./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-numeric/twisted.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-numeric/twisted.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS --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 1b68c797f7da07f29717590596e5fa31674f85e16d7b32a9335da92aff43a272 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 03:35:25,677 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 03:35:25,680 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 03:35:25,732 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 03:35:25,732 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 03:35:25,737 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 03:35:25,739 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 03:35:25,745 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 03:35:25,748 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 03:35:25,750 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 03:35:25,752 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 03:35:25,756 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 03:35:25,756 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 03:35:25,763 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 03:35:25,765 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 03:35:25,767 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 03:35:25,769 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 03:35:25,772 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 03:35:25,774 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 03:35:25,777 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 03:35:25,782 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 03:35:25,783 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 03:35:25,787 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 03:35:25,788 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 03:35:25,795 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 03:35:25,801 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 03:35:25,802 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 03:35:25,803 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 03:35:25,805 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 03:35:25,806 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 03:35:25,808 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 03:35:25,809 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 03:35:25,811 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 03:35:25,813 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 03:35:25,814 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 03:35:25,815 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 03:35:25,816 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 03:35:25,816 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 03:35:25,816 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 03:35:25,819 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 03:35:25,820 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 03:35:25,821 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-23 03:35:25,861 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 03:35:25,861 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 03:35:25,862 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 03:35:25,862 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 03:35:25,863 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 03:35:25,863 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 03:35:25,864 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 03:35:25,864 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 03:35:25,864 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 03:35:25,865 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 03:35:25,865 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 03:35:25,865 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 03:35:25,865 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 03:35:25,865 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 03:35:25,866 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 03:35:25,866 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 03:35:25,866 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 03:35:25,866 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 03:35:25,867 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 03:35:25,867 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 03:35:25,867 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 03:35:25,867 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 03:35:25,868 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 03:35:25,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:35:25,868 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 03:35:25,868 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 03:35:25,869 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 03:35:25,869 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 03:35:25,870 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 03:35:25,870 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 03:35:25,870 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 03:35:25,871 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 03:35:25,871 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 03:35:25,871 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b68c797f7da07f29717590596e5fa31674f85e16d7b32a9335da92aff43a272 [2022-11-23 03:35:26,244 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 03:35:26,270 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 03:35:26,274 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 03:35:26,275 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 03:35:26,276 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 03:35:26,278 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/termination-numeric/twisted.c [2022-11-23 03:35:29,799 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 03:35:30,009 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 03:35:30,010 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/sv-benchmarks/c/termination-numeric/twisted.c [2022-11-23 03:35:30,020 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/data/898cf7490/e8418b1f3ef140f7af4c67d2d5318089/FLAGbd266b3e5 [2022-11-23 03:35:30,044 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/data/898cf7490/e8418b1f3ef140f7af4c67d2d5318089 [2022-11-23 03:35:30,051 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 03:35:30,056 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 03:35:30,059 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 03:35:30,060 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 03:35:30,064 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 03:35:30,065 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:35:30" (1/1) ... [2022-11-23 03:35:30,067 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bebd09d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:30, skipping insertion in model container [2022-11-23 03:35:30,067 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:35:30" (1/1) ... [2022-11-23 03:35:30,077 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 03:35:30,103 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 03:35:30,344 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:35:30,351 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 03:35:30,373 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:35:30,389 INFO L208 MainTranslator]: Completed translation [2022-11-23 03:35:30,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:30 WrapperNode [2022-11-23 03:35:30,392 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 03:35:30,394 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 03:35:30,395 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 03:35:30,396 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 03:35:30,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:30" (1/1) ... [2022-11-23 03:35:30,411 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:30" (1/1) ... [2022-11-23 03:35:30,437 INFO L138 Inliner]: procedures = 5, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 45 [2022-11-23 03:35:30,438 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 03:35:30,439 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 03:35:30,439 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 03:35:30,439 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 03:35:30,451 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:30" (1/1) ... [2022-11-23 03:35:30,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:30" (1/1) ... [2022-11-23 03:35:30,453 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:30" (1/1) ... [2022-11-23 03:35:30,454 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:30" (1/1) ... [2022-11-23 03:35:30,466 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:30" (1/1) ... [2022-11-23 03:35:30,473 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:30" (1/1) ... [2022-11-23 03:35:30,475 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:30" (1/1) ... [2022-11-23 03:35:30,476 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:30" (1/1) ... [2022-11-23 03:35:30,485 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 03:35:30,486 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 03:35:30,488 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 03:35:30,488 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 03:35:30,490 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:30" (1/1) ... [2022-11-23 03:35:30,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:35:30,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:35:30,532 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 03:35:30,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 03:35:30,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 03:35:30,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 03:35:30,667 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 03:35:30,669 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 03:35:30,903 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 03:35:30,911 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 03:35:30,912 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 03:35:30,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:35:30 BoogieIcfgContainer [2022-11-23 03:35:30,915 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 03:35:30,918 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 03:35:30,918 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 03:35:30,923 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 03:35:30,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:35:30" (1/3) ... [2022-11-23 03:35:30,924 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c742f04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:35:30, skipping insertion in model container [2022-11-23 03:35:30,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:30" (2/3) ... [2022-11-23 03:35:30,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c742f04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:35:30, skipping insertion in model container [2022-11-23 03:35:30,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:35:30" (3/3) ... [2022-11-23 03:35:30,927 INFO L112 eAbstractionObserver]: Analyzing ICFG twisted.c [2022-11-23 03:35:30,979 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 03:35:30,979 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-23 03:35:31,099 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 03:35:31,112 INFO L357 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=PETRI_NET, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@38794a78, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 03:35:31,113 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-23 03:35:31,120 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.7058823529411764) internal successors, (29), 23 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:31,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 03:35:31,128 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:35:31,129 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 03:35:31,130 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:35:31,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:35:31,138 INFO L85 PathProgramCache]: Analyzing trace with hash 28694852, now seen corresponding path program 1 times [2022-11-23 03:35:31,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:35:31,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048383089] [2022-11-23 03:35:31,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:35:31,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:35:31,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:35:31,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:31,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:35:31,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048383089] [2022-11-23 03:35:31,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048383089] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:35:31,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:35:31,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:35:31,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512264866] [2022-11-23 03:35:31,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:35:31,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 03:35:31,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:35:31,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 03:35:31,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 03:35:31,523 INFO L87 Difference]: Start difference. First operand has 24 states, 17 states have (on average 1.7058823529411764) internal successors, (29), 23 states have internal predecessors, (29), 0 states have call successors, (0), 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 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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) [2022-11-23 03:35:31,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:35:31,604 INFO L93 Difference]: Finished difference Result 45 states and 56 transitions. [2022-11-23 03:35:31,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 03:35:31,607 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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 [2022-11-23 03:35:31,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:35:31,618 INFO L225 Difference]: With dead ends: 45 [2022-11-23 03:35:31,618 INFO L226 Difference]: Without dead ends: 19 [2022-11-23 03:35:31,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:35:31,626 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 24 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:35:31,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 26 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:35:31,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-23 03:35:31,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-11-23 03:35:31,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 18 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) [2022-11-23 03:35:31,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2022-11-23 03:35:31,670 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 5 [2022-11-23 03:35:31,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:35:31,671 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2022-11-23 03:35:31,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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) [2022-11-23 03:35:31,672 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2022-11-23 03:35:31,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-23 03:35:31,672 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:35:31,673 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-23 03:35:31,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 03:35:31,674 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:35:31,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:35:31,675 INFO L85 PathProgramCache]: Analyzing trace with hash 889540457, now seen corresponding path program 1 times [2022-11-23 03:35:31,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:35:31,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602124964] [2022-11-23 03:35:31,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:35:31,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:35:31,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:35:31,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:31,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:35:31,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602124964] [2022-11-23 03:35:31,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602124964] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:35:31,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:35:31,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:35:31,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413232563] [2022-11-23 03:35:31,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:35:31,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 03:35:31,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:35:31,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 03:35:31,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 03:35:31,733 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:31,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:35:31,828 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2022-11-23 03:35:31,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 03:35:31,829 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 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 6 [2022-11-23 03:35:31,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:35:31,830 INFO L225 Difference]: With dead ends: 35 [2022-11-23 03:35:31,830 INFO L226 Difference]: Without dead ends: 34 [2022-11-23 03:35:31,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:35:31,833 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 15 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:35:31,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 35 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:35:31,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-11-23 03:35:31,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 28. [2022-11-23 03:35:31,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 23 states have (on average 1.565217391304348) internal successors, (36), 27 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:31,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2022-11-23 03:35:31,843 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 36 transitions. Word has length 6 [2022-11-23 03:35:31,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:35:31,844 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 36 transitions. [2022-11-23 03:35:31,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:31,844 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2022-11-23 03:35:31,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-23 03:35:31,845 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:35:31,845 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:35:31,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 03:35:31,846 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:35:31,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:35:31,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1805903811, now seen corresponding path program 1 times [2022-11-23 03:35:31,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:35:31,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318729629] [2022-11-23 03:35:31,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:35:31,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:35:31,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:35:31,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:31,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:35:31,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318729629] [2022-11-23 03:35:31,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318729629] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:35:31,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:35:31,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 03:35:31,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529413757] [2022-11-23 03:35:31,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:35:31,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:35:31,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:35:31,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:35:31,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:35:31,930 INFO L87 Difference]: Start difference. First operand 28 states and 36 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2022-11-23 03:35:31,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:35:31,990 INFO L93 Difference]: Finished difference Result 41 states and 51 transitions. [2022-11-23 03:35:31,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:35:31,991 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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 [2022-11-23 03:35:31,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:35:31,992 INFO L225 Difference]: With dead ends: 41 [2022-11-23 03:35:31,992 INFO L226 Difference]: Without dead ends: 40 [2022-11-23 03:35:31,993 INFO L412 NwaCegarLoop]: 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 [2022-11-23 03:35:31,995 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 8 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:35:31,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 24 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:35:31,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-11-23 03:35:32,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 33. [2022-11-23 03:35:32,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 28 states have (on average 1.5357142857142858) internal successors, (43), 32 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:32,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 43 transitions. [2022-11-23 03:35:32,007 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 43 transitions. Word has length 7 [2022-11-23 03:35:32,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:35:32,008 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 43 transitions. [2022-11-23 03:35:32,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2022-11-23 03:35:32,008 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2022-11-23 03:35:32,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-23 03:35:32,009 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:35:32,009 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:35:32,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 03:35:32,010 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:35:32,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:35:32,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1805903861, now seen corresponding path program 1 times [2022-11-23 03:35:32,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:35:32,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800879276] [2022-11-23 03:35:32,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:35:32,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:35:32,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:35:32,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:32,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:35:32,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800879276] [2022-11-23 03:35:32,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800879276] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:35:32,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:35:32,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:35:32,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050929747] [2022-11-23 03:35:32,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:35:32,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 03:35:32,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:35:32,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 03:35:32,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 03:35:32,064 INFO L87 Difference]: Start difference. First operand 33 states and 43 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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) [2022-11-23 03:35:32,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:35:32,106 INFO L93 Difference]: Finished difference Result 33 states and 43 transitions. [2022-11-23 03:35:32,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 03:35:32,107 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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 [2022-11-23 03:35:32,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:35:32,108 INFO L225 Difference]: With dead ends: 33 [2022-11-23 03:35:32,108 INFO L226 Difference]: Without dead ends: 32 [2022-11-23 03:35:32,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:35:32,111 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 17 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:35:32,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 26 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:35:32,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-11-23 03:35:32,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2022-11-23 03:35:32,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 28 states have (on average 1.4642857142857142) internal successors, (41), 31 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) [2022-11-23 03:35:32,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 41 transitions. [2022-11-23 03:35:32,134 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 41 transitions. Word has length 7 [2022-11-23 03:35:32,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:35:32,134 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 41 transitions. [2022-11-23 03:35:32,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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) [2022-11-23 03:35:32,135 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 41 transitions. [2022-11-23 03:35:32,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 03:35:32,136 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:35:32,136 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:35:32,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 03:35:32,137 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:35:32,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:35:32,138 INFO L85 PathProgramCache]: Analyzing trace with hash 148443370, now seen corresponding path program 1 times [2022-11-23 03:35:32,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:35:32,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549145482] [2022-11-23 03:35:32,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:35:32,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:35:32,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:35:32,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:32,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:35:32,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549145482] [2022-11-23 03:35:32,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549145482] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:35:32,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:35:32,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 03:35:32,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571562117] [2022-11-23 03:35:32,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:35:32,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:35:32,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:35:32,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:35:32,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:35:32,193 INFO L87 Difference]: Start difference. First operand 32 states and 41 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:32,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:35:32,236 INFO L93 Difference]: Finished difference Result 39 states and 47 transitions. [2022-11-23 03:35:32,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:35:32,237 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 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 8 [2022-11-23 03:35:32,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:35:32,238 INFO L225 Difference]: With dead ends: 39 [2022-11-23 03:35:32,238 INFO L226 Difference]: Without dead ends: 36 [2022-11-23 03:35:32,239 INFO L412 NwaCegarLoop]: 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 [2022-11-23 03:35:32,241 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 5 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:35:32,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 23 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:35:32,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-11-23 03:35:32,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 31. [2022-11-23 03:35:32,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 27 states have (on average 1.4444444444444444) internal successors, (39), 30 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:32,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 39 transitions. [2022-11-23 03:35:32,254 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 39 transitions. Word has length 8 [2022-11-23 03:35:32,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:35:32,255 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 39 transitions. [2022-11-23 03:35:32,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:32,255 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 39 transitions. [2022-11-23 03:35:32,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 03:35:32,256 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:35:32,256 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:35:32,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 03:35:32,257 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:35:32,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:35:32,258 INFO L85 PathProgramCache]: Analyzing trace with hash 148444908, now seen corresponding path program 1 times [2022-11-23 03:35:32,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:35:32,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584383079] [2022-11-23 03:35:32,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:35:32,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:35:32,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:35:32,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:32,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:35:32,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584383079] [2022-11-23 03:35:32,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584383079] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:35:32,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:35:32,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:35:32,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539673121] [2022-11-23 03:35:32,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:35:32,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 03:35:32,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:35:32,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 03:35:32,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 03:35:32,355 INFO L87 Difference]: Start difference. First operand 31 states and 39 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:32,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:35:32,403 INFO L93 Difference]: Finished difference Result 49 states and 60 transitions. [2022-11-23 03:35:32,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 03:35:32,404 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 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 8 [2022-11-23 03:35:32,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:35:32,405 INFO L225 Difference]: With dead ends: 49 [2022-11-23 03:35:32,405 INFO L226 Difference]: Without dead ends: 48 [2022-11-23 03:35:32,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:35:32,407 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 12 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:35:32,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 40 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:35:32,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-11-23 03:35:32,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 43. [2022-11-23 03:35:32,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 39 states have (on average 1.4102564102564104) internal successors, (55), 42 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:32,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 55 transitions. [2022-11-23 03:35:32,421 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 55 transitions. Word has length 8 [2022-11-23 03:35:32,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:35:32,422 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 55 transitions. [2022-11-23 03:35:32,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:32,423 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 55 transitions. [2022-11-23 03:35:32,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-23 03:35:32,423 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:35:32,424 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2022-11-23 03:35:32,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 03:35:32,424 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:35:32,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:35:32,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1985747964, now seen corresponding path program 1 times [2022-11-23 03:35:32,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:35:32,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636035079] [2022-11-23 03:35:32,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:35:32,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:35:32,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:35:32,558 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:32,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:35:32,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636035079] [2022-11-23 03:35:32,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636035079] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:35:32,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1738942168] [2022-11-23 03:35:32,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:35:32,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:35:32,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:35:32,563 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:35:32,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 03:35:32,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:35:32,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 03:35:32,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:35:32,666 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:32,666 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:35:32,722 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:32,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1738942168] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:35:32,723 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:35:32,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-11-23 03:35:32,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801727145] [2022-11-23 03:35:32,724 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:35:32,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 03:35:32,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:35:32,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 03:35:32,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-23 03:35:32,726 INFO L87 Difference]: Start difference. First operand 43 states and 55 transitions. Second operand has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 10 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) [2022-11-23 03:35:32,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:35:32,924 INFO L93 Difference]: Finished difference Result 119 states and 152 transitions. [2022-11-23 03:35:32,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 03:35:32,925 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 10 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) Word has length 10 [2022-11-23 03:35:32,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:35:32,927 INFO L225 Difference]: With dead ends: 119 [2022-11-23 03:35:32,927 INFO L226 Difference]: Without dead ends: 118 [2022-11-23 03:35:32,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-11-23 03:35:32,929 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 93 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:35:32,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 50 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:35:32,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2022-11-23 03:35:32,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 78. [2022-11-23 03:35:32,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 74 states have (on average 1.4324324324324325) internal successors, (106), 77 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) [2022-11-23 03:35:32,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 106 transitions. [2022-11-23 03:35:32,971 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 106 transitions. Word has length 10 [2022-11-23 03:35:32,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:35:32,971 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 106 transitions. [2022-11-23 03:35:32,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 10 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) [2022-11-23 03:35:32,972 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 106 transitions. [2022-11-23 03:35:32,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-23 03:35:32,973 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:35:32,973 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:35:32,986 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-23 03:35:33,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:35:33,179 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:35:33,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:35:33,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1985673441, now seen corresponding path program 1 times [2022-11-23 03:35:33,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:35:33,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742023016] [2022-11-23 03:35:33,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:35:33,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:35:33,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:35:33,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:33,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:35:33,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742023016] [2022-11-23 03:35:33,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742023016] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:35:33,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:35:33,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 03:35:33,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857511727] [2022-11-23 03:35:33,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:35:33,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 03:35:33,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:35:33,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 03:35:33,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:35:33,307 INFO L87 Difference]: Start difference. First operand 78 states and 106 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:33,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:35:33,400 INFO L93 Difference]: Finished difference Result 83 states and 111 transitions. [2022-11-23 03:35:33,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 03:35:33,401 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 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 [2022-11-23 03:35:33,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:35:33,406 INFO L225 Difference]: With dead ends: 83 [2022-11-23 03:35:33,410 INFO L226 Difference]: Without dead ends: 82 [2022-11-23 03:35:33,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-23 03:35:33,412 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 19 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:35:33,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 33 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:35:33,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-11-23 03:35:33,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 79. [2022-11-23 03:35:33,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 75 states have (on average 1.4266666666666667) internal successors, (107), 78 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:33,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 107 transitions. [2022-11-23 03:35:33,446 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 107 transitions. Word has length 10 [2022-11-23 03:35:33,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:35:33,446 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 107 transitions. [2022-11-23 03:35:33,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:33,454 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 107 transitions. [2022-11-23 03:35:33,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-23 03:35:33,455 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:35:33,455 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:35:33,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 03:35:33,456 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:35:33,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:35:33,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1493993400, now seen corresponding path program 1 times [2022-11-23 03:35:33,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:35:33,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166586338] [2022-11-23 03:35:33,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:35:33,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:35:33,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:35:33,572 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:33,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:35:33,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166586338] [2022-11-23 03:35:33,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166586338] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:35:33,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [88538834] [2022-11-23 03:35:33,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:35:33,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:35:33,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:35:33,575 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:35:33,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 03:35:33,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:35:33,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 03:35:33,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:35:33,759 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:33,759 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:35:33,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [88538834] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:35:33,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 03:35:33,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2022-11-23 03:35:33,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288033092] [2022-11-23 03:35:33,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:35:33,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 03:35:33,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:35:33,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 03:35:33,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-23 03:35:33,767 INFO L87 Difference]: Start difference. First operand 79 states and 107 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:33,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:35:33,877 INFO L93 Difference]: Finished difference Result 95 states and 125 transitions. [2022-11-23 03:35:33,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 03:35:33,877 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 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 11 [2022-11-23 03:35:33,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:35:33,881 INFO L225 Difference]: With dead ends: 95 [2022-11-23 03:35:33,881 INFO L226 Difference]: Without dead ends: 94 [2022-11-23 03:35:33,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-11-23 03:35:33,887 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 18 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:35:33,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 39 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:35:33,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2022-11-23 03:35:33,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 88. [2022-11-23 03:35:33,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 84 states have (on average 1.4285714285714286) internal successors, (120), 87 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:33,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 120 transitions. [2022-11-23 03:35:33,915 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 120 transitions. Word has length 11 [2022-11-23 03:35:33,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:35:33,915 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 120 transitions. [2022-11-23 03:35:33,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:33,916 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 120 transitions. [2022-11-23 03:35:33,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-23 03:35:33,917 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:35:33,917 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:35:33,930 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 03:35:34,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-23 03:35:34,125 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:35:34,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:35:34,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1426334450, now seen corresponding path program 1 times [2022-11-23 03:35:34,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:35:34,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901365022] [2022-11-23 03:35:34,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:35:34,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:35:34,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:35:34,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:34,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:35:34,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901365022] [2022-11-23 03:35:34,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901365022] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:35:34,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:35:34,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 03:35:34,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230061938] [2022-11-23 03:35:34,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:35:34,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 03:35:34,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:35:34,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 03:35:34,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:35:34,210 INFO L87 Difference]: Start difference. First operand 88 states and 120 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:34,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:35:34,282 INFO L93 Difference]: Finished difference Result 91 states and 122 transitions. [2022-11-23 03:35:34,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 03:35:34,283 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 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 11 [2022-11-23 03:35:34,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:35:34,284 INFO L225 Difference]: With dead ends: 91 [2022-11-23 03:35:34,284 INFO L226 Difference]: Without dead ends: 88 [2022-11-23 03:35:34,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:35:34,285 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 13 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:35:34,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 33 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:35:34,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-11-23 03:35:34,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2022-11-23 03:35:34,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 84 states have (on average 1.4166666666666667) internal successors, (119), 87 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:34,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 119 transitions. [2022-11-23 03:35:34,324 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 119 transitions. Word has length 11 [2022-11-23 03:35:34,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:35:34,325 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 119 transitions. [2022-11-23 03:35:34,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:34,325 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 119 transitions. [2022-11-23 03:35:34,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-23 03:35:34,327 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:35:34,327 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:35:34,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-23 03:35:34,327 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:35:34,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:35:34,329 INFO L85 PathProgramCache]: Analyzing trace with hash 930844933, now seen corresponding path program 1 times [2022-11-23 03:35:34,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:35:34,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442971878] [2022-11-23 03:35:34,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:35:34,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:35:34,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:35:34,414 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:34,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:35:34,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442971878] [2022-11-23 03:35:34,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442971878] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:35:34,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [624745525] [2022-11-23 03:35:34,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:35:34,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:35:34,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:35:34,419 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:35:34,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 03:35:34,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:35:34,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 03:35:34,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:35:34,567 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:34,568 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:35:34,629 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:34,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [624745525] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:35:34,630 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:35:34,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2022-11-23 03:35:34,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718602967] [2022-11-23 03:35:34,631 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:35:34,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-23 03:35:34,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:35:34,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-23 03:35:34,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-11-23 03:35:34,632 INFO L87 Difference]: Start difference. First operand 88 states and 119 transitions. Second operand has 11 states, 10 states have (on average 3.4) internal successors, (34), 11 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) [2022-11-23 03:35:34,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:35:34,884 INFO L93 Difference]: Finished difference Result 131 states and 171 transitions. [2022-11-23 03:35:34,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-23 03:35:34,885 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.4) internal successors, (34), 11 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 12 [2022-11-23 03:35:34,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:35:34,887 INFO L225 Difference]: With dead ends: 131 [2022-11-23 03:35:34,888 INFO L226 Difference]: Without dead ends: 122 [2022-11-23 03:35:34,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272 [2022-11-23 03:35:34,889 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 79 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:35:34,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 50 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:35:34,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-11-23 03:35:34,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 104. [2022-11-23 03:35:34,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 100 states have (on average 1.42) internal successors, (142), 103 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) [2022-11-23 03:35:34,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 142 transitions. [2022-11-23 03:35:34,917 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 142 transitions. Word has length 12 [2022-11-23 03:35:34,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:35:34,918 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 142 transitions. [2022-11-23 03:35:34,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.4) internal successors, (34), 11 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) [2022-11-23 03:35:34,918 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 142 transitions. [2022-11-23 03:35:34,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-23 03:35:34,919 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:35:34,920 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:35:34,930 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 03:35:35,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:35:35,126 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:35:35,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:35:35,126 INFO L85 PathProgramCache]: Analyzing trace with hash 930846471, now seen corresponding path program 1 times [2022-11-23 03:35:35,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:35:35,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16533749] [2022-11-23 03:35:35,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:35:35,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:35:35,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:35:35,174 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:35,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:35:35,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16533749] [2022-11-23 03:35:35,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16533749] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:35:35,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [152678398] [2022-11-23 03:35:35,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:35:35,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:35:35,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:35:35,179 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:35:35,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 03:35:35,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:35:35,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 03:35:35,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:35:35,253 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:35,253 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:35:35,308 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:35,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [152678398] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:35:35,308 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:35:35,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-11-23 03:35:35,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791197355] [2022-11-23 03:35:35,308 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:35:35,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 03:35:35,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:35:35,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 03:35:35,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-23 03:35:35,310 INFO L87 Difference]: Start difference. First operand 104 states and 142 transitions. Second operand has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 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) [2022-11-23 03:35:35,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:35:35,426 INFO L93 Difference]: Finished difference Result 271 states and 375 transitions. [2022-11-23 03:35:35,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 03:35:35,427 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 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) Word has length 12 [2022-11-23 03:35:35,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:35:35,429 INFO L225 Difference]: With dead ends: 271 [2022-11-23 03:35:35,429 INFO L226 Difference]: Without dead ends: 270 [2022-11-23 03:35:35,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-11-23 03:35:35,431 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 92 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:35:35,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 87 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:35:35,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2022-11-23 03:35:35,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 251. [2022-11-23 03:35:35,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 247 states have (on average 1.4008097165991902) internal successors, (346), 250 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:35,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 346 transitions. [2022-11-23 03:35:35,464 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 346 transitions. Word has length 12 [2022-11-23 03:35:35,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:35:35,465 INFO L495 AbstractCegarLoop]: Abstraction has 251 states and 346 transitions. [2022-11-23 03:35:35,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 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) [2022-11-23 03:35:35,465 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 346 transitions. [2022-11-23 03:35:35,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-23 03:35:35,470 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:35:35,470 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:35:35,476 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-23 03:35:35,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-23 03:35:35,676 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:35:35,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:35:35,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1772254812, now seen corresponding path program 1 times [2022-11-23 03:35:35,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:35:35,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917498465] [2022-11-23 03:35:35,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:35:35,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:35:35,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:35:35,774 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:35,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:35:35,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917498465] [2022-11-23 03:35:35,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917498465] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:35:35,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [630667174] [2022-11-23 03:35:35,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:35:35,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:35:35,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:35:35,781 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:35:35,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-23 03:35:35,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:35:35,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 03:35:35,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:35:35,979 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:35,979 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:35:35,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [630667174] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:35:35,980 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 03:35:35,980 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 11 [2022-11-23 03:35:35,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991984103] [2022-11-23 03:35:35,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:35:35,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 03:35:35,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:35:35,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 03:35:35,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-11-23 03:35:35,983 INFO L87 Difference]: Start difference. First operand 251 states and 346 transitions. Second operand has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 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) [2022-11-23 03:35:36,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:35:36,234 INFO L93 Difference]: Finished difference Result 410 states and 566 transitions. [2022-11-23 03:35:36,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 03:35:36,234 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 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 14 [2022-11-23 03:35:36,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:35:36,237 INFO L225 Difference]: With dead ends: 410 [2022-11-23 03:35:36,237 INFO L226 Difference]: Without dead ends: 409 [2022-11-23 03:35:36,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2022-11-23 03:35:36,239 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 41 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:35:36,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 43 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:35:36,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2022-11-23 03:35:36,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 401. [2022-11-23 03:35:36,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 397 states have (on average 1.4130982367758187) internal successors, (561), 400 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:36,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 561 transitions. [2022-11-23 03:35:36,274 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 561 transitions. Word has length 14 [2022-11-23 03:35:36,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:35:36,274 INFO L495 AbstractCegarLoop]: Abstraction has 401 states and 561 transitions. [2022-11-23 03:35:36,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 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) [2022-11-23 03:35:36,274 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 561 transitions. [2022-11-23 03:35:36,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-23 03:35:36,275 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:35:36,275 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:35:36,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-23 03:35:36,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-23 03:35:36,481 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:35:36,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:35:36,482 INFO L85 PathProgramCache]: Analyzing trace with hash 517534035, now seen corresponding path program 1 times [2022-11-23 03:35:36,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:35:36,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677575562] [2022-11-23 03:35:36,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:35:36,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:35:36,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:35:36,574 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:36,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:35:36,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677575562] [2022-11-23 03:35:36,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677575562] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:35:36,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [101933280] [2022-11-23 03:35:36,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:35:36,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:35:36,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:35:36,577 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:35:36,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-23 03:35:36,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:35:36,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 03:35:36,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:35:36,741 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:36,742 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:35:36,829 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:36,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [101933280] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:35:36,830 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:35:36,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2022-11-23 03:35:36,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745927484] [2022-11-23 03:35:36,831 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:35:36,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 03:35:36,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:35:36,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 03:35:36,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2022-11-23 03:35:36,832 INFO L87 Difference]: Start difference. First operand 401 states and 561 transitions. Second operand has 17 states, 16 states have (on average 2.6875) internal successors, (43), 17 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:36,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:35:36,976 INFO L93 Difference]: Finished difference Result 425 states and 588 transitions. [2022-11-23 03:35:36,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 03:35:36,977 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.6875) internal successors, (43), 17 states have internal predecessors, (43), 0 states have call successors, (0), 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 15 [2022-11-23 03:35:36,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:35:36,979 INFO L225 Difference]: With dead ends: 425 [2022-11-23 03:35:36,979 INFO L226 Difference]: Without dead ends: 418 [2022-11-23 03:35:36,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2022-11-23 03:35:36,981 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 85 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:35:36,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 44 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:35:36,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2022-11-23 03:35:37,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 410. [2022-11-23 03:35:37,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 406 states have (on average 1.4039408866995073) internal successors, (570), 409 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:37,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 570 transitions. [2022-11-23 03:35:37,013 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 570 transitions. Word has length 15 [2022-11-23 03:35:37,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:35:37,014 INFO L495 AbstractCegarLoop]: Abstraction has 410 states and 570 transitions. [2022-11-23 03:35:37,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.6875) internal successors, (43), 17 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:37,014 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 570 transitions. [2022-11-23 03:35:37,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-23 03:35:37,015 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:35:37,015 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:35:37,023 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-11-23 03:35:37,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-23 03:35:37,221 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:35:37,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:35:37,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1061225824, now seen corresponding path program 1 times [2022-11-23 03:35:37,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:35:37,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606761413] [2022-11-23 03:35:37,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:35:37,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:35:37,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:35:37,318 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:37,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:35:37,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606761413] [2022-11-23 03:35:37,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606761413] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:35:37,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1862301901] [2022-11-23 03:35:37,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:35:37,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:35:37,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:35:37,321 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:35:37,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-23 03:35:37,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:35:37,367 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 03:35:37,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:35:37,480 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:37,480 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:35:37,575 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:37,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1862301901] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:35:37,575 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:35:37,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2022-11-23 03:35:37,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930135047] [2022-11-23 03:35:37,576 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:35:37,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 03:35:37,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:35:37,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 03:35:37,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2022-11-23 03:35:37,578 INFO L87 Difference]: Start difference. First operand 410 states and 570 transitions. Second operand has 17 states, 16 states have (on average 2.875) internal successors, (46), 17 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) [2022-11-23 03:35:37,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:35:37,981 INFO L93 Difference]: Finished difference Result 499 states and 683 transitions. [2022-11-23 03:35:37,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-23 03:35:37,982 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.875) internal successors, (46), 17 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 16 [2022-11-23 03:35:37,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:35:37,984 INFO L225 Difference]: With dead ends: 499 [2022-11-23 03:35:37,985 INFO L226 Difference]: Without dead ends: 488 [2022-11-23 03:35:37,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=203, Invalid=553, Unknown=0, NotChecked=0, Total=756 [2022-11-23 03:35:37,988 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 82 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 03:35:37,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 61 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 03:35:37,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2022-11-23 03:35:38,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 439. [2022-11-23 03:35:38,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 435 states have (on average 1.3977011494252873) internal successors, (608), 438 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:38,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 608 transitions. [2022-11-23 03:35:38,031 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 608 transitions. Word has length 16 [2022-11-23 03:35:38,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:35:38,031 INFO L495 AbstractCegarLoop]: Abstraction has 439 states and 608 transitions. [2022-11-23 03:35:38,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.875) internal successors, (46), 17 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) [2022-11-23 03:35:38,032 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 608 transitions. [2022-11-23 03:35:38,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-23 03:35:38,033 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:35:38,033 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:35:38,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-23 03:35:38,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-23 03:35:38,239 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:35:38,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:35:38,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1239822903, now seen corresponding path program 1 times [2022-11-23 03:35:38,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:35:38,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842748264] [2022-11-23 03:35:38,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:35:38,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:35:38,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:35:38,261 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:38,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:35:38,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842748264] [2022-11-23 03:35:38,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842748264] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:35:38,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:35:38,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:35:38,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57132794] [2022-11-23 03:35:38,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:35:38,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:35:38,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:35:38,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:35:38,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:35:38,263 INFO L87 Difference]: Start difference. First operand 439 states and 608 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:38,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:35:38,319 INFO L93 Difference]: Finished difference Result 739 states and 1022 transitions. [2022-11-23 03:35:38,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:35:38,320 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 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 17 [2022-11-23 03:35:38,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:35:38,321 INFO L225 Difference]: With dead ends: 739 [2022-11-23 03:35:38,322 INFO L226 Difference]: Without dead ends: 401 [2022-11-23 03:35:38,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:35:38,324 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 5 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:35:38,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 30 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:35:38,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2022-11-23 03:35:38,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 302. [2022-11-23 03:35:38,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 299 states have (on average 1.3444816053511706) internal successors, (402), 301 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:38,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 402 transitions. [2022-11-23 03:35:38,359 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 402 transitions. Word has length 17 [2022-11-23 03:35:38,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:35:38,360 INFO L495 AbstractCegarLoop]: Abstraction has 302 states and 402 transitions. [2022-11-23 03:35:38,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:38,361 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 402 transitions. [2022-11-23 03:35:38,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-23 03:35:38,362 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:35:38,362 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:35:38,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-23 03:35:38,362 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:35:38,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:35:38,363 INFO L85 PathProgramCache]: Analyzing trace with hash 642651187, now seen corresponding path program 1 times [2022-11-23 03:35:38,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:35:38,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103181054] [2022-11-23 03:35:38,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:35:38,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:35:38,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:35:38,564 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:38,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:35:38,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103181054] [2022-11-23 03:35:38,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103181054] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:35:38,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2136058434] [2022-11-23 03:35:38,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:35:38,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:35:38,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:35:38,567 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:35:38,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-23 03:35:38,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:35:38,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-23 03:35:38,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:35:38,799 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:38,799 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:35:38,957 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:38,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2136058434] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:35:38,958 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:35:38,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 28 [2022-11-23 03:35:38,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301184029] [2022-11-23 03:35:38,958 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:35:38,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-11-23 03:35:38,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:35:38,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-11-23 03:35:38,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=626, Unknown=0, NotChecked=0, Total=812 [2022-11-23 03:35:38,960 INFO L87 Difference]: Start difference. First operand 302 states and 402 transitions. Second operand has 29 states, 28 states have (on average 2.392857142857143) internal successors, (67), 29 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:39,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:35:39,685 INFO L93 Difference]: Finished difference Result 521 states and 679 transitions. [2022-11-23 03:35:39,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-11-23 03:35:39,686 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 2.392857142857143) internal successors, (67), 29 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-23 03:35:39,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:35:39,688 INFO L225 Difference]: With dead ends: 521 [2022-11-23 03:35:39,688 INFO L226 Difference]: Without dead ends: 504 [2022-11-23 03:35:39,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 809 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=626, Invalid=2130, Unknown=0, NotChecked=0, Total=2756 [2022-11-23 03:35:39,691 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 239 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 03:35:39,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 64 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 03:35:39,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2022-11-23 03:35:39,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 326. [2022-11-23 03:35:39,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 323 states have (on average 1.3715170278637772) internal successors, (443), 325 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) [2022-11-23 03:35:39,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 443 transitions. [2022-11-23 03:35:39,728 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 443 transitions. Word has length 23 [2022-11-23 03:35:39,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:35:39,729 INFO L495 AbstractCegarLoop]: Abstraction has 326 states and 443 transitions. [2022-11-23 03:35:39,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 2.392857142857143) internal successors, (67), 29 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:39,729 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 443 transitions. [2022-11-23 03:35:39,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-23 03:35:39,730 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:35:39,731 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:35:39,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-23 03:35:39,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-23 03:35:39,936 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:35:39,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:35:39,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1872170922, now seen corresponding path program 2 times [2022-11-23 03:35:39,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:35:39,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935265427] [2022-11-23 03:35:39,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:35:39,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:35:39,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:35:40,103 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:40,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:35:40,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935265427] [2022-11-23 03:35:40,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935265427] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:35:40,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1329476895] [2022-11-23 03:35:40,105 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 03:35:40,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:35:40,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:35:40,106 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:35:40,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-23 03:35:40,156 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 03:35:40,156 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:35:40,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-23 03:35:40,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:35:40,348 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:40,349 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:35:40,508 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:40,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1329476895] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:35:40,509 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:35:40,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 28 [2022-11-23 03:35:40,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482743251] [2022-11-23 03:35:40,509 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:35:40,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-11-23 03:35:40,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:35:40,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-11-23 03:35:40,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=602, Unknown=0, NotChecked=0, Total=812 [2022-11-23 03:35:40,511 INFO L87 Difference]: Start difference. First operand 326 states and 443 transitions. Second operand has 29 states, 28 states have (on average 2.5) internal successors, (70), 29 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) [2022-11-23 03:35:41,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:35:41,104 INFO L93 Difference]: Finished difference Result 443 states and 578 transitions. [2022-11-23 03:35:41,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-23 03:35:41,105 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 2.5) internal successors, (70), 29 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 24 [2022-11-23 03:35:41,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:35:41,107 INFO L225 Difference]: With dead ends: 443 [2022-11-23 03:35:41,107 INFO L226 Difference]: Without dead ends: 428 [2022-11-23 03:35:41,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 660 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=651, Invalid=1605, Unknown=0, NotChecked=0, Total=2256 [2022-11-23 03:35:41,109 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 226 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 03:35:41,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 77 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 03:35:41,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2022-11-23 03:35:41,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 409. [2022-11-23 03:35:41,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 406 states have (on average 1.3374384236453203) internal successors, (543), 408 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:41,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 543 transitions. [2022-11-23 03:35:41,160 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 543 transitions. Word has length 24 [2022-11-23 03:35:41,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:35:41,161 INFO L495 AbstractCegarLoop]: Abstraction has 409 states and 543 transitions. [2022-11-23 03:35:41,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 2.5) internal successors, (70), 29 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) [2022-11-23 03:35:41,161 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 543 transitions. [2022-11-23 03:35:41,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-23 03:35:41,162 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:35:41,162 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1] [2022-11-23 03:35:41,177 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-11-23 03:35:41,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-23 03:35:41,368 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:35:41,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:35:41,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1872169384, now seen corresponding path program 2 times [2022-11-23 03:35:41,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:35:41,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355323166] [2022-11-23 03:35:41,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:35:41,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:35:41,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:35:41,546 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:41,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:35:41,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355323166] [2022-11-23 03:35:41,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355323166] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:35:41,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [644474026] [2022-11-23 03:35:41,547 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 03:35:41,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:35:41,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:35:41,548 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:35:41,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-23 03:35:41,639 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-23 03:35:41,639 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:35:41,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-23 03:35:41,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:35:41,705 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-23 03:35:41,706 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:35:41,768 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-23 03:35:41,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [644474026] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:35:41,769 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:35:41,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 3, 3] total 13 [2022-11-23 03:35:41,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797379024] [2022-11-23 03:35:41,772 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:35:41,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 03:35:41,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:35:41,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 03:35:41,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2022-11-23 03:35:41,774 INFO L87 Difference]: Start difference. First operand 409 states and 543 transitions. Second operand has 14 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 14 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) [2022-11-23 03:35:42,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:35:42,039 INFO L93 Difference]: Finished difference Result 481 states and 633 transitions. [2022-11-23 03:35:42,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-23 03:35:42,040 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 14 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 24 [2022-11-23 03:35:42,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:35:42,042 INFO L225 Difference]: With dead ends: 481 [2022-11-23 03:35:42,043 INFO L226 Difference]: Without dead ends: 480 [2022-11-23 03:35:42,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=174, Invalid=426, Unknown=0, NotChecked=0, Total=600 [2022-11-23 03:35:42,044 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 157 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:35:42,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 95 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:35:42,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2022-11-23 03:35:42,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 256. [2022-11-23 03:35:42,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 254 states have (on average 1.2992125984251968) internal successors, (330), 255 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:42,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 330 transitions. [2022-11-23 03:35:42,097 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 330 transitions. Word has length 24 [2022-11-23 03:35:42,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:35:42,098 INFO L495 AbstractCegarLoop]: Abstraction has 256 states and 330 transitions. [2022-11-23 03:35:42,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 14 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) [2022-11-23 03:35:42,098 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 330 transitions. [2022-11-23 03:35:42,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-23 03:35:42,102 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:35:42,102 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:35:42,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-23 03:35:42,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:35:42,308 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:35:42,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:35:42,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1666643066, now seen corresponding path program 1 times [2022-11-23 03:35:42,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:35:42,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262664389] [2022-11-23 03:35:42,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:35:42,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:35:42,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:35:42,529 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:42,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:35:42,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262664389] [2022-11-23 03:35:42,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262664389] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:35:42,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1421529317] [2022-11-23 03:35:42,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:35:42,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:35:42,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:35:42,532 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:35:42,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-23 03:35:42,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:35:42,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-23 03:35:42,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:35:42,840 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:42,841 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:35:43,062 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:43,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1421529317] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:35:43,063 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:35:43,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 34 [2022-11-23 03:35:43,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662104457] [2022-11-23 03:35:43,077 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:35:43,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-23 03:35:43,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:35:43,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-23 03:35:43,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=268, Invalid=922, Unknown=0, NotChecked=0, Total=1190 [2022-11-23 03:35:43,079 INFO L87 Difference]: Start difference. First operand 256 states and 330 transitions. Second operand has 35 states, 34 states have (on average 2.323529411764706) internal successors, (79), 35 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:43,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:35:43,933 INFO L93 Difference]: Finished difference Result 570 states and 713 transitions. [2022-11-23 03:35:43,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-11-23 03:35:43,934 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 2.323529411764706) internal successors, (79), 35 states have internal predecessors, (79), 0 states have call successors, (0), 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 27 [2022-11-23 03:35:43,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:35:43,937 INFO L225 Difference]: With dead ends: 570 [2022-11-23 03:35:43,937 INFO L226 Difference]: Without dead ends: 553 [2022-11-23 03:35:43,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1109 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=899, Invalid=2761, Unknown=0, NotChecked=0, Total=3660 [2022-11-23 03:35:43,941 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 261 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 03:35:43,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 80 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 03:35:43,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2022-11-23 03:35:44,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 318. [2022-11-23 03:35:44,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 316 states have (on average 1.3132911392405062) internal successors, (415), 317 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:44,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 415 transitions. [2022-11-23 03:35:44,006 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 415 transitions. Word has length 27 [2022-11-23 03:35:44,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:35:44,007 INFO L495 AbstractCegarLoop]: Abstraction has 318 states and 415 transitions. [2022-11-23 03:35:44,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 2.323529411764706) internal successors, (79), 35 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:44,007 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 415 transitions. [2022-11-23 03:35:44,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-23 03:35:44,008 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:35:44,008 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:35:44,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-23 03:35:44,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:35:44,214 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:35:44,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:35:44,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1481942866, now seen corresponding path program 1 times [2022-11-23 03:35:44,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:35:44,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501173608] [2022-11-23 03:35:44,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:35:44,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:35:44,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:35:44,372 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:44,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:35:44,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501173608] [2022-11-23 03:35:44,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501173608] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:35:44,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [83019631] [2022-11-23 03:35:44,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:35:44,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:35:44,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:35:44,375 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:35:44,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-23 03:35:44,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:35:44,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-23 03:35:44,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:35:44,473 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:44,474 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:35:44,689 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:44,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [83019631] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:35:44,689 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:35:44,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2022-11-23 03:35:44,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431818940] [2022-11-23 03:35:44,690 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:35:44,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-23 03:35:44,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:35:44,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-23 03:35:44,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2022-11-23 03:35:44,692 INFO L87 Difference]: Start difference. First operand 318 states and 415 transitions. Second operand has 22 states, 21 states have (on average 2.619047619047619) internal successors, (55), 22 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:45,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:35:45,119 INFO L93 Difference]: Finished difference Result 650 states and 850 transitions. [2022-11-23 03:35:45,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-23 03:35:45,120 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 2.619047619047619) internal successors, (55), 22 states have internal predecessors, (55), 0 states have call successors, (0), 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 [2022-11-23 03:35:45,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:35:45,123 INFO L225 Difference]: With dead ends: 650 [2022-11-23 03:35:45,123 INFO L226 Difference]: Without dead ends: 649 [2022-11-23 03:35:45,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=306, Invalid=686, Unknown=0, NotChecked=0, Total=992 [2022-11-23 03:35:45,124 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 288 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 03:35:45,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 116 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 03:35:45,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2022-11-23 03:35:45,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 358. [2022-11-23 03:35:45,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 356 states have (on average 1.3286516853932584) internal successors, (473), 357 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:45,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 473 transitions. [2022-11-23 03:35:45,203 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 473 transitions. Word has length 28 [2022-11-23 03:35:45,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:35:45,204 INFO L495 AbstractCegarLoop]: Abstraction has 358 states and 473 transitions. [2022-11-23 03:35:45,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 2.619047619047619) internal successors, (55), 22 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:45,205 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 473 transitions. [2022-11-23 03:35:45,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-23 03:35:45,206 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:35:45,206 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:35:45,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-23 03:35:45,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-11-23 03:35:45,417 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:35:45,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:35:45,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1953358763, now seen corresponding path program 1 times [2022-11-23 03:35:45,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:35:45,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284716864] [2022-11-23 03:35:45,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:35:45,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:35:45,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:35:45,623 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:45,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:35:45,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284716864] [2022-11-23 03:35:45,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284716864] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:35:45,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [996270692] [2022-11-23 03:35:45,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:35:45,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:35:45,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:35:45,626 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:35:45,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-23 03:35:45,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:35:45,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-23 03:35:45,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:35:45,974 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:45,975 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:35:46,264 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:46,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [996270692] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:35:46,264 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:35:46,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 40 [2022-11-23 03:35:46,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938140214] [2022-11-23 03:35:46,264 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:35:46,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-11-23 03:35:46,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:35:46,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-11-23 03:35:46,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=334, Invalid=1306, Unknown=0, NotChecked=0, Total=1640 [2022-11-23 03:35:46,266 INFO L87 Difference]: Start difference. First operand 358 states and 473 transitions. Second operand has 41 states, 40 states have (on average 2.425) internal successors, (97), 41 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:47,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:35:47,930 INFO L93 Difference]: Finished difference Result 972 states and 1228 transitions. [2022-11-23 03:35:47,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-11-23 03:35:47,931 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 2.425) internal successors, (97), 41 states have internal predecessors, (97), 0 states have call successors, (0), 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 33 [2022-11-23 03:35:47,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:35:47,936 INFO L225 Difference]: With dead ends: 972 [2022-11-23 03:35:47,936 INFO L226 Difference]: Without dead ends: 951 [2022-11-23 03:35:47,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2714 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1750, Invalid=6440, Unknown=0, NotChecked=0, Total=8190 [2022-11-23 03:35:47,941 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 513 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 03:35:47,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [513 Valid, 84 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 03:35:47,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 951 states. [2022-11-23 03:35:48,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 951 to 503. [2022-11-23 03:35:48,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 501 states have (on average 1.3313373253493015) internal successors, (667), 502 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:48,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 667 transitions. [2022-11-23 03:35:48,093 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 667 transitions. Word has length 33 [2022-11-23 03:35:48,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:35:48,093 INFO L495 AbstractCegarLoop]: Abstraction has 503 states and 667 transitions. [2022-11-23 03:35:48,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 2.425) internal successors, (97), 41 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:48,094 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 667 transitions. [2022-11-23 03:35:48,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-23 03:35:48,095 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:35:48,095 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:35:48,101 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-23 03:35:48,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-11-23 03:35:48,301 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:35:48,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:35:48,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1391952262, now seen corresponding path program 2 times [2022-11-23 03:35:48,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:35:48,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070098216] [2022-11-23 03:35:48,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:35:48,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:35:48,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:35:48,642 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:48,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:35:48,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070098216] [2022-11-23 03:35:48,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070098216] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:35:48,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1742431203] [2022-11-23 03:35:48,643 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 03:35:48,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:35:48,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:35:48,645 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:35:48,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-23 03:35:48,694 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 03:35:48,694 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:35:48,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-23 03:35:48,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:35:49,131 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:49,132 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:35:49,538 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:49,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1742431203] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:35:49,539 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:35:49,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 46 [2022-11-23 03:35:49,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555194041] [2022-11-23 03:35:49,539 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:35:49,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-11-23 03:35:49,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:35:49,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-11-23 03:35:49,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=432, Invalid=1730, Unknown=0, NotChecked=0, Total=2162 [2022-11-23 03:35:49,541 INFO L87 Difference]: Start difference. First operand 503 states and 667 transitions. Second operand has 47 states, 46 states have (on average 2.5) internal successors, (115), 47 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:51,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:35:51,594 INFO L93 Difference]: Finished difference Result 1479 states and 1887 transitions. [2022-11-23 03:35:51,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-11-23 03:35:51,595 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 46 states have (on average 2.5) internal successors, (115), 47 states have internal predecessors, (115), 0 states have call successors, (0), 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 39 [2022-11-23 03:35:51,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:35:51,600 INFO L225 Difference]: With dead ends: 1479 [2022-11-23 03:35:51,600 INFO L226 Difference]: Without dead ends: 1446 [2022-11-23 03:35:51,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3092 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1979, Invalid=7141, Unknown=0, NotChecked=0, Total=9120 [2022-11-23 03:35:51,604 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 491 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 491 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-23 03:35:51,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [491 Valid, 97 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-23 03:35:51,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1446 states. [2022-11-23 03:35:51,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1446 to 687. [2022-11-23 03:35:51,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 687 states, 685 states have (on average 1.3372262773722627) internal successors, (916), 686 states have internal predecessors, (916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:51,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 916 transitions. [2022-11-23 03:35:51,767 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 916 transitions. Word has length 39 [2022-11-23 03:35:51,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:35:51,767 INFO L495 AbstractCegarLoop]: Abstraction has 687 states and 916 transitions. [2022-11-23 03:35:51,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 46 states have (on average 2.5) internal successors, (115), 47 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:51,768 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 916 transitions. [2022-11-23 03:35:51,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-23 03:35:51,769 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:35:51,770 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:35:51,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-23 03:35:51,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-11-23 03:35:51,975 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:35:51,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:35:51,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1159060442, now seen corresponding path program 3 times [2022-11-23 03:35:51,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:35:51,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248276845] [2022-11-23 03:35:51,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:35:51,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:35:52,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:35:52,355 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:52,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:35:52,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248276845] [2022-11-23 03:35:52,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248276845] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:35:52,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [786341003] [2022-11-23 03:35:52,356 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 03:35:52,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:35:52,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:35:52,363 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:35:52,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-23 03:35:52,470 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-23 03:35:52,471 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:35:52,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 03:35:52,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:35:52,514 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-11-23 03:35:52,514 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:35:52,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [786341003] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:35:52,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 03:35:52,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [20] total 22 [2022-11-23 03:35:52,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357243940] [2022-11-23 03:35:52,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:35:52,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:35:52,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:35:52,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:35:52,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=358, Unknown=0, NotChecked=0, Total=462 [2022-11-23 03:35:52,522 INFO L87 Difference]: Start difference. First operand 687 states and 916 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 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) [2022-11-23 03:35:52,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:35:52,750 INFO L93 Difference]: Finished difference Result 1019 states and 1346 transitions. [2022-11-23 03:35:52,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:35:52,751 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 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) Word has length 45 [2022-11-23 03:35:52,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:35:52,753 INFO L225 Difference]: With dead ends: 1019 [2022-11-23 03:35:52,753 INFO L226 Difference]: Without dead ends: 489 [2022-11-23 03:35:52,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=104, Invalid=358, Unknown=0, NotChecked=0, Total=462 [2022-11-23 03:35:52,755 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 9 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:35:52,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 26 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:35:52,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2022-11-23 03:35:52,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 467. [2022-11-23 03:35:52,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 465 states have (on average 1.253763440860215) internal successors, (583), 466 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:52,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 583 transitions. [2022-11-23 03:35:52,966 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 583 transitions. Word has length 45 [2022-11-23 03:35:52,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:35:52,967 INFO L495 AbstractCegarLoop]: Abstraction has 467 states and 583 transitions. [2022-11-23 03:35:52,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 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) [2022-11-23 03:35:52,967 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 583 transitions. [2022-11-23 03:35:52,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-23 03:35:52,968 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:35:52,968 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:35:52,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-23 03:35:53,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-11-23 03:35:53,174 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:35:53,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:35:53,174 INFO L85 PathProgramCache]: Analyzing trace with hash 526963803, now seen corresponding path program 1 times [2022-11-23 03:35:53,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:35:53,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237116822] [2022-11-23 03:35:53,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:35:53,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:35:53,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:35:53,507 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:53,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:35:53,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237116822] [2022-11-23 03:35:53,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237116822] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:35:53,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [409568373] [2022-11-23 03:35:53,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:35:53,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:35:53,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:35:53,509 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:35:53,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-23 03:35:53,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:35:53,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-23 03:35:53,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:35:54,027 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:54,027 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:35:54,533 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:54,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [409568373] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:35:54,533 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:35:54,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 58 [2022-11-23 03:35:54,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086059665] [2022-11-23 03:35:54,534 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:35:54,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2022-11-23 03:35:54,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:35:54,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2022-11-23 03:35:54,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=676, Invalid=2746, Unknown=0, NotChecked=0, Total=3422 [2022-11-23 03:35:54,536 INFO L87 Difference]: Start difference. First operand 467 states and 583 transitions. Second operand has 59 states, 58 states have (on average 2.3448275862068964) internal successors, (136), 59 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) [2022-11-23 03:35:56,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:35:56,855 INFO L93 Difference]: Finished difference Result 1349 states and 1580 transitions. [2022-11-23 03:35:56,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-11-23 03:35:56,856 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 58 states have (on average 2.3448275862068964) internal successors, (136), 59 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 46 [2022-11-23 03:35:56,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:35:56,861 INFO L225 Difference]: With dead ends: 1349 [2022-11-23 03:35:56,861 INFO L226 Difference]: Without dead ends: 1326 [2022-11-23 03:35:56,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4393 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=2935, Invalid=9947, Unknown=0, NotChecked=0, Total=12882 [2022-11-23 03:35:56,865 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 733 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 733 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-23 03:35:56,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [733 Valid, 97 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-23 03:35:56,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1326 states. [2022-11-23 03:35:57,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1326 to 690. [2022-11-23 03:35:57,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 688 states have (on average 1.251453488372093) internal successors, (861), 689 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:57,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 861 transitions. [2022-11-23 03:35:57,055 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 861 transitions. Word has length 46 [2022-11-23 03:35:57,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:35:57,055 INFO L495 AbstractCegarLoop]: Abstraction has 690 states and 861 transitions. [2022-11-23 03:35:57,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 58 states have (on average 2.3448275862068964) internal successors, (136), 59 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) [2022-11-23 03:35:57,055 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 861 transitions. [2022-11-23 03:35:57,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-23 03:35:57,057 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:35:57,057 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:35:57,067 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2022-11-23 03:35:57,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:35:57,262 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:35:57,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:35:57,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1232536089, now seen corresponding path program 2 times [2022-11-23 03:35:57,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:35:57,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062797200] [2022-11-23 03:35:57,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:35:57,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:35:57,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:35:57,607 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:57,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:35:57,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062797200] [2022-11-23 03:35:57,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062797200] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:35:57,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [39539041] [2022-11-23 03:35:57,608 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 03:35:57,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:35:57,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:35:57,611 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:35:57,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-23 03:35:57,664 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 03:35:57,664 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:35:57,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-23 03:35:57,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:35:58,160 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:58,161 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:35:58,666 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:58,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [39539041] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:35:58,668 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:35:58,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 58 [2022-11-23 03:35:58,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864108207] [2022-11-23 03:35:58,668 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:35:58,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2022-11-23 03:35:58,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:35:58,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2022-11-23 03:35:58,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=676, Invalid=2746, Unknown=0, NotChecked=0, Total=3422 [2022-11-23 03:35:58,672 INFO L87 Difference]: Start difference. First operand 690 states and 861 transitions. Second operand has 59 states, 58 states have (on average 2.4482758620689653) internal successors, (142), 59 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) [2022-11-23 03:36:02,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:36:02,083 INFO L93 Difference]: Finished difference Result 1987 states and 2414 transitions. [2022-11-23 03:36:02,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-11-23 03:36:02,084 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 58 states have (on average 2.4482758620689653) internal successors, (142), 59 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 48 [2022-11-23 03:36:02,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:36:02,091 INFO L225 Difference]: With dead ends: 1987 [2022-11-23 03:36:02,091 INFO L226 Difference]: Without dead ends: 1958 [2022-11-23 03:36:02,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6253 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=3749, Invalid=13807, Unknown=0, NotChecked=0, Total=17556 [2022-11-23 03:36:02,095 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 818 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 818 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-23 03:36:02,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [818 Valid, 97 Invalid, 697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-23 03:36:02,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1958 states. [2022-11-23 03:36:02,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1958 to 865. [2022-11-23 03:36:02,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 863 states have (on average 1.2641946697566628) internal successors, (1091), 864 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:36:02,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1091 transitions. [2022-11-23 03:36:02,318 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1091 transitions. Word has length 48 [2022-11-23 03:36:02,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:36:02,319 INFO L495 AbstractCegarLoop]: Abstraction has 865 states and 1091 transitions. [2022-11-23 03:36:02,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 58 states have (on average 2.4482758620689653) internal successors, (142), 59 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) [2022-11-23 03:36:02,319 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1091 transitions. [2022-11-23 03:36:02,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-23 03:36:02,327 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:36:02,328 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:36:02,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-11-23 03:36:02,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:36:02,533 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:36:02,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:36:02,534 INFO L85 PathProgramCache]: Analyzing trace with hash 2064850028, now seen corresponding path program 3 times [2022-11-23 03:36:02,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:36:02,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994750059] [2022-11-23 03:36:02,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:36:02,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:36:02,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:36:03,130 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:36:03,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:36:03,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994750059] [2022-11-23 03:36:03,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994750059] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:36:03,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2147109911] [2022-11-23 03:36:03,131 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 03:36:03,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:36:03,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:36:03,133 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:36:03,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-11-23 03:36:03,190 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-23 03:36:03,190 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:36:03,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-23 03:36:03,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:36:03,495 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 14 proven. 58 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-11-23 03:36:03,495 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:36:04,176 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-11-23 03:36:04,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2147109911] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:36:04,177 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:36:04,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 12, 12] total 48 [2022-11-23 03:36:04,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830833119] [2022-11-23 03:36:04,177 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:36:04,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-11-23 03:36:04,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:36:04,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-11-23 03:36:04,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=267, Invalid=1989, Unknown=0, NotChecked=0, Total=2256 [2022-11-23 03:36:04,179 INFO L87 Difference]: Start difference. First operand 865 states and 1091 transitions. Second operand has 48 states, 48 states have (on average 2.6666666666666665) internal successors, (128), 48 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:36:08,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:36:08,859 INFO L93 Difference]: Finished difference Result 1931 states and 2339 transitions. [2022-11-23 03:36:08,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2022-11-23 03:36:08,859 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 2.6666666666666665) internal successors, (128), 48 states have internal predecessors, (128), 0 states have call successors, (0), 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 [2022-11-23 03:36:08,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:36:08,863 INFO L225 Difference]: With dead ends: 1931 [2022-11-23 03:36:08,863 INFO L226 Difference]: Without dead ends: 795 [2022-11-23 03:36:08,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6474 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=2415, Invalid=20235, Unknown=0, NotChecked=0, Total=22650 [2022-11-23 03:36:08,868 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 1138 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 1733 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1138 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 1838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 1733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:36:08,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1138 Valid, 399 Invalid, 1838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 1733 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-23 03:36:08,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 795 states. [2022-11-23 03:36:09,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 795 to 548. [2022-11-23 03:36:09,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 546 states have (on average 1.1465201465201464) internal successors, (626), 547 states have internal predecessors, (626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:36:09,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 626 transitions. [2022-11-23 03:36:09,052 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 626 transitions. Word has length 58 [2022-11-23 03:36:09,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:36:09,052 INFO L495 AbstractCegarLoop]: Abstraction has 548 states and 626 transitions. [2022-11-23 03:36:09,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 2.6666666666666665) internal successors, (128), 48 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:36:09,052 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 626 transitions. [2022-11-23 03:36:09,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-23 03:36:09,053 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:36:09,053 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 5, 5, 5, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-23 03:36:09,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-11-23 03:36:09,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-11-23 03:36:09,254 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:36:09,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:36:09,254 INFO L85 PathProgramCache]: Analyzing trace with hash -2047235643, now seen corresponding path program 4 times [2022-11-23 03:36:09,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:36:09,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569763550] [2022-11-23 03:36:09,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:36:09,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:36:09,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:36:09,842 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:36:09,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:36:09,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569763550] [2022-11-23 03:36:09,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569763550] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:36:09,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016933864] [2022-11-23 03:36:09,843 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-23 03:36:09,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:36:09,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:36:09,844 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:36:09,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-11-23 03:36:09,894 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-23 03:36:09,894 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:36:09,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 29 conjunts are in the unsatisfiable core [2022-11-23 03:36:09,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:36:10,676 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:36:10,676 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:36:11,513 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:36:11,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1016933864] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:36:11,513 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:36:11,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28, 28] total 82 [2022-11-23 03:36:11,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872942676] [2022-11-23 03:36:11,514 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:36:11,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 83 states [2022-11-23 03:36:11,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:36:11,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2022-11-23 03:36:11,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1276, Invalid=5530, Unknown=0, NotChecked=0, Total=6806 [2022-11-23 03:36:11,517 INFO L87 Difference]: Start difference. First operand 548 states and 626 transitions. Second operand has 83 states, 82 states have (on average 2.317073170731707) internal successors, (190), 83 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) [2022-11-23 03:36:14,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:36:14,076 INFO L93 Difference]: Finished difference Result 1098 states and 1231 transitions. [2022-11-23 03:36:14,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-11-23 03:36:14,077 INFO L78 Accepts]: Start accepts. Automaton has has 83 states, 82 states have (on average 2.317073170731707) internal successors, (190), 83 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 64 [2022-11-23 03:36:14,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:36:14,080 INFO L225 Difference]: With dead ends: 1098 [2022-11-23 03:36:14,080 INFO L226 Difference]: Without dead ends: 1039 [2022-11-23 03:36:14,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7520 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=4411, Invalid=16181, Unknown=0, NotChecked=0, Total=20592 [2022-11-23 03:36:14,084 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 781 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 781 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-23 03:36:14,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [781 Valid, 133 Invalid, 746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-23 03:36:14,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2022-11-23 03:36:14,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 683. [2022-11-23 03:36:14,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 683 states, 681 states have (on average 1.133627019089574) internal successors, (772), 682 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:36:14,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 772 transitions. [2022-11-23 03:36:14,295 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 772 transitions. Word has length 64 [2022-11-23 03:36:14,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:36:14,295 INFO L495 AbstractCegarLoop]: Abstraction has 683 states and 772 transitions. [2022-11-23 03:36:14,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 83 states, 82 states have (on average 2.317073170731707) internal successors, (190), 83 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) [2022-11-23 03:36:14,296 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 772 transitions. [2022-11-23 03:36:14,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-23 03:36:14,297 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:36:14,297 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 6, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1] [2022-11-23 03:36:14,307 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2022-11-23 03:36:14,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-11-23 03:36:14,503 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:36:14,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:36:14,504 INFO L85 PathProgramCache]: Analyzing trace with hash 62712667, now seen corresponding path program 2 times [2022-11-23 03:36:14,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:36:14,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10424643] [2022-11-23 03:36:14,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:36:14,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:36:14,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:36:15,026 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 250 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:36:15,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:36:15,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10424643] [2022-11-23 03:36:15,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10424643] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:36:15,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1106020413] [2022-11-23 03:36:15,027 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 03:36:15,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:36:15,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:36:15,031 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:36:15,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-11-23 03:36:15,078 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-23 03:36:15,078 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:36:15,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-23 03:36:15,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:36:15,232 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2022-11-23 03:36:15,232 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:36:15,380 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2022-11-23 03:36:15,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1106020413] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:36:15,381 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:36:15,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 3, 3] total 25 [2022-11-23 03:36:15,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009434177] [2022-11-23 03:36:15,382 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:36:15,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-23 03:36:15,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:36:15,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-23 03:36:15,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=480, Unknown=0, NotChecked=0, Total=650 [2022-11-23 03:36:15,384 INFO L87 Difference]: Start difference. First operand 683 states and 772 transitions. Second operand has 26 states, 25 states have (on average 3.4) internal successors, (85), 26 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:36:16,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:36:16,468 INFO L93 Difference]: Finished difference Result 1332 states and 1471 transitions. [2022-11-23 03:36:16,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-23 03:36:16,469 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.4) internal successors, (85), 26 states have internal predecessors, (85), 0 states have call successors, (0), 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 [2022-11-23 03:36:16,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:36:16,472 INFO L225 Difference]: With dead ends: 1332 [2022-11-23 03:36:16,472 INFO L226 Difference]: Without dead ends: 1331 [2022-11-23 03:36:16,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 136 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=636, Invalid=1716, Unknown=0, NotChecked=0, Total=2352 [2022-11-23 03:36:16,474 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 250 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 03:36:16,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 98 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 03:36:16,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1331 states. [2022-11-23 03:36:16,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1331 to 557. [2022-11-23 03:36:16,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 556 states have (on average 1.1097122302158273) internal successors, (617), 556 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:36:16,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 617 transitions. [2022-11-23 03:36:16,738 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 617 transitions. Word has length 70 [2022-11-23 03:36:16,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:36:16,738 INFO L495 AbstractCegarLoop]: Abstraction has 557 states and 617 transitions. [2022-11-23 03:36:16,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.4) internal successors, (85), 26 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:36:16,738 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 617 transitions. [2022-11-23 03:36:16,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-23 03:36:16,739 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:36:16,739 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 9, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2022-11-23 03:36:16,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-11-23 03:36:16,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-11-23 03:36:16,941 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:36:16,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:36:16,941 INFO L85 PathProgramCache]: Analyzing trace with hash -2088131041, now seen corresponding path program 1 times [2022-11-23 03:36:16,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:36:16,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826800636] [2022-11-23 03:36:16,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:36:16,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:36:16,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:36:17,799 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 0 proven. 339 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:36:17,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:36:17,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826800636] [2022-11-23 03:36:17,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826800636] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:36:17,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [603830466] [2022-11-23 03:36:17,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:36:17,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:36:17,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:36:17,802 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:36:17,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-11-23 03:36:17,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:36:17,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-23 03:36:17,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:36:18,859 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 0 proven. 339 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:36:18,860 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:36:20,086 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 0 proven. 339 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:36:20,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [603830466] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:36:20,086 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:36:20,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34, 34] total 100 [2022-11-23 03:36:20,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175320536] [2022-11-23 03:36:20,087 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:36:20,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 101 states [2022-11-23 03:36:20,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:36:20,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2022-11-23 03:36:20,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2034, Invalid=8066, Unknown=0, NotChecked=0, Total=10100 [2022-11-23 03:36:20,089 INFO L87 Difference]: Start difference. First operand 557 states and 617 transitions. Second operand has 101 states, 100 states have (on average 2.29) internal successors, (229), 101 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:36:23,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:36:23,358 INFO L93 Difference]: Finished difference Result 1049 states and 1193 transitions. [2022-11-23 03:36:23,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2022-11-23 03:36:23,359 INFO L78 Accepts]: Start accepts. Automaton has has 101 states, 100 states have (on average 2.29) internal successors, (229), 101 states have internal predecessors, (229), 0 states have call successors, (0), 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 77 [2022-11-23 03:36:23,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:36:23,363 INFO L225 Difference]: With dead ends: 1049 [2022-11-23 03:36:23,363 INFO L226 Difference]: Without dead ends: 978 [2022-11-23 03:36:23,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 176 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11490 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=6278, Invalid=25228, Unknown=0, NotChecked=0, Total=31506 [2022-11-23 03:36:23,366 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 890 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 768 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 890 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-23 03:36:23,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [890 Valid, 135 Invalid, 920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 768 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-23 03:36:23,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2022-11-23 03:36:23,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 648. [2022-11-23 03:36:23,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 647 states have (on average 1.1251931993817619) internal successors, (728), 647 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:36:23,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 728 transitions. [2022-11-23 03:36:23,570 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 728 transitions. Word has length 77 [2022-11-23 03:36:23,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:36:23,570 INFO L495 AbstractCegarLoop]: Abstraction has 648 states and 728 transitions. [2022-11-23 03:36:23,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 101 states, 100 states have (on average 2.29) internal successors, (229), 101 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:36:23,571 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 728 transitions. [2022-11-23 03:36:23,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-23 03:36:23,572 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:36:23,572 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:36:23,578 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-11-23 03:36:23,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:36:23,778 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:36:23,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:36:23,779 INFO L85 PathProgramCache]: Analyzing trace with hash -617037781, now seen corresponding path program 2 times [2022-11-23 03:36:23,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:36:23,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380319199] [2022-11-23 03:36:23,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:36:23,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:36:23,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:36:24,907 INFO L134 CoverageAnalysis]: Checked inductivity of 631 backedges. 0 proven. 631 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:36:24,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:36:24,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380319199] [2022-11-23 03:36:24,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380319199] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:36:24,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1845446511] [2022-11-23 03:36:24,907 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 03:36:24,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:36:24,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:36:24,911 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:36:24,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-11-23 03:36:24,974 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 03:36:24,974 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:36:24,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 41 conjunts are in the unsatisfiable core [2022-11-23 03:36:24,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:36:26,200 INFO L134 CoverageAnalysis]: Checked inductivity of 631 backedges. 0 proven. 631 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:36:26,200 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:36:27,880 INFO L134 CoverageAnalysis]: Checked inductivity of 631 backedges. 0 proven. 631 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:36:27,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1845446511] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:36:27,880 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:36:27,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40, 40] total 118 [2022-11-23 03:36:27,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932344905] [2022-11-23 03:36:27,884 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:36:27,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 119 states [2022-11-23 03:36:27,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:36:27,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 119 interpolants. [2022-11-23 03:36:27,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3096, Invalid=10946, Unknown=0, NotChecked=0, Total=14042 [2022-11-23 03:36:27,887 INFO L87 Difference]: Start difference. First operand 648 states and 728 transitions. Second operand has 119 states, 118 states have (on average 2.1186440677966103) internal successors, (250), 119 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) [2022-11-23 03:36:29,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:36:29,882 INFO L93 Difference]: Finished difference Result 946 states and 1045 transitions. [2022-11-23 03:36:29,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-11-23 03:36:29,882 INFO L78 Accepts]: Start accepts. Automaton has has 119 states, 118 states have (on average 2.1186440677966103) internal successors, (250), 119 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 84 [2022-11-23 03:36:29,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:36:29,884 INFO L225 Difference]: With dead ends: 946 [2022-11-23 03:36:29,884 INFO L226 Difference]: Without dead ends: 907 [2022-11-23 03:36:29,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9966 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=5767, Invalid=19039, Unknown=0, NotChecked=0, Total=24806 [2022-11-23 03:36:29,886 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 660 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 660 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 03:36:29,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [660 Valid, 84 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 03:36:29,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2022-11-23 03:36:30,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 731. [2022-11-23 03:36:30,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 731 states, 730 states have (on average 1.110958904109589) internal successors, (811), 730 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:36:30,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 811 transitions. [2022-11-23 03:36:30,158 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 811 transitions. Word has length 84 [2022-11-23 03:36:30,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:36:30,159 INFO L495 AbstractCegarLoop]: Abstraction has 731 states and 811 transitions. [2022-11-23 03:36:30,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 119 states, 118 states have (on average 2.1186440677966103) internal successors, (250), 119 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) [2022-11-23 03:36:30,159 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 811 transitions. [2022-11-23 03:36:30,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-23 03:36:30,161 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:36:30,161 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 7, 7, 7, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1] [2022-11-23 03:36:30,166 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2022-11-23 03:36:30,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:36:30,362 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:36:30,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:36:30,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1323124214, now seen corresponding path program 5 times [2022-11-23 03:36:30,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:36:30,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30751319] [2022-11-23 03:36:30,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:36:30,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:36:30,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:36:31,354 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 0 proven. 334 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:36:31,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:36:31,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30751319] [2022-11-23 03:36:31,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30751319] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:36:31,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1485339323] [2022-11-23 03:36:31,354 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-23 03:36:31,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:36:31,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:36:31,359 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:36:31,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-11-23 03:36:31,428 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2022-11-23 03:36:31,428 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:36:31,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 39 conjunts are in the unsatisfiable core [2022-11-23 03:36:31,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:36:32,616 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 0 proven. 334 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:36:32,617 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:36:34,022 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 0 proven. 334 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:36:34,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1485339323] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:36:34,023 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:36:34,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38, 38] total 112 [2022-11-23 03:36:34,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226682959] [2022-11-23 03:36:34,024 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:36:34,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 113 states [2022-11-23 03:36:34,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:36:34,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 113 interpolants. [2022-11-23 03:36:34,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2310, Invalid=10346, Unknown=0, NotChecked=0, Total=12656 [2022-11-23 03:36:34,027 INFO L87 Difference]: Start difference. First operand 731 states and 811 transitions. Second operand has 113 states, 112 states have (on average 2.2857142857142856) internal successors, (256), 113 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) [2022-11-23 03:36:38,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:36:38,514 INFO L93 Difference]: Finished difference Result 1757 states and 1933 transitions. [2022-11-23 03:36:38,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2022-11-23 03:36:38,514 INFO L78 Accepts]: Start accepts. Automaton has has 113 states, 112 states have (on average 2.2857142857142856) internal successors, (256), 113 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 86 [2022-11-23 03:36:38,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:36:38,520 INFO L225 Difference]: With dead ends: 1757 [2022-11-23 03:36:38,520 INFO L226 Difference]: Without dead ends: 1676 [2022-11-23 03:36:38,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 204 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15729 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=8856, Invalid=33374, Unknown=0, NotChecked=0, Total=42230 [2022-11-23 03:36:38,523 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 1185 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 875 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1185 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 1045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 875 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-23 03:36:38,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1185 Valid, 158 Invalid, 1045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 875 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-23 03:36:38,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1676 states. [2022-11-23 03:36:38,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1676 to 957. [2022-11-23 03:36:38,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 957 states, 956 states have (on average 1.1171548117154813) internal successors, (1068), 956 states have internal predecessors, (1068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:36:38,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 957 states to 957 states and 1068 transitions. [2022-11-23 03:36:38,911 INFO L78 Accepts]: Start accepts. Automaton has 957 states and 1068 transitions. Word has length 86 [2022-11-23 03:36:38,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:36:38,912 INFO L495 AbstractCegarLoop]: Abstraction has 957 states and 1068 transitions. [2022-11-23 03:36:38,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 113 states, 112 states have (on average 2.2857142857142856) internal successors, (256), 113 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) [2022-11-23 03:36:38,912 INFO L276 IsEmpty]: Start isEmpty. Operand 957 states and 1068 transitions. [2022-11-23 03:36:38,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-23 03:36:38,913 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:36:38,914 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 8, 6, 6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1] [2022-11-23 03:36:38,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-11-23 03:36:39,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:36:39,114 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:36:39,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:36:39,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1698227726, now seen corresponding path program 2 times [2022-11-23 03:36:39,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:36:39,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594231042] [2022-11-23 03:36:39,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:36:39,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:36:39,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:36:40,113 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 0 proven. 439 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:36:40,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:36:40,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594231042] [2022-11-23 03:36:40,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594231042] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:36:40,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [362904720] [2022-11-23 03:36:40,113 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 03:36:40,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:36:40,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:36:40,114 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:36:40,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-11-23 03:36:40,170 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 03:36:40,170 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:36:40,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 41 conjunts are in the unsatisfiable core [2022-11-23 03:36:40,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:36:41,374 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 0 proven. 439 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:36:41,374 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:36:42,890 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 0 proven. 439 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:36:42,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [362904720] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:36:42,891 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:36:42,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40, 40] total 118 [2022-11-23 03:36:42,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166905181] [2022-11-23 03:36:42,891 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:36:42,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 119 states [2022-11-23 03:36:42,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:36:42,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 119 interpolants. [2022-11-23 03:36:42,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2680, Invalid=11362, Unknown=0, NotChecked=0, Total=14042 [2022-11-23 03:36:42,894 INFO L87 Difference]: Start difference. First operand 957 states and 1068 transitions. Second operand has 119 states, 118 states have (on average 2.347457627118644) internal successors, (277), 119 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:36:49,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:36:49,290 INFO L93 Difference]: Finished difference Result 2591 states and 2938 transitions. [2022-11-23 03:36:49,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2022-11-23 03:36:49,291 INFO L78 Accepts]: Start accepts. Automaton has has 119 states, 118 states have (on average 2.347457627118644) internal successors, (277), 119 states have internal predecessors, (277), 0 states have call successors, (0), 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 93 [2022-11-23 03:36:49,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:36:49,297 INFO L225 Difference]: With dead ends: 2591 [2022-11-23 03:36:49,298 INFO L226 Difference]: Without dead ends: 2474 [2022-11-23 03:36:49,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 244 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23291 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=11989, Invalid=48281, Unknown=0, NotChecked=0, Total=60270 [2022-11-23 03:36:49,304 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 1514 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 244 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 1260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 244 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-23 03:36:49,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 163 Invalid, 1260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [244 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-23 03:36:49,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2474 states. [2022-11-23 03:36:49,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2474 to 1226. [2022-11-23 03:36:49,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1226 states, 1225 states have (on average 1.129795918367347) internal successors, (1384), 1225 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:36:49,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1226 states to 1226 states and 1384 transitions. [2022-11-23 03:36:49,889 INFO L78 Accepts]: Start accepts. Automaton has 1226 states and 1384 transitions. Word has length 93 [2022-11-23 03:36:49,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:36:49,889 INFO L495 AbstractCegarLoop]: Abstraction has 1226 states and 1384 transitions. [2022-11-23 03:36:49,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 119 states, 118 states have (on average 2.347457627118644) internal successors, (277), 119 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:36:49,890 INFO L276 IsEmpty]: Start isEmpty. Operand 1226 states and 1384 transitions. [2022-11-23 03:36:49,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-23 03:36:49,896 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:36:49,896 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 11, 9, 9, 9, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1] [2022-11-23 03:36:49,908 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-11-23 03:36:50,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2022-11-23 03:36:50,103 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:36:50,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:36:50,104 INFO L85 PathProgramCache]: Analyzing trace with hash -887179862, now seen corresponding path program 6 times [2022-11-23 03:36:50,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:36:50,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353753230] [2022-11-23 03:36:50,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:36:50,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:36:50,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:36:51,729 INFO L134 CoverageAnalysis]: Checked inductivity of 608 backedges. 0 proven. 608 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:36:51,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:36:51,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353753230] [2022-11-23 03:36:51,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353753230] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:36:51,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [711292205] [2022-11-23 03:36:51,729 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-23 03:36:51,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:36:51,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:36:51,730 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:36:51,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-11-23 03:36:51,810 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2022-11-23 03:36:51,810 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:36:51,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 51 conjunts are in the unsatisfiable core [2022-11-23 03:36:51,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:36:53,581 INFO L134 CoverageAnalysis]: Checked inductivity of 608 backedges. 0 proven. 608 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:36:53,581 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:36:55,946 INFO L134 CoverageAnalysis]: Checked inductivity of 608 backedges. 0 proven. 608 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:36:55,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [711292205] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:36:55,946 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:36:55,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50, 50] total 148 [2022-11-23 03:36:55,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222821081] [2022-11-23 03:36:55,947 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:36:55,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 149 states [2022-11-23 03:36:55,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:36:55,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 149 interpolants. [2022-11-23 03:36:55,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3970, Invalid=18082, Unknown=0, NotChecked=0, Total=22052 [2022-11-23 03:36:55,949 INFO L87 Difference]: Start difference. First operand 1226 states and 1384 transitions. Second operand has 149 states, 148 states have (on average 2.2567567567567566) internal successors, (334), 149 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:37:03,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:37:03,643 INFO L93 Difference]: Finished difference Result 3368 states and 3727 transitions. [2022-11-23 03:37:03,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 189 states. [2022-11-23 03:37:03,643 INFO L78 Accepts]: Start accepts. Automaton has has 149 states, 148 states have (on average 2.2567567567567566) internal successors, (334), 149 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-11-23 03:37:03,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:37:03,653 INFO L225 Difference]: With dead ends: 3368 [2022-11-23 03:37:03,653 INFO L226 Difference]: Without dead ends: 3267 [2022-11-23 03:37:03,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 280 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29906 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=16612, Invalid=62630, Unknown=0, NotChecked=0, Total=79242 [2022-11-23 03:37:03,659 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 1647 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 1151 mSolverCounterSat, 289 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1647 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 1440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 289 IncrementalHoareTripleChecker+Valid, 1151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-23 03:37:03,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1647 Valid, 209 Invalid, 1440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [289 Valid, 1151 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-23 03:37:03,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3267 states. [2022-11-23 03:37:04,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3267 to 1492. [2022-11-23 03:37:04,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1492 states, 1491 states have (on average 1.1314553990610328) internal successors, (1687), 1491 states have internal predecessors, (1687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:37:04,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1492 states to 1492 states and 1687 transitions. [2022-11-23 03:37:04,285 INFO L78 Accepts]: Start accepts. Automaton has 1492 states and 1687 transitions. Word has length 112 [2022-11-23 03:37:04,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:37:04,286 INFO L495 AbstractCegarLoop]: Abstraction has 1492 states and 1687 transitions. [2022-11-23 03:37:04,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 149 states, 148 states have (on average 2.2567567567567566) internal successors, (334), 149 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:37:04,286 INFO L276 IsEmpty]: Start isEmpty. Operand 1492 states and 1687 transitions. [2022-11-23 03:37:04,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-11-23 03:37:04,290 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:37:04,290 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 9, 9, 9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1] [2022-11-23 03:37:04,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2022-11-23 03:37:04,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:37:04,495 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:37:04,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:37:04,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1622142107, now seen corresponding path program 3 times [2022-11-23 03:37:04,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:37:04,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399976113] [2022-11-23 03:37:04,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:37:04,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:37:04,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:37:06,295 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 0 proven. 804 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:37:06,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:37:06,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399976113] [2022-11-23 03:37:06,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399976113] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:37:06,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [801443557] [2022-11-23 03:37:06,295 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 03:37:06,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:37:06,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:37:06,297 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:37:06,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-11-23 03:37:06,342 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-23 03:37:06,343 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:37:06,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-23 03:37:06,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:37:06,511 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 283 proven. 16 refuted. 0 times theorem prover too weak. 505 trivial. 0 not checked. [2022-11-23 03:37:06,511 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:37:06,568 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 283 proven. 16 refuted. 0 times theorem prover too weak. 505 trivial. 0 not checked. [2022-11-23 03:37:06,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [801443557] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:37:06,569 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:37:06,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 6, 6] total 59 [2022-11-23 03:37:06,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346044824] [2022-11-23 03:37:06,571 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:37:06,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2022-11-23 03:37:06,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:37:06,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2022-11-23 03:37:06,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=647, Invalid=2775, Unknown=0, NotChecked=0, Total=3422 [2022-11-23 03:37:06,577 INFO L87 Difference]: Start difference. First operand 1492 states and 1687 transitions. Second operand has 59 states, 59 states have (on average 2.694915254237288) internal successors, (159), 59 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:37:09,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:37:09,782 INFO L93 Difference]: Finished difference Result 2068 states and 2301 transitions. [2022-11-23 03:37:09,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-11-23 03:37:09,787 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 59 states have (on average 2.694915254237288) internal successors, (159), 59 states have internal predecessors, (159), 0 states have call successors, (0), 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 127 [2022-11-23 03:37:09,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:37:09,789 INFO L225 Difference]: With dead ends: 2068 [2022-11-23 03:37:09,789 INFO L226 Difference]: Without dead ends: 812 [2022-11-23 03:37:09,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3394 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=2875, Invalid=12875, Unknown=0, NotChecked=0, Total=15750 [2022-11-23 03:37:09,791 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 471 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 03:37:09,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [471 Valid, 134 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 03:37:09,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2022-11-23 03:37:10,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 560. [2022-11-23 03:37:10,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 559 states have (on average 1.0500894454382828) internal successors, (587), 559 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:37:10,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 587 transitions. [2022-11-23 03:37:10,184 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 587 transitions. Word has length 127 [2022-11-23 03:37:10,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:37:10,185 INFO L495 AbstractCegarLoop]: Abstraction has 560 states and 587 transitions. [2022-11-23 03:37:10,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 59 states have (on average 2.694915254237288) internal successors, (159), 59 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:37:10,185 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 587 transitions. [2022-11-23 03:37:10,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-11-23 03:37:10,187 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:37:10,187 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 15, 11, 11, 11, 6, 6, 6, 5, 5, 1, 1, 1, 1, 1, 1] [2022-11-23 03:37:10,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2022-11-23 03:37:10,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:37:10,388 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:37:10,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:37:10,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1523760293, now seen corresponding path program 7 times [2022-11-23 03:37:10,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:37:10,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132510751] [2022-11-23 03:37:10,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:37:10,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:37:10,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:37:12,963 INFO L134 CoverageAnalysis]: Checked inductivity of 1041 backedges. 0 proven. 1041 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:37:12,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:37:12,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132510751] [2022-11-23 03:37:12,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132510751] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:37:12,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1285465403] [2022-11-23 03:37:12,964 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-23 03:37:12,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:37:12,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:37:12,967 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:37:12,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-11-23 03:37:13,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:37:13,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 65 conjunts are in the unsatisfiable core [2022-11-23 03:37:13,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:37:15,669 INFO L134 CoverageAnalysis]: Checked inductivity of 1041 backedges. 0 proven. 1041 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:37:15,669 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:37:19,247 INFO L134 CoverageAnalysis]: Checked inductivity of 1041 backedges. 0 proven. 1041 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:37:19,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1285465403] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:37:19,248 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:37:19,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 64, 64] total 190 [2022-11-23 03:37:19,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81399747] [2022-11-23 03:37:19,248 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:37:19,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 191 states [2022-11-23 03:37:19,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:37:19,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 191 interpolants. [2022-11-23 03:37:19,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6496, Invalid=29794, Unknown=0, NotChecked=0, Total=36290 [2022-11-23 03:37:19,256 INFO L87 Difference]: Start difference. First operand 560 states and 587 transitions. Second operand has 191 states, 190 states have (on average 2.231578947368421) internal successors, (424), 191 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:37:28,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:37:28,509 INFO L93 Difference]: Finished difference Result 1462 states and 1531 transitions. [2022-11-23 03:37:28,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 205 states. [2022-11-23 03:37:28,510 INFO L78 Accepts]: Start accepts. Automaton has has 191 states, 190 states have (on average 2.231578947368421) internal successors, (424), 191 states have internal predecessors, (424), 0 states have call successors, (0), 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 [2022-11-23 03:37:28,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:37:28,512 INFO L225 Difference]: With dead ends: 1462 [2022-11-23 03:37:28,512 INFO L226 Difference]: Without dead ends: 1415 [2022-11-23 03:37:28,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 486 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 329 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42706 ImplicationChecksByTransitivity, 12.8s TimeCoverageRelationStatistics Valid=23693, Invalid=85537, Unknown=0, NotChecked=0, Total=109230 [2022-11-23 03:37:28,520 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 2074 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 1231 mSolverCounterSat, 264 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2074 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 1495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 264 IncrementalHoareTripleChecker+Valid, 1231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:37:28,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2074 Valid, 225 Invalid, 1495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [264 Valid, 1231 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-23 03:37:28,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1415 states. [2022-11-23 03:37:29,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1415 to 650. [2022-11-23 03:37:29,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 649 states have (on average 1.0431432973805854) internal successors, (677), 649 states have internal predecessors, (677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:37:29,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 677 transitions. [2022-11-23 03:37:29,052 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 677 transitions. Word has length 142 [2022-11-23 03:37:29,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:37:29,053 INFO L495 AbstractCegarLoop]: Abstraction has 650 states and 677 transitions. [2022-11-23 03:37:29,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 191 states, 190 states have (on average 2.231578947368421) internal successors, (424), 191 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:37:29,053 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 677 transitions. [2022-11-23 03:37:29,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-11-23 03:37:29,055 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:37:29,056 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 13, 13, 12, 12, 12, 12, 11, 11, 2, 1, 1, 1, 1, 1] [2022-11-23 03:37:29,062 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2022-11-23 03:37:29,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2022-11-23 03:37:29,262 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:37:29,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:37:29,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1425838077, now seen corresponding path program 1 times [2022-11-23 03:37:29,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:37:29,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905400047] [2022-11-23 03:37:29,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:37:29,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:37:29,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:37:32,289 INFO L134 CoverageAnalysis]: Checked inductivity of 1401 backedges. 0 proven. 1401 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:37:32,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:37:32,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905400047] [2022-11-23 03:37:32,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905400047] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:37:32,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1175926869] [2022-11-23 03:37:32,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:37:32,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:37:32,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:37:32,291 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:37:32,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2022-11-23 03:37:32,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:37:32,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 71 conjunts are in the unsatisfiable core [2022-11-23 03:37:32,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:37:35,592 INFO L134 CoverageAnalysis]: Checked inductivity of 1401 backedges. 0 proven. 1401 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:37:35,592 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:37:40,150 INFO L134 CoverageAnalysis]: Checked inductivity of 1401 backedges. 0 proven. 1401 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:37:40,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1175926869] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:37:40,150 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:37:40,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [70, 70, 70] total 208 [2022-11-23 03:37:40,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383158472] [2022-11-23 03:37:40,151 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:37:40,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 209 states [2022-11-23 03:37:40,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:37:40,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 209 interpolants. [2022-11-23 03:37:40,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7758, Invalid=35714, Unknown=0, NotChecked=0, Total=43472 [2022-11-23 03:37:40,158 INFO L87 Difference]: Start difference. First operand 650 states and 677 transitions. Second operand has 209 states, 208 states have (on average 2.4278846153846154) internal successors, (505), 209 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:37:52,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:37:52,930 INFO L93 Difference]: Finished difference Result 1496 states and 1589 transitions. [2022-11-23 03:37:52,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 248 states. [2022-11-23 03:37:52,930 INFO L78 Accepts]: Start accepts. Automaton has has 209 states, 208 states have (on average 2.4278846153846154) internal successors, (505), 209 states have internal predecessors, (505), 0 states have call successors, (0), 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 169 [2022-11-23 03:37:52,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:37:52,936 INFO L225 Difference]: With dead ends: 1496 [2022-11-23 03:37:52,936 INFO L226 Difference]: Without dead ends: 1427 [2022-11-23 03:37:52,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 582 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 383 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58724 ImplicationChecksByTransitivity, 16.7s TimeCoverageRelationStatistics Valid=29075, Invalid=118765, Unknown=0, NotChecked=0, Total=147840 [2022-11-23 03:37:52,944 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 1782 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 1423 mSolverCounterSat, 384 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1782 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 1807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 384 IncrementalHoareTripleChecker+Valid, 1423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-23 03:37:52,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1782 Valid, 267 Invalid, 1807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [384 Valid, 1423 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-23 03:37:52,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1427 states. [2022-11-23 03:37:53,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1427 to 810. [2022-11-23 03:37:53,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 810 states, 809 states have (on average 1.0605686032138442) internal successors, (858), 809 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:37:53,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 810 states to 810 states and 858 transitions. [2022-11-23 03:37:53,514 INFO L78 Accepts]: Start accepts. Automaton has 810 states and 858 transitions. Word has length 169 [2022-11-23 03:37:53,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:37:53,515 INFO L495 AbstractCegarLoop]: Abstraction has 810 states and 858 transitions. [2022-11-23 03:37:53,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 209 states, 208 states have (on average 2.4278846153846154) internal successors, (505), 209 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:37:53,516 INFO L276 IsEmpty]: Start isEmpty. Operand 810 states and 858 transitions. [2022-11-23 03:37:53,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-11-23 03:37:53,519 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:37:53,519 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 20, 13, 13, 13, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1, 1] [2022-11-23 03:37:53,526 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2022-11-23 03:37:53,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2022-11-23 03:37:53,725 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:37:53,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:37:53,726 INFO L85 PathProgramCache]: Analyzing trace with hash -23699845, now seen corresponding path program 8 times [2022-11-23 03:37:53,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:37:53,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155324870] [2022-11-23 03:37:53,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:37:53,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:37:53,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:37:57,416 INFO L134 CoverageAnalysis]: Checked inductivity of 1693 backedges. 0 proven. 1693 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:37:57,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:37:57,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155324870] [2022-11-23 03:37:57,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155324870] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:37:57,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [366046201] [2022-11-23 03:37:57,417 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 03:37:57,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:37:57,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:37:57,418 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:37:57,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2022-11-23 03:37:57,510 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 03:37:57,510 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:37:57,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 81 conjunts are in the unsatisfiable core [2022-11-23 03:37:57,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:38:01,491 INFO L134 CoverageAnalysis]: Checked inductivity of 1693 backedges. 0 proven. 1693 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:38:01,491 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:38:07,346 INFO L134 CoverageAnalysis]: Checked inductivity of 1693 backedges. 0 proven. 1693 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:38:07,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [366046201] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:38:07,346 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:38:07,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [80, 80, 80] total 238 [2022-11-23 03:38:07,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578046927] [2022-11-23 03:38:07,347 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:38:07,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 239 states [2022-11-23 03:38:07,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:38:07,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 239 interpolants. [2022-11-23 03:38:07,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10176, Invalid=46706, Unknown=0, NotChecked=0, Total=56882 [2022-11-23 03:38:07,353 INFO L87 Difference]: Start difference. First operand 810 states and 858 transitions. Second operand has 239 states, 238 states have (on average 2.2100840336134455) internal successors, (526), 239 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:38:22,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:38:22,018 INFO L93 Difference]: Finished difference Result 2149 states and 2251 transitions. [2022-11-23 03:38:22,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 257 states. [2022-11-23 03:38:22,019 INFO L78 Accepts]: Start accepts. Automaton has has 239 states, 238 states have (on average 2.2100840336134455) internal successors, (526), 239 states have internal predecessors, (526), 0 states have call successors, (0), 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 176 [2022-11-23 03:38:22,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:38:22,026 INFO L225 Difference]: With dead ends: 2149 [2022-11-23 03:38:22,027 INFO L226 Difference]: Without dead ends: 2090 [2022-11-23 03:38:22,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 606 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 413 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67808 ImplicationChecksByTransitivity, 19.6s TimeCoverageRelationStatistics Valid=37458, Invalid=134352, Unknown=0, NotChecked=0, Total=171810 [2022-11-23 03:38:22,038 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 2192 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 1661 mSolverCounterSat, 290 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2192 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 1951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 290 IncrementalHoareTripleChecker+Valid, 1661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-23 03:38:22,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2192 Valid, 327 Invalid, 1951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [290 Valid, 1661 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-23 03:38:22,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2090 states. [2022-11-23 03:38:22,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2090 to 942. [2022-11-23 03:38:22,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 941 states have (on average 1.0520722635494155) internal successors, (990), 941 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:38:22,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 990 transitions. [2022-11-23 03:38:22,785 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 990 transitions. Word has length 176 [2022-11-23 03:38:22,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:38:22,785 INFO L495 AbstractCegarLoop]: Abstraction has 942 states and 990 transitions. [2022-11-23 03:38:22,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 239 states, 238 states have (on average 2.2100840336134455) internal successors, (526), 239 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:38:22,786 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 990 transitions. [2022-11-23 03:38:22,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-11-23 03:38:22,790 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:38:22,790 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 26, 15, 15, 15, 8, 8, 8, 7, 7, 1, 1, 1, 1, 1, 1] [2022-11-23 03:38:22,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2022-11-23 03:38:22,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2022-11-23 03:38:22,997 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:38:22,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:38:22,998 INFO L85 PathProgramCache]: Analyzing trace with hash 278452780, now seen corresponding path program 9 times [2022-11-23 03:38:22,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:38:22,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447818545] [2022-11-23 03:38:22,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:38:23,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:38:23,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:38:28,632 INFO L134 CoverageAnalysis]: Checked inductivity of 2636 backedges. 0 proven. 2636 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:38:28,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:38:28,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447818545] [2022-11-23 03:38:28,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447818545] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:38:28,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [88626924] [2022-11-23 03:38:28,633 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 03:38:28,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:38:28,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:38:28,636 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:38:28,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2022-11-23 03:38:28,846 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 27 check-sat command(s) [2022-11-23 03:38:28,847 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:38:28,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 99 conjunts are in the unsatisfiable core [2022-11-23 03:38:28,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:38:34,425 INFO L134 CoverageAnalysis]: Checked inductivity of 2636 backedges. 0 proven. 2636 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:38:34,425 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:38:42,539 INFO L134 CoverageAnalysis]: Checked inductivity of 2636 backedges. 0 proven. 2636 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:38:42,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [88626924] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:38:42,540 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:38:42,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [98, 98, 98] total 292 [2022-11-23 03:38:42,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948260441] [2022-11-23 03:38:42,540 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:38:42,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 293 states [2022-11-23 03:38:42,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:38:42,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 293 interpolants. [2022-11-23 03:38:42,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15346, Invalid=70210, Unknown=0, NotChecked=0, Total=85556 [2022-11-23 03:38:42,552 INFO L87 Difference]: Start difference. First operand 942 states and 990 transitions. Second operand has 293 states, 292 states have (on average 2.191780821917808) internal successors, (640), 293 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:39:03,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:39:03,520 INFO L93 Difference]: Finished difference Result 2439 states and 2555 transitions. [2022-11-23 03:39:03,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 315 states. [2022-11-23 03:39:03,520 INFO L78 Accepts]: Start accepts. Automaton has has 293 states, 292 states have (on average 2.191780821917808) internal successors, (640), 293 states have internal predecessors, (640), 0 states have call successors, (0), 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 [2022-11-23 03:39:03,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:39:03,527 INFO L225 Difference]: With dead ends: 2439 [2022-11-23 03:39:03,527 INFO L226 Difference]: Without dead ends: 2366 [2022-11-23 03:39:03,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 740 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 507 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102689 ImplicationChecksByTransitivity, 27.9s TimeCoverageRelationStatistics Valid=56723, Invalid=201849, Unknown=0, NotChecked=0, Total=258572 [2022-11-23 03:39:03,544 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 3219 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 1792 mSolverCounterSat, 447 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3219 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 2239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 447 IncrementalHoareTripleChecker+Valid, 1792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-23 03:39:03,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3219 Valid, 338 Invalid, 2239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [447 Valid, 1792 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-23 03:39:03,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2366 states. [2022-11-23 03:39:04,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2366 to 1096. [2022-11-23 03:39:04,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1096 states, 1095 states have (on average 1.0447488584474887) internal successors, (1144), 1095 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:39:04,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 1096 states and 1144 transitions. [2022-11-23 03:39:04,343 INFO L78 Accepts]: Start accepts. Automaton has 1096 states and 1144 transitions. Word has length 214 [2022-11-23 03:39:04,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:39:04,343 INFO L495 AbstractCegarLoop]: Abstraction has 1096 states and 1144 transitions. [2022-11-23 03:39:04,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 293 states, 292 states have (on average 2.191780821917808) internal successors, (640), 293 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:39:04,344 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states and 1144 transitions. [2022-11-23 03:39:04,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2022-11-23 03:39:04,348 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:39:04,348 INFO L195 NwaCegarLoop]: trace histogram [41, 41, 41, 33, 17, 17, 17, 9, 9, 9, 8, 8, 1, 1, 1, 1, 1, 1] [2022-11-23 03:39:04,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2022-11-23 03:39:04,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2022-11-23 03:39:04,554 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:39:04,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:39:04,555 INFO L85 PathProgramCache]: Analyzing trace with hash -125592008, now seen corresponding path program 10 times [2022-11-23 03:39:04,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:39:04,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366276503] [2022-11-23 03:39:04,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:39:04,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:39:04,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:39:11,621 INFO L134 CoverageAnalysis]: Checked inductivity of 3954 backedges. 0 proven. 3954 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:39:11,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:39:11,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366276503] [2022-11-23 03:39:11,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366276503] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:39:11,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1152508695] [2022-11-23 03:39:11,622 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-23 03:39:11,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:39:11,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:39:11,623 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:39:11,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2022-11-23 03:39:11,740 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-23 03:39:11,740 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:39:11,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 119 conjunts are in the unsatisfiable core [2022-11-23 03:39:11,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:39:19,290 INFO L134 CoverageAnalysis]: Checked inductivity of 3954 backedges. 0 proven. 3954 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:39:19,290 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:39:30,855 INFO L134 CoverageAnalysis]: Checked inductivity of 3954 backedges. 0 proven. 3954 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:39:30,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1152508695] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:39:30,855 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:39:30,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [118, 118, 118] total 352 [2022-11-23 03:39:30,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329882743] [2022-11-23 03:39:30,856 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:39:30,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 353 states [2022-11-23 03:39:30,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:39:30,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 353 interpolants. [2022-11-23 03:39:30,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22390, Invalid=101866, Unknown=0, NotChecked=0, Total=124256 [2022-11-23 03:39:30,870 INFO L87 Difference]: Start difference. First operand 1096 states and 1144 transitions. Second operand has 353 states, 352 states have (on average 2.1761363636363638) internal successors, (766), 353 states have internal predecessors, (766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:01,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:40:01,597 INFO L93 Difference]: Finished difference Result 2880 states and 3012 transitions. [2022-11-23 03:40:01,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 379 states. [2022-11-23 03:40:01,598 INFO L78 Accepts]: Start accepts. Automaton has has 353 states, 352 states have (on average 2.1761363636363638) internal successors, (766), 353 states have internal predecessors, (766), 0 states have call successors, (0), 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 [2022-11-23 03:40:01,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:40:01,610 INFO L225 Difference]: With dead ends: 2880 [2022-11-23 03:40:01,611 INFO L226 Difference]: Without dead ends: 2791 [2022-11-23 03:40:01,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 888 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 611 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149713 ImplicationChecksByTransitivity, 38.8s TimeCoverageRelationStatistics Valid=82835, Invalid=292321, Unknown=0, NotChecked=0, Total=375156 [2022-11-23 03:40:01,625 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 3478 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 2179 mSolverCounterSat, 451 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3478 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 2630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 451 IncrementalHoareTripleChecker+Valid, 2179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-23 03:40:01,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3478 Valid, 409 Invalid, 2630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [451 Valid, 2179 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-23 03:40:01,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2791 states. [2022-11-23 03:40:02,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2791 to 1272. [2022-11-23 03:40:02,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1272 states, 1271 states have (on average 1.038552321007081) internal successors, (1320), 1271 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:02,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1272 states to 1272 states and 1320 transitions. [2022-11-23 03:40:02,528 INFO L78 Accepts]: Start accepts. Automaton has 1272 states and 1320 transitions. Word has length 256 [2022-11-23 03:40:02,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:40:02,529 INFO L495 AbstractCegarLoop]: Abstraction has 1272 states and 1320 transitions. [2022-11-23 03:40:02,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 353 states, 352 states have (on average 2.1761363636363638) internal successors, (766), 353 states have internal predecessors, (766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:02,529 INFO L276 IsEmpty]: Start isEmpty. Operand 1272 states and 1320 transitions. [2022-11-23 03:40:02,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-11-23 03:40:02,533 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:40:02,533 INFO L195 NwaCegarLoop]: trace histogram [35, 35, 35, 24, 24, 24, 18, 18, 18, 17, 17, 7, 1, 1, 1, 1, 1, 1] [2022-11-23 03:40:02,543 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2022-11-23 03:40:02,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2022-11-23 03:40:02,739 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:40:02,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:40:02,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1579369729, now seen corresponding path program 11 times [2022-11-23 03:40:02,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:40:02,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371363043] [2022-11-23 03:40:02,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:40:02,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:40:02,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:09,612 INFO L134 CoverageAnalysis]: Checked inductivity of 3849 backedges. 0 proven. 3849 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:40:09,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:40:09,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371363043] [2022-11-23 03:40:09,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371363043] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:40:09,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [322581068] [2022-11-23 03:40:09,613 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-23 03:40:09,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:40:09,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:40:09,614 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:40:09,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2022-11-23 03:40:09,817 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 27 check-sat command(s) [2022-11-23 03:40:09,817 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:40:09,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 565 conjuncts, 121 conjunts are in the unsatisfiable core [2022-11-23 03:40:09,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:40:17,490 INFO L134 CoverageAnalysis]: Checked inductivity of 3849 backedges. 0 proven. 3849 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:40:17,490 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:40:29,285 INFO L134 CoverageAnalysis]: Checked inductivity of 3849 backedges. 0 proven. 3849 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:40:29,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [322581068] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:40:29,285 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:40:29,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [120, 120, 120] total 358 [2022-11-23 03:40:29,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519951918] [2022-11-23 03:40:29,286 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:40:29,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 359 states [2022-11-23 03:40:29,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:40:29,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 359 interpolants. [2022-11-23 03:40:29,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22200, Invalid=106322, Unknown=0, NotChecked=0, Total=128522 [2022-11-23 03:40:29,299 INFO L87 Difference]: Start difference. First operand 1272 states and 1320 transitions. Second operand has 359 states, 358 states have (on average 2.3240223463687153) internal successors, (832), 359 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:06,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:41:06,669 INFO L93 Difference]: Finished difference Result 2887 states and 3035 transitions. [2022-11-23 03:41:06,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 421 states. [2022-11-23 03:41:06,670 INFO L78 Accepts]: Start accepts. Automaton has has 359 states, 358 states have (on average 2.3240223463687153) internal successors, (832), 359 states have internal predecessors, (832), 0 states have call successors, (0), 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 278 [2022-11-23 03:41:06,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:41:06,675 INFO L225 Difference]: With dead ends: 2887 [2022-11-23 03:41:06,675 INFO L226 Difference]: Without dead ends: 2782 [2022-11-23 03:41:06,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 974 GetRequests, 317 SyntacticMatches, 0 SemanticMatches, 657 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174549 ImplicationChecksByTransitivity, 42.7s TimeCoverageRelationStatistics Valid=85979, Invalid=347643, Unknown=0, NotChecked=0, Total=433622 [2022-11-23 03:41:06,703 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 3749 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 2337 mSolverCounterSat, 792 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3749 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 3129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 792 IncrementalHoareTripleChecker+Valid, 2337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:41:06,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3749 Valid, 427 Invalid, 3129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [792 Valid, 2337 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-23 03:41:06,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2782 states. [2022-11-23 03:41:07,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2782 to 1457. [2022-11-23 03:41:07,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1457 states, 1456 states have (on average 1.0508241758241759) internal successors, (1530), 1456 states have internal predecessors, (1530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:07,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1457 states to 1457 states and 1530 transitions. [2022-11-23 03:41:07,652 INFO L78 Accepts]: Start accepts. Automaton has 1457 states and 1530 transitions. Word has length 278 [2022-11-23 03:41:07,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:41:07,653 INFO L495 AbstractCegarLoop]: Abstraction has 1457 states and 1530 transitions. [2022-11-23 03:41:07,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 359 states, 358 states have (on average 2.3240223463687153) internal successors, (832), 359 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:07,654 INFO L276 IsEmpty]: Start isEmpty. Operand 1457 states and 1530 transitions. [2022-11-23 03:41:07,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2022-11-23 03:41:07,655 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:41:07,656 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 41, 19, 19, 19, 10, 10, 10, 9, 9, 1, 1, 1, 1, 1, 1] [2022-11-23 03:41:07,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2022-11-23 03:41:07,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:41:07,856 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:41:07,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:41:07,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1315305313, now seen corresponding path program 12 times [2022-11-23 03:41:07,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:41:07,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890941640] [2022-11-23 03:41:07,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:41:07,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:41:08,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:17,160 INFO L134 CoverageAnalysis]: Checked inductivity of 5743 backedges. 0 proven. 5743 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:41:17,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:41:17,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890941640] [2022-11-23 03:41:17,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890941640] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:41:17,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1443149205] [2022-11-23 03:41:17,161 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-23 03:41:17,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:41:17,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:41:17,163 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:41:17,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2022-11-23 03:41:17,381 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 42 check-sat command(s) [2022-11-23 03:41:17,381 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:41:17,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 141 conjunts are in the unsatisfiable core [2022-11-23 03:41:17,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:41:27,636 INFO L134 CoverageAnalysis]: Checked inductivity of 5743 backedges. 0 proven. 5743 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:41:27,637 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:41:43,563 INFO L134 CoverageAnalysis]: Checked inductivity of 5743 backedges. 0 proven. 5743 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:41:43,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1443149205] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:41:43,564 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:41:43,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [140, 140, 140] total 418 [2022-11-23 03:41:43,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358301605] [2022-11-23 03:41:43,564 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:41:43,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 419 states [2022-11-23 03:41:43,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:41:43,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 419 interpolants. [2022-11-23 03:41:43,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31740, Invalid=143402, Unknown=0, NotChecked=0, Total=175142 [2022-11-23 03:41:43,592 INFO L87 Difference]: Start difference. First operand 1457 states and 1530 transitions. Second operand has 419 states, 418 states have (on average 2.1626794258373208) internal successors, (904), 419 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:31,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:42:31,223 INFO L93 Difference]: Finished difference Result 3825 states and 4000 transitions. [2022-11-23 03:42:31,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 449 states. [2022-11-23 03:42:31,224 INFO L78 Accepts]: Start accepts. Automaton has has 419 states, 418 states have (on average 2.1626794258373208) internal successors, (904), 419 states have internal predecessors, (904), 0 states have call successors, (0), 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 302 [2022-11-23 03:42:31,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:42:31,229 INFO L225 Difference]: With dead ends: 3825 [2022-11-23 03:42:31,229 INFO L226 Difference]: Without dead ends: 3718 [2022-11-23 03:42:31,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1050 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 725 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211301 ImplicationChecksByTransitivity, 53.2s TimeCoverageRelationStatistics Valid=117294, Invalid=410508, Unknown=0, NotChecked=0, Total=527802 [2022-11-23 03:42:31,249 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4808 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 2659 mSolverCounterSat, 622 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4808 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 3281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 622 IncrementalHoareTripleChecker+Valid, 2659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-23 03:42:31,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4808 Valid, 503 Invalid, 3281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [622 Valid, 2659 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-23 03:42:31,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3718 states. [2022-11-23 03:42:32,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3718 to 1655. [2022-11-23 03:42:32,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1655 states, 1654 states have (on average 1.044740024183797) internal successors, (1728), 1654 states have internal predecessors, (1728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:32,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1655 states to 1655 states and 1728 transitions. [2022-11-23 03:42:32,433 INFO L78 Accepts]: Start accepts. Automaton has 1655 states and 1728 transitions. Word has length 302 [2022-11-23 03:42:32,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:42:32,434 INFO L495 AbstractCegarLoop]: Abstraction has 1655 states and 1728 transitions. [2022-11-23 03:42:32,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 419 states, 418 states have (on average 2.1626794258373208) internal successors, (904), 419 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:32,434 INFO L276 IsEmpty]: Start isEmpty. Operand 1655 states and 1728 transitions. [2022-11-23 03:42:32,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2022-11-23 03:42:32,437 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:42:32,437 INFO L195 NwaCegarLoop]: trace histogram [60, 60, 60, 50, 21, 21, 21, 11, 11, 11, 10, 10, 1, 1, 1, 1, 1, 1] [2022-11-23 03:42:32,442 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2022-11-23 03:42:32,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:42:32,638 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:42:32,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:42:32,638 INFO L85 PathProgramCache]: Analyzing trace with hash 808871649, now seen corresponding path program 13 times [2022-11-23 03:42:32,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:42:32,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074900825] [2022-11-23 03:42:32,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:42:32,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:42:32,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:45,391 INFO L134 CoverageAnalysis]: Checked inductivity of 8111 backedges. 0 proven. 8111 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:42:45,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:42:45,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074900825] [2022-11-23 03:42:45,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074900825] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:42:45,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1657337874] [2022-11-23 03:42:45,392 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-23 03:42:45,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:42:45,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:42:45,393 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:42:45,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2022-11-23 03:42:45,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:45,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 713 conjuncts, 165 conjunts are in the unsatisfiable core [2022-11-23 03:42:45,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:42:59,059 INFO L134 CoverageAnalysis]: Checked inductivity of 8111 backedges. 0 proven. 8111 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:42:59,059 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:43:21,142 INFO L134 CoverageAnalysis]: Checked inductivity of 8111 backedges. 0 proven. 8111 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:43:21,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1657337874] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:43:21,142 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:43:21,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [164, 164, 164] total 490 [2022-11-23 03:43:21,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825958529] [2022-11-23 03:43:21,143 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:43:21,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 491 states [2022-11-23 03:43:21,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:43:21,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 491 interpolants. [2022-11-23 03:43:21,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43876, Invalid=196714, Unknown=0, NotChecked=0, Total=240590 [2022-11-23 03:43:21,182 INFO L87 Difference]: Start difference. First operand 1655 states and 1728 transitions. Second operand has 491 states, 490 states have (on average 2.1510204081632653) internal successors, (1054), 491 states have internal predecessors, (1054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:44:34,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:44:34,979 INFO L93 Difference]: Finished difference Result 4538 states and 4733 transitions. [2022-11-23 03:44:34,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 525 states. [2022-11-23 03:44:34,980 INFO L78 Accepts]: Start accepts. Automaton has has 491 states, 490 states have (on average 2.1510204081632653) internal successors, (1054), 491 states have internal predecessors, (1054), 0 states have call successors, (0), 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 352 [2022-11-23 03:44:34,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:44:34,986 INFO L225 Difference]: With dead ends: 4538 [2022-11-23 03:44:34,986 INFO L226 Difference]: Without dead ends: 4411 [2022-11-23 03:44:35,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1226 GetRequests, 377 SyntacticMatches, 0 SemanticMatches, 849 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290338 ImplicationChecksByTransitivity, 73.3s TimeCoverageRelationStatistics Valid=161753, Invalid=561597, Unknown=0, NotChecked=0, Total=723350 [2022-11-23 03:44:35,017 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 5559 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 3091 mSolverCounterSat, 573 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5559 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 3664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 573 IncrementalHoareTripleChecker+Valid, 3091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-23 03:44:35,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5559 Valid, 577 Invalid, 3664 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [573 Valid, 3091 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-23 03:44:35,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4411 states. [2022-11-23 03:44:36,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4411 to 1875. [2022-11-23 03:44:36,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1875 states, 1874 states have (on average 1.0394877267876201) internal successors, (1948), 1874 states have internal predecessors, (1948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:44:36,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1875 states to 1875 states and 1948 transitions. [2022-11-23 03:44:36,371 INFO L78 Accepts]: Start accepts. Automaton has 1875 states and 1948 transitions. Word has length 352 [2022-11-23 03:44:36,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:44:36,372 INFO L495 AbstractCegarLoop]: Abstraction has 1875 states and 1948 transitions. [2022-11-23 03:44:36,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 491 states, 490 states have (on average 2.1510204081632653) internal successors, (1054), 491 states have internal predecessors, (1054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:44:36,372 INFO L276 IsEmpty]: Start isEmpty. Operand 1875 states and 1948 transitions. [2022-11-23 03:44:36,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2022-11-23 03:44:36,375 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:44:36,376 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 43, 42, 42, 42, 22, 22, 22, 21, 21, 21, 1, 1, 1, 1, 1, 1] [2022-11-23 03:44:36,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2022-11-23 03:44:36,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2022-11-23 03:44:36,576 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:44:36,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:44:36,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1416560823, now seen corresponding path program 14 times [2022-11-23 03:44:36,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:44:36,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157224060] [2022-11-23 03:44:36,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:44:36,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:44:36,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:44:51,580 INFO L134 CoverageAnalysis]: Checked inductivity of 7603 backedges. 0 proven. 7603 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:44:51,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:44:51,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157224060] [2022-11-23 03:44:51,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157224060] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:44:51,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1032102072] [2022-11-23 03:44:51,582 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 03:44:51,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:44:51,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:44:51,583 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:44:51,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2022-11-23 03:44:51,759 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 03:44:51,759 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:44:51,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 789 conjuncts, 173 conjunts are in the unsatisfiable core [2022-11-23 03:44:51,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:45:07,262 INFO L134 CoverageAnalysis]: Checked inductivity of 7603 backedges. 0 proven. 7603 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:45:07,262 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:45:30,987 INFO L134 CoverageAnalysis]: Checked inductivity of 7603 backedges. 0 proven. 7603 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:45:30,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1032102072] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:45:30,987 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:45:30,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [172, 172, 172] total 514 [2022-11-23 03:45:30,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614963178] [2022-11-23 03:45:30,988 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:45:30,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 515 states [2022-11-23 03:45:30,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:45:30,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 515 interpolants. [2022-11-23 03:45:31,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44892, Invalid=219818, Unknown=0, NotChecked=0, Total=264710 [2022-11-23 03:45:31,009 INFO L87 Difference]: Start difference. First operand 1875 states and 1948 transitions. Second operand has 515 states, 514 states have (on average 2.272373540856031) internal successors, (1168), 515 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:47:03,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:47:03,074 INFO L93 Difference]: Finished difference Result 4378 states and 4569 transitions. [2022-11-23 03:47:03,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 593 states. [2022-11-23 03:47:03,075 INFO L78 Accepts]: Start accepts. Automaton has has 515 states, 514 states have (on average 2.272373540856031) internal successors, (1168), 515 states have internal predecessors, (1168), 0 states have call successors, (0), 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 [2022-11-23 03:47:03,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:47:03,082 INFO L225 Difference]: With dead ends: 4378 [2022-11-23 03:47:03,082 INFO L226 Difference]: Without dead ends: 4255 [2022-11-23 03:47:03,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1370 GetRequests, 437 SyntacticMatches, 0 SemanticMatches, 933 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351974 ImplicationChecksByTransitivity, 85.3s TimeCoverageRelationStatistics Valid=177230, Invalid=696060, Unknown=0, NotChecked=0, Total=873290 [2022-11-23 03:47:03,139 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 6293 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 3142 mSolverCounterSat, 1079 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6293 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 4221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1079 IncrementalHoareTripleChecker+Valid, 3142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-23 03:47:03,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6293 Valid, 573 Invalid, 4221 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1079 Valid, 3142 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-23 03:47:03,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4255 states. [2022-11-23 03:47:04,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4255 to 1995. [2022-11-23 03:47:04,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1995 states, 1994 states have (on average 1.045135406218656) internal successors, (2084), 1994 states have internal predecessors, (2084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:47:04,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1995 states to 1995 states and 2084 transitions. [2022-11-23 03:47:04,722 INFO L78 Accepts]: Start accepts. Automaton has 1995 states and 2084 transitions. Word has length 390 [2022-11-23 03:47:04,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:47:04,723 INFO L495 AbstractCegarLoop]: Abstraction has 1995 states and 2084 transitions. [2022-11-23 03:47:04,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 515 states, 514 states have (on average 2.272373540856031) internal successors, (1168), 515 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:47:04,723 INFO L276 IsEmpty]: Start isEmpty. Operand 1995 states and 2084 transitions. [2022-11-23 03:47:04,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2022-11-23 03:47:04,726 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:47:04,727 INFO L195 NwaCegarLoop]: trace histogram [86, 86, 86, 75, 23, 23, 23, 12, 12, 12, 11, 11, 1, 1, 1, 1, 1, 1] [2022-11-23 03:47:04,732 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2022-11-23 03:47:04,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:47:04,927 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:47:04,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:47:04,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1157480429, now seen corresponding path program 15 times [2022-11-23 03:47:04,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:47:04,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034172402] [2022-11-23 03:47:04,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:47:04,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:47:05,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:47:30,752 INFO L134 CoverageAnalysis]: Checked inductivity of 15873 backedges. 0 proven. 15873 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:47:30,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:47:30,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034172402] [2022-11-23 03:47:30,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034172402] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:47:30,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1258336778] [2022-11-23 03:47:30,753 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 03:47:30,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:47:30,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:47:30,754 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:47:30,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2797e3-6f54-4e64-a135-e8a8b3ea0cba/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2022-11-23 03:47:31,334 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 76 check-sat command(s) [2022-11-23 03:47:31,334 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:47:31,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 941 conjuncts, 221 conjunts are in the unsatisfiable core [2022-11-23 03:47:31,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:47:55,247 INFO L134 CoverageAnalysis]: Checked inductivity of 15873 backedges. 0 proven. 15873 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:47:55,247 INFO L328 TraceCheckSpWp]: Computing backward predicates...