./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/GopanReps-CAV2006-Fig1a.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/GopanReps-CAV2006-Fig1a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 06d48bd39a18f705c3286a70a8cdcced2226e3b2a16c7a38c85f5398d4bcad34 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Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:26:51,720 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:26:51,723 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:26:51,764 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:26:51,765 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:26:51,771 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:26:51,775 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:26:51,781 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:26:51,784 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:26:51,791 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:26:51,793 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:26:51,796 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:26:51,796 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:26:51,801 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:26:51,803 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:26:51,806 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:26:51,809 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:26:51,810 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:26:51,818 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:26:51,829 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:26:51,832 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:26:51,834 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:26:51,838 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:26:51,840 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:26:51,851 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:26:51,855 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:26:51,856 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:26:51,857 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:26:51,860 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:26:51,861 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:26:51,863 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:26:51,864 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:26:51,867 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:26:51,869 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:26:51,871 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:26:51,871 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:26:51,872 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:26:51,873 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:26:51,873 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:26:51,874 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:26:51,875 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:26:51,876 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-10-28 23:26:51,933 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:26:51,933 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:26:51,934 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:26:51,934 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:26:51,936 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:26:51,936 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:26:51,937 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:26:51,937 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:26:51,937 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:26:51,938 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:26:51,939 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:26:51,939 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:26:51,940 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:26:51,940 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:26:51,940 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-28 23:26:51,940 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:26:51,941 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:26:51,941 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:26:51,941 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:26:51,942 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:26:51,942 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:26:51,942 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:26:51,942 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:26:51,943 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:26:51,943 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:26:51,943 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:26:51,943 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:26:51,944 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:26:51,944 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:26:51,946 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_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 06d48bd39a18f705c3286a70a8cdcced2226e3b2a16c7a38c85f5398d4bcad34 [2021-10-28 23:26:52,337 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:26:52,374 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:26:52,378 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:26:52,380 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:26:52,381 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:26:52,383 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/termination-crafted-lit/GopanReps-CAV2006-Fig1a.c [2021-10-28 23:26:52,472 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/data/78cb1844e/8f8c992378df485fb35caad7cf528923/FLAG0608bb9fc [2021-10-28 23:26:53,143 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:26:53,144 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/sv-benchmarks/c/termination-crafted-lit/GopanReps-CAV2006-Fig1a.c [2021-10-28 23:26:53,158 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/data/78cb1844e/8f8c992378df485fb35caad7cf528923/FLAG0608bb9fc [2021-10-28 23:26:53,496 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/data/78cb1844e/8f8c992378df485fb35caad7cf528923 [2021-10-28 23:26:53,500 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:26:53,502 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:26:53,504 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:26:53,504 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:26:53,508 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:26:53,510 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:26:53" (1/1) ... [2021-10-28 23:26:53,511 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55660aa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:26:53, skipping insertion in model container [2021-10-28 23:26:53,512 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:26:53" (1/1) ... [2021-10-28 23:26:53,521 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:26:53,536 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:26:53,764 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:26:53,771 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:26:53,824 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:26:53,837 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:26:53,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:26:53 WrapperNode [2021-10-28 23:26:53,837 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:26:53,839 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:26:53,839 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:26:53,839 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:26:53,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:26:53" (1/1) ... [2021-10-28 23:26:53,855 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:26:53" (1/1) ... [2021-10-28 23:26:53,880 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:26:53,882 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:26:53,883 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:26:53,883 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:26:53,892 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:26:53" (1/1) ... [2021-10-28 23:26:53,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:26:53" (1/1) ... [2021-10-28 23:26:53,893 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:26:53" (1/1) ... [2021-10-28 23:26:53,893 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:26:53" (1/1) ... [2021-10-28 23:26:53,896 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:26:53" (1/1) ... [2021-10-28 23:26:53,900 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:26:53" (1/1) ... [2021-10-28 23:26:53,901 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:26:53" (1/1) ... [2021-10-28 23:26:53,903 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:26:53,904 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:26:53,904 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:26:53,905 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:26:53,912 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:26:53" (1/1) ... [2021-10-28 23:26:53,922 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:26:53,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:53,957 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:53,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:26:54,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:26:54,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:26:54,277 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:26:54,291 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-28 23:26:54,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:26:54 BoogieIcfgContainer [2021-10-28 23:26:54,294 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:26:54,296 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:26:54,297 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:26:54,301 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:26:54,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:26:53" (1/3) ... [2021-10-28 23:26:54,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@659f896e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:26:54, skipping insertion in model container [2021-10-28 23:26:54,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:26:53" (2/3) ... [2021-10-28 23:26:54,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@659f896e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:26:54, skipping insertion in model container [2021-10-28 23:26:54,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:26:54" (3/3) ... [2021-10-28 23:26:54,305 INFO L111 eAbstractionObserver]: Analyzing ICFG GopanReps-CAV2006-Fig1a.c [2021-10-28 23:26:54,328 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:26:54,329 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-10-28 23:26:54,394 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:26:54,403 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, mAutomataTypeConcurrency=FINITE_AUTOMATA, 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 [2021-10-28 23:26:54,403 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-28 23:26:54,422 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 12 states have (on average 1.75) internal successors, (21), 18 states have internal predecessors, (21), 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) [2021-10-28 23:26:54,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-28 23:26:54,428 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:26:54,429 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-28 23:26:54,430 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:26:54,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:54,459 INFO L85 PathProgramCache]: Analyzing trace with hash 963531, now seen corresponding path program 1 times [2021-10-28 23:26:54,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:26:54,471 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101361873] [2021-10-28 23:26:54,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:54,473 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:26:54,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:54,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:26:54,742 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:26:54,744 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101361873] [2021-10-28 23:26:54,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101361873] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:26:54,746 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:26:54,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:26:54,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086868312] [2021-10-28 23:26:54,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:26:54,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:26:54,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:26:54,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:26:54,784 INFO L87 Difference]: Start difference. First operand has 19 states, 12 states have (on average 1.75) internal successors, (21), 18 states have internal predecessors, (21), 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) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 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) [2021-10-28 23:26:54,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:26:54,872 INFO L93 Difference]: Finished difference Result 49 states and 57 transitions. [2021-10-28 23:26:54,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:26:54,874 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 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) Word has length 4 [2021-10-28 23:26:54,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:26:54,890 INFO L225 Difference]: With dead ends: 49 [2021-10-28 23:26:54,890 INFO L226 Difference]: Without dead ends: 23 [2021-10-28 23:26:54,896 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:26:54,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-10-28 23:26:54,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20. [2021-10-28 23:26:54,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 19 states have internal predecessors, (23), 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) [2021-10-28 23:26:54,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2021-10-28 23:26:54,942 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 4 [2021-10-28 23:26:54,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:26:54,944 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2021-10-28 23:26:54,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 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) [2021-10-28 23:26:54,945 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2021-10-28 23:26:54,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-28 23:26:54,946 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:26:54,946 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-28 23:26:54,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:26:54,947 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:26:54,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:54,954 INFO L85 PathProgramCache]: Analyzing trace with hash 963339, now seen corresponding path program 1 times [2021-10-28 23:26:54,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:26:54,955 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500540921] [2021-10-28 23:26:54,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:54,956 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:26:54,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:54,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:26:54,995 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:26:54,996 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500540921] [2021-10-28 23:26:54,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500540921] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:26:54,997 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:26:54,998 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-28 23:26:54,998 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798844875] [2021-10-28 23:26:55,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:26:55,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:26:55,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:26:55,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:26:55,006 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2021-10-28 23:26:55,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:26:55,051 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2021-10-28 23:26:55,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:26:55,052 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) Word has length 4 [2021-10-28 23:26:55,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:26:55,053 INFO L225 Difference]: With dead ends: 21 [2021-10-28 23:26:55,054 INFO L226 Difference]: Without dead ends: 20 [2021-10-28 23:26:55,056 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:26:55,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-10-28 23:26:55,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-10-28 23:26:55,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 19 states have internal predecessors, (22), 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) [2021-10-28 23:26:55,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2021-10-28 23:26:55,067 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 4 [2021-10-28 23:26:55,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:26:55,069 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2021-10-28 23:26:55,069 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2021-10-28 23:26:55,069 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2021-10-28 23:26:55,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-28 23:26:55,072 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:26:55,073 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-28 23:26:55,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 23:26:55,074 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:26:55,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:55,089 INFO L85 PathProgramCache]: Analyzing trace with hash 29863556, now seen corresponding path program 1 times [2021-10-28 23:26:55,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:26:55,090 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158790557] [2021-10-28 23:26:55,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:55,091 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:26:55,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:55,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:26:55,134 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:26:55,135 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158790557] [2021-10-28 23:26:55,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158790557] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:26:55,137 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:26:55,138 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-28 23:26:55,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488761548] [2021-10-28 23:26:55,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:26:55,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:26:55,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:26:55,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:26:55,144 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2021-10-28 23:26:55,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:26:55,179 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2021-10-28 23:26:55,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:26:55,181 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) Word has length 5 [2021-10-28 23:26:55,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:26:55,184 INFO L225 Difference]: With dead ends: 25 [2021-10-28 23:26:55,184 INFO L226 Difference]: Without dead ends: 23 [2021-10-28 23:26:55,190 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:26:55,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-10-28 23:26:55,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 18. [2021-10-28 23:26:55,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 17 states have internal predecessors, (19), 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) [2021-10-28 23:26:55,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2021-10-28 23:26:55,196 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 5 [2021-10-28 23:26:55,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:26:55,197 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2021-10-28 23:26:55,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2021-10-28 23:26:55,197 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2021-10-28 23:26:55,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-28 23:26:55,198 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:26:55,198 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:26:55,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 23:26:55,199 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:26:55,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:55,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1365891962, now seen corresponding path program 1 times [2021-10-28 23:26:55,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:26:55,201 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530623209] [2021-10-28 23:26:55,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:55,202 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:26:55,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:55,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:26:55,275 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:26:55,275 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530623209] [2021-10-28 23:26:55,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530623209] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:26:55,276 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:26:55,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-28 23:26:55,277 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196546501] [2021-10-28 23:26:55,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:26:55,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:26:55,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:26:55,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:26:55,279 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-10-28 23:26:55,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:26:55,291 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2021-10-28 23:26:55,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:26:55,292 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) Word has length 7 [2021-10-28 23:26:55,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:26:55,293 INFO L225 Difference]: With dead ends: 18 [2021-10-28 23:26:55,293 INFO L226 Difference]: Without dead ends: 17 [2021-10-28 23:26:55,294 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:26:55,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-10-28 23:26:55,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-10-28 23:26:55,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 16 states have internal predecessors, (18), 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) [2021-10-28 23:26:55,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2021-10-28 23:26:55,299 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 7 [2021-10-28 23:26:55,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:26:55,300 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2021-10-28 23:26:55,300 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-10-28 23:26:55,300 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2021-10-28 23:26:55,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-28 23:26:55,301 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:26:55,301 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:26:55,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 23:26:55,302 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:26:55,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:55,303 INFO L85 PathProgramCache]: Analyzing trace with hash -767237628, now seen corresponding path program 1 times [2021-10-28 23:26:55,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:26:55,304 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071296451] [2021-10-28 23:26:55,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:55,304 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:26:55,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:55,344 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:26:55,345 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:26:55,345 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071296451] [2021-10-28 23:26:55,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071296451] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:26:55,346 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [347554637] [2021-10-28 23:26:55,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:55,347 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:26:55,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:55,349 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:26:55,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 23:26:55,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:55,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 23:26:55,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:55,507 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:26:55,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [347554637] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:26:55,508 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:26:55,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 2] total 5 [2021-10-28 23:26:55,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115674205] [2021-10-28 23:26:55,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:26:55,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:26:55,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:26:55,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:26:55,511 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 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) [2021-10-28 23:26:55,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:26:55,596 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2021-10-28 23:26:55,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:26:55,597 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 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) Word has length 10 [2021-10-28 23:26:55,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:26:55,598 INFO L225 Difference]: With dead ends: 35 [2021-10-28 23:26:55,599 INFO L226 Difference]: Without dead ends: 24 [2021-10-28 23:26:55,599 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:26:55,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-10-28 23:26:55,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2021-10-28 23:26:55,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 20 states have (on average 1.2) internal successors, (24), 22 states have internal predecessors, (24), 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) [2021-10-28 23:26:55,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2021-10-28 23:26:55,605 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 10 [2021-10-28 23:26:55,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:26:55,606 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2021-10-28 23:26:55,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 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) [2021-10-28 23:26:55,606 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2021-10-28 23:26:55,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-28 23:26:55,607 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:26:55,607 INFO L513 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1] [2021-10-28 23:26:55,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:55,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:26:55,831 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:26:55,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:55,832 INFO L85 PathProgramCache]: Analyzing trace with hash -907820675, now seen corresponding path program 2 times [2021-10-28 23:26:55,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:26:55,832 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618258585] [2021-10-28 23:26:55,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:55,833 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:26:55,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:55,877 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-28 23:26:55,878 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:26:55,878 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618258585] [2021-10-28 23:26:55,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618258585] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:26:55,879 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:26:55,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:26:55,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439891453] [2021-10-28 23:26:55,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:26:55,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:26:55,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:26:55,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:26:55,882 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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) [2021-10-28 23:26:55,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:26:55,909 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2021-10-28 23:26:55,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:26:55,910 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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) Word has length 16 [2021-10-28 23:26:55,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:26:55,912 INFO L225 Difference]: With dead ends: 32 [2021-10-28 23:26:55,912 INFO L226 Difference]: Without dead ends: 30 [2021-10-28 23:26:55,912 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:26:55,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-10-28 23:26:55,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 27. [2021-10-28 23:26:55,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 25 states have (on average 1.2) internal successors, (30), 26 states have internal predecessors, (30), 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) [2021-10-28 23:26:55,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2021-10-28 23:26:55,919 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 16 [2021-10-28 23:26:55,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:26:55,920 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2021-10-28 23:26:55,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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) [2021-10-28 23:26:55,921 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2021-10-28 23:26:55,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-28 23:26:55,922 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:26:55,922 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1] [2021-10-28 23:26:55,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-28 23:26:55,923 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:26:55,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:55,923 INFO L85 PathProgramCache]: Analyzing trace with hash -907820867, now seen corresponding path program 1 times [2021-10-28 23:26:55,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:26:55,924 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738887659] [2021-10-28 23:26:55,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:55,948 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:26:55,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:56,079 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:26:56,079 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:26:56,080 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738887659] [2021-10-28 23:26:56,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738887659] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:26:56,080 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1007675403] [2021-10-28 23:26:56,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:56,081 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:26:56,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:56,082 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:26:56,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-28 23:26:56,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:56,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:26:56,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:56,235 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:26:56,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1007675403] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:26:56,237 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:26:56,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-10-28 23:26:56,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624015737] [2021-10-28 23:26:56,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:26:56,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:26:56,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:26:56,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:26:56,243 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2021-10-28 23:26:56,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:26:56,316 INFO L93 Difference]: Finished difference Result 60 states and 69 transitions. [2021-10-28 23:26:56,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:26:56,317 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) Word has length 16 [2021-10-28 23:26:56,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:26:56,319 INFO L225 Difference]: With dead ends: 60 [2021-10-28 23:26:56,319 INFO L226 Difference]: Without dead ends: 59 [2021-10-28 23:26:56,320 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:26:56,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2021-10-28 23:26:56,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 47. [2021-10-28 23:26:56,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 45 states have (on average 1.2444444444444445) internal successors, (56), 46 states have internal predecessors, (56), 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) [2021-10-28 23:26:56,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 56 transitions. [2021-10-28 23:26:56,349 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 56 transitions. Word has length 16 [2021-10-28 23:26:56,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:26:56,350 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 56 transitions. [2021-10-28 23:26:56,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2021-10-28 23:26:56,351 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 56 transitions. [2021-10-28 23:26:56,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-28 23:26:56,352 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:26:56,352 INFO L513 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2021-10-28 23:26:56,397 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:56,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-10-28 23:26:56,568 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:26:56,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:56,569 INFO L85 PathProgramCache]: Analyzing trace with hash -537305888, now seen corresponding path program 1 times [2021-10-28 23:26:56,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:26:56,570 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098718462] [2021-10-28 23:26:56,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:56,570 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:26:56,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:56,615 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 23:26:56,615 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:26:56,616 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098718462] [2021-10-28 23:26:56,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098718462] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:26:56,616 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1836422209] [2021-10-28 23:26:56,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:56,617 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:26:56,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:56,619 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:26:56,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-28 23:26:56,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:56,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:26:56,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:56,814 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:26:56,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1836422209] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:26:56,814 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:26:56,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2021-10-28 23:26:56,815 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392032963] [2021-10-28 23:26:56,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 23:26:56,821 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:26:56,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 23:26:56,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:26:56,824 INFO L87 Difference]: Start difference. First operand 47 states and 56 transitions. Second operand has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 7 states have internal predecessors, (35), 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) [2021-10-28 23:26:56,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:26:56,883 INFO L93 Difference]: Finished difference Result 75 states and 91 transitions. [2021-10-28 23:26:56,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 23:26:56,884 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 7 states have internal predecessors, (35), 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) Word has length 18 [2021-10-28 23:26:56,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:26:56,886 INFO L225 Difference]: With dead ends: 75 [2021-10-28 23:26:56,886 INFO L226 Difference]: Without dead ends: 40 [2021-10-28 23:26:56,887 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:26:56,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-10-28 23:26:56,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2021-10-28 23:26:56,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 37 states have (on average 1.1081081081081081) internal successors, (41), 38 states have internal predecessors, (41), 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) [2021-10-28 23:26:56,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2021-10-28 23:26:56,906 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 18 [2021-10-28 23:26:56,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:26:56,910 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2021-10-28 23:26:56,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 7 states have internal predecessors, (35), 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) [2021-10-28 23:26:56,911 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2021-10-28 23:26:56,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-28 23:26:56,914 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:26:56,914 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1] [2021-10-28 23:26:56,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:57,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-10-28 23:26:57,140 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:26:57,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:57,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1586405002, now seen corresponding path program 2 times [2021-10-28 23:26:57,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:26:57,141 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998673203] [2021-10-28 23:26:57,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:57,141 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:26:57,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:57,236 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:26:57,237 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:26:57,237 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998673203] [2021-10-28 23:26:57,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998673203] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:26:57,238 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2041885739] [2021-10-28 23:26:57,238 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:26:57,238 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:26:57,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:57,243 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:26:57,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-28 23:26:57,305 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 23:26:57,305 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:26:57,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 23:26:57,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:57,407 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:26:57,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2041885739] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:26:57,408 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:26:57,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-10-28 23:26:57,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651486305] [2021-10-28 23:26:57,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:26:57,409 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:26:57,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:26:57,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:26:57,410 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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) [2021-10-28 23:26:57,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:26:57,444 INFO L93 Difference]: Finished difference Result 42 states and 44 transitions. [2021-10-28 23:26:57,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:26:57,445 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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) Word has length 22 [2021-10-28 23:26:57,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:26:57,446 INFO L225 Difference]: With dead ends: 42 [2021-10-28 23:26:57,446 INFO L226 Difference]: Without dead ends: 41 [2021-10-28 23:26:57,447 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:26:57,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-10-28 23:26:57,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 39. [2021-10-28 23:26:57,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 37 states have (on average 1.1081081081081081) internal successors, (41), 38 states have internal predecessors, (41), 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) [2021-10-28 23:26:57,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2021-10-28 23:26:57,452 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 22 [2021-10-28 23:26:57,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:26:57,453 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2021-10-28 23:26:57,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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) [2021-10-28 23:26:57,454 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2021-10-28 23:26:57,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-28 23:26:57,455 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:26:57,455 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 1, 1] [2021-10-28 23:26:57,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:57,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:26:57,683 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:26:57,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:57,684 INFO L85 PathProgramCache]: Analyzing trace with hash -89664657, now seen corresponding path program 3 times [2021-10-28 23:26:57,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:26:57,684 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943564048] [2021-10-28 23:26:57,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:57,685 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:26:57,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:57,797 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:26:57,797 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:26:57,797 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943564048] [2021-10-28 23:26:57,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943564048] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:26:57,798 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [589948010] [2021-10-28 23:26:57,798 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 23:26:57,798 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:26:57,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:57,807 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:26:57,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-28 23:26:57,889 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-10-28 23:26:57,889 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:26:57,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:26:57,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:58,044 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:26:58,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [589948010] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:26:58,045 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:26:58,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-10-28 23:26:58,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892891099] [2021-10-28 23:26:58,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 23:26:58,046 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:26:58,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 23:26:58,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:26:58,047 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 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) [2021-10-28 23:26:58,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:26:58,114 INFO L93 Difference]: Finished difference Result 107 states and 120 transitions. [2021-10-28 23:26:58,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 23:26:58,115 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 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) Word has length 28 [2021-10-28 23:26:58,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:26:58,116 INFO L225 Difference]: With dead ends: 107 [2021-10-28 23:26:58,116 INFO L226 Difference]: Without dead ends: 106 [2021-10-28 23:26:58,117 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:26:58,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2021-10-28 23:26:58,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 96. [2021-10-28 23:26:58,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 94 states have (on average 1.1595744680851063) internal successors, (109), 95 states have internal predecessors, (109), 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) [2021-10-28 23:26:58,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 109 transitions. [2021-10-28 23:26:58,134 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 109 transitions. Word has length 28 [2021-10-28 23:26:58,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:26:58,134 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 109 transitions. [2021-10-28 23:26:58,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 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) [2021-10-28 23:26:58,135 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 109 transitions. [2021-10-28 23:26:58,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-28 23:26:58,136 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:26:58,136 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 1, 1] [2021-10-28 23:26:58,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:58,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:26:58,364 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:26:58,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:58,364 INFO L85 PathProgramCache]: Analyzing trace with hash 661989032, now seen corresponding path program 4 times [2021-10-28 23:26:58,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:26:58,364 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755183718] [2021-10-28 23:26:58,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:58,365 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:26:58,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:58,442 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:26:58,443 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:26:58,443 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755183718] [2021-10-28 23:26:58,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755183718] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:26:58,443 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1798778802] [2021-10-28 23:26:58,443 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 23:26:58,444 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:26:58,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:58,445 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:26:58,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-28 23:26:58,531 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 23:26:58,531 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:26:58,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 23:26:58,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:58,659 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:26:58,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1798778802] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:26:58,660 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:26:58,660 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-10-28 23:26:58,660 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062880723] [2021-10-28 23:26:58,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 23:26:58,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:26:58,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:26:58,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:26:58,662 INFO L87 Difference]: Start difference. First operand 96 states and 109 transitions. Second operand has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 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) [2021-10-28 23:26:58,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:26:58,747 INFO L93 Difference]: Finished difference Result 183 states and 210 transitions. [2021-10-28 23:26:58,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:26:58,748 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 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) Word has length 34 [2021-10-28 23:26:58,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:26:58,750 INFO L225 Difference]: With dead ends: 183 [2021-10-28 23:26:58,750 INFO L226 Difference]: Without dead ends: 182 [2021-10-28 23:26:58,750 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:26:58,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2021-10-28 23:26:58,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 111. [2021-10-28 23:26:58,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 109 states have (on average 1.165137614678899) internal successors, (127), 110 states have internal predecessors, (127), 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) [2021-10-28 23:26:58,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 127 transitions. [2021-10-28 23:26:58,760 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 127 transitions. Word has length 34 [2021-10-28 23:26:58,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:26:58,761 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 127 transitions. [2021-10-28 23:26:58,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 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) [2021-10-28 23:26:58,761 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 127 transitions. [2021-10-28 23:26:58,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-28 23:26:58,763 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:26:58,763 INFO L513 BasicCegarLoop]: trace histogram [6, 5, 5, 4, 4, 4, 2, 2, 2, 1, 1] [2021-10-28 23:26:58,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:58,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:26:58,980 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:26:58,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:58,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1050459643, now seen corresponding path program 2 times [2021-10-28 23:26:58,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:26:58,981 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925039178] [2021-10-28 23:26:58,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:58,981 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:26:58,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:59,059 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 22 proven. 44 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-28 23:26:59,060 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:26:59,060 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925039178] [2021-10-28 23:26:59,060 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925039178] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:26:59,060 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2143732195] [2021-10-28 23:26:59,061 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:26:59,061 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:26:59,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:59,073 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:26:59,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-28 23:26:59,170 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 23:26:59,171 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:26:59,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:26:59,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:59,321 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 22 proven. 44 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-28 23:26:59,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2143732195] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:26:59,322 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:26:59,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-10-28 23:26:59,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225820408] [2021-10-28 23:26:59,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 23:26:59,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:26:59,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 23:26:59,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:26:59,324 INFO L87 Difference]: Start difference. First operand 111 states and 127 transitions. Second operand has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 6 states have internal predecessors, (34), 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) [2021-10-28 23:26:59,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:26:59,379 INFO L93 Difference]: Finished difference Result 211 states and 244 transitions. [2021-10-28 23:26:59,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 23:26:59,380 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 6 states have internal predecessors, (34), 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) Word has length 36 [2021-10-28 23:26:59,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:26:59,384 INFO L225 Difference]: With dead ends: 211 [2021-10-28 23:26:59,384 INFO L226 Difference]: Without dead ends: 121 [2021-10-28 23:26:59,386 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:26:59,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2021-10-28 23:26:59,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 117. [2021-10-28 23:26:59,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 115 states have (on average 1.1565217391304348) internal successors, (133), 116 states have internal predecessors, (133), 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) [2021-10-28 23:26:59,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 133 transitions. [2021-10-28 23:26:59,409 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 133 transitions. Word has length 36 [2021-10-28 23:26:59,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:26:59,409 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 133 transitions. [2021-10-28 23:26:59,409 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 6 states have internal predecessors, (34), 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) [2021-10-28 23:26:59,425 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 133 transitions. [2021-10-28 23:26:59,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-10-28 23:26:59,427 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:26:59,427 INFO L513 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 1, 1] [2021-10-28 23:26:59,501 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:59,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:26:59,655 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:26:59,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:59,656 INFO L85 PathProgramCache]: Analyzing trace with hash 855337761, now seen corresponding path program 5 times [2021-10-28 23:26:59,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:26:59,656 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122307304] [2021-10-28 23:26:59,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:59,657 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:26:59,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:59,760 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:26:59,761 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:26:59,761 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122307304] [2021-10-28 23:26:59,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122307304] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:26:59,761 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [707130965] [2021-10-28 23:26:59,762 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 23:26:59,762 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:26:59,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:59,767 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:26:59,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-28 23:26:59,891 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-10-28 23:26:59,891 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:26:59,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 23:26:59,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:27:00,038 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:27:00,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [707130965] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:00,039 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:27:00,039 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2021-10-28 23:27:00,039 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570995887] [2021-10-28 23:27:00,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 23:27:00,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:27:00,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 23:27:00,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:27:00,043 INFO L87 Difference]: Start difference. First operand 117 states and 133 transitions. Second operand has 9 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 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) [2021-10-28 23:27:00,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:27:00,121 INFO L93 Difference]: Finished difference Result 221 states and 254 transitions. [2021-10-28 23:27:00,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 23:27:00,122 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 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) Word has length 40 [2021-10-28 23:27:00,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:27:00,124 INFO L225 Difference]: With dead ends: 221 [2021-10-28 23:27:00,124 INFO L226 Difference]: Without dead ends: 220 [2021-10-28 23:27:00,125 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:27:00,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2021-10-28 23:27:00,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 132. [2021-10-28 23:27:00,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 130 states have (on average 1.1615384615384616) internal successors, (151), 131 states have internal predecessors, (151), 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) [2021-10-28 23:27:00,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 151 transitions. [2021-10-28 23:27:00,137 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 151 transitions. Word has length 40 [2021-10-28 23:27:00,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:27:00,138 INFO L470 AbstractCegarLoop]: Abstraction has 132 states and 151 transitions. [2021-10-28 23:27:00,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 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) [2021-10-28 23:27:00,138 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 151 transitions. [2021-10-28 23:27:00,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-10-28 23:27:00,142 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:27:00,142 INFO L513 BasicCegarLoop]: trace histogram [7, 6, 6, 5, 5, 5, 2, 2, 2, 1, 1] [2021-10-28 23:27:00,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-28 23:27:00,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-10-28 23:27:00,355 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:27:00,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:27:00,356 INFO L85 PathProgramCache]: Analyzing trace with hash 74075198, now seen corresponding path program 3 times [2021-10-28 23:27:00,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:27:00,356 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918552920] [2021-10-28 23:27:00,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:27:00,356 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:27:00,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:27:00,463 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 27 proven. 70 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-28 23:27:00,463 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:27:00,463 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918552920] [2021-10-28 23:27:00,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918552920] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:00,464 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1242739045] [2021-10-28 23:27:00,464 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 23:27:00,464 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:27:00,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:27:00,468 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:27:00,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-28 23:27:00,615 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-10-28 23:27:00,615 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:27:00,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:27:00,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:27:00,800 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 48 proven. 8 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-10-28 23:27:00,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1242739045] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:00,801 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:27:00,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 11 [2021-10-28 23:27:00,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080287397] [2021-10-28 23:27:00,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 23:27:00,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:27:00,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 23:27:00,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-10-28 23:27:00,803 INFO L87 Difference]: Start difference. First operand 132 states and 151 transitions. Second operand has 11 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 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) [2021-10-28 23:27:00,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:27:00,878 INFO L93 Difference]: Finished difference Result 169 states and 194 transitions. [2021-10-28 23:27:00,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 23:27:00,879 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 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) Word has length 42 [2021-10-28 23:27:00,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:27:00,880 INFO L225 Difference]: With dead ends: 169 [2021-10-28 23:27:00,880 INFO L226 Difference]: Without dead ends: 64 [2021-10-28 23:27:00,881 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-10-28 23:27:00,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-10-28 23:27:00,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 63. [2021-10-28 23:27:00,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 61 states have (on average 1.0819672131147542) internal successors, (66), 62 states have internal predecessors, (66), 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) [2021-10-28 23:27:00,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 66 transitions. [2021-10-28 23:27:00,885 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 66 transitions. Word has length 42 [2021-10-28 23:27:00,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:27:00,886 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 66 transitions. [2021-10-28 23:27:00,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 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) [2021-10-28 23:27:00,887 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 66 transitions. [2021-10-28 23:27:00,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-10-28 23:27:00,888 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:27:00,888 INFO L513 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 1, 1] [2021-10-28 23:27:00,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-28 23:27:01,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-10-28 23:27:01,103 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:27:01,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:27:01,104 INFO L85 PathProgramCache]: Analyzing trace with hash 714125530, now seen corresponding path program 6 times [2021-10-28 23:27:01,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:27:01,104 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335687220] [2021-10-28 23:27:01,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:27:01,105 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:27:01,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:27:01,237 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:27:01,237 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:27:01,237 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335687220] [2021-10-28 23:27:01,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335687220] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:01,238 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2085736501] [2021-10-28 23:27:01,238 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-28 23:27:01,238 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:27:01,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:27:01,245 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:27:01,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-28 23:27:01,390 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-10-28 23:27:01,390 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:27:01,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 23:27:01,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:27:01,561 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:27:01,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2085736501] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:01,562 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:27:01,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2021-10-28 23:27:01,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465645207] [2021-10-28 23:27:01,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 23:27:01,566 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:27:01,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 23:27:01,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:27:01,568 INFO L87 Difference]: Start difference. First operand 63 states and 66 transitions. Second operand has 10 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 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) [2021-10-28 23:27:01,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:27:01,660 INFO L93 Difference]: Finished difference Result 216 states and 245 transitions. [2021-10-28 23:27:01,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 23:27:01,661 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 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) Word has length 46 [2021-10-28 23:27:01,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:27:01,663 INFO L225 Difference]: With dead ends: 216 [2021-10-28 23:27:01,663 INFO L226 Difference]: Without dead ends: 215 [2021-10-28 23:27:01,667 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:27:01,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2021-10-28 23:27:01,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 198. [2021-10-28 23:27:01,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 196 states have (on average 1.153061224489796) internal successors, (226), 197 states have internal predecessors, (226), 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) [2021-10-28 23:27:01,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 226 transitions. [2021-10-28 23:27:01,678 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 226 transitions. Word has length 46 [2021-10-28 23:27:01,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:27:01,678 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 226 transitions. [2021-10-28 23:27:01,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 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) [2021-10-28 23:27:01,679 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 226 transitions. [2021-10-28 23:27:01,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-10-28 23:27:01,681 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:27:01,682 INFO L513 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 1, 1] [2021-10-28 23:27:01,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-28 23:27:01,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-10-28 23:27:01,895 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:27:01,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:27:01,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1497430061, now seen corresponding path program 7 times [2021-10-28 23:27:01,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:27:01,896 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920464005] [2021-10-28 23:27:01,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:27:01,897 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:27:01,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:27:02,023 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 192 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:27:02,023 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:27:02,024 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920464005] [2021-10-28 23:27:02,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920464005] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:02,024 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1061709717] [2021-10-28 23:27:02,024 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-28 23:27:02,024 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:27:02,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:27:02,027 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:27:02,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-28 23:27:02,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:27:02,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 23:27:02,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:27:02,392 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 192 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:27:02,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1061709717] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:02,393 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:27:02,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2021-10-28 23:27:02,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821102903] [2021-10-28 23:27:02,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 23:27:02,394 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:27:02,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 23:27:02,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-10-28 23:27:02,396 INFO L87 Difference]: Start difference. First operand 198 states and 226 transitions. Second operand has 11 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 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) [2021-10-28 23:27:02,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:27:02,545 INFO L93 Difference]: Finished difference Result 378 states and 436 transitions. [2021-10-28 23:27:02,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 23:27:02,546 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 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) Word has length 52 [2021-10-28 23:27:02,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:27:02,548 INFO L225 Difference]: With dead ends: 378 [2021-10-28 23:27:02,549 INFO L226 Difference]: Without dead ends: 377 [2021-10-28 23:27:02,551 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-10-28 23:27:02,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2021-10-28 23:27:02,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 219. [2021-10-28 23:27:02,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 217 states have (on average 1.1566820276497696) internal successors, (251), 218 states have internal predecessors, (251), 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) [2021-10-28 23:27:02,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 251 transitions. [2021-10-28 23:27:02,568 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 251 transitions. Word has length 52 [2021-10-28 23:27:02,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:27:02,568 INFO L470 AbstractCegarLoop]: Abstraction has 219 states and 251 transitions. [2021-10-28 23:27:02,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 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) [2021-10-28 23:27:02,569 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 251 transitions. [2021-10-28 23:27:02,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-10-28 23:27:02,576 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:27:02,577 INFO L513 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 1, 1] [2021-10-28 23:27:02,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-10-28 23:27:02,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-10-28 23:27:02,799 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:27:02,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:27:02,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1807450100, now seen corresponding path program 8 times [2021-10-28 23:27:02,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:27:02,800 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267591254] [2021-10-28 23:27:02,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:27:02,800 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:27:02,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:27:02,936 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:27:02,936 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:27:02,936 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267591254] [2021-10-28 23:27:02,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267591254] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:02,937 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1485589755] [2021-10-28 23:27:02,937 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:27:02,937 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:27:02,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:27:02,938 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:27:02,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-28 23:27:03,125 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 23:27:03,125 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:27:03,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 23:27:03,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:27:03,371 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:27:03,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1485589755] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:03,371 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:27:03,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2021-10-28 23:27:03,372 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292044474] [2021-10-28 23:27:03,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 23:27:03,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:27:03,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 23:27:03,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-10-28 23:27:03,377 INFO L87 Difference]: Start difference. First operand 219 states and 251 transitions. Second operand has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 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) [2021-10-28 23:27:03,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:27:03,493 INFO L93 Difference]: Finished difference Result 422 states and 488 transitions. [2021-10-28 23:27:03,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 23:27:03,493 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 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) Word has length 58 [2021-10-28 23:27:03,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:27:03,497 INFO L225 Difference]: With dead ends: 422 [2021-10-28 23:27:03,497 INFO L226 Difference]: Without dead ends: 421 [2021-10-28 23:27:03,498 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-10-28 23:27:03,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2021-10-28 23:27:03,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 240. [2021-10-28 23:27:03,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 238 states have (on average 1.1596638655462186) internal successors, (276), 239 states have internal predecessors, (276), 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) [2021-10-28 23:27:03,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 276 transitions. [2021-10-28 23:27:03,512 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 276 transitions. Word has length 58 [2021-10-28 23:27:03,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:27:03,513 INFO L470 AbstractCegarLoop]: Abstraction has 240 states and 276 transitions. [2021-10-28 23:27:03,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 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) [2021-10-28 23:27:03,513 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 276 transitions. [2021-10-28 23:27:03,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-10-28 23:27:03,514 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:27:03,515 INFO L513 BasicCegarLoop]: trace histogram [10, 9, 9, 7, 7, 7, 3, 3, 3, 1, 1] [2021-10-28 23:27:03,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-10-28 23:27:03,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-10-28 23:27:03,743 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:27:03,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:27:03,744 INFO L85 PathProgramCache]: Analyzing trace with hash -410764061, now seen corresponding path program 4 times [2021-10-28 23:27:03,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:27:03,744 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053569529] [2021-10-28 23:27:03,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:27:03,745 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:27:03,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:27:03,854 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 67 proven. 140 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-28 23:27:03,855 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:27:03,855 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053569529] [2021-10-28 23:27:03,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053569529] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:03,855 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2061504342] [2021-10-28 23:27:03,856 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 23:27:03,856 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:27:03,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:27:03,857 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:27:03,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-28 23:27:04,051 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 23:27:04,052 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:27:04,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 23:27:04,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:27:04,261 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 67 proven. 140 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-28 23:27:04,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2061504342] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:04,262 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:27:04,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2021-10-28 23:27:04,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14277068] [2021-10-28 23:27:04,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 23:27:04,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:27:04,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 23:27:04,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:27:04,264 INFO L87 Difference]: Start difference. First operand 240 states and 276 transitions. Second operand has 10 states, 10 states have (on average 5.2) internal successors, (52), 9 states have internal predecessors, (52), 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) [2021-10-28 23:27:04,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:27:04,314 INFO L93 Difference]: Finished difference Result 451 states and 524 transitions. [2021-10-28 23:27:04,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 23:27:04,315 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 9 states have internal predecessors, (52), 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) Word has length 60 [2021-10-28 23:27:04,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:27:04,317 INFO L225 Difference]: With dead ends: 451 [2021-10-28 23:27:04,317 INFO L226 Difference]: Without dead ends: 250 [2021-10-28 23:27:04,318 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:27:04,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2021-10-28 23:27:04,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 246. [2021-10-28 23:27:04,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 244 states have (on average 1.1557377049180328) internal successors, (282), 245 states have internal predecessors, (282), 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) [2021-10-28 23:27:04,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 282 transitions. [2021-10-28 23:27:04,330 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 282 transitions. Word has length 60 [2021-10-28 23:27:04,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:27:04,331 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 282 transitions. [2021-10-28 23:27:04,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 9 states have internal predecessors, (52), 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) [2021-10-28 23:27:04,331 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 282 transitions. [2021-10-28 23:27:04,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-10-28 23:27:04,332 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:27:04,333 INFO L513 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 1, 1] [2021-10-28 23:27:04,370 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-10-28 23:27:04,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:27:04,547 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:27:04,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:27:04,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1024665989, now seen corresponding path program 9 times [2021-10-28 23:27:04,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:27:04,548 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837947080] [2021-10-28 23:27:04,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:27:04,548 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:27:04,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:27:04,704 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:27:04,704 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:27:04,704 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837947080] [2021-10-28 23:27:04,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837947080] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:04,705 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [471269679] [2021-10-28 23:27:04,705 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 23:27:04,705 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:27:04,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:27:04,711 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:27:04,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-10-28 23:27:04,934 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2021-10-28 23:27:04,934 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:27:04,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-28 23:27:04,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:27:05,186 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:27:05,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [471269679] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:05,186 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:27:05,186 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2021-10-28 23:27:05,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116358897] [2021-10-28 23:27:05,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-28 23:27:05,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:27:05,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-28 23:27:05,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-10-28 23:27:05,188 INFO L87 Difference]: Start difference. First operand 246 states and 282 transitions. Second operand has 13 states, 12 states have (on average 5.333333333333333) internal successors, (64), 12 states have internal predecessors, (64), 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) [2021-10-28 23:27:05,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:27:05,301 INFO L93 Difference]: Finished difference Result 472 states and 546 transitions. [2021-10-28 23:27:05,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 23:27:05,301 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.333333333333333) internal successors, (64), 12 states have internal predecessors, (64), 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) Word has length 64 [2021-10-28 23:27:05,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:27:05,305 INFO L225 Difference]: With dead ends: 472 [2021-10-28 23:27:05,306 INFO L226 Difference]: Without dead ends: 471 [2021-10-28 23:27:05,306 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-10-28 23:27:05,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2021-10-28 23:27:05,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 267. [2021-10-28 23:27:05,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 265 states have (on average 1.1584905660377358) internal successors, (307), 266 states have internal predecessors, (307), 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) [2021-10-28 23:27:05,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 307 transitions. [2021-10-28 23:27:05,323 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 307 transitions. Word has length 64 [2021-10-28 23:27:05,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:27:05,324 INFO L470 AbstractCegarLoop]: Abstraction has 267 states and 307 transitions. [2021-10-28 23:27:05,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.333333333333333) internal successors, (64), 12 states have internal predecessors, (64), 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) [2021-10-28 23:27:05,324 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 307 transitions. [2021-10-28 23:27:05,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-10-28 23:27:05,325 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:27:05,325 INFO L513 BasicCegarLoop]: trace histogram [11, 10, 10, 8, 8, 8, 3, 3, 3, 1, 1] [2021-10-28 23:27:05,369 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-10-28 23:27:05,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:27:05,547 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:27:05,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:27:05,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1756468196, now seen corresponding path program 5 times [2021-10-28 23:27:05,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:27:05,548 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710059108] [2021-10-28 23:27:05,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:27:05,548 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:27:05,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:27:05,664 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 76 proven. 184 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-28 23:27:05,665 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:27:05,665 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710059108] [2021-10-28 23:27:05,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710059108] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:05,665 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1813646675] [2021-10-28 23:27:05,665 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 23:27:05,665 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:27:05,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:27:05,666 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:27:05,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-10-28 23:27:05,901 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2021-10-28 23:27:05,902 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:27:05,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 23:27:05,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:27:06,191 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 76 proven. 184 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-28 23:27:06,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1813646675] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:06,191 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:27:06,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2021-10-28 23:27:06,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400032555] [2021-10-28 23:27:06,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 23:27:06,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:27:06,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 23:27:06,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-10-28 23:27:06,194 INFO L87 Difference]: Start difference. First operand 267 states and 307 transitions. Second operand has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 10 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) [2021-10-28 23:27:06,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:27:06,260 INFO L93 Difference]: Finished difference Result 499 states and 580 transitions. [2021-10-28 23:27:06,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 23:27:06,261 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 10 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) Word has length 66 [2021-10-28 23:27:06,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:27:06,266 INFO L225 Difference]: With dead ends: 499 [2021-10-28 23:27:06,266 INFO L226 Difference]: Without dead ends: 277 [2021-10-28 23:27:06,268 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-10-28 23:27:06,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2021-10-28 23:27:06,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 273. [2021-10-28 23:27:06,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 271 states have (on average 1.154981549815498) internal successors, (313), 272 states have internal predecessors, (313), 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) [2021-10-28 23:27:06,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 313 transitions. [2021-10-28 23:27:06,291 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 313 transitions. Word has length 66 [2021-10-28 23:27:06,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:27:06,291 INFO L470 AbstractCegarLoop]: Abstraction has 273 states and 313 transitions. [2021-10-28 23:27:06,292 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 10 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) [2021-10-28 23:27:06,292 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 313 transitions. [2021-10-28 23:27:06,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-10-28 23:27:06,293 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:27:06,293 INFO L513 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 1, 1] [2021-10-28 23:27:06,343 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-10-28 23:27:06,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:27:06,519 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:27:06,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:27:06,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1856957378, now seen corresponding path program 10 times [2021-10-28 23:27:06,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:27:06,519 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590366724] [2021-10-28 23:27:06,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:27:06,519 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:27:06,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:27:06,665 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 0 proven. 363 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:27:06,665 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:27:06,665 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590366724] [2021-10-28 23:27:06,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590366724] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:06,665 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79818085] [2021-10-28 23:27:06,665 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 23:27:06,665 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:27:06,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:27:06,666 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:27:06,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-10-28 23:27:06,918 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 23:27:06,919 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:27:06,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 23:27:06,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:27:07,187 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 0 proven. 363 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:27:07,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [79818085] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:07,187 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:27:07,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 12 [2021-10-28 23:27:07,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825488074] [2021-10-28 23:27:07,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-28 23:27:07,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:27:07,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-28 23:27:07,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2021-10-28 23:27:07,192 INFO L87 Difference]: Start difference. First operand 273 states and 313 transitions. Second operand has 14 states, 13 states have (on average 5.384615384615385) internal successors, (70), 13 states have internal predecessors, (70), 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) [2021-10-28 23:27:07,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:27:07,315 INFO L93 Difference]: Finished difference Result 522 states and 604 transitions. [2021-10-28 23:27:07,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-28 23:27:07,316 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.384615384615385) internal successors, (70), 13 states have internal predecessors, (70), 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) Word has length 70 [2021-10-28 23:27:07,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:27:07,321 INFO L225 Difference]: With dead ends: 522 [2021-10-28 23:27:07,321 INFO L226 Difference]: Without dead ends: 521 [2021-10-28 23:27:07,322 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2021-10-28 23:27:07,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2021-10-28 23:27:07,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 294. [2021-10-28 23:27:07,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 292 states have (on average 1.1575342465753424) internal successors, (338), 293 states have internal predecessors, (338), 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) [2021-10-28 23:27:07,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 338 transitions. [2021-10-28 23:27:07,354 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 338 transitions. Word has length 70 [2021-10-28 23:27:07,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:27:07,354 INFO L470 AbstractCegarLoop]: Abstraction has 294 states and 338 transitions. [2021-10-28 23:27:07,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.384615384615385) internal successors, (70), 13 states have internal predecessors, (70), 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) [2021-10-28 23:27:07,355 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 338 transitions. [2021-10-28 23:27:07,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-10-28 23:27:07,360 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:27:07,360 INFO L513 BasicCegarLoop]: trace histogram [12, 11, 11, 9, 9, 9, 3, 3, 3, 1, 1] [2021-10-28 23:27:07,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-10-28 23:27:07,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:27:07,587 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:27:07,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:27:07,588 INFO L85 PathProgramCache]: Analyzing trace with hash -742617963, now seen corresponding path program 6 times [2021-10-28 23:27:07,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:27:07,588 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517942886] [2021-10-28 23:27:07,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:27:07,588 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:27:07,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:27:07,712 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 85 proven. 234 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-28 23:27:07,713 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:27:07,713 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517942886] [2021-10-28 23:27:07,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517942886] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:07,713 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1276674090] [2021-10-28 23:27:07,713 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-28 23:27:07,714 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:27:07,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:27:07,715 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:27:07,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-10-28 23:27:07,985 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-10-28 23:27:07,985 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:27:07,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 23:27:07,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:27:08,268 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 126 proven. 21 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2021-10-28 23:27:08,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1276674090] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:08,269 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:27:08,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5] total 16 [2021-10-28 23:27:08,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911194297] [2021-10-28 23:27:08,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-28 23:27:08,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:27:08,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-28 23:27:08,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2021-10-28 23:27:08,271 INFO L87 Difference]: Start difference. First operand 294 states and 338 transitions. Second operand has 16 states, 16 states have (on average 5.8125) internal successors, (93), 16 states have internal predecessors, (93), 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) [2021-10-28 23:27:08,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:27:08,378 INFO L93 Difference]: Finished difference Result 615 states and 724 transitions. [2021-10-28 23:27:08,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-28 23:27:08,379 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.8125) internal successors, (93), 16 states have internal predecessors, (93), 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) Word has length 72 [2021-10-28 23:27:08,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:27:08,385 INFO L225 Difference]: With dead ends: 615 [2021-10-28 23:27:08,385 INFO L226 Difference]: Without dead ends: 372 [2021-10-28 23:27:08,387 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2021-10-28 23:27:08,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2021-10-28 23:27:08,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 363. [2021-10-28 23:27:08,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 361 states have (on average 1.1523545706371192) internal successors, (416), 362 states have internal predecessors, (416), 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) [2021-10-28 23:27:08,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 416 transitions. [2021-10-28 23:27:08,409 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 416 transitions. Word has length 72 [2021-10-28 23:27:08,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:27:08,409 INFO L470 AbstractCegarLoop]: Abstraction has 363 states and 416 transitions. [2021-10-28 23:27:08,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.8125) internal successors, (93), 16 states have internal predecessors, (93), 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) [2021-10-28 23:27:08,410 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 416 transitions. [2021-10-28 23:27:08,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-10-28 23:27:08,411 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:27:08,411 INFO L513 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 1, 1] [2021-10-28 23:27:08,446 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-10-28 23:27:08,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-10-28 23:27:08,635 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:27:08,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:27:08,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1336389577, now seen corresponding path program 11 times [2021-10-28 23:27:08,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:27:08,636 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108785586] [2021-10-28 23:27:08,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:27:08,636 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:27:08,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:27:08,849 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 0 proven. 432 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:27:08,849 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:27:08,850 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108785586] [2021-10-28 23:27:08,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108785586] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:08,850 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [946878171] [2021-10-28 23:27:08,850 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 23:27:08,850 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:27:08,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:27:08,856 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:27:08,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-10-28 23:27:09,262 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2021-10-28 23:27:09,262 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:27:09,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-28 23:27:09,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:27:09,568 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 0 proven. 432 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:27:09,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [946878171] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:09,568 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:27:09,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 13 [2021-10-28 23:27:09,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143018561] [2021-10-28 23:27:09,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-28 23:27:09,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:27:09,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-28 23:27:09,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2021-10-28 23:27:09,571 INFO L87 Difference]: Start difference. First operand 363 states and 416 transitions. Second operand has 15 states, 14 states have (on average 5.428571428571429) internal successors, (76), 14 states have internal predecessors, (76), 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) [2021-10-28 23:27:09,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:27:09,726 INFO L93 Difference]: Finished difference Result 695 states and 804 transitions. [2021-10-28 23:27:09,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-28 23:27:09,727 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 5.428571428571429) internal successors, (76), 14 states have internal predecessors, (76), 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) Word has length 76 [2021-10-28 23:27:09,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:27:09,732 INFO L225 Difference]: With dead ends: 695 [2021-10-28 23:27:09,732 INFO L226 Difference]: Without dead ends: 694 [2021-10-28 23:27:09,733 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2021-10-28 23:27:09,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states. [2021-10-28 23:27:09,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 390. [2021-10-28 23:27:09,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 388 states have (on average 1.1546391752577319) internal successors, (448), 389 states have internal predecessors, (448), 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) [2021-10-28 23:27:09,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 448 transitions. [2021-10-28 23:27:09,761 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 448 transitions. Word has length 76 [2021-10-28 23:27:09,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:27:09,761 INFO L470 AbstractCegarLoop]: Abstraction has 390 states and 448 transitions. [2021-10-28 23:27:09,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 5.428571428571429) internal successors, (76), 14 states have internal predecessors, (76), 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) [2021-10-28 23:27:09,762 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 448 transitions. [2021-10-28 23:27:09,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-10-28 23:27:09,763 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:27:09,763 INFO L513 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 1, 1] [2021-10-28 23:27:09,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-10-28 23:27:09,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-10-28 23:27:09,971 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:27:09,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:27:09,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1313411728, now seen corresponding path program 12 times [2021-10-28 23:27:09,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:27:09,972 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225667238] [2021-10-28 23:27:09,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:27:09,973 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:27:09,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:27:10,147 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 0 proven. 507 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:27:10,147 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:27:10,147 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225667238] [2021-10-28 23:27:10,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225667238] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:10,148 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1702935855] [2021-10-28 23:27:10,148 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-28 23:27:10,148 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:27:10,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:27:10,150 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:27:10,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-10-28 23:27:10,511 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 14 check-sat command(s) [2021-10-28 23:27:10,511 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:27:10,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-28 23:27:10,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:27:10,809 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 0 proven. 507 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:27:10,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1702935855] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:10,810 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:27:10,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 14 [2021-10-28 23:27:10,810 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361483715] [2021-10-28 23:27:10,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-28 23:27:10,812 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:27:10,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-28 23:27:10,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2021-10-28 23:27:10,813 INFO L87 Difference]: Start difference. First operand 390 states and 448 transitions. Second operand has 16 states, 15 states have (on average 5.466666666666667) internal successors, (82), 15 states have internal predecessors, (82), 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) [2021-10-28 23:27:10,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:27:10,977 INFO L93 Difference]: Finished difference Result 751 states and 870 transitions. [2021-10-28 23:27:10,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-28 23:27:10,978 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.466666666666667) internal successors, (82), 15 states have internal predecessors, (82), 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) Word has length 82 [2021-10-28 23:27:10,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:27:10,983 INFO L225 Difference]: With dead ends: 751 [2021-10-28 23:27:10,983 INFO L226 Difference]: Without dead ends: 750 [2021-10-28 23:27:10,984 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2021-10-28 23:27:10,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2021-10-28 23:27:11,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 417. [2021-10-28 23:27:11,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 415 states have (on average 1.1566265060240963) internal successors, (480), 416 states have internal predecessors, (480), 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) [2021-10-28 23:27:11,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 480 transitions. [2021-10-28 23:27:11,009 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 480 transitions. Word has length 82 [2021-10-28 23:27:11,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:27:11,009 INFO L470 AbstractCegarLoop]: Abstraction has 417 states and 480 transitions. [2021-10-28 23:27:11,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.466666666666667) internal successors, (82), 15 states have internal predecessors, (82), 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) [2021-10-28 23:27:11,010 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 480 transitions. [2021-10-28 23:27:11,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-10-28 23:27:11,011 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:27:11,021 INFO L513 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 1, 1] [2021-10-28 23:27:11,066 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-10-28 23:27:11,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-10-28 23:27:11,235 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:27:11,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:27:11,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1372652567, now seen corresponding path program 13 times [2021-10-28 23:27:11,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:27:11,236 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888386773] [2021-10-28 23:27:11,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:27:11,236 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:27:11,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:27:11,448 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 0 proven. 588 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:27:11,448 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:27:11,448 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888386773] [2021-10-28 23:27:11,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888386773] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:11,448 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1446727450] [2021-10-28 23:27:11,449 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-28 23:27:11,449 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:27:11,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:27:11,450 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:27:11,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-10-28 23:27:11,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:27:11,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-28 23:27:11,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:27:12,218 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 0 proven. 588 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:27:12,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1446727450] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:12,219 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:27:12,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 15 [2021-10-28 23:27:12,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735645596] [2021-10-28 23:27:12,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-28 23:27:12,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:27:12,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-28 23:27:12,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2021-10-28 23:27:12,221 INFO L87 Difference]: Start difference. First operand 417 states and 480 transitions. Second operand has 17 states, 16 states have (on average 5.5) internal successors, (88), 16 states have internal predecessors, (88), 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) [2021-10-28 23:27:12,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:27:12,377 INFO L93 Difference]: Finished difference Result 807 states and 936 transitions. [2021-10-28 23:27:12,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-28 23:27:12,378 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 5.5) internal successors, (88), 16 states have internal predecessors, (88), 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) Word has length 88 [2021-10-28 23:27:12,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:27:12,383 INFO L225 Difference]: With dead ends: 807 [2021-10-28 23:27:12,384 INFO L226 Difference]: Without dead ends: 806 [2021-10-28 23:27:12,385 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2021-10-28 23:27:12,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2021-10-28 23:27:12,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 444. [2021-10-28 23:27:12,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 442 states have (on average 1.158371040723982) internal successors, (512), 443 states have internal predecessors, (512), 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) [2021-10-28 23:27:12,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 512 transitions. [2021-10-28 23:27:12,420 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 512 transitions. Word has length 88 [2021-10-28 23:27:12,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:27:12,420 INFO L470 AbstractCegarLoop]: Abstraction has 444 states and 512 transitions. [2021-10-28 23:27:12,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 5.5) internal successors, (88), 16 states have internal predecessors, (88), 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) [2021-10-28 23:27:12,422 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 512 transitions. [2021-10-28 23:27:12,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-10-28 23:27:12,423 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:27:12,423 INFO L513 BasicCegarLoop]: trace histogram [15, 14, 14, 11, 11, 11, 4, 4, 4, 1, 1] [2021-10-28 23:27:12,475 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-10-28 23:27:12,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-10-28 23:27:12,644 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:27:12,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:27:12,645 INFO L85 PathProgramCache]: Analyzing trace with hash 289561722, now seen corresponding path program 7 times [2021-10-28 23:27:12,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:27:12,645 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284082695] [2021-10-28 23:27:12,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:27:12,645 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:27:12,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:27:12,806 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 149 proven. 352 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-10-28 23:27:12,807 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:27:12,807 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284082695] [2021-10-28 23:27:12,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284082695] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:12,808 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1947747314] [2021-10-28 23:27:12,808 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-28 23:27:12,808 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:27:12,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:27:12,809 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:27:12,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-10-28 23:27:13,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:27:13,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 23:27:13,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:27:13,729 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 149 proven. 352 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-10-28 23:27:13,729 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1947747314] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:13,729 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:27:13,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 13 [2021-10-28 23:27:13,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341944548] [2021-10-28 23:27:13,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-28 23:27:13,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:27:13,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-28 23:27:13,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2021-10-28 23:27:13,732 INFO L87 Difference]: Start difference. First operand 444 states and 512 transitions. Second operand has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 13 states have internal predecessors, (76), 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) [2021-10-28 23:27:13,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:27:13,805 INFO L93 Difference]: Finished difference Result 835 states and 972 transitions. [2021-10-28 23:27:13,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-28 23:27:13,806 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 13 states have internal predecessors, (76), 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) Word has length 90 [2021-10-28 23:27:13,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:27:13,810 INFO L225 Difference]: With dead ends: 835 [2021-10-28 23:27:13,810 INFO L226 Difference]: Without dead ends: 454 [2021-10-28 23:27:13,811 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2021-10-28 23:27:13,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2021-10-28 23:27:13,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 450. [2021-10-28 23:27:13,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 448 states have (on average 1.15625) internal successors, (518), 449 states have internal predecessors, (518), 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) [2021-10-28 23:27:13,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 518 transitions. [2021-10-28 23:27:13,832 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 518 transitions. Word has length 90 [2021-10-28 23:27:13,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:27:13,832 INFO L470 AbstractCegarLoop]: Abstraction has 450 states and 518 transitions. [2021-10-28 23:27:13,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 13 states have internal predecessors, (76), 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) [2021-10-28 23:27:13,833 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 518 transitions. [2021-10-28 23:27:13,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-10-28 23:27:13,834 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:27:13,834 INFO L513 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 1, 1] [2021-10-28 23:27:13,881 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-10-28 23:27:14,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:27:14,059 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:27:14,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:27:14,060 INFO L85 PathProgramCache]: Analyzing trace with hash 146181026, now seen corresponding path program 14 times [2021-10-28 23:27:14,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:27:14,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739946304] [2021-10-28 23:27:14,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:27:14,060 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:27:14,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:27:14,303 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 0 proven. 675 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:27:14,303 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:27:14,303 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739946304] [2021-10-28 23:27:14,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739946304] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:14,304 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2039781264] [2021-10-28 23:27:14,304 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:27:14,304 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:27:14,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:27:14,306 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:27:14,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-10-28 23:27:14,871 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 23:27:14,871 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:27:14,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-28 23:27:14,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:27:15,259 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 0 proven. 675 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:27:15,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2039781264] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:15,260 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:27:15,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 16 [2021-10-28 23:27:15,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585156009] [2021-10-28 23:27:15,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-28 23:27:15,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:27:15,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-28 23:27:15,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2021-10-28 23:27:15,262 INFO L87 Difference]: Start difference. First operand 450 states and 518 transitions. Second operand has 18 states, 17 states have (on average 5.529411764705882) internal successors, (94), 17 states have internal predecessors, (94), 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) [2021-10-28 23:27:15,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:27:15,470 INFO L93 Difference]: Finished difference Result 869 states and 1008 transitions. [2021-10-28 23:27:15,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-28 23:27:15,470 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 5.529411764705882) internal successors, (94), 17 states have internal predecessors, (94), 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) Word has length 94 [2021-10-28 23:27:15,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:27:15,476 INFO L225 Difference]: With dead ends: 869 [2021-10-28 23:27:15,477 INFO L226 Difference]: Without dead ends: 868 [2021-10-28 23:27:15,478 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2021-10-28 23:27:15,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 868 states. [2021-10-28 23:27:15,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 868 to 477. [2021-10-28 23:27:15,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 475 states have (on average 1.1578947368421053) internal successors, (550), 476 states have internal predecessors, (550), 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) [2021-10-28 23:27:15,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 550 transitions. [2021-10-28 23:27:15,506 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 550 transitions. Word has length 94 [2021-10-28 23:27:15,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:27:15,507 INFO L470 AbstractCegarLoop]: Abstraction has 477 states and 550 transitions. [2021-10-28 23:27:15,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 5.529411764705882) internal successors, (94), 17 states have internal predecessors, (94), 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) [2021-10-28 23:27:15,507 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 550 transitions. [2021-10-28 23:27:15,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-28 23:27:15,508 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:27:15,509 INFO L513 BasicCegarLoop]: trace histogram [16, 15, 15, 12, 12, 12, 4, 4, 4, 1, 1] [2021-10-28 23:27:15,556 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2021-10-28 23:27:15,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-10-28 23:27:15,723 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:27:15,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:27:15,724 INFO L85 PathProgramCache]: Analyzing trace with hash -400236045, now seen corresponding path program 8 times [2021-10-28 23:27:15,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:27:15,724 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781583982] [2021-10-28 23:27:15,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:27:15,724 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:27:15,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:27:15,899 INFO L134 CoverageAnalysis]: Checked inductivity of 609 backedges. 162 proven. 420 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-10-28 23:27:15,900 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:27:15,900 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781583982] [2021-10-28 23:27:15,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781583982] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:15,900 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1175556794] [2021-10-28 23:27:15,901 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:27:15,901 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:27:15,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:27:15,903 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:27:15,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-10-28 23:27:16,386 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 23:27:16,386 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:27:16,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-28 23:27:16,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:27:16,681 INFO L134 CoverageAnalysis]: Checked inductivity of 609 backedges. 162 proven. 420 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-10-28 23:27:16,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1175556794] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:16,682 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:27:16,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 14 [2021-10-28 23:27:16,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476849706] [2021-10-28 23:27:16,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-28 23:27:16,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:27:16,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-28 23:27:16,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2021-10-28 23:27:16,685 INFO L87 Difference]: Start difference. First operand 477 states and 550 transitions. Second operand has 15 states, 15 states have (on average 5.466666666666667) internal successors, (82), 14 states have internal predecessors, (82), 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) [2021-10-28 23:27:16,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:27:16,754 INFO L93 Difference]: Finished difference Result 895 states and 1042 transitions. [2021-10-28 23:27:16,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-28 23:27:16,755 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.466666666666667) internal successors, (82), 14 states have internal predecessors, (82), 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) Word has length 96 [2021-10-28 23:27:16,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:27:16,759 INFO L225 Difference]: With dead ends: 895 [2021-10-28 23:27:16,759 INFO L226 Difference]: Without dead ends: 487 [2021-10-28 23:27:16,761 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2021-10-28 23:27:16,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2021-10-28 23:27:16,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 483. [2021-10-28 23:27:16,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 481 states have (on average 1.155925155925156) internal successors, (556), 482 states have internal predecessors, (556), 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) [2021-10-28 23:27:16,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 556 transitions. [2021-10-28 23:27:16,783 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 556 transitions. Word has length 96 [2021-10-28 23:27:16,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:27:16,783 INFO L470 AbstractCegarLoop]: Abstraction has 483 states and 556 transitions. [2021-10-28 23:27:16,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.466666666666667) internal successors, (82), 14 states have internal predecessors, (82), 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) [2021-10-28 23:27:16,784 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 556 transitions. [2021-10-28 23:27:16,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-10-28 23:27:16,785 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:27:16,785 INFO L513 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 1, 1] [2021-10-28 23:27:16,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2021-10-28 23:27:17,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-10-28 23:27:17,001 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:27:17,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:27:17,001 INFO L85 PathProgramCache]: Analyzing trace with hash -143151973, now seen corresponding path program 15 times [2021-10-28 23:27:17,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:27:17,001 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603715308] [2021-10-28 23:27:17,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:27:17,002 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:27:17,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:27:17,245 INFO L134 CoverageAnalysis]: Checked inductivity of 768 backedges. 0 proven. 768 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:27:17,245 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:27:17,245 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603715308] [2021-10-28 23:27:17,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603715308] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:17,246 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1167986075] [2021-10-28 23:27:17,246 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 23:27:17,246 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:27:17,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:27:17,251 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:27:17,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-10-28 23:27:17,763 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 17 check-sat command(s) [2021-10-28 23:27:17,763 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:27:17,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-28 23:27:17,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:27:18,134 INFO L134 CoverageAnalysis]: Checked inductivity of 768 backedges. 0 proven. 768 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:27:18,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1167986075] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:18,134 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:27:18,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 17 [2021-10-28 23:27:18,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387973619] [2021-10-28 23:27:18,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-28 23:27:18,135 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:27:18,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-28 23:27:18,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2021-10-28 23:27:18,136 INFO L87 Difference]: Start difference. First operand 483 states and 556 transitions. Second operand has 19 states, 18 states have (on average 5.555555555555555) internal successors, (100), 18 states have internal predecessors, (100), 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) [2021-10-28 23:27:18,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:27:18,312 INFO L93 Difference]: Finished difference Result 931 states and 1080 transitions. [2021-10-28 23:27:18,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-28 23:27:18,313 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 5.555555555555555) internal successors, (100), 18 states have internal predecessors, (100), 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) Word has length 100 [2021-10-28 23:27:18,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:27:18,320 INFO L225 Difference]: With dead ends: 931 [2021-10-28 23:27:18,320 INFO L226 Difference]: Without dead ends: 930 [2021-10-28 23:27:18,322 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2021-10-28 23:27:18,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 930 states. [2021-10-28 23:27:18,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 930 to 510. [2021-10-28 23:27:18,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 508 states have (on average 1.1574803149606299) internal successors, (588), 509 states have internal predecessors, (588), 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) [2021-10-28 23:27:18,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 588 transitions. [2021-10-28 23:27:18,351 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 588 transitions. Word has length 100 [2021-10-28 23:27:18,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:27:18,352 INFO L470 AbstractCegarLoop]: Abstraction has 510 states and 588 transitions. [2021-10-28 23:27:18,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 5.555555555555555) internal successors, (100), 18 states have internal predecessors, (100), 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) [2021-10-28 23:27:18,352 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 588 transitions. [2021-10-28 23:27:18,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-10-28 23:27:18,354 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:27:18,354 INFO L513 BasicCegarLoop]: trace histogram [17, 16, 16, 13, 13, 13, 4, 4, 4, 1, 1] [2021-10-28 23:27:18,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2021-10-28 23:27:18,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-10-28 23:27:18,567 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:27:18,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:27:18,568 INFO L85 PathProgramCache]: Analyzing trace with hash 723626156, now seen corresponding path program 9 times [2021-10-28 23:27:18,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:27:18,568 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890434694] [2021-10-28 23:27:18,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:27:18,568 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:27:18,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:27:18,737 INFO L134 CoverageAnalysis]: Checked inductivity of 696 backedges. 175 proven. 494 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-10-28 23:27:18,737 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:27:18,737 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890434694] [2021-10-28 23:27:18,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890434694] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:18,738 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1117063713] [2021-10-28 23:27:18,738 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 23:27:18,738 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:27:18,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:27:18,740 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:27:18,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-10-28 23:27:19,343 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-10-28 23:27:19,343 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:27:19,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 23:27:19,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:27:19,719 INFO L134 CoverageAnalysis]: Checked inductivity of 696 backedges. 285 proven. 59 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked. [2021-10-28 23:27:19,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1117063713] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:19,720 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:27:19,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 7] total 22 [2021-10-28 23:27:19,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556324236] [2021-10-28 23:27:19,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-28 23:27:19,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:27:19,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-28 23:27:19,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2021-10-28 23:27:19,723 INFO L87 Difference]: Start difference. First operand 510 states and 588 transitions. Second operand has 22 states, 22 states have (on average 5.863636363636363) internal successors, (129), 22 states have internal predecessors, (129), 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) [2021-10-28 23:27:19,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:27:19,874 INFO L93 Difference]: Finished difference Result 1125 states and 1335 transitions. [2021-10-28 23:27:19,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-28 23:27:19,875 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.863636363636363) internal successors, (129), 22 states have internal predecessors, (129), 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) Word has length 102 [2021-10-28 23:27:19,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:27:19,880 INFO L225 Difference]: With dead ends: 1125 [2021-10-28 23:27:19,881 INFO L226 Difference]: Without dead ends: 690 [2021-10-28 23:27:19,883 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2021-10-28 23:27:19,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2021-10-28 23:27:19,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 678. [2021-10-28 23:27:19,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 676 states have (on average 1.1553254437869822) internal successors, (781), 677 states have internal predecessors, (781), 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) [2021-10-28 23:27:19,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 781 transitions. [2021-10-28 23:27:19,916 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 781 transitions. Word has length 102 [2021-10-28 23:27:19,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:27:19,916 INFO L470 AbstractCegarLoop]: Abstraction has 678 states and 781 transitions. [2021-10-28 23:27:19,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.863636363636363) internal successors, (129), 22 states have internal predecessors, (129), 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) [2021-10-28 23:27:19,917 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 781 transitions. [2021-10-28 23:27:19,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-10-28 23:27:19,918 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:27:19,919 INFO L513 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 1, 1] [2021-10-28 23:27:19,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-10-28 23:27:20,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:27:20,135 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:27:20,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:27:20,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1288728276, now seen corresponding path program 16 times [2021-10-28 23:27:20,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:27:20,136 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116951191] [2021-10-28 23:27:20,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:27:20,137 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:27:20,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:27:20,405 INFO L134 CoverageAnalysis]: Checked inductivity of 867 backedges. 0 proven. 867 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:27:20,405 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:27:20,406 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116951191] [2021-10-28 23:27:20,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116951191] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:20,406 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1501273140] [2021-10-28 23:27:20,406 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 23:27:20,406 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:27:20,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:27:20,415 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:27:20,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-10-28 23:27:21,038 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 23:27:21,038 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:27:21,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-28 23:27:21,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:27:21,431 INFO L134 CoverageAnalysis]: Checked inductivity of 867 backedges. 0 proven. 867 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:27:21,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1501273140] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:21,432 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:27:21,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 18 [2021-10-28 23:27:21,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154682582] [2021-10-28 23:27:21,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-28 23:27:21,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:27:21,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-28 23:27:21,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2021-10-28 23:27:21,435 INFO L87 Difference]: Start difference. First operand 678 states and 781 transitions. Second operand has 20 states, 19 states have (on average 5.578947368421052) internal successors, (106), 19 states have internal predecessors, (106), 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) [2021-10-28 23:27:21,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:27:21,647 INFO L93 Difference]: Finished difference Result 1317 states and 1528 transitions. [2021-10-28 23:27:21,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-28 23:27:21,648 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 5.578947368421052) internal successors, (106), 19 states have internal predecessors, (106), 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) Word has length 106 [2021-10-28 23:27:21,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:27:21,657 INFO L225 Difference]: With dead ends: 1317 [2021-10-28 23:27:21,657 INFO L226 Difference]: Without dead ends: 1316 [2021-10-28 23:27:21,658 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2021-10-28 23:27:21,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1316 states. [2021-10-28 23:27:21,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1316 to 717. [2021-10-28 23:27:21,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 717 states, 715 states have (on average 1.1566433566433567) internal successors, (827), 716 states have internal predecessors, (827), 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) [2021-10-28 23:27:21,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 827 transitions. [2021-10-28 23:27:21,699 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 827 transitions. Word has length 106 [2021-10-28 23:27:21,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:27:21,699 INFO L470 AbstractCegarLoop]: Abstraction has 717 states and 827 transitions. [2021-10-28 23:27:21,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 5.578947368421052) internal successors, (106), 19 states have internal predecessors, (106), 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) [2021-10-28 23:27:21,700 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 827 transitions. [2021-10-28 23:27:21,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-10-28 23:27:21,701 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:27:21,702 INFO L513 BasicCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 1, 1] [2021-10-28 23:27:21,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2021-10-28 23:27:21,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:27:21,922 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:27:21,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:27:21,922 INFO L85 PathProgramCache]: Analyzing trace with hash -2142051763, now seen corresponding path program 17 times [2021-10-28 23:27:21,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:27:21,922 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956392656] [2021-10-28 23:27:21,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:27:21,923 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:27:21,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:27:22,213 INFO L134 CoverageAnalysis]: Checked inductivity of 972 backedges. 0 proven. 972 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:27:22,213 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:27:22,213 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956392656] [2021-10-28 23:27:22,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956392656] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:22,213 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1512698195] [2021-10-28 23:27:22,213 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 23:27:22,213 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:27:22,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:27:22,215 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:27:22,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-10-28 23:27:22,846 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 19 check-sat command(s) [2021-10-28 23:27:22,846 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:27:22,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-28 23:27:22,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:27:23,240 INFO L134 CoverageAnalysis]: Checked inductivity of 972 backedges. 0 proven. 972 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:27:23,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1512698195] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:23,241 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:27:23,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 19 [2021-10-28 23:27:23,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054304107] [2021-10-28 23:27:23,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-28 23:27:23,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:27:23,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-28 23:27:23,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2021-10-28 23:27:23,242 INFO L87 Difference]: Start difference. First operand 717 states and 827 transitions. Second operand has 21 states, 20 states have (on average 5.6) internal successors, (112), 20 states have internal predecessors, (112), 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) [2021-10-28 23:27:23,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:27:23,447 INFO L93 Difference]: Finished difference Result 1397 states and 1622 transitions. [2021-10-28 23:27:23,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-28 23:27:23,448 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 5.6) internal successors, (112), 20 states have internal predecessors, (112), 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) Word has length 112 [2021-10-28 23:27:23,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:27:23,457 INFO L225 Difference]: With dead ends: 1397 [2021-10-28 23:27:23,457 INFO L226 Difference]: Without dead ends: 1396 [2021-10-28 23:27:23,458 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2021-10-28 23:27:23,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1396 states. [2021-10-28 23:27:23,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1396 to 756. [2021-10-28 23:27:23,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 756 states, 754 states have (on average 1.1578249336870026) internal successors, (873), 755 states have internal predecessors, (873), 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) [2021-10-28 23:27:23,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 756 states to 756 states and 873 transitions. [2021-10-28 23:27:23,502 INFO L78 Accepts]: Start accepts. Automaton has 756 states and 873 transitions. Word has length 112 [2021-10-28 23:27:23,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:27:23,502 INFO L470 AbstractCegarLoop]: Abstraction has 756 states and 873 transitions. [2021-10-28 23:27:23,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 5.6) internal successors, (112), 20 states have internal predecessors, (112), 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) [2021-10-28 23:27:23,503 INFO L276 IsEmpty]: Start isEmpty. Operand 756 states and 873 transitions. [2021-10-28 23:27:23,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-10-28 23:27:23,505 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:27:23,505 INFO L513 BasicCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 1, 1] [2021-10-28 23:27:23,553 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2021-10-28 23:27:23,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:27:23,727 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:27:23,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:27:23,728 INFO L85 PathProgramCache]: Analyzing trace with hash -138078458, now seen corresponding path program 18 times [2021-10-28 23:27:23,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:27:23,728 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639358042] [2021-10-28 23:27:23,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:27:23,728 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:27:23,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:27:24,092 INFO L134 CoverageAnalysis]: Checked inductivity of 1083 backedges. 0 proven. 1083 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:27:24,092 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:27:24,092 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639358042] [2021-10-28 23:27:24,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639358042] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:24,092 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1299265829] [2021-10-28 23:27:24,092 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-28 23:27:24,093 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:27:24,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:27:24,095 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:27:24,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-10-28 23:27:24,997 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 20 check-sat command(s) [2021-10-28 23:27:24,997 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:27:24,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-28 23:27:25,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:27:25,454 INFO L134 CoverageAnalysis]: Checked inductivity of 1083 backedges. 0 proven. 1083 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:27:25,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1299265829] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:25,454 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:27:25,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 20 [2021-10-28 23:27:25,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426703310] [2021-10-28 23:27:25,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-28 23:27:25,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:27:25,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-28 23:27:25,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2021-10-28 23:27:25,456 INFO L87 Difference]: Start difference. First operand 756 states and 873 transitions. Second operand has 22 states, 21 states have (on average 5.619047619047619) internal successors, (118), 21 states have internal predecessors, (118), 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) [2021-10-28 23:27:25,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:27:25,660 INFO L93 Difference]: Finished difference Result 1477 states and 1716 transitions. [2021-10-28 23:27:25,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-28 23:27:25,661 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 5.619047619047619) internal successors, (118), 21 states have internal predecessors, (118), 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) Word has length 118 [2021-10-28 23:27:25,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:27:25,670 INFO L225 Difference]: With dead ends: 1477 [2021-10-28 23:27:25,671 INFO L226 Difference]: Without dead ends: 1476 [2021-10-28 23:27:25,672 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2021-10-28 23:27:25,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1476 states. [2021-10-28 23:27:25,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1476 to 795. [2021-10-28 23:27:25,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 795 states, 793 states have (on average 1.158890290037831) internal successors, (919), 794 states have internal predecessors, (919), 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) [2021-10-28 23:27:25,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 795 states to 795 states and 919 transitions. [2021-10-28 23:27:25,733 INFO L78 Accepts]: Start accepts. Automaton has 795 states and 919 transitions. Word has length 118 [2021-10-28 23:27:25,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:27:25,734 INFO L470 AbstractCegarLoop]: Abstraction has 795 states and 919 transitions. [2021-10-28 23:27:25,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 5.619047619047619) internal successors, (118), 21 states have internal predecessors, (118), 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) [2021-10-28 23:27:25,734 INFO L276 IsEmpty]: Start isEmpty. Operand 795 states and 919 transitions. [2021-10-28 23:27:25,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-10-28 23:27:25,736 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:27:25,737 INFO L513 BasicCegarLoop]: trace histogram [21, 21, 20, 20, 20, 20, 1, 1] [2021-10-28 23:27:25,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2021-10-28 23:27:25,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:27:25,963 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:27:25,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:27:25,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1876878081, now seen corresponding path program 19 times [2021-10-28 23:27:25,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:27:25,964 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969367590] [2021-10-28 23:27:25,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:27:25,964 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:27:25,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:27:26,301 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 1200 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:27:26,301 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:27:26,301 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969367590] [2021-10-28 23:27:26,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969367590] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:26,302 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223732463] [2021-10-28 23:27:26,302 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-28 23:27:26,302 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:27:26,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:27:26,307 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:27:26,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2021-10-28 23:27:27,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:27:27,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-28 23:27:27,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:27:27,659 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 1200 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:27:27,659 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [223732463] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:27,659 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:27:27,659 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 21 [2021-10-28 23:27:27,660 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609823754] [2021-10-28 23:27:27,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-28 23:27:27,660 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:27:27,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-28 23:27:27,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2021-10-28 23:27:27,661 INFO L87 Difference]: Start difference. First operand 795 states and 919 transitions. Second operand has 23 states, 22 states have (on average 5.636363636363637) internal successors, (124), 22 states have internal predecessors, (124), 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) [2021-10-28 23:27:27,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:27:27,869 INFO L93 Difference]: Finished difference Result 1557 states and 1810 transitions. [2021-10-28 23:27:27,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-28 23:27:27,870 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 5.636363636363637) internal successors, (124), 22 states have internal predecessors, (124), 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) Word has length 124 [2021-10-28 23:27:27,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:27:27,879 INFO L225 Difference]: With dead ends: 1557 [2021-10-28 23:27:27,879 INFO L226 Difference]: Without dead ends: 1556 [2021-10-28 23:27:27,881 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2021-10-28 23:27:27,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1556 states. [2021-10-28 23:27:27,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1556 to 834. [2021-10-28 23:27:27,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 834 states, 832 states have (on average 1.1598557692307692) internal successors, (965), 833 states have internal predecessors, (965), 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) [2021-10-28 23:27:27,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 965 transitions. [2021-10-28 23:27:27,923 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 965 transitions. Word has length 124 [2021-10-28 23:27:27,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:27:27,924 INFO L470 AbstractCegarLoop]: Abstraction has 834 states and 965 transitions. [2021-10-28 23:27:27,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 5.636363636363637) internal successors, (124), 22 states have internal predecessors, (124), 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) [2021-10-28 23:27:27,924 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 965 transitions. [2021-10-28 23:27:27,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-10-28 23:27:27,926 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:27:27,927 INFO L513 BasicCegarLoop]: trace histogram [21, 20, 20, 15, 15, 15, 6, 6, 6, 1, 1] [2021-10-28 23:27:27,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2021-10-28 23:27:28,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:27:28,147 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:27:28,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:27:28,148 INFO L85 PathProgramCache]: Analyzing trace with hash -637299836, now seen corresponding path program 10 times [2021-10-28 23:27:28,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:27:28,148 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579745254] [2021-10-28 23:27:28,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:27:28,148 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:27:28,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:27:28,384 INFO L134 CoverageAnalysis]: Checked inductivity of 1060 backedges. 325 proven. 660 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-10-28 23:27:28,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:27:28,384 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579745254] [2021-10-28 23:27:28,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579745254] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:28,385 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468573270] [2021-10-28 23:27:28,385 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 23:27:28,385 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:27:28,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:27:28,387 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:27:28,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2021-10-28 23:27:29,150 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 23:27:29,150 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:27:29,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-28 23:27:29,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:27:29,561 INFO L134 CoverageAnalysis]: Checked inductivity of 1060 backedges. 325 proven. 660 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-10-28 23:27:29,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1468573270] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:29,561 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:27:29,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 17 [2021-10-28 23:27:29,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997841050] [2021-10-28 23:27:29,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-28 23:27:29,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:27:29,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-28 23:27:29,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2021-10-28 23:27:29,564 INFO L87 Difference]: Start difference. First operand 834 states and 965 transitions. Second operand has 18 states, 18 states have (on average 5.555555555555555) internal successors, (100), 17 states have internal predecessors, (100), 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) [2021-10-28 23:27:29,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:27:29,654 INFO L93 Difference]: Finished difference Result 1591 states and 1854 transitions. [2021-10-28 23:27:29,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-28 23:27:29,655 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.555555555555555) internal successors, (100), 17 states have internal predecessors, (100), 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) Word has length 126 [2021-10-28 23:27:29,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:27:29,660 INFO L225 Difference]: With dead ends: 1591 [2021-10-28 23:27:29,660 INFO L226 Difference]: Without dead ends: 844 [2021-10-28 23:27:29,662 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2021-10-28 23:27:29,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2021-10-28 23:27:29,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 840. [2021-10-28 23:27:29,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 840 states, 838 states have (on average 1.1587112171837708) internal successors, (971), 839 states have internal predecessors, (971), 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) [2021-10-28 23:27:29,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 840 states to 840 states and 971 transitions. [2021-10-28 23:27:29,692 INFO L78 Accepts]: Start accepts. Automaton has 840 states and 971 transitions. Word has length 126 [2021-10-28 23:27:29,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:27:29,693 INFO L470 AbstractCegarLoop]: Abstraction has 840 states and 971 transitions. [2021-10-28 23:27:29,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.555555555555555) internal successors, (100), 17 states have internal predecessors, (100), 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) [2021-10-28 23:27:29,693 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states and 971 transitions. [2021-10-28 23:27:29,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-10-28 23:27:29,695 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:27:29,696 INFO L513 BasicCegarLoop]: trace histogram [22, 22, 21, 21, 21, 21, 1, 1] [2021-10-28 23:27:29,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2021-10-28 23:27:29,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2021-10-28 23:27:29,911 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:27:29,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:27:29,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1721041976, now seen corresponding path program 20 times [2021-10-28 23:27:29,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:27:29,912 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174272976] [2021-10-28 23:27:29,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:27:29,912 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:27:29,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:27:30,260 INFO L134 CoverageAnalysis]: Checked inductivity of 1323 backedges. 0 proven. 1323 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:27:30,261 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:27:30,261 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174272976] [2021-10-28 23:27:30,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174272976] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:30,261 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1161541857] [2021-10-28 23:27:30,262 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:27:30,262 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:27:30,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:27:30,263 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:27:30,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2021-10-28 23:27:31,038 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 23:27:31,038 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:27:31,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-28 23:27:31,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:27:31,504 INFO L134 CoverageAnalysis]: Checked inductivity of 1323 backedges. 0 proven. 1323 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:27:31,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1161541857] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:31,505 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:27:31,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 22 [2021-10-28 23:27:31,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489574104] [2021-10-28 23:27:31,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-10-28 23:27:31,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:27:31,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-10-28 23:27:31,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-10-28 23:27:31,506 INFO L87 Difference]: Start difference. First operand 840 states and 971 transitions. Second operand has 24 states, 23 states have (on average 5.6521739130434785) internal successors, (130), 23 states have internal predecessors, (130), 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) [2021-10-28 23:27:31,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:27:31,748 INFO L93 Difference]: Finished difference Result 1643 states and 1910 transitions. [2021-10-28 23:27:31,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-28 23:27:31,749 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 5.6521739130434785) internal successors, (130), 23 states have internal predecessors, (130), 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) Word has length 130 [2021-10-28 23:27:31,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:27:31,757 INFO L225 Difference]: With dead ends: 1643 [2021-10-28 23:27:31,757 INFO L226 Difference]: Without dead ends: 1642 [2021-10-28 23:27:31,758 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-10-28 23:27:31,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1642 states. [2021-10-28 23:27:31,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1642 to 879. [2021-10-28 23:27:31,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 879 states, 877 states have (on average 1.1596351197263397) internal successors, (1017), 878 states have internal predecessors, (1017), 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) [2021-10-28 23:27:31,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 879 states to 879 states and 1017 transitions. [2021-10-28 23:27:31,796 INFO L78 Accepts]: Start accepts. Automaton has 879 states and 1017 transitions. Word has length 130 [2021-10-28 23:27:31,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:27:31,797 INFO L470 AbstractCegarLoop]: Abstraction has 879 states and 1017 transitions. [2021-10-28 23:27:31,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 5.6521739130434785) internal successors, (130), 23 states have internal predecessors, (130), 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) [2021-10-28 23:27:31,797 INFO L276 IsEmpty]: Start isEmpty. Operand 879 states and 1017 transitions. [2021-10-28 23:27:31,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-10-28 23:27:31,800 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:27:31,800 INFO L513 BasicCegarLoop]: trace histogram [22, 21, 21, 16, 16, 16, 6, 6, 6, 1, 1] [2021-10-28 23:27:31,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2021-10-28 23:27:32,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:27:32,026 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:27:32,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:27:32,027 INFO L85 PathProgramCache]: Analyzing trace with hash -484798339, now seen corresponding path program 11 times [2021-10-28 23:27:32,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:27:32,027 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449863971] [2021-10-28 23:27:32,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:27:32,027 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:27:32,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:27:32,304 INFO L134 CoverageAnalysis]: Checked inductivity of 1173 backedges. 346 proven. 752 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-10-28 23:27:32,304 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:27:32,304 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449863971] [2021-10-28 23:27:32,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449863971] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:32,305 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587616481] [2021-10-28 23:27:32,305 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 23:27:32,305 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:27:32,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:27:32,307 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:27:32,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2021-10-28 23:27:33,226 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 18 check-sat command(s) [2021-10-28 23:27:33,226 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:27:33,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-28 23:27:33,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:27:33,617 INFO L134 CoverageAnalysis]: Checked inductivity of 1173 backedges. 346 proven. 752 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-10-28 23:27:33,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1587616481] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:33,617 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:27:33,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 18 [2021-10-28 23:27:33,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71880520] [2021-10-28 23:27:33,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-28 23:27:33,619 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:27:33,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-28 23:27:33,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2021-10-28 23:27:33,620 INFO L87 Difference]: Start difference. First operand 879 states and 1017 transitions. Second operand has 19 states, 19 states have (on average 5.578947368421052) internal successors, (106), 18 states have internal predecessors, (106), 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) [2021-10-28 23:27:33,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:27:33,733 INFO L93 Difference]: Finished difference Result 1675 states and 1952 transitions. [2021-10-28 23:27:33,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-28 23:27:33,752 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.578947368421052) internal successors, (106), 18 states have internal predecessors, (106), 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) Word has length 132 [2021-10-28 23:27:33,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:27:33,757 INFO L225 Difference]: With dead ends: 1675 [2021-10-28 23:27:33,758 INFO L226 Difference]: Without dead ends: 889 [2021-10-28 23:27:33,759 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2021-10-28 23:27:33,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 889 states. [2021-10-28 23:27:33,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 889 to 885. [2021-10-28 23:27:33,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 885 states, 883 states have (on average 1.1585503963759909) internal successors, (1023), 884 states have internal predecessors, (1023), 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) [2021-10-28 23:27:33,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 885 states to 885 states and 1023 transitions. [2021-10-28 23:27:33,792 INFO L78 Accepts]: Start accepts. Automaton has 885 states and 1023 transitions. Word has length 132 [2021-10-28 23:27:33,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:27:33,792 INFO L470 AbstractCegarLoop]: Abstraction has 885 states and 1023 transitions. [2021-10-28 23:27:33,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.578947368421052) internal successors, (106), 18 states have internal predecessors, (106), 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) [2021-10-28 23:27:33,793 INFO L276 IsEmpty]: Start isEmpty. Operand 885 states and 1023 transitions. [2021-10-28 23:27:33,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-10-28 23:27:33,795 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:27:33,795 INFO L513 BasicCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 1, 1] [2021-10-28 23:27:33,843 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2021-10-28 23:27:34,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2021-10-28 23:27:34,016 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:27:34,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:27:34,016 INFO L85 PathProgramCache]: Analyzing trace with hash -511517519, now seen corresponding path program 21 times [2021-10-28 23:27:34,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:27:34,016 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637701706] [2021-10-28 23:27:34,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:27:34,017 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:27:34,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:27:34,400 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 0 proven. 1452 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:27:34,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:27:34,401 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637701706] [2021-10-28 23:27:34,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637701706] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:34,401 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2013219157] [2021-10-28 23:27:34,401 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 23:27:34,401 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:27:34,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:27:34,402 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:27:34,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2021-10-28 23:27:35,312 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 23 check-sat command(s) [2021-10-28 23:27:35,312 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:27:35,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 24 conjunts are in the unsatisfiable core [2021-10-28 23:27:35,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:27:35,743 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 0 proven. 1452 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:27:35,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2013219157] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:35,744 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:27:35,744 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 23 [2021-10-28 23:27:35,744 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990106042] [2021-10-28 23:27:35,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-28 23:27:35,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:27:35,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-28 23:27:35,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2021-10-28 23:27:35,746 INFO L87 Difference]: Start difference. First operand 885 states and 1023 transitions. Second operand has 25 states, 24 states have (on average 5.666666666666667) internal successors, (136), 24 states have internal predecessors, (136), 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) [2021-10-28 23:27:36,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:27:36,019 INFO L93 Difference]: Finished difference Result 1729 states and 2010 transitions. [2021-10-28 23:27:36,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-28 23:27:36,020 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 5.666666666666667) internal successors, (136), 24 states have internal predecessors, (136), 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) Word has length 136 [2021-10-28 23:27:36,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:27:36,027 INFO L225 Difference]: With dead ends: 1729 [2021-10-28 23:27:36,027 INFO L226 Difference]: Without dead ends: 1728 [2021-10-28 23:27:36,028 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2021-10-28 23:27:36,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1728 states. [2021-10-28 23:27:36,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1728 to 924. [2021-10-28 23:27:36,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 924 states, 922 states have (on average 1.1594360086767896) internal successors, (1069), 923 states have internal predecessors, (1069), 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) [2021-10-28 23:27:36,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 924 states to 924 states and 1069 transitions. [2021-10-28 23:27:36,060 INFO L78 Accepts]: Start accepts. Automaton has 924 states and 1069 transitions. Word has length 136 [2021-10-28 23:27:36,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:27:36,060 INFO L470 AbstractCegarLoop]: Abstraction has 924 states and 1069 transitions. [2021-10-28 23:27:36,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 5.666666666666667) internal successors, (136), 24 states have internal predecessors, (136), 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) [2021-10-28 23:27:36,061 INFO L276 IsEmpty]: Start isEmpty. Operand 924 states and 1069 transitions. [2021-10-28 23:27:36,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-10-28 23:27:36,063 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:27:36,063 INFO L513 BasicCegarLoop]: trace histogram [23, 22, 22, 17, 17, 17, 6, 6, 6, 1, 1] [2021-10-28 23:27:36,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2021-10-28 23:27:36,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-10-28 23:27:36,288 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:27:36,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:27:36,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1509174966, now seen corresponding path program 12 times [2021-10-28 23:27:36,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:27:36,289 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769481160] [2021-10-28 23:27:36,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:27:36,289 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:27:36,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:27:36,543 INFO L134 CoverageAnalysis]: Checked inductivity of 1292 backedges. 367 proven. 850 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-10-28 23:27:36,543 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:27:36,544 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769481160] [2021-10-28 23:27:36,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769481160] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:36,544 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2012688696] [2021-10-28 23:27:36,544 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-28 23:27:36,545 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:27:36,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:27:36,546 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:27:36,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2021-10-28 23:27:37,599 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2021-10-28 23:27:37,600 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:27:37,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 23:27:37,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:27:38,078 INFO L134 CoverageAnalysis]: Checked inductivity of 1292 backedges. 509 proven. 123 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked. [2021-10-28 23:27:38,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2012688696] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:38,079 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:27:38,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 9] total 28 [2021-10-28 23:27:38,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929608697] [2021-10-28 23:27:38,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-10-28 23:27:38,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:27:38,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-10-28 23:27:38,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2021-10-28 23:27:38,081 INFO L87 Difference]: Start difference. First operand 924 states and 1069 transitions. Second operand has 28 states, 28 states have (on average 5.892857142857143) internal successors, (165), 28 states have internal predecessors, (165), 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) [2021-10-28 23:27:38,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:27:38,239 INFO L93 Difference]: Finished difference Result 1981 states and 2341 transitions. [2021-10-28 23:27:38,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-28 23:27:38,239 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 5.892857142857143) internal successors, (165), 28 states have internal predecessors, (165), 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) Word has length 138 [2021-10-28 23:27:38,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:27:38,244 INFO L225 Difference]: With dead ends: 1981 [2021-10-28 23:27:38,245 INFO L226 Difference]: Without dead ends: 1156 [2021-10-28 23:27:38,246 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2021-10-28 23:27:38,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1156 states. [2021-10-28 23:27:38,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1156 to 1140. [2021-10-28 23:27:38,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1140 states, 1138 states have (on average 1.1581722319859402) internal successors, (1318), 1139 states have internal predecessors, (1318), 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) [2021-10-28 23:27:38,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1140 states to 1140 states and 1318 transitions. [2021-10-28 23:27:38,305 INFO L78 Accepts]: Start accepts. Automaton has 1140 states and 1318 transitions. Word has length 138 [2021-10-28 23:27:38,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:27:38,306 INFO L470 AbstractCegarLoop]: Abstraction has 1140 states and 1318 transitions. [2021-10-28 23:27:38,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 5.892857142857143) internal successors, (165), 28 states have internal predecessors, (165), 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) [2021-10-28 23:27:38,306 INFO L276 IsEmpty]: Start isEmpty. Operand 1140 states and 1318 transitions. [2021-10-28 23:27:38,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-10-28 23:27:38,308 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:27:38,308 INFO L513 BasicCegarLoop]: trace histogram [24, 24, 23, 23, 23, 23, 1, 1] [2021-10-28 23:27:38,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2021-10-28 23:27:38,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-10-28 23:27:38,529 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:27:38,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:27:38,529 INFO L85 PathProgramCache]: Analyzing trace with hash -109005206, now seen corresponding path program 22 times [2021-10-28 23:27:38,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:27:38,529 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513143612] [2021-10-28 23:27:38,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:27:38,530 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:27:38,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:27:38,947 INFO L134 CoverageAnalysis]: Checked inductivity of 1587 backedges. 0 proven. 1587 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:27:38,948 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:27:38,948 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513143612] [2021-10-28 23:27:38,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513143612] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:38,948 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1248732070] [2021-10-28 23:27:38,948 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 23:27:38,948 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:27:38,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:27:38,950 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:27:38,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2021-10-28 23:27:40,016 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 23:27:40,017 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:27:40,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-28 23:27:40,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:27:40,491 INFO L134 CoverageAnalysis]: Checked inductivity of 1587 backedges. 0 proven. 1587 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:27:40,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1248732070] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:40,491 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:27:40,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 24 [2021-10-28 23:27:40,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717240138] [2021-10-28 23:27:40,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-10-28 23:27:40,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:27:40,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-10-28 23:27:40,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2021-10-28 23:27:40,493 INFO L87 Difference]: Start difference. First operand 1140 states and 1318 transitions. Second operand has 26 states, 25 states have (on average 5.68) internal successors, (142), 25 states have internal predecessors, (142), 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) [2021-10-28 23:27:40,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:27:40,709 INFO L93 Difference]: Finished difference Result 2235 states and 2598 transitions. [2021-10-28 23:27:40,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-10-28 23:27:40,710 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 5.68) internal successors, (142), 25 states have internal predecessors, (142), 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) Word has length 142 [2021-10-28 23:27:40,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:27:40,723 INFO L225 Difference]: With dead ends: 2235 [2021-10-28 23:27:40,724 INFO L226 Difference]: Without dead ends: 2234 [2021-10-28 23:27:40,725 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2021-10-28 23:27:40,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2234 states. [2021-10-28 23:27:40,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2234 to 1191. [2021-10-28 23:27:40,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1191 states, 1189 states have (on average 1.1589571068124473) internal successors, (1378), 1190 states have internal predecessors, (1378), 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) [2021-10-28 23:27:40,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1191 states to 1191 states and 1378 transitions. [2021-10-28 23:27:40,776 INFO L78 Accepts]: Start accepts. Automaton has 1191 states and 1378 transitions. Word has length 142 [2021-10-28 23:27:40,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:27:40,776 INFO L470 AbstractCegarLoop]: Abstraction has 1191 states and 1378 transitions. [2021-10-28 23:27:40,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 5.68) internal successors, (142), 25 states have internal predecessors, (142), 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) [2021-10-28 23:27:40,777 INFO L276 IsEmpty]: Start isEmpty. Operand 1191 states and 1378 transitions. [2021-10-28 23:27:40,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-10-28 23:27:40,778 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:27:40,779 INFO L513 BasicCegarLoop]: trace histogram [25, 25, 24, 24, 24, 24, 1, 1] [2021-10-28 23:27:40,830 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2021-10-28 23:27:40,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-10-28 23:27:40,992 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:27:40,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:27:40,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1034378909, now seen corresponding path program 23 times [2021-10-28 23:27:40,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:27:40,993 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65677941] [2021-10-28 23:27:40,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:27:40,993 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:27:41,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:27:41,452 INFO L134 CoverageAnalysis]: Checked inductivity of 1728 backedges. 0 proven. 1728 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:27:41,452 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:27:41,452 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65677941] [2021-10-28 23:27:41,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65677941] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:41,452 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [662286588] [2021-10-28 23:27:41,452 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 23:27:41,453 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:27:41,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:27:41,454 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:27:41,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2021-10-28 23:27:42,613 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 25 check-sat command(s) [2021-10-28 23:27:42,613 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:27:42,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 26 conjunts are in the unsatisfiable core [2021-10-28 23:27:42,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:27:43,104 INFO L134 CoverageAnalysis]: Checked inductivity of 1728 backedges. 0 proven. 1728 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:27:43,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [662286588] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:43,104 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:27:43,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 25 [2021-10-28 23:27:43,104 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128069973] [2021-10-28 23:27:43,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-10-28 23:27:43,107 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:27:43,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-10-28 23:27:43,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2021-10-28 23:27:43,109 INFO L87 Difference]: Start difference. First operand 1191 states and 1378 transitions. Second operand has 27 states, 26 states have (on average 5.6923076923076925) internal successors, (148), 26 states have internal predecessors, (148), 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) [2021-10-28 23:27:43,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:27:43,382 INFO L93 Difference]: Finished difference Result 2339 states and 2720 transitions. [2021-10-28 23:27:43,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-28 23:27:43,383 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 5.6923076923076925) internal successors, (148), 26 states have internal predecessors, (148), 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) Word has length 148 [2021-10-28 23:27:43,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:27:43,397 INFO L225 Difference]: With dead ends: 2339 [2021-10-28 23:27:43,398 INFO L226 Difference]: Without dead ends: 2338 [2021-10-28 23:27:43,399 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2021-10-28 23:27:43,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2338 states. [2021-10-28 23:27:43,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2338 to 1242. [2021-10-28 23:27:43,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1242 states, 1240 states have (on average 1.1596774193548387) internal successors, (1438), 1241 states have internal predecessors, (1438), 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) [2021-10-28 23:27:43,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1242 states to 1242 states and 1438 transitions. [2021-10-28 23:27:43,464 INFO L78 Accepts]: Start accepts. Automaton has 1242 states and 1438 transitions. Word has length 148 [2021-10-28 23:27:43,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:27:43,465 INFO L470 AbstractCegarLoop]: Abstraction has 1242 states and 1438 transitions. [2021-10-28 23:27:43,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 5.6923076923076925) internal successors, (148), 26 states have internal predecessors, (148), 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) [2021-10-28 23:27:43,466 INFO L276 IsEmpty]: Start isEmpty. Operand 1242 states and 1438 transitions. [2021-10-28 23:27:43,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-10-28 23:27:43,468 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:27:43,468 INFO L513 BasicCegarLoop]: trace histogram [26, 26, 25, 25, 25, 25, 1, 1] [2021-10-28 23:27:43,519 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2021-10-28 23:27:43,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:27:43,683 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:27:43,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:27:43,684 INFO L85 PathProgramCache]: Analyzing trace with hash 872983964, now seen corresponding path program 24 times [2021-10-28 23:27:43,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:27:43,684 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716729176] [2021-10-28 23:27:43,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:27:43,684 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:27:43,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:27:44,173 INFO L134 CoverageAnalysis]: Checked inductivity of 1875 backedges. 0 proven. 1875 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:27:44,173 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:27:44,173 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716729176] [2021-10-28 23:27:44,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716729176] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:44,174 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1701488878] [2021-10-28 23:27:44,174 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-28 23:27:44,174 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:27:44,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:27:44,175 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:27:44,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2021-10-28 23:27:45,596 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 26 check-sat command(s) [2021-10-28 23:27:45,596 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:27:45,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-28 23:27:45,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:27:46,068 INFO L134 CoverageAnalysis]: Checked inductivity of 1875 backedges. 0 proven. 1875 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:27:46,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1701488878] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:46,069 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:27:46,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 26 [2021-10-28 23:27:46,069 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807538647] [2021-10-28 23:27:46,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-10-28 23:27:46,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:27:46,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-10-28 23:27:46,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2021-10-28 23:27:46,070 INFO L87 Difference]: Start difference. First operand 1242 states and 1438 transitions. Second operand has 28 states, 27 states have (on average 5.703703703703703) internal successors, (154), 27 states have internal predecessors, (154), 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) [2021-10-28 23:27:46,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:27:46,349 INFO L93 Difference]: Finished difference Result 2443 states and 2842 transitions. [2021-10-28 23:27:46,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-28 23:27:46,349 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 5.703703703703703) internal successors, (154), 27 states have internal predecessors, (154), 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) Word has length 154 [2021-10-28 23:27:46,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:27:46,365 INFO L225 Difference]: With dead ends: 2443 [2021-10-28 23:27:46,365 INFO L226 Difference]: Without dead ends: 2442 [2021-10-28 23:27:46,366 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2021-10-28 23:27:46,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2442 states. [2021-10-28 23:27:46,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2442 to 1293. [2021-10-28 23:27:46,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1293 states, 1291 states have (on average 1.1603408210689388) internal successors, (1498), 1292 states have internal predecessors, (1498), 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) [2021-10-28 23:27:46,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1293 states to 1293 states and 1498 transitions. [2021-10-28 23:27:46,412 INFO L78 Accepts]: Start accepts. Automaton has 1293 states and 1498 transitions. Word has length 154 [2021-10-28 23:27:46,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:27:46,412 INFO L470 AbstractCegarLoop]: Abstraction has 1293 states and 1498 transitions. [2021-10-28 23:27:46,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 5.703703703703703) internal successors, (154), 27 states have internal predecessors, (154), 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) [2021-10-28 23:27:46,413 INFO L276 IsEmpty]: Start isEmpty. Operand 1293 states and 1498 transitions. [2021-10-28 23:27:46,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-10-28 23:27:46,415 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:27:46,434 INFO L513 BasicCegarLoop]: trace histogram [27, 27, 26, 26, 26, 26, 1, 1] [2021-10-28 23:27:46,486 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2021-10-28 23:27:46,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2021-10-28 23:27:46,643 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:27:46,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:27:46,644 INFO L85 PathProgramCache]: Analyzing trace with hash 868412181, now seen corresponding path program 25 times [2021-10-28 23:27:46,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:27:46,644 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628050172] [2021-10-28 23:27:46,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:27:46,644 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:27:46,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:27:47,174 INFO L134 CoverageAnalysis]: Checked inductivity of 2028 backedges. 0 proven. 2028 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:27:47,174 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:27:47,174 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628050172] [2021-10-28 23:27:47,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628050172] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:47,175 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [798134503] [2021-10-28 23:27:47,175 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-28 23:27:47,175 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:27:47,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:27:47,176 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:27:47,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2021-10-28 23:27:48,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:27:48,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 28 conjunts are in the unsatisfiable core [2021-10-28 23:27:48,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:27:48,914 INFO L134 CoverageAnalysis]: Checked inductivity of 2028 backedges. 0 proven. 2028 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:27:48,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [798134503] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:48,914 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:27:48,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 27 [2021-10-28 23:27:48,915 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229810449] [2021-10-28 23:27:48,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-10-28 23:27:48,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:27:48,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-10-28 23:27:48,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=406, Invalid=406, Unknown=0, NotChecked=0, Total=812 [2021-10-28 23:27:48,917 INFO L87 Difference]: Start difference. First operand 1293 states and 1498 transitions. Second operand has 29 states, 28 states have (on average 5.714285714285714) internal successors, (160), 28 states have internal predecessors, (160), 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) [2021-10-28 23:27:49,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:27:49,219 INFO L93 Difference]: Finished difference Result 2547 states and 2964 transitions. [2021-10-28 23:27:49,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-10-28 23:27:49,220 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 5.714285714285714) internal successors, (160), 28 states have internal predecessors, (160), 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) Word has length 160 [2021-10-28 23:27:49,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:27:49,240 INFO L225 Difference]: With dead ends: 2547 [2021-10-28 23:27:49,250 INFO L226 Difference]: Without dead ends: 2546 [2021-10-28 23:27:49,252 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=406, Invalid=406, Unknown=0, NotChecked=0, Total=812 [2021-10-28 23:27:49,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2546 states. [2021-10-28 23:27:49,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2546 to 1344. [2021-10-28 23:27:49,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1344 states, 1342 states have (on average 1.1609538002980626) internal successors, (1558), 1343 states have internal predecessors, (1558), 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) [2021-10-28 23:27:49,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1344 states to 1344 states and 1558 transitions. [2021-10-28 23:27:49,297 INFO L78 Accepts]: Start accepts. Automaton has 1344 states and 1558 transitions. Word has length 160 [2021-10-28 23:27:49,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:27:49,298 INFO L470 AbstractCegarLoop]: Abstraction has 1344 states and 1558 transitions. [2021-10-28 23:27:49,298 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 5.714285714285714) internal successors, (160), 28 states have internal predecessors, (160), 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) [2021-10-28 23:27:49,299 INFO L276 IsEmpty]: Start isEmpty. Operand 1344 states and 1558 transitions. [2021-10-28 23:27:49,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2021-10-28 23:27:49,301 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:27:49,301 INFO L513 BasicCegarLoop]: trace histogram [27, 26, 26, 19, 19, 19, 8, 8, 8, 1, 1] [2021-10-28 23:27:49,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2021-10-28 23:27:49,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2021-10-28 23:27:49,517 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:27:49,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:27:49,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1355830898, now seen corresponding path program 13 times [2021-10-28 23:27:49,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:27:49,518 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738476632] [2021-10-28 23:27:49,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:27:49,518 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:27:49,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:27:49,895 INFO L134 CoverageAnalysis]: Checked inductivity of 1776 backedges. 565 proven. 1064 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2021-10-28 23:27:49,896 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:27:49,896 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738476632] [2021-10-28 23:27:49,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738476632] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:49,896 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [248918329] [2021-10-28 23:27:49,896 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-28 23:27:49,896 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:27:49,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:27:49,898 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:27:49,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2021-10-28 23:27:51,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:27:51,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-28 23:27:51,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:27:51,638 INFO L134 CoverageAnalysis]: Checked inductivity of 1776 backedges. 565 proven. 1064 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2021-10-28 23:27:51,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [248918329] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:51,638 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:27:51,638 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 21 [2021-10-28 23:27:51,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567720545] [2021-10-28 23:27:51,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-28 23:27:51,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:27:51,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-28 23:27:51,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2021-10-28 23:27:51,641 INFO L87 Difference]: Start difference. First operand 1344 states and 1558 transitions. Second operand has 22 states, 22 states have (on average 5.636363636363637) internal successors, (124), 21 states have internal predecessors, (124), 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) [2021-10-28 23:27:51,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:27:51,799 INFO L93 Difference]: Finished difference Result 2587 states and 3016 transitions. [2021-10-28 23:27:51,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-28 23:27:51,801 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.636363636363637) internal successors, (124), 21 states have internal predecessors, (124), 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) Word has length 162 [2021-10-28 23:27:51,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:27:51,805 INFO L225 Difference]: With dead ends: 2587 [2021-10-28 23:27:51,805 INFO L226 Difference]: Without dead ends: 1354 [2021-10-28 23:27:51,807 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2021-10-28 23:27:51,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1354 states. [2021-10-28 23:27:51,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1354 to 1350. [2021-10-28 23:27:51,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1350 states, 1348 states have (on average 1.1602373887240356) internal successors, (1564), 1349 states have internal predecessors, (1564), 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) [2021-10-28 23:27:51,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1350 states to 1350 states and 1564 transitions. [2021-10-28 23:27:51,846 INFO L78 Accepts]: Start accepts. Automaton has 1350 states and 1564 transitions. Word has length 162 [2021-10-28 23:27:51,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:27:51,846 INFO L470 AbstractCegarLoop]: Abstraction has 1350 states and 1564 transitions. [2021-10-28 23:27:51,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.636363636363637) internal successors, (124), 21 states have internal predecessors, (124), 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) [2021-10-28 23:27:51,847 INFO L276 IsEmpty]: Start isEmpty. Operand 1350 states and 1564 transitions. [2021-10-28 23:27:51,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-10-28 23:27:51,849 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:27:51,849 INFO L513 BasicCegarLoop]: trace histogram [28, 28, 27, 27, 27, 27, 1, 1] [2021-10-28 23:27:51,903 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2021-10-28 23:27:52,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2021-10-28 23:27:52,075 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:27:52,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:27:52,076 INFO L85 PathProgramCache]: Analyzing trace with hash -588420658, now seen corresponding path program 26 times [2021-10-28 23:27:52,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:27:52,076 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826054061] [2021-10-28 23:27:52,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:27:52,076 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:27:52,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:27:52,609 INFO L134 CoverageAnalysis]: Checked inductivity of 2187 backedges. 0 proven. 2187 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:27:52,609 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:27:52,610 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826054061] [2021-10-28 23:27:52,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826054061] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:52,610 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [779014978] [2021-10-28 23:27:52,610 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:27:52,610 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:27:52,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:27:52,615 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:27:52,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2021-10-28 23:27:53,932 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 23:27:53,932 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:27:53,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 29 conjunts are in the unsatisfiable core [2021-10-28 23:27:53,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:27:54,430 INFO L134 CoverageAnalysis]: Checked inductivity of 2187 backedges. 0 proven. 2187 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:27:54,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [779014978] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:54,430 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:27:54,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28] total 28 [2021-10-28 23:27:54,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498674454] [2021-10-28 23:27:54,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-10-28 23:27:54,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:27:54,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-10-28 23:27:54,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=435, Invalid=435, Unknown=0, NotChecked=0, Total=870 [2021-10-28 23:27:54,433 INFO L87 Difference]: Start difference. First operand 1350 states and 1564 transitions. Second operand has 30 states, 29 states have (on average 5.724137931034483) internal successors, (166), 29 states have internal predecessors, (166), 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) [2021-10-28 23:27:54,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:27:54,715 INFO L93 Difference]: Finished difference Result 2657 states and 3092 transitions. [2021-10-28 23:27:54,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-10-28 23:27:54,716 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 5.724137931034483) internal successors, (166), 29 states have internal predecessors, (166), 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) Word has length 166 [2021-10-28 23:27:54,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:27:54,722 INFO L225 Difference]: With dead ends: 2657 [2021-10-28 23:27:54,722 INFO L226 Difference]: Without dead ends: 2656 [2021-10-28 23:27:54,723 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=435, Invalid=435, Unknown=0, NotChecked=0, Total=870 [2021-10-28 23:27:54,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2656 states. [2021-10-28 23:27:54,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2656 to 1401. [2021-10-28 23:27:54,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1401 states, 1399 states have (on average 1.1608291636883488) internal successors, (1624), 1400 states have internal predecessors, (1624), 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) [2021-10-28 23:27:54,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1401 states to 1401 states and 1624 transitions. [2021-10-28 23:27:54,770 INFO L78 Accepts]: Start accepts. Automaton has 1401 states and 1624 transitions. Word has length 166 [2021-10-28 23:27:54,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:27:54,771 INFO L470 AbstractCegarLoop]: Abstraction has 1401 states and 1624 transitions. [2021-10-28 23:27:54,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 5.724137931034483) internal successors, (166), 29 states have internal predecessors, (166), 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) [2021-10-28 23:27:54,771 INFO L276 IsEmpty]: Start isEmpty. Operand 1401 states and 1624 transitions. [2021-10-28 23:27:54,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-10-28 23:27:54,773 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:27:54,773 INFO L513 BasicCegarLoop]: trace histogram [28, 27, 27, 20, 20, 20, 8, 8, 8, 1, 1] [2021-10-28 23:27:54,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2021-10-28 23:27:54,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2021-10-28 23:27:54,987 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:27:54,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:27:54,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1212850681, now seen corresponding path program 14 times [2021-10-28 23:27:54,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:27:54,987 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746947468] [2021-10-28 23:27:54,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:27:54,988 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:27:55,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:27:55,373 INFO L134 CoverageAnalysis]: Checked inductivity of 1921 backedges. 594 proven. 1180 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2021-10-28 23:27:55,373 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:27:55,373 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746947468] [2021-10-28 23:27:55,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746947468] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:55,374 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1640915419] [2021-10-28 23:27:55,374 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:27:55,374 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:27:55,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:27:55,375 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:27:55,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2021-10-28 23:27:56,775 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 23:27:56,775 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:27:56,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-28 23:27:56,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:27:57,283 INFO L134 CoverageAnalysis]: Checked inductivity of 1921 backedges. 594 proven. 1180 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2021-10-28 23:27:57,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1640915419] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:57,284 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:27:57,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 22 [2021-10-28 23:27:57,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498394846] [2021-10-28 23:27:57,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-28 23:27:57,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:27:57,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-28 23:27:57,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2021-10-28 23:27:57,286 INFO L87 Difference]: Start difference. First operand 1401 states and 1624 transitions. Second operand has 23 states, 23 states have (on average 5.6521739130434785) internal successors, (130), 22 states have internal predecessors, (130), 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) [2021-10-28 23:27:57,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:27:57,376 INFO L93 Difference]: Finished difference Result 2695 states and 3142 transitions. [2021-10-28 23:27:57,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-28 23:27:57,377 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 5.6521739130434785) internal successors, (130), 22 states have internal predecessors, (130), 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) Word has length 168 [2021-10-28 23:27:57,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:27:57,380 INFO L225 Difference]: With dead ends: 2695 [2021-10-28 23:27:57,381 INFO L226 Difference]: Without dead ends: 1411 [2021-10-28 23:27:57,383 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2021-10-28 23:27:57,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1411 states. [2021-10-28 23:27:57,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1411 to 1407. [2021-10-28 23:27:57,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1407 states, 1405 states have (on average 1.1601423487544484) internal successors, (1630), 1406 states have internal predecessors, (1630), 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) [2021-10-28 23:27:57,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1407 states to 1407 states and 1630 transitions. [2021-10-28 23:27:57,436 INFO L78 Accepts]: Start accepts. Automaton has 1407 states and 1630 transitions. Word has length 168 [2021-10-28 23:27:57,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:27:57,437 INFO L470 AbstractCegarLoop]: Abstraction has 1407 states and 1630 transitions. [2021-10-28 23:27:57,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.6521739130434785) internal successors, (130), 22 states have internal predecessors, (130), 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) [2021-10-28 23:27:57,437 INFO L276 IsEmpty]: Start isEmpty. Operand 1407 states and 1630 transitions. [2021-10-28 23:27:57,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-10-28 23:27:57,440 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:27:57,440 INFO L513 BasicCegarLoop]: trace histogram [29, 29, 28, 28, 28, 28, 1, 1] [2021-10-28 23:27:57,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2021-10-28 23:27:57,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2021-10-28 23:27:57,667 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:27:57,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:27:57,668 INFO L85 PathProgramCache]: Analyzing trace with hash 170015175, now seen corresponding path program 27 times [2021-10-28 23:27:57,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:27:57,668 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593712759] [2021-10-28 23:27:57,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:27:57,669 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:27:57,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:27:58,248 INFO L134 CoverageAnalysis]: Checked inductivity of 2352 backedges. 0 proven. 2352 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:27:58,248 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:27:58,249 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593712759] [2021-10-28 23:27:58,249 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593712759] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:27:58,249 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [837320516] [2021-10-28 23:27:58,249 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 23:27:58,249 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:27:58,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:27:58,251 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:27:58,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2021-10-28 23:27:59,795 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 29 check-sat command(s) [2021-10-28 23:27:59,795 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:27:59,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 30 conjunts are in the unsatisfiable core [2021-10-28 23:27:59,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:28:00,346 INFO L134 CoverageAnalysis]: Checked inductivity of 2352 backedges. 0 proven. 2352 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:28:00,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [837320516] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:28:00,347 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:28:00,347 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29] total 29 [2021-10-28 23:28:00,347 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548180410] [2021-10-28 23:28:00,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-10-28 23:28:00,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:28:00,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-10-28 23:28:00,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=465, Invalid=465, Unknown=0, NotChecked=0, Total=930 [2021-10-28 23:28:00,350 INFO L87 Difference]: Start difference. First operand 1407 states and 1630 transitions. Second operand has 31 states, 30 states have (on average 5.733333333333333) internal successors, (172), 30 states have internal predecessors, (172), 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) [2021-10-28 23:28:00,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:28:00,650 INFO L93 Difference]: Finished difference Result 2767 states and 3220 transitions. [2021-10-28 23:28:00,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-10-28 23:28:00,650 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 5.733333333333333) internal successors, (172), 30 states have internal predecessors, (172), 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) Word has length 172 [2021-10-28 23:28:00,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:28:00,657 INFO L225 Difference]: With dead ends: 2767 [2021-10-28 23:28:00,657 INFO L226 Difference]: Without dead ends: 2766 [2021-10-28 23:28:00,658 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=465, Invalid=465, Unknown=0, NotChecked=0, Total=930 [2021-10-28 23:28:00,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2766 states. [2021-10-28 23:28:00,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2766 to 1458. [2021-10-28 23:28:00,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1458 states, 1456 states have (on average 1.1607142857142858) internal successors, (1690), 1457 states have internal predecessors, (1690), 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) [2021-10-28 23:28:00,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1458 states to 1458 states and 1690 transitions. [2021-10-28 23:28:00,740 INFO L78 Accepts]: Start accepts. Automaton has 1458 states and 1690 transitions. Word has length 172 [2021-10-28 23:28:00,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:28:00,741 INFO L470 AbstractCegarLoop]: Abstraction has 1458 states and 1690 transitions. [2021-10-28 23:28:00,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 5.733333333333333) internal successors, (172), 30 states have internal predecessors, (172), 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) [2021-10-28 23:28:00,741 INFO L276 IsEmpty]: Start isEmpty. Operand 1458 states and 1690 transitions. [2021-10-28 23:28:00,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-10-28 23:28:00,744 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:28:00,744 INFO L513 BasicCegarLoop]: trace histogram [29, 28, 28, 21, 21, 21, 8, 8, 8, 1, 1] [2021-10-28 23:28:00,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2021-10-28 23:28:00,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2021-10-28 23:28:00,967 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:28:00,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:28:00,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1794511808, now seen corresponding path program 15 times [2021-10-28 23:28:00,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:28:00,968 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197484904] [2021-10-28 23:28:00,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:28:00,968 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:28:00,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:28:01,329 INFO L134 CoverageAnalysis]: Checked inductivity of 2072 backedges. 623 proven. 1302 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2021-10-28 23:28:01,329 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:28:01,329 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197484904] [2021-10-28 23:28:01,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197484904] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:28:01,330 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1969236751] [2021-10-28 23:28:01,330 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 23:28:01,330 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:28:01,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:28:01,331 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:28:01,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2021-10-28 23:28:02,766 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2021-10-28 23:28:02,766 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:28:02,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 23:28:02,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:28:03,638 INFO L134 CoverageAnalysis]: Checked inductivity of 2072 backedges. 797 proven. 211 refuted. 0 times theorem prover too weak. 1064 trivial. 0 not checked. [2021-10-28 23:28:03,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1969236751] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:28:03,639 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:28:03,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 11] total 34 [2021-10-28 23:28:03,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227440925] [2021-10-28 23:28:03,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-10-28 23:28:03,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:28:03,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-10-28 23:28:03,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=561, Invalid=561, Unknown=0, NotChecked=0, Total=1122 [2021-10-28 23:28:03,641 INFO L87 Difference]: Start difference. First operand 1458 states and 1690 transitions. Second operand has 34 states, 34 states have (on average 5.911764705882353) internal successors, (201), 34 states have internal predecessors, (201), 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) [2021-10-28 23:28:03,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:28:03,863 INFO L93 Difference]: Finished difference Result 3077 states and 3627 transitions. [2021-10-28 23:28:03,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-28 23:28:03,864 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 5.911764705882353) internal successors, (201), 34 states have internal predecessors, (201), 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) Word has length 174 [2021-10-28 23:28:03,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:28:03,868 INFO L225 Difference]: With dead ends: 3077 [2021-10-28 23:28:03,868 INFO L226 Difference]: Without dead ends: 1742 [2021-10-28 23:28:03,872 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=561, Invalid=561, Unknown=0, NotChecked=0, Total=1122 [2021-10-28 23:28:03,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1742 states. [2021-10-28 23:28:03,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1742 to 1722. [2021-10-28 23:28:03,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1722 states, 1720 states have (on average 1.1598837209302326) internal successors, (1995), 1721 states have internal predecessors, (1995), 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) [2021-10-28 23:28:03,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1722 states to 1722 states and 1995 transitions. [2021-10-28 23:28:03,925 INFO L78 Accepts]: Start accepts. Automaton has 1722 states and 1995 transitions. Word has length 174 [2021-10-28 23:28:03,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:28:03,925 INFO L470 AbstractCegarLoop]: Abstraction has 1722 states and 1995 transitions. [2021-10-28 23:28:03,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 5.911764705882353) internal successors, (201), 34 states have internal predecessors, (201), 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) [2021-10-28 23:28:03,926 INFO L276 IsEmpty]: Start isEmpty. Operand 1722 states and 1995 transitions. [2021-10-28 23:28:03,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-10-28 23:28:03,929 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:28:03,929 INFO L513 BasicCegarLoop]: trace histogram [30, 30, 29, 29, 29, 29, 1, 1] [2021-10-28 23:28:03,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2021-10-28 23:28:04,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2021-10-28 23:28:04,143 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:28:04,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:28:04,144 INFO L85 PathProgramCache]: Analyzing trace with hash 506424064, now seen corresponding path program 28 times [2021-10-28 23:28:04,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:28:04,144 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123258300] [2021-10-28 23:28:04,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:28:04,144 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:28:04,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:28:04,798 INFO L134 CoverageAnalysis]: Checked inductivity of 2523 backedges. 0 proven. 2523 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:28:04,799 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:28:04,799 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123258300] [2021-10-28 23:28:04,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123258300] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:28:04,799 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1086709703] [2021-10-28 23:28:04,799 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 23:28:04,800 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:28:04,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:28:04,807 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:28:04,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2021-10-28 23:28:06,349 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 23:28:06,349 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:28:06,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 31 conjunts are in the unsatisfiable core [2021-10-28 23:28:06,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:28:06,966 INFO L134 CoverageAnalysis]: Checked inductivity of 2523 backedges. 0 proven. 2523 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:28:06,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1086709703] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:28:06,967 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:28:06,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30] total 30 [2021-10-28 23:28:06,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914722428] [2021-10-28 23:28:06,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-10-28 23:28:06,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:28:06,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-10-28 23:28:06,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2021-10-28 23:28:06,969 INFO L87 Difference]: Start difference. First operand 1722 states and 1995 transitions. Second operand has 32 states, 31 states have (on average 5.741935483870968) internal successors, (178), 31 states have internal predecessors, (178), 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) [2021-10-28 23:28:07,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:28:07,222 INFO L93 Difference]: Finished difference Result 3393 states and 3948 transitions. [2021-10-28 23:28:07,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-10-28 23:28:07,222 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 5.741935483870968) internal successors, (178), 31 states have internal predecessors, (178), 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) Word has length 178 [2021-10-28 23:28:07,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:28:07,227 INFO L225 Difference]: With dead ends: 3393 [2021-10-28 23:28:07,227 INFO L226 Difference]: Without dead ends: 3392 [2021-10-28 23:28:07,229 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2021-10-28 23:28:07,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3392 states. [2021-10-28 23:28:07,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3392 to 1785. [2021-10-28 23:28:07,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1785 states, 1783 states have (on average 1.1604038137969714) internal successors, (2069), 1784 states have internal predecessors, (2069), 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) [2021-10-28 23:28:07,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1785 states to 1785 states and 2069 transitions. [2021-10-28 23:28:07,278 INFO L78 Accepts]: Start accepts. Automaton has 1785 states and 2069 transitions. Word has length 178 [2021-10-28 23:28:07,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:28:07,279 INFO L470 AbstractCegarLoop]: Abstraction has 1785 states and 2069 transitions. [2021-10-28 23:28:07,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 5.741935483870968) internal successors, (178), 31 states have internal predecessors, (178), 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) [2021-10-28 23:28:07,279 INFO L276 IsEmpty]: Start isEmpty. Operand 1785 states and 2069 transitions. [2021-10-28 23:28:07,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-10-28 23:28:07,281 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:28:07,282 INFO L513 BasicCegarLoop]: trace histogram [31, 31, 30, 30, 30, 30, 1, 1] [2021-10-28 23:28:07,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2021-10-28 23:28:07,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48,45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:28:07,507 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:28:07,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:28:07,508 INFO L85 PathProgramCache]: Analyzing trace with hash 219614585, now seen corresponding path program 29 times [2021-10-28 23:28:07,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:28:07,508 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773796588] [2021-10-28 23:28:07,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:28:07,508 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:28:07,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:28:08,217 INFO L134 CoverageAnalysis]: Checked inductivity of 2700 backedges. 0 proven. 2700 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:28:08,217 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:28:08,217 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773796588] [2021-10-28 23:28:08,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773796588] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:28:08,218 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [732588941] [2021-10-28 23:28:08,218 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 23:28:08,218 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:28:08,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:28:08,223 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:28:08,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2021-10-28 23:28:09,942 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 31 check-sat command(s) [2021-10-28 23:28:09,942 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:28:09,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 32 conjunts are in the unsatisfiable core [2021-10-28 23:28:09,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:28:10,552 INFO L134 CoverageAnalysis]: Checked inductivity of 2700 backedges. 0 proven. 2700 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:28:10,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [732588941] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:28:10,555 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:28:10,556 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31] total 31 [2021-10-28 23:28:10,556 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678261197] [2021-10-28 23:28:10,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-10-28 23:28:10,557 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:28:10,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-10-28 23:28:10,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2021-10-28 23:28:10,558 INFO L87 Difference]: Start difference. First operand 1785 states and 2069 transitions. Second operand has 33 states, 32 states have (on average 5.75) internal successors, (184), 32 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) [2021-10-28 23:28:10,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:28:10,825 INFO L93 Difference]: Finished difference Result 3521 states and 4098 transitions. [2021-10-28 23:28:10,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-10-28 23:28:10,826 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 5.75) internal successors, (184), 32 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) Word has length 184 [2021-10-28 23:28:10,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:28:10,834 INFO L225 Difference]: With dead ends: 3521 [2021-10-28 23:28:10,834 INFO L226 Difference]: Without dead ends: 3520 [2021-10-28 23:28:10,836 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2021-10-28 23:28:10,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3520 states. [2021-10-28 23:28:10,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3520 to 1848. [2021-10-28 23:28:10,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1848 states, 1846 states have (on average 1.1608884073672807) internal successors, (2143), 1847 states have internal predecessors, (2143), 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) [2021-10-28 23:28:10,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1848 states to 1848 states and 2143 transitions. [2021-10-28 23:28:10,912 INFO L78 Accepts]: Start accepts. Automaton has 1848 states and 2143 transitions. Word has length 184 [2021-10-28 23:28:10,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:28:10,912 INFO L470 AbstractCegarLoop]: Abstraction has 1848 states and 2143 transitions. [2021-10-28 23:28:10,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 5.75) internal successors, (184), 32 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) [2021-10-28 23:28:10,913 INFO L276 IsEmpty]: Start isEmpty. Operand 1848 states and 2143 transitions. [2021-10-28 23:28:10,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2021-10-28 23:28:10,915 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:28:10,915 INFO L513 BasicCegarLoop]: trace histogram [32, 32, 31, 31, 31, 31, 1, 1] [2021-10-28 23:28:10,971 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Forceful destruction successful, exit code 0 [2021-10-28 23:28:11,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2021-10-28 23:28:11,131 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:28:11,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:28:11,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1525731022, now seen corresponding path program 30 times [2021-10-28 23:28:11,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:28:11,132 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87030953] [2021-10-28 23:28:11,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:28:11,132 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:28:11,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:28:11,889 INFO L134 CoverageAnalysis]: Checked inductivity of 2883 backedges. 0 proven. 2883 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:28:11,889 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:28:11,889 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87030953] [2021-10-28 23:28:11,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87030953] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:28:11,890 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [915160989] [2021-10-28 23:28:11,890 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-28 23:28:11,890 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:28:11,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:28:11,892 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:28:11,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2021-10-28 23:28:13,772 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 32 check-sat command(s) [2021-10-28 23:28:13,772 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:28:13,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 33 conjunts are in the unsatisfiable core [2021-10-28 23:28:13,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:28:14,410 INFO L134 CoverageAnalysis]: Checked inductivity of 2883 backedges. 0 proven. 2883 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:28:14,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [915160989] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:28:14,411 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:28:14,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32] total 32 [2021-10-28 23:28:14,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091439239] [2021-10-28 23:28:14,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-10-28 23:28:14,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:28:14,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-10-28 23:28:14,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=561, Invalid=561, Unknown=0, NotChecked=0, Total=1122 [2021-10-28 23:28:14,413 INFO L87 Difference]: Start difference. First operand 1848 states and 2143 transitions. Second operand has 34 states, 33 states have (on average 5.757575757575758) internal successors, (190), 33 states have internal predecessors, (190), 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) [2021-10-28 23:28:14,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:28:14,783 INFO L93 Difference]: Finished difference Result 3649 states and 4248 transitions. [2021-10-28 23:28:14,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-28 23:28:14,784 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 5.757575757575758) internal successors, (190), 33 states have internal predecessors, (190), 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) Word has length 190 [2021-10-28 23:28:14,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:28:14,793 INFO L225 Difference]: With dead ends: 3649 [2021-10-28 23:28:14,794 INFO L226 Difference]: Without dead ends: 3648 [2021-10-28 23:28:14,796 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=561, Invalid=561, Unknown=0, NotChecked=0, Total=1122 [2021-10-28 23:28:14,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3648 states. [2021-10-28 23:28:14,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3648 to 1911. [2021-10-28 23:28:14,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1911 states, 1909 states have (on average 1.1613410162388684) internal successors, (2217), 1910 states have internal predecessors, (2217), 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) [2021-10-28 23:28:14,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1911 states to 1911 states and 2217 transitions. [2021-10-28 23:28:14,858 INFO L78 Accepts]: Start accepts. Automaton has 1911 states and 2217 transitions. Word has length 190 [2021-10-28 23:28:14,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:28:14,858 INFO L470 AbstractCegarLoop]: Abstraction has 1911 states and 2217 transitions. [2021-10-28 23:28:14,859 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 5.757575757575758) internal successors, (190), 33 states have internal predecessors, (190), 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) [2021-10-28 23:28:14,860 INFO L276 IsEmpty]: Start isEmpty. Operand 1911 states and 2217 transitions. [2021-10-28 23:28:14,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2021-10-28 23:28:14,862 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:28:14,862 INFO L513 BasicCegarLoop]: trace histogram [33, 33, 32, 32, 32, 32, 1, 1] [2021-10-28 23:28:14,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Forceful destruction successful, exit code 0 [2021-10-28 23:28:15,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable50 [2021-10-28 23:28:15,075 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:28:15,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:28:15,076 INFO L85 PathProgramCache]: Analyzing trace with hash 394389035, now seen corresponding path program 31 times [2021-10-28 23:28:15,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:28:15,076 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272970924] [2021-10-28 23:28:15,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:28:15,076 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:28:15,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:28:15,889 INFO L134 CoverageAnalysis]: Checked inductivity of 3072 backedges. 0 proven. 3072 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:28:15,889 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:28:15,889 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272970924] [2021-10-28 23:28:15,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272970924] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:28:15,890 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264785660] [2021-10-28 23:28:15,890 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-28 23:28:15,890 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:28:15,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:28:15,891 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:28:15,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2021-10-28 23:28:17,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:28:17,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 34 conjunts are in the unsatisfiable core [2021-10-28 23:28:17,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:28:18,385 INFO L134 CoverageAnalysis]: Checked inductivity of 3072 backedges. 0 proven. 3072 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:28:18,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1264785660] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:28:18,385 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:28:18,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 33 [2021-10-28 23:28:18,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792961293] [2021-10-28 23:28:18,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2021-10-28 23:28:18,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:28:18,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-10-28 23:28:18,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=595, Invalid=595, Unknown=0, NotChecked=0, Total=1190 [2021-10-28 23:28:18,389 INFO L87 Difference]: Start difference. First operand 1911 states and 2217 transitions. Second operand has 35 states, 34 states have (on average 5.764705882352941) internal successors, (196), 34 states have internal predecessors, (196), 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) [2021-10-28 23:28:18,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:28:18,772 INFO L93 Difference]: Finished difference Result 3777 states and 4398 transitions. [2021-10-28 23:28:18,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-10-28 23:28:18,772 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 5.764705882352941) internal successors, (196), 34 states have internal predecessors, (196), 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) Word has length 196 [2021-10-28 23:28:18,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:28:18,782 INFO L225 Difference]: With dead ends: 3777 [2021-10-28 23:28:18,782 INFO L226 Difference]: Without dead ends: 3776 [2021-10-28 23:28:18,784 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=595, Invalid=595, Unknown=0, NotChecked=0, Total=1190 [2021-10-28 23:28:18,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3776 states. [2021-10-28 23:28:18,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3776 to 1974. [2021-10-28 23:28:18,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1974 states, 1972 states have (on average 1.161764705882353) internal successors, (2291), 1973 states have internal predecessors, (2291), 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) [2021-10-28 23:28:18,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1974 states to 1974 states and 2291 transitions. [2021-10-28 23:28:18,847 INFO L78 Accepts]: Start accepts. Automaton has 1974 states and 2291 transitions. Word has length 196 [2021-10-28 23:28:18,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:28:18,848 INFO L470 AbstractCegarLoop]: Abstraction has 1974 states and 2291 transitions. [2021-10-28 23:28:18,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 5.764705882352941) internal successors, (196), 34 states have internal predecessors, (196), 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) [2021-10-28 23:28:18,848 INFO L276 IsEmpty]: Start isEmpty. Operand 1974 states and 2291 transitions. [2021-10-28 23:28:18,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-10-28 23:28:18,851 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:28:18,851 INFO L513 BasicCegarLoop]: trace histogram [33, 32, 32, 23, 23, 23, 10, 10, 10, 1, 1] [2021-10-28 23:28:18,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Forceful destruction successful, exit code 0 [2021-10-28 23:28:19,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2021-10-28 23:28:19,072 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:28:19,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:28:19,072 INFO L85 PathProgramCache]: Analyzing trace with hash 666443416, now seen corresponding path program 16 times [2021-10-28 23:28:19,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:28:19,072 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653911718] [2021-10-28 23:28:19,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:28:19,073 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:28:19,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:28:19,469 INFO L134 CoverageAnalysis]: Checked inductivity of 2676 backedges. 869 proven. 1564 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-10-28 23:28:19,469 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:28:19,470 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653911718] [2021-10-28 23:28:19,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653911718] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:28:19,470 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1905948362] [2021-10-28 23:28:19,470 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 23:28:19,470 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:28:19,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:28:19,471 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:28:19,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2021-10-28 23:28:21,356 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 23:28:21,356 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:28:21,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-28 23:28:21,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:28:22,017 INFO L134 CoverageAnalysis]: Checked inductivity of 2676 backedges. 869 proven. 1564 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-10-28 23:28:22,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1905948362] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:28:22,018 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:28:22,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 25 [2021-10-28 23:28:22,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537665581] [2021-10-28 23:28:22,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-10-28 23:28:22,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:28:22,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-10-28 23:28:22,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2021-10-28 23:28:22,020 INFO L87 Difference]: Start difference. First operand 1974 states and 2291 transitions. Second operand has 26 states, 26 states have (on average 5.6923076923076925) internal successors, (148), 25 states have internal predecessors, (148), 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) [2021-10-28 23:28:22,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:28:22,130 INFO L93 Difference]: Finished difference Result 3823 states and 4458 transitions. [2021-10-28 23:28:22,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-10-28 23:28:22,151 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.6923076923076925) internal successors, (148), 25 states have internal predecessors, (148), 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) Word has length 198 [2021-10-28 23:28:22,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:28:22,155 INFO L225 Difference]: With dead ends: 3823 [2021-10-28 23:28:22,155 INFO L226 Difference]: Without dead ends: 1984 [2021-10-28 23:28:22,158 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2021-10-28 23:28:22,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1984 states. [2021-10-28 23:28:22,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1984 to 1980. [2021-10-28 23:28:22,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1980 states, 1978 states have (on average 1.1612740141557127) internal successors, (2297), 1979 states have internal predecessors, (2297), 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) [2021-10-28 23:28:22,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1980 states to 1980 states and 2297 transitions. [2021-10-28 23:28:22,217 INFO L78 Accepts]: Start accepts. Automaton has 1980 states and 2297 transitions. Word has length 198 [2021-10-28 23:28:22,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:28:22,217 INFO L470 AbstractCegarLoop]: Abstraction has 1980 states and 2297 transitions. [2021-10-28 23:28:22,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.6923076923076925) internal successors, (148), 25 states have internal predecessors, (148), 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) [2021-10-28 23:28:22,218 INFO L276 IsEmpty]: Start isEmpty. Operand 1980 states and 2297 transitions. [2021-10-28 23:28:22,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2021-10-28 23:28:22,221 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:28:22,222 INFO L513 BasicCegarLoop]: trace histogram [34, 34, 33, 33, 33, 33, 1, 1] [2021-10-28 23:28:22,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Forceful destruction successful, exit code 0 [2021-10-28 23:28:22,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:28:22,435 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:28:22,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:28:22,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1039319964, now seen corresponding path program 32 times [2021-10-28 23:28:22,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:28:22,436 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936054291] [2021-10-28 23:28:22,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:28:22,437 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:28:22,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:28:23,165 INFO L134 CoverageAnalysis]: Checked inductivity of 3267 backedges. 0 proven. 3267 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:28:23,165 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:28:23,165 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936054291] [2021-10-28 23:28:23,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936054291] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:28:23,166 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [433249479] [2021-10-28 23:28:23,166 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:28:23,166 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:28:23,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:28:23,192 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:28:23,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2021-10-28 23:28:25,087 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 23:28:25,087 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:28:25,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 35 conjunts are in the unsatisfiable core [2021-10-28 23:28:25,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:28:25,683 INFO L134 CoverageAnalysis]: Checked inductivity of 3267 backedges. 0 proven. 3267 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:28:25,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [433249479] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:28:25,684 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:28:25,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34] total 34 [2021-10-28 23:28:25,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380491782] [2021-10-28 23:28:25,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2021-10-28 23:28:25,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:28:25,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-10-28 23:28:25,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=630, Invalid=630, Unknown=0, NotChecked=0, Total=1260 [2021-10-28 23:28:25,686 INFO L87 Difference]: Start difference. First operand 1980 states and 2297 transitions. Second operand has 36 states, 35 states have (on average 5.771428571428571) internal successors, (202), 35 states have internal predecessors, (202), 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) [2021-10-28 23:28:26,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:28:26,135 INFO L93 Difference]: Finished difference Result 3911 states and 4554 transitions. [2021-10-28 23:28:26,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-28 23:28:26,136 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 5.771428571428571) internal successors, (202), 35 states have internal predecessors, (202), 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) Word has length 202 [2021-10-28 23:28:26,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:28:26,141 INFO L225 Difference]: With dead ends: 3911 [2021-10-28 23:28:26,142 INFO L226 Difference]: Without dead ends: 3910 [2021-10-28 23:28:26,143 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=630, Invalid=630, Unknown=0, NotChecked=0, Total=1260 [2021-10-28 23:28:26,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3910 states. [2021-10-28 23:28:26,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3910 to 2043. [2021-10-28 23:28:26,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2043 states, 2041 states have (on average 1.1616854483096521) internal successors, (2371), 2042 states have internal predecessors, (2371), 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) [2021-10-28 23:28:26,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2043 states to 2043 states and 2371 transitions. [2021-10-28 23:28:26,193 INFO L78 Accepts]: Start accepts. Automaton has 2043 states and 2371 transitions. Word has length 202 [2021-10-28 23:28:26,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:28:26,193 INFO L470 AbstractCegarLoop]: Abstraction has 2043 states and 2371 transitions. [2021-10-28 23:28:26,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 5.771428571428571) internal successors, (202), 35 states have internal predecessors, (202), 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) [2021-10-28 23:28:26,194 INFO L276 IsEmpty]: Start isEmpty. Operand 2043 states and 2371 transitions. [2021-10-28 23:28:26,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2021-10-28 23:28:26,196 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:28:26,197 INFO L513 BasicCegarLoop]: trace histogram [34, 33, 33, 24, 24, 24, 10, 10, 10, 1, 1] [2021-10-28 23:28:26,234 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2021-10-28 23:28:26,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:28:26,411 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:28:26,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:28:26,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1556597393, now seen corresponding path program 17 times [2021-10-28 23:28:26,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:28:26,412 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014872519] [2021-10-28 23:28:26,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:28:26,412 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:28:26,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:28:26,872 INFO L134 CoverageAnalysis]: Checked inductivity of 2853 backedges. 906 proven. 1704 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-10-28 23:28:26,872 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:28:26,872 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014872519] [2021-10-28 23:28:26,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014872519] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:28:26,873 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [872135946] [2021-10-28 23:28:26,873 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 23:28:26,873 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:28:26,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:28:26,875 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:28:26,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2021-10-28 23:28:28,843 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 26 check-sat command(s) [2021-10-28 23:28:28,844 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:28:28,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 26 conjunts are in the unsatisfiable core [2021-10-28 23:28:28,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:28:29,464 INFO L134 CoverageAnalysis]: Checked inductivity of 2853 backedges. 906 proven. 1704 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-10-28 23:28:29,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [872135946] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:28:29,465 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:28:29,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 26 [2021-10-28 23:28:29,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405906942] [2021-10-28 23:28:29,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-10-28 23:28:29,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:28:29,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-10-28 23:28:29,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2021-10-28 23:28:29,467 INFO L87 Difference]: Start difference. First operand 2043 states and 2371 transitions. Second operand has 27 states, 27 states have (on average 5.703703703703703) internal successors, (154), 26 states have internal predecessors, (154), 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) [2021-10-28 23:28:29,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:28:29,568 INFO L93 Difference]: Finished difference Result 3955 states and 4612 transitions. [2021-10-28 23:28:29,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-28 23:28:29,568 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 5.703703703703703) internal successors, (154), 26 states have internal predecessors, (154), 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) Word has length 204 [2021-10-28 23:28:29,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:28:29,570 INFO L225 Difference]: With dead ends: 3955 [2021-10-28 23:28:29,570 INFO L226 Difference]: Without dead ends: 2053 [2021-10-28 23:28:29,572 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2021-10-28 23:28:29,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2053 states. [2021-10-28 23:28:29,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2053 to 2049. [2021-10-28 23:28:29,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2049 states, 2047 states have (on average 1.1612115290669272) internal successors, (2377), 2048 states have internal predecessors, (2377), 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) [2021-10-28 23:28:29,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2049 states to 2049 states and 2377 transitions. [2021-10-28 23:28:29,609 INFO L78 Accepts]: Start accepts. Automaton has 2049 states and 2377 transitions. Word has length 204 [2021-10-28 23:28:29,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:28:29,609 INFO L470 AbstractCegarLoop]: Abstraction has 2049 states and 2377 transitions. [2021-10-28 23:28:29,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 5.703703703703703) internal successors, (154), 26 states have internal predecessors, (154), 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) [2021-10-28 23:28:29,609 INFO L276 IsEmpty]: Start isEmpty. Operand 2049 states and 2377 transitions. [2021-10-28 23:28:29,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-10-28 23:28:29,612 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:28:29,612 INFO L513 BasicCegarLoop]: trace histogram [35, 35, 34, 34, 34, 34, 1, 1] [2021-10-28 23:28:29,656 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2021-10-28 23:28:29,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:28:29,835 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:28:29,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:28:29,836 INFO L85 PathProgramCache]: Analyzing trace with hash 931349469, now seen corresponding path program 33 times [2021-10-28 23:28:29,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:28:29,836 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945821322] [2021-10-28 23:28:29,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:28:29,836 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:28:29,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:28:30,634 INFO L134 CoverageAnalysis]: Checked inductivity of 3468 backedges. 0 proven. 3468 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:28:30,634 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:28:30,634 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945821322] [2021-10-28 23:28:30,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945821322] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:28:30,634 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [113331946] [2021-10-28 23:28:30,634 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 23:28:30,634 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:28:30,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:28:30,635 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:28:30,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2021-10-28 23:28:32,710 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 35 check-sat command(s) [2021-10-28 23:28:32,710 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:28:32,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 36 conjunts are in the unsatisfiable core [2021-10-28 23:28:32,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:28:33,470 INFO L134 CoverageAnalysis]: Checked inductivity of 3468 backedges. 0 proven. 3468 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:28:33,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [113331946] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:28:33,471 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:28:33,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35] total 35 [2021-10-28 23:28:33,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544673073] [2021-10-28 23:28:33,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2021-10-28 23:28:33,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:28:33,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-10-28 23:28:33,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=666, Invalid=666, Unknown=0, NotChecked=0, Total=1332 [2021-10-28 23:28:33,475 INFO L87 Difference]: Start difference. First operand 2049 states and 2377 transitions. Second operand has 37 states, 36 states have (on average 5.777777777777778) internal successors, (208), 36 states have internal predecessors, (208), 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) [2021-10-28 23:28:33,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:28:33,912 INFO L93 Difference]: Finished difference Result 4045 states and 4710 transitions. [2021-10-28 23:28:33,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-10-28 23:28:33,912 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 5.777777777777778) internal successors, (208), 36 states have internal predecessors, (208), 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) Word has length 208 [2021-10-28 23:28:33,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:28:33,917 INFO L225 Difference]: With dead ends: 4045 [2021-10-28 23:28:33,917 INFO L226 Difference]: Without dead ends: 4044 [2021-10-28 23:28:33,918 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=666, Invalid=666, Unknown=0, NotChecked=0, Total=1332 [2021-10-28 23:28:33,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4044 states. [2021-10-28 23:28:33,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4044 to 2112. [2021-10-28 23:28:33,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2112 states, 2110 states have (on average 1.1616113744075829) internal successors, (2451), 2111 states have internal predecessors, (2451), 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) [2021-10-28 23:28:33,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2112 states to 2112 states and 2451 transitions. [2021-10-28 23:28:33,960 INFO L78 Accepts]: Start accepts. Automaton has 2112 states and 2451 transitions. Word has length 208 [2021-10-28 23:28:33,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:28:33,960 INFO L470 AbstractCegarLoop]: Abstraction has 2112 states and 2451 transitions. [2021-10-28 23:28:33,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 5.777777777777778) internal successors, (208), 36 states have internal predecessors, (208), 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) [2021-10-28 23:28:33,960 INFO L276 IsEmpty]: Start isEmpty. Operand 2112 states and 2451 transitions. [2021-10-28 23:28:33,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-10-28 23:28:33,962 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:28:33,962 INFO L513 BasicCegarLoop]: trace histogram [35, 34, 34, 25, 25, 25, 10, 10, 10, 1, 1] [2021-10-28 23:28:33,996 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Ended with exit code 0 [2021-10-28 23:28:34,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:28:34,163 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:28:34,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:28:34,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1289344970, now seen corresponding path program 18 times [2021-10-28 23:28:34,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:28:34,163 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109058387] [2021-10-28 23:28:34,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:28:34,164 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:28:34,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:28:34,680 INFO L134 CoverageAnalysis]: Checked inductivity of 3036 backedges. 943 proven. 1850 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-10-28 23:28:34,681 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:28:34,681 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109058387] [2021-10-28 23:28:34,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109058387] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:28:34,681 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2079517177] [2021-10-28 23:28:34,681 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-28 23:28:34,681 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:28:34,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:28:34,682 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:28:34,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2021-10-28 23:28:36,786 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 21 check-sat command(s) [2021-10-28 23:28:36,786 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:28:36,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 23:28:36,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:28:37,786 INFO L134 CoverageAnalysis]: Checked inductivity of 3036 backedges. 1149 proven. 323 refuted. 0 times theorem prover too weak. 1564 trivial. 0 not checked. [2021-10-28 23:28:37,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2079517177] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:28:37,787 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:28:37,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 13] total 40 [2021-10-28 23:28:37,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330209718] [2021-10-28 23:28:37,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2021-10-28 23:28:37,788 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:28:37,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-10-28 23:28:37,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=780, Invalid=780, Unknown=0, NotChecked=0, Total=1560 [2021-10-28 23:28:37,789 INFO L87 Difference]: Start difference. First operand 2112 states and 2451 transitions. Second operand has 40 states, 40 states have (on average 5.925) internal successors, (237), 40 states have internal predecessors, (237), 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) [2021-10-28 23:28:38,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:28:38,063 INFO L93 Difference]: Finished difference Result 4413 states and 5193 transitions. [2021-10-28 23:28:38,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-10-28 23:28:38,065 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 5.925) internal successors, (237), 40 states have internal predecessors, (237), 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) Word has length 210 [2021-10-28 23:28:38,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:28:38,067 INFO L225 Difference]: With dead ends: 4413 [2021-10-28 23:28:38,067 INFO L226 Difference]: Without dead ends: 2448 [2021-10-28 23:28:38,069 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=780, Invalid=780, Unknown=0, NotChecked=0, Total=1560 [2021-10-28 23:28:38,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2448 states. [2021-10-28 23:28:38,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2448 to 2424. [2021-10-28 23:28:38,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2424 states, 2422 states have (on average 1.1610239471511148) internal successors, (2812), 2423 states have internal predecessors, (2812), 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) [2021-10-28 23:28:38,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2424 states to 2424 states and 2812 transitions. [2021-10-28 23:28:38,114 INFO L78 Accepts]: Start accepts. Automaton has 2424 states and 2812 transitions. Word has length 210 [2021-10-28 23:28:38,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:28:38,114 INFO L470 AbstractCegarLoop]: Abstraction has 2424 states and 2812 transitions. [2021-10-28 23:28:38,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 5.925) internal successors, (237), 40 states have internal predecessors, (237), 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) [2021-10-28 23:28:38,114 INFO L276 IsEmpty]: Start isEmpty. Operand 2424 states and 2812 transitions. [2021-10-28 23:28:38,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2021-10-28 23:28:38,116 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:28:38,116 INFO L513 BasicCegarLoop]: trace histogram [36, 36, 35, 35, 35, 35, 1, 1] [2021-10-28 23:28:38,148 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2021-10-28 23:28:38,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:28:38,316 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:28:38,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:28:38,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1997927274, now seen corresponding path program 34 times [2021-10-28 23:28:38,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:28:38,317 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500252677] [2021-10-28 23:28:38,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:28:38,318 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:28:38,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:28:39,168 INFO L134 CoverageAnalysis]: Checked inductivity of 3675 backedges. 0 proven. 3675 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:28:39,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:28:39,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500252677] [2021-10-28 23:28:39,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500252677] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:28:39,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1148516268] [2021-10-28 23:28:39,169 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 23:28:39,169 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:28:39,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:28:39,171 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:28:39,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2021-10-28 23:28:41,635 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 23:28:41,636 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:28:41,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-28 23:28:41,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:28:42,350 INFO L134 CoverageAnalysis]: Checked inductivity of 3675 backedges. 0 proven. 3675 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:28:42,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1148516268] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:28:42,351 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:28:42,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 36] total 36 [2021-10-28 23:28:42,352 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806381204] [2021-10-28 23:28:42,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2021-10-28 23:28:42,352 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:28:42,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-10-28 23:28:42,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=703, Invalid=703, Unknown=0, NotChecked=0, Total=1406 [2021-10-28 23:28:42,353 INFO L87 Difference]: Start difference. First operand 2424 states and 2812 transitions. Second operand has 38 states, 37 states have (on average 5.783783783783784) internal successors, (214), 37 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) [2021-10-28 23:28:42,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:28:42,675 INFO L93 Difference]: Finished difference Result 4791 states and 5578 transitions. [2021-10-28 23:28:42,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-10-28 23:28:42,682 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 5.783783783783784) internal successors, (214), 37 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) Word has length 214 [2021-10-28 23:28:42,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:28:42,688 INFO L225 Difference]: With dead ends: 4791 [2021-10-28 23:28:42,689 INFO L226 Difference]: Without dead ends: 4790 [2021-10-28 23:28:42,691 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=703, Invalid=703, Unknown=0, NotChecked=0, Total=1406 [2021-10-28 23:28:42,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4790 states. [2021-10-28 23:28:42,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4790 to 2499. [2021-10-28 23:28:42,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2499 states, 2497 states have (on average 1.1613936724068883) internal successors, (2900), 2498 states have internal predecessors, (2900), 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) [2021-10-28 23:28:42,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2499 states to 2499 states and 2900 transitions. [2021-10-28 23:28:42,781 INFO L78 Accepts]: Start accepts. Automaton has 2499 states and 2900 transitions. Word has length 214 [2021-10-28 23:28:42,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:28:42,781 INFO L470 AbstractCegarLoop]: Abstraction has 2499 states and 2900 transitions. [2021-10-28 23:28:42,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 5.783783783783784) internal successors, (214), 37 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) [2021-10-28 23:28:42,781 INFO L276 IsEmpty]: Start isEmpty. Operand 2499 states and 2900 transitions. [2021-10-28 23:28:42,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2021-10-28 23:28:42,783 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:28:42,783 INFO L513 BasicCegarLoop]: trace histogram [37, 37, 36, 36, 36, 36, 1, 1] [2021-10-28 23:28:42,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Forceful destruction successful, exit code 0 [2021-10-28 23:28:42,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:28:42,984 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:28:42,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:28:42,984 INFO L85 PathProgramCache]: Analyzing trace with hash -830757233, now seen corresponding path program 35 times [2021-10-28 23:28:42,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:28:42,985 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74217953] [2021-10-28 23:28:42,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:28:42,985 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:28:43,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:28:43,932 INFO L134 CoverageAnalysis]: Checked inductivity of 3888 backedges. 0 proven. 3888 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:28:43,932 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:28:43,932 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74217953] [2021-10-28 23:28:43,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74217953] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:28:43,933 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [238200010] [2021-10-28 23:28:43,933 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 23:28:43,933 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:28:43,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:28:43,934 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:28:43,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2021-10-28 23:28:46,356 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 37 check-sat command(s) [2021-10-28 23:28:46,356 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:28:46,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 38 conjunts are in the unsatisfiable core [2021-10-28 23:28:46,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:28:47,042 INFO L134 CoverageAnalysis]: Checked inductivity of 3888 backedges. 0 proven. 3888 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:28:47,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [238200010] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:28:47,043 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:28:47,043 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37] total 37 [2021-10-28 23:28:47,043 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433858106] [2021-10-28 23:28:47,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2021-10-28 23:28:47,044 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:28:47,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-10-28 23:28:47,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=741, Invalid=741, Unknown=0, NotChecked=0, Total=1482 [2021-10-28 23:28:47,045 INFO L87 Difference]: Start difference. First operand 2499 states and 2900 transitions. Second operand has 39 states, 38 states have (on average 5.7894736842105265) internal successors, (220), 38 states have internal predecessors, (220), 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) [2021-10-28 23:28:47,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:28:47,401 INFO L93 Difference]: Finished difference Result 4943 states and 5756 transitions. [2021-10-28 23:28:47,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-10-28 23:28:47,402 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 38 states have (on average 5.7894736842105265) internal successors, (220), 38 states have internal predecessors, (220), 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) Word has length 220 [2021-10-28 23:28:47,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:28:47,407 INFO L225 Difference]: With dead ends: 4943 [2021-10-28 23:28:47,407 INFO L226 Difference]: Without dead ends: 4942 [2021-10-28 23:28:47,408 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=741, Invalid=741, Unknown=0, NotChecked=0, Total=1482 [2021-10-28 23:28:47,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4942 states. [2021-10-28 23:28:47,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4942 to 2574. [2021-10-28 23:28:47,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2574 states, 2572 states have (on average 1.1617418351477449) internal successors, (2988), 2573 states have internal predecessors, (2988), 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) [2021-10-28 23:28:47,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2574 states to 2574 states and 2988 transitions. [2021-10-28 23:28:47,521 INFO L78 Accepts]: Start accepts. Automaton has 2574 states and 2988 transitions. Word has length 220 [2021-10-28 23:28:47,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:28:47,522 INFO L470 AbstractCegarLoop]: Abstraction has 2574 states and 2988 transitions. [2021-10-28 23:28:47,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 38 states have (on average 5.7894736842105265) internal successors, (220), 38 states have internal predecessors, (220), 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) [2021-10-28 23:28:47,522 INFO L276 IsEmpty]: Start isEmpty. Operand 2574 states and 2988 transitions. [2021-10-28 23:28:47,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2021-10-28 23:28:47,524 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:28:47,524 INFO L513 BasicCegarLoop]: trace histogram [38, 38, 37, 37, 37, 37, 1, 1] [2021-10-28 23:28:47,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Forceful destruction successful, exit code 0 [2021-10-28 23:28:47,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2021-10-28 23:28:47,725 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:28:47,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:28:47,725 INFO L85 PathProgramCache]: Analyzing trace with hash -257547832, now seen corresponding path program 36 times [2021-10-28 23:28:47,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:28:47,725 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142588367] [2021-10-28 23:28:47,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:28:47,726 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:28:47,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:28:48,638 INFO L134 CoverageAnalysis]: Checked inductivity of 4107 backedges. 0 proven. 4107 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:28:48,638 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:28:48,638 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142588367] [2021-10-28 23:28:48,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142588367] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:28:48,639 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [862957013] [2021-10-28 23:28:48,639 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-28 23:28:48,639 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:28:48,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:28:48,643 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:28:48,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2021-10-28 23:28:51,381 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 38 check-sat command(s) [2021-10-28 23:28:51,381 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:28:51,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-28 23:28:51,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:28:52,100 INFO L134 CoverageAnalysis]: Checked inductivity of 4107 backedges. 0 proven. 4107 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:28:52,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [862957013] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:28:52,101 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:28:52,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38] total 38 [2021-10-28 23:28:52,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641195266] [2021-10-28 23:28:52,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2021-10-28 23:28:52,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:28:52,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-10-28 23:28:52,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=780, Invalid=780, Unknown=0, NotChecked=0, Total=1560 [2021-10-28 23:28:52,104 INFO L87 Difference]: Start difference. First operand 2574 states and 2988 transitions. Second operand has 40 states, 39 states have (on average 5.794871794871795) internal successors, (226), 39 states have internal predecessors, (226), 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) [2021-10-28 23:28:52,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:28:52,520 INFO L93 Difference]: Finished difference Result 5095 states and 5934 transitions. [2021-10-28 23:28:52,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-10-28 23:28:52,520 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 5.794871794871795) internal successors, (226), 39 states have internal predecessors, (226), 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) Word has length 226 [2021-10-28 23:28:52,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:28:52,525 INFO L225 Difference]: With dead ends: 5095 [2021-10-28 23:28:52,525 INFO L226 Difference]: Without dead ends: 5094 [2021-10-28 23:28:52,526 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=780, Invalid=780, Unknown=0, NotChecked=0, Total=1560 [2021-10-28 23:28:52,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5094 states. [2021-10-28 23:28:52,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5094 to 2649. [2021-10-28 23:28:52,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2649 states, 2647 states have (on average 1.162070268228183) internal successors, (3076), 2648 states have internal predecessors, (3076), 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) [2021-10-28 23:28:52,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2649 states to 2649 states and 3076 transitions. [2021-10-28 23:28:52,579 INFO L78 Accepts]: Start accepts. Automaton has 2649 states and 3076 transitions. Word has length 226 [2021-10-28 23:28:52,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:28:52,579 INFO L470 AbstractCegarLoop]: Abstraction has 2649 states and 3076 transitions. [2021-10-28 23:28:52,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 5.794871794871795) internal successors, (226), 39 states have internal predecessors, (226), 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) [2021-10-28 23:28:52,580 INFO L276 IsEmpty]: Start isEmpty. Operand 2649 states and 3076 transitions. [2021-10-28 23:28:52,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2021-10-28 23:28:52,583 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:28:52,583 INFO L513 BasicCegarLoop]: trace histogram [39, 39, 38, 38, 38, 38, 1, 1] [2021-10-28 23:28:52,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Forceful destruction successful, exit code 0 [2021-10-28 23:28:52,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2021-10-28 23:28:52,788 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:28:52,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:28:52,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1324642751, now seen corresponding path program 37 times [2021-10-28 23:28:52,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:28:52,789 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715010937] [2021-10-28 23:28:52,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:28:52,789 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:28:52,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:28:53,614 INFO L134 CoverageAnalysis]: Checked inductivity of 4332 backedges. 0 proven. 4332 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:28:53,614 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:28:53,614 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715010937] [2021-10-28 23:28:53,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715010937] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:28:53,615 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [464677995] [2021-10-28 23:28:53,615 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-28 23:28:53,616 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:28:53,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:28:53,616 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:28:53,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2021-10-28 23:28:56,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:28:56,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 40 conjunts are in the unsatisfiable core [2021-10-28 23:28:56,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:28:56,957 INFO L134 CoverageAnalysis]: Checked inductivity of 4332 backedges. 0 proven. 4332 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:28:56,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [464677995] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:28:56,957 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:28:56,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 39] total 39 [2021-10-28 23:28:56,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281163721] [2021-10-28 23:28:56,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-10-28 23:28:56,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:28:56,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-10-28 23:28:56,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=820, Invalid=820, Unknown=0, NotChecked=0, Total=1640 [2021-10-28 23:28:56,960 INFO L87 Difference]: Start difference. First operand 2649 states and 3076 transitions. Second operand has 41 states, 40 states have (on average 5.8) internal successors, (232), 40 states have internal predecessors, (232), 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) [2021-10-28 23:28:57,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:28:57,417 INFO L93 Difference]: Finished difference Result 5247 states and 6112 transitions. [2021-10-28 23:28:57,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-10-28 23:28:57,417 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 5.8) internal successors, (232), 40 states have internal predecessors, (232), 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) Word has length 232 [2021-10-28 23:28:57,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:28:57,422 INFO L225 Difference]: With dead ends: 5247 [2021-10-28 23:28:57,422 INFO L226 Difference]: Without dead ends: 5246 [2021-10-28 23:28:57,424 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=820, Invalid=820, Unknown=0, NotChecked=0, Total=1640 [2021-10-28 23:28:57,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5246 states. [2021-10-28 23:28:57,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5246 to 2724. [2021-10-28 23:28:57,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2724 states, 2722 states have (on average 1.162380602498163) internal successors, (3164), 2723 states have internal predecessors, (3164), 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) [2021-10-28 23:28:57,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2724 states to 2724 states and 3164 transitions. [2021-10-28 23:28:57,486 INFO L78 Accepts]: Start accepts. Automaton has 2724 states and 3164 transitions. Word has length 232 [2021-10-28 23:28:57,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:28:57,487 INFO L470 AbstractCegarLoop]: Abstraction has 2724 states and 3164 transitions. [2021-10-28 23:28:57,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 5.8) internal successors, (232), 40 states have internal predecessors, (232), 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) [2021-10-28 23:28:57,487 INFO L276 IsEmpty]: Start isEmpty. Operand 2724 states and 3164 transitions. [2021-10-28 23:28:57,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-10-28 23:28:57,489 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:28:57,489 INFO L513 BasicCegarLoop]: trace histogram [39, 38, 38, 27, 27, 27, 12, 12, 12, 1, 1] [2021-10-28 23:28:57,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Forceful destruction successful, exit code 0 [2021-10-28 23:28:57,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable60 [2021-10-28 23:28:57,690 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:28:57,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:28:57,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1381135010, now seen corresponding path program 19 times [2021-10-28 23:28:57,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:28:57,691 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663431704] [2021-10-28 23:28:57,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:28:57,691 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:28:57,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:28:58,151 INFO L134 CoverageAnalysis]: Checked inductivity of 3760 backedges. 1237 proven. 2160 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2021-10-28 23:28:58,151 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:28:58,151 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663431704] [2021-10-28 23:28:58,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663431704] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:28:58,152 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [579490965] [2021-10-28 23:28:58,152 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-28 23:28:58,152 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:28:58,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:28:58,154 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:28:58,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2021-10-28 23:29:00,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:29:00,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 29 conjunts are in the unsatisfiable core [2021-10-28 23:29:00,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:29:01,410 INFO L134 CoverageAnalysis]: Checked inductivity of 3760 backedges. 1237 proven. 2160 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2021-10-28 23:29:01,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [579490965] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:29:01,410 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:29:01,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29] total 29 [2021-10-28 23:29:01,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894044902] [2021-10-28 23:29:01,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-10-28 23:29:01,411 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:29:01,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-10-28 23:29:01,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=435, Invalid=435, Unknown=0, NotChecked=0, Total=870 [2021-10-28 23:29:01,412 INFO L87 Difference]: Start difference. First operand 2724 states and 3164 transitions. Second operand has 30 states, 30 states have (on average 5.733333333333333) internal successors, (172), 29 states have internal predecessors, (172), 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) [2021-10-28 23:29:01,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:29:01,544 INFO L93 Difference]: Finished difference Result 5299 states and 6180 transitions. [2021-10-28 23:29:01,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-10-28 23:29:01,544 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.733333333333333) internal successors, (172), 29 states have internal predecessors, (172), 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) Word has length 234 [2021-10-28 23:29:01,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:29:01,547 INFO L225 Difference]: With dead ends: 5299 [2021-10-28 23:29:01,547 INFO L226 Difference]: Without dead ends: 2734 [2021-10-28 23:29:01,550 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=435, Invalid=435, Unknown=0, NotChecked=0, Total=870 [2021-10-28 23:29:01,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2734 states. [2021-10-28 23:29:01,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2734 to 2730. [2021-10-28 23:29:01,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2730 states, 2728 states have (on average 1.1620234604105573) internal successors, (3170), 2729 states have internal predecessors, (3170), 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) [2021-10-28 23:29:01,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2730 states to 2730 states and 3170 transitions. [2021-10-28 23:29:01,627 INFO L78 Accepts]: Start accepts. Automaton has 2730 states and 3170 transitions. Word has length 234 [2021-10-28 23:29:01,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:29:01,628 INFO L470 AbstractCegarLoop]: Abstraction has 2730 states and 3170 transitions. [2021-10-28 23:29:01,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.733333333333333) internal successors, (172), 29 states have internal predecessors, (172), 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) [2021-10-28 23:29:01,628 INFO L276 IsEmpty]: Start isEmpty. Operand 2730 states and 3170 transitions. [2021-10-28 23:29:01,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2021-10-28 23:29:01,631 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:29:01,632 INFO L513 BasicCegarLoop]: trace histogram [40, 40, 39, 39, 39, 39, 1, 1] [2021-10-28 23:29:01,664 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Ended with exit code 0 [2021-10-28 23:29:01,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:29:01,832 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:29:01,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:29:01,833 INFO L85 PathProgramCache]: Analyzing trace with hash -209585158, now seen corresponding path program 38 times [2021-10-28 23:29:01,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:29:01,833 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317639091] [2021-10-28 23:29:01,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:29:01,834 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:29:01,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:29:02,711 INFO L134 CoverageAnalysis]: Checked inductivity of 4563 backedges. 0 proven. 4563 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:29:02,711 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:29:02,711 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317639091] [2021-10-28 23:29:02,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317639091] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:29:02,714 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1685768697] [2021-10-28 23:29:02,714 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:29:02,715 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:29:02,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:02,715 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:29:02,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2021-10-28 23:29:05,301 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 23:29:05,302 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:29:05,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 41 conjunts are in the unsatisfiable core [2021-10-28 23:29:05,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:29:06,092 INFO L134 CoverageAnalysis]: Checked inductivity of 4563 backedges. 0 proven. 4563 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:29:06,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1685768697] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:29:06,092 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:29:06,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40] total 40 [2021-10-28 23:29:06,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430499360] [2021-10-28 23:29:06,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2021-10-28 23:29:06,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:29:06,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-10-28 23:29:06,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=861, Invalid=861, Unknown=0, NotChecked=0, Total=1722 [2021-10-28 23:29:06,094 INFO L87 Difference]: Start difference. First operand 2730 states and 3170 transitions. Second operand has 42 states, 41 states have (on average 5.804878048780488) internal successors, (238), 41 states have internal predecessors, (238), 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) [2021-10-28 23:29:06,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:29:06,450 INFO L93 Difference]: Finished difference Result 5405 states and 6296 transitions. [2021-10-28 23:29:06,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-10-28 23:29:06,451 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 41 states have (on average 5.804878048780488) internal successors, (238), 41 states have internal predecessors, (238), 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) Word has length 238 [2021-10-28 23:29:06,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:29:06,456 INFO L225 Difference]: With dead ends: 5405 [2021-10-28 23:29:06,457 INFO L226 Difference]: Without dead ends: 5404 [2021-10-28 23:29:06,458 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=861, Invalid=861, Unknown=0, NotChecked=0, Total=1722 [2021-10-28 23:29:06,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5404 states. [2021-10-28 23:29:06,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5404 to 2805. [2021-10-28 23:29:06,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2805 states, 2803 states have (on average 1.1623260792008563) internal successors, (3258), 2804 states have internal predecessors, (3258), 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) [2021-10-28 23:29:06,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2805 states to 2805 states and 3258 transitions. [2021-10-28 23:29:06,518 INFO L78 Accepts]: Start accepts. Automaton has 2805 states and 3258 transitions. Word has length 238 [2021-10-28 23:29:06,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:29:06,519 INFO L470 AbstractCegarLoop]: Abstraction has 2805 states and 3258 transitions. [2021-10-28 23:29:06,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 41 states have (on average 5.804878048780488) internal successors, (238), 41 states have internal predecessors, (238), 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) [2021-10-28 23:29:06,519 INFO L276 IsEmpty]: Start isEmpty. Operand 2805 states and 3258 transitions. [2021-10-28 23:29:06,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-10-28 23:29:06,521 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:29:06,521 INFO L513 BasicCegarLoop]: trace histogram [40, 39, 39, 28, 28, 28, 12, 12, 12, 1, 1] [2021-10-28 23:29:06,556 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Ended with exit code 0 [2021-10-28 23:29:06,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:29:06,723 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:29:06,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:29:06,724 INFO L85 PathProgramCache]: Analyzing trace with hash -790342117, now seen corresponding path program 20 times [2021-10-28 23:29:06,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:29:06,724 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812880988] [2021-10-28 23:29:06,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:29:06,724 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:29:06,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:29:07,208 INFO L134 CoverageAnalysis]: Checked inductivity of 3969 backedges. 1282 proven. 2324 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2021-10-28 23:29:07,208 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:29:07,208 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812880988] [2021-10-28 23:29:07,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812880988] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:29:07,208 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [747912996] [2021-10-28 23:29:07,208 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:29:07,208 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:29:07,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:07,209 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:29:07,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2021-10-28 23:29:09,897 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 23:29:09,897 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:29:09,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 30 conjunts are in the unsatisfiable core [2021-10-28 23:29:09,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:29:10,543 INFO L134 CoverageAnalysis]: Checked inductivity of 3969 backedges. 1282 proven. 2324 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2021-10-28 23:29:10,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [747912996] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:29:10,543 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:29:10,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30] total 30 [2021-10-28 23:29:10,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988027393] [2021-10-28 23:29:10,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-10-28 23:29:10,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:29:10,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-10-28 23:29:10,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=465, Invalid=465, Unknown=0, NotChecked=0, Total=930 [2021-10-28 23:29:10,545 INFO L87 Difference]: Start difference. First operand 2805 states and 3258 transitions. Second operand has 31 states, 31 states have (on average 5.741935483870968) internal successors, (178), 30 states have internal predecessors, (178), 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) [2021-10-28 23:29:10,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:29:10,665 INFO L93 Difference]: Finished difference Result 5455 states and 6362 transitions. [2021-10-28 23:29:10,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-10-28 23:29:10,665 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 5.741935483870968) internal successors, (178), 30 states have internal predecessors, (178), 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) Word has length 240 [2021-10-28 23:29:10,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:29:10,668 INFO L225 Difference]: With dead ends: 5455 [2021-10-28 23:29:10,668 INFO L226 Difference]: Without dead ends: 2815 [2021-10-28 23:29:10,671 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=465, Invalid=465, Unknown=0, NotChecked=0, Total=930 [2021-10-28 23:29:10,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2815 states. [2021-10-28 23:29:10,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2815 to 2811. [2021-10-28 23:29:10,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2811 states, 2809 states have (on average 1.1619793520825916) internal successors, (3264), 2810 states have internal predecessors, (3264), 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) [2021-10-28 23:29:10,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2811 states to 2811 states and 3264 transitions. [2021-10-28 23:29:10,837 INFO L78 Accepts]: Start accepts. Automaton has 2811 states and 3264 transitions. Word has length 240 [2021-10-28 23:29:10,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:29:10,837 INFO L470 AbstractCegarLoop]: Abstraction has 2811 states and 3264 transitions. [2021-10-28 23:29:10,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 5.741935483870968) internal successors, (178), 30 states have internal predecessors, (178), 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) [2021-10-28 23:29:10,838 INFO L276 IsEmpty]: Start isEmpty. Operand 2811 states and 3264 transitions. [2021-10-28 23:29:10,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2021-10-28 23:29:10,841 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:29:10,841 INFO L513 BasicCegarLoop]: trace histogram [41, 41, 40, 40, 40, 40, 1, 1] [2021-10-28 23:29:10,891 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Ended with exit code 0 [2021-10-28 23:29:11,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:29:11,055 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:29:11,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:29:11,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1192458995, now seen corresponding path program 39 times [2021-10-28 23:29:11,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:29:11,056 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659331450] [2021-10-28 23:29:11,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:29:11,056 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:29:11,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:29:12,032 INFO L134 CoverageAnalysis]: Checked inductivity of 4800 backedges. 0 proven. 4800 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:29:12,032 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:29:12,032 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659331450] [2021-10-28 23:29:12,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659331450] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:29:12,032 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [735003291] [2021-10-28 23:29:12,032 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 23:29:12,032 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:29:12,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:12,033 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:29:12,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2021-10-28 23:29:14,841 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 41 check-sat command(s) [2021-10-28 23:29:14,841 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:29:14,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 42 conjunts are in the unsatisfiable core [2021-10-28 23:29:14,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:29:15,649 INFO L134 CoverageAnalysis]: Checked inductivity of 4800 backedges. 0 proven. 4800 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:29:15,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [735003291] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:29:15,650 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:29:15,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 41] total 41 [2021-10-28 23:29:15,651 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325784628] [2021-10-28 23:29:15,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2021-10-28 23:29:15,652 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:29:15,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-10-28 23:29:15,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=903, Invalid=903, Unknown=0, NotChecked=0, Total=1806 [2021-10-28 23:29:15,654 INFO L87 Difference]: Start difference. First operand 2811 states and 3264 transitions. Second operand has 43 states, 42 states have (on average 5.809523809523809) internal successors, (244), 42 states have internal predecessors, (244), 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) [2021-10-28 23:29:16,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:29:16,141 INFO L93 Difference]: Finished difference Result 5563 states and 6480 transitions. [2021-10-28 23:29:16,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-10-28 23:29:16,141 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 42 states have (on average 5.809523809523809) internal successors, (244), 42 states have internal predecessors, (244), 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) Word has length 244 [2021-10-28 23:29:16,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:29:16,146 INFO L225 Difference]: With dead ends: 5563 [2021-10-28 23:29:16,146 INFO L226 Difference]: Without dead ends: 5562 [2021-10-28 23:29:16,147 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=903, Invalid=903, Unknown=0, NotChecked=0, Total=1806 [2021-10-28 23:29:16,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5562 states. [2021-10-28 23:29:16,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5562 to 2886. [2021-10-28 23:29:16,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2886 states, 2884 states have (on average 1.1622746185852981) internal successors, (3352), 2885 states have internal predecessors, (3352), 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) [2021-10-28 23:29:16,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2886 states to 2886 states and 3352 transitions. [2021-10-28 23:29:16,202 INFO L78 Accepts]: Start accepts. Automaton has 2886 states and 3352 transitions. Word has length 244 [2021-10-28 23:29:16,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:29:16,203 INFO L470 AbstractCegarLoop]: Abstraction has 2886 states and 3352 transitions. [2021-10-28 23:29:16,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 42 states have (on average 5.809523809523809) internal successors, (244), 42 states have internal predecessors, (244), 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) [2021-10-28 23:29:16,203 INFO L276 IsEmpty]: Start isEmpty. Operand 2886 states and 3352 transitions. [2021-10-28 23:29:16,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2021-10-28 23:29:16,205 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:29:16,205 INFO L513 BasicCegarLoop]: trace histogram [41, 40, 40, 29, 29, 29, 12, 12, 12, 1, 1] [2021-10-28 23:29:16,241 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Ended with exit code 0 [2021-10-28 23:29:16,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:29:16,407 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:29:16,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:29:16,407 INFO L85 PathProgramCache]: Analyzing trace with hash -2045642028, now seen corresponding path program 21 times [2021-10-28 23:29:16,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:29:16,407 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220157459] [2021-10-28 23:29:16,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:29:16,408 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:29:16,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:29:17,030 INFO L134 CoverageAnalysis]: Checked inductivity of 4184 backedges. 1327 proven. 2494 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2021-10-28 23:29:17,031 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:29:17,031 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220157459] [2021-10-28 23:29:17,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220157459] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:29:17,031 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1672977129] [2021-10-28 23:29:17,031 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 23:29:17,032 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:29:17,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:17,033 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:29:17,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2021-10-28 23:29:19,952 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2021-10-28 23:29:19,952 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:29:19,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-28 23:29:19,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:29:20,984 INFO L134 CoverageAnalysis]: Checked inductivity of 4184 backedges. 1565 proven. 459 refuted. 0 times theorem prover too weak. 2160 trivial. 0 not checked. [2021-10-28 23:29:20,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1672977129] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:29:20,985 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:29:20,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 15] total 46 [2021-10-28 23:29:20,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902322023] [2021-10-28 23:29:20,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2021-10-28 23:29:20,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:29:20,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-10-28 23:29:20,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1035, Invalid=1035, Unknown=0, NotChecked=0, Total=2070 [2021-10-28 23:29:20,987 INFO L87 Difference]: Start difference. First operand 2886 states and 3352 transitions. Second operand has 46 states, 46 states have (on average 5.934782608695652) internal successors, (273), 46 states have internal predecessors, (273), 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) [2021-10-28 23:29:21,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:29:21,305 INFO L93 Difference]: Finished difference Result 5989 states and 7039 transitions. [2021-10-28 23:29:21,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-10-28 23:29:21,305 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 5.934782608695652) internal successors, (273), 46 states have internal predecessors, (273), 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) Word has length 246 [2021-10-28 23:29:21,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:29:21,308 INFO L225 Difference]: With dead ends: 5989 [2021-10-28 23:29:21,308 INFO L226 Difference]: Without dead ends: 3274 [2021-10-28 23:29:21,311 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1035, Invalid=1035, Unknown=0, NotChecked=0, Total=2070 [2021-10-28 23:29:21,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3274 states. [2021-10-28 23:29:21,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3274 to 3246. [2021-10-28 23:29:21,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3246 states, 3244 states have (on average 1.1618372379778052) internal successors, (3769), 3245 states have internal predecessors, (3769), 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) [2021-10-28 23:29:21,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3246 states to 3246 states and 3769 transitions. [2021-10-28 23:29:21,373 INFO L78 Accepts]: Start accepts. Automaton has 3246 states and 3769 transitions. Word has length 246 [2021-10-28 23:29:21,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:29:21,373 INFO L470 AbstractCegarLoop]: Abstraction has 3246 states and 3769 transitions. [2021-10-28 23:29:21,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 5.934782608695652) internal successors, (273), 46 states have internal predecessors, (273), 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) [2021-10-28 23:29:21,373 INFO L276 IsEmpty]: Start isEmpty. Operand 3246 states and 3769 transitions. [2021-10-28 23:29:21,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2021-10-28 23:29:21,375 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:29:21,375 INFO L513 BasicCegarLoop]: trace histogram [42, 42, 41, 41, 41, 41, 1, 1] [2021-10-28 23:29:21,411 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Ended with exit code 0 [2021-10-28 23:29:21,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:29:21,576 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:29:21,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:29:21,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1359078612, now seen corresponding path program 40 times [2021-10-28 23:29:21,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:29:21,577 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636269061] [2021-10-28 23:29:21,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:29:21,577 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:29:21,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:29:22,519 INFO L134 CoverageAnalysis]: Checked inductivity of 5043 backedges. 0 proven. 5043 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:29:22,519 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:29:22,519 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636269061] [2021-10-28 23:29:22,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636269061] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:29:22,519 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1659384680] [2021-10-28 23:29:22,520 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 23:29:22,520 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:29:22,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:22,521 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:29:22,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2021-10-28 23:29:25,511 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 23:29:25,511 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:29:25,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 43 conjunts are in the unsatisfiable core [2021-10-28 23:29:25,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:29:26,332 INFO L134 CoverageAnalysis]: Checked inductivity of 5043 backedges. 0 proven. 5043 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:29:26,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1659384680] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:29:26,333 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:29:26,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 42] total 42 [2021-10-28 23:29:26,337 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604327412] [2021-10-28 23:29:26,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2021-10-28 23:29:26,338 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:29:26,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2021-10-28 23:29:26,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=946, Invalid=946, Unknown=0, NotChecked=0, Total=1892 [2021-10-28 23:29:26,339 INFO L87 Difference]: Start difference. First operand 3246 states and 3769 transitions. Second operand has 44 states, 43 states have (on average 5.813953488372093) internal successors, (250), 43 states have internal predecessors, (250), 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) [2021-10-28 23:29:26,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:29:26,775 INFO L93 Difference]: Finished difference Result 6429 states and 7488 transitions. [2021-10-28 23:29:26,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-10-28 23:29:26,775 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 43 states have (on average 5.813953488372093) internal successors, (250), 43 states have internal predecessors, (250), 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) Word has length 250 [2021-10-28 23:29:26,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:29:26,782 INFO L225 Difference]: With dead ends: 6429 [2021-10-28 23:29:26,782 INFO L226 Difference]: Without dead ends: 6428 [2021-10-28 23:29:26,784 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=946, Invalid=946, Unknown=0, NotChecked=0, Total=1892 [2021-10-28 23:29:26,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6428 states. [2021-10-28 23:29:26,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6428 to 3333. [2021-10-28 23:29:26,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3333 states, 3331 states have (on average 1.162113479435605) internal successors, (3871), 3332 states have internal predecessors, (3871), 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) [2021-10-28 23:29:26,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3333 states to 3333 states and 3871 transitions. [2021-10-28 23:29:26,881 INFO L78 Accepts]: Start accepts. Automaton has 3333 states and 3871 transitions. Word has length 250 [2021-10-28 23:29:26,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:29:26,882 INFO L470 AbstractCegarLoop]: Abstraction has 3333 states and 3871 transitions. [2021-10-28 23:29:26,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 43 states have (on average 5.813953488372093) internal successors, (250), 43 states have internal predecessors, (250), 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) [2021-10-28 23:29:26,882 INFO L276 IsEmpty]: Start isEmpty. Operand 3333 states and 3871 transitions. [2021-10-28 23:29:26,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2021-10-28 23:29:26,884 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:29:26,884 INFO L513 BasicCegarLoop]: trace histogram [43, 43, 42, 42, 42, 42, 1, 1] [2021-10-28 23:29:26,921 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Ended with exit code 0 [2021-10-28 23:29:27,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2021-10-28 23:29:27,086 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:29:27,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:29:27,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1414271835, now seen corresponding path program 41 times [2021-10-28 23:29:27,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:29:27,087 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513295821] [2021-10-28 23:29:27,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:29:27,087 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:29:27,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:29:28,037 INFO L134 CoverageAnalysis]: Checked inductivity of 5292 backedges. 0 proven. 5292 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:29:28,037 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:29:28,037 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513295821] [2021-10-28 23:29:28,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513295821] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:29:28,038 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1458818138] [2021-10-28 23:29:28,038 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 23:29:28,038 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:29:28,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:28,039 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:29:28,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2021-10-28 23:29:31,158 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 43 check-sat command(s) [2021-10-28 23:29:31,158 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:29:31,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 44 conjunts are in the unsatisfiable core [2021-10-28 23:29:31,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:29:31,972 INFO L134 CoverageAnalysis]: Checked inductivity of 5292 backedges. 0 proven. 5292 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:29:31,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1458818138] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:29:31,973 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:29:31,973 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 43] total 43 [2021-10-28 23:29:31,973 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064797006] [2021-10-28 23:29:31,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2021-10-28 23:29:31,974 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:29:31,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-10-28 23:29:31,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=990, Invalid=990, Unknown=0, NotChecked=0, Total=1980 [2021-10-28 23:29:31,974 INFO L87 Difference]: Start difference. First operand 3333 states and 3871 transitions. Second operand has 45 states, 44 states have (on average 5.818181818181818) internal successors, (256), 44 states have internal predecessors, (256), 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) [2021-10-28 23:29:32,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:29:32,375 INFO L93 Difference]: Finished difference Result 6605 states and 7694 transitions. [2021-10-28 23:29:32,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-10-28 23:29:32,376 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 44 states have (on average 5.818181818181818) internal successors, (256), 44 states have internal predecessors, (256), 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) Word has length 256 [2021-10-28 23:29:32,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:29:32,382 INFO L225 Difference]: With dead ends: 6605 [2021-10-28 23:29:32,383 INFO L226 Difference]: Without dead ends: 6604 [2021-10-28 23:29:32,384 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=990, Invalid=990, Unknown=0, NotChecked=0, Total=1980 [2021-10-28 23:29:32,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6604 states. [2021-10-28 23:29:32,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6604 to 3420. [2021-10-28 23:29:32,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3420 states, 3418 states have (on average 1.1623756582796958) internal successors, (3973), 3419 states have internal predecessors, (3973), 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) [2021-10-28 23:29:32,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3420 states to 3420 states and 3973 transitions. [2021-10-28 23:29:32,537 INFO L78 Accepts]: Start accepts. Automaton has 3420 states and 3973 transitions. Word has length 256 [2021-10-28 23:29:32,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:29:32,538 INFO L470 AbstractCegarLoop]: Abstraction has 3420 states and 3973 transitions. [2021-10-28 23:29:32,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 44 states have (on average 5.818181818181818) internal successors, (256), 44 states have internal predecessors, (256), 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) [2021-10-28 23:29:32,538 INFO L276 IsEmpty]: Start isEmpty. Operand 3420 states and 3973 transitions. [2021-10-28 23:29:32,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2021-10-28 23:29:32,542 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:29:32,542 INFO L513 BasicCegarLoop]: trace histogram [44, 44, 43, 43, 43, 43, 1, 1] [2021-10-28 23:29:32,583 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Forceful destruction successful, exit code 0 [2021-10-28 23:29:32,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable67 [2021-10-28 23:29:32,755 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:29:32,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:29:32,756 INFO L85 PathProgramCache]: Analyzing trace with hash -2082799778, now seen corresponding path program 42 times [2021-10-28 23:29:32,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:29:32,756 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585864678] [2021-10-28 23:29:32,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:29:32,756 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:29:32,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:29:33,753 INFO L134 CoverageAnalysis]: Checked inductivity of 5547 backedges. 0 proven. 5547 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:29:33,754 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:29:33,754 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585864678] [2021-10-28 23:29:33,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585864678] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:29:33,754 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1429959363] [2021-10-28 23:29:33,754 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-28 23:29:33,754 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:29:33,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:33,755 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:29:33,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2021-10-28 23:29:37,004 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 44 check-sat command(s) [2021-10-28 23:29:37,004 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:29:37,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 45 conjunts are in the unsatisfiable core [2021-10-28 23:29:37,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:29:37,798 INFO L134 CoverageAnalysis]: Checked inductivity of 5547 backedges. 0 proven. 5547 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:29:37,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1429959363] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:29:37,798 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:29:37,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 44] total 44 [2021-10-28 23:29:37,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096978639] [2021-10-28 23:29:37,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2021-10-28 23:29:37,800 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:29:37,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-10-28 23:29:37,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1035, Invalid=1035, Unknown=0, NotChecked=0, Total=2070 [2021-10-28 23:29:37,800 INFO L87 Difference]: Start difference. First operand 3420 states and 3973 transitions. Second operand has 46 states, 45 states have (on average 5.822222222222222) internal successors, (262), 45 states have internal predecessors, (262), 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) [2021-10-28 23:29:38,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:29:38,220 INFO L93 Difference]: Finished difference Result 6781 states and 7900 transitions. [2021-10-28 23:29:38,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-10-28 23:29:38,221 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 5.822222222222222) internal successors, (262), 45 states have internal predecessors, (262), 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) Word has length 262 [2021-10-28 23:29:38,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:29:38,228 INFO L225 Difference]: With dead ends: 6781 [2021-10-28 23:29:38,228 INFO L226 Difference]: Without dead ends: 6780 [2021-10-28 23:29:38,229 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1035, Invalid=1035, Unknown=0, NotChecked=0, Total=2070 [2021-10-28 23:29:38,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6780 states. [2021-10-28 23:29:38,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6780 to 3507. [2021-10-28 23:29:38,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3507 states, 3505 states have (on average 1.1626248216833095) internal successors, (4075), 3506 states have internal predecessors, (4075), 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) [2021-10-28 23:29:38,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3507 states to 3507 states and 4075 transitions. [2021-10-28 23:29:38,301 INFO L78 Accepts]: Start accepts. Automaton has 3507 states and 4075 transitions. Word has length 262 [2021-10-28 23:29:38,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:29:38,301 INFO L470 AbstractCegarLoop]: Abstraction has 3507 states and 4075 transitions. [2021-10-28 23:29:38,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 5.822222222222222) internal successors, (262), 45 states have internal predecessors, (262), 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) [2021-10-28 23:29:38,301 INFO L276 IsEmpty]: Start isEmpty. Operand 3507 states and 4075 transitions. [2021-10-28 23:29:38,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2021-10-28 23:29:38,304 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:29:38,304 INFO L513 BasicCegarLoop]: trace histogram [45, 45, 44, 44, 44, 44, 1, 1] [2021-10-28 23:29:38,340 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Ended with exit code 0 [2021-10-28 23:29:38,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68 [2021-10-28 23:29:38,505 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:29:38,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:29:38,505 INFO L85 PathProgramCache]: Analyzing trace with hash -850566313, now seen corresponding path program 43 times [2021-10-28 23:29:38,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:29:38,505 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504945464] [2021-10-28 23:29:38,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:29:38,505 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:29:38,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:29:39,585 INFO L134 CoverageAnalysis]: Checked inductivity of 5808 backedges. 0 proven. 5808 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:29:39,585 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:29:39,585 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504945464] [2021-10-28 23:29:39,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504945464] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:29:39,585 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [727107796] [2021-10-28 23:29:39,585 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-28 23:29:39,585 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:29:39,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:39,586 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:29:39,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2021-10-28 23:29:42,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:29:42,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 46 conjunts are in the unsatisfiable core [2021-10-28 23:29:42,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:29:43,582 INFO L134 CoverageAnalysis]: Checked inductivity of 5808 backedges. 0 proven. 5808 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:29:43,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [727107796] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:29:43,583 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:29:43,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 45] total 45 [2021-10-28 23:29:43,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090730202] [2021-10-28 23:29:43,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2021-10-28 23:29:43,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:29:43,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2021-10-28 23:29:43,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1081, Invalid=1081, Unknown=0, NotChecked=0, Total=2162 [2021-10-28 23:29:43,585 INFO L87 Difference]: Start difference. First operand 3507 states and 4075 transitions. Second operand has 47 states, 46 states have (on average 5.826086956521739) internal successors, (268), 46 states have internal predecessors, (268), 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) [2021-10-28 23:29:44,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:29:44,010 INFO L93 Difference]: Finished difference Result 6957 states and 8106 transitions. [2021-10-28 23:29:44,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-10-28 23:29:44,010 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 46 states have (on average 5.826086956521739) internal successors, (268), 46 states have internal predecessors, (268), 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) Word has length 268 [2021-10-28 23:29:44,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:29:44,017 INFO L225 Difference]: With dead ends: 6957 [2021-10-28 23:29:44,017 INFO L226 Difference]: Without dead ends: 6956 [2021-10-28 23:29:44,020 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1081, Invalid=1081, Unknown=0, NotChecked=0, Total=2162 [2021-10-28 23:29:44,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6956 states. [2021-10-28 23:29:44,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6956 to 3594. [2021-10-28 23:29:44,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3594 states, 3592 states have (on average 1.1628619153674833) internal successors, (4177), 3593 states have internal predecessors, (4177), 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) [2021-10-28 23:29:44,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3594 states to 3594 states and 4177 transitions. [2021-10-28 23:29:44,152 INFO L78 Accepts]: Start accepts. Automaton has 3594 states and 4177 transitions. Word has length 268 [2021-10-28 23:29:44,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:29:44,153 INFO L470 AbstractCegarLoop]: Abstraction has 3594 states and 4177 transitions. [2021-10-28 23:29:44,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 46 states have (on average 5.826086956521739) internal successors, (268), 46 states have internal predecessors, (268), 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) [2021-10-28 23:29:44,153 INFO L276 IsEmpty]: Start isEmpty. Operand 3594 states and 4177 transitions. [2021-10-28 23:29:44,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2021-10-28 23:29:44,155 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:29:44,156 INFO L513 BasicCegarLoop]: trace histogram [45, 44, 44, 31, 31, 31, 14, 14, 14, 1, 1] [2021-10-28 23:29:44,196 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Ended with exit code 0 [2021-10-28 23:29:44,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2021-10-28 23:29:44,371 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:29:44,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:29:44,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1433281964, now seen corresponding path program 22 times [2021-10-28 23:29:44,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:29:44,372 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886180766] [2021-10-28 23:29:44,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:29:44,372 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:29:44,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:29:44,988 INFO L134 CoverageAnalysis]: Checked inductivity of 5028 backedges. 1669 proven. 2852 refuted. 0 times theorem prover too weak. 507 trivial. 0 not checked. [2021-10-28 23:29:44,988 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:29:44,988 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886180766] [2021-10-28 23:29:44,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886180766] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:29:44,988 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1268896948] [2021-10-28 23:29:44,988 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 23:29:44,989 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:29:44,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:44,989 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:29:44,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2021-10-28 23:29:48,331 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 23:29:48,331 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:29:48,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 33 conjunts are in the unsatisfiable core [2021-10-28 23:29:48,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:29:49,041 INFO L134 CoverageAnalysis]: Checked inductivity of 5028 backedges. 1669 proven. 2852 refuted. 0 times theorem prover too weak. 507 trivial. 0 not checked. [2021-10-28 23:29:49,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1268896948] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:29:49,042 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:29:49,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 33 [2021-10-28 23:29:49,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39386273] [2021-10-28 23:29:49,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-10-28 23:29:49,043 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:29:49,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-10-28 23:29:49,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=561, Invalid=561, Unknown=0, NotChecked=0, Total=1122 [2021-10-28 23:29:49,044 INFO L87 Difference]: Start difference. First operand 3594 states and 4177 transitions. Second operand has 34 states, 34 states have (on average 5.764705882352941) internal successors, (196), 33 states have internal predecessors, (196), 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) [2021-10-28 23:29:49,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:29:49,256 INFO L93 Difference]: Finished difference Result 7015 states and 8182 transitions. [2021-10-28 23:29:49,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-28 23:29:49,256 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 5.764705882352941) internal successors, (196), 33 states have internal predecessors, (196), 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) Word has length 270 [2021-10-28 23:29:49,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:29:49,260 INFO L225 Difference]: With dead ends: 7015 [2021-10-28 23:29:49,260 INFO L226 Difference]: Without dead ends: 3604 [2021-10-28 23:29:49,263 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=561, Invalid=561, Unknown=0, NotChecked=0, Total=1122 [2021-10-28 23:29:49,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3604 states. [2021-10-28 23:29:49,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3604 to 3600. [2021-10-28 23:29:49,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3600 states, 3598 states have (on average 1.1625903279599779) internal successors, (4183), 3599 states have internal predecessors, (4183), 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) [2021-10-28 23:29:49,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3600 states to 3600 states and 4183 transitions. [2021-10-28 23:29:49,331 INFO L78 Accepts]: Start accepts. Automaton has 3600 states and 4183 transitions. Word has length 270 [2021-10-28 23:29:49,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:29:49,331 INFO L470 AbstractCegarLoop]: Abstraction has 3600 states and 4183 transitions. [2021-10-28 23:29:49,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 5.764705882352941) internal successors, (196), 33 states have internal predecessors, (196), 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) [2021-10-28 23:29:49,332 INFO L276 IsEmpty]: Start isEmpty. Operand 3600 states and 4183 transitions. [2021-10-28 23:29:49,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2021-10-28 23:29:49,334 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:29:49,334 INFO L513 BasicCegarLoop]: trace histogram [46, 46, 45, 45, 45, 45, 1, 1] [2021-10-28 23:29:49,373 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Forceful destruction successful, exit code 0 [2021-10-28 23:29:49,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:29:49,535 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:29:49,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:29:49,536 INFO L85 PathProgramCache]: Analyzing trace with hash 907618448, now seen corresponding path program 44 times [2021-10-28 23:29:49,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:29:49,536 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785898486] [2021-10-28 23:29:49,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:29:49,536 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:29:49,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:29:50,665 INFO L134 CoverageAnalysis]: Checked inductivity of 6075 backedges. 0 proven. 6075 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:29:50,665 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:29:50,666 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785898486] [2021-10-28 23:29:50,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785898486] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:29:50,666 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [743333059] [2021-10-28 23:29:50,666 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:29:50,666 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:29:50,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:50,667 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:29:50,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2021-10-28 23:29:54,196 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 23:29:54,196 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:29:54,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 47 conjunts are in the unsatisfiable core [2021-10-28 23:29:54,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:29:55,048 INFO L134 CoverageAnalysis]: Checked inductivity of 6075 backedges. 0 proven. 6075 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:29:55,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [743333059] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:29:55,048 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:29:55,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46] total 46 [2021-10-28 23:29:55,049 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573135775] [2021-10-28 23:29:55,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2021-10-28 23:29:55,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:29:55,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-10-28 23:29:55,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2021-10-28 23:29:55,051 INFO L87 Difference]: Start difference. First operand 3600 states and 4183 transitions. Second operand has 48 states, 47 states have (on average 5.829787234042553) internal successors, (274), 47 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) [2021-10-28 23:29:55,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:29:55,537 INFO L93 Difference]: Finished difference Result 7139 states and 8318 transitions. [2021-10-28 23:29:55,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-10-28 23:29:55,537 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 5.829787234042553) internal successors, (274), 47 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) Word has length 274 [2021-10-28 23:29:55,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:29:55,546 INFO L225 Difference]: With dead ends: 7139 [2021-10-28 23:29:55,546 INFO L226 Difference]: Without dead ends: 7138 [2021-10-28 23:29:55,548 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2021-10-28 23:29:55,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7138 states. [2021-10-28 23:29:55,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7138 to 3687. [2021-10-28 23:29:55,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3687 states, 3685 states have (on average 1.162822252374491) internal successors, (4285), 3686 states have internal predecessors, (4285), 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) [2021-10-28 23:29:55,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3687 states to 3687 states and 4285 transitions. [2021-10-28 23:29:55,649 INFO L78 Accepts]: Start accepts. Automaton has 3687 states and 4285 transitions. Word has length 274 [2021-10-28 23:29:55,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:29:55,649 INFO L470 AbstractCegarLoop]: Abstraction has 3687 states and 4285 transitions. [2021-10-28 23:29:55,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 5.829787234042553) internal successors, (274), 47 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) [2021-10-28 23:29:55,650 INFO L276 IsEmpty]: Start isEmpty. Operand 3687 states and 4285 transitions. [2021-10-28 23:29:55,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2021-10-28 23:29:55,653 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:29:55,653 INFO L513 BasicCegarLoop]: trace histogram [46, 45, 45, 32, 32, 32, 14, 14, 14, 1, 1] [2021-10-28 23:29:55,690 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Ended with exit code 0 [2021-10-28 23:29:55,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:29:55,854 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:29:55,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:29:55,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1168277339, now seen corresponding path program 23 times [2021-10-28 23:29:55,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:29:55,855 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847946076] [2021-10-28 23:29:55,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:29:55,855 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:29:55,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:29:56,525 INFO L134 CoverageAnalysis]: Checked inductivity of 5269 backedges. 1722 proven. 3040 refuted. 0 times theorem prover too weak. 507 trivial. 0 not checked. [2021-10-28 23:29:56,525 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:29:56,525 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847946076] [2021-10-28 23:29:56,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847946076] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:29:56,525 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [997137971] [2021-10-28 23:29:56,525 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 23:29:56,526 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:29:56,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:56,526 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:29:56,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2021-10-28 23:30:00,092 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 34 check-sat command(s) [2021-10-28 23:30:00,092 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:30:00,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 34 conjunts are in the unsatisfiable core [2021-10-28 23:30:00,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:30:00,926 INFO L134 CoverageAnalysis]: Checked inductivity of 5269 backedges. 1722 proven. 3040 refuted. 0 times theorem prover too weak. 507 trivial. 0 not checked. [2021-10-28 23:30:00,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [997137971] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:30:00,927 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:30:00,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34] total 34 [2021-10-28 23:30:00,927 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141995442] [2021-10-28 23:30:00,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2021-10-28 23:30:00,928 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:30:00,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-10-28 23:30:00,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=595, Invalid=595, Unknown=0, NotChecked=0, Total=1190 [2021-10-28 23:30:00,928 INFO L87 Difference]: Start difference. First operand 3687 states and 4285 transitions. Second operand has 35 states, 35 states have (on average 5.771428571428571) internal successors, (202), 34 states have internal predecessors, (202), 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) [2021-10-28 23:30:01,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:30:01,070 INFO L93 Difference]: Finished difference Result 7195 states and 8392 transitions. [2021-10-28 23:30:01,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-10-28 23:30:01,071 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 5.771428571428571) internal successors, (202), 34 states have internal predecessors, (202), 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) Word has length 276 [2021-10-28 23:30:01,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:30:01,074 INFO L225 Difference]: With dead ends: 7195 [2021-10-28 23:30:01,074 INFO L226 Difference]: Without dead ends: 3697 [2021-10-28 23:30:01,078 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=595, Invalid=595, Unknown=0, NotChecked=0, Total=1190 [2021-10-28 23:30:01,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3697 states. [2021-10-28 23:30:01,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3697 to 3693. [2021-10-28 23:30:01,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3693 states, 3691 states have (on average 1.1625575724735844) internal successors, (4291), 3692 states have internal predecessors, (4291), 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) [2021-10-28 23:30:01,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3693 states to 3693 states and 4291 transitions. [2021-10-28 23:30:01,157 INFO L78 Accepts]: Start accepts. Automaton has 3693 states and 4291 transitions. Word has length 276 [2021-10-28 23:30:01,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:30:01,158 INFO L470 AbstractCegarLoop]: Abstraction has 3693 states and 4291 transitions. [2021-10-28 23:30:01,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 5.771428571428571) internal successors, (202), 34 states have internal predecessors, (202), 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) [2021-10-28 23:30:01,158 INFO L276 IsEmpty]: Start isEmpty. Operand 3693 states and 4291 transitions. [2021-10-28 23:30:01,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2021-10-28 23:30:01,160 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:30:01,161 INFO L513 BasicCegarLoop]: trace histogram [47, 47, 46, 46, 46, 46, 1, 1] [2021-10-28 23:30:01,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Forceful destruction successful, exit code 0 [2021-10-28 23:30:01,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable72 [2021-10-28 23:30:01,361 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:30:01,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:30:01,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1920966903, now seen corresponding path program 45 times [2021-10-28 23:30:01,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:30:01,362 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692399430] [2021-10-28 23:30:01,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:30:01,362 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:30:01,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:30:02,444 INFO L134 CoverageAnalysis]: Checked inductivity of 6348 backedges. 0 proven. 6348 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:30:02,444 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:30:02,444 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692399430] [2021-10-28 23:30:02,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692399430] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:30:02,445 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1175928465] [2021-10-28 23:30:02,445 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 23:30:02,445 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:30:02,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:30:02,446 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:30:02,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Waiting until timeout for monitored process [2021-10-28 23:30:06,100 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 47 check-sat command(s) [2021-10-28 23:30:06,100 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:30:06,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 48 conjunts are in the unsatisfiable core [2021-10-28 23:30:06,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:30:07,231 INFO L134 CoverageAnalysis]: Checked inductivity of 6348 backedges. 0 proven. 6348 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:30:07,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1175928465] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:30:07,232 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:30:07,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47] total 47 [2021-10-28 23:30:07,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505383459] [2021-10-28 23:30:07,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2021-10-28 23:30:07,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:30:07,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-10-28 23:30:07,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2021-10-28 23:30:07,234 INFO L87 Difference]: Start difference. First operand 3693 states and 4291 transitions. Second operand has 49 states, 48 states have (on average 5.833333333333333) internal successors, (280), 48 states have internal predecessors, (280), 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) [2021-10-28 23:30:07,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:30:07,763 INFO L93 Difference]: Finished difference Result 7321 states and 8530 transitions. [2021-10-28 23:30:07,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-10-28 23:30:07,764 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 48 states have (on average 5.833333333333333) internal successors, (280), 48 states have internal predecessors, (280), 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) Word has length 280 [2021-10-28 23:30:07,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:30:07,772 INFO L225 Difference]: With dead ends: 7321 [2021-10-28 23:30:07,772 INFO L226 Difference]: Without dead ends: 7320 [2021-10-28 23:30:07,774 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2021-10-28 23:30:07,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7320 states. [2021-10-28 23:30:07,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7320 to 3780. [2021-10-28 23:30:07,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3780 states, 3778 states have (on average 1.1627845420857597) internal successors, (4393), 3779 states have internal predecessors, (4393), 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) [2021-10-28 23:30:07,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3780 states to 3780 states and 4393 transitions. [2021-10-28 23:30:07,850 INFO L78 Accepts]: Start accepts. Automaton has 3780 states and 4393 transitions. Word has length 280 [2021-10-28 23:30:07,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:30:07,852 INFO L470 AbstractCegarLoop]: Abstraction has 3780 states and 4393 transitions. [2021-10-28 23:30:07,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 48 states have (on average 5.833333333333333) internal successors, (280), 48 states have internal predecessors, (280), 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) [2021-10-28 23:30:07,852 INFO L276 IsEmpty]: Start isEmpty. Operand 3780 states and 4393 transitions. [2021-10-28 23:30:07,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2021-10-28 23:30:07,855 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:30:07,856 INFO L513 BasicCegarLoop]: trace histogram [47, 46, 46, 33, 33, 33, 14, 14, 14, 1, 1] [2021-10-28 23:30:07,894 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Forceful destruction successful, exit code 0 [2021-10-28 23:30:08,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:30:08,057 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:30:08,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:30:08,058 INFO L85 PathProgramCache]: Analyzing trace with hash -724501282, now seen corresponding path program 24 times [2021-10-28 23:30:08,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:30:08,058 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114799734] [2021-10-28 23:30:08,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:30:08,058 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:30:08,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:30:08,699 INFO L134 CoverageAnalysis]: Checked inductivity of 5516 backedges. 1775 proven. 3234 refuted. 0 times theorem prover too weak. 507 trivial. 0 not checked. [2021-10-28 23:30:08,700 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:30:08,700 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114799734] [2021-10-28 23:30:08,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114799734] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:30:08,700 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [768026130] [2021-10-28 23:30:08,701 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-28 23:30:08,701 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:30:08,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:30:08,713 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:30:08,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Waiting until timeout for monitored process [2021-10-28 23:30:12,628 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 29 check-sat command(s) [2021-10-28 23:30:12,629 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:30:12,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-28 23:30:12,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:30:13,885 INFO L134 CoverageAnalysis]: Checked inductivity of 5516 backedges. 2045 proven. 619 refuted. 0 times theorem prover too weak. 2852 trivial. 0 not checked. [2021-10-28 23:30:13,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [768026130] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:30:13,885 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:30:13,886 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 17] total 52 [2021-10-28 23:30:13,886 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564065579] [2021-10-28 23:30:13,886 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2021-10-28 23:30:13,886 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:30:13,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2021-10-28 23:30:13,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1326, Invalid=1326, Unknown=0, NotChecked=0, Total=2652 [2021-10-28 23:30:13,887 INFO L87 Difference]: Start difference. First operand 3780 states and 4393 transitions. Second operand has 52 states, 52 states have (on average 5.9423076923076925) internal successors, (309), 52 states have internal predecessors, (309), 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) [2021-10-28 23:30:14,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:30:14,193 INFO L93 Difference]: Finished difference Result 7805 states and 9165 transitions. [2021-10-28 23:30:14,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-10-28 23:30:14,194 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 5.9423076923076925) internal successors, (309), 52 states have internal predecessors, (309), 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) Word has length 282 [2021-10-28 23:30:14,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:30:14,198 INFO L225 Difference]: With dead ends: 7805 [2021-10-28 23:30:14,198 INFO L226 Difference]: Without dead ends: 4220 [2021-10-28 23:30:14,202 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1326, Invalid=1326, Unknown=0, NotChecked=0, Total=2652 [2021-10-28 23:30:14,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4220 states. [2021-10-28 23:30:14,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4220 to 4188. [2021-10-28 23:30:14,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4188 states, 4186 states have (on average 1.1624462494027712) internal successors, (4866), 4187 states have internal predecessors, (4866), 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) [2021-10-28 23:30:14,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4188 states to 4188 states and 4866 transitions. [2021-10-28 23:30:14,385 INFO L78 Accepts]: Start accepts. Automaton has 4188 states and 4866 transitions. Word has length 282 [2021-10-28 23:30:14,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:30:14,386 INFO L470 AbstractCegarLoop]: Abstraction has 4188 states and 4866 transitions. [2021-10-28 23:30:14,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 5.9423076923076925) internal successors, (309), 52 states have internal predecessors, (309), 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) [2021-10-28 23:30:14,386 INFO L276 IsEmpty]: Start isEmpty. Operand 4188 states and 4866 transitions. [2021-10-28 23:30:14,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2021-10-28 23:30:14,391 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:30:14,391 INFO L513 BasicCegarLoop]: trace histogram [48, 48, 47, 47, 47, 47, 1, 1] [2021-10-28 23:30:14,436 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Ended with exit code 0 [2021-10-28 23:30:14,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:30:14,607 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:30:14,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:30:14,608 INFO L85 PathProgramCache]: Analyzing trace with hash 217650882, now seen corresponding path program 46 times [2021-10-28 23:30:14,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:30:14,608 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293539708] [2021-10-28 23:30:14,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:30:14,608 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:30:14,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:30:15,829 INFO L134 CoverageAnalysis]: Checked inductivity of 6627 backedges. 0 proven. 6627 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:30:15,830 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:30:15,830 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293539708] [2021-10-28 23:30:15,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293539708] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:30:15,830 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [518974855] [2021-10-28 23:30:15,830 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 23:30:15,830 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:30:15,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:30:15,831 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:30:15,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process [2021-10-28 23:30:19,804 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 23:30:19,804 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:30:19,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 49 conjunts are in the unsatisfiable core [2021-10-28 23:30:19,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:30:20,702 INFO L134 CoverageAnalysis]: Checked inductivity of 6627 backedges. 0 proven. 6627 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:30:20,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [518974855] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:30:20,703 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:30:20,703 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48] total 48 [2021-10-28 23:30:20,703 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614404752] [2021-10-28 23:30:20,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2021-10-28 23:30:20,704 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:30:20,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2021-10-28 23:30:20,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1225, Invalid=1225, Unknown=0, NotChecked=0, Total=2450 [2021-10-28 23:30:20,705 INFO L87 Difference]: Start difference. First operand 4188 states and 4866 transitions. Second operand has 50 states, 49 states have (on average 5.836734693877551) internal successors, (286), 49 states have internal predecessors, (286), 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) [2021-10-28 23:30:21,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:30:21,249 INFO L93 Difference]: Finished difference Result 8307 states and 9678 transitions. [2021-10-28 23:30:21,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-10-28 23:30:21,250 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 49 states have (on average 5.836734693877551) internal successors, (286), 49 states have internal predecessors, (286), 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) Word has length 286 [2021-10-28 23:30:21,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:30:21,257 INFO L225 Difference]: With dead ends: 8307 [2021-10-28 23:30:21,258 INFO L226 Difference]: Without dead ends: 8306 [2021-10-28 23:30:21,259 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1225, Invalid=1225, Unknown=0, NotChecked=0, Total=2450 [2021-10-28 23:30:21,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8306 states. [2021-10-28 23:30:21,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8306 to 4287. [2021-10-28 23:30:21,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4287 states, 4285 states have (on average 1.1626604434072345) internal successors, (4982), 4286 states have internal predecessors, (4982), 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) [2021-10-28 23:30:21,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4287 states to 4287 states and 4982 transitions. [2021-10-28 23:30:21,393 INFO L78 Accepts]: Start accepts. Automaton has 4287 states and 4982 transitions. Word has length 286 [2021-10-28 23:30:21,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:30:21,394 INFO L470 AbstractCegarLoop]: Abstraction has 4287 states and 4982 transitions. [2021-10-28 23:30:21,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 49 states have (on average 5.836734693877551) internal successors, (286), 49 states have internal predecessors, (286), 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) [2021-10-28 23:30:21,394 INFO L276 IsEmpty]: Start isEmpty. Operand 4287 states and 4982 transitions. [2021-10-28 23:30:21,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2021-10-28 23:30:21,397 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:30:21,397 INFO L513 BasicCegarLoop]: trace histogram [49, 49, 48, 48, 48, 48, 1, 1] [2021-10-28 23:30:21,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Forceful destruction successful, exit code 0 [2021-10-28 23:30:21,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable75 [2021-10-28 23:30:21,598 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:30:21,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:30:21,598 INFO L85 PathProgramCache]: Analyzing trace with hash -517120069, now seen corresponding path program 47 times [2021-10-28 23:30:21,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:30:21,599 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020564241] [2021-10-28 23:30:21,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:30:21,599 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:30:21,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:30:22,894 INFO L134 CoverageAnalysis]: Checked inductivity of 6912 backedges. 0 proven. 6912 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:30:22,894 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:30:22,894 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020564241] [2021-10-28 23:30:22,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020564241] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:30:22,895 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [310017568] [2021-10-28 23:30:22,895 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 23:30:22,895 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:30:22,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:30:22,896 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:30:22,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Waiting until timeout for monitored process [2021-10-28 23:30:26,988 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 49 check-sat command(s) [2021-10-28 23:30:26,989 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:30:26,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 50 conjunts are in the unsatisfiable core [2021-10-28 23:30:26,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:30:27,860 INFO L134 CoverageAnalysis]: Checked inductivity of 6912 backedges. 0 proven. 6912 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:30:27,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [310017568] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:30:27,861 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:30:27,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49] total 49 [2021-10-28 23:30:27,861 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258539324] [2021-10-28 23:30:27,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2021-10-28 23:30:27,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:30:27,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2021-10-28 23:30:27,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1275, Invalid=1275, Unknown=0, NotChecked=0, Total=2550 [2021-10-28 23:30:27,863 INFO L87 Difference]: Start difference. First operand 4287 states and 4982 transitions. Second operand has 51 states, 50 states have (on average 5.84) internal successors, (292), 50 states have internal predecessors, (292), 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) [2021-10-28 23:30:28,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:30:28,359 INFO L93 Difference]: Finished difference Result 8507 states and 9912 transitions. [2021-10-28 23:30:28,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-10-28 23:30:28,359 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 50 states have (on average 5.84) internal successors, (292), 50 states have internal predecessors, (292), 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) Word has length 292 [2021-10-28 23:30:28,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:30:28,368 INFO L225 Difference]: With dead ends: 8507 [2021-10-28 23:30:28,369 INFO L226 Difference]: Without dead ends: 8506 [2021-10-28 23:30:28,371 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1275, Invalid=1275, Unknown=0, NotChecked=0, Total=2550 [2021-10-28 23:30:28,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8506 states. [2021-10-28 23:30:28,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8506 to 4386. [2021-10-28 23:30:28,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4386 states, 4384 states have (on average 1.1628649635036497) internal successors, (5098), 4385 states have internal predecessors, (5098), 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) [2021-10-28 23:30:28,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4386 states to 4386 states and 5098 transitions. [2021-10-28 23:30:28,534 INFO L78 Accepts]: Start accepts. Automaton has 4386 states and 5098 transitions. Word has length 292 [2021-10-28 23:30:28,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:30:28,535 INFO L470 AbstractCegarLoop]: Abstraction has 4386 states and 5098 transitions. [2021-10-28 23:30:28,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 50 states have (on average 5.84) internal successors, (292), 50 states have internal predecessors, (292), 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) [2021-10-28 23:30:28,535 INFO L276 IsEmpty]: Start isEmpty. Operand 4386 states and 5098 transitions. [2021-10-28 23:30:28,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2021-10-28 23:30:28,539 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:30:28,540 INFO L513 BasicCegarLoop]: trace histogram [50, 50, 49, 49, 49, 49, 1, 1] [2021-10-28 23:30:28,583 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Ended with exit code 0 [2021-10-28 23:30:28,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable76 [2021-10-28 23:30:28,748 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:30:28,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:30:28,749 INFO L85 PathProgramCache]: Analyzing trace with hash -218412556, now seen corresponding path program 48 times [2021-10-28 23:30:28,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:30:28,749 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219515185] [2021-10-28 23:30:28,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:30:28,749 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:30:28,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:30:30,125 INFO L134 CoverageAnalysis]: Checked inductivity of 7203 backedges. 0 proven. 7203 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:30:30,126 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:30:30,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219515185] [2021-10-28 23:30:30,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219515185] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:30:30,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [815704877] [2021-10-28 23:30:30,126 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-28 23:30:30,126 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:30:30,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:30:30,127 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:30:30,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Waiting until timeout for monitored process [2021-10-28 23:30:34,219 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 50 check-sat command(s) [2021-10-28 23:30:34,219 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:30:34,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 51 conjunts are in the unsatisfiable core [2021-10-28 23:30:34,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:30:35,164 INFO L134 CoverageAnalysis]: Checked inductivity of 7203 backedges. 0 proven. 7203 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:30:35,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [815704877] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:30:35,165 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:30:35,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50] total 50 [2021-10-28 23:30:35,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106250222] [2021-10-28 23:30:35,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2021-10-28 23:30:35,166 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:30:35,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2021-10-28 23:30:35,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1326, Invalid=1326, Unknown=0, NotChecked=0, Total=2652 [2021-10-28 23:30:35,168 INFO L87 Difference]: Start difference. First operand 4386 states and 5098 transitions. Second operand has 52 states, 51 states have (on average 5.8431372549019605) internal successors, (298), 51 states have internal predecessors, (298), 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) [2021-10-28 23:30:35,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:30:35,760 INFO L93 Difference]: Finished difference Result 8707 states and 10146 transitions. [2021-10-28 23:30:35,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-10-28 23:30:35,761 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 51 states have (on average 5.8431372549019605) internal successors, (298), 51 states have internal predecessors, (298), 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) Word has length 298 [2021-10-28 23:30:35,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:30:35,769 INFO L225 Difference]: With dead ends: 8707 [2021-10-28 23:30:35,769 INFO L226 Difference]: Without dead ends: 8706 [2021-10-28 23:30:35,771 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1326, Invalid=1326, Unknown=0, NotChecked=0, Total=2652 [2021-10-28 23:30:35,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8706 states. [2021-10-28 23:30:35,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8706 to 4485. [2021-10-28 23:30:35,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4485 states, 4483 states have (on average 1.163060450591122) internal successors, (5214), 4484 states have internal predecessors, (5214), 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) [2021-10-28 23:30:35,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4485 states to 4485 states and 5214 transitions. [2021-10-28 23:30:35,862 INFO L78 Accepts]: Start accepts. Automaton has 4485 states and 5214 transitions. Word has length 298 [2021-10-28 23:30:35,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:30:35,863 INFO L470 AbstractCegarLoop]: Abstraction has 4485 states and 5214 transitions. [2021-10-28 23:30:35,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 51 states have (on average 5.8431372549019605) internal successors, (298), 51 states have internal predecessors, (298), 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) [2021-10-28 23:30:35,863 INFO L276 IsEmpty]: Start isEmpty. Operand 4485 states and 5214 transitions. [2021-10-28 23:30:35,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2021-10-28 23:30:35,866 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:30:35,867 INFO L513 BasicCegarLoop]: trace histogram [51, 51, 50, 50, 50, 50, 1, 1] [2021-10-28 23:30:35,907 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Ended with exit code 0 [2021-10-28 23:30:36,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77,74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:30:36,067 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:30:36,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:30:36,068 INFO L85 PathProgramCache]: Analyzing trace with hash -260774547, now seen corresponding path program 49 times [2021-10-28 23:30:36,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:30:36,068 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700437010] [2021-10-28 23:30:36,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:30:36,068 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:30:36,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:30:37,323 INFO L134 CoverageAnalysis]: Checked inductivity of 7500 backedges. 0 proven. 7500 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:30:37,324 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:30:37,324 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700437010] [2021-10-28 23:30:37,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700437010] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:30:37,324 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693519722] [2021-10-28 23:30:37,324 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-28 23:30:37,324 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:30:37,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:30:37,325 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:30:37,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Waiting until timeout for monitored process [2021-10-28 23:30:41,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:30:41,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 52 conjunts are in the unsatisfiable core [2021-10-28 23:30:41,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:30:42,429 INFO L134 CoverageAnalysis]: Checked inductivity of 7500 backedges. 0 proven. 7500 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:30:42,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [693519722] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:30:42,430 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:30:42,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 51] total 51 [2021-10-28 23:30:42,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687931651] [2021-10-28 23:30:42,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2021-10-28 23:30:42,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:30:42,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2021-10-28 23:30:42,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2021-10-28 23:30:42,432 INFO L87 Difference]: Start difference. First operand 4485 states and 5214 transitions. Second operand has 53 states, 52 states have (on average 5.846153846153846) internal successors, (304), 52 states have internal predecessors, (304), 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) [2021-10-28 23:30:42,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:30:42,946 INFO L93 Difference]: Finished difference Result 8907 states and 10380 transitions. [2021-10-28 23:30:42,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-10-28 23:30:42,947 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 52 states have (on average 5.846153846153846) internal successors, (304), 52 states have internal predecessors, (304), 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) Word has length 304 [2021-10-28 23:30:42,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:30:42,957 INFO L225 Difference]: With dead ends: 8907 [2021-10-28 23:30:42,957 INFO L226 Difference]: Without dead ends: 8906 [2021-10-28 23:30:42,959 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2021-10-28 23:30:42,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8906 states. [2021-10-28 23:30:43,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8906 to 4584. [2021-10-28 23:30:43,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4584 states, 4582 states have (on average 1.1632474901789611) internal successors, (5330), 4583 states have internal predecessors, (5330), 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) [2021-10-28 23:30:43,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4584 states to 4584 states and 5330 transitions. [2021-10-28 23:30:43,056 INFO L78 Accepts]: Start accepts. Automaton has 4584 states and 5330 transitions. Word has length 304 [2021-10-28 23:30:43,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:30:43,057 INFO L470 AbstractCegarLoop]: Abstraction has 4584 states and 5330 transitions. [2021-10-28 23:30:43,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 52 states have (on average 5.846153846153846) internal successors, (304), 52 states have internal predecessors, (304), 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) [2021-10-28 23:30:43,057 INFO L276 IsEmpty]: Start isEmpty. Operand 4584 states and 5330 transitions. [2021-10-28 23:30:43,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2021-10-28 23:30:43,060 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:30:43,061 INFO L513 BasicCegarLoop]: trace histogram [51, 50, 50, 35, 35, 35, 16, 16, 16, 1, 1] [2021-10-28 23:30:43,100 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Forceful destruction successful, exit code 0 [2021-10-28 23:30:43,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78,75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:30:43,262 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:30:43,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:30:43,262 INFO L85 PathProgramCache]: Analyzing trace with hash 255768502, now seen corresponding path program 25 times [2021-10-28 23:30:43,262 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:30:43,263 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118472065] [2021-10-28 23:30:43,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:30:43,263 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:30:43,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:30:44,038 INFO L134 CoverageAnalysis]: Checked inductivity of 6480 backedges. 2165 proven. 3640 refuted. 0 times theorem prover too weak. 675 trivial. 0 not checked. [2021-10-28 23:30:44,038 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:30:44,038 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118472065] [2021-10-28 23:30:44,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118472065] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:30:44,038 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1912614034] [2021-10-28 23:30:44,038 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-28 23:30:44,039 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:30:44,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:30:44,040 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:30:44,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Waiting until timeout for monitored process [2021-10-28 23:30:48,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:30:48,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-28 23:30:48,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:30:49,098 INFO L134 CoverageAnalysis]: Checked inductivity of 6480 backedges. 2165 proven. 3640 refuted. 0 times theorem prover too weak. 675 trivial. 0 not checked. [2021-10-28 23:30:49,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1912614034] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:30:49,098 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:30:49,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37] total 37 [2021-10-28 23:30:49,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401950245] [2021-10-28 23:30:49,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2021-10-28 23:30:49,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:30:49,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-10-28 23:30:49,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=703, Invalid=703, Unknown=0, NotChecked=0, Total=1406 [2021-10-28 23:30:49,100 INFO L87 Difference]: Start difference. First operand 4584 states and 5330 transitions. Second operand has 38 states, 38 states have (on average 5.7894736842105265) internal successors, (220), 37 states have internal predecessors, (220), 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) [2021-10-28 23:30:49,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:30:49,335 INFO L93 Difference]: Finished difference Result 8971 states and 10464 transitions. [2021-10-28 23:30:49,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-10-28 23:30:49,336 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 5.7894736842105265) internal successors, (220), 37 states have internal predecessors, (220), 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) Word has length 306 [2021-10-28 23:30:49,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:30:49,340 INFO L225 Difference]: With dead ends: 8971 [2021-10-28 23:30:49,340 INFO L226 Difference]: Without dead ends: 4594 [2021-10-28 23:30:49,344 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=703, Invalid=703, Unknown=0, NotChecked=0, Total=1406 [2021-10-28 23:30:49,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4594 states. [2021-10-28 23:30:49,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4594 to 4590. [2021-10-28 23:30:49,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4590 states, 4588 states have (on average 1.163034001743679) internal successors, (5336), 4589 states have internal predecessors, (5336), 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) [2021-10-28 23:30:49,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4590 states to 4590 states and 5336 transitions. [2021-10-28 23:30:49,440 INFO L78 Accepts]: Start accepts. Automaton has 4590 states and 5336 transitions. Word has length 306 [2021-10-28 23:30:49,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:30:49,441 INFO L470 AbstractCegarLoop]: Abstraction has 4590 states and 5336 transitions. [2021-10-28 23:30:49,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 5.7894736842105265) internal successors, (220), 37 states have internal predecessors, (220), 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) [2021-10-28 23:30:49,441 INFO L276 IsEmpty]: Start isEmpty. Operand 4590 states and 5336 transitions. [2021-10-28 23:30:49,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2021-10-28 23:30:49,444 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:30:49,445 INFO L513 BasicCegarLoop]: trace histogram [52, 52, 51, 51, 51, 51, 1, 1] [2021-10-28 23:30:49,483 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Ended with exit code 0 [2021-10-28 23:30:49,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79,76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:30:49,645 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:30:49,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:30:49,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1780465114, now seen corresponding path program 50 times [2021-10-28 23:30:49,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:30:49,646 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270497281] [2021-10-28 23:30:49,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:30:49,646 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:30:49,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:30:51,023 INFO L134 CoverageAnalysis]: Checked inductivity of 7803 backedges. 0 proven. 7803 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:30:51,023 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:30:51,024 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270497281] [2021-10-28 23:30:51,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270497281] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:30:51,024 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [711746866] [2021-10-28 23:30:51,024 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:30:51,024 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:30:51,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:30:51,025 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:30:51,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Waiting until timeout for monitored process [2021-10-28 23:30:55,388 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 23:30:55,389 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:30:55,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 53 conjunts are in the unsatisfiable core [2021-10-28 23:30:55,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:30:56,341 INFO L134 CoverageAnalysis]: Checked inductivity of 7803 backedges. 0 proven. 7803 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:30:56,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [711746866] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:30:56,341 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:30:56,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 52] total 52 [2021-10-28 23:30:56,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133472552] [2021-10-28 23:30:56,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2021-10-28 23:30:56,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:30:56,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2021-10-28 23:30:56,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1431, Invalid=1431, Unknown=0, NotChecked=0, Total=2862 [2021-10-28 23:30:56,343 INFO L87 Difference]: Start difference. First operand 4590 states and 5336 transitions. Second operand has 54 states, 53 states have (on average 5.849056603773585) internal successors, (310), 53 states have internal predecessors, (310), 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) [2021-10-28 23:30:56,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:30:56,920 INFO L93 Difference]: Finished difference Result 9113 states and 10620 transitions. [2021-10-28 23:30:56,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-10-28 23:30:56,920 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 53 states have (on average 5.849056603773585) internal successors, (310), 53 states have internal predecessors, (310), 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) Word has length 310 [2021-10-28 23:30:56,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:30:56,929 INFO L225 Difference]: With dead ends: 9113 [2021-10-28 23:30:56,929 INFO L226 Difference]: Without dead ends: 9112 [2021-10-28 23:30:56,932 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1431, Invalid=1431, Unknown=0, NotChecked=0, Total=2862 [2021-10-28 23:30:56,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9112 states. [2021-10-28 23:30:57,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9112 to 4689. [2021-10-28 23:30:57,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4689 states, 4687 states have (on average 1.1632174098570514) internal successors, (5452), 4688 states have internal predecessors, (5452), 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) [2021-10-28 23:30:57,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4689 states to 4689 states and 5452 transitions. [2021-10-28 23:30:57,028 INFO L78 Accepts]: Start accepts. Automaton has 4689 states and 5452 transitions. Word has length 310 [2021-10-28 23:30:57,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:30:57,028 INFO L470 AbstractCegarLoop]: Abstraction has 4689 states and 5452 transitions. [2021-10-28 23:30:57,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 53 states have (on average 5.849056603773585) internal successors, (310), 53 states have internal predecessors, (310), 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) [2021-10-28 23:30:57,029 INFO L276 IsEmpty]: Start isEmpty. Operand 4689 states and 5452 transitions. [2021-10-28 23:30:57,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2021-10-28 23:30:57,032 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:30:57,032 INFO L513 BasicCegarLoop]: trace histogram [52, 51, 51, 36, 36, 36, 16, 16, 16, 1, 1] [2021-10-28 23:30:57,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Forceful destruction successful, exit code 0 [2021-10-28 23:30:57,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:30:57,233 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:30:57,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:30:57,233 INFO L85 PathProgramCache]: Analyzing trace with hash 122014255, now seen corresponding path program 26 times [2021-10-28 23:30:57,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:30:57,234 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544890064] [2021-10-28 23:30:57,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:30:57,234 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:30:57,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:30:58,004 INFO L134 CoverageAnalysis]: Checked inductivity of 6753 backedges. 2226 proven. 3852 refuted. 0 times theorem prover too weak. 675 trivial. 0 not checked. [2021-10-28 23:30:58,004 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:30:58,004 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544890064] [2021-10-28 23:30:58,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544890064] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:30:58,004 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1372313662] [2021-10-28 23:30:58,004 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:30:58,005 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:30:58,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:30:58,005 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:30:58,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Waiting until timeout for monitored process [2021-10-28 23:31:02,534 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 23:31:02,534 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:31:02,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 38 conjunts are in the unsatisfiable core [2021-10-28 23:31:02,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:31:03,364 INFO L134 CoverageAnalysis]: Checked inductivity of 6753 backedges. 2226 proven. 3852 refuted. 0 times theorem prover too weak. 675 trivial. 0 not checked. [2021-10-28 23:31:03,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1372313662] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:31:03,364 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:31:03,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38] total 38 [2021-10-28 23:31:03,365 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305834594] [2021-10-28 23:31:03,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2021-10-28 23:31:03,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:31:03,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-10-28 23:31:03,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=741, Invalid=741, Unknown=0, NotChecked=0, Total=1482 [2021-10-28 23:31:03,366 INFO L87 Difference]: Start difference. First operand 4689 states and 5452 transitions. Second operand has 39 states, 39 states have (on average 5.794871794871795) internal successors, (226), 38 states have internal predecessors, (226), 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) [2021-10-28 23:31:03,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:31:03,584 INFO L93 Difference]: Finished difference Result 9175 states and 10702 transitions. [2021-10-28 23:31:03,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-10-28 23:31:03,585 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 5.794871794871795) internal successors, (226), 38 states have internal predecessors, (226), 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) Word has length 312 [2021-10-28 23:31:03,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:31:03,591 INFO L225 Difference]: With dead ends: 9175 [2021-10-28 23:31:03,592 INFO L226 Difference]: Without dead ends: 4699 [2021-10-28 23:31:03,596 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 312 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=741, Invalid=741, Unknown=0, NotChecked=0, Total=1482 [2021-10-28 23:31:03,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4699 states. [2021-10-28 23:31:03,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4699 to 4695. [2021-10-28 23:31:03,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4695 states, 4693 states have (on average 1.1630087364159387) internal successors, (5458), 4694 states have internal predecessors, (5458), 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) [2021-10-28 23:31:03,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4695 states to 4695 states and 5458 transitions. [2021-10-28 23:31:03,731 INFO L78 Accepts]: Start accepts. Automaton has 4695 states and 5458 transitions. Word has length 312 [2021-10-28 23:31:03,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:31:03,731 INFO L470 AbstractCegarLoop]: Abstraction has 4695 states and 5458 transitions. [2021-10-28 23:31:03,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 5.794871794871795) internal successors, (226), 38 states have internal predecessors, (226), 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) [2021-10-28 23:31:03,731 INFO L276 IsEmpty]: Start isEmpty. Operand 4695 states and 5458 transitions. [2021-10-28 23:31:03,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2021-10-28 23:31:03,736 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:31:03,736 INFO L513 BasicCegarLoop]: trace histogram [53, 53, 52, 52, 52, 52, 1, 1] [2021-10-28 23:31:03,776 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Forceful destruction successful, exit code 0 [2021-10-28 23:31:03,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81,78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:31:03,937 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:31:03,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:31:03,938 INFO L85 PathProgramCache]: Analyzing trace with hash 917991455, now seen corresponding path program 51 times [2021-10-28 23:31:03,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:31:03,938 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890424784] [2021-10-28 23:31:03,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:31:03,938 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:31:04,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:31:05,405 INFO L134 CoverageAnalysis]: Checked inductivity of 8112 backedges. 0 proven. 8112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:31:05,406 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:31:05,407 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890424784] [2021-10-28 23:31:05,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890424784] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:31:05,407 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1010969576] [2021-10-28 23:31:05,407 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 23:31:05,407 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:31:05,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:31:05,408 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:31:05,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Waiting until timeout for monitored process [2021-10-28 23:31:10,105 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 53 check-sat command(s) [2021-10-28 23:31:10,106 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:31:10,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 54 conjunts are in the unsatisfiable core [2021-10-28 23:31:10,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:31:11,101 INFO L134 CoverageAnalysis]: Checked inductivity of 8112 backedges. 0 proven. 8112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:31:11,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1010969576] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:31:11,101 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:31:11,102 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53] total 53 [2021-10-28 23:31:11,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509219905] [2021-10-28 23:31:11,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2021-10-28 23:31:11,103 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:31:11,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2021-10-28 23:31:11,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1485, Invalid=1485, Unknown=0, NotChecked=0, Total=2970 [2021-10-28 23:31:11,104 INFO L87 Difference]: Start difference. First operand 4695 states and 5458 transitions. Second operand has 55 states, 54 states have (on average 5.851851851851852) internal successors, (316), 54 states have internal predecessors, (316), 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) [2021-10-28 23:31:11,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:31:11,680 INFO L93 Difference]: Finished difference Result 9319 states and 10860 transitions. [2021-10-28 23:31:11,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-10-28 23:31:11,681 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 54 states have (on average 5.851851851851852) internal successors, (316), 54 states have internal predecessors, (316), 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) Word has length 316 [2021-10-28 23:31:11,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:31:11,688 INFO L225 Difference]: With dead ends: 9319 [2021-10-28 23:31:11,689 INFO L226 Difference]: Without dead ends: 9318 [2021-10-28 23:31:11,690 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 315 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1485, Invalid=1485, Unknown=0, NotChecked=0, Total=2970 [2021-10-28 23:31:11,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9318 states. [2021-10-28 23:31:11,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9318 to 4794. [2021-10-28 23:31:11,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4794 states, 4792 states have (on average 1.1631886477462436) internal successors, (5574), 4793 states have internal predecessors, (5574), 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) [2021-10-28 23:31:11,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4794 states to 4794 states and 5574 transitions. [2021-10-28 23:31:11,784 INFO L78 Accepts]: Start accepts. Automaton has 4794 states and 5574 transitions. Word has length 316 [2021-10-28 23:31:11,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:31:11,784 INFO L470 AbstractCegarLoop]: Abstraction has 4794 states and 5574 transitions. [2021-10-28 23:31:11,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 54 states have (on average 5.851851851851852) internal successors, (316), 54 states have internal predecessors, (316), 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) [2021-10-28 23:31:11,784 INFO L276 IsEmpty]: Start isEmpty. Operand 4794 states and 5574 transitions. [2021-10-28 23:31:11,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2021-10-28 23:31:11,787 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:31:11,788 INFO L513 BasicCegarLoop]: trace histogram [53, 52, 52, 37, 37, 37, 16, 16, 16, 1, 1] [2021-10-28 23:31:11,823 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Ended with exit code 0 [2021-10-28 23:31:11,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable82 [2021-10-28 23:31:11,988 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:31:11,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:31:11,989 INFO L85 PathProgramCache]: Analyzing trace with hash -821469720, now seen corresponding path program 27 times [2021-10-28 23:31:11,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:31:11,989 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569861063] [2021-10-28 23:31:11,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:31:11,989 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:31:12,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:31:12,706 INFO L134 CoverageAnalysis]: Checked inductivity of 7032 backedges. 2287 proven. 4070 refuted. 0 times theorem prover too weak. 675 trivial. 0 not checked. [2021-10-28 23:31:12,706 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:31:12,706 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569861063] [2021-10-28 23:31:12,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569861063] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:31:12,706 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1086233168] [2021-10-28 23:31:12,706 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 23:31:12,707 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:31:12,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:31:12,707 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:31:12,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Waiting until timeout for monitored process [2021-10-28 23:31:16,531 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 17 check-sat command(s) [2021-10-28 23:31:16,531 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:31:16,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-28 23:31:16,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:31:17,762 INFO L134 CoverageAnalysis]: Checked inductivity of 7032 backedges. 2589 proven. 803 refuted. 0 times theorem prover too weak. 3640 trivial. 0 not checked. [2021-10-28 23:31:17,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1086233168] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:31:17,763 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:31:17,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 19] total 58 [2021-10-28 23:31:17,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985217457] [2021-10-28 23:31:17,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2021-10-28 23:31:17,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:31:17,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2021-10-28 23:31:17,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1653, Invalid=1653, Unknown=0, NotChecked=0, Total=3306 [2021-10-28 23:31:17,764 INFO L87 Difference]: Start difference. First operand 4794 states and 5574 transitions. Second operand has 58 states, 58 states have (on average 5.948275862068965) internal successors, (345), 58 states have internal predecessors, (345), 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) [2021-10-28 23:31:18,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:31:18,079 INFO L93 Difference]: Finished difference Result 9861 states and 11571 transitions. [2021-10-28 23:31:18,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-10-28 23:31:18,079 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 58 states have (on average 5.948275862068965) internal successors, (345), 58 states have internal predecessors, (345), 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) Word has length 318 [2021-10-28 23:31:18,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:31:18,084 INFO L225 Difference]: With dead ends: 9861 [2021-10-28 23:31:18,084 INFO L226 Difference]: Without dead ends: 5286 [2021-10-28 23:31:18,088 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1653, Invalid=1653, Unknown=0, NotChecked=0, Total=3306 [2021-10-28 23:31:18,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5286 states. [2021-10-28 23:31:18,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5286 to 5250. [2021-10-28 23:31:18,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5250 states, 5248 states have (on average 1.162919207317073) internal successors, (6103), 5249 states have internal predecessors, (6103), 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) [2021-10-28 23:31:18,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5250 states to 5250 states and 6103 transitions. [2021-10-28 23:31:18,184 INFO L78 Accepts]: Start accepts. Automaton has 5250 states and 6103 transitions. Word has length 318 [2021-10-28 23:31:18,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:31:18,184 INFO L470 AbstractCegarLoop]: Abstraction has 5250 states and 6103 transitions. [2021-10-28 23:31:18,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 58 states have (on average 5.948275862068965) internal successors, (345), 58 states have internal predecessors, (345), 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) [2021-10-28 23:31:18,184 INFO L276 IsEmpty]: Start isEmpty. Operand 5250 states and 6103 transitions. [2021-10-28 23:31:18,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2021-10-28 23:31:18,187 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:31:18,187 INFO L513 BasicCegarLoop]: trace histogram [54, 54, 53, 53, 53, 53, 1, 1] [2021-10-28 23:31:18,223 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Ended with exit code 0 [2021-10-28 23:31:18,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83,80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:31:18,388 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:31:18,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:31:18,388 INFO L85 PathProgramCache]: Analyzing trace with hash -2035777704, now seen corresponding path program 52 times [2021-10-28 23:31:18,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:31:18,389 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081818646] [2021-10-28 23:31:18,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:31:18,389 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:31:18,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:31:19,585 INFO L134 CoverageAnalysis]: Checked inductivity of 8427 backedges. 0 proven. 8427 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:31:19,585 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:31:19,585 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081818646] [2021-10-28 23:31:19,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081818646] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:31:19,585 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1939800632] [2021-10-28 23:31:19,585 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 23:31:19,586 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:31:19,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:31:19,588 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:31:19,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Waiting until timeout for monitored process [2021-10-28 23:31:23,653 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 23:31:23,653 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:31:23,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 539 conjuncts, 53 conjunts are in the unsatisfiable core [2021-10-28 23:31:23,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:31:26,987 INFO L134 CoverageAnalysis]: Checked inductivity of 8427 backedges. 8419 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-28 23:31:26,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1939800632] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:31:26,987 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:31:26,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [53] imperfect sequences [54] total 107 [2021-10-28 23:31:26,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249178232] [2021-10-28 23:31:26,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2021-10-28 23:31:26,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:31:26,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2021-10-28 23:31:26,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2970, Invalid=8586, Unknown=0, NotChecked=0, Total=11556 [2021-10-28 23:31:26,989 INFO L87 Difference]: Start difference. First operand 5250 states and 6103 transitions. Second operand has 54 states, 54 states have (on average 5.851851851851852) internal successors, (316), 53 states have internal predecessors, (316), 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) [2021-10-28 23:31:27,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:31:27,399 INFO L93 Difference]: Finished difference Result 6823 states and 7965 transitions. [2021-10-28 23:31:27,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-10-28 23:31:27,400 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 54 states have (on average 5.851851851851852) internal successors, (316), 53 states have internal predecessors, (316), 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) Word has length 322 [2021-10-28 23:31:27,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:31:27,402 INFO L225 Difference]: With dead ends: 6823 [2021-10-28 23:31:27,402 INFO L226 Difference]: Without dead ends: 1804 [2021-10-28 23:31:27,406 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 375 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2756 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=2970, Invalid=8586, Unknown=0, NotChecked=0, Total=11556 [2021-10-28 23:31:27,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1804 states. [2021-10-28 23:31:27,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1804 to 415. [2021-10-28 23:31:27,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 414 states have (on average 1.0314009661835748) internal successors, (427), 414 states have internal predecessors, (427), 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) [2021-10-28 23:31:27,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 427 transitions. [2021-10-28 23:31:27,448 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 427 transitions. Word has length 322 [2021-10-28 23:31:27,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:31:27,448 INFO L470 AbstractCegarLoop]: Abstraction has 415 states and 427 transitions. [2021-10-28 23:31:27,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 5.851851851851852) internal successors, (316), 53 states have internal predecessors, (316), 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) [2021-10-28 23:31:27,448 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 427 transitions. [2021-10-28 23:31:27,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2021-10-28 23:31:27,450 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:31:27,450 INFO L513 BasicCegarLoop]: trace histogram [57, 56, 56, 39, 39, 39, 18, 18, 18, 1, 1] [2021-10-28 23:31:27,487 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Forceful destruction successful, exit code 0 [2021-10-28 23:31:27,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84,81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:31:27,651 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:31:27,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:31:27,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1246320448, now seen corresponding path program 28 times [2021-10-28 23:31:27,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:31:27,652 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916148762] [2021-10-28 23:31:27,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:31:27,652 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:31:27,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:31:28,374 INFO L134 CoverageAnalysis]: Checked inductivity of 8116 backedges. 2725 proven. 4524 refuted. 0 times theorem prover too weak. 867 trivial. 0 not checked. [2021-10-28 23:31:28,374 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:31:28,374 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916148762] [2021-10-28 23:31:28,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916148762] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:31:28,374 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2015176593] [2021-10-28 23:31:28,374 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 23:31:28,374 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:31:28,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:31:28,375 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:31:28,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Waiting until timeout for monitored process [2021-10-28 23:31:32,531 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 23:31:32,531 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:31:32,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 41 conjunts are in the unsatisfiable core [2021-10-28 23:31:32,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:31:33,357 INFO L134 CoverageAnalysis]: Checked inductivity of 8116 backedges. 2725 proven. 4524 refuted. 0 times theorem prover too weak. 867 trivial. 0 not checked. [2021-10-28 23:31:33,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2015176593] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:31:33,357 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:31:33,358 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 41] total 41 [2021-10-28 23:31:33,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308910908] [2021-10-28 23:31:33,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2021-10-28 23:31:33,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:31:33,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-10-28 23:31:33,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=861, Invalid=861, Unknown=0, NotChecked=0, Total=1722 [2021-10-28 23:31:33,360 INFO L87 Difference]: Start difference. First operand 415 states and 427 transitions. Second operand has 42 states, 42 states have (on average 5.809523809523809) internal successors, (244), 41 states have internal predecessors, (244), 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) [2021-10-28 23:31:33,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:31:33,543 INFO L93 Difference]: Finished difference Result 521 states and 533 transitions. [2021-10-28 23:31:33,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-10-28 23:31:33,544 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 5.809523809523809) internal successors, (244), 41 states have internal predecessors, (244), 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) Word has length 342 [2021-10-28 23:31:33,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:31:33,545 INFO L225 Difference]: With dead ends: 521 [2021-10-28 23:31:33,545 INFO L226 Difference]: Without dead ends: 415 [2021-10-28 23:31:33,546 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 382 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=861, Invalid=861, Unknown=0, NotChecked=0, Total=1722 [2021-10-28 23:31:33,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2021-10-28 23:31:33,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 415. [2021-10-28 23:31:33,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 414 states have (on average 1.0289855072463767) internal successors, (426), 414 states have internal predecessors, (426), 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) [2021-10-28 23:31:33,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 426 transitions. [2021-10-28 23:31:33,563 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 426 transitions. Word has length 342 [2021-10-28 23:31:33,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:31:33,564 INFO L470 AbstractCegarLoop]: Abstraction has 415 states and 426 transitions. [2021-10-28 23:31:33,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 5.809523809523809) internal successors, (244), 41 states have internal predecessors, (244), 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) [2021-10-28 23:31:33,564 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 426 transitions. [2021-10-28 23:31:33,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2021-10-28 23:31:33,568 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:31:33,568 INFO L513 BasicCegarLoop]: trace histogram [58, 57, 57, 40, 40, 40, 18, 18, 18, 1, 1] [2021-10-28 23:31:33,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Forceful destruction successful, exit code 0 [2021-10-28 23:31:33,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable85 [2021-10-28 23:31:33,795 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:31:33,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:31:33,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1922059591, now seen corresponding path program 29 times [2021-10-28 23:31:33,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:31:33,796 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482033869] [2021-10-28 23:31:33,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:31:33,796 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:31:33,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:31:34,574 INFO L134 CoverageAnalysis]: Checked inductivity of 8421 backedges. 2794 proven. 4760 refuted. 0 times theorem prover too weak. 867 trivial. 0 not checked. [2021-10-28 23:31:34,574 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:31:34,574 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482033869] [2021-10-28 23:31:34,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482033869] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:31:34,575 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1129070970] [2021-10-28 23:31:34,575 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 23:31:34,576 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:31:34,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:31:34,578 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:31:34,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Waiting until timeout for monitored process [2021-10-28 23:31:38,807 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 42 check-sat command(s) [2021-10-28 23:31:38,808 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:31:38,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 583 conjuncts, 42 conjunts are in the unsatisfiable core [2021-10-28 23:31:38,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:31:39,642 INFO L134 CoverageAnalysis]: Checked inductivity of 8421 backedges. 2794 proven. 4760 refuted. 0 times theorem prover too weak. 867 trivial. 0 not checked. [2021-10-28 23:31:39,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1129070970] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:31:39,643 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:31:39,643 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 42] total 42 [2021-10-28 23:31:39,643 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163430875] [2021-10-28 23:31:39,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2021-10-28 23:31:39,644 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:31:39,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-10-28 23:31:39,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=903, Invalid=903, Unknown=0, NotChecked=0, Total=1806 [2021-10-28 23:31:39,645 INFO L87 Difference]: Start difference. First operand 415 states and 426 transitions. Second operand has 43 states, 43 states have (on average 5.813953488372093) internal successors, (250), 42 states have internal predecessors, (250), 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) [2021-10-28 23:31:39,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:31:39,767 INFO L93 Difference]: Finished difference Result 521 states and 532 transitions. [2021-10-28 23:31:39,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-10-28 23:31:39,768 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 5.813953488372093) internal successors, (250), 42 states have internal predecessors, (250), 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) Word has length 348 [2021-10-28 23:31:39,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:31:39,768 INFO L225 Difference]: With dead ends: 521 [2021-10-28 23:31:39,768 INFO L226 Difference]: Without dead ends: 415 [2021-10-28 23:31:39,769 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 348 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=903, Invalid=903, Unknown=0, NotChecked=0, Total=1806 [2021-10-28 23:31:39,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2021-10-28 23:31:39,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 415. [2021-10-28 23:31:39,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 414 states have (on average 1.0265700483091786) internal successors, (425), 414 states have internal predecessors, (425), 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) [2021-10-28 23:31:39,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 425 transitions. [2021-10-28 23:31:39,776 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 425 transitions. Word has length 348 [2021-10-28 23:31:39,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:31:39,776 INFO L470 AbstractCegarLoop]: Abstraction has 415 states and 425 transitions. [2021-10-28 23:31:39,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 5.813953488372093) internal successors, (250), 42 states have internal predecessors, (250), 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) [2021-10-28 23:31:39,776 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 425 transitions. [2021-10-28 23:31:39,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2021-10-28 23:31:39,778 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:31:39,778 INFO L513 BasicCegarLoop]: trace histogram [59, 58, 58, 41, 41, 41, 18, 18, 18, 1, 1] [2021-10-28 23:31:39,813 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Ended with exit code 0 [2021-10-28 23:31:39,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86,83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:31:39,978 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:31:39,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:31:39,979 INFO L85 PathProgramCache]: Analyzing trace with hash -2106745358, now seen corresponding path program 30 times [2021-10-28 23:31:39,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:31:39,979 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842076257] [2021-10-28 23:31:39,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:31:39,979 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:31:40,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:31:40,779 INFO L134 CoverageAnalysis]: Checked inductivity of 8732 backedges. 2863 proven. 5002 refuted. 0 times theorem prover too weak. 867 trivial. 0 not checked. [2021-10-28 23:31:40,779 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:31:40,779 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842076257] [2021-10-28 23:31:40,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842076257] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:31:40,779 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1639960102] [2021-10-28 23:31:40,780 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-28 23:31:40,780 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:31:40,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:31:40,780 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:31:40,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Waiting until timeout for monitored process [2021-10-28 23:31:45,049 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 37 check-sat command(s) [2021-10-28 23:31:45,049 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:31:45,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-28 23:31:45,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:31:46,408 INFO L134 CoverageAnalysis]: Checked inductivity of 8732 backedges. 3197 proven. 1011 refuted. 0 times theorem prover too weak. 4524 trivial. 0 not checked. [2021-10-28 23:31:46,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1639960102] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:31:46,408 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:31:46,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 21] total 64 [2021-10-28 23:31:46,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702795817] [2021-10-28 23:31:46,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2021-10-28 23:31:46,409 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:31:46,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2021-10-28 23:31:46,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2021-10-28 23:31:46,410 INFO L87 Difference]: Start difference. First operand 415 states and 425 transitions. Second operand has 64 states, 64 states have (on average 5.953125) internal successors, (381), 64 states have internal predecessors, (381), 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) [2021-10-28 23:31:46,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:31:46,692 INFO L93 Difference]: Finished difference Result 534 states and 546 transitions. [2021-10-28 23:31:46,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-10-28 23:31:46,693 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 5.953125) internal successors, (381), 64 states have internal predecessors, (381), 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) Word has length 354 [2021-10-28 23:31:46,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:31:46,693 INFO L225 Difference]: With dead ends: 534 [2021-10-28 23:31:46,693 INFO L226 Difference]: Without dead ends: 428 [2021-10-28 23:31:46,694 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2021-10-28 23:31:46,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2021-10-28 23:31:46,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 427. [2021-10-28 23:31:46,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 426 states have (on average 1.0211267605633803) internal successors, (435), 426 states have internal predecessors, (435), 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) [2021-10-28 23:31:46,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 435 transitions. [2021-10-28 23:31:46,701 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 435 transitions. Word has length 354 [2021-10-28 23:31:46,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:31:46,701 INFO L470 AbstractCegarLoop]: Abstraction has 427 states and 435 transitions. [2021-10-28 23:31:46,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 5.953125) internal successors, (381), 64 states have internal predecessors, (381), 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) [2021-10-28 23:31:46,702 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 435 transitions. [2021-10-28 23:31:46,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2021-10-28 23:31:46,704 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:31:46,704 INFO L513 BasicCegarLoop]: trace histogram [63, 62, 62, 43, 43, 43, 20, 20, 20, 1, 1] [2021-10-28 23:31:46,752 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Ended with exit code 0 [2021-10-28 23:31:46,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87,84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:31:46,919 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:31:46,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:31:46,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1988655306, now seen corresponding path program 31 times [2021-10-28 23:31:46,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:31:46,920 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706197045] [2021-10-28 23:31:46,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:31:46,920 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:31:47,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:31:47,824 INFO L134 CoverageAnalysis]: Checked inductivity of 9936 backedges. 3349 proven. 5504 refuted. 0 times theorem prover too weak. 1083 trivial. 0 not checked. [2021-10-28 23:31:47,824 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:31:47,824 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706197045] [2021-10-28 23:31:47,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706197045] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:31:47,824 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [938313926] [2021-10-28 23:31:47,824 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-28 23:31:47,824 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:31:47,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:31:47,826 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:31:47,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Waiting until timeout for monitored process [2021-10-28 23:31:52,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:31:52,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 633 conjuncts, 45 conjunts are in the unsatisfiable core [2021-10-28 23:31:52,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:31:52,988 INFO L134 CoverageAnalysis]: Checked inductivity of 9936 backedges. 3349 proven. 5504 refuted. 0 times theorem prover too weak. 1083 trivial. 0 not checked. [2021-10-28 23:31:52,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [938313926] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:31:52,989 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:31:52,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 45] total 45 [2021-10-28 23:31:52,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020684252] [2021-10-28 23:31:52,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2021-10-28 23:31:52,990 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:31:52,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-10-28 23:31:52,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1035, Invalid=1035, Unknown=0, NotChecked=0, Total=2070 [2021-10-28 23:31:52,990 INFO L87 Difference]: Start difference. First operand 427 states and 435 transitions. Second operand has 46 states, 46 states have (on average 5.826086956521739) internal successors, (268), 45 states have internal predecessors, (268), 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) [2021-10-28 23:31:53,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:31:53,123 INFO L93 Difference]: Finished difference Result 545 states and 553 transitions. [2021-10-28 23:31:53,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-10-28 23:31:53,124 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 5.826086956521739) internal successors, (268), 45 states have internal predecessors, (268), 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) Word has length 378 [2021-10-28 23:31:53,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:31:53,125 INFO L225 Difference]: With dead ends: 545 [2021-10-28 23:31:53,125 INFO L226 Difference]: Without dead ends: 427 [2021-10-28 23:31:53,125 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 422 GetRequests, 378 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1035, Invalid=1035, Unknown=0, NotChecked=0, Total=2070 [2021-10-28 23:31:53,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2021-10-28 23:31:53,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 427. [2021-10-28 23:31:53,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 426 states have (on average 1.0187793427230047) internal successors, (434), 426 states have internal predecessors, (434), 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) [2021-10-28 23:31:53,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 434 transitions. [2021-10-28 23:31:53,135 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 434 transitions. Word has length 378 [2021-10-28 23:31:53,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:31:53,135 INFO L470 AbstractCegarLoop]: Abstraction has 427 states and 434 transitions. [2021-10-28 23:31:53,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 5.826086956521739) internal successors, (268), 45 states have internal predecessors, (268), 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) [2021-10-28 23:31:53,136 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 434 transitions. [2021-10-28 23:31:53,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2021-10-28 23:31:53,138 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:31:53,138 INFO L513 BasicCegarLoop]: trace histogram [64, 63, 63, 44, 44, 44, 20, 20, 20, 1, 1] [2021-10-28 23:31:53,173 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Ended with exit code 0 [2021-10-28 23:31:53,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable88 [2021-10-28 23:31:53,343 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:31:53,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:31:53,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1435649469, now seen corresponding path program 32 times [2021-10-28 23:31:53,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:31:53,344 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357990444] [2021-10-28 23:31:53,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:31:53,344 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:31:53,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:31:54,222 INFO L134 CoverageAnalysis]: Checked inductivity of 10273 backedges. 3426 proven. 5764 refuted. 0 times theorem prover too weak. 1083 trivial. 0 not checked. [2021-10-28 23:31:54,222 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:31:54,222 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357990444] [2021-10-28 23:31:54,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357990444] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:31:54,222 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2108077241] [2021-10-28 23:31:54,223 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:31:54,223 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:31:54,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:31:54,223 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:31:54,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Waiting until timeout for monitored process [2021-10-28 23:31:58,748 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 23:31:58,748 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:31:58,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 643 conjuncts, 46 conjunts are in the unsatisfiable core [2021-10-28 23:31:58,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:31:59,597 INFO L134 CoverageAnalysis]: Checked inductivity of 10273 backedges. 3426 proven. 5764 refuted. 0 times theorem prover too weak. 1083 trivial. 0 not checked. [2021-10-28 23:31:59,597 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2108077241] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:31:59,597 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:31:59,597 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46] total 46 [2021-10-28 23:31:59,597 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770871816] [2021-10-28 23:31:59,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2021-10-28 23:31:59,598 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:31:59,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2021-10-28 23:31:59,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1081, Invalid=1081, Unknown=0, NotChecked=0, Total=2162 [2021-10-28 23:31:59,598 INFO L87 Difference]: Start difference. First operand 427 states and 434 transitions. Second operand has 47 states, 47 states have (on average 5.829787234042553) internal successors, (274), 46 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) [2021-10-28 23:31:59,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:31:59,745 INFO L93 Difference]: Finished difference Result 545 states and 552 transitions. [2021-10-28 23:31:59,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-10-28 23:31:59,745 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 5.829787234042553) internal successors, (274), 46 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) Word has length 384 [2021-10-28 23:31:59,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:31:59,746 INFO L225 Difference]: With dead ends: 545 [2021-10-28 23:31:59,746 INFO L226 Difference]: Without dead ends: 427 [2021-10-28 23:31:59,747 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 429 GetRequests, 384 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=1081, Invalid=1081, Unknown=0, NotChecked=0, Total=2162 [2021-10-28 23:31:59,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2021-10-28 23:31:59,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 427. [2021-10-28 23:31:59,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 426 states have (on average 1.016431924882629) internal successors, (433), 426 states have internal predecessors, (433), 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) [2021-10-28 23:31:59,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 433 transitions. [2021-10-28 23:31:59,758 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 433 transitions. Word has length 384 [2021-10-28 23:31:59,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:31:59,759 INFO L470 AbstractCegarLoop]: Abstraction has 427 states and 433 transitions. [2021-10-28 23:31:59,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 5.829787234042553) internal successors, (274), 46 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) [2021-10-28 23:31:59,759 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 433 transitions. [2021-10-28 23:31:59,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2021-10-28 23:31:59,761 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:31:59,761 INFO L513 BasicCegarLoop]: trace histogram [65, 64, 64, 45, 45, 45, 20, 20, 20, 1, 1] [2021-10-28 23:31:59,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Forceful destruction successful, exit code 0 [2021-10-28 23:31:59,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 86 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable89 [2021-10-28 23:31:59,962 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:31:59,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:31:59,962 INFO L85 PathProgramCache]: Analyzing trace with hash 342899964, now seen corresponding path program 33 times [2021-10-28 23:31:59,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:31:59,962 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119961940] [2021-10-28 23:31:59,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:31:59,963 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:32:00,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:32:00,948 INFO L134 CoverageAnalysis]: Checked inductivity of 10616 backedges. 3503 proven. 6030 refuted. 0 times theorem prover too weak. 1083 trivial. 0 not checked. [2021-10-28 23:32:00,948 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:32:00,948 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119961940] [2021-10-28 23:32:00,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119961940] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:32:00,948 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [220590370] [2021-10-28 23:32:00,949 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 23:32:00,949 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:32:00,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:00,949 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:32:00,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Waiting until timeout for monitored process [2021-10-28 23:32:05,425 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 21 check-sat command(s) [2021-10-28 23:32:05,425 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:32:05,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-28 23:32:05,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:32:07,028 INFO L134 CoverageAnalysis]: Checked inductivity of 10616 backedges. 3869 proven. 1243 refuted. 0 times theorem prover too weak. 5504 trivial. 0 not checked. [2021-10-28 23:32:07,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [220590370] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:32:07,028 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:32:07,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 23] total 70 [2021-10-28 23:32:07,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845688041] [2021-10-28 23:32:07,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2021-10-28 23:32:07,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:32:07,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2021-10-28 23:32:07,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2415, Invalid=2415, Unknown=0, NotChecked=0, Total=4830 [2021-10-28 23:32:07,030 INFO L87 Difference]: Start difference. First operand 427 states and 433 transitions. Second operand has 70 states, 70 states have (on average 5.957142857142857) internal successors, (417), 70 states have internal predecessors, (417), 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) [2021-10-28 23:32:07,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:32:07,413 INFO L93 Difference]: Finished difference Result 558 states and 566 transitions. [2021-10-28 23:32:07,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2021-10-28 23:32:07,414 INFO L78 Accepts]: Start accepts. Automaton has has 70 states, 70 states have (on average 5.957142857142857) internal successors, (417), 70 states have internal predecessors, (417), 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) Word has length 390 [2021-10-28 23:32:07,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:32:07,414 INFO L225 Difference]: With dead ends: 558 [2021-10-28 23:32:07,414 INFO L226 Difference]: Without dead ends: 440 [2021-10-28 23:32:07,415 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 368 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=2415, Invalid=2415, Unknown=0, NotChecked=0, Total=4830 [2021-10-28 23:32:07,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2021-10-28 23:32:07,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 439. [2021-10-28 23:32:07,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 438 states have (on average 1.0114155251141552) internal successors, (443), 438 states have internal predecessors, (443), 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) [2021-10-28 23:32:07,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 443 transitions. [2021-10-28 23:32:07,437 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 443 transitions. Word has length 390 [2021-10-28 23:32:07,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:32:07,438 INFO L470 AbstractCegarLoop]: Abstraction has 439 states and 443 transitions. [2021-10-28 23:32:07,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 70 states have (on average 5.957142857142857) internal successors, (417), 70 states have internal predecessors, (417), 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) [2021-10-28 23:32:07,438 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 443 transitions. [2021-10-28 23:32:07,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2021-10-28 23:32:07,439 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:32:07,440 INFO L513 BasicCegarLoop]: trace histogram [69, 68, 68, 47, 47, 47, 22, 22, 22, 1, 1] [2021-10-28 23:32:07,475 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Forceful destruction successful, exit code 0 [2021-10-28 23:32:07,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,87 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:32:07,640 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:32:07,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:32:07,641 INFO L85 PathProgramCache]: Analyzing trace with hash 388409300, now seen corresponding path program 34 times [2021-10-28 23:32:07,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:32:07,641 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14608086] [2021-10-28 23:32:07,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:32:07,641 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:32:07,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:32:08,651 INFO L134 CoverageAnalysis]: Checked inductivity of 11940 backedges. 4037 proven. 6580 refuted. 0 times theorem prover too weak. 1323 trivial. 0 not checked. [2021-10-28 23:32:08,652 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:32:08,652 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14608086] [2021-10-28 23:32:08,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14608086] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:32:08,652 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [312382821] [2021-10-28 23:32:08,652 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 23:32:08,652 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:32:08,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:08,653 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:32:08,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Waiting until timeout for monitored process [2021-10-28 23:32:13,306 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 23:32:13,306 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:32:13,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 693 conjuncts, 49 conjunts are in the unsatisfiable core [2021-10-28 23:32:13,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:32:14,397 INFO L134 CoverageAnalysis]: Checked inductivity of 11940 backedges. 4037 proven. 6580 refuted. 0 times theorem prover too weak. 1323 trivial. 0 not checked. [2021-10-28 23:32:14,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [312382821] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:32:14,397 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:32:14,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49] total 49 [2021-10-28 23:32:14,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810372582] [2021-10-28 23:32:14,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2021-10-28 23:32:14,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:32:14,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2021-10-28 23:32:14,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1225, Invalid=1225, Unknown=0, NotChecked=0, Total=2450 [2021-10-28 23:32:14,399 INFO L87 Difference]: Start difference. First operand 439 states and 443 transitions. Second operand has 50 states, 50 states have (on average 5.84) internal successors, (292), 49 states have internal predecessors, (292), 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) [2021-10-28 23:32:14,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:32:14,556 INFO L93 Difference]: Finished difference Result 569 states and 573 transitions. [2021-10-28 23:32:14,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-10-28 23:32:14,556 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 5.84) internal successors, (292), 49 states have internal predecessors, (292), 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) Word has length 414 [2021-10-28 23:32:14,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:32:14,557 INFO L225 Difference]: With dead ends: 569 [2021-10-28 23:32:14,557 INFO L226 Difference]: Without dead ends: 439 [2021-10-28 23:32:14,558 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 414 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1225, Invalid=1225, Unknown=0, NotChecked=0, Total=2450 [2021-10-28 23:32:14,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2021-10-28 23:32:14,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 439. [2021-10-28 23:32:14,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 438 states have (on average 1.0091324200913243) internal successors, (442), 438 states have internal predecessors, (442), 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) [2021-10-28 23:32:14,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 442 transitions. [2021-10-28 23:32:14,565 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 442 transitions. Word has length 414 [2021-10-28 23:32:14,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:32:14,565 INFO L470 AbstractCegarLoop]: Abstraction has 439 states and 442 transitions. [2021-10-28 23:32:14,565 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 5.84) internal successors, (292), 49 states have internal predecessors, (292), 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) [2021-10-28 23:32:14,566 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 442 transitions. [2021-10-28 23:32:14,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2021-10-28 23:32:14,568 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:32:14,568 INFO L513 BasicCegarLoop]: trace histogram [70, 69, 69, 48, 48, 48, 22, 22, 22, 1, 1] [2021-10-28 23:32:14,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Forceful destruction successful, exit code 0 [2021-10-28 23:32:14,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91,88 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:32:14,769 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:32:14,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:32:14,769 INFO L85 PathProgramCache]: Analyzing trace with hash -476946227, now seen corresponding path program 35 times [2021-10-28 23:32:14,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:32:14,769 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366314084] [2021-10-28 23:32:14,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:32:14,770 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:32:14,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:32:15,823 INFO L134 CoverageAnalysis]: Checked inductivity of 12309 backedges. 4122 proven. 6864 refuted. 0 times theorem prover too weak. 1323 trivial. 0 not checked. [2021-10-28 23:32:15,823 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:32:15,823 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366314084] [2021-10-28 23:32:15,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366314084] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:32:15,823 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323159886] [2021-10-28 23:32:15,823 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 23:32:15,823 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:32:15,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:15,824 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:32:15,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Waiting until timeout for monitored process [2021-10-28 23:32:20,588 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 50 check-sat command(s) [2021-10-28 23:32:20,588 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:32:20,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 703 conjuncts, 50 conjunts are in the unsatisfiable core [2021-10-28 23:32:20,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:32:21,526 INFO L134 CoverageAnalysis]: Checked inductivity of 12309 backedges. 4122 proven. 6864 refuted. 0 times theorem prover too weak. 1323 trivial. 0 not checked. [2021-10-28 23:32:21,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1323159886] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:32:21,527 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:32:21,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50] total 50 [2021-10-28 23:32:21,527 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529494848] [2021-10-28 23:32:21,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2021-10-28 23:32:21,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:32:21,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2021-10-28 23:32:21,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1275, Invalid=1275, Unknown=0, NotChecked=0, Total=2550 [2021-10-28 23:32:21,528 INFO L87 Difference]: Start difference. First operand 439 states and 442 transitions. Second operand has 51 states, 51 states have (on average 5.8431372549019605) internal successors, (298), 50 states have internal predecessors, (298), 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) [2021-10-28 23:32:21,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:32:21,700 INFO L93 Difference]: Finished difference Result 569 states and 572 transitions. [2021-10-28 23:32:21,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-10-28 23:32:21,700 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 5.8431372549019605) internal successors, (298), 50 states have internal predecessors, (298), 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) Word has length 420 [2021-10-28 23:32:21,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:32:21,701 INFO L225 Difference]: With dead ends: 569 [2021-10-28 23:32:21,701 INFO L226 Difference]: Without dead ends: 439 [2021-10-28 23:32:21,701 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 469 GetRequests, 420 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1275, Invalid=1275, Unknown=0, NotChecked=0, Total=2550 [2021-10-28 23:32:21,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2021-10-28 23:32:21,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 439. [2021-10-28 23:32:21,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 438 states have (on average 1.0068493150684932) internal successors, (441), 438 states have internal predecessors, (441), 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) [2021-10-28 23:32:21,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 441 transitions. [2021-10-28 23:32:21,709 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 441 transitions. Word has length 420 [2021-10-28 23:32:21,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:32:21,709 INFO L470 AbstractCegarLoop]: Abstraction has 439 states and 441 transitions. [2021-10-28 23:32:21,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 5.8431372549019605) internal successors, (298), 50 states have internal predecessors, (298), 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) [2021-10-28 23:32:21,709 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 441 transitions. [2021-10-28 23:32:21,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2021-10-28 23:32:21,711 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:32:21,711 INFO L513 BasicCegarLoop]: trace histogram [71, 70, 70, 49, 49, 49, 22, 22, 22, 1, 1] [2021-10-28 23:32:21,750 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Ended with exit code 0 [2021-10-28 23:32:21,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92,89 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:32:21,912 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:32:21,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:32:21,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1648605958, now seen corresponding path program 36 times [2021-10-28 23:32:21,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:32:21,912 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125651933] [2021-10-28 23:32:21,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:32:21,912 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:32:21,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:32:23,017 INFO L134 CoverageAnalysis]: Checked inductivity of 12684 backedges. 4207 proven. 7154 refuted. 0 times theorem prover too weak. 1323 trivial. 0 not checked. [2021-10-28 23:32:23,017 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:32:23,017 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125651933] [2021-10-28 23:32:23,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125651933] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:32:23,017 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1469738172] [2021-10-28 23:32:23,017 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-28 23:32:23,018 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:32:23,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:23,018 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:32:23,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Waiting until timeout for monitored process [2021-10-28 23:32:27,872 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 45 check-sat command(s) [2021-10-28 23:32:27,872 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:32:27,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 653 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-28 23:32:27,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:32:29,675 INFO L134 CoverageAnalysis]: Checked inductivity of 12684 backedges. 4605 proven. 1499 refuted. 0 times theorem prover too weak. 6580 trivial. 0 not checked. [2021-10-28 23:32:29,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1469738172] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:32:29,675 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:32:29,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 25] total 76 [2021-10-28 23:32:29,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007293841] [2021-10-28 23:32:29,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 76 states [2021-10-28 23:32:29,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:32:29,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2021-10-28 23:32:29,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2850, Invalid=2850, Unknown=0, NotChecked=0, Total=5700 [2021-10-28 23:32:29,679 INFO L87 Difference]: Start difference. First operand 439 states and 441 transitions. Second operand has 76 states, 76 states have (on average 5.9605263157894735) internal successors, (453), 76 states have internal predecessors, (453), 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) [2021-10-28 23:32:30,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:32:30,125 INFO L93 Difference]: Finished difference Result 582 states and 586 transitions. [2021-10-28 23:32:30,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2021-10-28 23:32:30,126 INFO L78 Accepts]: Start accepts. Automaton has has 76 states, 76 states have (on average 5.9605263157894735) internal successors, (453), 76 states have internal predecessors, (453), 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) Word has length 426 [2021-10-28 23:32:30,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:32:30,126 INFO L225 Difference]: With dead ends: 582 [2021-10-28 23:32:30,126 INFO L226 Difference]: Without dead ends: 452 [2021-10-28 23:32:30,127 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 476 GetRequests, 402 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=2850, Invalid=2850, Unknown=0, NotChecked=0, Total=5700 [2021-10-28 23:32:30,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2021-10-28 23:32:30,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 451. [2021-10-28 23:32:30,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 450 states have (on average 1.0022222222222221) internal successors, (451), 450 states have internal predecessors, (451), 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) [2021-10-28 23:32:30,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 451 transitions. [2021-10-28 23:32:30,135 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 451 transitions. Word has length 426 [2021-10-28 23:32:30,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:32:30,135 INFO L470 AbstractCegarLoop]: Abstraction has 451 states and 451 transitions. [2021-10-28 23:32:30,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 76 states, 76 states have (on average 5.9605263157894735) internal successors, (453), 76 states have internal predecessors, (453), 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) [2021-10-28 23:32:30,135 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 451 transitions. [2021-10-28 23:32:30,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2021-10-28 23:32:30,137 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:32:30,137 INFO L513 BasicCegarLoop]: trace histogram [75, 74, 74, 51, 51, 51, 24, 24, 24, 1, 1] [2021-10-28 23:32:30,174 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Ended with exit code 0 [2021-10-28 23:32:30,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93,90 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:32:30,338 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:32:30,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:32:30,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1799113250, now seen corresponding path program 37 times [2021-10-28 23:32:30,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:32:30,338 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035132859] [2021-10-28 23:32:30,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:32:30,338 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:32:30,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:32:32,428 INFO L134 CoverageAnalysis]: Checked inductivity of 14128 backedges. 0 proven. 14128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:32:32,428 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:32:32,428 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035132859] [2021-10-28 23:32:32,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035132859] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:32:32,428 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577281305] [2021-10-28 23:32:32,428 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-28 23:32:32,428 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:32:32,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:32,429 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:32:32,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Waiting until timeout for monitored process [2021-10-28 23:32:37,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:32:37,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 753 conjuncts, 76 conjunts are in the unsatisfiable core [2021-10-28 23:32:37,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:32:38,758 INFO L134 CoverageAnalysis]: Checked inductivity of 14128 backedges. 0 proven. 14128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:32:38,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1577281305] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:32:38,758 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:32:38,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [75, 75] total 75 [2021-10-28 23:32:38,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709819261] [2021-10-28 23:32:38,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 77 states [2021-10-28 23:32:38,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:32:38,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2021-10-28 23:32:38,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2926, Invalid=2926, Unknown=0, NotChecked=0, Total=5852 [2021-10-28 23:32:38,761 INFO L87 Difference]: Start difference. First operand 451 states and 451 transitions. Second operand has 77 states, 76 states have (on average 5.921052631578948) internal successors, (450), 76 states have internal predecessors, (450), 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) [2021-10-28 23:32:39,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:32:39,154 INFO L93 Difference]: Finished difference Result 459 states and 459 transitions. [2021-10-28 23:32:39,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2021-10-28 23:32:39,155 INFO L78 Accepts]: Start accepts. Automaton has has 77 states, 76 states have (on average 5.921052631578948) internal successors, (450), 76 states have internal predecessors, (450), 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) Word has length 450 [2021-10-28 23:32:39,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:32:39,155 INFO L225 Difference]: With dead ends: 459 [2021-10-28 23:32:39,155 INFO L226 Difference]: Without dead ends: 458 [2021-10-28 23:32:39,156 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 524 GetRequests, 449 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=2926, Invalid=2926, Unknown=0, NotChecked=0, Total=5852 [2021-10-28 23:32:39,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2021-10-28 23:32:39,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 457. [2021-10-28 23:32:39,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 456 states have (on average 1.0021929824561404) internal successors, (457), 456 states have internal predecessors, (457), 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) [2021-10-28 23:32:39,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 457 transitions. [2021-10-28 23:32:39,165 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 457 transitions. Word has length 450 [2021-10-28 23:32:39,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:32:39,165 INFO L470 AbstractCegarLoop]: Abstraction has 457 states and 457 transitions. [2021-10-28 23:32:39,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 77 states, 76 states have (on average 5.921052631578948) internal successors, (450), 76 states have internal predecessors, (450), 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) [2021-10-28 23:32:39,165 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 457 transitions. [2021-10-28 23:32:39,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2021-10-28 23:32:39,167 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:32:39,168 INFO L513 BasicCegarLoop]: trace histogram [76, 75, 75, 51, 51, 51, 25, 25, 25, 1, 1] [2021-10-28 23:32:39,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Forceful destruction successful, exit code 0 [2021-10-28 23:32:39,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 91 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable94 [2021-10-28 23:32:39,372 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:32:39,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:32:39,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1017961519, now seen corresponding path program 38 times [2021-10-28 23:32:39,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:32:39,373 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118308824] [2021-10-28 23:32:39,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:32:39,373 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:32:39,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:32:41,765 INFO L134 CoverageAnalysis]: Checked inductivity of 14475 backedges. 0 proven. 14475 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:32:41,765 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:32:41,765 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118308824] [2021-10-28 23:32:41,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118308824] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:32:41,765 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1381984719] [2021-10-28 23:32:41,766 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:32:41,766 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:32:41,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:41,766 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:32:41,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Waiting until timeout for monitored process [2021-10-28 23:32:47,041 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 23:32:47,041 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:32:47,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 763 conjuncts, 77 conjunts are in the unsatisfiable core [2021-10-28 23:32:47,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:32:48,261 INFO L134 CoverageAnalysis]: Checked inductivity of 14475 backedges. 0 proven. 14475 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:32:48,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1381984719] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:32:48,261 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:32:48,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [76, 76] total 76 [2021-10-28 23:32:48,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491926339] [2021-10-28 23:32:48,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2021-10-28 23:32:48,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:32:48,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2021-10-28 23:32:48,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3003, Invalid=3003, Unknown=0, NotChecked=0, Total=6006 [2021-10-28 23:32:48,264 INFO L87 Difference]: Start difference. First operand 457 states and 457 transitions. Second operand has 78 states, 77 states have (on average 5.922077922077922) internal successors, (456), 77 states have internal predecessors, (456), 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) [2021-10-28 23:32:48,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:32:48,779 INFO L93 Difference]: Finished difference Result 465 states and 465 transitions. [2021-10-28 23:32:48,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-10-28 23:32:48,779 INFO L78 Accepts]: Start accepts. Automaton has has 78 states, 77 states have (on average 5.922077922077922) internal successors, (456), 77 states have internal predecessors, (456), 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) Word has length 456 [2021-10-28 23:32:48,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:32:48,780 INFO L225 Difference]: With dead ends: 465 [2021-10-28 23:32:48,780 INFO L226 Difference]: Without dead ends: 464 [2021-10-28 23:32:48,781 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 531 GetRequests, 455 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=3003, Invalid=3003, Unknown=0, NotChecked=0, Total=6006 [2021-10-28 23:32:48,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2021-10-28 23:32:48,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 463. [2021-10-28 23:32:48,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 462 states have (on average 1.0021645021645023) internal successors, (463), 462 states have internal predecessors, (463), 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) [2021-10-28 23:32:48,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 463 transitions. [2021-10-28 23:32:48,792 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 463 transitions. Word has length 456 [2021-10-28 23:32:48,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:32:48,792 INFO L470 AbstractCegarLoop]: Abstraction has 463 states and 463 transitions. [2021-10-28 23:32:48,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 78 states, 77 states have (on average 5.922077922077922) internal successors, (456), 77 states have internal predecessors, (456), 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) [2021-10-28 23:32:48,793 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 463 transitions. [2021-10-28 23:32:48,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2021-10-28 23:32:48,795 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:32:48,795 INFO L513 BasicCegarLoop]: trace histogram [77, 76, 76, 51, 51, 51, 26, 26, 26, 1, 1] [2021-10-28 23:32:48,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Forceful destruction successful, exit code 0 [2021-10-28 23:32:48,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95,92 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:32:48,996 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:32:48,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:32:48,996 INFO L85 PathProgramCache]: Analyzing trace with hash -932769916, now seen corresponding path program 39 times [2021-10-28 23:32:48,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:32:48,996 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18603872] [2021-10-28 23:32:48,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:32:48,997 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:32:49,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:32:51,477 INFO L134 CoverageAnalysis]: Checked inductivity of 14828 backedges. 0 proven. 14828 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:32:51,477 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:32:51,477 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18603872] [2021-10-28 23:32:51,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18603872] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:32:51,477 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2008907482] [2021-10-28 23:32:51,478 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 23:32:51,478 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:32:51,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:51,478 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:32:51,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Waiting until timeout for monitored process [2021-10-28 23:32:56,918 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 27 check-sat command(s) [2021-10-28 23:32:56,919 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:32:56,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 28 conjunts are in the unsatisfiable core [2021-10-28 23:32:56,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:32:57,918 INFO L134 CoverageAnalysis]: Checked inductivity of 14828 backedges. 5402 proven. 1976 refuted. 0 times theorem prover too weak. 7450 trivial. 0 not checked. [2021-10-28 23:32:57,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2008907482] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:32:57,918 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:32:57,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [77, 28] total 78 [2021-10-28 23:32:57,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171787571] [2021-10-28 23:32:57,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 79 states [2021-10-28 23:32:57,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:32:57,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2021-10-28 23:32:57,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3081, Invalid=3081, Unknown=0, NotChecked=0, Total=6162 [2021-10-28 23:32:57,921 INFO L87 Difference]: Start difference. First operand 463 states and 463 transitions. Second operand has 79 states, 78 states have (on average 6.0256410256410255) internal successors, (470), 79 states have internal predecessors, (470), 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) [2021-10-28 23:32:58,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:32:58,339 INFO L93 Difference]: Finished difference Result 471 states and 471 transitions. [2021-10-28 23:32:58,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-10-28 23:32:58,340 INFO L78 Accepts]: Start accepts. Automaton has has 79 states, 78 states have (on average 6.0256410256410255) internal successors, (470), 79 states have internal predecessors, (470), 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) Word has length 462 [2021-10-28 23:32:58,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:32:58,341 INFO L225 Difference]: With dead ends: 471 [2021-10-28 23:32:58,341 INFO L226 Difference]: Without dead ends: 470 [2021-10-28 23:32:58,341 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 538 GetRequests, 461 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=3081, Invalid=3081, Unknown=0, NotChecked=0, Total=6162 [2021-10-28 23:32:58,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2021-10-28 23:32:58,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 469. [2021-10-28 23:32:58,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 468 states have (on average 1.0021367521367521) internal successors, (469), 468 states have internal predecessors, (469), 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) [2021-10-28 23:32:58,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 469 transitions. [2021-10-28 23:32:58,350 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 469 transitions. Word has length 462 [2021-10-28 23:32:58,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:32:58,350 INFO L470 AbstractCegarLoop]: Abstraction has 469 states and 469 transitions. [2021-10-28 23:32:58,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 79 states, 78 states have (on average 6.0256410256410255) internal successors, (470), 79 states have internal predecessors, (470), 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) [2021-10-28 23:32:58,351 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 469 transitions. [2021-10-28 23:32:58,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2021-10-28 23:32:58,353 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:32:58,353 INFO L513 BasicCegarLoop]: trace histogram [78, 77, 77, 51, 51, 51, 27, 27, 27, 1, 1] [2021-10-28 23:32:58,393 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Ended with exit code 0 [2021-10-28 23:32:58,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96,93 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:32:58,553 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:32:58,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:32:58,554 INFO L85 PathProgramCache]: Analyzing trace with hash -929421065, now seen corresponding path program 40 times [2021-10-28 23:32:58,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:32:58,554 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072295623] [2021-10-28 23:32:58,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:32:58,554 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:32:58,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:33:00,821 INFO L134 CoverageAnalysis]: Checked inductivity of 15187 backedges. 0 proven. 15187 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:33:00,821 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:33:00,821 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072295623] [2021-10-28 23:33:00,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072295623] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:33:00,821 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1663784023] [2021-10-28 23:33:00,821 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 23:33:00,821 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:33:00,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:33:00,822 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:33:00,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Waiting until timeout for monitored process [2021-10-28 23:33:06,613 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 23:33:06,613 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:33:06,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 783 conjuncts, 79 conjunts are in the unsatisfiable core [2021-10-28 23:33:06,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:33:07,876 INFO L134 CoverageAnalysis]: Checked inductivity of 15187 backedges. 0 proven. 15187 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:33:07,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1663784023] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:33:07,877 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:33:07,877 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [78, 78] total 78 [2021-10-28 23:33:07,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394612424] [2021-10-28 23:33:07,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 80 states [2021-10-28 23:33:07,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:33:07,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2021-10-28 23:33:07,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3160, Invalid=3160, Unknown=0, NotChecked=0, Total=6320 [2021-10-28 23:33:07,879 INFO L87 Difference]: Start difference. First operand 469 states and 469 transitions. Second operand has 80 states, 79 states have (on average 5.924050632911392) internal successors, (468), 79 states have internal predecessors, (468), 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) [2021-10-28 23:33:08,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:33:08,278 INFO L93 Difference]: Finished difference Result 477 states and 477 transitions. [2021-10-28 23:33:08,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-10-28 23:33:08,278 INFO L78 Accepts]: Start accepts. Automaton has has 80 states, 79 states have (on average 5.924050632911392) internal successors, (468), 79 states have internal predecessors, (468), 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) Word has length 468 [2021-10-28 23:33:08,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:33:08,279 INFO L225 Difference]: With dead ends: 477 [2021-10-28 23:33:08,279 INFO L226 Difference]: Without dead ends: 476 [2021-10-28 23:33:08,280 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 545 GetRequests, 467 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=3160, Invalid=3160, Unknown=0, NotChecked=0, Total=6320 [2021-10-28 23:33:08,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2021-10-28 23:33:08,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 475. [2021-10-28 23:33:08,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 474 states have (on average 1.0021097046413503) internal successors, (475), 474 states have internal predecessors, (475), 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) [2021-10-28 23:33:08,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 475 transitions. [2021-10-28 23:33:08,289 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 475 transitions. Word has length 468 [2021-10-28 23:33:08,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:33:08,289 INFO L470 AbstractCegarLoop]: Abstraction has 475 states and 475 transitions. [2021-10-28 23:33:08,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 80 states, 79 states have (on average 5.924050632911392) internal successors, (468), 79 states have internal predecessors, (468), 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) [2021-10-28 23:33:08,289 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 475 transitions. [2021-10-28 23:33:08,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2021-10-28 23:33:08,291 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:33:08,292 INFO L513 BasicCegarLoop]: trace histogram [79, 78, 78, 51, 51, 51, 28, 28, 28, 1, 1] [2021-10-28 23:33:08,332 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Forceful destruction successful, exit code 0 [2021-10-28 23:33:08,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 94 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable97 [2021-10-28 23:33:08,492 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:33:08,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:33:08,493 INFO L85 PathProgramCache]: Analyzing trace with hash -708632534, now seen corresponding path program 41 times [2021-10-28 23:33:08,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:33:08,493 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71172469] [2021-10-28 23:33:08,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:33:08,493 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:33:08,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:33:11,000 INFO L134 CoverageAnalysis]: Checked inductivity of 15552 backedges. 0 proven. 15552 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:33:11,000 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:33:11,000 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71172469] [2021-10-28 23:33:11,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71172469] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:33:11,000 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1576842728] [2021-10-28 23:33:11,000 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 23:33:11,000 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:33:11,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:33:11,003 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:33:11,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Waiting until timeout for monitored process [2021-10-28 23:33:16,753 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 53 check-sat command(s) [2021-10-28 23:33:16,753 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:33:16,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 793 conjuncts, 72 conjunts are in the unsatisfiable core [2021-10-28 23:33:16,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:33:20,565 INFO L134 CoverageAnalysis]: Checked inductivity of 15552 backedges. 3076 proven. 12292 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2021-10-28 23:33:20,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1576842728] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:33:20,565 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:33:20,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [79, 72] total 122 [2021-10-28 23:33:20,566 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851062019] [2021-10-28 23:33:20,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 123 states [2021-10-28 23:33:20,566 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:33:20,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 123 interpolants. [2021-10-28 23:33:20,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7503, Invalid=7503, Unknown=0, NotChecked=0, Total=15006 [2021-10-28 23:33:20,569 INFO L87 Difference]: Start difference. First operand 475 states and 475 transitions. Second operand has 123 states, 122 states have (on average 6.713114754098361) internal successors, (819), 123 states have internal predecessors, (819), 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) [2021-10-28 23:33:21,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:33:21,382 INFO L93 Difference]: Finished difference Result 735 states and 777 transitions. [2021-10-28 23:33:21,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2021-10-28 23:33:21,382 INFO L78 Accepts]: Start accepts. Automaton has has 123 states, 122 states have (on average 6.713114754098361) internal successors, (819), 123 states have internal predecessors, (819), 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) Word has length 474 [2021-10-28 23:33:21,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:33:21,383 INFO L225 Difference]: With dead ends: 735 [2021-10-28 23:33:21,383 INFO L226 Difference]: Without dead ends: 734 [2021-10-28 23:33:21,385 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 552 GetRequests, 431 SyntacticMatches, 0 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=7503, Invalid=7503, Unknown=0, NotChecked=0, Total=15006 [2021-10-28 23:33:21,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2021-10-28 23:33:21,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 733. [2021-10-28 23:33:21,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 733 states, 732 states have (on average 1.0013661202185793) internal successors, (733), 732 states have internal predecessors, (733), 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) [2021-10-28 23:33:21,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 733 transitions. [2021-10-28 23:33:21,404 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 733 transitions. Word has length 474 [2021-10-28 23:33:21,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:33:21,405 INFO L470 AbstractCegarLoop]: Abstraction has 733 states and 733 transitions. [2021-10-28 23:33:21,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 123 states, 122 states have (on average 6.713114754098361) internal successors, (819), 123 states have internal predecessors, (819), 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) [2021-10-28 23:33:21,405 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 733 transitions. [2021-10-28 23:33:21,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 733 [2021-10-28 23:33:21,410 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:33:21,410 INFO L513 BasicCegarLoop]: trace histogram [122, 121, 121, 71, 71, 71, 51, 51, 51, 1, 1] [2021-10-28 23:33:21,451 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Forceful destruction successful, exit code 0 [2021-10-28 23:33:21,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 95 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable98 [2021-10-28 23:33:21,612 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 23:33:21,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:33:21,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1229081285, now seen corresponding path program 42 times [2021-10-28 23:33:21,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:33:21,613 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217567261] [2021-10-28 23:33:21,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:33:21,613 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:33:21,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:33:26,981 INFO L134 CoverageAnalysis]: Checked inductivity of 36923 backedges. 0 proven. 36923 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:33:26,981 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:33:26,981 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217567261] [2021-10-28 23:33:26,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217567261] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:33:26,982 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [476585057] [2021-10-28 23:33:26,982 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-28 23:33:26,982 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:33:26,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:33:26,983 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:33:26,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Waiting until timeout for monitored process [2021-10-28 23:33:32,834 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 72 check-sat command(s) [2021-10-28 23:33:32,834 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:33:32,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 1223 conjuncts, 123 conjunts are in the unsatisfiable core [2021-10-28 23:33:32,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:33:39,065 INFO L134 CoverageAnalysis]: Checked inductivity of 36923 backedges. 23969 proven. 12752 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2021-10-28 23:33:39,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [476585057] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:33:39,065 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:33:39,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [122, 72] total 194 [2021-10-28 23:33:39,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613781273] [2021-10-28 23:33:39,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 195 states [2021-10-28 23:33:39,068 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:33:39,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 195 interpolants. [2021-10-28 23:33:39,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10253, Invalid=27577, Unknown=0, NotChecked=0, Total=37830 [2021-10-28 23:33:39,073 INFO L87 Difference]: Start difference. First operand 733 states and 733 transitions. Second operand has 195 states, 195 states have (on average 6.733333333333333) internal successors, (1313), 194 states have internal predecessors, (1313), 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) [2021-10-28 23:33:54,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:33:54,244 INFO L93 Difference]: Finished difference Result 733 states and 733 transitions. [2021-10-28 23:33:54,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 209 states. [2021-10-28 23:33:54,245 INFO L78 Accepts]: Start accepts. Automaton has has 195 states, 195 states have (on average 6.733333333333333) internal successors, (1313), 194 states have internal predecessors, (1313), 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) Word has length 732 [2021-10-28 23:33:54,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:33:54,246 INFO L225 Difference]: With dead ends: 733 [2021-10-28 23:33:54,247 INFO L226 Difference]: Without dead ends: 0 [2021-10-28 23:33:54,263 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1060 GetRequests, 660 SyntacticMatches, 0 SemanticMatches, 400 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35724 ImplicationChecksByTransitivity, 21.2s TimeCoverageRelationStatistics Valid=41435, Invalid=119767, Unknown=0, NotChecked=0, Total=161202 [2021-10-28 23:33:54,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-28 23:33:54,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-28 23:33:54,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-10-28 23:33:54,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 23:33:54,263 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 732 [2021-10-28 23:33:54,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:33:54,263 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:33:54,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 195 states, 195 states have (on average 6.733333333333333) internal successors, (1313), 194 states have internal predecessors, (1313), 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) [2021-10-28 23:33:54,265 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-28 23:33:54,265 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-28 23:33:54,268 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 23:33:54,269 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 23:33:54,269 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 23:33:54,269 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 23:33:54,269 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 23:33:54,269 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 23:33:54,321 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Ended with exit code 0 [2021-10-28 23:33:54,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 96 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable99 [2021-10-28 23:33:54,480 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-28 23:33:54,490 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:33:55,663 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:33:59,457 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2021-10-28 23:33:59,457 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-28 23:33:59,458 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2021-10-28 23:33:59,458 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2021-10-28 23:33:59,458 INFO L857 garLoopResultBuilder]: For program point L19(lines 19 23) no Hoare annotation was computed. [2021-10-28 23:33:59,458 INFO L857 garLoopResultBuilder]: For program point L19-2(lines 19 23) no Hoare annotation was computed. [2021-10-28 23:33:59,459 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2021-10-28 23:33:59,459 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2021-10-28 23:33:59,459 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-28 23:33:59,459 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2021-10-28 23:33:59,459 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-28 23:33:59,460 INFO L860 garLoopResultBuilder]: At program point L26(lines 14 27) the Hoare annotation is: true [2021-10-28 23:33:59,460 INFO L857 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2021-10-28 23:33:59,460 INFO L857 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2021-10-28 23:33:59,460 INFO L857 garLoopResultBuilder]: For program point L22-1(line 22) no Hoare annotation was computed. [2021-10-28 23:33:59,460 INFO L857 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2021-10-28 23:33:59,461 INFO L857 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2021-10-28 23:33:59,462 INFO L853 garLoopResultBuilder]: At program point L18-2(lines 18 25) the Hoare annotation is: (let ((.cse7 (<= ULTIMATE.start_main_~y~0 21)) (.cse4 (<= ULTIMATE.start_main_~y~0 32)) (.cse28 (<= ULTIMATE.start_main_~y~0 15)) (.cse36 (<= ULTIMATE.start_main_~y~0 8)) (.cse34 (<= ULTIMATE.start_main_~y~0 42)) (.cse37 (<= ULTIMATE.start_main_~y~0 40)) (.cse21 (<= ULTIMATE.start_main_~y~0 46)) (.cse12 (<= ULTIMATE.start_main_~y~0 7)) (.cse31 (<= ULTIMATE.start_main_~y~0 43)) (.cse27 (<= ULTIMATE.start_main_~y~0 20)) (.cse10 (<= ULTIMATE.start_main_~y~0 31)) (.cse35 (<= ULTIMATE.start_main_~y~0 36)) (.cse18 (<= ULTIMATE.start_main_~y~0 28)) (.cse40 (<= ULTIMATE.start_main_~y~0 18)) (.cse8 (<= ULTIMATE.start_main_~y~0 45)) (.cse17 (<= ULTIMATE.start_main_~y~0 10)) (.cse30 (<= ULTIMATE.start_main_~y~0 22)) (.cse43 (<= ULTIMATE.start_main_~y~0 3)) (.cse44 (<= ULTIMATE.start_main_~y~0 23)) (.cse6 (<= ULTIMATE.start_main_~y~0 27)) (.cse19 (<= ULTIMATE.start_main_~y~0 0)) (.cse45 (<= ULTIMATE.start_main_~y~0 26)) (.cse0 (<= ULTIMATE.start_main_~y~0 9)) (.cse15 (<= ULTIMATE.start_main_~y~0 24)) (.cse16 (<= ULTIMATE.start_main_~y~0 17)) (.cse9 (<= ULTIMATE.start_main_~y~0 30)) (.cse20 (<= ULTIMATE.start_main_~y~0 13)) (.cse14 (<= ULTIMATE.start_main_~y~0 37)) (.cse29 (<= ULTIMATE.start_main_~y~0 33)) (.cse39 (<= ULTIMATE.start_main_~y~0 38)) (.cse42 (<= ULTIMATE.start_main_~y~0 44)) (.cse41 (<= ULTIMATE.start_main_~y~0 14)) (.cse33 (<= ULTIMATE.start_main_~y~0 4)) (.cse11 (<= ULTIMATE.start_main_~y~0 11)) (.cse46 (<= ULTIMATE.start_main_~y~0 48)) (.cse32 (<= ULTIMATE.start_main_~y~0 39)) (.cse38 (<= ULTIMATE.start_main_~y~0 19)) (.cse13 (<= ULTIMATE.start_main_~y~0 6)) (.cse26 (<= ULTIMATE.start_main_~y~0 2)) (.cse47 (<= ULTIMATE.start_main_~y~0 1)) (.cse22 (<= ULTIMATE.start_main_~y~0 25)) (.cse48 (<= ULTIMATE.start_main_~y~0 12)) (.cse23 (<= ULTIMATE.start_main_~y~0 41)) (.cse50 (<= ULTIMATE.start_main_~y~0 50)) (.cse51 (<= ULTIMATE.start_main_~y~0 29)) (.cse49 (<= ULTIMATE.start_main_~y~0 5)) (.cse2 (<= ULTIMATE.start_main_~y~0 49)) (.cse5 (<= ULTIMATE.start_main_~y~0 34)) (.cse25 (<= ULTIMATE.start_main_~y~0 35)) (.cse3 (<= 51 ULTIMATE.start_main_~x~0)) (.cse52 (<= ULTIMATE.start_main_~y~0 16)) (.cse24 (<= ULTIMATE.start_main_~y~0 47)) (.cse1 (<= ULTIMATE.start_main_~x~0 51))) (or (and .cse0 .cse1 (<= 9 ULTIMATE.start_main_~x~0)) (and .cse2 (<= ULTIMATE.start_main_~x~0 53) .cse3) (and (<= 32 ULTIMATE.start_main_~x~0) .cse1 .cse4) (and .cse5 .cse6 .cse3 (<= ULTIMATE.start_main_~x~0 75)) (and .cse5 .cse7 (<= ULTIMATE.start_main_~x~0 81) .cse3) (and .cse8 (<= ULTIMATE.start_main_~x~0 57) .cse3) (and (<= 30 ULTIMATE.start_main_~x~0) .cse9 .cse1) (and (<= 21 ULTIMATE.start_main_~x~0) .cse7 .cse1) (and (<= 31 ULTIMATE.start_main_~x~0) .cse10 .cse1) (and (<= ULTIMATE.start_main_~x~0 91) .cse5 .cse3 .cse11) (and .cse12 .cse1 (<= 7 ULTIMATE.start_main_~x~0)) (and .cse13 .cse5 (<= ULTIMATE.start_main_~x~0 96) .cse3) (and .cse14 (<= 37 ULTIMATE.start_main_~x~0) .cse1) (and .cse15 .cse5 (<= ULTIMATE.start_main_~x~0 78) .cse3) (and .cse5 (<= ULTIMATE.start_main_~x~0 70) .cse3 .cse4) (and .cse16 (<= ULTIMATE.start_main_~x~0 85) .cse5 .cse3) (and .cse5 (<= ULTIMATE.start_main_~x~0 92) .cse3 .cse17) (and .cse5 (<= ULTIMATE.start_main_~x~0 74) .cse3 .cse18) (and .cse5 (<= (+ ULTIMATE.start_main_~y~0 1) 0) (<= ULTIMATE.start_main_~x~0 103) .cse3) (and .cse5 .cse19 .cse3 (<= ULTIMATE.start_main_~x~0 102)) (and .cse20 .cse5 .cse3 (<= ULTIMATE.start_main_~x~0 89)) (and .cse21 (<= 46 ULTIMATE.start_main_~x~0) .cse1) (and (<= 25 ULTIMATE.start_main_~x~0) .cse22 (<= ULTIMATE.start_main_~x~0 25)) (and (<= 41 ULTIMATE.start_main_~x~0) .cse23 .cse1) (and (<= ULTIMATE.start_main_~x~0 55) .cse24 .cse3) (and .cse25 (<= 35 ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~x~0 35)) (and .cse5 .cse26 .cse3 (<= ULTIMATE.start_main_~x~0 100)) (and (<= 20 ULTIMATE.start_main_~x~0) .cse27 .cse1) (and .cse28 .cse5 (<= ULTIMATE.start_main_~x~0 87) .cse3) (and .cse5 (<= 34 ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~x~0 34)) (and .cse5 .cse29 (<= ULTIMATE.start_main_~x~0 69) .cse3) (and (<= ULTIMATE.start_main_~x~0 80) .cse5 .cse30 .cse3) (and .cse31 .cse1 (<= 43 ULTIMATE.start_main_~x~0)) (and .cse28 (<= 15 ULTIMATE.start_main_~x~0) .cse1) (and (<= ULTIMATE.start_main_~x~0 63) .cse32 .cse3) (and (<= 4 ULTIMATE.start_main_~x~0) .cse33 .cse1) (and .cse34 .cse1 (<= 42 ULTIMATE.start_main_~x~0)) (and .cse35 .cse1 (<= 36 ULTIMATE.start_main_~x~0)) (and .cse5 (<= ULTIMATE.start_main_~x~0 94) .cse3 .cse36) (and (<= 8 ULTIMATE.start_main_~x~0) .cse1 .cse36) (and .cse37 (<= ULTIMATE.start_main_~x~0 62) .cse3) (and .cse34 (<= ULTIMATE.start_main_~x~0 60) .cse3) (and .cse37 (<= ULTIMATE.start_main_~x~0 40) (<= 40 ULTIMATE.start_main_~x~0)) (and .cse21 (<= ULTIMATE.start_main_~x~0 56) .cse3) (and .cse5 (<= ULTIMATE.start_main_~x~0 83) .cse3 .cse38) (and .cse5 .cse3 (<= ULTIMATE.start_main_~x~0 68)) (and (<= ULTIMATE.start_main_~x~0 64) .cse39 .cse3) (and (<= 18 ULTIMATE.start_main_~x~0) .cse40 .cse1) (and .cse41 .cse1 (<= 14 ULTIMATE.start_main_~x~0)) (and .cse5 .cse12 .cse3 (<= ULTIMATE.start_main_~x~0 95)) (and .cse31 (<= ULTIMATE.start_main_~x~0 59) .cse3) (and (<= ULTIMATE.start_main_~x~0 82) .cse5 .cse27 .cse3) (and .cse5 .cse10 (<= ULTIMATE.start_main_~x~0 71) .cse3) (and (<= ULTIMATE.start_main_~x~0 66) .cse35 .cse3) (and .cse42 (<= 44 ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~x~0 44)) (and (<= ULTIMATE.start_main_~x~0 99) .cse5 .cse43 .cse3) (and (<= 28 ULTIMATE.start_main_~x~0) .cse1 .cse18) (and .cse5 .cse44 .cse3 (<= ULTIMATE.start_main_~x~0 79)) (and .cse5 .cse40 .cse3 (<= ULTIMATE.start_main_~x~0 84)) (and .cse8 (<= 45 ULTIMATE.start_main_~x~0) .cse1) (and (<= 10 ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~x~0 10) .cse17) (and .cse30 (<= 22 ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~x~0 22)) (and .cse5 .cse3 (<= ULTIMATE.start_main_~x~0 76) .cse45) (and .cse3 (<= ULTIMATE.start_main_~x~0 54) .cse46) (and (<= ULTIMATE.start_main_~x~0 3) .cse43 (<= 3 ULTIMATE.start_main_~x~0)) (and (<= 23 ULTIMATE.start_main_~x~0) .cse44 .cse1) (and (<= ULTIMATE.start_main_~x~0 1) (<= 1 ULTIMATE.start_main_~x~0) .cse47) (and .cse48 .cse1 (<= 12 ULTIMATE.start_main_~x~0)) (and .cse6 (<= 27 ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~x~0 27)) (and (<= ULTIMATE.start_main_~x~0 0) .cse19 (<= 0 ULTIMATE.start_main_~y~0) (<= 0 ULTIMATE.start_main_~x~0)) (and (<= 26 ULTIMATE.start_main_~x~0) .cse1 .cse45) (and .cse1 .cse3 (<= ULTIMATE.start_main_~y~0 51)) (and .cse5 (<= ULTIMATE.start_main_~x~0 93) .cse0 .cse3) (and .cse15 (<= 24 ULTIMATE.start_main_~x~0) .cse1) (and .cse16 (<= 17 ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~x~0 17)) (and .cse5 .cse9 (<= ULTIMATE.start_main_~x~0 72) .cse3) (and .cse20 (<= 13 ULTIMATE.start_main_~x~0) .cse1) (and .cse14 (<= ULTIMATE.start_main_~x~0 65) .cse3) (and .cse29 (<= 33 ULTIMATE.start_main_~x~0) .cse1) (and (<= 38 ULTIMATE.start_main_~x~0) .cse1 .cse39) (and .cse42 .cse3 (<= ULTIMATE.start_main_~x~0 58)) (and .cse5 .cse41 (<= ULTIMATE.start_main_~x~0 88) .cse3) (and .cse5 .cse33 (<= ULTIMATE.start_main_~x~0 98) .cse3) (and (<= 11 ULTIMATE.start_main_~x~0) .cse1 .cse11) (and (<= 48 ULTIMATE.start_main_~x~0) .cse1 .cse46) (and (<= 39 ULTIMATE.start_main_~x~0) .cse32 .cse1) (and .cse5 .cse49 (<= ULTIMATE.start_main_~x~0 97) .cse3) (and (<= 19 ULTIMATE.start_main_~x~0) .cse1 .cse38) (and .cse13 (<= 6 ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~x~0 6)) (and (<= 2 ULTIMATE.start_main_~x~0) .cse26 (<= ULTIMATE.start_main_~x~0 2)) (and .cse5 (<= ULTIMATE.start_main_~x~0 101) .cse3 .cse47) (and .cse5 .cse22 .cse3 (<= ULTIMATE.start_main_~x~0 77)) (and .cse5 .cse48 (<= ULTIMATE.start_main_~x~0 90) .cse3) (and .cse23 (<= ULTIMATE.start_main_~x~0 61) .cse3) (and (<= ULTIMATE.start_main_~x~0 52) .cse50 .cse3) (and .cse1 .cse50 (<= 50 ULTIMATE.start_main_~x~0)) (and .cse51 (<= 29 ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~x~0 29)) (and .cse5 (<= ULTIMATE.start_main_~x~0 73) .cse51 .cse3) (and (<= 5 ULTIMATE.start_main_~x~0) .cse49 .cse1) (and .cse2 (<= 49 ULTIMATE.start_main_~x~0) .cse1) (and .cse5 .cse52 .cse3 (<= ULTIMATE.start_main_~x~0 86)) (and .cse25 .cse3 (<= ULTIMATE.start_main_~x~0 67)) (and .cse52 (<= 16 ULTIMATE.start_main_~x~0) .cse1) (and (<= 47 ULTIMATE.start_main_~x~0) .cse24 .cse1))) [2021-10-28 23:33:59,463 INFO L857 garLoopResultBuilder]: For program point L18-3(lines 18 25) no Hoare annotation was computed. [2021-10-28 23:33:59,467 INFO L731 BasicCegarLoop]: Path program histogram: [52, 42, 2, 1, 1, 1, 1] [2021-10-28 23:33:59,469 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:33:59,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:33:59 BoogieIcfgContainer [2021-10-28 23:33:59,537 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:33:59,538 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:33:59,538 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:33:59,538 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:33:59,539 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:26:54" (3/4) ... [2021-10-28 23:33:59,542 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 23:33:59,554 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-28 23:33:59,555 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-28 23:33:59,607 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:33:59,607 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:33:59,609 INFO L168 Benchmark]: Toolchain (without parser) took 426106.74 ms. Allocated memory was 130.0 MB in the beginning and 3.3 GB in the end (delta: 3.1 GB). Free memory was 89.9 MB in the beginning and 1.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 1.6 GB. Max. memory is 16.1 GB. [2021-10-28 23:33:59,610 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 130.0 MB. Free memory was 105.8 MB in the beginning and 105.8 MB in the end (delta: 70.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:33:59,611 INFO L168 Benchmark]: CACSL2BoogieTranslator took 333.98 ms. Allocated memory is still 130.0 MB. Free memory was 89.7 MB in the beginning and 104.8 MB in the end (delta: -15.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:33:59,612 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.35 ms. Allocated memory is still 130.0 MB. Free memory was 104.8 MB in the beginning and 103.6 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:33:59,612 INFO L168 Benchmark]: Boogie Preprocessor took 20.92 ms. Allocated memory is still 130.0 MB. Free memory was 103.6 MB in the beginning and 102.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:33:59,613 INFO L168 Benchmark]: RCFGBuilder took 389.77 ms. Allocated memory is still 130.0 MB. Free memory was 102.5 MB in the beginning and 94.1 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:33:59,613 INFO L168 Benchmark]: TraceAbstraction took 425240.93 ms. Allocated memory was 130.0 MB in the beginning and 3.3 GB in the end (delta: 3.1 GB). Free memory was 93.7 MB in the beginning and 1.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 2.0 GB. Max. memory is 16.1 GB. [2021-10-28 23:33:59,613 INFO L168 Benchmark]: Witness Printer took 69.87 ms. Allocated memory is still 3.3 GB. Free memory was 1.6 GB in the beginning and 1.6 GB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:33:59,616 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 130.0 MB. Free memory was 105.8 MB in the beginning and 105.8 MB in the end (delta: 70.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 333.98 ms. Allocated memory is still 130.0 MB. Free memory was 89.7 MB in the beginning and 104.8 MB in the end (delta: -15.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.35 ms. Allocated memory is still 130.0 MB. Free memory was 104.8 MB in the beginning and 103.6 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.92 ms. Allocated memory is still 130.0 MB. Free memory was 103.6 MB in the beginning and 102.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 389.77 ms. Allocated memory is still 130.0 MB. Free memory was 102.5 MB in the beginning and 94.1 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 425240.93 ms. Allocated memory was 130.0 MB in the beginning and 3.3 GB in the end (delta: 3.1 GB). Free memory was 93.7 MB in the beginning and 1.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 2.0 GB. Max. memory is 16.1 GB. * Witness Printer took 69.87 ms. Allocated memory is still 3.3 GB. Free memory was 1.6 GB in the beginning and 1.6 GB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 425.0s, OverallIterations: 100, TraceHistogramMax: 122, PathProgramHistogramMax: 52, EmptinessCheckTime: 0.2s, AutomataDifference: 40.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.9s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 2623 SDtfs, 18154 SDslu, 15422 SDs, 0 SdLazy, 22487 SolverSat, 3085 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22995 GetRequests, 19491 SyntacticMatches, 0 SemanticMatches, 3504 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38491 ImplicationChecksByTransitivity, 81.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5250occurred in iteration=84, InterpolantAutomatonStates: 3454, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.7s AutomataMinimizationTime, 100 MinimizatonAttempts, 86750 StatesRemovedByMinimization, 91 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 108 NumberOfFragments, 1152 HoareAnnotationTreeSize, 2 FomulaSimplifications, 3200 FormulaSimplificationTreeSizeReduction, 1.1s HoareSimplificationTime, 2 FomulaSimplificationsInter, 16785 FormulaSimplificationTreeSizeReductionInter, 3.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 6.3s SatisfiabilityAnalysisTime, 136.2s InterpolantComputationTime, 39784 NumberOfCodeBlocks, 38866 NumberOfCodeBlocksAsserted, 1451 NumberOfCheckSat, 39589 ConstructedInterpolants, 0 QuantifiedInterpolants, 106837 SizeOfPredicates, 0 NumberOfNonLiveVariables, 31843 ConjunctsInSsa, 2818 ConjunctsInUnsatCore, 195 InterpolantComputations, 6 PerfectInterpolantSequences, 213114/851854 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 - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((y <= 9 && x <= 51) && 9 <= x) || ((y <= 49 && x <= 53) && 51 <= x)) || ((32 <= x && x <= 51) && y <= 32)) || (((y <= 34 && y <= 27) && 51 <= x) && x <= 75)) || (((y <= 34 && y <= 21) && x <= 81) && 51 <= x)) || ((y <= 45 && x <= 57) && 51 <= x)) || ((30 <= x && y <= 30) && x <= 51)) || ((21 <= x && y <= 21) && x <= 51)) || ((31 <= x && y <= 31) && x <= 51)) || (((x <= 91 && y <= 34) && 51 <= x) && y <= 11)) || ((y <= 7 && x <= 51) && 7 <= x)) || (((y <= 6 && y <= 34) && x <= 96) && 51 <= x)) || ((y <= 37 && 37 <= x) && x <= 51)) || (((y <= 24 && y <= 34) && x <= 78) && 51 <= x)) || (((y <= 34 && x <= 70) && 51 <= x) && y <= 32)) || (((y <= 17 && x <= 85) && y <= 34) && 51 <= x)) || (((y <= 34 && x <= 92) && 51 <= x) && y <= 10)) || (((y <= 34 && x <= 74) && 51 <= x) && y <= 28)) || (((y <= 34 && y + 1 <= 0) && x <= 103) && 51 <= x)) || (((y <= 34 && y <= 0) && 51 <= x) && x <= 102)) || (((y <= 13 && y <= 34) && 51 <= x) && x <= 89)) || ((y <= 46 && 46 <= x) && x <= 51)) || ((25 <= x && y <= 25) && x <= 25)) || ((41 <= x && y <= 41) && x <= 51)) || ((x <= 55 && y <= 47) && 51 <= x)) || ((y <= 35 && 35 <= x) && x <= 35)) || (((y <= 34 && y <= 2) && 51 <= x) && x <= 100)) || ((20 <= x && y <= 20) && x <= 51)) || (((y <= 15 && y <= 34) && x <= 87) && 51 <= x)) || ((y <= 34 && 34 <= x) && x <= 34)) || (((y <= 34 && y <= 33) && x <= 69) && 51 <= x)) || (((x <= 80 && y <= 34) && y <= 22) && 51 <= x)) || ((y <= 43 && x <= 51) && 43 <= x)) || ((y <= 15 && 15 <= x) && x <= 51)) || ((x <= 63 && y <= 39) && 51 <= x)) || ((4 <= x && y <= 4) && x <= 51)) || ((y <= 42 && x <= 51) && 42 <= x)) || ((y <= 36 && x <= 51) && 36 <= x)) || (((y <= 34 && x <= 94) && 51 <= x) && y <= 8)) || ((8 <= x && x <= 51) && y <= 8)) || ((y <= 40 && x <= 62) && 51 <= x)) || ((y <= 42 && x <= 60) && 51 <= x)) || ((y <= 40 && x <= 40) && 40 <= x)) || ((y <= 46 && x <= 56) && 51 <= x)) || (((y <= 34 && x <= 83) && 51 <= x) && y <= 19)) || ((y <= 34 && 51 <= x) && x <= 68)) || ((x <= 64 && y <= 38) && 51 <= x)) || ((18 <= x && y <= 18) && x <= 51)) || ((y <= 14 && x <= 51) && 14 <= x)) || (((y <= 34 && y <= 7) && 51 <= x) && x <= 95)) || ((y <= 43 && x <= 59) && 51 <= x)) || (((x <= 82 && y <= 34) && y <= 20) && 51 <= x)) || (((y <= 34 && y <= 31) && x <= 71) && 51 <= x)) || ((x <= 66 && y <= 36) && 51 <= x)) || ((y <= 44 && 44 <= x) && x <= 44)) || (((x <= 99 && y <= 34) && y <= 3) && 51 <= x)) || ((28 <= x && x <= 51) && y <= 28)) || (((y <= 34 && y <= 23) && 51 <= x) && x <= 79)) || (((y <= 34 && y <= 18) && 51 <= x) && x <= 84)) || ((y <= 45 && 45 <= x) && x <= 51)) || ((10 <= x && x <= 10) && y <= 10)) || ((y <= 22 && 22 <= x) && x <= 22)) || (((y <= 34 && 51 <= x) && x <= 76) && y <= 26)) || ((51 <= x && x <= 54) && y <= 48)) || ((x <= 3 && y <= 3) && 3 <= x)) || ((23 <= x && y <= 23) && x <= 51)) || ((x <= 1 && 1 <= x) && y <= 1)) || ((y <= 12 && x <= 51) && 12 <= x)) || ((y <= 27 && 27 <= x) && x <= 27)) || (((x <= 0 && y <= 0) && 0 <= y) && 0 <= x)) || ((26 <= x && x <= 51) && y <= 26)) || ((x <= 51 && 51 <= x) && y <= 51)) || (((y <= 34 && x <= 93) && y <= 9) && 51 <= x)) || ((y <= 24 && 24 <= x) && x <= 51)) || ((y <= 17 && 17 <= x) && x <= 17)) || (((y <= 34 && y <= 30) && x <= 72) && 51 <= x)) || ((y <= 13 && 13 <= x) && x <= 51)) || ((y <= 37 && x <= 65) && 51 <= x)) || ((y <= 33 && 33 <= x) && x <= 51)) || ((38 <= x && x <= 51) && y <= 38)) || ((y <= 44 && 51 <= x) && x <= 58)) || (((y <= 34 && y <= 14) && x <= 88) && 51 <= x)) || (((y <= 34 && y <= 4) && x <= 98) && 51 <= x)) || ((11 <= x && x <= 51) && y <= 11)) || ((48 <= x && x <= 51) && y <= 48)) || ((39 <= x && y <= 39) && x <= 51)) || (((y <= 34 && y <= 5) && x <= 97) && 51 <= x)) || ((19 <= x && x <= 51) && y <= 19)) || ((y <= 6 && 6 <= x) && x <= 6)) || ((2 <= x && y <= 2) && x <= 2)) || (((y <= 34 && x <= 101) && 51 <= x) && y <= 1)) || (((y <= 34 && y <= 25) && 51 <= x) && x <= 77)) || (((y <= 34 && y <= 12) && x <= 90) && 51 <= x)) || ((y <= 41 && x <= 61) && 51 <= x)) || ((x <= 52 && y <= 50) && 51 <= x)) || ((x <= 51 && y <= 50) && 50 <= x)) || ((y <= 29 && 29 <= x) && x <= 29)) || (((y <= 34 && x <= 73) && y <= 29) && 51 <= x)) || ((5 <= x && y <= 5) && x <= 51)) || ((y <= 49 && 49 <= x) && x <= 51)) || (((y <= 34 && y <= 16) && 51 <= x) && x <= 86)) || ((y <= 35 && 51 <= x) && x <= 67)) || ((y <= 16 && 16 <= x) && x <= 51)) || ((47 <= x && y <= 47) && x <= 51) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-28 23:33:59,735 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881eb2e1-4c62-40ff-b726-0fa31be54fd5/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...