826 INFO L93 Difference]: Finished difference Result 558 states and 1391 transitions. [2020-10-20 02:45:39,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-20 02:45:39,827 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2020-10-20 02:45:39,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:45:39,828 INFO L225 Difference]: With dead ends: 558 [2020-10-20 02:45:39,828 INFO L226 Difference]: Without dead ends: 474 [2020-10-20 02:45:39,828 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-10-20 02:45:39,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2020-10-20 02:45:39,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 428. [2020-10-20 02:45:39,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 428 states. [2020-10-20 02:45:39,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 1059 transitions. [2020-10-20 02:45:39,837 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 1059 transitions. Word has length 28 [2020-10-20 02:45:39,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:45:39,838 INFO L481 AbstractCegarLoop]: Abstraction has 428 states and 1059 transitions. [2020-10-20 02:45:39,838 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 02:45:39,838 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 1059 transitions. [2020-10-20 02:45:39,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-20 02:45:39,839 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:45:39,839 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 02:45:39,840 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-20 02:45:39,840 INFO L429 AbstractCegarLoop]: === Iteration 27 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:45:39,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:45:39,840 INFO L82 PathProgramCache]: Analyzing trace with hash 2041657235, now seen corresponding path program 4 times [2020-10-20 02:45:39,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:45:39,841 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074785787] [2020-10-20 02:45:39,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:45:39,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:45:39,905 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 02:45:39,906 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074785787] [2020-10-20 02:45:39,906 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:45:39,906 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-20 02:45:39,906 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752518842] [2020-10-20 02:45:39,906 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 02:45:39,907 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:45:39,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 02:45:39,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-20 02:45:39,908 INFO L87 Difference]: Start difference. First operand 428 states and 1059 transitions. Second operand 7 states. [2020-10-20 02:45:40,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:45:40,112 INFO L93 Difference]: Finished difference Result 505 states and 1221 transitions. [2020-10-20 02:45:40,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-20 02:45:40,113 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2020-10-20 02:45:40,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:45:40,114 INFO L225 Difference]: With dead ends: 505 [2020-10-20 02:45:40,114 INFO L226 Difference]: Without dead ends: 400 [2020-10-20 02:45:40,114 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-20 02:45:40,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2020-10-20 02:45:40,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 400. [2020-10-20 02:45:40,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 400 states. [2020-10-20 02:45:40,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 952 transitions. [2020-10-20 02:45:40,122 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 952 transitions. Word has length 28 [2020-10-20 02:45:40,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:45:40,122 INFO L481 AbstractCegarLoop]: Abstraction has 400 states and 952 transitions. [2020-10-20 02:45:40,122 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 02:45:40,122 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 952 transitions. [2020-10-20 02:45:40,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-20 02:45:40,123 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:45:40,123 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 02:45:40,124 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-20 02:45:40,124 INFO L429 AbstractCegarLoop]: === Iteration 28 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:45:40,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:45:40,124 INFO L82 PathProgramCache]: Analyzing trace with hash -2072091323, now seen corresponding path program 5 times [2020-10-20 02:45:40,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:45:40,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677434487] [2020-10-20 02:45:40,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:45:40,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:45:40,187 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 02:45:40,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677434487] [2020-10-20 02:45:40,188 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:45:40,188 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-20 02:45:40,188 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887471992] [2020-10-20 02:45:40,188 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 02:45:40,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:45:40,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 02:45:40,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-20 02:45:40,190 INFO L87 Difference]: Start difference. First operand 400 states and 952 transitions. Second operand 7 states. [2020-10-20 02:45:40,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:45:40,345 INFO L93 Difference]: Finished difference Result 376 states and 906 transitions. [2020-10-20 02:45:40,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-20 02:45:40,346 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2020-10-20 02:45:40,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:45:40,347 INFO L225 Difference]: With dead ends: 376 [2020-10-20 02:45:40,347 INFO L226 Difference]: Without dead ends: 235 [2020-10-20 02:45:40,347 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-20 02:45:40,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2020-10-20 02:45:40,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 223. [2020-10-20 02:45:40,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2020-10-20 02:45:40,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 544 transitions. [2020-10-20 02:45:40,351 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 544 transitions. Word has length 28 [2020-10-20 02:45:40,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:45:40,351 INFO L481 AbstractCegarLoop]: Abstraction has 223 states and 544 transitions. [2020-10-20 02:45:40,351 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 02:45:40,351 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 544 transitions. [2020-10-20 02:45:40,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-20 02:45:40,352 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:45:40,352 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 02:45:40,352 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-20 02:45:40,352 INFO L429 AbstractCegarLoop]: === Iteration 29 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:45:40,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:45:40,353 INFO L82 PathProgramCache]: Analyzing trace with hash 126447145, now seen corresponding path program 3 times [2020-10-20 02:45:40,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:45:40,353 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885774947] [2020-10-20 02:45:40,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:45:40,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:45:40,443 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 02:45:40,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885774947] [2020-10-20 02:45:40,443 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:45:40,443 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-20 02:45:40,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881910150] [2020-10-20 02:45:40,444 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 02:45:40,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:45:40,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 02:45:40,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-20 02:45:40,444 INFO L87 Difference]: Start difference. First operand 223 states and 544 transitions. Second operand 7 states. [2020-10-20 02:45:40,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:45:40,593 INFO L93 Difference]: Finished difference Result 289 states and 702 transitions. [2020-10-20 02:45:40,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-20 02:45:40,594 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2020-10-20 02:45:40,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:45:40,594 INFO L225 Difference]: With dead ends: 289 [2020-10-20 02:45:40,595 INFO L226 Difference]: Without dead ends: 216 [2020-10-20 02:45:40,595 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-20 02:45:40,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2020-10-20 02:45:40,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 168. [2020-10-20 02:45:40,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2020-10-20 02:45:40,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 400 transitions. [2020-10-20 02:45:40,599 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 400 transitions. Word has length 28 [2020-10-20 02:45:40,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:45:40,600 INFO L481 AbstractCegarLoop]: Abstraction has 168 states and 400 transitions. [2020-10-20 02:45:40,600 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 02:45:40,600 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 400 transitions. [2020-10-20 02:45:40,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-20 02:45:40,600 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:45:40,601 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 02:45:40,601 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-20 02:45:40,601 INFO L429 AbstractCegarLoop]: === Iteration 30 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:45:40,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:45:40,601 INFO L82 PathProgramCache]: Analyzing trace with hash -1832373091, now seen corresponding path program 4 times [2020-10-20 02:45:40,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:45:40,602 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602854216] [2020-10-20 02:45:40,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:45:40,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:45:40,695 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 02:45:40,695 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602854216] [2020-10-20 02:45:40,695 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:45:40,696 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-20 02:45:40,696 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858849228] [2020-10-20 02:45:40,696 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-20 02:45:40,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:45:40,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-20 02:45:40,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-20 02:45:40,697 INFO L87 Difference]: Start difference. First operand 168 states and 400 transitions. Second operand 8 states. [2020-10-20 02:45:40,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:45:40,820 INFO L93 Difference]: Finished difference Result 150 states and 385 transitions. [2020-10-20 02:45:40,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-20 02:45:40,821 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 28 [2020-10-20 02:45:40,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:45:40,821 INFO L225 Difference]: With dead ends: 150 [2020-10-20 02:45:40,821 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 02:45:40,822 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-10-20 02:45:40,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 02:45:40,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 02:45:40,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 02:45:40,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 02:45:40,823 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2020-10-20 02:45:40,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:45:40,823 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 02:45:40,823 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-20 02:45:40,824 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 02:45:40,824 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 02:45:40,824 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-20 02:45:40,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 02:45:40 BasicIcfg [2020-10-20 02:45:40,827 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 02:45:40,827 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 02:45:40,827 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 02:45:40,827 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 02:45:40,828 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 02:45:22" (3/4) ... [2020-10-20 02:45:40,831 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 02:45:40,838 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure qrcu_reader1 [2020-10-20 02:45:40,838 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure qrcu_reader2 [2020-10-20 02:45:40,838 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure qrcu_updater [2020-10-20 02:45:40,843 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-10-20 02:45:40,844 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-20 02:45:40,844 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 02:45:40,844 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 02:45:40,885 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 02:45:40,886 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 02:45:40,887 INFO L168 Benchmark]: Toolchain (without parser) took 20971.48 ms. Allocated memory was 42.5 MB in the beginning and 257.4 MB in the end (delta: 215.0 MB). Free memory was 21.2 MB in the beginning and 146.6 MB in the end (delta: -125.5 MB). Peak memory consumption was 89.5 MB. Max. memory is 14.3 GB. [2020-10-20 02:45:40,888 INFO L168 Benchmark]: CDTParser took 1.15 ms. Allocated memory is still 32.5 MB. Free memory was 11.6 MB in the beginning and 11.6 MB in the end (delta: 3.1 kB). Peak memory consumption was 3.1 kB. Max. memory is 14.3 GB. [2020-10-20 02:45:40,888 INFO L168 Benchmark]: CACSL2BoogieTranslator took 699.49 ms. Allocated memory was 42.5 MB in the beginning and 45.1 MB in the end (delta: 2.6 MB). Free memory was 20.3 MB in the beginning and 17.0 MB in the end (delta: 3.3 MB). Peak memory consumption was 11.6 MB. Max. memory is 14.3 GB. [2020-10-20 02:45:40,889 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.70 ms. Allocated memory is still 45.1 MB. Free memory was 17.0 MB in the beginning and 14.1 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 14.3 GB. [2020-10-20 02:45:40,889 INFO L168 Benchmark]: Boogie Preprocessor took 39.44 ms. Allocated memory is still 45.1 MB. Free memory was 14.1 MB in the beginning and 11.8 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 14.3 GB. [2020-10-20 02:45:40,889 INFO L168 Benchmark]: RCFGBuilder took 1275.75 ms. Allocated memory was 45.1 MB in the beginning and 52.4 MB in the end (delta: 7.3 MB). Free memory was 11.8 MB in the beginning and 16.8 MB in the end (delta: -5.0 MB). Peak memory consumption was 10.1 MB. Max. memory is 14.3 GB. [2020-10-20 02:45:40,890 INFO L168 Benchmark]: TraceAbstraction took 18823.57 ms. Allocated memory was 52.4 MB in the beginning and 257.4 MB in the end (delta: 205.0 MB). Free memory was 16.3 MB in the beginning and 149.2 MB in the end (delta: -132.9 MB). Peak memory consumption was 72.1 MB. Max. memory is 14.3 GB. [2020-10-20 02:45:40,890 INFO L168 Benchmark]: Witness Printer took 58.45 ms. Allocated memory is still 257.4 MB. Free memory was 149.2 MB in the beginning and 146.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.3 GB. [2020-10-20 02:45:40,893 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.15 ms. Allocated memory is still 32.5 MB. Free memory was 11.6 MB in the beginning and 11.6 MB in the end (delta: 3.1 kB). Peak memory consumption was 3.1 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 699.49 ms. Allocated memory was 42.5 MB in the beginning and 45.1 MB in the end (delta: 2.6 MB). Free memory was 20.3 MB in the beginning and 17.0 MB in the end (delta: 3.3 MB). Peak memory consumption was 11.6 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 63.70 ms. Allocated memory is still 45.1 MB. Free memory was 17.0 MB in the beginning and 14.1 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 39.44 ms. Allocated memory is still 45.1 MB. Free memory was 14.1 MB in the beginning and 11.8 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 14.3 GB. * RCFGBuilder took 1275.75 ms. Allocated memory was 45.1 MB in the beginning and 52.4 MB in the end (delta: 7.3 MB). Free memory was 11.8 MB in the beginning and 16.8 MB in the end (delta: -5.0 MB). Peak memory consumption was 10.1 MB. Max. memory is 14.3 GB. * TraceAbstraction took 18823.57 ms. Allocated memory was 52.4 MB in the beginning and 257.4 MB in the end (delta: 205.0 MB). Free memory was 16.3 MB in the beginning and 149.2 MB in the end (delta: -132.9 MB). Peak memory consumption was 72.1 MB. Max. memory is 14.3 GB. * Witness Printer took 58.45 ms. Allocated memory is still 257.4 MB. Free memory was 149.2 MB in the beginning and 146.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 6964 VarBasedMoverChecksPositive, 159 VarBasedMoverChecksNegative, 37 SemBasedMoverChecksPositive, 122 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 1.4s, 1100 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 5.6s, 161 PlacesBefore, 64 PlacesAfterwards, 175 TransitionsBefore, 73 TransitionsAfterwards, 10120 CoEnabledTransitionPairs, 6 FixpointIterations, 32 TrivialSequentialCompositions, 77 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 5 ChoiceCompositions, 129 TotalNumberOfCompositions, 25813 MoverChecksTotal - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 152 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 18.6s, OverallIterations: 30, TraceHistogramMax: 1, AutomataDifference: 6.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.9s, HoareTripleCheckerStatistics: 2449 SDtfs, 2956 SDslu, 5713 SDs, 0 SdLazy, 4390 SolverSat, 445 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 261 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 222 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6283occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.8s AutomataMinimizationTime, 30 MinimizatonAttempts, 5148 StatesRemovedByMinimization, 25 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 674 NumberOfCodeBlocks, 674 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 644 ConstructedInterpolants, 0 QuantifiedInterpolants, 72624 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 30 InterpolantComputations, 30 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...