./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/stack-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread/stack-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7 --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 GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 222125c717d992fdf8da41f61f0a35e98727dda6 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-16 01:24:14,694 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 01:24:14,696 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 01:24:14,740 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 01:24:14,741 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 01:24:14,742 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 01:24:14,744 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 01:24:14,746 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 01:24:14,749 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 01:24:14,750 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 01:24:14,751 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 01:24:14,752 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 01:24:14,753 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 01:24:14,754 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 01:24:14,766 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 01:24:14,768 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 01:24:14,769 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 01:24:14,770 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 01:24:14,772 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 01:24:14,775 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 01:24:14,777 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 01:24:14,779 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 01:24:14,780 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 01:24:14,781 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 01:24:14,785 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 01:24:14,786 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 01:24:14,786 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 01:24:14,787 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 01:24:14,788 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 01:24:14,789 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 01:24:14,797 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 01:24:14,798 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 01:24:14,800 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 01:24:14,801 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 01:24:14,803 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 01:24:14,804 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 01:24:14,804 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 01:24:14,805 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 01:24:14,805 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 01:24:14,806 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 01:24:14,807 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 01:24:14,808 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/config/svcomp-Reach-32bit-GemCutter_Default.epf [2021-10-16 01:24:14,856 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 01:24:14,857 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 01:24:14,860 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-16 01:24:14,860 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-16 01:24:14,863 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-16 01:24:14,863 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-16 01:24:14,864 INFO L138 SettingsManager]: * Use SBE=true [2021-10-16 01:24:14,864 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 01:24:14,864 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 01:24:14,864 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 01:24:14,864 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 01:24:14,865 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 01:24:14,865 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 01:24:14,865 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 01:24:14,865 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 01:24:14,866 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 01:24:14,866 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 01:24:14,866 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 01:24:14,866 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 01:24:14,866 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 01:24:14,867 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 01:24:14,867 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-16 01:24:14,867 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 01:24:14,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 01:24:14,868 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 01:24:14,868 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 01:24:14,868 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 01:24:14,868 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-16 01:24:14,869 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 01:24:14,869 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-16 01:24:14,869 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-10-16 01:24:14,869 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 01:24:14,869 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-10-16 01:24:14,870 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-10-16 01:24:14,870 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_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 222125c717d992fdf8da41f61f0a35e98727dda6 [2021-10-16 01:24:15,103 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 01:24:15,124 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 01:24:15,126 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 01:24:15,128 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 01:24:15,128 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 01:24:15,129 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/../../sv-benchmarks/c/pthread/stack-2.i [2021-10-16 01:24:15,188 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/data/0ea0c9039/b4774f28c02045ce9399fd87feac72b9/FLAG8cbb9e6c6 [2021-10-16 01:24:15,748 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 01:24:15,748 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/sv-benchmarks/c/pthread/stack-2.i [2021-10-16 01:24:15,777 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/data/0ea0c9039/b4774f28c02045ce9399fd87feac72b9/FLAG8cbb9e6c6 [2021-10-16 01:24:16,043 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/data/0ea0c9039/b4774f28c02045ce9399fd87feac72b9 [2021-10-16 01:24:16,046 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 01:24:16,048 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 01:24:16,050 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 01:24:16,050 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 01:24:16,054 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 01:24:16,055 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:24:16" (1/1) ... [2021-10-16 01:24:16,056 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f42ffab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:24:16, skipping insertion in model container [2021-10-16 01:24:16,056 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:24:16" (1/1) ... [2021-10-16 01:24:16,064 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 01:24:16,120 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 01:24:16,784 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/sv-benchmarks/c/pthread/stack-2.i[41520,41533] [2021-10-16 01:24:16,836 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 01:24:16,852 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 01:24:16,897 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/sv-benchmarks/c/pthread/stack-2.i[41520,41533] [2021-10-16 01:24:16,928 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 01:24:16,992 INFO L208 MainTranslator]: Completed translation [2021-10-16 01:24:16,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:24:16 WrapperNode [2021-10-16 01:24:16,993 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 01:24:16,994 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 01:24:16,994 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 01:24:16,994 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 01:24:17,002 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:24:16" (1/1) ... [2021-10-16 01:24:17,022 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:24:16" (1/1) ... [2021-10-16 01:24:17,052 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 01:24:17,053 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 01:24:17,053 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 01:24:17,053 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 01:24:17,066 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:24:16" (1/1) ... [2021-10-16 01:24:17,067 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:24:16" (1/1) ... [2021-10-16 01:24:17,084 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:24:16" (1/1) ... [2021-10-16 01:24:17,088 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:24:16" (1/1) ... [2021-10-16 01:24:17,096 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:24:16" (1/1) ... [2021-10-16 01:24:17,111 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:24:16" (1/1) ... [2021-10-16 01:24:17,113 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:24:16" (1/1) ... [2021-10-16 01:24:17,127 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 01:24:17,134 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 01:24:17,134 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 01:24:17,135 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 01:24:17,136 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:24:16" (1/1) ... [2021-10-16 01:24:17,146 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 01:24:17,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 [2021-10-16 01:24:17,176 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 01:24:17,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 01:24:17,215 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2021-10-16 01:24:17,215 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2021-10-16 01:24:17,215 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2021-10-16 01:24:17,216 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2021-10-16 01:24:17,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 01:24:17,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 01:24:17,216 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-16 01:24:17,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-16 01:24:17,216 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-10-16 01:24:17,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 01:24:17,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 01:24:17,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 01:24:17,218 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-16 01:24:17,628 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 01:24:17,628 INFO L299 CfgBuilder]: Removed 26 assume(true) statements. [2021-10-16 01:24:17,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:24:17 BoogieIcfgContainer [2021-10-16 01:24:17,630 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 01:24:17,632 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 01:24:17,633 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 01:24:17,636 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 01:24:17,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:24:16" (1/3) ... [2021-10-16 01:24:17,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4555b6fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:24:17, skipping insertion in model container [2021-10-16 01:24:17,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:24:16" (2/3) ... [2021-10-16 01:24:17,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4555b6fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:24:17, skipping insertion in model container [2021-10-16 01:24:17,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:24:17" (3/3) ... [2021-10-16 01:24:17,639 INFO L111 eAbstractionObserver]: Analyzing ICFG stack-2.i [2021-10-16 01:24:17,644 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-16 01:24:17,645 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 01:24:17,645 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-16 01:24:17,645 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-16 01:24:17,700 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,700 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,701 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,701 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,701 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,701 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,701 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,701 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,702 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,702 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,702 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,702 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,703 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,703 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,703 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,703 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,703 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,704 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,704 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,704 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,704 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,705 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,705 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,705 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,706 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,706 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,706 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,706 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,707 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,707 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,707 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,707 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,707 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,708 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,708 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,708 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,708 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,709 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,709 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,709 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,709 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,709 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,710 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,710 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,710 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,710 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,711 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,711 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,711 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,711 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,711 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,712 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,712 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,712 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,712 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,713 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,713 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,713 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,713 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,713 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,714 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,714 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,714 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,714 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,714 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,714 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,715 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,715 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,715 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,715 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,715 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,716 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,716 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,716 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,716 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,716 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,717 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,717 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,717 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,718 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,718 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,718 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,718 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,718 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,719 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,719 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,719 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,719 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,720 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,720 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,720 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,720 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,720 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,721 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,721 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,721 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,721 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,722 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,722 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,722 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,722 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,723 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,723 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,723 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,723 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,723 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,724 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,724 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,724 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,724 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,725 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,725 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,725 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,725 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,725 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,726 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,726 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,726 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,727 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,727 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,727 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,727 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,728 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,728 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,728 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,728 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,728 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,729 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,729 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,729 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,729 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,730 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,730 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,730 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,730 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,730 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,732 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,732 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,732 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,732 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,732 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,733 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,733 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,733 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,733 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,734 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,734 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,734 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,734 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,734 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,735 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,735 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,735 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,735 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,736 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,736 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,738 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,738 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,738 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,739 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,739 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,739 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,739 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,740 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,740 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,740 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,740 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,740 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,741 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,741 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,741 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,741 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,741 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,741 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,741 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,741 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,742 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,742 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,742 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,742 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,742 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,742 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,742 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,743 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,743 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,743 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,743 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,743 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,744 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,744 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,744 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,744 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,744 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,745 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,745 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,745 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,745 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,745 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,746 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,746 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,746 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,746 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,746 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,746 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,747 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,747 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,747 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,747 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,748 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,748 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,748 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,748 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,748 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,749 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,749 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,749 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,749 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,749 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,750 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,750 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,750 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,750 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,750 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,751 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,751 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,751 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,751 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,751 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,752 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,752 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,752 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,752 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,752 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,753 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,753 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,777 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,777 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,777 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,778 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,778 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,778 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,778 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,778 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,778 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,779 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,779 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,779 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,779 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,779 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,780 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,780 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,780 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,780 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,780 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,780 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,781 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,781 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,781 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,781 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,781 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,782 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,782 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,782 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,782 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,782 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,783 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,786 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,786 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,786 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,786 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,787 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,787 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,787 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,787 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,787 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,788 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,788 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,788 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,788 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,788 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,788 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,789 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,789 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,789 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,789 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,789 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,789 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,790 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,790 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,795 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,795 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,795 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,796 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,796 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,796 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,796 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,796 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,796 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,797 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,797 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,797 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,797 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,797 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,798 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,798 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,798 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,798 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,798 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 01:24:17,805 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-16 01:24:17,866 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-16 01:24:17,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 [2021-10-16 01:24:17,868 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-10-16 01:24:17,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-10-16 01:24:17,907 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t1Thread1of1ForFork0 ======== [2021-10-16 01:24:17,914 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 01:24:17,914 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 01:24:18,099 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:24:18,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:24:18,109 INFO L82 PathProgramCache]: Analyzing trace with hash -1965081410, now seen corresponding path program 1 times [2021-10-16 01:24:18,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 01:24:18,119 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709629877] [2021-10-16 01:24:18,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:24:18,120 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:24:18,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:24:18,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:24:18,393 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 01:24:18,393 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709629877] [2021-10-16 01:24:18,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709629877] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 01:24:18,394 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 01:24:18,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 01:24:18,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935719242] [2021-10-16 01:24:18,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-16 01:24:18,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 01:24:18,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-16 01:24:18,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 01:24:18,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:18,420 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 01:24:18,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:24:18,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:18,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:18,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 01:24:18,464 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:24:18,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:24:18,469 INFO L82 PathProgramCache]: Analyzing trace with hash 151175322, now seen corresponding path program 1 times [2021-10-16 01:24:18,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 01:24:18,469 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740647840] [2021-10-16 01:24:18,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:24:18,470 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:24:18,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:24:18,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:24:18,706 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 01:24:18,706 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740647840] [2021-10-16 01:24:18,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740647840] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 01:24:18,706 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 01:24:18,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 01:24:18,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585607511] [2021-10-16 01:24:18,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 01:24:18,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 01:24:18,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 01:24:18,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:24:18,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:18,710 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 01:24:18,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:24:18,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:18,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:18,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:18,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:18,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 01:24:18,768 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:24:18,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:24:18,769 INFO L82 PathProgramCache]: Analyzing trace with hash 432935090, now seen corresponding path program 1 times [2021-10-16 01:24:18,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 01:24:18,770 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512531636] [2021-10-16 01:24:18,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:24:18,771 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:24:18,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:24:18,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:24:18,932 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 01:24:18,932 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512531636] [2021-10-16 01:24:18,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512531636] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 01:24:18,933 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 01:24:18,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-16 01:24:18,933 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689186816] [2021-10-16 01:24:18,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 01:24:18,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 01:24:18,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 01:24:18,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-16 01:24:18,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:18,936 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 01:24:18,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:24:18,936 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:18,936 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:18,937 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:19,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:19,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:19,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 01:24:19,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-16 01:24:19,010 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:24:19,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:24:19,011 INFO L82 PathProgramCache]: Analyzing trace with hash 1687086282, now seen corresponding path program 1 times [2021-10-16 01:24:19,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 01:24:19,012 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732107428] [2021-10-16 01:24:19,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:24:19,012 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:24:19,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:24:19,168 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:24:19,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 01:24:19,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732107428] [2021-10-16 01:24:19,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732107428] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:24:19,170 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440503607] [2021-10-16 01:24:19,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:24:19,170 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:24:19,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 [2021-10-16 01:24:19,172 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 01:24:19,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-16 01:24:19,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:24:19,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-16 01:24:19,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:24:19,902 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:24:19,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [440503607] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:24:19,903 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-16 01:24:19,903 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-10-16 01:24:19,903 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695092335] [2021-10-16 01:24:19,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-16 01:24:19,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 01:24:19,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-16 01:24:19,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-16 01:24:19,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:19,906 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 01:24:19,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 7 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:24:19,907 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:19,907 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:19,907 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-16 01:24:19,907 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:19,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:19,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:19,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 01:24:19,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:20,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-16 01:24:20,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:24:20,207 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:24:20,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:24:20,207 INFO L82 PathProgramCache]: Analyzing trace with hash -1387605350, now seen corresponding path program 2 times [2021-10-16 01:24:20,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 01:24:20,208 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888714409] [2021-10-16 01:24:20,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:24:20,208 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:24:20,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:24:20,438 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 6 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:24:20,439 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 01:24:20,439 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888714409] [2021-10-16 01:24:20,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888714409] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:24:20,440 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1981014436] [2021-10-16 01:24:20,440 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-16 01:24:20,440 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:24:20,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 [2021-10-16 01:24:20,443 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 01:24:20,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-16 01:24:20,605 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-16 01:24:20,605 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 01:24:20,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-16 01:24:20,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:24:21,054 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 6 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:24:21,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1981014436] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:24:21,054 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-16 01:24:21,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-10-16 01:24:21,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498915510] [2021-10-16 01:24:21,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-16 01:24:21,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 01:24:21,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-16 01:24:21,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-10-16 01:24:21,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:21,063 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 01:24:21,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 19.88888888888889) internal successors, (179), 9 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:24:21,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:21,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:21,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-16 01:24:21,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:21,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:21,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:21,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:21,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 01:24:21,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:21,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:24:21,217 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-10-16 01:24:21,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:24:21,407 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:24:21,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:24:21,407 INFO L82 PathProgramCache]: Analyzing trace with hash -1925344566, now seen corresponding path program 3 times [2021-10-16 01:24:21,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 01:24:21,407 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797075067] [2021-10-16 01:24:21,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:24:21,408 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:24:21,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:24:21,586 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 9 proven. 150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:24:21,590 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 01:24:21,590 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797075067] [2021-10-16 01:24:21,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797075067] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:24:21,592 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [123980694] [2021-10-16 01:24:21,595 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-16 01:24:21,596 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:24:21,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 [2021-10-16 01:24:21,597 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 01:24:21,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-16 01:24:21,848 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-10-16 01:24:21,848 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 01:24:21,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-16 01:24:21,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:24:22,466 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 9 proven. 150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:24:22,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [123980694] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:24:22,466 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-16 01:24:22,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2021-10-16 01:24:22,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46158202] [2021-10-16 01:24:22,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-16 01:24:22,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 01:24:22,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-16 01:24:22,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-10-16 01:24:22,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:22,469 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 01:24:22,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 19.454545454545453) internal successors, (214), 11 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:24:22,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:22,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:22,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-16 01:24:22,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:22,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:24:22,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:22,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:22,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:22,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 01:24:22,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:22,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:24:22,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:24:22,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-16 01:24:22,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-10-16 01:24:22,798 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:24:22,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:24:22,798 INFO L82 PathProgramCache]: Analyzing trace with hash -835885926, now seen corresponding path program 4 times [2021-10-16 01:24:22,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 01:24:22,798 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796119244] [2021-10-16 01:24:22,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:24:22,799 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:24:22,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:24:23,018 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 12 proven. 270 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:24:23,019 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 01:24:23,019 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796119244] [2021-10-16 01:24:23,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796119244] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:24:23,020 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [519375480] [2021-10-16 01:24:23,020 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-16 01:24:23,020 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:24:23,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 [2021-10-16 01:24:23,021 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 01:24:23,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-16 01:24:23,278 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-16 01:24:23,278 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 01:24:23,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-16 01:24:23,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:24:23,806 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 12 proven. 270 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:24:23,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [519375480] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:24:23,807 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-16 01:24:23,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 13 [2021-10-16 01:24:23,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950935339] [2021-10-16 01:24:23,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-16 01:24:23,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 01:24:23,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-16 01:24:23,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-10-16 01:24:23,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:23,810 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 01:24:23,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 19.153846153846153) internal successors, (249), 13 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:24:23,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:23,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:23,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-16 01:24:23,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:23,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:24:23,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:24:23,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:23,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:23,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:23,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 01:24:23,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:23,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:24:23,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:24:23,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:24:23,993 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-10-16 01:24:24,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:24:24,179 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:24:24,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:24:24,179 INFO L82 PathProgramCache]: Analyzing trace with hash 1061273802, now seen corresponding path program 5 times [2021-10-16 01:24:24,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 01:24:24,179 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481497356] [2021-10-16 01:24:24,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:24:24,180 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:24:24,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:24:24,438 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 303 proven. 137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:24:24,439 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 01:24:24,439 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481497356] [2021-10-16 01:24:24,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481497356] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:24:24,440 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1233703128] [2021-10-16 01:24:24,440 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-16 01:24:24,440 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:24:24,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 [2021-10-16 01:24:24,443 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 01:24:24,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-16 01:24:24,900 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-10-16 01:24:24,900 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 01:24:24,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-16 01:24:24,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:24:25,617 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 440 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:24:25,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1233703128] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 01:24:25,619 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-16 01:24:25,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [13] total 15 [2021-10-16 01:24:25,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406479192] [2021-10-16 01:24:25,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-16 01:24:25,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 01:24:25,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-16 01:24:25,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2021-10-16 01:24:25,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:25,623 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 01:24:25,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 17.923076923076923) internal successors, (233), 13 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:24:25,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:25,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:25,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-16 01:24:25,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:25,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:24:25,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:24:25,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:24:25,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:26,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:26,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:26,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 01:24:26,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:26,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:24:26,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:24:26,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:24:26,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-16 01:24:26,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-16 01:24:26,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:24:26,707 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:24:26,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:24:26,707 INFO L82 PathProgramCache]: Analyzing trace with hash -834557659, now seen corresponding path program 1 times [2021-10-16 01:24:26,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 01:24:26,707 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476309726] [2021-10-16 01:24:26,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:24:26,708 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:24:26,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:24:26,800 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2021-10-16 01:24:26,800 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 01:24:26,800 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476309726] [2021-10-16 01:24:26,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476309726] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 01:24:26,801 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 01:24:26,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 01:24:26,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666671486] [2021-10-16 01:24:26,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 01:24:26,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 01:24:26,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 01:24:26,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:24:26,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:26,804 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 01:24:26,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:24:26,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:26,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:26,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-16 01:24:26,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:26,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:24:26,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:24:26,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:24:26,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-10-16 01:24:26,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:26,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:26,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:26,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 01:24:26,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:26,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:24:26,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:24:26,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:24:26,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-16 01:24:26,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:26,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-16 01:24:26,876 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:24:26,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:24:26,877 INFO L82 PathProgramCache]: Analyzing trace with hash -1243084791, now seen corresponding path program 1 times [2021-10-16 01:24:26,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 01:24:26,877 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818950059] [2021-10-16 01:24:26,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:24:26,878 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:24:26,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:24:27,149 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 12 proven. 256 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-10-16 01:24:27,149 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 01:24:27,149 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818950059] [2021-10-16 01:24:27,150 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818950059] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:24:27,150 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [690821397] [2021-10-16 01:24:27,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:24:27,150 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:24:27,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 [2021-10-16 01:24:27,151 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 01:24:27,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-16 01:24:27,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:24:27,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-16 01:24:27,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:24:28,471 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 12 proven. 256 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-10-16 01:24:28,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [690821397] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:24:28,472 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-16 01:24:28,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 14 [2021-10-16 01:24:28,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067145344] [2021-10-16 01:24:28,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-16 01:24:28,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 01:24:28,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-16 01:24:28,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2021-10-16 01:24:28,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:28,477 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 01:24:28,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 19.928571428571427) internal successors, (279), 14 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:24:28,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:28,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:28,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-16 01:24:28,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:28,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:24:28,479 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:24:28,479 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:24:28,479 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-10-16 01:24:28,479 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:28,479 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:29,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:29,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:29,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 01:24:29,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:29,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:24:29,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:24:29,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:24:29,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-16 01:24:29,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:29,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-16 01:24:29,103 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-16 01:24:29,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:24:29,276 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:24:29,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:24:29,277 INFO L82 PathProgramCache]: Analyzing trace with hash 1030612169, now seen corresponding path program 2 times [2021-10-16 01:24:29,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 01:24:29,277 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593814190] [2021-10-16 01:24:29,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:24:29,277 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:24:29,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:24:29,451 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 12 proven. 235 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-10-16 01:24:29,452 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 01:24:29,452 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593814190] [2021-10-16 01:24:29,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593814190] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:24:29,452 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [304224730] [2021-10-16 01:24:29,452 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-16 01:24:29,453 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:24:29,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 [2021-10-16 01:24:29,454 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 01:24:29,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-16 01:24:30,061 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-16 01:24:30,061 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 01:24:30,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-16 01:24:30,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:24:30,770 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 12 proven. 235 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-10-16 01:24:30,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [304224730] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:24:30,770 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-16 01:24:30,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 12 [2021-10-16 01:24:30,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114937811] [2021-10-16 01:24:30,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-16 01:24:30,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 01:24:30,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-16 01:24:30,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-10-16 01:24:30,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:30,774 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 01:24:30,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 21.416666666666668) internal successors, (257), 12 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:24:30,774 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:30,774 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:30,775 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-16 01:24:30,775 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:30,775 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:24:30,775 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:24:30,775 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:24:30,775 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-10-16 01:24:30,775 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:30,776 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-10-16 01:24:30,776 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:30,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:30,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:30,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 01:24:30,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:30,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:24:30,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:24:30,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:24:30,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-16 01:24:30,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:30,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-16 01:24:30,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-16 01:24:30,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-16 01:24:31,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:24:31,155 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:24:31,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:24:31,155 INFO L82 PathProgramCache]: Analyzing trace with hash 209647464, now seen corresponding path program 1 times [2021-10-16 01:24:31,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 01:24:31,155 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094133676] [2021-10-16 01:24:31,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:24:31,156 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:24:31,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:24:31,381 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 12 proven. 252 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-10-16 01:24:31,382 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 01:24:31,382 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094133676] [2021-10-16 01:24:31,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094133676] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:24:31,382 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1051108008] [2021-10-16 01:24:31,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:24:31,383 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:24:31,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 [2021-10-16 01:24:31,387 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 01:24:31,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-16 01:24:32,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:24:32,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 554 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-16 01:24:32,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:24:33,003 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 12 proven. 252 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-10-16 01:24:33,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1051108008] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:24:33,004 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-16 01:24:33,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 13 [2021-10-16 01:24:33,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505164954] [2021-10-16 01:24:33,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-16 01:24:33,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 01:24:33,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-16 01:24:33,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2021-10-16 01:24:33,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:33,009 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 01:24:33,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 21.384615384615383) internal successors, (278), 13 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:24:33,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:33,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:33,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-16 01:24:33,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:33,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:24:33,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:24:33,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:24:33,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-10-16 01:24:33,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:33,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-10-16 01:24:33,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-16 01:24:33,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:33,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:33,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:33,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 01:24:33,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:33,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:24:33,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:24:33,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:24:33,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-16 01:24:33,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:33,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-16 01:24:33,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-16 01:24:33,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-16 01:24:33,594 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-16 01:24:33,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:24:33,766 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:24:33,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:24:33,767 INFO L82 PathProgramCache]: Analyzing trace with hash -819022741, now seen corresponding path program 3 times [2021-10-16 01:24:33,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 01:24:33,767 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143966368] [2021-10-16 01:24:33,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:24:33,767 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:24:33,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:24:33,995 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 12 proven. 258 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-16 01:24:33,995 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 01:24:33,996 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143966368] [2021-10-16 01:24:33,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143966368] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:24:33,996 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [760139288] [2021-10-16 01:24:33,996 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-16 01:24:33,996 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:24:33,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 [2021-10-16 01:24:33,998 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 01:24:34,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-16 01:24:34,771 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-10-16 01:24:34,771 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 01:24:34,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-16 01:24:34,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:24:35,623 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 12 proven. 235 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-10-16 01:24:35,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [760139288] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:24:35,624 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-16 01:24:35,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 12 [2021-10-16 01:24:35,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860009417] [2021-10-16 01:24:35,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-16 01:24:35,629 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 01:24:35,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-16 01:24:35,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-10-16 01:24:35,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:35,647 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 01:24:35,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 21.416666666666668) internal successors, (257), 12 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:24:35,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:35,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:35,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-16 01:24:35,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:35,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:24:35,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:24:35,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:24:35,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-10-16 01:24:35,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:35,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-10-16 01:24:35,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-16 01:24:35,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-10-16 01:24:35,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:35,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:35,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:35,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 01:24:35,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:35,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:24:35,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:24:35,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:24:35,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-16 01:24:35,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:35,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-16 01:24:35,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-16 01:24:35,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-16 01:24:35,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-16 01:24:35,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-16 01:24:36,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-10-16 01:24:36,029 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:24:36,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:24:36,030 INFO L82 PathProgramCache]: Analyzing trace with hash -2039128438, now seen corresponding path program 2 times [2021-10-16 01:24:36,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 01:24:36,030 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726678649] [2021-10-16 01:24:36,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:24:36,030 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:24:36,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:24:36,210 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 12 proven. 275 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-10-16 01:24:36,211 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 01:24:36,213 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726678649] [2021-10-16 01:24:36,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726678649] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:24:36,213 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1436830951] [2021-10-16 01:24:36,213 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-16 01:24:36,214 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:24:36,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 [2021-10-16 01:24:36,219 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 01:24:36,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-16 01:24:37,092 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-16 01:24:37,093 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 01:24:37,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 554 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-16 01:24:37,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:24:37,951 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 12 proven. 252 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-10-16 01:24:37,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1436830951] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:24:37,951 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-16 01:24:37,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 13 [2021-10-16 01:24:37,953 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546925124] [2021-10-16 01:24:37,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-16 01:24:37,955 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 01:24:37,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-16 01:24:37,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2021-10-16 01:24:37,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:37,957 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 01:24:37,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 21.384615384615383) internal successors, (278), 13 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:24:37,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:37,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:37,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-16 01:24:37,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:37,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:24:37,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:24:37,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:24:37,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-10-16 01:24:37,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:37,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-10-16 01:24:37,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-16 01:24:37,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-10-16 01:24:37,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-16 01:24:37,978 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:38,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:38,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:38,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 01:24:38,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:38,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:24:38,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:24:38,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:24:38,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-16 01:24:38,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:38,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-16 01:24:38,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:24:38,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-16 01:24:38,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-16 01:24:38,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-16 01:24:38,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-10-16 01:24:39,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:24:39,003 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:24:39,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:24:39,003 INFO L82 PathProgramCache]: Analyzing trace with hash -1811598967, now seen corresponding path program 4 times [2021-10-16 01:24:39,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 01:24:39,003 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831965957] [2021-10-16 01:24:39,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:24:39,004 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:24:39,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:24:39,150 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 278 trivial. 0 not checked. [2021-10-16 01:24:39,151 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 01:24:39,151 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831965957] [2021-10-16 01:24:39,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831965957] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 01:24:39,151 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 01:24:39,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-16 01:24:39,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168258621] [2021-10-16 01:24:39,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-16 01:24:39,152 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 01:24:39,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-16 01:24:39,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-16 01:24:39,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:39,153 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 01:24:39,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:24:39,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:39,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:39,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-16 01:24:39,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:39,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:24:39,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:24:39,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:24:39,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-10-16 01:24:39,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:39,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-10-16 01:24:39,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:24:39,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-16 01:24:39,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-10-16 01:24:39,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-10-16 01:24:39,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:39,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:39,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:39,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 01:24:39,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:39,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:24:39,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:24:39,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:24:39,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-16 01:24:39,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:39,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-16 01:24:39,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:24:39,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-16 01:24:39,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-16 01:24:39,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-16 01:24:39,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:39,255 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 01:24:39,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-16 01:24:39,264 INFO L308 ceAbstractionStarter]: Result for error location t1Thread1of1ForFork0 was SAFE (1/3) [2021-10-16 01:24:39,267 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-16 01:24:39,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 [2021-10-16 01:24:39,271 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-10-16 01:24:39,276 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-10-16 01:24:39,277 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 01:24:39,277 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-16 01:24:39,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (13)] Waiting until timeout for monitored process [2021-10-16 01:24:39,389 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-16 01:24:39,389 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-16 01:24:39,392 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE (2/3) [2021-10-16 01:24:39,393 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-16 01:24:39,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 [2021-10-16 01:24:39,395 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-10-16 01:24:39,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (14)] Waiting until timeout for monitored process [2021-10-16 01:24:39,400 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t2Thread1of1ForFork1 ======== [2021-10-16 01:24:39,401 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 01:24:39,401 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 01:24:39,473 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:24:39,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:24:39,473 INFO L82 PathProgramCache]: Analyzing trace with hash 601103572, now seen corresponding path program 1 times [2021-10-16 01:24:39,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 01:24:39,474 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738503522] [2021-10-16 01:24:39,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:24:39,474 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:24:39,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:24:39,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:24:39,499 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 01:24:39,499 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738503522] [2021-10-16 01:24:39,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738503522] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 01:24:39,500 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 01:24:39,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 01:24:39,500 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018029574] [2021-10-16 01:24:39,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-16 01:24:39,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 01:24:39,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-16 01:24:39,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 01:24:39,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:39,502 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 01:24:39,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:24:39,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:39,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:39,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-16 01:24:39,504 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:24:39,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:24:39,505 INFO L82 PathProgramCache]: Analyzing trace with hash 346367027, now seen corresponding path program 1 times [2021-10-16 01:24:39,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 01:24:39,505 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226832008] [2021-10-16 01:24:39,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:24:39,506 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:24:39,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:24:39,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:24:39,583 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 01:24:39,583 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226832008] [2021-10-16 01:24:39,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226832008] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 01:24:39,583 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 01:24:39,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 01:24:39,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780569081] [2021-10-16 01:24:39,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 01:24:39,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 01:24:39,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 01:24:39,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:24:39,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:39,585 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 01:24:39,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:24:39,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:39,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:39,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:39,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:39,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-16 01:24:39,616 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:24:39,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:24:39,616 INFO L82 PathProgramCache]: Analyzing trace with hash 2086539855, now seen corresponding path program 1 times [2021-10-16 01:24:39,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 01:24:39,617 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258167615] [2021-10-16 01:24:39,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:24:39,617 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:24:39,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:24:39,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:24:39,653 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 01:24:39,653 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258167615] [2021-10-16 01:24:39,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258167615] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 01:24:39,653 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 01:24:39,653 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 01:24:39,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30592404] [2021-10-16 01:24:39,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 01:24:39,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 01:24:39,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 01:24:39,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:24:39,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:39,659 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 01:24:39,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:24:39,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:39,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:39,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:39,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:39,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:39,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:39,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-16 01:24:39,703 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:24:39,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:24:39,704 INFO L82 PathProgramCache]: Analyzing trace with hash -1761292213, now seen corresponding path program 1 times [2021-10-16 01:24:39,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 01:24:39,704 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915503276] [2021-10-16 01:24:39,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:24:39,705 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:24:39,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:24:39,743 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:24:39,743 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 01:24:39,743 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915503276] [2021-10-16 01:24:39,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915503276] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 01:24:39,744 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 01:24:39,744 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 01:24:39,744 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657619888] [2021-10-16 01:24:39,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 01:24:39,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 01:24:39,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 01:24:39,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:24:39,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:39,747 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 01:24:39,747 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:24:39,747 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:39,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:39,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:39,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:39,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:39,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:39,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:39,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:39,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-16 01:24:39,790 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:24:39,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:24:39,790 INFO L82 PathProgramCache]: Analyzing trace with hash -690479421, now seen corresponding path program 1 times [2021-10-16 01:24:39,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 01:24:39,791 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163029307] [2021-10-16 01:24:39,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:24:39,791 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:24:39,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:24:39,890 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:24:39,890 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 01:24:39,891 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163029307] [2021-10-16 01:24:39,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163029307] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:24:39,891 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1588370063] [2021-10-16 01:24:39,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:24:39,891 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:24:39,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 [2021-10-16 01:24:39,893 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 01:24:39,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-10-16 01:24:40,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:24:40,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-16 01:24:40,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:24:41,070 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:24:41,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1588370063] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:24:41,071 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-16 01:24:41,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-10-16 01:24:41,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189393484] [2021-10-16 01:24:41,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-16 01:24:41,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 01:24:41,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-16 01:24:41,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-16 01:24:41,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:41,073 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 01:24:41,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.857142857142858) internal successors, (139), 7 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:24:41,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:41,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:41,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:41,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:41,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:41,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:41,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:41,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:41,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:41,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:41,158 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-10-16 01:24:41,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:24:41,335 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:24:41,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:24:41,335 INFO L82 PathProgramCache]: Analyzing trace with hash -2035501349, now seen corresponding path program 1 times [2021-10-16 01:24:41,335 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 01:24:41,336 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767956712] [2021-10-16 01:24:41,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:24:41,336 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:24:41,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:24:41,434 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 11 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:24:41,434 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 01:24:41,434 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767956712] [2021-10-16 01:24:41,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767956712] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:24:41,435 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [189299542] [2021-10-16 01:24:41,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:24:41,435 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:24:41,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 [2021-10-16 01:24:41,439 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 01:24:41,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-10-16 01:24:42,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:24:42,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-16 01:24:42,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:24:42,741 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 11 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:24:42,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [189299542] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:24:42,741 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-16 01:24:42,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-10-16 01:24:42,741 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038030249] [2021-10-16 01:24:42,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-16 01:24:42,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 01:24:42,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-16 01:24:42,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-16 01:24:42,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:42,743 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 01:24:42,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.571428571428573) internal successors, (186), 7 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:24:42,743 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:42,743 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:42,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:42,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:42,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:42,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:42,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:42,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:42,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:42,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:42,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:42,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:42,826 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-10-16 01:24:43,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:24:43,006 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:24:43,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:24:43,007 INFO L82 PathProgramCache]: Analyzing trace with hash -134047181, now seen corresponding path program 2 times [2021-10-16 01:24:43,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 01:24:43,007 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471265928] [2021-10-16 01:24:43,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:24:43,007 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:24:43,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:24:43,097 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:24:43,098 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 01:24:43,098 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471265928] [2021-10-16 01:24:43,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471265928] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:24:43,098 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1844292234] [2021-10-16 01:24:43,099 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-16 01:24:43,099 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:24:43,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 [2021-10-16 01:24:43,100 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 01:24:43,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-10-16 01:24:43,943 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-16 01:24:43,943 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 01:24:43,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-16 01:24:43,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:24:44,386 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:24:44,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1844292234] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 01:24:44,387 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-16 01:24:44,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 14 [2021-10-16 01:24:44,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866268359] [2021-10-16 01:24:44,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-16 01:24:44,388 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 01:24:44,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-16 01:24:44,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2021-10-16 01:24:44,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:44,389 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 01:24:44,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.444444444444445) internal successors, (139), 9 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:24:44,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:44,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:44,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:44,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:44,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:44,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:44,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:44,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:44,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:44,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:44,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:44,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:44,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:44,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:24:44,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-10-16 01:24:44,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:24:44,738 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:24:44,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:24:44,739 INFO L82 PathProgramCache]: Analyzing trace with hash -458153046, now seen corresponding path program 1 times [2021-10-16 01:24:44,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 01:24:44,739 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100721133] [2021-10-16 01:24:44,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:24:44,739 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:24:44,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:24:44,851 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:24:44,851 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 01:24:44,852 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100721133] [2021-10-16 01:24:44,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100721133] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:24:44,852 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1988684190] [2021-10-16 01:24:44,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:24:44,852 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:24:44,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 [2021-10-16 01:24:44,853 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 01:24:44,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-10-16 01:24:45,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:24:45,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-16 01:24:45,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:24:46,176 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:24:46,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1988684190] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:24:46,177 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-16 01:24:46,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-10-16 01:24:46,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636238688] [2021-10-16 01:24:46,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-16 01:24:46,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 01:24:46,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-16 01:24:46,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-10-16 01:24:46,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:46,180 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 01:24:46,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.444444444444443) internal successors, (184), 9 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:24:46,180 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:46,180 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:46,180 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:46,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:46,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:46,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:46,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:24:46,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:46,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:46,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:46,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:46,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:46,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:46,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:46,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:24:46,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:24:46,305 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-10-16 01:24:46,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-10-16 01:24:46,491 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:24:46,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:24:46,491 INFO L82 PathProgramCache]: Analyzing trace with hash -256699966, now seen corresponding path program 1 times [2021-10-16 01:24:46,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 01:24:46,492 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026573418] [2021-10-16 01:24:46,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:24:46,492 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:24:46,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:24:46,604 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 21 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:24:46,604 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 01:24:46,604 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026573418] [2021-10-16 01:24:46,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026573418] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:24:46,605 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1816263819] [2021-10-16 01:24:46,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:24:46,605 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:24:46,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 [2021-10-16 01:24:46,607 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 01:24:46,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-10-16 01:24:47,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:24:47,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-16 01:24:47,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:24:48,233 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 21 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:24:48,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1816263819] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:24:48,234 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-16 01:24:48,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-10-16 01:24:48,234 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552396202] [2021-10-16 01:24:48,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-16 01:24:48,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 01:24:48,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-16 01:24:48,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-10-16 01:24:48,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:48,236 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 01:24:48,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 25.666666666666668) internal successors, (231), 9 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:24:48,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:48,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:48,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:48,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:48,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:48,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:48,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:24:48,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:24:48,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:48,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:48,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:48,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:48,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:48,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:48,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:48,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:24:48,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:24:48,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:24:48,342 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2021-10-16 01:24:48,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-10-16 01:24:48,527 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:24:48,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:24:48,527 INFO L82 PathProgramCache]: Analyzing trace with hash 891321914, now seen corresponding path program 2 times [2021-10-16 01:24:48,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 01:24:48,527 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841477161] [2021-10-16 01:24:48,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:24:48,528 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:24:48,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:24:48,628 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:24:48,628 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 01:24:48,629 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841477161] [2021-10-16 01:24:48,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841477161] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:24:48,629 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [492614141] [2021-10-16 01:24:48,629 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-16 01:24:48,629 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:24:48,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 [2021-10-16 01:24:48,630 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 01:24:48,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-10-16 01:24:49,824 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-16 01:24:49,824 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 01:24:49,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-16 01:24:49,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:24:50,280 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:24:50,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [492614141] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:24:50,280 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-16 01:24:50,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2021-10-16 01:24:50,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573860751] [2021-10-16 01:24:50,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-16 01:24:50,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 01:24:50,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-16 01:24:50,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-10-16 01:24:50,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:50,282 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 01:24:50,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 19.90909090909091) internal successors, (219), 11 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:24:50,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:50,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:50,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:50,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:50,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:50,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:50,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:24:50,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:24:50,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:24:50,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:50,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:50,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:50,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:50,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:50,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:50,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:50,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:24:50,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:24:50,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:24:50,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:24:50,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-10-16 01:24:50,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-10-16 01:24:50,599 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:24:50,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:24:50,600 INFO L82 PathProgramCache]: Analyzing trace with hash 1105156178, now seen corresponding path program 2 times [2021-10-16 01:24:50,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 01:24:50,600 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280207098] [2021-10-16 01:24:50,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:24:50,601 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:24:50,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:24:50,725 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 31 proven. 150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:24:50,725 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 01:24:50,725 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280207098] [2021-10-16 01:24:50,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280207098] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:24:50,726 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [944155364] [2021-10-16 01:24:50,726 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-16 01:24:50,726 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:24:50,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 [2021-10-16 01:24:50,727 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 01:24:50,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-10-16 01:24:51,910 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-16 01:24:51,910 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 01:24:51,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-16 01:24:51,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:24:52,433 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 31 proven. 150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:24:52,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [944155364] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:24:52,433 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-16 01:24:52,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2021-10-16 01:24:52,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453715805] [2021-10-16 01:24:52,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-16 01:24:52,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 01:24:52,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-16 01:24:52,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-10-16 01:24:52,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:52,435 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 01:24:52,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 24.181818181818183) internal successors, (266), 11 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:24:52,435 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:52,435 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:52,435 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:52,435 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:52,435 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:52,435 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:52,435 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:24:52,436 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:24:52,436 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:24:52,436 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:24:52,436 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:52,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:52,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:52,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:52,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:52,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:52,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:52,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:24:52,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:24:52,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:24:52,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:24:52,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:24:52,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-10-16 01:24:52,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-10-16 01:24:52,729 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:24:52,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:24:52,729 INFO L82 PathProgramCache]: Analyzing trace with hash -206399062, now seen corresponding path program 3 times [2021-10-16 01:24:52,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 01:24:52,729 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485320620] [2021-10-16 01:24:52,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:24:52,730 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:24:52,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:24:52,855 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 214 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:24:52,856 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 01:24:52,856 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485320620] [2021-10-16 01:24:52,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485320620] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:24:52,856 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1098295006] [2021-10-16 01:24:52,856 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-16 01:24:52,857 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:24:52,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 [2021-10-16 01:24:52,858 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 01:24:52,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-10-16 01:24:53,868 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-10-16 01:24:53,868 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 01:24:53,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 50 conjunts are in the unsatisfiable core [2021-10-16 01:24:53,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:24:54,779 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 66 [2021-10-16 01:24:55,950 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 23 [2021-10-16 01:24:56,460 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-10-16 01:24:56,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1098295006] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 01:24:56,460 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-16 01:24:56,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [11] total 31 [2021-10-16 01:24:56,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263778140] [2021-10-16 01:24:56,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-16 01:24:56,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 01:24:56,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-16 01:24:56,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=853, Unknown=0, NotChecked=0, Total=930 [2021-10-16 01:24:56,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:56,462 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 01:24:56,462 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 6.545454545454546) internal successors, (144), 22 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:24:56,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:24:56,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:56,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:56,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:24:56,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:56,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:24:56,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:24:56,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:24:56,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:24:56,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:24:56,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:24:56,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:25:02,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:25:02,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:25:02,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:25:02,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:25:02,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:25:02,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:25:02,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:25:02,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:25:02,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:25:02,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:25:02,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:25:02,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-10-16 01:25:02,845 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-10-16 01:25:03,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-10-16 01:25:03,034 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:25:03,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:25:03,035 INFO L82 PathProgramCache]: Analyzing trace with hash -615208524, now seen corresponding path program 1 times [2021-10-16 01:25:03,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 01:25:03,035 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643410821] [2021-10-16 01:25:03,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:25:03,035 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:25:03,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:25:03,175 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 214 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-16 01:25:03,175 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 01:25:03,176 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643410821] [2021-10-16 01:25:03,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643410821] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:25:03,176 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1695189790] [2021-10-16 01:25:03,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:25:03,176 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:25:03,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 [2021-10-16 01:25:03,177 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 01:25:03,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-10-16 01:25:04,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:25:04,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-16 01:25:04,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:25:04,944 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 214 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-16 01:25:04,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1695189790] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:25:04,945 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-16 01:25:04,945 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 13 [2021-10-16 01:25:04,945 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054154334] [2021-10-16 01:25:04,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-16 01:25:04,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 01:25:04,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-16 01:25:04,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-10-16 01:25:04,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:25:04,947 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 01:25:04,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 20.307692307692307) internal successors, (264), 13 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:25:04,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:25:04,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:25:04,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:25:04,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:25:04,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:25:04,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:25:04,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:25:04,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:25:04,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:25:04,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:25:04,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:25:04,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-10-16 01:25:04,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:25:05,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:25:05,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:25:05,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:25:05,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:25:05,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:25:05,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:25:05,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:25:05,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:25:05,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:25:05,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:25:05,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:25:05,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-10-16 01:25:05,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:25:05,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2021-10-16 01:25:05,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-10-16 01:25:05,269 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:25:05,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:25:05,270 INFO L82 PathProgramCache]: Analyzing trace with hash 1835814860, now seen corresponding path program 1 times [2021-10-16 01:25:05,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 01:25:05,270 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703988237] [2021-10-16 01:25:05,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:25:05,271 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:25:05,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:25:05,406 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 41 proven. 270 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-16 01:25:05,407 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 01:25:05,407 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703988237] [2021-10-16 01:25:05,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703988237] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:25:05,407 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1518010516] [2021-10-16 01:25:05,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:25:05,408 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:25:05,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 [2021-10-16 01:25:05,414 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 01:25:05,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-10-16 01:25:06,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:25:06,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 548 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-16 01:25:06,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:25:07,641 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 41 proven. 270 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-16 01:25:07,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1518010516] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:25:07,641 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-16 01:25:07,642 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 13 [2021-10-16 01:25:07,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106172178] [2021-10-16 01:25:07,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-16 01:25:07,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 01:25:07,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-16 01:25:07,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-10-16 01:25:07,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:25:07,644 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 01:25:07,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 23.923076923076923) internal successors, (311), 13 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:25:07,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:25:07,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:25:07,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:25:07,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:25:07,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:25:07,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:25:07,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:25:07,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:25:07,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:25:07,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:25:07,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:25:07,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-10-16 01:25:07,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:25:07,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:25:07,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:25:07,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:25:07,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:25:07,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:25:07,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:25:07,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:25:07,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:25:07,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:25:07,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:25:07,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:25:07,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:25:07,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-10-16 01:25:07,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:25:07,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:25:07,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2021-10-16 01:25:07,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-10-16 01:25:07,998 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:25:07,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:25:07,999 INFO L82 PathProgramCache]: Analyzing trace with hash 1637787716, now seen corresponding path program 2 times [2021-10-16 01:25:07,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 01:25:07,999 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028481134] [2021-10-16 01:25:07,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:25:07,999 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:25:08,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:25:08,226 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 261 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:25:08,227 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 01:25:08,227 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028481134] [2021-10-16 01:25:08,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028481134] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:25:08,228 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [906869129] [2021-10-16 01:25:08,228 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-16 01:25:08,228 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:25:08,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 [2021-10-16 01:25:08,229 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 01:25:08,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-10-16 01:25:09,676 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-16 01:25:09,676 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 01:25:09,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-16 01:25:09,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:25:10,447 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 358 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:25:10,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [906869129] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:25:10,447 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-16 01:25:10,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 18 [2021-10-16 01:25:10,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064463006] [2021-10-16 01:25:10,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-16 01:25:10,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 01:25:10,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-16 01:25:10,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2021-10-16 01:25:10,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:25:10,449 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 01:25:10,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 18.555555555555557) internal successors, (334), 18 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:25:10,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:25:10,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:25:10,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:25:10,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:25:10,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:25:10,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:25:10,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:25:10,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:25:10,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:25:10,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:25:10,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:25:10,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-10-16 01:25:10,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:25:10,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:25:10,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:25:10,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:25:10,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:25:10,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:25:10,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:25:10,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:25:10,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:25:10,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:25:10,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:25:10,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:25:10,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:25:10,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:25:10,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-10-16 01:25:10,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:25:10,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:25:10,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-16 01:25:10,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2021-10-16 01:25:11,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:25:11,027 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:25:11,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:25:11,027 INFO L82 PathProgramCache]: Analyzing trace with hash 1615040635, now seen corresponding path program 1 times [2021-10-16 01:25:11,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 01:25:11,027 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785971610] [2021-10-16 01:25:11,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:25:11,028 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:25:11,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:25:13,125 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 0 proven. 384 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:25:13,126 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 01:25:13,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785971610] [2021-10-16 01:25:13,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785971610] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:25:13,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [248155839] [2021-10-16 01:25:13,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:25:13,126 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:25:13,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 [2021-10-16 01:25:13,128 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 01:25:13,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-10-16 01:25:14,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:25:14,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 576 conjuncts, 67 conjunts are in the unsatisfiable core [2021-10-16 01:25:14,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:25:15,981 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 66 [2021-10-16 01:25:17,229 INFO L354 Elim1Store]: treesize reduction 40, result has 23.1 percent of original size [2021-10-16 01:25:17,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 77 treesize of output 49 [2021-10-16 01:25:19,275 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 23 [2021-10-16 01:25:19,876 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 202 proven. 59 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-10-16 01:25:19,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [248155839] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:25:19,876 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-16 01:25:19,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 29] total 64 [2021-10-16 01:25:19,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683954218] [2021-10-16 01:25:19,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2021-10-16 01:25:19,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 01:25:19,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2021-10-16 01:25:19,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=3879, Unknown=0, NotChecked=0, Total=4032 [2021-10-16 01:25:19,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:25:19,880 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 01:25:19,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 7.65625) internal successors, (490), 64 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:25:19,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:25:19,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:25:19,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:25:19,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:25:19,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:25:19,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:25:19,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:25:19,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:25:19,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:25:19,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:25:19,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:25:19,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-10-16 01:25:19,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:25:19,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:25:19,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-10-16 01:25:19,883 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:25:51,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:25:51,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:25:51,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:25:51,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:25:51,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:25:51,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:25:51,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:25:51,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:25:51,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:25:51,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:25:51,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:25:51,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-10-16 01:25:51,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:25:51,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:25:51,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-16 01:25:51,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2021-10-16 01:25:51,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-10-16 01:25:52,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:25:52,152 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:25:52,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:25:52,153 INFO L82 PathProgramCache]: Analyzing trace with hash -313361019, now seen corresponding path program 3 times [2021-10-16 01:25:52,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 01:25:52,153 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748565319] [2021-10-16 01:25:52,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:25:52,153 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:25:52,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:25:52,435 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 264 proven. 157 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:25:52,435 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 01:25:52,436 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748565319] [2021-10-16 01:25:52,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748565319] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:25:52,436 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1956090993] [2021-10-16 01:25:52,437 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-16 01:25:52,437 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:25:52,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 [2021-10-16 01:25:52,444 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 01:25:52,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-10-16 01:25:54,036 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-10-16 01:25:54,036 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 01:25:54,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 619 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-16 01:25:54,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:25:54,921 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 361 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:25:54,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1956090993] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:25:54,922 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-16 01:25:54,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 19 [2021-10-16 01:25:54,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468575304] [2021-10-16 01:25:54,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-16 01:25:54,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 01:25:54,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-16 01:25:54,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2021-10-16 01:25:54,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:25:54,924 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 01:25:54,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 19.36842105263158) internal successors, (368), 19 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:25:54,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:25:54,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:25:54,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:25:54,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:25:54,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:25:54,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:25:54,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:25:54,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:25:54,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:25:54,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:25:54,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:25:54,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-10-16 01:25:54,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:25:54,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:25:54,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-10-16 01:25:54,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2021-10-16 01:25:54,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:25:55,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:25:55,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:25:55,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:25:55,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:25:55,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:25:55,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:25:55,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:25:55,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:25:55,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:25:55,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:25:55,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:25:55,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-10-16 01:25:55,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:25:55,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:25:55,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-16 01:25:55,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2021-10-16 01:25:55,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-10-16 01:25:55,297 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2021-10-16 01:25:55,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2021-10-16 01:25:55,472 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:25:55,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:25:55,472 INFO L82 PathProgramCache]: Analyzing trace with hash 1057130620, now seen corresponding path program 2 times [2021-10-16 01:25:55,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 01:25:55,472 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381729754] [2021-10-16 01:25:55,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:25:55,472 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:25:55,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:25:57,340 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 0 proven. 447 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:25:57,340 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 01:25:57,340 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381729754] [2021-10-16 01:25:57,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381729754] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:25:57,341 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [744261984] [2021-10-16 01:25:57,341 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-16 01:25:57,341 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:25:57,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 [2021-10-16 01:25:57,351 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 01:25:57,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-10-16 01:25:59,010 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-16 01:25:59,010 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 01:25:59,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 634 conjuncts, 92 conjunts are in the unsatisfiable core [2021-10-16 01:25:59,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:25:59,921 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 66 [2021-10-16 01:26:00,922 INFO L354 Elim1Store]: treesize reduction 40, result has 23.1 percent of original size [2021-10-16 01:26:00,922 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 77 treesize of output 49 [2021-10-16 01:26:01,846 INFO L354 Elim1Store]: treesize reduction 40, result has 23.1 percent of original size [2021-10-16 01:26:01,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 77 treesize of output 49 [2021-10-16 01:26:04,015 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 23 [2021-10-16 01:26:04,346 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 213 proven. 187 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-10-16 01:26:04,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [744261984] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:26:04,346 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-16 01:26:04,347 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 38] total 77 [2021-10-16 01:26:04,347 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713987699] [2021-10-16 01:26:04,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 77 states [2021-10-16 01:26:04,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 01:26:04,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2021-10-16 01:26:04,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=226, Invalid=5626, Unknown=0, NotChecked=0, Total=5852 [2021-10-16 01:26:04,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:26:04,351 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 01:26:04,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 77 states, 77 states have (on average 7.701298701298701) internal successors, (593), 77 states have internal predecessors, (593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:26:04,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:26:04,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:26:04,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:26:04,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:26:04,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:26:04,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:26:04,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:26:04,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:26:04,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:26:04,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:26:04,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:26:04,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-10-16 01:26:04,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:26:04,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:26:04,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-10-16 01:26:04,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2021-10-16 01:26:04,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-10-16 01:26:04,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:26:40,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:26:40,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:26:40,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:26:40,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:26:40,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:26:40,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:26:40,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:26:40,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:26:40,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:26:40,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:26:40,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:26:40,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-10-16 01:26:40,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:26:40,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:26:40,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-16 01:26:40,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2021-10-16 01:26:40,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-10-16 01:26:40,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2021-10-16 01:26:40,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2021-10-16 01:26:40,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2021-10-16 01:26:40,986 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:26:40,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:26:40,987 INFO L82 PathProgramCache]: Analyzing trace with hash 1088012934, now seen corresponding path program 4 times [2021-10-16 01:26:40,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 01:26:40,987 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81476612] [2021-10-16 01:26:40,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:26:40,987 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:26:41,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:26:41,255 INFO L134 CoverageAnalysis]: Checked inductivity of 505 backedges. 267 proven. 238 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:26:41,255 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 01:26:41,255 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81476612] [2021-10-16 01:26:41,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81476612] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:26:41,255 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942796873] [2021-10-16 01:26:41,256 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-16 01:26:41,256 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:26:41,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 [2021-10-16 01:26:41,257 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 01:26:41,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-10-16 01:26:43,209 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-16 01:26:43,209 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 01:26:43,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 543 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-16 01:26:43,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:26:43,999 INFO L134 CoverageAnalysis]: Checked inductivity of 505 backedges. 364 proven. 141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:26:44,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [942796873] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:26:44,000 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-16 01:26:44,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 20 [2021-10-16 01:26:44,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814454382] [2021-10-16 01:26:44,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-16 01:26:44,001 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 01:26:44,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-16 01:26:44,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=313, Unknown=0, NotChecked=0, Total=380 [2021-10-16 01:26:44,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:26:44,002 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 01:26:44,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 20.1) internal successors, (402), 20 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:26:44,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:26:44,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:26:44,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:26:44,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:26:44,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:26:44,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:26:44,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:26:44,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:26:44,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:26:44,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:26:44,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:26:44,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-10-16 01:26:44,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:26:44,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:26:44,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-10-16 01:26:44,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2021-10-16 01:26:44,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-10-16 01:26:44,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 114 states. [2021-10-16 01:26:44,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:26:44,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:26:44,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:26:44,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:26:44,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:26:44,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:26:44,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:26:44,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:26:44,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:26:44,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:26:44,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:26:44,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:26:44,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-10-16 01:26:44,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:26:44,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:26:44,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-16 01:26:44,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2021-10-16 01:26:44,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-10-16 01:26:44,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2021-10-16 01:26:44,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-10-16 01:26:44,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2021-10-16 01:26:44,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:26:44,631 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:26:44,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:26:44,631 INFO L82 PathProgramCache]: Analyzing trace with hash 1323057213, now seen corresponding path program 3 times [2021-10-16 01:26:44,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 01:26:44,632 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294625571] [2021-10-16 01:26:44,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:26:44,632 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:26:44,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:26:46,734 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 544 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:26:46,734 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 01:26:46,735 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294625571] [2021-10-16 01:26:46,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294625571] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:26:46,735 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1645754043] [2021-10-16 01:26:46,735 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-16 01:26:46,735 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:26:46,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 [2021-10-16 01:26:46,736 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 01:26:46,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2021-10-16 01:26:48,905 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-10-16 01:26:48,906 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 01:26:48,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 630 conjuncts, 101 conjunts are in the unsatisfiable core [2021-10-16 01:26:48,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:26:49,812 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 66 [2021-10-16 01:26:50,934 INFO L354 Elim1Store]: treesize reduction 40, result has 23.1 percent of original size [2021-10-16 01:26:50,935 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 77 treesize of output 49 [2021-10-16 01:26:51,834 INFO L354 Elim1Store]: treesize reduction 40, result has 23.1 percent of original size [2021-10-16 01:26:51,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 77 treesize of output 49 [2021-10-16 01:26:52,794 INFO L354 Elim1Store]: treesize reduction 40, result has 23.1 percent of original size [2021-10-16 01:26:52,794 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 77 treesize of output 49 [2021-10-16 01:26:55,109 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 23 [2021-10-16 01:26:55,430 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 154 proven. 384 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-16 01:26:55,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1645754043] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:26:55,430 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-16 01:26:55,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 43] total 87 [2021-10-16 01:26:55,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215250765] [2021-10-16 01:26:55,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 87 states [2021-10-16 01:26:55,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 01:26:55,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2021-10-16 01:26:55,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=266, Invalid=7216, Unknown=0, NotChecked=0, Total=7482 [2021-10-16 01:26:55,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:26:55,435 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 01:26:55,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 87 states, 87 states have (on average 8.0) internal successors, (696), 87 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:26:55,436 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:26:55,436 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:26:55,436 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:26:55,436 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:26:55,436 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:26:55,436 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:26:55,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:26:55,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:26:55,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:26:55,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:26:55,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:26:55,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-10-16 01:26:55,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:26:55,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:26:55,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-10-16 01:26:55,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2021-10-16 01:26:55,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-10-16 01:26:55,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 114 states. [2021-10-16 01:26:55,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-10-16 01:26:55,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:27:39,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:27:39,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:27:39,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:27:39,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:27:39,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:27:39,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:27:39,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:27:39,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:27:39,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:27:39,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:27:39,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:27:39,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-10-16 01:27:39,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:27:39,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:27:39,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-16 01:27:39,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2021-10-16 01:27:39,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-10-16 01:27:39,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2021-10-16 01:27:39,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-10-16 01:27:39,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2021-10-16 01:27:39,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2021-10-16 01:27:39,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2021-10-16 01:27:39,746 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:27:39,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:27:39,747 INFO L82 PathProgramCache]: Analyzing trace with hash -987199673, now seen corresponding path program 5 times [2021-10-16 01:27:39,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 01:27:39,747 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653745891] [2021-10-16 01:27:39,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:27:39,747 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:27:39,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:27:40,060 INFO L134 CoverageAnalysis]: Checked inductivity of 623 backedges. 270 proven. 353 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:27:40,060 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 01:27:40,060 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653745891] [2021-10-16 01:27:40,060 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653745891] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:27:40,060 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2004590712] [2021-10-16 01:27:40,061 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-16 01:27:40,061 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:27:40,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 [2021-10-16 01:27:40,067 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 01:27:40,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2021-10-16 01:27:42,775 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-10-16 01:27:42,775 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 01:27:42,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 735 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-16 01:27:42,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:27:43,708 INFO L134 CoverageAnalysis]: Checked inductivity of 623 backedges. 367 proven. 256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:27:43,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2004590712] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:27:43,709 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-16 01:27:43,709 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 21 [2021-10-16 01:27:43,709 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004470232] [2021-10-16 01:27:43,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-16 01:27:43,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 01:27:43,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-16 01:27:43,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=348, Unknown=0, NotChecked=0, Total=420 [2021-10-16 01:27:43,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:27:43,711 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 01:27:43,711 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 20.761904761904763) internal successors, (436), 21 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:27:43,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:27:43,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:27:43,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:27:43,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:27:43,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:27:43,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:27:43,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:27:43,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:27:43,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:27:43,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:27:43,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:27:43,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-10-16 01:27:43,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:27:43,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:27:43,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-10-16 01:27:43,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2021-10-16 01:27:43,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-10-16 01:27:43,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 114 states. [2021-10-16 01:27:43,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-10-16 01:27:43,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 121 states. [2021-10-16 01:27:43,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:27:44,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:27:44,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:27:44,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:27:44,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:27:44,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:27:44,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:27:44,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:27:44,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:27:44,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:27:44,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:27:44,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:27:44,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-10-16 01:27:44,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:27:44,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:27:44,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-16 01:27:44,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2021-10-16 01:27:44,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-10-16 01:27:44,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2021-10-16 01:27:44,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-10-16 01:27:44,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2021-10-16 01:27:44,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-10-16 01:27:44,343 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2021-10-16 01:27:44,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2021-10-16 01:27:44,499 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:27:44,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:27:44,499 INFO L82 PathProgramCache]: Analyzing trace with hash -1561278530, now seen corresponding path program 4 times [2021-10-16 01:27:44,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 01:27:44,500 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368842383] [2021-10-16 01:27:44,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:27:44,500 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:27:44,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:27:47,384 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 0 proven. 675 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:27:47,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 01:27:47,384 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368842383] [2021-10-16 01:27:47,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368842383] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:27:47,385 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1996430797] [2021-10-16 01:27:47,385 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-16 01:27:47,385 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:27:47,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 [2021-10-16 01:27:47,398 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 01:27:47,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2021-10-16 01:27:49,922 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-16 01:27:49,922 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 01:27:49,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 750 conjuncts, 139 conjunts are in the unsatisfiable core [2021-10-16 01:27:49,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:27:50,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-10-16 01:27:51,327 INFO L354 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2021-10-16 01:27:51,327 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 29 [2021-10-16 01:27:52,147 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-16 01:27:52,148 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 31 [2021-10-16 01:27:53,001 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-16 01:27:53,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 31 [2021-10-16 01:27:53,869 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-16 01:27:53,869 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 31 [2021-10-16 01:27:56,848 INFO L354 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2021-10-16 01:27:56,849 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 19 [2021-10-16 01:27:57,130 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 0 proven. 675 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:27:57,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1996430797] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:27:57,131 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-16 01:27:57,131 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 55] total 73 [2021-10-16 01:27:57,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490875584] [2021-10-16 01:27:57,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2021-10-16 01:27:57,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 01:27:57,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2021-10-16 01:27:57,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=227, Invalid=5029, Unknown=0, NotChecked=0, Total=5256 [2021-10-16 01:27:57,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:27:57,135 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 01:27:57,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 73 states have (on average 6.123287671232877) internal successors, (447), 73 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:27:57,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:27:57,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:27:57,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:27:57,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:27:57,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:27:57,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:27:57,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:27:57,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:27:57,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:27:57,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:27:57,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:27:57,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-10-16 01:27:57,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:27:57,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:27:57,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-10-16 01:27:57,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2021-10-16 01:27:57,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-10-16 01:27:57,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 114 states. [2021-10-16 01:27:57,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-10-16 01:27:57,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 121 states. [2021-10-16 01:27:57,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-10-16 01:27:57,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:28:02,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:28:02,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:28:02,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:28:02,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:28:02,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:28:02,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:28:02,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:28:02,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:28:02,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:28:02,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:28:02,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:28:02,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-10-16 01:28:02,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:28:02,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:28:02,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-16 01:28:02,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2021-10-16 01:28:02,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-10-16 01:28:02,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2021-10-16 01:28:02,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-10-16 01:28:02,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2021-10-16 01:28:02,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-10-16 01:28:02,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2021-10-16 01:28:02,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2021-10-16 01:28:02,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:28:02,980 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:28:02,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:28:02,980 INFO L82 PathProgramCache]: Analyzing trace with hash 841931720, now seen corresponding path program 6 times [2021-10-16 01:28:02,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 01:28:02,980 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289667840] [2021-10-16 01:28:02,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:28:02,981 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:28:03,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:28:03,210 INFO L134 CoverageAnalysis]: Checked inductivity of 775 backedges. 287 proven. 133 refuted. 0 times theorem prover too weak. 355 trivial. 0 not checked. [2021-10-16 01:28:03,211 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 01:28:03,211 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289667840] [2021-10-16 01:28:03,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289667840] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:28:03,211 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1455467011] [2021-10-16 01:28:03,211 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-16 01:28:03,212 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:28:03,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 [2021-10-16 01:28:03,222 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 01:28:03,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2021-10-16 01:28:06,426 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-10-16 01:28:06,426 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 01:28:06,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 793 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-16 01:28:06,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:28:07,252 INFO L134 CoverageAnalysis]: Checked inductivity of 775 backedges. 420 proven. 0 refuted. 0 times theorem prover too weak. 355 trivial. 0 not checked. [2021-10-16 01:28:07,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1455467011] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 01:28:07,252 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-16 01:28:07,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [13] total 15 [2021-10-16 01:28:07,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821437959] [2021-10-16 01:28:07,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-16 01:28:07,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 01:28:07,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-16 01:28:07,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2021-10-16 01:28:07,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:28:07,254 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 01:28:07,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 21.076923076923077) internal successors, (274), 13 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:28:07,254 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:28:07,254 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:28:07,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:28:07,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:28:07,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:28:07,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:28:07,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:28:07,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:28:07,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:28:07,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:28:07,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:28:07,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-10-16 01:28:07,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:28:07,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:28:07,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-10-16 01:28:07,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2021-10-16 01:28:07,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-10-16 01:28:07,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 114 states. [2021-10-16 01:28:07,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-10-16 01:28:07,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 121 states. [2021-10-16 01:28:07,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-10-16 01:28:07,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2021-10-16 01:28:07,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:33:36,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 01:33:36,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:33:36,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:33:36,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:33:36,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:33:36,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 01:33:36,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:33:36,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:33:36,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:33:36,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:33:36,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 01:33:36,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-10-16 01:33:36,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:33:36,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-16 01:33:36,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-16 01:33:36,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 277 states. [2021-10-16 01:33:36,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-10-16 01:33:36,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 434 states. [2021-10-16 01:33:36,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-10-16 01:33:36,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 367 states. [2021-10-16 01:33:36,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-10-16 01:33:36,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2021-10-16 01:33:36,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-16 01:33:36,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2021-10-16 01:33:36,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:33:36,665 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:33:36,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:33:36,666 INFO L82 PathProgramCache]: Analyzing trace with hash -1145472936, now seen corresponding path program 1 times [2021-10-16 01:33:36,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 01:33:36,666 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407623464] [2021-10-16 01:33:36,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:33:36,666 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:33:36,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 01:33:36,770 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-16 01:33:36,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 01:33:37,088 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-16 01:33:37,089 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-16 01:33:37,090 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t2Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 01:33:37,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-10-16 01:33:37,093 INFO L308 ceAbstractionStarter]: Result for error location t2Thread1of1ForFork1 was UNSAFE (3/3) [2021-10-16 01:33:37,099 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-16 01:33:37,099 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 01:33:37,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 01:33:37 BasicIcfg [2021-10-16 01:33:37,423 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 01:33:37,423 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 01:33:37,424 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 01:33:37,424 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 01:33:37,424 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:24:17" (3/4) ... [2021-10-16 01:33:37,427 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-16 01:33:37,690 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/witness.graphml [2021-10-16 01:33:37,691 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 01:33:37,692 INFO L168 Benchmark]: Toolchain (without parser) took 561643.77 ms. Allocated memory was 102.8 MB in the beginning and 1.6 GB in the end (delta: 1.5 GB). Free memory was 68.8 MB in the beginning and 499.6 MB in the end (delta: -430.8 MB). Peak memory consumption was 1.1 GB. Max. memory is 16.1 GB. [2021-10-16 01:33:37,692 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 83.9 MB. Free memory is still 53.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 01:33:37,693 INFO L168 Benchmark]: CACSL2BoogieTranslator took 943.53 ms. Allocated memory is still 102.8 MB. Free memory was 68.6 MB in the beginning and 67.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 25.0 MB. Max. memory is 16.1 GB. [2021-10-16 01:33:37,693 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.53 ms. Allocated memory is still 102.8 MB. Free memory was 67.4 MB in the beginning and 64.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 01:33:37,694 INFO L168 Benchmark]: Boogie Preprocessor took 80.49 ms. Allocated memory is still 102.8 MB. Free memory was 64.9 MB in the beginning and 63.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 01:33:37,694 INFO L168 Benchmark]: RCFGBuilder took 496.38 ms. Allocated memory is still 102.8 MB. Free memory was 62.8 MB in the beginning and 47.6 MB in the end (delta: 15.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-16 01:33:37,695 INFO L168 Benchmark]: TraceAbstraction took 559790.63 ms. Allocated memory was 102.8 MB in the beginning and 1.6 GB in the end (delta: 1.5 GB). Free memory was 47.2 MB in the beginning and 611.8 MB in the end (delta: -564.6 MB). Peak memory consumption was 916.3 MB. Max. memory is 16.1 GB. [2021-10-16 01:33:37,695 INFO L168 Benchmark]: Witness Printer took 267.40 ms. Allocated memory is still 1.6 GB. Free memory was 611.8 MB in the beginning and 499.6 MB in the end (delta: 112.2 MB). Peak memory consumption was 113.2 MB. Max. memory is 16.1 GB. [2021-10-16 01:33:37,704 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 83.9 MB. Free memory is still 53.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 943.53 ms. Allocated memory is still 102.8 MB. Free memory was 68.6 MB in the beginning and 67.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 25.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 58.53 ms. Allocated memory is still 102.8 MB. Free memory was 67.4 MB in the beginning and 64.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 80.49 ms. Allocated memory is still 102.8 MB. Free memory was 64.9 MB in the beginning and 63.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 496.38 ms. Allocated memory is still 102.8 MB. Free memory was 62.8 MB in the beginning and 47.6 MB in the end (delta: 15.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 559790.63 ms. Allocated memory was 102.8 MB in the beginning and 1.6 GB in the end (delta: 1.5 GB). Free memory was 47.2 MB in the beginning and 611.8 MB in the end (delta: -564.6 MB). Peak memory consumption was 916.3 MB. Max. memory is 16.1 GB. * Witness Printer took 267.40 ms. Allocated memory is still 1.6 GB. Free memory was 611.8 MB in the beginning and 499.6 MB in the end (delta: 112.2 MB). Peak memory consumption was 113.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 61925, positive: 58436, positive conditional: 48817, positive unconditional: 9619, negative: 3489, negative conditional: 3461, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 58843, positive: 58436, positive conditional: 48817, positive unconditional: 9619, negative: 407, negative conditional: 379, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 58843, positive: 58436, positive conditional: 48817, positive unconditional: 9619, negative: 407, negative conditional: 379, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 60966, positive: 58436, positive conditional: 48666, positive unconditional: 9770, negative: 2530, negative conditional: 2123, negative unconditional: 407, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 60966, positive: 58436, positive conditional: 8927, positive unconditional: 49509, negative: 2530, negative conditional: 250, negative unconditional: 2280, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 60966, positive: 58436, positive conditional: 8927, positive unconditional: 49509, negative: 2530, negative conditional: 250, negative unconditional: 2280, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6696, positive: 6661, positive conditional: 5, positive unconditional: 6656, negative: 35, negative conditional: 6, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 6696, positive: 6654, positive conditional: 0, positive unconditional: 6654, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 42, positive: 7, positive conditional: 2, positive unconditional: 5, negative: 35, negative conditional: 6, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 120, positive: 53, positive conditional: 3, positive unconditional: 50, negative: 67, negative conditional: 8, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 60966, positive: 51775, positive conditional: 8922, positive unconditional: 42853, negative: 2495, negative conditional: 244, negative unconditional: 2251, unknown: 6696, unknown conditional: 11, unknown unconditional: 6685] , Statistics on independence cache: Total cache size (in pairs): 6696, Positive cache size: 6661, Positive conditional cache size: 5, Positive unconditional cache size: 6656, Negative cache size: 35, Negative conditional cache size: 6, Negative unconditional cache size: 29, Eliminated conditions: 41612, Maximal queried relation: 13, Independence queries for same thread: 3082 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 413, Number of persistent set computation: 1843, Number of trivial persistent sets: 1325, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9647, positive: 9619, positive conditional: 0, positive unconditional: 9619, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 61925, positive: 58436, positive conditional: 48817, positive unconditional: 9619, negative: 3489, negative conditional: 3461, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 58843, positive: 58436, positive conditional: 48817, positive unconditional: 9619, negative: 407, negative conditional: 379, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 58843, positive: 58436, positive conditional: 48817, positive unconditional: 9619, negative: 407, negative conditional: 379, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 60966, positive: 58436, positive conditional: 48666, positive unconditional: 9770, negative: 2530, negative conditional: 2123, negative unconditional: 407, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 60966, positive: 58436, positive conditional: 8927, positive unconditional: 49509, negative: 2530, negative conditional: 250, negative unconditional: 2280, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 60966, positive: 58436, positive conditional: 8927, positive unconditional: 49509, negative: 2530, negative conditional: 250, negative unconditional: 2280, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6696, positive: 6661, positive conditional: 5, positive unconditional: 6656, negative: 35, negative conditional: 6, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 6696, positive: 6654, positive conditional: 0, positive unconditional: 6654, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 42, positive: 7, positive conditional: 2, positive unconditional: 5, negative: 35, negative conditional: 6, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 120, positive: 53, positive conditional: 3, positive unconditional: 50, negative: 67, negative conditional: 8, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 60966, positive: 51775, positive conditional: 8922, positive unconditional: 42853, negative: 2495, negative conditional: 244, negative unconditional: 2251, unknown: 6696, unknown conditional: 11, unknown unconditional: 6685] , Statistics on independence cache: Total cache size (in pairs): 6696, Positive cache size: 6661, Positive conditional cache size: 5, Positive unconditional cache size: 6656, Negative cache size: 35, Negative conditional cache size: 6, Negative unconditional cache size: 29, Eliminated conditions: 41612, Maximal queried relation: 13, Independence queries for same thread: 3082 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3646, positive: 3625, positive conditional: 105, positive unconditional: 3520, negative: 21, negative conditional: 9, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3639, positive: 3625, positive conditional: 105, positive unconditional: 3520, negative: 14, negative conditional: 2, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 3639, positive: 3625, positive conditional: 105, positive unconditional: 3520, negative: 14, negative conditional: 2, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3639, positive: 3625, positive conditional: 0, positive unconditional: 3625, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 3639, positive: 3625, positive conditional: 0, positive unconditional: 3625, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3639, positive: 3625, positive conditional: 0, positive unconditional: 3625, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3428, positive: 3416, positive conditional: 0, positive unconditional: 3416, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3428, positive: 3414, positive conditional: 0, positive unconditional: 3414, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 14, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 66, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 62, negative conditional: 0, negative unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3639, positive: 209, positive conditional: 0, positive unconditional: 209, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 3428, unknown conditional: 0, unknown unconditional: 3428] , Statistics on independence cache: Total cache size (in pairs): 3428, Positive cache size: 3416, Positive conditional cache size: 0, Positive unconditional cache size: 3416, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 7 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 101, Number of persistent set computation: 85, Number of trivial persistent sets: 78, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3532, positive: 3520, positive conditional: 0, positive unconditional: 3520, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3646, positive: 3625, positive conditional: 105, positive unconditional: 3520, negative: 21, negative conditional: 9, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3639, positive: 3625, positive conditional: 105, positive unconditional: 3520, negative: 14, negative conditional: 2, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 3639, positive: 3625, positive conditional: 105, positive unconditional: 3520, negative: 14, negative conditional: 2, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3639, positive: 3625, positive conditional: 0, positive unconditional: 3625, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 3639, positive: 3625, positive conditional: 0, positive unconditional: 3625, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3639, positive: 3625, positive conditional: 0, positive unconditional: 3625, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3428, positive: 3416, positive conditional: 0, positive unconditional: 3416, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3428, positive: 3414, positive conditional: 0, positive unconditional: 3414, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 14, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 66, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 62, negative conditional: 0, negative unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3639, positive: 209, positive conditional: 0, positive unconditional: 209, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 3428, unknown conditional: 0, unknown unconditional: 3428] , Statistics on independence cache: Total cache size (in pairs): 3428, Positive cache size: 3416, Positive conditional cache size: 0, Positive unconditional cache size: 3416, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 7 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 161630, positive: 151259, positive conditional: 140504, positive unconditional: 10755, negative: 10371, negative conditional: 10349, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 151841, positive: 151259, positive conditional: 140504, positive unconditional: 10755, negative: 582, negative conditional: 560, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 151841, positive: 151259, positive conditional: 140504, positive unconditional: 10755, negative: 582, negative conditional: 560, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 167509, positive: 151259, positive conditional: 140356, positive unconditional: 10903, negative: 16250, negative conditional: 15668, negative unconditional: 582, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 167509, positive: 151259, positive conditional: 5717, positive unconditional: 145542, negative: 16250, negative conditional: 860, negative unconditional: 15390, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 167509, positive: 151259, positive conditional: 5717, positive unconditional: 145542, negative: 16250, negative conditional: 860, negative unconditional: 15390, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6388, positive: 6315, positive conditional: 8, positive unconditional: 6307, negative: 73, negative conditional: 51, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 6388, positive: 6310, positive conditional: 0, positive unconditional: 6310, negative: 78, negative conditional: 0, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 78, positive: 5, positive conditional: 2, positive unconditional: 3, negative: 73, negative conditional: 51, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 291, positive: 6, positive conditional: 2, positive unconditional: 4, negative: 285, negative conditional: 200, negative unconditional: 85, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 167509, positive: 144944, positive conditional: 5709, positive unconditional: 139235, negative: 16177, negative conditional: 809, negative unconditional: 15368, unknown: 6388, unknown conditional: 59, unknown unconditional: 6329] , Statistics on independence cache: Total cache size (in pairs): 6388, Positive cache size: 6315, Positive conditional cache size: 8, Positive unconditional cache size: 6307, Negative cache size: 73, Negative conditional cache size: 51, Negative unconditional cache size: 22, Eliminated conditions: 149447, Maximal queried relation: 14, Independence queries for same thread: 9789 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 203, Number of persistent set computation: 920, Number of trivial persistent sets: 384, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10777, positive: 10755, positive conditional: 0, positive unconditional: 10755, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 161630, positive: 151259, positive conditional: 140504, positive unconditional: 10755, negative: 10371, negative conditional: 10349, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 151841, positive: 151259, positive conditional: 140504, positive unconditional: 10755, negative: 582, negative conditional: 560, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 151841, positive: 151259, positive conditional: 140504, positive unconditional: 10755, negative: 582, negative conditional: 560, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 167509, positive: 151259, positive conditional: 140356, positive unconditional: 10903, negative: 16250, negative conditional: 15668, negative unconditional: 582, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 167509, positive: 151259, positive conditional: 5717, positive unconditional: 145542, negative: 16250, negative conditional: 860, negative unconditional: 15390, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 167509, positive: 151259, positive conditional: 5717, positive unconditional: 145542, negative: 16250, negative conditional: 860, negative unconditional: 15390, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6388, positive: 6315, positive conditional: 8, positive unconditional: 6307, negative: 73, negative conditional: 51, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 6388, positive: 6310, positive conditional: 0, positive unconditional: 6310, negative: 78, negative conditional: 0, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 78, positive: 5, positive conditional: 2, positive unconditional: 3, negative: 73, negative conditional: 51, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 291, positive: 6, positive conditional: 2, positive unconditional: 4, negative: 285, negative conditional: 200, negative unconditional: 85, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 167509, positive: 144944, positive conditional: 5709, positive unconditional: 139235, negative: 16177, negative conditional: 809, negative unconditional: 15368, unknown: 6388, unknown conditional: 59, unknown unconditional: 6329] , Statistics on independence cache: Total cache size (in pairs): 6388, Positive cache size: 6315, Positive conditional cache size: 8, Positive unconditional cache size: 6307, Negative cache size: 73, Negative conditional cache size: 51, Negative unconditional cache size: 22, Eliminated conditions: 149447, Maximal queried relation: 14, Independence queries for same thread: 9789 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 941]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - CounterExampleResult [Line: 941]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L935] 0 static int top=0; VAL [top=0] [L936] 0 static unsigned int arr[(5)]; VAL [arr={32:0}, top=0] [L937] 0 pthread_mutex_t m; VAL [arr={32:0}, m={33:0}, top=0] [L938] 0 _Bool flag=(0); VAL [arr={32:0}, flag=0, m={33:0}, top=0] [L1021] 0 pthread_t id1, id2; VAL [arr={32:0}, flag=0, m={33:0}, top=0] [L1023] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [arr={32:0}, flag=0, m={33:0}, top=0] [L990] 1 int i; VAL [arr={32:0}, flag=0, m={33:0}, top=0] [L991] 1 unsigned int tmp; VAL [arr={32:0}, flag=0, m={33:0}, top=0] [L992] 1 i=0 VAL [arr={32:0}, flag=0, m={33:0}, top=0] [L992] COND TRUE 1 i<(5) VAL [arr={32:0}, flag=0, m={33:0}, top=0] [L995] 1 tmp = __VERIFIER_nondet_uint() VAL [arr={32:0}, flag=0, m={33:0}, top=0] [L23] COND FALSE 1 !(!cond) VAL [arr={32:0}, flag=0, m={33:0}, top=0] [L962] COND FALSE 1 !(top==(5)) VAL [arr={32:0}, flag=0, m={33:0}, top=0] [L954] 1 return top; VAL [arr={32:0}, flag=0, m={33:0}, top=0] [L969] 1 stack[get_top()] = x VAL [arr={32:0}, flag=0, m={33:0}, top=0] [L946] 1 top++ VAL [arr={32:0}, flag=0, m={33:0}, top=1] [L972] 1 return 0; VAL [arr={32:0}, flag=0, m={33:0}, top=1] [L997] COND FALSE 1 !(push(arr,tmp)==(-1)) VAL [arr={32:0}, flag=0, m={33:0}, top=1] [L999] 1 flag=(1) VAL [arr={32:0}, flag=1, m={33:0}, top=1] [L992] 1 i++ VAL [arr={32:0}, flag=1, m={33:0}, top=1] [L992] COND TRUE 1 i<(5) VAL [arr={32:0}, flag=1, m={33:0}, top=1] [L995] 1 tmp = __VERIFIER_nondet_uint() VAL [arr={32:0}, flag=1, m={33:0}, top=1] [L23] COND FALSE 1 !(!cond) VAL [arr={32:0}, flag=1, m={33:0}, top=1] [L962] COND FALSE 1 !(top==(5)) VAL [arr={32:0}, flag=1, m={33:0}, top=1] [L954] 1 return top; VAL [arr={32:0}, flag=1, m={33:0}, top=1] [L969] 1 stack[get_top()] = x VAL [arr={32:0}, flag=1, m={33:0}, top=1] [L946] 1 top++ VAL [arr={32:0}, flag=1, m={33:0}, top=2] [L972] 1 return 0; VAL [arr={32:0}, flag=1, m={33:0}, top=2] [L997] COND FALSE 1 !(push(arr,tmp)==(-1)) VAL [arr={32:0}, flag=1, m={33:0}, top=2] [L999] 1 flag=(1) VAL [arr={32:0}, flag=1, m={33:0}, top=2] [L992] 1 i++ VAL [arr={32:0}, flag=1, m={33:0}, top=2] [L992] COND TRUE 1 i<(5) VAL [arr={32:0}, flag=1, m={33:0}, top=2] [L995] 1 tmp = __VERIFIER_nondet_uint() VAL [arr={32:0}, flag=1, m={33:0}, top=2] [L23] COND FALSE 1 !(!cond) VAL [arr={32:0}, flag=1, m={33:0}, top=2] [L962] COND FALSE 1 !(top==(5)) VAL [arr={32:0}, flag=1, m={33:0}, top=2] [L954] 1 return top; VAL [arr={32:0}, flag=1, m={33:0}, top=2] [L969] 1 stack[get_top()] = x VAL [arr={32:0}, flag=1, m={33:0}, top=2] [L946] 1 top++ VAL [arr={32:0}, flag=1, m={33:0}, top=3] [L972] 1 return 0; VAL [arr={32:0}, flag=1, m={33:0}, top=3] [L997] COND FALSE 1 !(push(arr,tmp)==(-1)) VAL [arr={32:0}, flag=1, m={33:0}, top=3] [L999] 1 flag=(1) VAL [arr={32:0}, flag=1, m={33:0}, top=3] [L992] 1 i++ VAL [arr={32:0}, flag=1, m={33:0}, top=3] [L992] COND TRUE 1 i<(5) VAL [arr={32:0}, flag=1, m={33:0}, top=3] [L995] 1 tmp = __VERIFIER_nondet_uint() VAL [arr={32:0}, flag=1, m={33:0}, top=3] [L23] COND FALSE 1 !(!cond) VAL [arr={32:0}, flag=1, m={33:0}, top=3] [L962] COND FALSE 1 !(top==(5)) VAL [arr={32:0}, flag=1, m={33:0}, top=3] [L954] 1 return top; VAL [arr={32:0}, flag=1, m={33:0}, top=3] [L969] 1 stack[get_top()] = x VAL [arr={32:0}, flag=1, m={33:0}, top=3] [L946] 1 top++ VAL [arr={32:0}, flag=1, m={33:0}, top=4] [L972] 1 return 0; VAL [arr={32:0}, flag=1, m={33:0}, top=4] [L997] COND FALSE 1 !(push(arr,tmp)==(-1)) VAL [arr={32:0}, flag=1, m={33:0}, top=4] [L999] 1 flag=(1) VAL [arr={32:0}, flag=1, m={33:0}, top=4] [L992] 1 i++ VAL [arr={32:0}, flag=1, m={33:0}, top=4] [L992] COND TRUE 1 i<(5) VAL [arr={32:0}, flag=1, m={33:0}, top=4] [L1024] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [arr={32:0}, flag=1, m={33:0}, top=4] [L1006] 2 int i; VAL [arr={32:0}, flag=1, m={33:0}, top=4] [L1007] 2 i=0 VAL [arr={32:0}, flag=1, m={33:0}, top=4] [L1007] COND TRUE 2 i<(5) VAL [arr={32:0}, flag=1, m={33:0}, top=4] [L1010] COND TRUE 2 \read(flag) VAL [arr={32:0}, flag=1, m={33:0}, top=4] [L954] 2 return top; VAL [arr={32:0}, flag=1, m={33:0}, top=4] [L976] COND FALSE 2 !(get_top()==0) VAL [arr={32:0}, flag=1, m={33:0}, top=4] [L950] 2 top-- VAL [arr={32:0}, flag=1, m={33:0}, top=3] [L954] 2 return top; VAL [arr={32:0}, flag=1, m={33:0}, top=3] [L984] EXPR 2 stack[get_top()] VAL [arr={32:0}, flag=1, m={33:0}, top=3] [L984] 2 return stack[get_top()]; VAL [arr={32:0}, flag=1, m={33:0}, top=3] [L1012] COND FALSE 2 !(!(pop(arr)!=(-2))) VAL [arr={32:0}, flag=1, m={33:0}, top=3] [L1007] 2 i++ VAL [arr={32:0}, flag=1, m={33:0}, top=3] [L1007] COND TRUE 2 i<(5) VAL [arr={32:0}, flag=1, m={33:0}, top=3] [L1010] COND TRUE 2 \read(flag) VAL [arr={32:0}, flag=1, m={33:0}, top=3] [L954] 2 return top; VAL [arr={32:0}, flag=1, m={33:0}, top=3] [L976] COND FALSE 2 !(get_top()==0) VAL [arr={32:0}, flag=1, m={33:0}, top=3] [L950] 2 top-- VAL [arr={32:0}, flag=1, m={33:0}, top=2] [L954] 2 return top; VAL [arr={32:0}, flag=1, m={33:0}, top=2] [L984] EXPR 2 stack[get_top()] VAL [arr={32:0}, flag=1, m={33:0}, top=2] [L984] 2 return stack[get_top()]; VAL [arr={32:0}, flag=1, m={33:0}, top=2] [L1012] COND FALSE 2 !(!(pop(arr)!=(-2))) VAL [arr={32:0}, flag=1, m={33:0}, top=2] [L1007] 2 i++ VAL [arr={32:0}, flag=1, m={33:0}, top=2] [L1007] COND TRUE 2 i<(5) VAL [arr={32:0}, flag=1, m={33:0}, top=2] [L1010] COND TRUE 2 \read(flag) VAL [arr={32:0}, flag=1, m={33:0}, top=2] [L954] 2 return top; VAL [arr={32:0}, flag=1, m={33:0}, top=2] [L976] COND FALSE 2 !(get_top()==0) VAL [arr={32:0}, flag=1, m={33:0}, top=2] [L950] 2 top-- VAL [arr={32:0}, flag=1, m={33:0}, top=1] [L954] 2 return top; VAL [arr={32:0}, flag=1, m={33:0}, top=1] [L984] EXPR 2 stack[get_top()] VAL [arr={32:0}, flag=1, m={33:0}, top=1] [L984] 2 return stack[get_top()]; VAL [arr={32:0}, flag=1, m={33:0}, top=1] [L1012] COND FALSE 2 !(!(pop(arr)!=(-2))) VAL [arr={32:0}, flag=1, m={33:0}, top=1] [L1007] 2 i++ VAL [arr={32:0}, flag=1, m={33:0}, top=1] [L1007] COND TRUE 2 i<(5) VAL [arr={32:0}, flag=1, m={33:0}, top=1] [L1010] COND TRUE 2 \read(flag) VAL [arr={32:0}, flag=1, m={33:0}, top=1] [L954] 2 return top; VAL [arr={32:0}, flag=1, m={33:0}, top=1] [L976] COND FALSE 2 !(get_top()==0) VAL [arr={32:0}, flag=1, m={33:0}, top=1] [L950] 2 top-- VAL [arr={32:0}, flag=1, m={33:0}, top=0] [L954] 2 return top; VAL [arr={32:0}, flag=1, m={33:0}, top=0] [L984] EXPR 2 stack[get_top()] VAL [arr={32:0}, flag=1, m={33:0}, top=0] [L984] 2 return stack[get_top()]; VAL [arr={32:0}, flag=1, m={33:0}, top=0] [L1012] COND FALSE 2 !(!(pop(arr)!=(-2))) VAL [arr={32:0}, flag=1, m={33:0}, top=0] [L1007] 2 i++ VAL [arr={32:0}, flag=1, m={33:0}, top=0] [L1007] COND TRUE 2 i<(5) VAL [arr={32:0}, flag=1, m={33:0}, top=0] [L1010] COND TRUE 2 \read(flag) VAL [arr={32:0}, flag=1, m={33:0}, top=0] [L954] 2 return top; VAL [arr={32:0}, flag=1, m={33:0}, top=0] [L976] COND TRUE 2 get_top()==0 VAL [arr={32:0}, flag=1, m={33:0}, top=0] [L979] 2 return (-2); VAL [arr={32:0}, flag=1, m={33:0}, top=0] [L1012] COND TRUE 2 !(pop(arr)!=(-2)) VAL [arr={32:0}, flag=1, m={33:0}, top=0] [L941] 2 reach_error() VAL [arr={32:0}, flag=1, m={33:0}, top=0] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: t1Thread1of1ForFork0 with 1 thread instances CFG has 5 procedures, 248 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 21400.5ms, OverallIterations: 15, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 22.7ms, PartialOrderReductionTime: 4043.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 168, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 353.7ms SsaConstructionTime, 1299.9ms SatisfiabilityAnalysisTime, 9269.6ms InterpolantComputationTime, 4828 NumberOfCodeBlocks, 4800 NumberOfCodeBlocksAsserted, 40 NumberOfCheckSat, 4803 ConstructedInterpolants, 0 QuantifiedInterpolants, 12663 SizeOfPredicates, 84 NumberOfNonLiveVariables, 4261 ConjunctsInSsa, 104 ConjunctsInUnsatCore, 25 InterpolantComputations, 6 PerfectInterpolantSequences, 1805/5448 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 248 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 124.9ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2.8ms, PartialOrderReductionTime: 109.2ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: t2Thread1of1ForFork1 with 1 thread instances CFG has 5 procedures, 248 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 537700.4ms, OverallIterations: 24, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2.6ms, PartialOrderReductionTime: 456561.2ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 1496, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 553.0ms SsaConstructionTime, 2626.8ms SatisfiabilityAnalysisTime, 45559.4ms InterpolantComputationTime, 10467 NumberOfCodeBlocks, 10280 NumberOfCodeBlocksAsserted, 69 NumberOfCheckSat, 10082 ConstructedInterpolants, 0 QuantifiedInterpolants, 91336 SizeOfPredicates, 379 NumberOfNonLiveVariables, 9584 ConjunctsInSsa, 601 ConjunctsInUnsatCore, 42 InterpolantComputations, 7 PerfectInterpolantSequences, 5198/11985 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 incorrect! [2021-10-16 01:33:37,776 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (14)] Forceful destruction successful, exit code 0 [2021-10-16 01:33:37,974 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (13)] Ended with exit code 0 [2021-10-16 01:33:38,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2021-10-16 01:33:38,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf565bb8-24c9-4313-8484-1a9f7ec290d9/bin/ugemcutter-qKN3xmkmp7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...