./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 a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_fadff1cf-70ed-432a-92eb-6b677210d487/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_fadff1cf-70ed-432a-92eb-6b677210d487/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fadff1cf-70ed-432a-92eb-6b677210d487/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fadff1cf-70ed-432a-92eb-6b677210d487/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-atomic/qrcu-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_fadff1cf-70ed-432a-92eb-6b677210d487/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fadff1cf-70ed-432a-92eb-6b677210d487/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 92de787da58164b8efa82fae19f262746d58018b ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:46:24,715 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:46:24,719 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:46:24,785 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:46:24,785 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:46:24,790 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:46:24,793 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:46:24,796 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:46:24,799 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:46:24,812 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:46:24,813 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:46:24,814 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:46:24,815 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:46:24,821 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:46:24,822 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:46:24,824 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:46:24,825 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:46:24,826 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:46:24,828 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:46:24,831 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:46:24,832 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:46:24,834 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:46:24,835 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:46:24,836 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:46:24,840 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:46:24,840 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:46:24,840 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:46:24,842 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:46:24,842 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:46:24,843 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:46:24,844 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:46:24,845 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:46:24,846 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:46:24,846 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:46:24,848 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:46:24,848 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:46:24,849 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:46:24,849 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:46:24,850 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:46:24,851 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:46:24,852 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:46:24,853 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fadff1cf-70ed-432a-92eb-6b677210d487/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 00:46:24,876 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:46:24,876 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:46:24,877 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:46:24,878 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:46:24,878 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:46:24,878 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:46:24,878 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:46:24,879 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:46:24,879 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:46:24,879 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:46:24,879 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:46:24,879 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:46:24,880 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:46:24,880 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:46:24,880 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:46:24,880 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:46:24,880 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:46:24,880 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:46:24,881 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:46:24,881 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:46:24,881 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:46:24,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:46:24,881 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:46:24,882 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:46:24,882 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:46:24,882 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:46:24,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:46:24,882 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:46:24,883 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:46:24,883 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_fadff1cf-70ed-432a-92eb-6b677210d487/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_fadff1cf-70ed-432a-92eb-6b677210d487/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 92de787da58164b8efa82fae19f262746d58018b [2020-11-30 00:46:25,129 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:46:25,152 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:46:25,155 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:46:25,156 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:46:25,157 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:46:25,158 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fadff1cf-70ed-432a-92eb-6b677210d487/bin/uautomizer/../../sv-benchmarks/c/pthread-atomic/qrcu-1.i [2020-11-30 00:46:25,242 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fadff1cf-70ed-432a-92eb-6b677210d487/bin/uautomizer/data/343185a3d/518f58d393834717a64846fbe5c3e77f/FLAG567dd0318 [2020-11-30 00:46:25,774 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:46:25,783 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fadff1cf-70ed-432a-92eb-6b677210d487/sv-benchmarks/c/pthread-atomic/qrcu-1.i [2020-11-30 00:46:25,797 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fadff1cf-70ed-432a-92eb-6b677210d487/bin/uautomizer/data/343185a3d/518f58d393834717a64846fbe5c3e77f/FLAG567dd0318 [2020-11-30 00:46:26,047 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fadff1cf-70ed-432a-92eb-6b677210d487/bin/uautomizer/data/343185a3d/518f58d393834717a64846fbe5c3e77f [2020-11-30 00:46:26,049 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:46:26,050 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:46:26,052 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:46:26,052 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:46:26,056 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:46:26,057 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:46:26" (1/1) ... [2020-11-30 00:46:26,059 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24878efb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:26, skipping insertion in model container [2020-11-30 00:46:26,060 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:46:26" (1/1) ... [2020-11-30 00:46:26,067 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:46:26,118 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:46:26,474 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:46:26,486 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:46:26,533 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:46:26,633 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:46:26,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:26 WrapperNode [2020-11-30 00:46:26,634 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:46:26,635 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:46:26,636 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:46:26,636 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:46:26,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:26" (1/1) ... [2020-11-30 00:46:26,684 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:26" (1/1) ... [2020-11-30 00:46:26,746 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:46:26,747 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:46:26,747 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:46:26,747 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:46:26,766 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:26" (1/1) ... [2020-11-30 00:46:26,766 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:26" (1/1) ... [2020-11-30 00:46:26,771 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:26" (1/1) ... [2020-11-30 00:46:26,771 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:26" (1/1) ... [2020-11-30 00:46:26,796 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:26" (1/1) ... [2020-11-30 00:46:26,801 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:26" (1/1) ... [2020-11-30 00:46:26,805 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:26" (1/1) ... [2020-11-30 00:46:26,825 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:46:26,826 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:46:26,826 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:46:26,827 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:46:26,828 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fadff1cf-70ed-432a-92eb-6b677210d487/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:46:26,940 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_reader1 [2020-11-30 00:46:26,940 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_reader1 [2020-11-30 00:46:26,940 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_reader2 [2020-11-30 00:46:26,941 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_reader2 [2020-11-30 00:46:26,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 00:46:26,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 00:46:26,942 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_updater [2020-11-30 00:46:26,943 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_updater [2020-11-30 00:46:26,943 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-11-30 00:46:26,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:46:26,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 00:46:26,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:46:26,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:46:26,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:46:26,946 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-30 00:46:28,411 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:46:28,411 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-30 00:46:28,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:46:28 BoogieIcfgContainer [2020-11-30 00:46:28,413 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:46:28,418 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:46:28,419 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:46:28,422 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:46:28,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:46:26" (1/3) ... [2020-11-30 00:46:28,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@648f3693 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:46:28, skipping insertion in model container [2020-11-30 00:46:28,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:26" (2/3) ... [2020-11-30 00:46:28,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@648f3693 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:46:28, skipping insertion in model container [2020-11-30 00:46:28,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:46:28" (3/3) ... [2020-11-30 00:46:28,426 INFO L111 eAbstractionObserver]: Analyzing ICFG qrcu-1.i [2020-11-30 00:46:28,437 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-30 00:46:28,438 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:46:28,443 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-30 00:46:28,444 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-30 00:46:28,524 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,524 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,524 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,524 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,525 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,525 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,525 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,525 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,525 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,526 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,526 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,526 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,526 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,527 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,527 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,527 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,527 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,527 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,528 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,528 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,528 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,528 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,528 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,528 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,529 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,529 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,529 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,529 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,529 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,530 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,530 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,530 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,530 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,530 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,530 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,531 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,531 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,531 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,531 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,532 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,532 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,532 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,532 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,532 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,532 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,533 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,533 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,533 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,534 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,534 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,534 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,534 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,534 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,535 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,535 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,535 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,535 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,535 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,535 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,536 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,536 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,536 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,536 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,536 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,536 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,536 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,537 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,537 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,537 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,537 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,538 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,538 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,539 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,539 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,539 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,539 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,539 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,540 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,540 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,540 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,540 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,540 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,541 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,541 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,541 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_~readerstart2.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,541 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_#in~readerstart1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,541 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_#in~readerstart1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,541 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_~readerstart1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,541 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_#in~readerstart2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,542 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_~readerstart2.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,542 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_#in~readerstart2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,542 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_~readerstart1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,542 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,542 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,543 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,543 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,543 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,543 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,543 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,544 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,544 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,544 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,544 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,544 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,544 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,545 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,545 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,545 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,545 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,545 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,546 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,546 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,546 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,546 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,546 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,546 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,547 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,547 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,547 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,547 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,547 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,547 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,548 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_~readerstart1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,548 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,548 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_#in~readerstart1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,548 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,548 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,549 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,549 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,549 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,549 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,549 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,549 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,549 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,550 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_~readerstart1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,551 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,551 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_#in~readerstart1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,551 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,551 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,552 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,552 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,552 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,552 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,552 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,552 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,553 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,553 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,553 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,553 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,553 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,553 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,554 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,554 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,554 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,554 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_~readerstart2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,554 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,554 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,554 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_#in~readerstart2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,555 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,555 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,555 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,555 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,555 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,556 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,556 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_~readerstart2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,556 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,556 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,556 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,556 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,556 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_#in~readerstart2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,557 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,557 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,557 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,557 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,557 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,558 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,558 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,558 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,558 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,558 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,559 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,559 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,559 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,559 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,559 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,559 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,560 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,560 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,562 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,562 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,562 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,563 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,563 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,563 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,563 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,563 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,563 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,564 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,564 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,564 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,564 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,564 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,565 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,565 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,565 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,565 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,565 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,567 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,568 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,568 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,568 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,568 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,568 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,569 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,569 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,569 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,569 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,569 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,569 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,570 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,570 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,570 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,570 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,570 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,570 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,571 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,573 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,573 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_#in~readerstart2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,573 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,573 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_#in~readerstart2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,573 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_#in~readerstart1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,574 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,574 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,574 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,574 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,574 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,574 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_#in~readerstart1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,575 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,575 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,575 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,575 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,575 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,575 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_~readerstart1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,576 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,576 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,576 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,576 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_~readerstart1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,576 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,576 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_~readerstart2.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,577 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_~readerstart2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,577 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,577 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_~readerstart1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,577 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,577 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,577 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,578 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,578 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_#in~readerstart1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,578 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,578 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_~readerstart2.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,578 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,578 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_#in~readerstart2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,579 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,579 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:46:28,599 INFO L149 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2020-11-30 00:46:28,609 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-11-30 00:46:28,631 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:46:28,632 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 00:46:28,632 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:46:28,632 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:46:28,632 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:46:28,632 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:46:28,632 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:46:28,632 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:46:28,654 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-30 00:46:28,658 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 161 places, 175 transitions, 392 flow [2020-11-30 00:46:28,662 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 161 places, 175 transitions, 392 flow [2020-11-30 00:46:28,664 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 161 places, 175 transitions, 392 flow [2020-11-30 00:46:28,772 INFO L129 PetriNetUnfolder]: 23/183 cut-off events. [2020-11-30 00:46:28,772 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2020-11-30 00:46:28,792 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. [2020-11-30 00:46:28,804 INFO L116 LiptonReduction]: Number of co-enabled transitions 10120 [2020-11-30 00:46:29,154 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2020-11-30 00:46:29,155 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:46:29,178 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2020-11-30 00:46:29,178 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:46:33,578 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 15, 1] term [2020-11-30 00:46:33,578 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:46:33,598 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 15, 1] term [2020-11-30 00:46:33,598 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:46:34,313 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2020-11-30 00:46:34,421 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-11-30 00:46:34,965 WARN L193 SmtUtils]: Spent 518.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 119 [2020-11-30 00:46:35,196 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-11-30 00:46:35,229 INFO L131 LiptonReduction]: Checked pairs total: 25813 [2020-11-30 00:46:35,229 INFO L133 LiptonReduction]: Total number of compositions: 129 [2020-11-30 00:46:35,237 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 64 places, 73 transitions, 188 flow [2020-11-30 00:46:35,522 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 4024 states. [2020-11-30 00:46:35,524 INFO L276 IsEmpty]: Start isEmpty. Operand 4024 states. [2020-11-30 00:46:35,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 00:46:35,554 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:46:35,555 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:46:35,555 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]=== [2020-11-30 00:46:35,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:46:35,568 INFO L82 PathProgramCache]: Analyzing trace with hash 1473389135, now seen corresponding path program 1 times [2020-11-30 00:46:35,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:46:35,577 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651701432] [2020-11-30 00:46:35,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:46:35,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:35,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:46:35,864 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651701432] [2020-11-30 00:46:35,864 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:46:35,864 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:46:35,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81704812] [2020-11-30 00:46:35,870 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:46:35,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:46:35,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:46:35,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:46:35,893 INFO L87 Difference]: Start difference. First operand 4024 states. Second operand 3 states. [2020-11-30 00:46:36,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:46:36,114 INFO L93 Difference]: Finished difference Result 5040 states and 18204 transitions. [2020-11-30 00:46:36,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:46:36,116 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-11-30 00:46:36,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:46:36,194 INFO L225 Difference]: With dead ends: 5040 [2020-11-30 00:46:36,194 INFO L226 Difference]: Without dead ends: 4288 [2020-11-30 00:46:36,195 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 [2020-11-30 00:46:36,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4288 states. [2020-11-30 00:46:36,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4288 to 3808. [2020-11-30 00:46:36,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3808 states. [2020-11-30 00:46:36,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3808 states to 3808 states and 14333 transitions. [2020-11-30 00:46:36,495 INFO L78 Accepts]: Start accepts. Automaton has 3808 states and 14333 transitions. Word has length 12 [2020-11-30 00:46:36,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:46:36,496 INFO L481 AbstractCegarLoop]: Abstraction has 3808 states and 14333 transitions. [2020-11-30 00:46:36,496 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:46:36,497 INFO L276 IsEmpty]: Start isEmpty. Operand 3808 states and 14333 transitions. [2020-11-30 00:46:36,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 00:46:36,500 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:46:36,500 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:46:36,500 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 00:46:36,501 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]=== [2020-11-30 00:46:36,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:46:36,505 INFO L82 PathProgramCache]: Analyzing trace with hash -1564352557, now seen corresponding path program 1 times [2020-11-30 00:46:36,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:46:36,506 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69654069] [2020-11-30 00:46:36,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:46:36,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:36,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:46:36,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69654069] [2020-11-30 00:46:36,650 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:46:36,650 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-30 00:46:36,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125214791] [2020-11-30 00:46:36,651 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:46:36,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:46:36,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:46:36,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:46:36,652 INFO L87 Difference]: Start difference. First operand 3808 states and 14333 transitions. Second operand 3 states. [2020-11-30 00:46:36,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:46:36,754 INFO L93 Difference]: Finished difference Result 3723 states and 14009 transitions. [2020-11-30 00:46:36,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:46:36,755 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-11-30 00:46:36,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:46:36,800 INFO L225 Difference]: With dead ends: 3723 [2020-11-30 00:46:36,800 INFO L226 Difference]: Without dead ends: 3723 [2020-11-30 00:46:36,801 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 [2020-11-30 00:46:36,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3723 states. [2020-11-30 00:46:36,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3723 to 3723. [2020-11-30 00:46:36,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3723 states. [2020-11-30 00:46:37,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3723 states to 3723 states and 14009 transitions. [2020-11-30 00:46:37,021 INFO L78 Accepts]: Start accepts. Automaton has 3723 states and 14009 transitions. Word has length 13 [2020-11-30 00:46:37,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:46:37,021 INFO L481 AbstractCegarLoop]: Abstraction has 3723 states and 14009 transitions. [2020-11-30 00:46:37,021 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:46:37,021 INFO L276 IsEmpty]: Start isEmpty. Operand 3723 states and 14009 transitions. [2020-11-30 00:46:37,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 00:46:37,024 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:46:37,024 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:46:37,024 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 00:46:37,024 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]=== [2020-11-30 00:46:37,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:46:37,035 INFO L82 PathProgramCache]: Analyzing trace with hash -1564352693, now seen corresponding path program 1 times [2020-11-30 00:46:37,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:46:37,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131315731] [2020-11-30 00:46:37,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:46:37,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:37,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:46:37,117 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131315731] [2020-11-30 00:46:37,117 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:46:37,117 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-30 00:46:37,117 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588161845] [2020-11-30 00:46:37,118 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:46:37,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:46:37,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:46:37,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:46:37,119 INFO L87 Difference]: Start difference. First operand 3723 states and 14009 transitions. Second operand 3 states. [2020-11-30 00:46:37,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:46:37,191 INFO L93 Difference]: Finished difference Result 3647 states and 13722 transitions. [2020-11-30 00:46:37,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:46:37,192 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-11-30 00:46:37,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:46:37,227 INFO L225 Difference]: With dead ends: 3647 [2020-11-30 00:46:37,227 INFO L226 Difference]: Without dead ends: 3647 [2020-11-30 00:46:37,227 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 [2020-11-30 00:46:37,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3647 states. [2020-11-30 00:46:37,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3647 to 3647. [2020-11-30 00:46:37,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3647 states. [2020-11-30 00:46:37,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3647 states to 3647 states and 13722 transitions. [2020-11-30 00:46:37,469 INFO L78 Accepts]: Start accepts. Automaton has 3647 states and 13722 transitions. Word has length 13 [2020-11-30 00:46:37,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:46:37,470 INFO L481 AbstractCegarLoop]: Abstraction has 3647 states and 13722 transitions. [2020-11-30 00:46:37,470 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:46:37,470 INFO L276 IsEmpty]: Start isEmpty. Operand 3647 states and 13722 transitions. [2020-11-30 00:46:37,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 00:46:37,475 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:46:37,475 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:46:37,475 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 00:46:37,475 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]=== [2020-11-30 00:46:37,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:46:37,477 INFO L82 PathProgramCache]: Analyzing trace with hash 814954117, now seen corresponding path program 1 times [2020-11-30 00:46:37,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:46:37,477 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810765705] [2020-11-30 00:46:37,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:46:37,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:37,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:46:37,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810765705] [2020-11-30 00:46:37,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:46:37,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 00:46:37,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135820944] [2020-11-30 00:46:37,617 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 00:46:37,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:46:37,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 00:46:37,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:46:37,619 INFO L87 Difference]: Start difference. First operand 3647 states and 13722 transitions. Second operand 6 states. [2020-11-30 00:46:38,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:46:38,038 INFO L93 Difference]: Finished difference Result 4630 states and 16788 transitions. [2020-11-30 00:46:38,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-30 00:46:38,039 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-11-30 00:46:38,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:46:38,095 INFO L225 Difference]: With dead ends: 4630 [2020-11-30 00:46:38,095 INFO L226 Difference]: Without dead ends: 4630 [2020-11-30 00:46:38,096 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 [2020-11-30 00:46:38,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4630 states. [2020-11-30 00:46:38,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4630 to 4071. [2020-11-30 00:46:38,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4071 states. [2020-11-30 00:46:38,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4071 states to 4071 states and 15061 transitions. [2020-11-30 00:46:38,258 INFO L78 Accepts]: Start accepts. Automaton has 4071 states and 15061 transitions. Word has length 17 [2020-11-30 00:46:38,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:46:38,259 INFO L481 AbstractCegarLoop]: Abstraction has 4071 states and 15061 transitions. [2020-11-30 00:46:38,259 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 00:46:38,259 INFO L276 IsEmpty]: Start isEmpty. Operand 4071 states and 15061 transitions. [2020-11-30 00:46:38,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 00:46:38,267 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:46:38,267 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:46:38,267 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 00:46:38,268 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]=== [2020-11-30 00:46:38,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:46:38,268 INFO L82 PathProgramCache]: Analyzing trace with hash 1794975697, now seen corresponding path program 2 times [2020-11-30 00:46:38,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:46:38,269 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85407651] [2020-11-30 00:46:38,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:46:38,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:38,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:46:38,441 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85407651] [2020-11-30 00:46:38,441 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:46:38,441 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 00:46:38,442 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705784387] [2020-11-30 00:46:38,442 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 00:46:38,442 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:46:38,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 00:46:38,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:46:38,443 INFO L87 Difference]: Start difference. First operand 4071 states and 15061 transitions. Second operand 6 states. [2020-11-30 00:46:38,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:46:38,692 INFO L93 Difference]: Finished difference Result 4750 states and 17368 transitions. [2020-11-30 00:46:38,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 00:46:38,693 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-11-30 00:46:38,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:46:38,718 INFO L225 Difference]: With dead ends: 4750 [2020-11-30 00:46:38,718 INFO L226 Difference]: Without dead ends: 4750 [2020-11-30 00:46:38,718 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 [2020-11-30 00:46:38,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4750 states. [2020-11-30 00:46:38,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4750 to 3951. [2020-11-30 00:46:38,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3951 states. [2020-11-30 00:46:38,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3951 states to 3951 states and 14617 transitions. [2020-11-30 00:46:38,902 INFO L78 Accepts]: Start accepts. Automaton has 3951 states and 14617 transitions. Word has length 17 [2020-11-30 00:46:38,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:46:38,903 INFO L481 AbstractCegarLoop]: Abstraction has 3951 states and 14617 transitions. [2020-11-30 00:46:38,903 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 00:46:38,903 INFO L276 IsEmpty]: Start isEmpty. Operand 3951 states and 14617 transitions. [2020-11-30 00:46:38,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 00:46:38,912 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:46:38,912 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:46:38,912 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-30 00:46:38,912 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]=== [2020-11-30 00:46:38,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:46:38,913 INFO L82 PathProgramCache]: Analyzing trace with hash 1643935327, now seen corresponding path program 3 times [2020-11-30 00:46:38,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:46:38,914 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234049303] [2020-11-30 00:46:38,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:46:38,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:39,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:46:39,026 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234049303] [2020-11-30 00:46:39,026 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:46:39,027 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:46:39,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455170123] [2020-11-30 00:46:39,027 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 00:46:39,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:46:39,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:46:39,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:46:39,028 INFO L87 Difference]: Start difference. First operand 3951 states and 14617 transitions. Second operand 5 states. [2020-11-30 00:46:39,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:46:39,240 INFO L93 Difference]: Finished difference Result 5630 states and 20329 transitions. [2020-11-30 00:46:39,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 00:46:39,240 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-11-30 00:46:39,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:46:39,265 INFO L225 Difference]: With dead ends: 5630 [2020-11-30 00:46:39,265 INFO L226 Difference]: Without dead ends: 5630 [2020-11-30 00:46:39,266 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 [2020-11-30 00:46:39,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5630 states. [2020-11-30 00:46:39,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5630 to 5591. [2020-11-30 00:46:39,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5591 states. [2020-11-30 00:46:39,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5591 states to 5591 states and 20262 transitions. [2020-11-30 00:46:39,451 INFO L78 Accepts]: Start accepts. Automaton has 5591 states and 20262 transitions. Word has length 17 [2020-11-30 00:46:39,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:46:39,451 INFO L481 AbstractCegarLoop]: Abstraction has 5591 states and 20262 transitions. [2020-11-30 00:46:39,451 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 00:46:39,451 INFO L276 IsEmpty]: Start isEmpty. Operand 5591 states and 20262 transitions. [2020-11-30 00:46:39,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 00:46:39,459 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:46:39,459 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:46:39,459 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-30 00:46:39,459 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]=== [2020-11-30 00:46:39,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:46:39,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1724789375, now seen corresponding path program 1 times [2020-11-30 00:46:39,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:46:39,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500813386] [2020-11-30 00:46:39,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:46:39,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:39,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:46:39,555 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500813386] [2020-11-30 00:46:39,556 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:46:39,556 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:46:39,556 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277998141] [2020-11-30 00:46:39,556 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:46:39,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:46:39,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:46:39,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:46:39,557 INFO L87 Difference]: Start difference. First operand 5591 states and 20262 transitions. Second operand 4 states. [2020-11-30 00:46:39,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:46:39,680 INFO L93 Difference]: Finished difference Result 7896 states and 27681 transitions. [2020-11-30 00:46:39,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 00:46:39,681 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-30 00:46:39,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:46:39,700 INFO L225 Difference]: With dead ends: 7896 [2020-11-30 00:46:39,700 INFO L226 Difference]: Without dead ends: 4404 [2020-11-30 00:46:39,701 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 [2020-11-30 00:46:39,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4404 states. [2020-11-30 00:46:39,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4404 to 4365. [2020-11-30 00:46:39,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4365 states. [2020-11-30 00:46:39,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4365 states to 4365 states and 14401 transitions. [2020-11-30 00:46:39,948 INFO L78 Accepts]: Start accepts. Automaton has 4365 states and 14401 transitions. Word has length 17 [2020-11-30 00:46:39,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:46:39,949 INFO L481 AbstractCegarLoop]: Abstraction has 4365 states and 14401 transitions. [2020-11-30 00:46:39,949 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:46:39,949 INFO L276 IsEmpty]: Start isEmpty. Operand 4365 states and 14401 transitions. [2020-11-30 00:46:39,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-30 00:46:39,953 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:46:39,953 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:46:39,953 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-30 00:46:39,953 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]=== [2020-11-30 00:46:39,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:46:39,954 INFO L82 PathProgramCache]: Analyzing trace with hash 1290451073, now seen corresponding path program 1 times [2020-11-30 00:46:39,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:46:39,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174298786] [2020-11-30 00:46:39,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:46:39,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:40,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:46:40,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174298786] [2020-11-30 00:46:40,001 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:46:40,001 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:46:40,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47126347] [2020-11-30 00:46:40,002 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:46:40,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:46:40,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:46:40,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:46:40,003 INFO L87 Difference]: Start difference. First operand 4365 states and 14401 transitions. Second operand 3 states. [2020-11-30 00:46:40,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:46:40,040 INFO L93 Difference]: Finished difference Result 4365 states and 14306 transitions. [2020-11-30 00:46:40,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:46:40,040 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-11-30 00:46:40,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:46:40,052 INFO L225 Difference]: With dead ends: 4365 [2020-11-30 00:46:40,052 INFO L226 Difference]: Without dead ends: 3056 [2020-11-30 00:46:40,052 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 [2020-11-30 00:46:40,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3056 states. [2020-11-30 00:46:40,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3056 to 2442. [2020-11-30 00:46:40,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2442 states. [2020-11-30 00:46:40,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2442 states to 2442 states and 7717 transitions. [2020-11-30 00:46:40,122 INFO L78 Accepts]: Start accepts. Automaton has 2442 states and 7717 transitions. Word has length 19 [2020-11-30 00:46:40,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:46:40,123 INFO L481 AbstractCegarLoop]: Abstraction has 2442 states and 7717 transitions. [2020-11-30 00:46:40,123 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:46:40,123 INFO L276 IsEmpty]: Start isEmpty. Operand 2442 states and 7717 transitions. [2020-11-30 00:46:40,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-30 00:46:40,126 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:46:40,126 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:46:40,126 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-30 00:46:40,127 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]=== [2020-11-30 00:46:40,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:46:40,128 INFO L82 PathProgramCache]: Analyzing trace with hash -1925760575, now seen corresponding path program 1 times [2020-11-30 00:46:40,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:46:40,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752346642] [2020-11-30 00:46:40,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:46:40,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:40,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:46:40,176 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752346642] [2020-11-30 00:46:40,176 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:46:40,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:46:40,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7342647] [2020-11-30 00:46:40,177 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:46:40,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:46:40,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:46:40,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:46:40,178 INFO L87 Difference]: Start difference. First operand 2442 states and 7717 transitions. Second operand 3 states. [2020-11-30 00:46:40,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:46:40,204 INFO L93 Difference]: Finished difference Result 2442 states and 7652 transitions. [2020-11-30 00:46:40,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:46:40,205 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-11-30 00:46:40,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:46:40,210 INFO L225 Difference]: With dead ends: 2442 [2020-11-30 00:46:40,210 INFO L226 Difference]: Without dead ends: 1241 [2020-11-30 00:46:40,211 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 [2020-11-30 00:46:40,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1241 states. [2020-11-30 00:46:40,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1241 to 1102. [2020-11-30 00:46:40,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1102 states. [2020-11-30 00:46:40,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 2963 transitions. [2020-11-30 00:46:40,242 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 2963 transitions. Word has length 19 [2020-11-30 00:46:40,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:46:40,242 INFO L481 AbstractCegarLoop]: Abstraction has 1102 states and 2963 transitions. [2020-11-30 00:46:40,242 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:46:40,242 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 2963 transitions. [2020-11-30 00:46:40,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-30 00:46:40,245 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:46:40,245 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] [2020-11-30 00:46:40,245 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-30 00:46:40,245 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]=== [2020-11-30 00:46:40,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:46:40,246 INFO L82 PathProgramCache]: Analyzing trace with hash -1194818003, now seen corresponding path program 1 times [2020-11-30 00:46:40,246 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:46:40,246 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752631293] [2020-11-30 00:46:40,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:46:40,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:40,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:46:40,316 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752631293] [2020-11-30 00:46:40,316 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:46:40,317 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:46:40,317 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077784741] [2020-11-30 00:46:40,317 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:46:40,317 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:46:40,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:46:40,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:46:40,318 INFO L87 Difference]: Start difference. First operand 1102 states and 2963 transitions. Second operand 3 states. [2020-11-30 00:46:40,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:46:40,354 INFO L93 Difference]: Finished difference Result 1375 states and 3623 transitions. [2020-11-30 00:46:40,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:46:40,354 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-11-30 00:46:40,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:46:40,358 INFO L225 Difference]: With dead ends: 1375 [2020-11-30 00:46:40,358 INFO L226 Difference]: Without dead ends: 1375 [2020-11-30 00:46:40,359 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 [2020-11-30 00:46:40,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1375 states. [2020-11-30 00:46:40,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1375 to 1140. [2020-11-30 00:46:40,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1140 states. [2020-11-30 00:46:40,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1140 states to 1140 states and 3059 transitions. [2020-11-30 00:46:40,387 INFO L78 Accepts]: Start accepts. Automaton has 1140 states and 3059 transitions. Word has length 22 [2020-11-30 00:46:40,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:46:40,387 INFO L481 AbstractCegarLoop]: Abstraction has 1140 states and 3059 transitions. [2020-11-30 00:46:40,387 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:46:40,388 INFO L276 IsEmpty]: Start isEmpty. Operand 1140 states and 3059 transitions. [2020-11-30 00:46:40,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-30 00:46:40,390 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:46:40,390 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] [2020-11-30 00:46:40,390 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-30 00:46:40,391 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]=== [2020-11-30 00:46:40,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:46:40,391 INFO L82 PathProgramCache]: Analyzing trace with hash -1194817011, now seen corresponding path program 1 times [2020-11-30 00:46:40,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:46:40,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950291363] [2020-11-30 00:46:40,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:46:40,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:40,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:46:40,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950291363] [2020-11-30 00:46:40,460 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:46:40,460 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:46:40,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188243225] [2020-11-30 00:46:40,460 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 00:46:40,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:46:40,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:46:40,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:46:40,461 INFO L87 Difference]: Start difference. First operand 1140 states and 3059 transitions. Second operand 5 states. [2020-11-30 00:46:40,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:46:40,635 INFO L93 Difference]: Finished difference Result 1377 states and 3569 transitions. [2020-11-30 00:46:40,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 00:46:40,635 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-11-30 00:46:40,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:46:40,639 INFO L225 Difference]: With dead ends: 1377 [2020-11-30 00:46:40,639 INFO L226 Difference]: Without dead ends: 1317 [2020-11-30 00:46:40,640 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 [2020-11-30 00:46:40,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1317 states. [2020-11-30 00:46:40,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1317 to 1174. [2020-11-30 00:46:40,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1174 states. [2020-11-30 00:46:40,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1174 states to 1174 states and 3138 transitions. [2020-11-30 00:46:40,669 INFO L78 Accepts]: Start accepts. Automaton has 1174 states and 3138 transitions. Word has length 22 [2020-11-30 00:46:40,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:46:40,669 INFO L481 AbstractCegarLoop]: Abstraction has 1174 states and 3138 transitions. [2020-11-30 00:46:40,669 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 00:46:40,669 INFO L276 IsEmpty]: Start isEmpty. Operand 1174 states and 3138 transitions. [2020-11-30 00:46:40,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-30 00:46:40,672 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:46:40,672 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] [2020-11-30 00:46:40,672 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-30 00:46:40,673 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]=== [2020-11-30 00:46:40,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:46:40,673 INFO L82 PathProgramCache]: Analyzing trace with hash 779557775, now seen corresponding path program 1 times [2020-11-30 00:46:40,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:46:40,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647964356] [2020-11-30 00:46:40,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:46:40,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:40,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:46:40,710 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647964356] [2020-11-30 00:46:40,710 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:46:40,710 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:46:40,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875214037] [2020-11-30 00:46:40,711 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:46:40,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:46:40,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:46:40,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:46:40,712 INFO L87 Difference]: Start difference. First operand 1174 states and 3138 transitions. Second operand 3 states. [2020-11-30 00:46:40,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:46:40,736 INFO L93 Difference]: Finished difference Result 819 states and 2041 transitions. [2020-11-30 00:46:40,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:46:40,737 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-11-30 00:46:40,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:46:40,739 INFO L225 Difference]: With dead ends: 819 [2020-11-30 00:46:40,739 INFO L226 Difference]: Without dead ends: 819 [2020-11-30 00:46:40,739 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 [2020-11-30 00:46:40,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2020-11-30 00:46:40,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 767. [2020-11-30 00:46:40,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 767 states. [2020-11-30 00:46:40,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 767 states to 767 states and 1965 transitions. [2020-11-30 00:46:40,757 INFO L78 Accepts]: Start accepts. Automaton has 767 states and 1965 transitions. Word has length 22 [2020-11-30 00:46:40,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:46:40,760 INFO L481 AbstractCegarLoop]: Abstraction has 767 states and 1965 transitions. [2020-11-30 00:46:40,760 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:46:40,760 INFO L276 IsEmpty]: Start isEmpty. Operand 767 states and 1965 transitions. [2020-11-30 00:46:40,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-30 00:46:40,765 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:46:40,765 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] [2020-11-30 00:46:40,765 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-30 00:46:40,765 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]=== [2020-11-30 00:46:40,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:46:40,766 INFO L82 PathProgramCache]: Analyzing trace with hash 743310079, now seen corresponding path program 1 times [2020-11-30 00:46:40,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:46:40,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009025874] [2020-11-30 00:46:40,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:46:40,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:40,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:46:40,894 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009025874] [2020-11-30 00:46:40,894 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:46:40,894 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-30 00:46:40,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704089017] [2020-11-30 00:46:40,894 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-30 00:46:40,895 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:46:40,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-30 00:46:40,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-30 00:46:40,895 INFO L87 Difference]: Start difference. First operand 767 states and 1965 transitions. Second operand 8 states. [2020-11-30 00:46:41,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:46:41,349 INFO L93 Difference]: Finished difference Result 920 states and 2305 transitions. [2020-11-30 00:46:41,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-30 00:46:41,349 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2020-11-30 00:46:41,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:46:41,353 INFO L225 Difference]: With dead ends: 920 [2020-11-30 00:46:41,353 INFO L226 Difference]: Without dead ends: 909 [2020-11-30 00:46:41,353 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 [2020-11-30 00:46:41,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 909 states. [2020-11-30 00:46:41,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 909 to 785. [2020-11-30 00:46:41,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 785 states. [2020-11-30 00:46:41,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 1986 transitions. [2020-11-30 00:46:41,376 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 1986 transitions. Word has length 23 [2020-11-30 00:46:41,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:46:41,376 INFO L481 AbstractCegarLoop]: Abstraction has 785 states and 1986 transitions. [2020-11-30 00:46:41,376 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-30 00:46:41,376 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 1986 transitions. [2020-11-30 00:46:41,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-30 00:46:41,379 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:46:41,380 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] [2020-11-30 00:46:41,380 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-30 00:46:41,380 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]=== [2020-11-30 00:46:41,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:46:41,381 INFO L82 PathProgramCache]: Analyzing trace with hash -1176879653, now seen corresponding path program 2 times [2020-11-30 00:46:41,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:46:41,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166643217] [2020-11-30 00:46:41,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:46:41,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:41,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:46:41,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166643217] [2020-11-30 00:46:41,549 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:46:41,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-30 00:46:41,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321366581] [2020-11-30 00:46:41,550 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-30 00:46:41,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:46:41,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-30 00:46:41,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-11-30 00:46:41,550 INFO L87 Difference]: Start difference. First operand 785 states and 1986 transitions. Second operand 9 states. [2020-11-30 00:46:42,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:46:42,117 INFO L93 Difference]: Finished difference Result 1098 states and 2758 transitions. [2020-11-30 00:46:42,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-30 00:46:42,118 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-11-30 00:46:42,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:46:42,121 INFO L225 Difference]: With dead ends: 1098 [2020-11-30 00:46:42,121 INFO L226 Difference]: Without dead ends: 1098 [2020-11-30 00:46:42,121 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 [2020-11-30 00:46:42,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2020-11-30 00:46:42,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 866. [2020-11-30 00:46:42,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 866 states. [2020-11-30 00:46:42,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 2220 transitions. [2020-11-30 00:46:42,147 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 2220 transitions. Word has length 23 [2020-11-30 00:46:42,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:46:42,147 INFO L481 AbstractCegarLoop]: Abstraction has 866 states and 2220 transitions. [2020-11-30 00:46:42,147 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-30 00:46:42,148 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 2220 transitions. [2020-11-30 00:46:42,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-30 00:46:42,150 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:46:42,150 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] [2020-11-30 00:46:42,150 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-30 00:46:42,151 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]=== [2020-11-30 00:46:42,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:46:42,151 INFO L82 PathProgramCache]: Analyzing trace with hash -191578893, now seen corresponding path program 1 times [2020-11-30 00:46:42,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:46:42,152 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079018292] [2020-11-30 00:46:42,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:46:42,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:42,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:46:42,277 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079018292] [2020-11-30 00:46:42,277 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:46:42,277 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-30 00:46:42,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686942355] [2020-11-30 00:46:42,278 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-30 00:46:42,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:46:42,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-30 00:46:42,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-11-30 00:46:42,279 INFO L87 Difference]: Start difference. First operand 866 states and 2220 transitions. Second operand 9 states. [2020-11-30 00:46:42,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:46:42,925 INFO L93 Difference]: Finished difference Result 1181 states and 2974 transitions. [2020-11-30 00:46:42,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-30 00:46:42,925 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-11-30 00:46:42,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:46:42,928 INFO L225 Difference]: With dead ends: 1181 [2020-11-30 00:46:42,928 INFO L226 Difference]: Without dead ends: 1181 [2020-11-30 00:46:42,929 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 [2020-11-30 00:46:42,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1181 states. [2020-11-30 00:46:42,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1181 to 942. [2020-11-30 00:46:42,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 942 states. [2020-11-30 00:46:42,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 2425 transitions. [2020-11-30 00:46:42,957 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 2425 transitions. Word has length 23 [2020-11-30 00:46:42,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:46:42,957 INFO L481 AbstractCegarLoop]: Abstraction has 942 states and 2425 transitions. [2020-11-30 00:46:42,958 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-30 00:46:42,958 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 2425 transitions. [2020-11-30 00:46:42,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-30 00:46:42,960 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:46:42,961 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] [2020-11-30 00:46:42,961 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-11-30 00:46:42,961 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]=== [2020-11-30 00:46:42,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:46:42,962 INFO L82 PathProgramCache]: Analyzing trace with hash -1283943529, now seen corresponding path program 2 times [2020-11-30 00:46:42,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:46:42,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510568774] [2020-11-30 00:46:42,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:46:42,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:43,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:46:43,101 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510568774] [2020-11-30 00:46:43,102 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:46:43,102 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-30 00:46:43,102 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737044291] [2020-11-30 00:46:43,102 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-30 00:46:43,102 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:46:43,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-30 00:46:43,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-11-30 00:46:43,103 INFO L87 Difference]: Start difference. First operand 942 states and 2425 transitions. Second operand 9 states. [2020-11-30 00:46:43,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:46:43,650 INFO L93 Difference]: Finished difference Result 1227 states and 3100 transitions. [2020-11-30 00:46:43,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-30 00:46:43,655 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-11-30 00:46:43,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:46:43,658 INFO L225 Difference]: With dead ends: 1227 [2020-11-30 00:46:43,658 INFO L226 Difference]: Without dead ends: 1227 [2020-11-30 00:46:43,659 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 [2020-11-30 00:46:43,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1227 states. [2020-11-30 00:46:43,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1227 to 856. [2020-11-30 00:46:43,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 856 states. [2020-11-30 00:46:43,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 856 states to 856 states and 2173 transitions. [2020-11-30 00:46:43,685 INFO L78 Accepts]: Start accepts. Automaton has 856 states and 2173 transitions. Word has length 23 [2020-11-30 00:46:43,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:46:43,686 INFO L481 AbstractCegarLoop]: Abstraction has 856 states and 2173 transitions. [2020-11-30 00:46:43,686 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-30 00:46:43,686 INFO L276 IsEmpty]: Start isEmpty. Operand 856 states and 2173 transitions. [2020-11-30 00:46:43,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-30 00:46:43,688 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:46:43,689 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] [2020-11-30 00:46:43,689 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-11-30 00:46:43,689 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]=== [2020-11-30 00:46:43,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:46:43,690 INFO L82 PathProgramCache]: Analyzing trace with hash 299417011, now seen corresponding path program 3 times [2020-11-30 00:46:43,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:46:43,690 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675736955] [2020-11-30 00:46:43,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:46:43,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:43,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:46:43,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675736955] [2020-11-30 00:46:43,797 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:46:43,797 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-30 00:46:43,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924792706] [2020-11-30 00:46:43,797 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-30 00:46:43,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:46:43,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-30 00:46:43,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-30 00:46:43,798 INFO L87 Difference]: Start difference. First operand 856 states and 2173 transitions. Second operand 8 states. [2020-11-30 00:46:44,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:46:44,172 INFO L93 Difference]: Finished difference Result 933 states and 2395 transitions. [2020-11-30 00:46:44,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-30 00:46:44,173 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2020-11-30 00:46:44,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:46:44,175 INFO L225 Difference]: With dead ends: 933 [2020-11-30 00:46:44,175 INFO L226 Difference]: Without dead ends: 933 [2020-11-30 00:46:44,176 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 [2020-11-30 00:46:44,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 933 states. [2020-11-30 00:46:44,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 933 to 807. [2020-11-30 00:46:44,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 807 states. [2020-11-30 00:46:44,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 2066 transitions. [2020-11-30 00:46:44,195 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 2066 transitions. Word has length 23 [2020-11-30 00:46:44,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:46:44,195 INFO L481 AbstractCegarLoop]: Abstraction has 807 states and 2066 transitions. [2020-11-30 00:46:44,195 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-30 00:46:44,196 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 2066 transitions. [2020-11-30 00:46:44,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-30 00:46:44,198 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:46:44,198 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] [2020-11-30 00:46:44,198 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-11-30 00:46:44,198 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]=== [2020-11-30 00:46:44,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:46:44,199 INFO L82 PathProgramCache]: Analyzing trace with hash -1651857627, now seen corresponding path program 3 times [2020-11-30 00:46:44,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:46:44,199 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247155916] [2020-11-30 00:46:44,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:46:44,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:44,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:46:44,359 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247155916] [2020-11-30 00:46:44,359 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:46:44,359 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-30 00:46:44,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106467592] [2020-11-30 00:46:44,359 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-30 00:46:44,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:46:44,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-30 00:46:44,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-11-30 00:46:44,360 INFO L87 Difference]: Start difference. First operand 807 states and 2066 transitions. Second operand 9 states. [2020-11-30 00:46:44,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:46:44,878 INFO L93 Difference]: Finished difference Result 964 states and 2463 transitions. [2020-11-30 00:46:44,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-30 00:46:44,878 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-11-30 00:46:44,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:46:44,880 INFO L225 Difference]: With dead ends: 964 [2020-11-30 00:46:44,880 INFO L226 Difference]: Without dead ends: 964 [2020-11-30 00:46:44,880 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 [2020-11-30 00:46:44,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 964 states. [2020-11-30 00:46:44,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 964 to 716. [2020-11-30 00:46:44,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 716 states. [2020-11-30 00:46:44,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 1828 transitions. [2020-11-30 00:46:44,898 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 1828 transitions. Word has length 23 [2020-11-30 00:46:44,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:46:44,898 INFO L481 AbstractCegarLoop]: Abstraction has 716 states and 1828 transitions. [2020-11-30 00:46:44,898 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-30 00:46:44,898 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 1828 transitions. [2020-11-30 00:46:44,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-30 00:46:44,901 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:46:44,901 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] [2020-11-30 00:46:44,901 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-11-30 00:46:44,902 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]=== [2020-11-30 00:46:44,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:46:44,902 INFO L82 PathProgramCache]: Analyzing trace with hash 101279203, now seen corresponding path program 1 times [2020-11-30 00:46:44,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:46:44,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115588891] [2020-11-30 00:46:44,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:46:44,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:44,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:46:44,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115588891] [2020-11-30 00:46:44,994 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:46:44,994 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-30 00:46:44,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541908242] [2020-11-30 00:46:44,995 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-30 00:46:44,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:46:44,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 00:46:44,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-30 00:46:44,996 INFO L87 Difference]: Start difference. First operand 716 states and 1828 transitions. Second operand 7 states. [2020-11-30 00:46:45,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:46:45,215 INFO L93 Difference]: Finished difference Result 788 states and 2038 transitions. [2020-11-30 00:46:45,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-30 00:46:45,216 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2020-11-30 00:46:45,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:46:45,218 INFO L225 Difference]: With dead ends: 788 [2020-11-30 00:46:45,218 INFO L226 Difference]: Without dead ends: 696 [2020-11-30 00:46:45,218 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-11-30 00:46:45,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2020-11-30 00:46:45,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 649. [2020-11-30 00:46:45,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 649 states. [2020-11-30 00:46:45,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 1665 transitions. [2020-11-30 00:46:45,233 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 1665 transitions. Word has length 28 [2020-11-30 00:46:45,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:46:45,234 INFO L481 AbstractCegarLoop]: Abstraction has 649 states and 1665 transitions. [2020-11-30 00:46:45,234 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-30 00:46:45,234 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 1665 transitions. [2020-11-30 00:46:45,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-30 00:46:45,236 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:46:45,236 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] [2020-11-30 00:46:45,236 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-11-30 00:46:45,236 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]=== [2020-11-30 00:46:45,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:46:45,237 INFO L82 PathProgramCache]: Analyzing trace with hash 1824275773, now seen corresponding path program 2 times [2020-11-30 00:46:45,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:46:45,237 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521658857] [2020-11-30 00:46:45,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:46:45,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:45,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:46:45,339 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521658857] [2020-11-30 00:46:45,339 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:46:45,339 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-30 00:46:45,339 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680650982] [2020-11-30 00:46:45,340 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-30 00:46:45,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:46:45,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 00:46:45,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-30 00:46:45,340 INFO L87 Difference]: Start difference. First operand 649 states and 1665 transitions. Second operand 7 states. [2020-11-30 00:46:45,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:46:45,553 INFO L93 Difference]: Finished difference Result 833 states and 2175 transitions. [2020-11-30 00:46:45,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-30 00:46:45,553 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2020-11-30 00:46:45,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:46:45,554 INFO L225 Difference]: With dead ends: 833 [2020-11-30 00:46:45,555 INFO L226 Difference]: Without dead ends: 698 [2020-11-30 00:46:45,555 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 [2020-11-30 00:46:45,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2020-11-30 00:46:45,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 599. [2020-11-30 00:46:45,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 599 states. [2020-11-30 00:46:45,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 1536 transitions. [2020-11-30 00:46:45,568 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 1536 transitions. Word has length 28 [2020-11-30 00:46:45,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:46:45,569 INFO L481 AbstractCegarLoop]: Abstraction has 599 states and 1536 transitions. [2020-11-30 00:46:45,569 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-30 00:46:45,569 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 1536 transitions. [2020-11-30 00:46:45,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-30 00:46:45,571 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:46:45,571 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] [2020-11-30 00:46:45,571 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-11-30 00:46:45,571 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]=== [2020-11-30 00:46:45,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:46:45,572 INFO L82 PathProgramCache]: Analyzing trace with hash -1300244385, now seen corresponding path program 1 times [2020-11-30 00:46:45,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:46:45,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48733424] [2020-11-30 00:46:45,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:46:45,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:45,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:46:45,664 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48733424] [2020-11-30 00:46:45,664 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:46:45,664 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-30 00:46:45,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680297878] [2020-11-30 00:46:45,665 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-30 00:46:45,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:46:45,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-30 00:46:45,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-11-30 00:46:45,666 INFO L87 Difference]: Start difference. First operand 599 states and 1536 transitions. Second operand 8 states. [2020-11-30 00:46:45,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:46:45,862 INFO L93 Difference]: Finished difference Result 660 states and 1752 transitions. [2020-11-30 00:46:45,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-30 00:46:45,863 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 28 [2020-11-30 00:46:45,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:46:45,864 INFO L225 Difference]: With dead ends: 660 [2020-11-30 00:46:45,865 INFO L226 Difference]: Without dead ends: 570 [2020-11-30 00:46:45,865 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 [2020-11-30 00:46:45,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2020-11-30 00:46:45,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 534. [2020-11-30 00:46:45,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 534 states. [2020-11-30 00:46:45,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 1377 transitions. [2020-11-30 00:46:45,877 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 1377 transitions. Word has length 28 [2020-11-30 00:46:45,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:46:45,878 INFO L481 AbstractCegarLoop]: Abstraction has 534 states and 1377 transitions. [2020-11-30 00:46:45,878 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-30 00:46:45,878 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 1377 transitions. [2020-11-30 00:46:45,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-30 00:46:45,879 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:46:45,879 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] [2020-11-30 00:46:45,880 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-11-30 00:46:45,880 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]=== [2020-11-30 00:46:45,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:46:45,880 INFO L82 PathProgramCache]: Analyzing trace with hash -652482683, now seen corresponding path program 2 times [2020-11-30 00:46:45,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:46:45,881 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804394162] [2020-11-30 00:46:45,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:46:45,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:45,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:46:45,974 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804394162] [2020-11-30 00:46:45,974 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:46:45,974 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-30 00:46:45,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308285421] [2020-11-30 00:46:45,974 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-30 00:46:45,974 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:46:45,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 00:46:45,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-30 00:46:45,975 INFO L87 Difference]: Start difference. First operand 534 states and 1377 transitions. Second operand 7 states. [2020-11-30 00:46:46,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:46:46,250 INFO L93 Difference]: Finished difference Result 729 states and 1958 transitions. [2020-11-30 00:46:46,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-30 00:46:46,250 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2020-11-30 00:46:46,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:46:46,252 INFO L225 Difference]: With dead ends: 729 [2020-11-30 00:46:46,252 INFO L226 Difference]: Without dead ends: 518 [2020-11-30 00:46:46,252 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 [2020-11-30 00:46:46,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2020-11-30 00:46:46,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 444. [2020-11-30 00:46:46,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 444 states. [2020-11-30 00:46:46,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 1119 transitions. [2020-11-30 00:46:46,262 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 1119 transitions. Word has length 28 [2020-11-30 00:46:46,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:46:46,262 INFO L481 AbstractCegarLoop]: Abstraction has 444 states and 1119 transitions. [2020-11-30 00:46:46,262 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-30 00:46:46,262 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 1119 transitions. [2020-11-30 00:46:46,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-30 00:46:46,264 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:46:46,264 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] [2020-11-30 00:46:46,264 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-11-30 00:46:46,265 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]=== [2020-11-30 00:46:46,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:46:46,265 INFO L82 PathProgramCache]: Analyzing trace with hash 429779961, now seen corresponding path program 3 times [2020-11-30 00:46:46,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:46:46,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407087789] [2020-11-30 00:46:46,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:46:46,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:46,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:46:46,298 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407087789] [2020-11-30 00:46:46,298 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:46:46,298 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:46:46,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120029577] [2020-11-30 00:46:46,298 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:46:46,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:46:46,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:46:46,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:46:46,299 INFO L87 Difference]: Start difference. First operand 444 states and 1119 transitions. Second operand 4 states. [2020-11-30 00:46:46,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:46:46,369 INFO L93 Difference]: Finished difference Result 538 states and 1321 transitions. [2020-11-30 00:46:46,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:46:46,369 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2020-11-30 00:46:46,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:46:46,370 INFO L225 Difference]: With dead ends: 538 [2020-11-30 00:46:46,370 INFO L226 Difference]: Without dead ends: 530 [2020-11-30 00:46:46,371 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 [2020-11-30 00:46:46,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2020-11-30 00:46:46,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 444. [2020-11-30 00:46:46,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 444 states. [2020-11-30 00:46:46,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 1111 transitions. [2020-11-30 00:46:46,381 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 1111 transitions. Word has length 28 [2020-11-30 00:46:46,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:46:46,381 INFO L481 AbstractCegarLoop]: Abstraction has 444 states and 1111 transitions. [2020-11-30 00:46:46,381 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:46:46,381 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 1111 transitions. [2020-11-30 00:46:46,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-30 00:46:46,382 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:46:46,383 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] [2020-11-30 00:46:46,383 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-11-30 00:46:46,383 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]=== [2020-11-30 00:46:46,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:46:46,383 INFO L82 PathProgramCache]: Analyzing trace with hash 235847577, now seen corresponding path program 1 times [2020-11-30 00:46:46,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:46:46,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657334118] [2020-11-30 00:46:46,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:46:46,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:46,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:46:46,445 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657334118] [2020-11-30 00:46:46,445 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:46:46,445 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-30 00:46:46,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157126673] [2020-11-30 00:46:46,445 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 00:46:46,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:46:46,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 00:46:46,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:46:46,446 INFO L87 Difference]: Start difference. First operand 444 states and 1111 transitions. Second operand 6 states. [2020-11-30 00:46:46,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:46:46,630 INFO L93 Difference]: Finished difference Result 558 states and 1391 transitions. [2020-11-30 00:46:46,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-30 00:46:46,631 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2020-11-30 00:46:46,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:46:46,631 INFO L225 Difference]: With dead ends: 558 [2020-11-30 00:46:46,632 INFO L226 Difference]: Without dead ends: 474 [2020-11-30 00:46:46,632 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 [2020-11-30 00:46:46,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2020-11-30 00:46:46,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 428. [2020-11-30 00:46:46,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 428 states. [2020-11-30 00:46:46,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 1059 transitions. [2020-11-30 00:46:46,641 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 1059 transitions. Word has length 28 [2020-11-30 00:46:46,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:46:46,641 INFO L481 AbstractCegarLoop]: Abstraction has 428 states and 1059 transitions. [2020-11-30 00:46:46,641 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 00:46:46,642 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 1059 transitions. [2020-11-30 00:46:46,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-30 00:46:46,643 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:46:46,643 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] [2020-11-30 00:46:46,643 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-11-30 00:46:46,643 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]=== [2020-11-30 00:46:46,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:46:46,644 INFO L82 PathProgramCache]: Analyzing trace with hash 2041657235, now seen corresponding path program 4 times [2020-11-30 00:46:46,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:46:46,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442522664] [2020-11-30 00:46:46,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:46:46,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:46,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:46:46,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442522664] [2020-11-30 00:46:46,727 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:46:46,727 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-30 00:46:46,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036818350] [2020-11-30 00:46:46,728 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-30 00:46:46,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:46:46,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 00:46:46,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-30 00:46:46,728 INFO L87 Difference]: Start difference. First operand 428 states and 1059 transitions. Second operand 7 states. [2020-11-30 00:46:46,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:46:46,900 INFO L93 Difference]: Finished difference Result 505 states and 1221 transitions. [2020-11-30 00:46:46,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-30 00:46:46,900 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2020-11-30 00:46:46,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:46:46,901 INFO L225 Difference]: With dead ends: 505 [2020-11-30 00:46:46,901 INFO L226 Difference]: Without dead ends: 400 [2020-11-30 00:46:46,901 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 [2020-11-30 00:46:46,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2020-11-30 00:46:46,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 400. [2020-11-30 00:46:46,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 400 states. [2020-11-30 00:46:46,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 952 transitions. [2020-11-30 00:46:46,907 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 952 transitions. Word has length 28 [2020-11-30 00:46:46,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:46:46,907 INFO L481 AbstractCegarLoop]: Abstraction has 400 states and 952 transitions. [2020-11-30 00:46:46,907 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-30 00:46:46,907 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 952 transitions. [2020-11-30 00:46:46,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-30 00:46:46,908 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:46:46,908 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] [2020-11-30 00:46:46,908 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-11-30 00:46:46,909 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]=== [2020-11-30 00:46:46,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:46:46,909 INFO L82 PathProgramCache]: Analyzing trace with hash -2072091323, now seen corresponding path program 5 times [2020-11-30 00:46:46,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:46:46,909 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040314968] [2020-11-30 00:46:46,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:46:46,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:46,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:46:46,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040314968] [2020-11-30 00:46:46,993 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:46:46,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-30 00:46:46,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845239958] [2020-11-30 00:46:46,993 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-30 00:46:46,994 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:46:46,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 00:46:46,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-30 00:46:46,994 INFO L87 Difference]: Start difference. First operand 400 states and 952 transitions. Second operand 7 states. [2020-11-30 00:46:47,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:46:47,183 INFO L93 Difference]: Finished difference Result 376 states and 906 transitions. [2020-11-30 00:46:47,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-30 00:46:47,183 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2020-11-30 00:46:47,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:46:47,183 INFO L225 Difference]: With dead ends: 376 [2020-11-30 00:46:47,184 INFO L226 Difference]: Without dead ends: 235 [2020-11-30 00:46:47,184 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 [2020-11-30 00:46:47,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2020-11-30 00:46:47,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 223. [2020-11-30 00:46:47,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2020-11-30 00:46:47,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 544 transitions. [2020-11-30 00:46:47,187 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 544 transitions. Word has length 28 [2020-11-30 00:46:47,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:46:47,187 INFO L481 AbstractCegarLoop]: Abstraction has 223 states and 544 transitions. [2020-11-30 00:46:47,187 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-30 00:46:47,187 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 544 transitions. [2020-11-30 00:46:47,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-30 00:46:47,188 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:46:47,188 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] [2020-11-30 00:46:47,188 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-11-30 00:46:47,188 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]=== [2020-11-30 00:46:47,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:46:47,189 INFO L82 PathProgramCache]: Analyzing trace with hash 126447145, now seen corresponding path program 3 times [2020-11-30 00:46:47,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:46:47,189 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842624550] [2020-11-30 00:46:47,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:46:47,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:47,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:46:47,281 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842624550] [2020-11-30 00:46:47,281 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:46:47,282 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-30 00:46:47,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55879100] [2020-11-30 00:46:47,282 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-30 00:46:47,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:46:47,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 00:46:47,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-30 00:46:47,283 INFO L87 Difference]: Start difference. First operand 223 states and 544 transitions. Second operand 7 states. [2020-11-30 00:46:47,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:46:47,473 INFO L93 Difference]: Finished difference Result 289 states and 702 transitions. [2020-11-30 00:46:47,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-30 00:46:47,473 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2020-11-30 00:46:47,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:46:47,474 INFO L225 Difference]: With dead ends: 289 [2020-11-30 00:46:47,474 INFO L226 Difference]: Without dead ends: 216 [2020-11-30 00:46:47,474 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-11-30 00:46:47,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2020-11-30 00:46:47,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 168. [2020-11-30 00:46:47,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2020-11-30 00:46:47,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 400 transitions. [2020-11-30 00:46:47,477 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 400 transitions. Word has length 28 [2020-11-30 00:46:47,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:46:47,477 INFO L481 AbstractCegarLoop]: Abstraction has 168 states and 400 transitions. [2020-11-30 00:46:47,477 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-30 00:46:47,477 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 400 transitions. [2020-11-30 00:46:47,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-30 00:46:47,478 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:46:47,478 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] [2020-11-30 00:46:47,478 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-11-30 00:46:47,478 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]=== [2020-11-30 00:46:47,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:46:47,478 INFO L82 PathProgramCache]: Analyzing trace with hash -1832373091, now seen corresponding path program 4 times [2020-11-30 00:46:47,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:46:47,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842671263] [2020-11-30 00:46:47,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:46:47,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:47,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:46:47,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842671263] [2020-11-30 00:46:47,594 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:46:47,594 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-30 00:46:47,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038000274] [2020-11-30 00:46:47,595 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-30 00:46:47,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:46:47,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-30 00:46:47,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-11-30 00:46:47,596 INFO L87 Difference]: Start difference. First operand 168 states and 400 transitions. Second operand 8 states. [2020-11-30 00:46:47,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:46:47,728 INFO L93 Difference]: Finished difference Result 150 states and 385 transitions. [2020-11-30 00:46:47,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-30 00:46:47,729 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 28 [2020-11-30 00:46:47,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:46:47,729 INFO L225 Difference]: With dead ends: 150 [2020-11-30 00:46:47,729 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 00:46:47,729 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-11-30 00:46:47,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 00:46:47,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 00:46:47,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 00:46:47,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 00:46:47,730 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2020-11-30 00:46:47,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:46:47,730 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:46:47,730 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-30 00:46:47,730 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 00:46:47,730 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 00:46:47,730 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-11-30 00:46:47,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:46:47 BasicIcfg [2020-11-30 00:46:47,733 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:46:47,734 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:46:47,734 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:46:47,734 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:46:47,735 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:46:28" (3/4) ... [2020-11-30 00:46:47,739 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 00:46:47,744 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure qrcu_reader1 [2020-11-30 00:46:47,744 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure qrcu_reader2 [2020-11-30 00:46:47,745 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure qrcu_updater [2020-11-30 00:46:47,749 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-11-30 00:46:47,749 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-30 00:46:47,749 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:46:47,749 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:46:47,779 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_fadff1cf-70ed-432a-92eb-6b677210d487/bin/uautomizer/witness.graphml [2020-11-30 00:46:47,780 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:46:47,781 INFO L168 Benchmark]: Toolchain (without parser) took 21730.08 ms. Allocated memory was 96.5 MB in the beginning and 704.6 MB in the end (delta: 608.2 MB). Free memory was 65.7 MB in the beginning and 528.1 MB in the end (delta: -462.4 MB). Peak memory consumption was 145.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:46:47,781 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 77.6 MB. Free memory was 38.9 MB in the beginning and 38.9 MB in the end (delta: 39.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:46:47,782 INFO L168 Benchmark]: CACSL2BoogieTranslator took 582.46 ms. Allocated memory is still 96.5 MB. Free memory was 65.5 MB in the beginning and 52.0 MB in the end (delta: 13.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:46:47,782 INFO L168 Benchmark]: Boogie Procedure Inliner took 110.67 ms. Allocated memory is still 96.5 MB. Free memory was 52.0 MB in the beginning and 49.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:46:47,782 INFO L168 Benchmark]: Boogie Preprocessor took 78.95 ms. Allocated memory is still 96.5 MB. Free memory was 49.1 MB in the beginning and 47.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:46:47,783 INFO L168 Benchmark]: RCFGBuilder took 1587.10 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 47.0 MB in the beginning and 58.5 MB in the end (delta: -11.4 MB). Peak memory consumption was 10.3 MB. Max. memory is 16.1 GB. [2020-11-30 00:46:47,783 INFO L168 Benchmark]: TraceAbstraction took 19315.53 ms. Allocated memory was 117.4 MB in the beginning and 704.6 MB in the end (delta: 587.2 MB). Free memory was 57.8 MB in the beginning and 530.3 MB in the end (delta: -472.5 MB). Peak memory consumption was 114.3 MB. Max. memory is 16.1 GB. [2020-11-30 00:46:47,784 INFO L168 Benchmark]: Witness Printer took 45.92 ms. Allocated memory is still 704.6 MB. Free memory was 530.3 MB in the beginning and 528.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:46:47,786 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 77.6 MB. Free memory was 38.9 MB in the beginning and 38.9 MB in the end (delta: 39.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 582.46 ms. Allocated memory is still 96.5 MB. Free memory was 65.5 MB in the beginning and 52.0 MB in the end (delta: 13.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 110.67 ms. Allocated memory is still 96.5 MB. Free memory was 52.0 MB in the beginning and 49.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 78.95 ms. Allocated memory is still 96.5 MB. Free memory was 49.1 MB in the beginning and 47.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1587.10 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 47.0 MB in the beginning and 58.5 MB in the end (delta: -11.4 MB). Peak memory consumption was 10.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 19315.53 ms. Allocated memory was 117.4 MB in the beginning and 704.6 MB in the end (delta: 587.2 MB). Free memory was 57.8 MB in the beginning and 530.3 MB in the end (delta: -472.5 MB). Peak memory consumption was 114.3 MB. Max. memory is 16.1 GB. * Witness Printer took 45.92 ms. Allocated memory is still 704.6 MB. Free memory was 530.3 MB in the beginning and 528.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 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: 1.8s, 1100 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 6.5s, 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: 19.1s, OverallIterations: 28, TraceHistogramMax: 1, AutomataDifference: 7.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.8s, HoareTripleCheckerStatistics: 2240 SDtfs, 2762 SDslu, 4985 SDs, 0 SdLazy, 3883 SolverSat, 418 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 240 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 202 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5591occurred 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: 1.9s AutomataMinimizationTime, 28 MinimizatonAttempts, 4887 StatesRemovedByMinimization, 24 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 628 NumberOfCodeBlocks, 628 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 600 ConstructedInterpolants, 0 QuantifiedInterpolants, 66040 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 28 InterpolantComputations, 28 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...