./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0 --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 32bit --witnessprinter.graph.data.programhash 43c551c05c986c34609f999e25a13e0dbb4f692e7b1d3b7f2939ec615c71d0d0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 15:30:04,667 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 15:30:04,669 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 15:30:04,700 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 15:30:04,701 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 15:30:04,702 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 15:30:04,704 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 15:30:04,706 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 15:30:04,708 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 15:30:04,709 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 15:30:04,711 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 15:30:04,712 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 15:30:04,713 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 15:30:04,714 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 15:30:04,715 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 15:30:04,717 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 15:30:04,718 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 15:30:04,719 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 15:30:04,721 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 15:30:04,723 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 15:30:04,725 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 15:30:04,727 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 15:30:04,728 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 15:30:04,729 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 15:30:04,734 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 15:30:04,735 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 15:30:04,735 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 15:30:04,736 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 15:30:04,737 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 15:30:04,738 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 15:30:04,741 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 15:30:04,743 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 15:30:04,744 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 15:30:04,745 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 15:30:04,747 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 15:30:04,748 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 15:30:04,749 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 15:30:04,750 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 15:30:04,750 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 15:30:04,751 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 15:30:04,752 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 15:30:04,753 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-11-22 15:30:04,790 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 15:30:04,790 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 15:30:04,790 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 15:30:04,791 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 15:30:04,792 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 15:30:04,792 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 15:30:04,792 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 15:30:04,793 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 15:30:04,793 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 15:30:04,793 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-22 15:30:04,793 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 15:30:04,793 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 15:30:04,794 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 15:30:04,794 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 15:30:04,794 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 15:30:04,794 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 15:30:04,794 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-22 15:30:04,795 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 15:30:04,795 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 15:30:04,795 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 15:30:04,795 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 15:30:04,796 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 15:30:04,796 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 15:30:04,796 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 15:30:04,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:30:04,796 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 15:30:04,797 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 15:30:04,797 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 15:30:04,797 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 15:30:04,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 15:30:04,798 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 15:30:04,798 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 15:30:04,798 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43c551c05c986c34609f999e25a13e0dbb4f692e7b1d3b7f2939ec615c71d0d0 [2021-11-22 15:30:05,044 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 15:30:05,078 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 15:30:05,082 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 15:30:05,083 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 15:30:05,084 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 15:30:05,085 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-1.i [2021-11-22 15:30:05,151 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/data/5ca68eb49/aa058690cfdf494b885b1ef019a0c24e/FLAG184d13073 [2021-11-22 15:30:05,753 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 15:30:05,753 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-1.i [2021-11-22 15:30:05,779 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/data/5ca68eb49/aa058690cfdf494b885b1ef019a0c24e/FLAG184d13073 [2021-11-22 15:30:05,974 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/data/5ca68eb49/aa058690cfdf494b885b1ef019a0c24e [2021-11-22 15:30:05,976 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 15:30:05,978 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 15:30:05,980 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 15:30:05,980 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 15:30:05,983 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 15:30:05,985 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:30:05" (1/1) ... [2021-11-22 15:30:05,987 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c2dc648 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:05, skipping insertion in model container [2021-11-22 15:30:05,989 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:30:05" (1/1) ... [2021-11-22 15:30:05,996 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 15:30:06,065 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 15:30:06,590 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-1.i[33022,33035] [2021-11-22 15:30:06,850 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:30:06,860 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 15:30:06,901 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-1.i[33022,33035] [2021-11-22 15:30:07,040 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:30:07,089 INFO L208 MainTranslator]: Completed translation [2021-11-22 15:30:07,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:07 WrapperNode [2021-11-22 15:30:07,090 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 15:30:07,091 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 15:30:07,092 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 15:30:07,092 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 15:30:07,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:07" (1/1) ... [2021-11-22 15:30:07,171 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:07" (1/1) ... [2021-11-22 15:30:07,332 INFO L137 Inliner]: procedures = 177, calls = 524, calls flagged for inlining = 16, calls inlined = 28, statements flattened = 2357 [2021-11-22 15:30:07,333 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 15:30:07,347 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 15:30:07,347 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 15:30:07,347 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 15:30:07,356 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:07" (1/1) ... [2021-11-22 15:30:07,357 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:07" (1/1) ... [2021-11-22 15:30:07,381 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:07" (1/1) ... [2021-11-22 15:30:07,381 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:07" (1/1) ... [2021-11-22 15:30:07,474 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:07" (1/1) ... [2021-11-22 15:30:07,499 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:07" (1/1) ... [2021-11-22 15:30:07,513 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:07" (1/1) ... [2021-11-22 15:30:07,542 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 15:30:07,543 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 15:30:07,543 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 15:30:07,543 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 15:30:07,545 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:07" (1/1) ... [2021-11-22 15:30:07,553 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:30:07,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:30:07,595 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 15:30:07,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 15:30:07,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 15:30:07,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 15:30:07,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-22 15:30:07,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 15:30:07,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-22 15:30:07,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 15:30:07,650 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-22 15:30:07,650 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-22 15:30:07,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 15:30:07,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 15:30:07,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 15:30:07,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 15:30:07,989 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 15:30:07,990 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 15:30:09,698 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 15:30:09,717 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 15:30:09,717 INFO L301 CfgBuilder]: Removed 151 assume(true) statements. [2021-11-22 15:30:09,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:30:09 BoogieIcfgContainer [2021-11-22 15:30:09,725 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 15:30:09,729 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 15:30:09,729 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 15:30:09,732 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 15:30:09,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 03:30:05" (1/3) ... [2021-11-22 15:30:09,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e983be4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:30:09, skipping insertion in model container [2021-11-22 15:30:09,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:07" (2/3) ... [2021-11-22 15:30:09,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e983be4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:30:09, skipping insertion in model container [2021-11-22 15:30:09,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:30:09" (3/3) ... [2021-11-22 15:30:09,738 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test10-1.i [2021-11-22 15:30:09,744 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 15:30:09,744 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2021-11-22 15:30:09,797 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 15:30:09,804 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-22 15:30:09,805 INFO L340 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2021-11-22 15:30:09,832 INFO L276 IsEmpty]: Start isEmpty. Operand has 478 states, 465 states have (on average 1.718279569892473) internal successors, (799), 477 states have internal predecessors, (799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:30:09,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-22 15:30:09,837 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:30:09,838 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:30:09,839 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-11-22 15:30:09,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:30:09,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1757860351, now seen corresponding path program 1 times [2021-11-22 15:30:09,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:30:09,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267274893] [2021-11-22 15:30:09,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:30:09,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:30:09,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:30:10,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:30:10,071 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:30:10,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267274893] [2021-11-22 15:30:10,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267274893] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:30:10,073 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:30:10,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 15:30:10,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424413806] [2021-11-22 15:30:10,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:30:10,085 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-22 15:30:10,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:30:10,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-22 15:30:10,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 15:30:10,119 INFO L87 Difference]: Start difference. First operand has 478 states, 465 states have (on average 1.718279569892473) internal successors, (799), 477 states have internal predecessors, (799), 0 states have call successors, (0), 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 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:30:10,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:30:10,228 INFO L93 Difference]: Finished difference Result 954 states and 1596 transitions. [2021-11-22 15:30:10,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 15:30:10,230 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-22 15:30:10,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:30:10,246 INFO L225 Difference]: With dead ends: 954 [2021-11-22 15:30:10,246 INFO L226 Difference]: Without dead ends: 461 [2021-11-22 15:30:10,251 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 15:30:10,255 INFO L933 BasicCegarLoop]: 625 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 15:30:10,256 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 15:30:10,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2021-11-22 15:30:10,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 461. [2021-11-22 15:30:10,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 449 states have (on average 1.3452115812917596) internal successors, (604), 460 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:30:10,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 604 transitions. [2021-11-22 15:30:10,354 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 604 transitions. Word has length 7 [2021-11-22 15:30:10,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:30:10,355 INFO L470 AbstractCegarLoop]: Abstraction has 461 states and 604 transitions. [2021-11-22 15:30:10,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:30:10,355 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 604 transitions. [2021-11-22 15:30:10,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-22 15:30:10,356 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:30:10,356 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:30:10,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 15:30:10,358 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-11-22 15:30:10,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:30:10,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1805953417, now seen corresponding path program 1 times [2021-11-22 15:30:10,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:30:10,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141478753] [2021-11-22 15:30:10,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:30:10,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:30:10,423 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 15:30:10,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [365373461] [2021-11-22 15:30:10,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:30:10,429 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 15:30:10,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:30:10,431 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 15:30:10,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-22 15:30:10,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:30:10,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-22 15:30:10,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:30:10,717 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-22 15:30:10,725 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-22 15:30:10,775 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-22 15:30:10,780 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-22 15:30:10,837 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-22 15:30:10,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:30:10,847 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 15:30:10,847 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:30:10,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141478753] [2021-11-22 15:30:10,848 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 15:30:10,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [365373461] [2021-11-22 15:30:10,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [365373461] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:30:10,849 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:30:10,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 15:30:10,850 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806399472] [2021-11-22 15:30:10,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:30:10,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 15:30:10,851 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:30:10,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 15:30:10,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:30:10,856 INFO L87 Difference]: Start difference. First operand 461 states and 604 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:30:13,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:30:13,039 INFO L93 Difference]: Finished difference Result 553 states and 726 transitions. [2021-11-22 15:30:13,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 15:30:13,040 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-22 15:30:13,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:30:13,044 INFO L225 Difference]: With dead ends: 553 [2021-11-22 15:30:13,044 INFO L226 Difference]: Without dead ends: 551 [2021-11-22 15:30:13,045 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-22 15:30:13,046 INFO L933 BasicCegarLoop]: 555 mSDtfsCounter, 201 mSDsluCounter, 1419 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 1974 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:30:13,047 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 1974 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-11-22 15:30:13,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2021-11-22 15:30:13,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 467. [2021-11-22 15:30:13,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 455 states have (on average 1.3428571428571427) internal successors, (611), 466 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:30:13,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 611 transitions. [2021-11-22 15:30:13,067 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 611 transitions. Word has length 7 [2021-11-22 15:30:13,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:30:13,067 INFO L470 AbstractCegarLoop]: Abstraction has 467 states and 611 transitions. [2021-11-22 15:30:13,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:30:13,068 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 611 transitions. [2021-11-22 15:30:13,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-22 15:30:13,070 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:30:13,071 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:30:13,109 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-22 15:30:13,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-11-22 15:30:13,294 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-11-22 15:30:13,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:30:13,295 INFO L85 PathProgramCache]: Analyzing trace with hash -723726499, now seen corresponding path program 1 times [2021-11-22 15:30:13,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:30:13,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935640278] [2021-11-22 15:30:13,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:30:13,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:30:13,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:30:13,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:30:13,426 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:30:13,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935640278] [2021-11-22 15:30:13,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935640278] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:30:13,426 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:30:13,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 15:30:13,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248992822] [2021-11-22 15:30:13,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:30:13,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:30:13,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:30:13,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:30:13,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:30:13,429 INFO L87 Difference]: Start difference. First operand 467 states and 611 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:30:13,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:30:13,968 INFO L93 Difference]: Finished difference Result 746 states and 977 transitions. [2021-11-22 15:30:13,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 15:30:13,968 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-11-22 15:30:13,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:30:13,971 INFO L225 Difference]: With dead ends: 746 [2021-11-22 15:30:13,972 INFO L226 Difference]: Without dead ends: 467 [2021-11-22 15:30:13,973 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:30:13,974 INFO L933 BasicCegarLoop]: 600 mSDtfsCounter, 3 mSDsluCounter, 1039 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1639 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-22 15:30:13,974 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 1639 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-22 15:30:13,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2021-11-22 15:30:13,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 467. [2021-11-22 15:30:13,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 455 states have (on average 1.3406593406593406) internal successors, (610), 466 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:30:13,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 610 transitions. [2021-11-22 15:30:13,988 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 610 transitions. Word has length 42 [2021-11-22 15:30:13,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:30:13,988 INFO L470 AbstractCegarLoop]: Abstraction has 467 states and 610 transitions. [2021-11-22 15:30:13,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:30:13,989 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 610 transitions. [2021-11-22 15:30:13,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-22 15:30:13,991 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:30:13,991 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:30:13,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-22 15:30:13,992 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-11-22 15:30:13,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:30:13,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1626753544, now seen corresponding path program 1 times [2021-11-22 15:30:13,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:30:13,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152311491] [2021-11-22 15:30:13,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:30:13,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:30:14,016 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 15:30:14,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1349272512] [2021-11-22 15:30:14,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:30:14,017 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 15:30:14,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:30:14,018 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 15:30:14,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-22 15:30:14,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:30:14,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-22 15:30:14,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:30:14,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:30:14,376 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 15:30:14,376 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:30:14,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152311491] [2021-11-22 15:30:14,377 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 15:30:14,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1349272512] [2021-11-22 15:30:14,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1349272512] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:30:14,377 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:30:14,377 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:30:14,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181612015] [2021-11-22 15:30:14,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:30:14,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:30:14,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:30:14,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:30:14,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:30:14,380 INFO L87 Difference]: Start difference. First operand 467 states and 610 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:30:14,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:30:14,460 INFO L93 Difference]: Finished difference Result 947 states and 1243 transitions. [2021-11-22 15:30:14,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:30:14,462 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-11-22 15:30:14,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:30:14,467 INFO L225 Difference]: With dead ends: 947 [2021-11-22 15:30:14,468 INFO L226 Difference]: Without dead ends: 488 [2021-11-22 15:30:14,469 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:30:14,472 INFO L933 BasicCegarLoop]: 584 mSDtfsCounter, 9 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1153 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:30:14,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 1153 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:30:14,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2021-11-22 15:30:14,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 487. [2021-11-22 15:30:14,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 475 states have (on average 1.3263157894736841) internal successors, (630), 486 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:30:14,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 630 transitions. [2021-11-22 15:30:14,491 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 630 transitions. Word has length 58 [2021-11-22 15:30:14,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:30:14,492 INFO L470 AbstractCegarLoop]: Abstraction has 487 states and 630 transitions. [2021-11-22 15:30:14,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:30:14,492 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 630 transitions. [2021-11-22 15:30:14,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-22 15:30:14,500 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:30:14,500 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:30:14,525 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-22 15:30:14,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 15:30:14,706 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-11-22 15:30:14,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:30:14,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1901513158, now seen corresponding path program 1 times [2021-11-22 15:30:14,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:30:14,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783510401] [2021-11-22 15:30:14,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:30:14,707 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:30:14,725 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 15:30:14,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [567639735] [2021-11-22 15:30:14,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:30:14,726 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 15:30:14,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:30:14,727 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 15:30:14,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-22 15:30:14,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:30:14,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-22 15:30:14,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:30:15,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:30:15,085 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 15:30:15,086 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:30:15,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783510401] [2021-11-22 15:30:15,086 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 15:30:15,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [567639735] [2021-11-22 15:30:15,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [567639735] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:30:15,087 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:30:15,087 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 15:30:15,087 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854729939] [2021-11-22 15:30:15,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:30:15,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:30:15,088 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:30:15,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:30:15,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:30:15,089 INFO L87 Difference]: Start difference. First operand 487 states and 630 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:30:15,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:30:15,214 INFO L93 Difference]: Finished difference Result 1040 states and 1354 transitions. [2021-11-22 15:30:15,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 15:30:15,215 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-11-22 15:30:15,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:30:15,233 INFO L225 Difference]: With dead ends: 1040 [2021-11-22 15:30:15,233 INFO L226 Difference]: Without dead ends: 561 [2021-11-22 15:30:15,234 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:30:15,235 INFO L933 BasicCegarLoop]: 698 mSDtfsCounter, 592 mSDsluCounter, 808 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 592 SdHoareTripleChecker+Valid, 1506 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:30:15,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [592 Valid, 1506 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:30:15,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2021-11-22 15:30:15,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 473. [2021-11-22 15:30:15,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 461 states have (on average 1.3210412147505424) internal successors, (609), 472 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:30:15,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 609 transitions. [2021-11-22 15:30:15,253 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 609 transitions. Word has length 58 [2021-11-22 15:30:15,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:30:15,253 INFO L470 AbstractCegarLoop]: Abstraction has 473 states and 609 transitions. [2021-11-22 15:30:15,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:30:15,254 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 609 transitions. [2021-11-22 15:30:15,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-22 15:30:15,255 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:30:15,255 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:30:15,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-22 15:30:15,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 15:30:15,482 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-11-22 15:30:15,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:30:15,483 INFO L85 PathProgramCache]: Analyzing trace with hash 122423020, now seen corresponding path program 1 times [2021-11-22 15:30:15,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:30:15,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992628295] [2021-11-22 15:30:15,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:30:15,483 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:30:15,515 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 15:30:15,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1964845792] [2021-11-22 15:30:15,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:30:15,516 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 15:30:15,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:30:15,523 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 15:30:15,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-22 15:30:15,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:30:15,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-22 15:30:15,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:30:15,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:30:15,984 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 15:30:15,985 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:30:15,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992628295] [2021-11-22 15:30:15,985 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 15:30:15,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1964845792] [2021-11-22 15:30:15,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1964845792] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:30:15,986 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:30:15,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:30:15,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19784137] [2021-11-22 15:30:15,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:30:15,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:30:15,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:30:15,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:30:15,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:30:15,988 INFO L87 Difference]: Start difference. First operand 473 states and 609 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:30:16,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:30:16,123 INFO L93 Difference]: Finished difference Result 1201 states and 1546 transitions. [2021-11-22 15:30:16,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:30:16,124 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-11-22 15:30:16,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:30:16,129 INFO L225 Difference]: With dead ends: 1201 [2021-11-22 15:30:16,129 INFO L226 Difference]: Without dead ends: 736 [2021-11-22 15:30:16,130 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:30:16,131 INFO L933 BasicCegarLoop]: 595 mSDtfsCounter, 305 mSDsluCounter, 570 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 1165 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:30:16,131 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [305 Valid, 1165 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:30:16,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2021-11-22 15:30:16,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 725. [2021-11-22 15:30:16,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 725 states, 713 states have (on average 1.3141654978962132) internal successors, (937), 724 states have internal predecessors, (937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:30:16,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 937 transitions. [2021-11-22 15:30:16,156 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 937 transitions. Word has length 58 [2021-11-22 15:30:16,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:30:16,156 INFO L470 AbstractCegarLoop]: Abstraction has 725 states and 937 transitions. [2021-11-22 15:30:16,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:30:16,157 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 937 transitions. [2021-11-22 15:30:16,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-22 15:30:16,158 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:30:16,158 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:30:16,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-22 15:30:16,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-22 15:30:16,378 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-11-22 15:30:16,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:30:16,378 INFO L85 PathProgramCache]: Analyzing trace with hash -2142666769, now seen corresponding path program 1 times [2021-11-22 15:30:16,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:30:16,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697917237] [2021-11-22 15:30:16,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:30:16,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:30:16,395 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 15:30:16,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1087615420] [2021-11-22 15:30:16,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:30:16,396 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 15:30:16,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:30:16,397 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 15:30:16,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-22 15:30:16,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:30:16,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-22 15:30:16,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:30:16,658 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-22 15:30:16,663 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-22 15:30:16,698 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-22 15:30:16,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-22 15:30:16,724 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2021-11-22 15:30:16,782 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-22 15:30:16,783 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 41 [2021-11-22 15:30:16,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:30:16,901 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 15:30:16,901 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:30:16,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697917237] [2021-11-22 15:30:16,901 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 15:30:16,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1087615420] [2021-11-22 15:30:16,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1087615420] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:30:16,902 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:30:16,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-22 15:30:16,903 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350928699] [2021-11-22 15:30:16,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:30:16,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 15:30:16,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:30:16,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 15:30:16,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-22 15:30:16,904 INFO L87 Difference]: Start difference. First operand 725 states and 937 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:30:18,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:30:18,462 INFO L93 Difference]: Finished difference Result 1360 states and 1757 transitions. [2021-11-22 15:30:18,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 15:30:18,462 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2021-11-22 15:30:18,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:30:18,467 INFO L225 Difference]: With dead ends: 1360 [2021-11-22 15:30:18,467 INFO L226 Difference]: Without dead ends: 727 [2021-11-22 15:30:18,468 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-11-22 15:30:18,469 INFO L933 BasicCegarLoop]: 570 mSDtfsCounter, 99 mSDsluCounter, 1864 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 2434 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-22 15:30:18,469 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 2434 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-22 15:30:18,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2021-11-22 15:30:18,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 725. [2021-11-22 15:30:18,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 725 states, 713 states have (on average 1.3127629733520336) internal successors, (936), 724 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:30:18,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 936 transitions. [2021-11-22 15:30:18,498 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 936 transitions. Word has length 65 [2021-11-22 15:30:18,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:30:18,499 INFO L470 AbstractCegarLoop]: Abstraction has 725 states and 936 transitions. [2021-11-22 15:30:18,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:30:18,503 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 936 transitions. [2021-11-22 15:30:18,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-22 15:30:18,504 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:30:18,504 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:30:18,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-22 15:30:18,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-22 15:30:18,718 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-11-22 15:30:18,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:30:18,719 INFO L85 PathProgramCache]: Analyzing trace with hash -961249944, now seen corresponding path program 1 times [2021-11-22 15:30:18,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:30:18,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614275873] [2021-11-22 15:30:18,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:30:18,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:30:18,745 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 15:30:18,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [459905139] [2021-11-22 15:30:18,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:30:18,746 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 15:30:18,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:30:18,762 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 15:30:18,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-22 15:30:18,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:30:18,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-22 15:30:18,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:30:19,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:30:19,135 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 15:30:19,135 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:30:19,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614275873] [2021-11-22 15:30:19,135 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 15:30:19,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [459905139] [2021-11-22 15:30:19,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [459905139] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:30:19,136 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:30:19,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:30:19,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929279057] [2021-11-22 15:30:19,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:30:19,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:30:19,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:30:19,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:30:19,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:30:19,138 INFO L87 Difference]: Start difference. First operand 725 states and 936 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:30:19,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:30:19,216 INFO L93 Difference]: Finished difference Result 1472 states and 1911 transitions. [2021-11-22 15:30:19,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:30:19,216 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2021-11-22 15:30:19,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:30:19,221 INFO L225 Difference]: With dead ends: 1472 [2021-11-22 15:30:19,221 INFO L226 Difference]: Without dead ends: 767 [2021-11-22 15:30:19,222 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:30:19,223 INFO L933 BasicCegarLoop]: 577 mSDtfsCounter, 9 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1139 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:30:19,223 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 1139 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:30:19,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2021-11-22 15:30:19,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 765. [2021-11-22 15:30:19,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 765 states, 753 states have (on average 1.296148738379814) internal successors, (976), 764 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:30:19,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 976 transitions. [2021-11-22 15:30:19,251 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 976 transitions. Word has length 112 [2021-11-22 15:30:19,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:30:19,252 INFO L470 AbstractCegarLoop]: Abstraction has 765 states and 976 transitions. [2021-11-22 15:30:19,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:30:19,252 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 976 transitions. [2021-11-22 15:30:19,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-22 15:30:19,259 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:30:19,259 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:30:19,289 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-11-22 15:30:19,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 15:30:19,474 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-11-22 15:30:19,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:30:19,474 INFO L85 PathProgramCache]: Analyzing trace with hash 657724970, now seen corresponding path program 1 times [2021-11-22 15:30:19,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:30:19,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903013938] [2021-11-22 15:30:19,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:30:19,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:30:19,491 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 15:30:19,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [559740140] [2021-11-22 15:30:19,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:30:19,492 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 15:30:19,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:30:19,498 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 15:30:19,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-22 15:30:19,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:30:19,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-22 15:30:19,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:30:19,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:30:19,886 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 15:30:19,887 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:30:19,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903013938] [2021-11-22 15:30:19,887 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 15:30:19,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [559740140] [2021-11-22 15:30:19,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [559740140] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:30:19,888 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:30:19,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 15:30:19,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929925325] [2021-11-22 15:30:19,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:30:19,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:30:19,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:30:19,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:30:19,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:30:19,890 INFO L87 Difference]: Start difference. First operand 765 states and 976 transitions. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:30:20,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:30:20,004 INFO L93 Difference]: Finished difference Result 1466 states and 1876 transitions. [2021-11-22 15:30:20,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 15:30:20,005 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2021-11-22 15:30:20,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:30:20,010 INFO L225 Difference]: With dead ends: 1466 [2021-11-22 15:30:20,010 INFO L226 Difference]: Without dead ends: 739 [2021-11-22 15:30:20,011 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:30:20,014 INFO L933 BasicCegarLoop]: 580 mSDtfsCounter, 585 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 585 SdHoareTripleChecker+Valid, 1159 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:30:20,014 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [585 Valid, 1159 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:30:20,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2021-11-22 15:30:20,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 737. [2021-11-22 15:30:20,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 737 states, 725 states have (on average 1.2882758620689656) internal successors, (934), 736 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:30:20,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 934 transitions. [2021-11-22 15:30:20,040 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 934 transitions. Word has length 112 [2021-11-22 15:30:20,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:30:20,042 INFO L470 AbstractCegarLoop]: Abstraction has 737 states and 934 transitions. [2021-11-22 15:30:20,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:30:20,042 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 934 transitions. [2021-11-22 15:30:20,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-22 15:30:20,044 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:30:20,044 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:30:20,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-22 15:30:20,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-11-22 15:30:20,262 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-11-22 15:30:20,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:30:20,262 INFO L85 PathProgramCache]: Analyzing trace with hash -734122660, now seen corresponding path program 1 times [2021-11-22 15:30:20,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:30:20,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109382874] [2021-11-22 15:30:20,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:30:20,263 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:30:20,277 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 15:30:20,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [17744184] [2021-11-22 15:30:20,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:30:20,278 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 15:30:20,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:30:20,283 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 15:30:20,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-22 15:30:20,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:30:20,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-22 15:30:20,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:30:20,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:30:20,751 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 15:30:20,751 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:30:20,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109382874] [2021-11-22 15:30:20,752 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 15:30:20,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [17744184] [2021-11-22 15:30:20,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [17744184] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:30:20,752 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:30:20,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:30:20,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200343101] [2021-11-22 15:30:20,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:30:20,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:30:20,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:30:20,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:30:20,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:30:20,754 INFO L87 Difference]: Start difference. First operand 737 states and 934 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:30:20,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:30:20,849 INFO L93 Difference]: Finished difference Result 1732 states and 2217 transitions. [2021-11-22 15:30:20,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:30:20,850 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2021-11-22 15:30:20,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:30:20,856 INFO L225 Difference]: With dead ends: 1732 [2021-11-22 15:30:20,856 INFO L226 Difference]: Without dead ends: 1055 [2021-11-22 15:30:20,858 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:30:20,859 INFO L933 BasicCegarLoop]: 588 mSDtfsCounter, 290 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 1151 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:30:20,860 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [290 Valid, 1151 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:30:20,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1055 states. [2021-11-22 15:30:20,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1055 to 916. [2021-11-22 15:30:20,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 916 states, 904 states have (on average 1.2975663716814159) internal successors, (1173), 915 states have internal predecessors, (1173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:30:20,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 916 states to 916 states and 1173 transitions. [2021-11-22 15:30:20,893 INFO L78 Accepts]: Start accepts. Automaton has 916 states and 1173 transitions. Word has length 112 [2021-11-22 15:30:20,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:30:20,894 INFO L470 AbstractCegarLoop]: Abstraction has 916 states and 1173 transitions. [2021-11-22 15:30:20,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:30:20,894 INFO L276 IsEmpty]: Start isEmpty. Operand 916 states and 1173 transitions. [2021-11-22 15:30:20,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-22 15:30:20,896 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:30:20,896 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:30:20,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-22 15:30:21,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 15:30:21,122 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-11-22 15:30:21,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:30:21,122 INFO L85 PathProgramCache]: Analyzing trace with hash -45356340, now seen corresponding path program 1 times [2021-11-22 15:30:21,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:30:21,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890198058] [2021-11-22 15:30:21,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:30:21,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:30:21,142 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 15:30:21,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2025263919] [2021-11-22 15:30:21,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:30:21,147 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 15:30:21,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:30:21,148 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 15:30:21,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-22 15:30:21,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:30:21,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-22 15:30:21,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:30:21,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:30:21,749 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 15:30:21,750 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:30:21,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890198058] [2021-11-22 15:30:21,750 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 15:30:21,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2025263919] [2021-11-22 15:30:21,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2025263919] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:30:21,751 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:30:21,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:30:21,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882778176] [2021-11-22 15:30:21,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:30:21,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:30:21,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:30:21,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:30:21,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:30:21,755 INFO L87 Difference]: Start difference. First operand 916 states and 1173 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 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) [2021-11-22 15:30:21,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:30:21,821 INFO L93 Difference]: Finished difference Result 1778 states and 2288 transitions. [2021-11-22 15:30:21,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:30:21,822 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 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) Word has length 119 [2021-11-22 15:30:21,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:30:21,828 INFO L225 Difference]: With dead ends: 1778 [2021-11-22 15:30:21,828 INFO L226 Difference]: Without dead ends: 919 [2021-11-22 15:30:21,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:30:21,833 INFO L933 BasicCegarLoop]: 588 mSDtfsCounter, 0 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1160 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 15:30:21,833 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1160 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 15:30:21,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2021-11-22 15:30:21,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 919. [2021-11-22 15:30:21,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 919 states, 907 states have (on average 1.296582138919515) internal successors, (1176), 918 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:30:21,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1176 transitions. [2021-11-22 15:30:21,869 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1176 transitions. Word has length 119 [2021-11-22 15:30:21,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:30:21,870 INFO L470 AbstractCegarLoop]: Abstraction has 919 states and 1176 transitions. [2021-11-22 15:30:21,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 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) [2021-11-22 15:30:21,870 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1176 transitions. [2021-11-22 15:30:21,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-22 15:30:21,872 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:30:21,872 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:30:21,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-22 15:30:22,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-22 15:30:22,098 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-11-22 15:30:22,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:30:22,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1141730047, now seen corresponding path program 1 times [2021-11-22 15:30:22,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:30:22,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554305999] [2021-11-22 15:30:22,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:30:22,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:30:22,126 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 15:30:22,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [984355597] [2021-11-22 15:30:22,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:30:22,127 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 15:30:22,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:30:22,128 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 15:30:22,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-22 15:30:22,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:30:22,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-22 15:30:22,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:30:22,901 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-22 15:30:22,902 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:30:23,074 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-22 15:30:23,074 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:30:23,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554305999] [2021-11-22 15:30:23,075 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 15:30:23,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [984355597] [2021-11-22 15:30:23,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [984355597] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 15:30:23,075 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-22 15:30:23,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-11-22 15:30:23,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869131129] [2021-11-22 15:30:23,076 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-22 15:30:23,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 15:30:23,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:30:23,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 15:30:23,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-22 15:30:23,077 INFO L87 Difference]: Start difference. First operand 919 states and 1176 transitions. Second operand has 6 states, 6 states have (on average 21.5) internal successors, (129), 6 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:30:23,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:30:23,218 INFO L93 Difference]: Finished difference Result 1799 states and 2322 transitions. [2021-11-22 15:30:23,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 15:30:23,219 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.5) internal successors, (129), 6 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2021-11-22 15:30:23,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:30:23,225 INFO L225 Difference]: With dead ends: 1799 [2021-11-22 15:30:23,225 INFO L226 Difference]: Without dead ends: 934 [2021-11-22 15:30:23,227 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-11-22 15:30:23,228 INFO L933 BasicCegarLoop]: 586 mSDtfsCounter, 0 mSDsluCounter, 1716 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2302 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:30:23,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 2302 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:30:23,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2021-11-22 15:30:23,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 934. [2021-11-22 15:30:23,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 934 states, 922 states have (on average 1.29175704989154) internal successors, (1191), 933 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:30:23,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 934 states to 934 states and 1191 transitions. [2021-11-22 15:30:23,262 INFO L78 Accepts]: Start accepts. Automaton has 934 states and 1191 transitions. Word has length 121 [2021-11-22 15:30:23,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:30:23,264 INFO L470 AbstractCegarLoop]: Abstraction has 934 states and 1191 transitions. [2021-11-22 15:30:23,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.5) internal successors, (129), 6 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:30:23,264 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states and 1191 transitions. [2021-11-22 15:30:23,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-11-22 15:30:23,266 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:30:23,266 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:30:23,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-22 15:30:23,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 15:30:23,483 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-11-22 15:30:23,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:30:23,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1622220694, now seen corresponding path program 1 times [2021-11-22 15:30:23,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:30:23,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737989317] [2021-11-22 15:30:23,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:30:23,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:30:23,504 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 15:30:23,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [302868272] [2021-11-22 15:30:23,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:30:23,505 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 15:30:23,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:30:23,506 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 15:30:23,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-22 15:30:24,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:30:24,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-22 15:30:24,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:30:24,501 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-22 15:30:24,501 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:30:24,804 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-22 15:30:24,804 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:30:24,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737989317] [2021-11-22 15:30:24,805 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 15:30:24,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [302868272] [2021-11-22 15:30:24,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [302868272] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 15:30:24,805 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-22 15:30:24,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6] total 13 [2021-11-22 15:30:24,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108527827] [2021-11-22 15:30:24,805 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-22 15:30:24,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-22 15:30:24,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:30:24,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-22 15:30:24,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2021-11-22 15:30:24,807 INFO L87 Difference]: Start difference. First operand 934 states and 1191 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:30:25,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:30:25,765 INFO L93 Difference]: Finished difference Result 2670 states and 3448 transitions. [2021-11-22 15:30:25,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-22 15:30:25,766 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 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 131 [2021-11-22 15:30:25,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:30:25,776 INFO L225 Difference]: With dead ends: 2670 [2021-11-22 15:30:25,776 INFO L226 Difference]: Without dead ends: 1793 [2021-11-22 15:30:25,778 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-22 15:30:25,779 INFO L933 BasicCegarLoop]: 1140 mSDtfsCounter, 2322 mSDsluCounter, 5851 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2322 SdHoareTripleChecker+Valid, 6991 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-22 15:30:25,779 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2322 Valid, 6991 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-22 15:30:25,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1793 states. [2021-11-22 15:30:25,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1793 to 964. [2021-11-22 15:30:25,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 964 states, 952 states have (on average 1.2857142857142858) internal successors, (1224), 963 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:30:25,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 964 states to 964 states and 1224 transitions. [2021-11-22 15:30:25,864 INFO L78 Accepts]: Start accepts. Automaton has 964 states and 1224 transitions. Word has length 131 [2021-11-22 15:30:25,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:30:25,865 INFO L470 AbstractCegarLoop]: Abstraction has 964 states and 1224 transitions. [2021-11-22 15:30:25,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:30:25,865 INFO L276 IsEmpty]: Start isEmpty. Operand 964 states and 1224 transitions. [2021-11-22 15:30:25,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-11-22 15:30:25,867 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:30:25,867 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:30:25,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-22 15:30:26,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-22 15:30:26,085 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-11-22 15:30:26,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:30:26,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1609817844, now seen corresponding path program 2 times [2021-11-22 15:30:26,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:30:26,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484374816] [2021-11-22 15:30:26,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:30:26,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:30:26,101 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 15:30:26,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [614709617] [2021-11-22 15:30:26,102 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-22 15:30:26,102 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 15:30:26,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:30:26,104 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 15:30:26,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87fed6f7-57fc-4314-936c-bdf35addfa19/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process